Adding upstream version 4:7.4.7.upstream/4%7.4.7 upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
author: Daniel Baumann <daniel.baumann@progress-linux.org> 2024-04-07 09:06:44 +0000
committer: Daniel Baumann <daniel.baumann@progress-linux.org> 2024-04-07 09:06:44 +0000
commit: ed5640d8b587fbcfed7dd7967f3de04b37a76f26 (patch)
tree: 7a5f7c6c9d02226d7471cb3cc8fbbf631b415303 /external/skia
parent: Initial commit. (diff)
download: libreoffice-cb75148ebd0135178ff46f89a30139c44f8d2040.tar.xz
libreoffice-cb75148ebd0135178ff46f89a30139c44f8d2040.zip
41 files changed, 23603 insertions, 0 deletions
diff --git a/external/skia/Library_skia.mk b/external/skia/Library_skia.mk
new file mode 100644
index 000000000..14c59c99c
--- /dev/null
+++ b/external/skia/Library_skia.mk
@@ -0,0 +1,1017 @@
+# -*- Mode: makefile-gmake; tab-width: 4; indent-tabs-mode: t -*-
+#
+# This file is part of the LibreOffice project.
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+#
+
+$(eval $(call gb_Library_Library,skia))
+
+$(eval $(call gb_Library_set_warnings_disabled,skia))
+
+$(eval $(call gb_Library_use_unpacked,skia,skia))
+
+$(eval $(call gb_Library_use_clang,skia))
+$(eval $(call gb_Library_set_clang_precompiled_header,skia,external/skia/inc/pch/precompiled_skia))
+
+$(eval $(call gb_Library_add_defs,skia,\
+    -DSKIA_IMPLEMENTATION=1 \
+    -DSKIA_DLL \
+    -DSK_USER_CONFIG_HEADER="<$(BUILDDIR)/config_host/config_skia.h>" \
+))
+
+# SK_DEBUG controls runtime checks and is controlled by config_skia.h and depends on DBG_UTIL.
+# This controls whether to build with compiler optimizations, normally yes, --enable-skia=debug
+# allows to build non-optimized. We normally wouldn't debug a 3rd-party library, and Skia
+# performance is relatively important (it may be the drawing engine used in software mode).
+# Some code may be always built with optimizations, even with Skia debug enabled (see
+# $(gb_COMPILEROPTFLAGS) usage).
+ifeq ($(ENABLE_SKIA_DEBUG),)
+$(eval $(call gb_Library_add_cxxflags,skia, \
+    $(gb_COMPILEROPTFLAGS) \
+    $(PCH_NO_CODEGEN) \
+))
+endif
+
+ifeq ($(OS),WNT)
+# Skia can be built with or without UNICODE set, in LO sources we explicitly use the *W unicode
+# variants, so build Skia with UNICODE to make it also use the *W variants.
+$(eval $(call gb_Library_add_defs,skia,\
+    -DUNICODE -D_UNICODE \
+))
+ifneq ($(gb_ENABLE_PCH),)
+$(eval $(call gb_Library_add_cxxflags,skia, \
+    -FIsrc/utils/win/SkDWriteNTDDI_VERSION.h \
+))
+endif
+
+$(eval $(call gb_Library_use_system_win32_libs,skia,\
+    fontsub \
+    ole32 \
+    oleaut32 \
+    user32 \
+    usp10 \
+    gdi32 \
+))
+
+# cl.exe (and thus clang-cl) likes to emit copies of inline functions even when not needed,
+# which means that for e.g. AVX-compiled sources the .o may contain a copy of an inline
+# function built using AVX, and the linker may select that copy as the one to keep, thus
+# introducing AVX code into generic code. Avoid generating such inlines. The flag currently
+# cannot be used for the whole Skia, because code built without the flag cannot use
+# libraries built with the flag, so cl.exe-built VCL would have undefined references.
+ifeq ($(HAVE_LO_CLANG_DLLEXPORTINLINES),TRUE)
+LO_SKIA_AVOID_INLINE_COPIES := -Zc:dllexportInlines-
+endif
+
+else ifeq ($(OS),MACOSX)
+
+$(eval $(call gb_Library_use_system_darwin_frameworks,skia,\
+    Cocoa \
+    Metal \
+    QuartzCore \
+))
+
+ifneq ($(SKIA_DISABLE_VMA_USE_STL_SHARED_MUTEX),)
+# Disable std::shared_mutex usage on MacOSX < 10.12.
+$(eval $(call gb_Library_add_defs,skia,\
+    -DVMA_USE_STL_SHARED_MUTEX=0 \
+))
+endif
+
+else
+$(eval $(call gb_Library_use_externals,skia,\
+    freetype \
+    fontconfig \
+))
+endif
+
+# we don't enable jpeg for skia, but it has incorrect #ifdef's in places
+$(eval $(call gb_Library_use_externals,skia,\
+    zlib \
+    libjpeg \
+    libpng \
+))
+
+ifeq ($(OS),LINUX)
+$(eval $(call gb_Library_add_libs,skia,\
+    -lm \
+    -ldl \
+    -lX11-xcb \
+    -lX11 \
+))
+endif
+
+$(eval $(call gb_Library_use_libraries,skia,\
+    sal \
+))
+
+$(eval $(call gb_Library_set_include,skia,\
+    $$(INCLUDE) \
+    -I$(call gb_UnpackedTarball_get_dir,skia) \
+    -I$(call gb_UnpackedTarball_get_dir,skia)/include/third_party/skcms/ \
+    -I$(call gb_UnpackedTarball_get_dir,skia)/third_party/vulkanmemoryallocator/ \
+    -I$(call gb_UnpackedTarball_get_dir,skia)/include/third_party/vulkan/ \
+    -I$(SRCDIR)/external/skia/inc/ \
+))
+
+$(eval $(call gb_Library_add_exception_objects,skia,\
+    external/skia/source/SkMemory_malloc \
+    external/skia/source/skia_compiler \
+    external/skia/source/skia_opts \
+))
+
+$(eval $(call gb_Library_set_generated_cxx_suffix,skia,cpp))
+
+$(eval $(call gb_Library_add_generated_exception_objects,skia,\
+    UnpackedTarball/skia/src/codec/SkAndroidCodecAdapter \
+    UnpackedTarball/skia/src/codec/SkAndroidCodec \
+    UnpackedTarball/skia/src/codec/SkBmpBaseCodec \
+    UnpackedTarball/skia/src/codec/SkBmpCodec \
+    UnpackedTarball/skia/src/codec/SkBmpMaskCodec \
+    UnpackedTarball/skia/src/codec/SkBmpRLECodec \
+    UnpackedTarball/skia/src/codec/SkBmpStandardCodec \
+    UnpackedTarball/skia/src/codec/SkCodec \
+    UnpackedTarball/skia/src/codec/SkCodecImageGenerator \
+    UnpackedTarball/skia/src/codec/SkColorTable \
+    UnpackedTarball/skia/src/codec/SkEncodedInfo \
+    UnpackedTarball/skia/src/codec/SkIcoCodec \
+    UnpackedTarball/skia/src/codec/SkMasks \
+    UnpackedTarball/skia/src/codec/SkMaskSwizzler \
+    UnpackedTarball/skia/src/codec/SkParseEncodedOrigin \
+    UnpackedTarball/skia/src/codec/SkPngCodec \
+    UnpackedTarball/skia/src/codec/SkSampledCodec \
+    UnpackedTarball/skia/src/codec/SkSampler \
+    UnpackedTarball/skia/src/codec/SkStreamBuffer \
+    UnpackedTarball/skia/src/codec/SkSwizzler \
+    UnpackedTarball/skia/src/codec/SkWbmpCodec \
+    UnpackedTarball/skia/src/core/SkAAClip \
+    UnpackedTarball/skia/src/core/SkAlphaRuns \
+    UnpackedTarball/skia/src/core/SkAnalyticEdge \
+    UnpackedTarball/skia/src/core/SkAnnotation \
+    UnpackedTarball/skia/src/core/SkArenaAlloc \
+    UnpackedTarball/skia/src/core/SkATrace \
+    UnpackedTarball/skia/src/core/SkAutoPixmapStorage \
+    UnpackedTarball/skia/src/core/SkBBHFactory \
+    UnpackedTarball/skia/src/core/SkBigPicture \
+    UnpackedTarball/skia/src/core/SkBitmapCache \
+    UnpackedTarball/skia/src/core/SkBitmap \
+    UnpackedTarball/skia/src/core/SkBitmapDevice \
+    UnpackedTarball/skia/src/core/SkBitmapProcState \
+    UnpackedTarball/skia/src/core/SkBitmapProcState_matrixProcs \
+    UnpackedTarball/skia/src/core/SkBlendMode \
+    UnpackedTarball/skia/src/core/SkBlendModeBlender \
+    UnpackedTarball/skia/src/core/SkBlitRow_D32 \
+    UnpackedTarball/skia/src/core/SkBlitter_ARGB32 \
+    UnpackedTarball/skia/src/core/SkBlitter_A8 \
+    UnpackedTarball/skia/src/core/SkBlitter \
+    UnpackedTarball/skia/src/core/SkBlitter_RGB565 \
+    UnpackedTarball/skia/src/core/SkBlitter_Sprite \
+    UnpackedTarball/skia/src/core/SkBlockAllocator \
+    UnpackedTarball/skia/src/core/SkBlurMask \
+    UnpackedTarball/skia/src/core/SkBlurMF \
+    UnpackedTarball/skia/src/core/SkBuffer \
+    UnpackedTarball/skia/src/core/SkCachedData \
+    UnpackedTarball/skia/src/core/SkCanvas \
+    UnpackedTarball/skia/src/core/SkCanvasPriv \
+    UnpackedTarball/skia/src/core/SkChromeRemoteGlyphCache \
+    UnpackedTarball/skia/src/core/SkClipStack \
+    UnpackedTarball/skia/src/core/SkClipStackDevice \
+    UnpackedTarball/skia/src/core/SkColor \
+    UnpackedTarball/skia/src/core/SkColorFilter \
+    UnpackedTarball/skia/src/core/SkColorFilter_Matrix \
+    UnpackedTarball/skia/src/core/SkColorSpace \
+    UnpackedTarball/skia/src/core/SkColorSpaceXformSteps \
+    UnpackedTarball/skia/src/core/SkCompressedDataUtils \
+    UnpackedTarball/skia/src/core/SkContourMeasure \
+    UnpackedTarball/skia/src/core/SkConvertPixels \
+    UnpackedTarball/skia/src/core/SkCpu \
+    UnpackedTarball/skia/src/core/SkCubicClipper \
+    UnpackedTarball/skia/src/core/SkCubicMap \
+    UnpackedTarball/skia/src/core/SkData \
+    UnpackedTarball/skia/src/core/SkDataTable \
+    UnpackedTarball/skia/src/core/SkDebug \
+    UnpackedTarball/skia/src/core/SkDeferredDisplayList \
+    UnpackedTarball/skia/src/core/SkDeferredDisplayListRecorder \
+    UnpackedTarball/skia/src/core/SkDeque \
+    UnpackedTarball/skia/src/core/SkDescriptor \
+    UnpackedTarball/skia/src/core/SkDevice \
+    UnpackedTarball/skia/src/core/SkDistanceFieldGen \
+    UnpackedTarball/skia/src/core/SkDocument \
+    UnpackedTarball/skia/src/core/SkDrawable \
+    UnpackedTarball/skia/src/core/SkDraw \
+    UnpackedTarball/skia/src/core/SkDrawLooper \
+    UnpackedTarball/skia/src/core/SkDrawShadowInfo \
+    UnpackedTarball/skia/src/core/SkDraw_atlas \
+    UnpackedTarball/skia/src/core/SkDraw_text \
+    UnpackedTarball/skia/src/core/SkDraw_vertices \
+    UnpackedTarball/skia/src/core/SkEdgeBuilder \
+    UnpackedTarball/skia/src/core/SkEdgeClipper \
+    UnpackedTarball/skia/src/core/SkEdge \
+    UnpackedTarball/skia/src/core/SkExecutor \
+    UnpackedTarball/skia/src/core/SkFlattenable \
+    UnpackedTarball/skia/src/core/SkFont \
+    UnpackedTarball/skia/src/core/SkFont_serial \
+    UnpackedTarball/skia/src/core/SkFontDescriptor \
+    UnpackedTarball/skia/src/core/SkFontMgr \
+    UnpackedTarball/skia/src/core/SkFontStream \
+    UnpackedTarball/skia/src/core/SkGaussFilter \
+    UnpackedTarball/skia/src/core/SkGeometry \
+    UnpackedTarball/skia/src/core/SkIDChangeListener \
+    UnpackedTarball/skia/src/core/SkGlobalInitialization_core \
+    UnpackedTarball/skia/src/core/SkGlyph \
+    UnpackedTarball/skia/src/core/SkGlyphBuffer \
+    UnpackedTarball/skia/src/core/SkGlyphRun \
+    UnpackedTarball/skia/src/core/SkGlyphRunPainter \
+    UnpackedTarball/skia/src/core/SkGraphics \
+    UnpackedTarball/skia/src/core/SkHalf \
+    UnpackedTarball/skia/src/core/SkICC \
+    UnpackedTarball/skia/src/core/SkImageFilterCache \
+    UnpackedTarball/skia/src/core/SkImageFilterTypes \
+    UnpackedTarball/skia/src/core/SkImageFilter \
+    UnpackedTarball/skia/src/core/SkImageGenerator \
+    UnpackedTarball/skia/src/core/SkImageInfo \
+    UnpackedTarball/skia/src/core/SkKeyContext \
+    UnpackedTarball/skia/src/core/SkKeyHelpers \
+    UnpackedTarball/skia/src/core/SkLatticeIter \
+    UnpackedTarball/skia/src/core/SkLineClipper \
+    UnpackedTarball/skia/src/core/SkLocalMatrixImageFilter \
+    UnpackedTarball/skia/src/core/SkMalloc \
+    UnpackedTarball/skia/src/core/SkMallocPixelRef \
+    UnpackedTarball/skia/src/core/SkMaskBlurFilter \
+    UnpackedTarball/skia/src/core/SkMaskCache \
+    UnpackedTarball/skia/src/core/SkMask \
+    UnpackedTarball/skia/src/core/SkMaskFilter \
+    UnpackedTarball/skia/src/core/SkMaskGamma \
+    UnpackedTarball/skia/src/core/SkMath \
+    UnpackedTarball/skia/src/core/SkMatrix \
+    UnpackedTarball/skia/src/core/SkMatrixImageFilter \
+    UnpackedTarball/skia/src/core/SkMatrixInvert \
+    UnpackedTarball/skia/src/core/SkM44 \
+    UnpackedTarball/skia/src/core/SkMD5 \
+    UnpackedTarball/skia/src/core/SkMesh \
+    UnpackedTarball/skia/src/core/SkMiniRecorder \
+    UnpackedTarball/skia/src/core/SkMipmap \
+    UnpackedTarball/skia/src/core/SkMipmapAccessor \
+    UnpackedTarball/skia/src/core/SkModeColorFilter \
+    UnpackedTarball/skia/src/core/SkOpts \
+    UnpackedTarball/skia/src/core/SkOpts_erms \
+    UnpackedTarball/skia/src/core/SkOverdrawCanvas \
+    UnpackedTarball/skia/src/core/SkPaint \
+    UnpackedTarball/skia/src/core/SkPaintParamsKey \
+    UnpackedTarball/skia/src/core/SkPaintPriv \
+    UnpackedTarball/skia/src/core/SkPath \
+    UnpackedTarball/skia/src/core/SkPathBuilder \
+    UnpackedTarball/skia/src/core/SkPathEffect \
+    UnpackedTarball/skia/src/core/SkPathMeasure \
+    UnpackedTarball/skia/src/core/SkPathRef \
+    UnpackedTarball/skia/src/core/SkPath_serial \
+    UnpackedTarball/skia/src/core/SkPipelineData \
+    UnpackedTarball/skia/src/core/SkPicture \
+    UnpackedTarball/skia/src/core/SkPictureData \
+    UnpackedTarball/skia/src/core/SkPictureFlat \
+    UnpackedTarball/skia/src/core/SkPictureImageGenerator \
+    UnpackedTarball/skia/src/core/SkPicturePlayback \
+    UnpackedTarball/skia/src/core/SkPictureRecord \
+    UnpackedTarball/skia/src/core/SkPictureRecorder \
+    UnpackedTarball/skia/src/core/SkPixelRef \
+    UnpackedTarball/skia/src/core/SkPixmap \
+    UnpackedTarball/skia/src/core/SkPoint \
+    UnpackedTarball/skia/src/core/SkPoint3 \
+    UnpackedTarball/skia/src/core/SkPromiseImageTexture \
+    UnpackedTarball/skia/src/core/SkPtrRecorder \
+    UnpackedTarball/skia/src/core/SkQuadClipper \
+    UnpackedTarball/skia/src/core/SkRasterClip \
+    UnpackedTarball/skia/src/core/SkRasterPipelineBlitter \
+    UnpackedTarball/skia/src/core/SkRasterPipeline \
+    UnpackedTarball/skia/src/core/SkReadBuffer \
+    UnpackedTarball/skia/src/core/SkRecord \
+    UnpackedTarball/skia/src/core/SkRecordDraw \
+    UnpackedTarball/skia/src/core/SkRecordedDrawable \
+    UnpackedTarball/skia/src/core/SkRecorder \
+    UnpackedTarball/skia/src/core/SkRecordOpts \
+    UnpackedTarball/skia/src/core/SkRecords \
+    UnpackedTarball/skia/src/core/SkRect \
+    UnpackedTarball/skia/src/core/SkRegion \
+    UnpackedTarball/skia/src/core/SkRegion_path \
+    UnpackedTarball/skia/src/core/SkResourceCache \
+    UnpackedTarball/skia/src/core/SkRRect \
+    UnpackedTarball/skia/src/core/SkRTree \
+    UnpackedTarball/skia/src/core/SkRuntimeEffect \
+    UnpackedTarball/skia/src/core/SkScalar \
+    UnpackedTarball/skia/src/core/SkScalerCache \
+    UnpackedTarball/skia/src/core/SkScalerContext \
+    UnpackedTarball/skia/src/core/SkScan_AAAPath \
+    UnpackedTarball/skia/src/core/SkScan_Antihair \
+    UnpackedTarball/skia/src/core/SkScan_AntiPath \
+    UnpackedTarball/skia/src/core/SkScan \
+    UnpackedTarball/skia/src/core/SkScan_Hairline \
+    UnpackedTarball/skia/src/core/SkScan_Path \
+    UnpackedTarball/skia/src/core/SkSemaphore \
+    UnpackedTarball/skia/src/core/SkShaderCodeDictionary \
+    UnpackedTarball/skia/src/core/SkSharedMutex \
+    UnpackedTarball/skia/src/core/SkSpecialImage \
+    UnpackedTarball/skia/src/core/SkSpecialSurface \
+    UnpackedTarball/skia/src/core/SkSpinlock \
+    UnpackedTarball/skia/src/core/SkSpriteBlitter_ARGB32 \
+    UnpackedTarball/skia/src/core/SkSpriteBlitter_RGB565 \
+    UnpackedTarball/skia/src/core/SkStream \
+    UnpackedTarball/skia/src/core/SkStrikeCache \
+    UnpackedTarball/skia/src/core/SkStrikeForGPU \
+    UnpackedTarball/skia/src/core/SkStrikeSpec \
+    UnpackedTarball/skia/src/core/SkString \
+    UnpackedTarball/skia/src/core/SkStringUtils \
+    UnpackedTarball/skia/src/core/SkStroke \
+    UnpackedTarball/skia/src/core/SkStrokeRec \
+    UnpackedTarball/skia/src/core/SkStrokerPriv \
+    UnpackedTarball/skia/src/core/SkSurfaceCharacterization \
+    UnpackedTarball/skia/src/core/SkSwizzle \
+    UnpackedTarball/skia/src/core/SkTaskGroup \
+    UnpackedTarball/skia/src/core/SkTextBlob \
+    UnpackedTarball/skia/src/core/SkTextBlobTrace \
+    UnpackedTarball/skia/src/core/SkThreadID \
+    UnpackedTarball/skia/src/core/SkTime \
+    UnpackedTarball/skia/src/core/SkTSearch \
+    UnpackedTarball/skia/src/core/SkTypefaceCache \
+    UnpackedTarball/skia/src/core/SkTypeface \
+    UnpackedTarball/skia/src/core/SkTypeface_remote \
+    UnpackedTarball/skia/src/core/SkUnPreMultiply \
+    UnpackedTarball/skia/src/core/SkUtilsArm \
+    UnpackedTarball/skia/src/core/SkUtils \
+    UnpackedTarball/skia/src/core/SkVertices \
+    UnpackedTarball/skia/src/core/SkVertState \
+    UnpackedTarball/skia/src/core/SkVM \
+    UnpackedTarball/skia/src/core/SkVMBlitter \
+    UnpackedTarball/skia/src/core/SkWriteBuffer \
+    UnpackedTarball/skia/src/core/SkWriter32 \
+    UnpackedTarball/skia/src/core/SkXfermode \
+    UnpackedTarball/skia/src/core/SkXfermodeInterpretation \
+    UnpackedTarball/skia/src/core/SkYUVAInfo \
+    UnpackedTarball/skia/src/core/SkYUVAPixmaps \
+    UnpackedTarball/skia/src/core/SkYUVMath \
+    UnpackedTarball/skia/src/core/SkYUVPlanesCache \
+    UnpackedTarball/skia/src/c/sk_effects \
+    UnpackedTarball/skia/src/c/sk_imageinfo \
+    UnpackedTarball/skia/src/c/sk_paint \
+    UnpackedTarball/skia/src/c/sk_surface \
+    UnpackedTarball/skia/src/effects/imagefilters/SkAlphaThresholdImageFilter \
+    UnpackedTarball/skia/src/effects/imagefilters/SkArithmeticImageFilter \
+    UnpackedTarball/skia/src/effects/imagefilters/SkBlendImageFilter \
+    UnpackedTarball/skia/src/effects/imagefilters/SkBlurImageFilter \
+    UnpackedTarball/skia/src/effects/imagefilters/SkColorFilterImageFilter \
+    UnpackedTarball/skia/src/effects/imagefilters/SkComposeImageFilter \
+    UnpackedTarball/skia/src/effects/imagefilters/SkCropImageFilter \
+    UnpackedTarball/skia/src/effects/imagefilters/SkDisplacementMapImageFilter \
+    UnpackedTarball/skia/src/effects/imagefilters/SkDropShadowImageFilter \
+    UnpackedTarball/skia/src/effects/imagefilters/SkImageImageFilter \
+    UnpackedTarball/skia/src/effects/imagefilters/SkLightingImageFilter \
+    UnpackedTarball/skia/src/effects/imagefilters/SkMagnifierImageFilter \
+    UnpackedTarball/skia/src/effects/imagefilters/SkMatrixConvolutionImageFilter \
+    UnpackedTarball/skia/src/effects/imagefilters/SkMergeImageFilter \
+    UnpackedTarball/skia/src/effects/imagefilters/SkMorphologyImageFilter \
+    UnpackedTarball/skia/src/effects/imagefilters/SkOffsetImageFilter \
+    UnpackedTarball/skia/src/effects/imagefilters/SkPictureImageFilter \
+    UnpackedTarball/skia/src/effects/imagefilters/SkShaderImageFilter \
+    UnpackedTarball/skia/src/effects/imagefilters/SkRuntimeImageFilter \
+    UnpackedTarball/skia/src/effects/imagefilters/SkTileImageFilter \
+    UnpackedTarball/skia/src/effects/SkBlenders \
+    UnpackedTarball/skia/src/effects/SkColorMatrix \
+    UnpackedTarball/skia/src/effects/SkColorMatrixFilter \
+    UnpackedTarball/skia/src/effects/SkCornerPathEffect \
+    UnpackedTarball/skia/src/effects/SkDashPathEffect \
+    UnpackedTarball/skia/src/effects/SkDiscretePathEffect \
+    UnpackedTarball/skia/src/effects/SkEmbossMask \
+    UnpackedTarball/skia/src/effects/SkEmbossMaskFilter \
+    UnpackedTarball/skia/src/effects/SkHighContrastFilter \
+    UnpackedTarball/skia/src/effects/SkLayerDrawLooper \
+    UnpackedTarball/skia/src/effects/SkLumaColorFilter \
+    UnpackedTarball/skia/src/effects/SkOpPathEffect \
+    UnpackedTarball/skia/src/effects/SkOverdrawColorFilter \
+    UnpackedTarball/skia/src/effects/SkShaderMaskFilter \
+    UnpackedTarball/skia/src/effects/SkTableColorFilter \
+    UnpackedTarball/skia/src/effects/SkTableMaskFilter \
+    UnpackedTarball/skia/src/effects/SkTrimPathEffect \
+    UnpackedTarball/skia/src/effects/Sk1DPathEffect \
+    UnpackedTarball/skia/src/effects/Sk2DPathEffect \
+    UnpackedTarball/skia/src/fonts/SkRemotableFontMgr \
+    UnpackedTarball/skia/src/image/SkImage \
+    UnpackedTarball/skia/src/image/SkImage_Lazy \
+    UnpackedTarball/skia/src/image/SkImage_Raster \
+    UnpackedTarball/skia/src/image/SkRescaleAndReadPixels \
+    UnpackedTarball/skia/src/image/SkSurface \
+    UnpackedTarball/skia/src/image/SkSurface_Raster \
+    UnpackedTarball/skia/src/images/SkImageEncoder \
+    UnpackedTarball/skia/src/images/SkPngEncoder \
+    UnpackedTarball/skia/src/images/SkWebpEncoder \
+    UnpackedTarball/skia/src/lazy/SkDiscardableMemoryPool \
+    UnpackedTarball/skia/src/pathops/SkAddIntersections \
+    UnpackedTarball/skia/src/pathops/SkDConicLineIntersection \
+    UnpackedTarball/skia/src/pathops/SkDCubicLineIntersection \
+    UnpackedTarball/skia/src/pathops/SkDCubicToQuads \
+    UnpackedTarball/skia/src/pathops/SkDLineIntersection \
+    UnpackedTarball/skia/src/pathops/SkDQuadLineIntersection \
+    UnpackedTarball/skia/src/pathops/SkIntersections \
+    UnpackedTarball/skia/src/pathops/SkOpAngle \
+    UnpackedTarball/skia/src/pathops/SkOpBuilder \
+    UnpackedTarball/skia/src/pathops/SkOpCoincidence \
+    UnpackedTarball/skia/src/pathops/SkOpContour \
+    UnpackedTarball/skia/src/pathops/SkOpCubicHull \
+    UnpackedTarball/skia/src/pathops/SkOpEdgeBuilder \
+    UnpackedTarball/skia/src/pathops/SkOpSegment \
+    UnpackedTarball/skia/src/pathops/SkOpSpan \
+    UnpackedTarball/skia/src/pathops/SkPathOpsAsWinding \
+    UnpackedTarball/skia/src/pathops/SkPathOpsCommon \
+    UnpackedTarball/skia/src/pathops/SkPathOpsConic \
+    UnpackedTarball/skia/src/pathops/SkPathOpsCubic \
+    UnpackedTarball/skia/src/pathops/SkPathOpsCurve \
+    UnpackedTarball/skia/src/pathops/SkPathOpsDebug \
+    UnpackedTarball/skia/src/pathops/SkPathOpsLine \
+    UnpackedTarball/skia/src/pathops/SkPathOpsOp \
+    UnpackedTarball/skia/src/pathops/SkPathOpsQuad \
+    UnpackedTarball/skia/src/pathops/SkPathOpsRect \
+    UnpackedTarball/skia/src/pathops/SkPathOpsSimplify \
+    UnpackedTarball/skia/src/pathops/SkPathOpsTightBounds \
+    UnpackedTarball/skia/src/pathops/SkPathOpsTSect \
+    UnpackedTarball/skia/src/pathops/SkPathOpsTypes \
+    UnpackedTarball/skia/src/pathops/SkPathOpsWinding \
+    UnpackedTarball/skia/src/pathops/SkPathWriter \
+    UnpackedTarball/skia/src/pathops/SkReduceOrder \
+    UnpackedTarball/skia/src/sfnt/SkOTTable_name \
+    UnpackedTarball/skia/src/sfnt/SkOTUtils \
+    UnpackedTarball/skia/src/shaders/gradients/SkGradientShader \
+    UnpackedTarball/skia/src/shaders/gradients/SkLinearGradient \
+    UnpackedTarball/skia/src/shaders/gradients/SkRadialGradient \
+    UnpackedTarball/skia/src/shaders/gradients/SkSweepGradient \
+    UnpackedTarball/skia/src/shaders/gradients/SkTwoPointConicalGradient \
+    UnpackedTarball/skia/src/shaders/gradients/Sk4fGradientBase \
+    UnpackedTarball/skia/src/shaders/gradients/Sk4fLinearGradient \
+    UnpackedTarball/skia/src/shaders/SkBitmapProcShader \
+    UnpackedTarball/skia/src/shaders/SkColorFilterShader \
+    UnpackedTarball/skia/src/shaders/SkColorShader \
+    UnpackedTarball/skia/src/shaders/SkComposeShader \
+    UnpackedTarball/skia/src/shaders/SkImageShader \
+    UnpackedTarball/skia/src/shaders/SkLocalMatrixShader \
+    UnpackedTarball/skia/src/shaders/SkPerlinNoiseShader \
+    UnpackedTarball/skia/src/shaders/SkPictureShader \
+    UnpackedTarball/skia/src/shaders/SkShader \
+    UnpackedTarball/skia/src/shaders/SkTransformShader \
+    UnpackedTarball/skia/src/sksl/dsl/DSLBlock \
+    UnpackedTarball/skia/src/sksl/dsl/DSLCase \
+    UnpackedTarball/skia/src/sksl/dsl/DSLCore \
+    UnpackedTarball/skia/src/sksl/dsl/DSLExpression \
+    UnpackedTarball/skia/src/sksl/dsl/DSLFunction \
+    UnpackedTarball/skia/src/sksl/dsl/DSLLayout \
+    UnpackedTarball/skia/src/sksl/dsl/DSLRuntimeEffects \
+    UnpackedTarball/skia/src/sksl/dsl/DSLStatement \
+    UnpackedTarball/skia/src/sksl/dsl/DSLSymbols \
+    UnpackedTarball/skia/src/sksl/dsl/DSLType \
+    UnpackedTarball/skia/src/sksl/dsl/DSLVar \
+    UnpackedTarball/skia/src/sksl/dsl/priv/DSLFPs \
+    UnpackedTarball/skia/src/sksl/dsl/priv/DSLWriter \
+    UnpackedTarball/skia/src/sksl/ir/SkSLBinaryExpression \
+    UnpackedTarball/skia/src/sksl/ir/SkSLBlock \
+    UnpackedTarball/skia/src/sksl/ir/SkSLChildCall \
+    UnpackedTarball/skia/src/sksl/ir/SkSLConstructor \
+    UnpackedTarball/skia/src/sksl/ir/SkSLConstructorArray \
+    UnpackedTarball/skia/src/sksl/ir/SkSLConstructorArrayCast \
+    UnpackedTarball/skia/src/sksl/ir/SkSLConstructorCompound \
+    UnpackedTarball/skia/src/sksl/ir/SkSLConstructorCompoundCast \
+    UnpackedTarball/skia/src/sksl/ir/SkSLConstructorDiagonalMatrix \
+    UnpackedTarball/skia/src/sksl/ir/SkSLConstructorMatrixResize \
+    UnpackedTarball/skia/src/sksl/ir/SkSLConstructorScalarCast \
+    UnpackedTarball/skia/src/sksl/ir/SkSLConstructorSplat \
+    UnpackedTarball/skia/src/sksl/ir/SkSLConstructorStruct \
+    UnpackedTarball/skia/src/sksl/ir/SkSLDoStatement \
+    UnpackedTarball/skia/src/sksl/ir/SkSLExpression \
+    UnpackedTarball/skia/src/sksl/ir/SkSLExpressionStatement \
+    UnpackedTarball/skia/src/sksl/ir/SkSLFieldAccess \
+    UnpackedTarball/skia/src/sksl/ir/SkSLForStatement \
+    UnpackedTarball/skia/src/sksl/ir/SkSLFunctionCall \
+    UnpackedTarball/skia/src/sksl/ir/SkSLFunctionDeclaration \
+    UnpackedTarball/skia/src/sksl/ir/SkSLFunctionDefinition \
+    UnpackedTarball/skia/src/sksl/ir/SkSLIfStatement \
+    UnpackedTarball/skia/src/sksl/ir/SkSLIndexExpression \
+    UnpackedTarball/skia/src/sksl/ir/SkSLModifiers \
+    UnpackedTarball/skia/src/sksl/ir/SkSLPrefixExpression \
+    UnpackedTarball/skia/src/sksl/ir/SkSLPostfixExpression \
+    UnpackedTarball/skia/src/sksl/ir/SkSLSetting \
+    UnpackedTarball/skia/src/sksl/ir/SkSLSwitchStatement \
+    UnpackedTarball/skia/src/sksl/ir/SkSLSwizzle \
+    UnpackedTarball/skia/src/sksl/ir/SkSLSymbolTable \
+    UnpackedTarball/skia/src/sksl/ir/SkSLTernaryExpression \
+    UnpackedTarball/skia/src/sksl/ir/SkSLType \
+    UnpackedTarball/skia/src/sksl/ir/SkSLTypeReference \
+    UnpackedTarball/skia/src/sksl/ir/SkSLVarDeclarations \
+    UnpackedTarball/skia/src/sksl/ir/SkSLVariable \
+    UnpackedTarball/skia/src/sksl/ir/SkSLVariableReference \
+    UnpackedTarball/skia/src/sksl/SkSLAnalysis \
+    UnpackedTarball/skia/src/sksl/SkSLBuiltinMap \
+    UnpackedTarball/skia/src/sksl/SkSLBuiltinTypes \
+    UnpackedTarball/skia/src/sksl/SkSLCompiler \
+    UnpackedTarball/skia/src/sksl/SkSLConstantFolder \
+    UnpackedTarball/skia/src/sksl/SkSLContext \
+    UnpackedTarball/skia/src/sksl/SkSLDSLParser \
+    UnpackedTarball/skia/src/sksl/SkSLDehydrator \
+    UnpackedTarball/skia/src/sksl/SkSLErrorReporter \
+    UnpackedTarball/skia/src/sksl/SkSLInliner \
+    UnpackedTarball/skia/src/sksl/SkSLLexer \
+    UnpackedTarball/skia/src/sksl/SkSLMangler \
+    UnpackedTarball/skia/src/sksl/SkSLOperator \
+    UnpackedTarball/skia/src/sksl/SkSLOutputStream \
+    UnpackedTarball/skia/src/sksl/SkSLPool \
+    UnpackedTarball/skia/src/sksl/SkSLPosition \
+    UnpackedTarball/skia/src/sksl/SkSLRehydrator \
+    UnpackedTarball/skia/src/sksl/SkSLSampleUsage \
+    UnpackedTarball/skia/src/sksl/SkSLSharedCompiler \
+    UnpackedTarball/skia/src/sksl/SkSLString \
+    UnpackedTarball/skia/src/sksl/SkSLThreadContext \
+    UnpackedTarball/skia/src/sksl/SkSLUtil \
+    UnpackedTarball/skia/src/sksl/analysis/SkSLCanExitWithoutReturningValue \
+    UnpackedTarball/skia/src/sksl/analysis/SkSLCheckProgramStructure \
+    UnpackedTarball/skia/src/sksl/analysis/SkSLFinalizationChecks \
+    UnpackedTarball/skia/src/sksl/analysis/SkSLGetLoopUnrollInfo \
+    UnpackedTarball/skia/src/sksl/analysis/SkSLIsConstantExpression \
+    UnpackedTarball/skia/src/sksl/analysis/SkSLIsSameExpressionTree \
+    UnpackedTarball/skia/src/sksl/analysis/SkSLProgramUsage \
+    UnpackedTarball/skia/src/sksl/analysis/SkSLSwitchCaseContainsExit \
+    UnpackedTarball/skia/src/sksl/codegen/SkSLGLSLCodeGenerator \
+    UnpackedTarball/skia/src/sksl/codegen/SkSLMetalCodeGenerator \
+    UnpackedTarball/skia/src/sksl/codegen/SkSLPipelineStageCodeGenerator \
+    UnpackedTarball/skia/src/sksl/codegen/SkSLSPIRVCodeGenerator \
+    UnpackedTarball/skia/src/sksl/codegen/SkSLSPIRVtoHLSL \
+    UnpackedTarball/skia/src/sksl/codegen/SkSLVMCodeGenerator \
+    UnpackedTarball/skia/src/sksl/codegen/SkSLWGSLCodeGenerator \
+    UnpackedTarball/skia/src/sksl/tracing/SkVMDebugTrace \
+    UnpackedTarball/skia/src/sksl/transform/SkSLBuiltinVariableScanner \
+    UnpackedTarball/skia/src/sksl/transform/SkSLEliminateDeadFunctions \
+    UnpackedTarball/skia/src/sksl/transform/SkSLEliminateDeadGlobalVariables \
+    UnpackedTarball/skia/src/sksl/transform/SkSLEliminateDeadLocalVariables \
+    UnpackedTarball/skia/src/sksl/transform/SkSLEliminateUnreachableCode \
+    UnpackedTarball/skia/src/utils/SkBase64 \
+    UnpackedTarball/skia/src/utils/SkCamera \
+    UnpackedTarball/skia/src/utils/SkCanvasStack \
+    UnpackedTarball/skia/src/utils/SkCanvasStateUtils \
+    UnpackedTarball/skia/src/utils/SkDashPath \
+    UnpackedTarball/skia/src/utils/SkEventTracer \
+    UnpackedTarball/skia/src/utils/SkFloatToDecimal \
+    UnpackedTarball/skia/src/utils/SkCharToGlyphCache \
+    UnpackedTarball/skia/src/utils/SkClipStackUtils \
+    UnpackedTarball/skia/src/utils/SkCustomTypeface \
+    UnpackedTarball/skia/src/utils/SkJSON \
+    UnpackedTarball/skia/src/utils/SkJSONWriter \
+    UnpackedTarball/skia/src/utils/SkMatrix22 \
+    UnpackedTarball/skia/src/utils/SkMultiPictureDocument \
+    UnpackedTarball/skia/src/utils/SkNullCanvas \
+    UnpackedTarball/skia/src/utils/SkNWayCanvas \
+    UnpackedTarball/skia/src/utils/SkOSPath \
+    UnpackedTarball/skia/src/utils/SkOrderedFontMgr \
+    UnpackedTarball/skia/src/utils/SkPaintFilterCanvas \
+    UnpackedTarball/skia/src/utils/SkParseColor \
+    UnpackedTarball/skia/src/utils/SkParse \
+    UnpackedTarball/skia/src/utils/SkParsePath \
+    UnpackedTarball/skia/src/utils/SkPatchUtils \
+    UnpackedTarball/skia/src/utils/SkPolyUtils \
+    UnpackedTarball/skia/src/utils/SkShaderUtils \
+    UnpackedTarball/skia/src/utils/SkShadowTessellator \
+    UnpackedTarball/skia/src/utils/SkShadowUtils \
+    UnpackedTarball/skia/src/utils/SkShaperJSONWriter \
+    UnpackedTarball/skia/src/utils/SkTextUtils \
+    UnpackedTarball/skia/src/utils/SkThreadUtils_pthread \
+    UnpackedTarball/skia/src/utils/SkThreadUtils_win \
+    UnpackedTarball/skia/src/utils/SkUTF \
+    UnpackedTarball/skia/src/utils/SkVMVisualizer \
+    UnpackedTarball/skia/src/xps/SkXPSDevice \
+    UnpackedTarball/skia/src/xps/SkXPSDocument \
+))
+
+ifneq ($(SKIA_GPU),)
+$(eval $(call gb_Library_add_generated_exception_objects,skia,\
+    UnpackedTarball/skia/src/core/SkGpuBlurUtils \
+    UnpackedTarball/skia/src/gpu/AtlasTypes \
+    UnpackedTarball/skia/src/gpu/Blend \
+    UnpackedTarball/skia/src/gpu/RectanizerPow2 \
+    UnpackedTarball/skia/src/gpu/RectanizerSkyline \
+    UnpackedTarball/skia/src/gpu/ResourceKey \
+    UnpackedTarball/skia/src/gpu/ShaderErrorHandler \
+    UnpackedTarball/skia/src/gpu/Swizzle \
+    UnpackedTarball/skia/src/gpu/ganesh/effects/GrBezierEffect \
+    UnpackedTarball/skia/src/gpu/ganesh/effects/GrBicubicEffect \
+    UnpackedTarball/skia/src/gpu/ganesh/effects/GrBitmapTextGeoProc \
+    UnpackedTarball/skia/src/gpu/ganesh/effects/GrBlendFragmentProcessor \
+    UnpackedTarball/skia/src/gpu/ganesh/effects/GrConvexPolyEffect \
+    UnpackedTarball/skia/src/gpu/ganesh/effects/GrCoverageSetOpXP \
+    UnpackedTarball/skia/src/gpu/ganesh/effects/GrCustomXfermode \
+    UnpackedTarball/skia/src/gpu/ganesh/effects/GrDisableColorXP \
+    UnpackedTarball/skia/src/gpu/ganesh/effects/GrDistanceFieldGeoProc \
+    UnpackedTarball/skia/src/gpu/ganesh/effects/GrGaussianConvolutionFragmentProcessor \
+    UnpackedTarball/skia/src/gpu/ganesh/effects/GrMatrixConvolutionEffect \
+    UnpackedTarball/skia/src/gpu/ganesh/effects/GrMatrixEffect \
+    UnpackedTarball/skia/src/gpu/ganesh/effects/GrModulateAtlasCoverageEffect \
+    UnpackedTarball/skia/src/gpu/ganesh/effects/GrOvalEffect \
+    UnpackedTarball/skia/src/gpu/ganesh/effects/GrPorterDuffXferProcessor \
+    UnpackedTarball/skia/src/gpu/ganesh/effects/GrRRectEffect \
+    UnpackedTarball/skia/src/gpu/ganesh/effects/GrShadowGeoProc \
+    UnpackedTarball/skia/src/gpu/ganesh/effects/GrSkSLFP \
+    UnpackedTarball/skia/src/gpu/ganesh/effects/GrTextureEffect \
+    UnpackedTarball/skia/src/gpu/ganesh/effects/GrYUVtoRGBEffect \
+    UnpackedTarball/skia/src/gpu/ganesh/geometry/GrPathUtils \
+    UnpackedTarball/skia/src/gpu/ganesh/geometry/GrQuad \
+    UnpackedTarball/skia/src/gpu/ganesh/geometry/GrQuadUtils \
+    UnpackedTarball/skia/src/gpu/ganesh/geometry/GrShape \
+    UnpackedTarball/skia/src/gpu/ganesh/geometry/GrStyledShape \
+    UnpackedTarball/skia/src/gpu/ganesh/glsl/GrGLSLBlend \
+    UnpackedTarball/skia/src/gpu/ganesh/glsl/GrGLSL \
+    UnpackedTarball/skia/src/gpu/ganesh/glsl/GrGLSLFragmentShaderBuilder \
+    UnpackedTarball/skia/src/gpu/ganesh/glsl/GrGLSLProgramBuilder \
+    UnpackedTarball/skia/src/gpu/ganesh/glsl/GrGLSLProgramDataManager \
+    UnpackedTarball/skia/src/gpu/ganesh/glsl/GrGLSLShaderBuilder \
+    UnpackedTarball/skia/src/gpu/ganesh/glsl/GrGLSLUniformHandler \
+    UnpackedTarball/skia/src/gpu/ganesh/glsl/GrGLSLVarying \
+    UnpackedTarball/skia/src/gpu/ganesh/glsl/GrGLSLVertexGeoBuilder \
+    UnpackedTarball/skia/src/gpu/ganesh/gradients/GrGradientBitmapCache \
+    UnpackedTarball/skia/src/gpu/ganesh/gradients/GrGradientShader \
+    UnpackedTarball/skia/src/gpu/ganesh/GrAHardwareBufferImageGenerator \
+    UnpackedTarball/skia/src/gpu/ganesh/GrAHardwareBufferUtils \
+    UnpackedTarball/skia/src/gpu/ganesh/GrAttachment \
+    UnpackedTarball/skia/src/gpu/ganesh/GrBackendSemaphore \
+    UnpackedTarball/skia/src/gpu/ganesh/GrBackendSurfaceMutableState \
+    UnpackedTarball/skia/src/gpu/ganesh/GrBackendSurface \
+    UnpackedTarball/skia/src/gpu/ganesh/GrBackendTextureImageGenerator \
+    UnpackedTarball/skia/src/gpu/ganesh/GrBackendUtils \
+    UnpackedTarball/skia/src/gpu/ganesh/GrBufferAllocPool \
+    UnpackedTarball/skia/src/gpu/ganesh/GrCaps \
+    UnpackedTarball/skia/src/gpu/ganesh/GrClientMappedBufferManager \
+    UnpackedTarball/skia/src/gpu/ganesh/GrColorInfo \
+    UnpackedTarball/skia/src/gpu/ganesh/GrColorSpaceXform \
+    UnpackedTarball/skia/src/gpu/ganesh/GrContext_Base \
+    UnpackedTarball/skia/src/gpu/ganesh/GrContextThreadSafeProxy \
+    UnpackedTarball/skia/src/gpu/ganesh/GrCopyRenderTask \
+    UnpackedTarball/skia/src/gpu/ganesh/GrDataUtils \
+    UnpackedTarball/skia/src/gpu/ganesh/GrDDLContext \
+    UnpackedTarball/skia/src/gpu/ganesh/GrDDLTask \
+    UnpackedTarball/skia/src/gpu/ganesh/GrDefaultGeoProcFactory \
+    UnpackedTarball/skia/src/gpu/ganesh/GrDirectContext \
+    UnpackedTarball/skia/src/gpu/ganesh/GrDirectContextPriv \
+    UnpackedTarball/skia/src/gpu/ganesh/GrDistanceFieldGenFromVector \
+    UnpackedTarball/skia/src/gpu/ganesh/GrDrawingManager \
+    UnpackedTarball/skia/src/gpu/ganesh/GrDrawOpAtlas \
+    UnpackedTarball/skia/src/gpu/ganesh/GrDriverBugWorkarounds \
+    UnpackedTarball/skia/src/gpu/ganesh/GrDynamicAtlas \
+    UnpackedTarball/skia/src/gpu/ganesh/GrEagerVertexAllocator \
+    UnpackedTarball/skia/src/gpu/ganesh/GrFinishCallbacks \
+    UnpackedTarball/skia/src/gpu/ganesh/GrFixedClip \
+    UnpackedTarball/skia/src/gpu/ganesh/GrFragmentProcessor \
+    UnpackedTarball/skia/src/gpu/ganesh/GrGeometryProcessor \
+    UnpackedTarball/skia/src/gpu/ganesh/GrGpu \
+    UnpackedTarball/skia/src/gpu/ganesh/GrGpuBuffer \
+    UnpackedTarball/skia/src/gpu/ganesh/GrGpuResource \
+    UnpackedTarball/skia/src/gpu/ganesh/GrImageContext \
+    UnpackedTarball/skia/src/gpu/ganesh/GrImageInfo \
+    UnpackedTarball/skia/src/gpu/ganesh/GrManagedResource \
+    UnpackedTarball/skia/src/gpu/ganesh/GrMemoryPool \
+    UnpackedTarball/skia/src/gpu/ganesh/GrMeshDrawTarget \
+    UnpackedTarball/skia/src/gpu/ganesh/GrOnFlushResourceProvider \
+    UnpackedTarball/skia/src/gpu/ganesh/GrOpFlushState \
+    UnpackedTarball/skia/src/gpu/ganesh/GrOpsRenderPass \
+    UnpackedTarball/skia/src/gpu/ganesh/GrPaint \
+    UnpackedTarball/skia/src/gpu/ganesh/GrPersistentCacheUtils \
+    UnpackedTarball/skia/src/gpu/ganesh/GrPipeline \
+    UnpackedTarball/skia/src/gpu/ganesh/GrProcessorAnalysis \
+    UnpackedTarball/skia/src/gpu/ganesh/GrProcessor \
+    UnpackedTarball/skia/src/gpu/ganesh/GrProcessorSet \
+    UnpackedTarball/skia/src/gpu/ganesh/GrProcessorUnitTest \
+    UnpackedTarball/skia/src/gpu/ganesh/GrProgramDesc \
+    UnpackedTarball/skia/src/gpu/ganesh/GrProgramInfo \
+    UnpackedTarball/skia/src/gpu/ganesh/GrProxyProvider \
+    UnpackedTarball/skia/src/gpu/ganesh/GrRecordingContext \
+    UnpackedTarball/skia/src/gpu/ganesh/GrRecordingContextPriv \
+    UnpackedTarball/skia/src/gpu/ganesh/GrRenderTask \
+    UnpackedTarball/skia/src/gpu/ganesh/GrRenderTaskCluster \
+    UnpackedTarball/skia/src/gpu/ganesh/GrRenderTarget \
+    UnpackedTarball/skia/src/gpu/ganesh/GrRenderTargetProxy \
+    UnpackedTarball/skia/src/gpu/ganesh/GrResourceAllocator \
+    UnpackedTarball/skia/src/gpu/ganesh/GrResourceCache \
+    UnpackedTarball/skia/src/gpu/ganesh/GrResourceProvider \
+    UnpackedTarball/skia/src/gpu/ganesh/GrRingBuffer \
+    UnpackedTarball/skia/src/gpu/ganesh/GrShaderCaps \
+    UnpackedTarball/skia/src/gpu/ganesh/GrShaderVar \
+    UnpackedTarball/skia/src/gpu/ganesh/GrSPIRVUniformHandler \
+    UnpackedTarball/skia/src/gpu/ganesh/GrSPIRVVaryingHandler \
+    UnpackedTarball/skia/src/gpu/ganesh/GrStagingBufferManager \
+    UnpackedTarball/skia/src/gpu/ganesh/GrStencilSettings \
+    UnpackedTarball/skia/src/gpu/ganesh/GrStyle \
+    UnpackedTarball/skia/src/gpu/ganesh/GrSurface \
+    UnpackedTarball/skia/src/gpu/ganesh/GrSurfaceInfo \
+    UnpackedTarball/skia/src/gpu/ganesh/GrSurfaceProxy \
+    UnpackedTarball/skia/src/gpu/ganesh/GrSWMaskHelper \
+    UnpackedTarball/skia/src/gpu/ganesh/GrTestUtils \
+    UnpackedTarball/skia/src/gpu/ganesh/GrUniformDataManager \
+    UnpackedTarball/skia/src/gpu/ganesh/GrTexture \
+    UnpackedTarball/skia/src/gpu/ganesh/GrTextureProxy \
+    UnpackedTarball/skia/src/gpu/ganesh/GrTextureRenderTargetProxy \
+    UnpackedTarball/skia/src/gpu/ganesh/GrTextureResolveRenderTask \
+    UnpackedTarball/skia/src/gpu/ganesh/GrThreadSafeCache \
+    UnpackedTarball/skia/src/gpu/ganesh/GrThreadSafePipelineBuilder \
+    UnpackedTarball/skia/src/gpu/ganesh/GrTransferFromRenderTask \
+    UnpackedTarball/skia/src/gpu/ganesh/GrUtil \
+    UnpackedTarball/skia/src/gpu/ganesh/GrVertexChunkArray \
+    UnpackedTarball/skia/src/gpu/ganesh/GrWaitRenderTask \
+    UnpackedTarball/skia/src/gpu/ganesh/GrWritePixelsRenderTask \
+    UnpackedTarball/skia/src/gpu/ganesh/GrXferProcessor \
+    UnpackedTarball/skia/src/gpu/ganesh/GrYUVABackendTextures \
+    UnpackedTarball/skia/src/gpu/ganesh/GrYUVATextureProxies \
+    UnpackedTarball/skia/src/gpu/ganesh/geometry/GrAAConvexTessellator \
+    UnpackedTarball/skia/src/gpu/ganesh/geometry/GrAATriangulator \
+    UnpackedTarball/skia/src/gpu/ganesh/geometry/GrTriangulator \
+    UnpackedTarball/skia/src/gpu/ganesh/mock/GrMockCaps \
+    UnpackedTarball/skia/src/gpu/ganesh/mock/GrMockGpu \
+    UnpackedTarball/skia/src/gpu/ganesh/mock/GrMockTypes \
+    UnpackedTarball/skia/src/gpu/ganesh/BaseDevice \
+    UnpackedTarball/skia/src/gpu/ganesh/SkGr \
+    UnpackedTarball/skia/src/gpu/ganesh/SurfaceContext \
+    UnpackedTarball/skia/src/gpu/ganesh/SurfaceFillContext \
+    UnpackedTarball/skia/src/gpu/ganesh/tessellate/GrPathTessellationShader \
+    UnpackedTarball/skia/src/gpu/ganesh/tessellate/GrStrokeTessellationShader \
+    UnpackedTarball/skia/src/gpu/ganesh/tessellate/GrTessellationShader \
+    UnpackedTarball/skia/src/gpu/ganesh/tessellate/PathTessellator \
+    UnpackedTarball/skia/src/gpu/ganesh/tessellate/StrokeTessellator \
+    UnpackedTarball/skia/src/gpu/ganesh/text/GrAtlasManager \
+    UnpackedTarball/skia/src/gpu/ganesh/text/GrDistanceFieldAdjustTable \
+    UnpackedTarball/skia/src/gpu/ganesh/text/GrSDFMaskFilter \
+    UnpackedTarball/skia/src/gpu/ganesh/text/GrSDFTControl \
+    UnpackedTarball/skia/src/gpu/ganesh/text/GrSlug \
+    UnpackedTarball/skia/src/gpu/ganesh/text/GrTextBlob \
+    UnpackedTarball/skia/src/gpu/ganesh/text/GrTextBlobRedrawCoordinator \
+    UnpackedTarball/skia/src/gpu/tessellate/FixedCountBufferUtils \
+    UnpackedTarball/skia/src/gpu/tessellate/Tessellation \
+    UnpackedTarball/skia/src/image/SkImage_GpuBase \
+    UnpackedTarball/skia/src/image/SkImage_Gpu \
+    UnpackedTarball/skia/src/image/SkImage_GpuYUVA \
+    UnpackedTarball/skia/src/image/SkSurface_Gpu \
+    UnpackedTarball/skia/src/text/gpu/GlyphVector \
+    UnpackedTarball/skia/src/text/gpu/StrikeCache \
+    UnpackedTarball/skia/src/text/gpu/SubRunAllocator \
+))
+
+$(eval $(call gb_Library_add_generated_exception_objects,skia,\
+    UnpackedTarball/skia/src/gpu/ganesh/GrAuditTrail \
+    UnpackedTarball/skia/src/gpu/ganesh/GrBlurUtils \
+    UnpackedTarball/skia/src/gpu/ganesh/GrDrawOpTest \
+    UnpackedTarball/skia/src/gpu/ganesh/ops/AAConvexPathRenderer \
+    UnpackedTarball/skia/src/gpu/ganesh/ops/AAHairLinePathRenderer \
+    UnpackedTarball/skia/src/gpu/ganesh/ops/AALinearizingConvexPathRenderer \
+    UnpackedTarball/skia/src/gpu/ganesh/ops/AtlasInstancedHelper \
+    UnpackedTarball/skia/src/gpu/ganesh/ops/AtlasPathRenderer \
+    UnpackedTarball/skia/src/gpu/ganesh/ops/AtlasRenderTask \
+    UnpackedTarball/skia/src/gpu/ganesh/ops/AtlasTextOp \
+    UnpackedTarball/skia/src/gpu/ganesh/ops/ClearOp \
+    UnpackedTarball/skia/src/gpu/ganesh/ops/DashLinePathRenderer \
+    UnpackedTarball/skia/src/gpu/ganesh/ops/DashOp \
+    UnpackedTarball/skia/src/gpu/ganesh/ops/DefaultPathRenderer \
+    UnpackedTarball/skia/src/gpu/ganesh/ops/DrawAtlasOp \
+    UnpackedTarball/skia/src/gpu/ganesh/ops/DrawAtlasPathOp \
+    UnpackedTarball/skia/src/gpu/ganesh/ops/DrawMeshOp \
+    UnpackedTarball/skia/src/gpu/ganesh/ops/DrawableOp \
+    UnpackedTarball/skia/src/gpu/ganesh/ops/FillRRectOp \
+    UnpackedTarball/skia/src/gpu/ganesh/ops/FillRectOp \
+    UnpackedTarball/skia/src/gpu/ganesh/ops/GrMeshDrawOp \
+    UnpackedTarball/skia/src/gpu/ganesh/ops/GrOp \
+    UnpackedTarball/skia/src/gpu/ganesh/ops/GrOvalOpFactory \
+    UnpackedTarball/skia/src/gpu/ganesh/ops/GrSimpleMeshDrawOpHelper \
+    UnpackedTarball/skia/src/gpu/ganesh/ops/GrSimpleMeshDrawOpHelperWithStencil \
+    UnpackedTarball/skia/src/gpu/ganesh/ops/LatticeOp \
+    UnpackedTarball/skia/src/gpu/ganesh/ops/OpsTask \
+    UnpackedTarball/skia/src/gpu/ganesh/ops/PathInnerTriangulateOp \
+    UnpackedTarball/skia/src/gpu/ganesh/ops/PathStencilCoverOp \
+    UnpackedTarball/skia/src/gpu/ganesh/ops/PathTessellateOp \
+    UnpackedTarball/skia/src/gpu/ganesh/ops/QuadPerEdgeAA \
+    UnpackedTarball/skia/src/gpu/ganesh/ops/RegionOp \
+    UnpackedTarball/skia/src/gpu/ganesh/ops/ShadowRRectOp \
+    UnpackedTarball/skia/src/gpu/ganesh/ops/SmallPathAtlasMgr \
+    UnpackedTarball/skia/src/gpu/ganesh/ops/SmallPathRenderer \
+    UnpackedTarball/skia/src/gpu/ganesh/ops/SmallPathShapeData \
+    UnpackedTarball/skia/src/gpu/ganesh/ops/SoftwarePathRenderer \
+    UnpackedTarball/skia/src/gpu/ganesh/ops/StrokeRectOp \
+    UnpackedTarball/skia/src/gpu/ganesh/ops/StrokeTessellateOp \
+    UnpackedTarball/skia/src/gpu/ganesh/ops/TessellationPathRenderer \
+    UnpackedTarball/skia/src/gpu/ganesh/ops/TextureOp \
+    UnpackedTarball/skia/src/gpu/ganesh/ops/TriangulatingPathRenderer \
+    UnpackedTarball/skia/src/gpu/ganesh/v1/ClipStack \
+    UnpackedTarball/skia/src/gpu/ganesh/v1/Device \
+    UnpackedTarball/skia/src/gpu/ganesh/v1/Device_drawTexture \
+    UnpackedTarball/skia/src/gpu/ganesh/v1/PathRenderer \
+    UnpackedTarball/skia/src/gpu/ganesh/v1/PathRendererChain \
+    UnpackedTarball/skia/src/gpu/ganesh/v1/StencilMaskHelper \
+    UnpackedTarball/skia/src/gpu/ganesh/v1/SurfaceDrawContext \
+    UnpackedTarball/skia/src/gpu/ganesh/v1/SurfaceFillContext_v1 \
+))
+
+ifeq ($(SKIA_GPU),VULKAN)
+$(eval $(call gb_Library_add_generated_exception_objects,skia,\
+    UnpackedTarball/skia/src/gpu/ganesh/vk/GrVkAMDMemoryAllocator \
+    UnpackedTarball/skia/src/gpu/ganesh/vk/GrVkBuffer \
+    UnpackedTarball/skia/src/gpu/ganesh/vk/GrVkCaps \
+    UnpackedTarball/skia/src/gpu/ganesh/vk/GrVkCommandBuffer \
+    UnpackedTarball/skia/src/gpu/ganesh/vk/GrVkCommandPool \
+    UnpackedTarball/skia/src/gpu/ganesh/vk/GrVkDescriptorPool \
+    UnpackedTarball/skia/src/gpu/ganesh/vk/GrVkDescriptorSet \
+    UnpackedTarball/skia/src/gpu/ganesh/vk/GrVkDescriptorSetManager \
+    UnpackedTarball/skia/src/gpu/ganesh/vk/GrVkExtensions \
+    UnpackedTarball/skia/src/gpu/ganesh/vk/GrVkFramebuffer \
+    UnpackedTarball/skia/src/gpu/ganesh/vk/GrVkGpu \
+    UnpackedTarball/skia/src/gpu/ganesh/vk/GrVkImage \
+    UnpackedTarball/skia/src/gpu/ganesh/vk/GrVkImageView \
+    UnpackedTarball/skia/src/gpu/ganesh/vk/GrVkInterface \
+    UnpackedTarball/skia/src/gpu/ganesh/vk/GrVkMSAALoadManager \
+    UnpackedTarball/skia/src/gpu/ganesh/vk/GrVkMemory \
+    UnpackedTarball/skia/src/gpu/ganesh/vk/GrVkOpsRenderPass \
+    UnpackedTarball/skia/src/gpu/ganesh/vk/GrVkPipeline \
+    UnpackedTarball/skia/src/gpu/ganesh/vk/GrVkPipelineStateBuilder \
+    UnpackedTarball/skia/src/gpu/ganesh/vk/GrVkPipelineStateCache \
+    UnpackedTarball/skia/src/gpu/ganesh/vk/GrVkPipelineState \
+    UnpackedTarball/skia/src/gpu/ganesh/vk/GrVkPipelineStateDataManager \
+    UnpackedTarball/skia/src/gpu/ganesh/vk/GrVkRenderPass \
+    UnpackedTarball/skia/src/gpu/ganesh/vk/GrVkRenderTarget \
+    UnpackedTarball/skia/src/gpu/ganesh/vk/GrVkResourceProvider \
+    UnpackedTarball/skia/src/gpu/ganesh/vk/GrVkSampler \
+    UnpackedTarball/skia/src/gpu/ganesh/vk/GrVkSamplerYcbcrConversion \
+    UnpackedTarball/skia/src/gpu/ganesh/vk/GrVkSecondaryCBDrawContext \
+    UnpackedTarball/skia/src/gpu/ganesh/vk/GrVkSemaphore \
+    UnpackedTarball/skia/src/gpu/ganesh/vk/GrVkTexture \
+    UnpackedTarball/skia/src/gpu/ganesh/vk/GrVkTextureRenderTarget \
+    UnpackedTarball/skia/src/gpu/ganesh/vk/GrVkTypesPriv \
+    UnpackedTarball/skia/src/gpu/ganesh/vk/GrVkUniformHandler \
+    UnpackedTarball/skia/src/gpu/ganesh/vk/GrVkUtil \
+    UnpackedTarball/skia/src/gpu/ganesh/vk/GrVkVaryingHandler \
+))
+
+$(eval $(call gb_Library_add_generated_exception_objects,skia,\
+    UnpackedTarball/skia/tools/gpu/vk/VkTestUtils \
+    UnpackedTarball/skia/tools/sk_app/VulkanWindowContext \
+    UnpackedTarball/skia/third_party/vulkanmemoryallocator/GrVulkanMemoryAllocator \
+))
+
+endif
+endif
+
+$(eval $(call gb_Library_add_generated_exception_objects,skia,\
+    UnpackedTarball/skia/src/ports/SkGlobalInitialization_default \
+    UnpackedTarball/skia/src/ports/SkImageGenerator_none \
+    UnpackedTarball/skia/src/ports/SkOSFile_stdio \
+))
+
+$(eval $(call gb_Library_add_exception_objects,skia,\
+    external/skia/source/skia_opts_ssse3, $(CXXFLAGS_INTRINSICS_SSSE3) $(LO_CLANG_CXXFLAGS_INTRINSICS_SSSE3) \
+))
+
+$(eval $(call gb_Library_add_generated_exception_objects,skia,\
+    UnpackedTarball/skia/src/opts/SkOpts_avx, $(CXXFLAGS_INTRINSICS_AVX) $(LO_CLANG_CXXFLAGS_INTRINSICS_AVX) \
+        $(LO_SKIA_AVOID_INLINE_COPIES) \
+))
+$(eval $(call gb_Library_add_generated_exception_objects,skia,\
+    UnpackedTarball/skia/src/opts/SkOpts_hsw, \
+        $(CXXFLAGS_INTRINSICS_AVX2) $(CXXFLAGS_INTRINSICS_F16C) $(CXXFLAGS_INTRINSICS_FMA) \
+        $(LO_CLANG_CXXFLAGS_INTRINSICS_AVX2) $(LO_CLANG_CXXFLAGS_INTRINSICS_F16C) $(LO_CLANG_CXXFLAGS_INTRINSICS_FMA) \
+        $(LO_SKIA_AVOID_INLINE_COPIES) \
+))
+$(eval $(call gb_Library_add_generated_exception_objects,skia,\
+    UnpackedTarball/skia/src/opts/SkOpts_sse41, $(CXXFLAGS_INTRINSICS_SSE41) $(LO_CLANG_CXXFLAGS_INTRINSICS_SSE41) \
+        $(LO_SKIA_AVOID_INLINE_COPIES) \
+))
+$(eval $(call gb_Library_add_generated_exception_objects,skia,\
+    UnpackedTarball/skia/src/opts/SkOpts_sse42, $(CXXFLAGS_INTRINSICS_SSE42) $(LO_CLANG_CXXFLAGS_INTRINSICS_SSE42) \
+        $(LO_SKIA_AVOID_INLINE_COPIES) \
+))
+$(eval $(call gb_Library_add_generated_exception_objects,skia,\
+    UnpackedTarball/skia/src/opts/SkOpts_ssse3, $(CXXFLAGS_INTRINSICS_SSSE3) $(LO_CLANG_CXXFLAGS_INTRINSICS_SSSE3) \
+        $(LO_SKIA_AVOID_INLINE_COPIES) \
+))
+$(eval $(call gb_Library_add_generated_exception_objects,skia,\
+    UnpackedTarball/skia/src/opts/SkOpts_crc32 \
+))
+
+$(eval $(call gb_Library_add_generated_exception_objects,skia,\
+    UnpackedTarball/skia/src/opts/SkOpts_skx, $(CXXFLAGS_INTRINSICS_AVX512)  $(LO_CLANG_CXXFLAGS_INTRINSICS_AVX512)\
+        $(LO_SKIA_AVOID_INLINE_COPIES) \
+))
+
+$(eval $(call gb_Library_add_generated_exception_objects,skia,\
+    UnpackedTarball/skia/tools/sk_app/WindowContext \
+))
+
+ifeq ($(OS),WNT)
+$(eval $(call gb_Library_add_generated_exception_objects,skia,\
+    UnpackedTarball/skia/src/ports/SkDebug_win \
+    UnpackedTarball/skia/src/ports/SkFontHost_win \
+    UnpackedTarball/skia/src/fonts/SkFontMgr_indirect \
+    UnpackedTarball/skia/src/ports/SkFontMgr_win_dw \
+    UnpackedTarball/skia/src/ports/SkFontMgr_win_dw_factory \
+    UnpackedTarball/skia/src/ports/SkOSFile_win \
+    UnpackedTarball/skia/src/ports/SkOSLibrary_win \
+    UnpackedTarball/skia/src/ports/SkScalerContext_win_dw \
+    UnpackedTarball/skia/src/ports/SkTypeface_win_dw \
+    UnpackedTarball/skia/src/utils/win/SkAutoCoInitialize \
+    UnpackedTarball/skia/src/utils/win/SkDWrite \
+    UnpackedTarball/skia/src/utils/win/SkDWriteFontFileStream \
+    UnpackedTarball/skia/src/utils/win/SkDWriteGeometrySink \
+    UnpackedTarball/skia/src/utils/win/SkHRESULT \
+    UnpackedTarball/skia/src/utils/win/SkIStream \
+))
+
+$(eval $(call gb_Library_add_generated_exception_objects,skia,\
+    UnpackedTarball/skia/tools/sk_app/win/RasterWindowContext_win \
+))
+
+ifeq ($(SKIA_GPU),VULKAN)
+$(eval $(call gb_Library_add_generated_exception_objects,skia,\
+    UnpackedTarball/skia/tools/sk_app/win/VulkanWindowContext_win \
+))
+endif
+
+else ifeq ($(OS),MACOSX)
+$(eval $(call gb_Library_add_generated_exception_objects,skia,\
+    UnpackedTarball/skia/src/ports/SkDebug_stdio \
+    UnpackedTarball/skia/src/ports/SkImageEncoder_CG \
+    UnpackedTarball/skia/src/ports/SkImageGeneratorCG \
+    UnpackedTarball/skia/src/ports/SkFontMgr_mac_ct \
+    UnpackedTarball/skia/src/ports/SkFontMgr_mac_ct_factory \
+    UnpackedTarball/skia/src/ports/SkScalerContext_mac_ct \
+    UnpackedTarball/skia/src/ports/SkTypeface_mac_ct \
+    UnpackedTarball/skia/src/ports/SkOSFile_posix \
+    UnpackedTarball/skia/src/ports/SkOSLibrary_posix \
+    UnpackedTarball/skia/src/utils/mac/SkCTFont \
+    UnpackedTarball/skia/src/utils/mac/SkCreateCGImageRef \
+))
+
+ifeq ($(SKIA_GPU),METAL)
+$(eval $(call gb_Library_add_generated_objcxxobjects,skia,\
+    UnpackedTarball/skia/tools/sk_app/MetalWindowContext \
+    UnpackedTarball/skia/tools/sk_app/mac/MetalWindowContext_mac \
+))
+
+# Not used, uses OpenGL - UnpackedTarball/skia/tools/sk_app/mac/RasterWindowContext_mac
+
+$(eval $(call gb_Library_add_generated_objcxxobjects,skia,\
+    UnpackedTarball/skia/src/gpu/ganesh/mtl/GrMtlAttachment \
+    UnpackedTarball/skia/src/gpu/ganesh/mtl/GrMtlBuffer \
+    UnpackedTarball/skia/src/gpu/ganesh/mtl/GrMtlCaps \
+    UnpackedTarball/skia/src/gpu/ganesh/mtl/GrMtlCommandBuffer \
+    UnpackedTarball/skia/src/gpu/ganesh/mtl/GrMtlDepthStencil \
+    UnpackedTarball/skia/src/gpu/ganesh/mtl/GrMtlFramebuffer \
+    UnpackedTarball/skia/src/gpu/ganesh/mtl/GrMtlGpu \
+    UnpackedTarball/skia/src/gpu/ganesh/mtl/GrMtlOpsRenderPass \
+    UnpackedTarball/skia/src/gpu/ganesh/mtl/GrMtlPipelineState \
+    UnpackedTarball/skia/src/gpu/ganesh/mtl/GrMtlPipelineStateBuilder \
+    UnpackedTarball/skia/src/gpu/ganesh/mtl/GrMtlPipelineStateDataManager \
+    UnpackedTarball/skia/src/gpu/ganesh/mtl/GrMtlRenderTarget \
+    UnpackedTarball/skia/src/gpu/ganesh/mtl/GrMtlResourceProvider \
+    UnpackedTarball/skia/src/gpu/ganesh/mtl/GrMtlSampler \
+    UnpackedTarball/skia/src/gpu/ganesh/mtl/GrMtlSemaphore \
+    UnpackedTarball/skia/src/gpu/ganesh/mtl/GrMtlTexture \
+    UnpackedTarball/skia/src/gpu/ganesh/mtl/GrMtlTextureRenderTarget \
+    UnpackedTarball/skia/src/gpu/ganesh/mtl/GrMtlTrampoline \
+    UnpackedTarball/skia/src/gpu/ganesh/mtl/GrMtlTypesPriv \
+    UnpackedTarball/skia/src/gpu/ganesh/mtl/GrMtlUniformHandler \
+    UnpackedTarball/skia/src/gpu/ganesh/mtl/GrMtlUtil \
+    UnpackedTarball/skia/src/gpu/ganesh/mtl/GrMtlVaryingHandler \
+    UnpackedTarball/skia/src/image/SkSurface_GpuMtl \
+    , -fobjc-arc \
+))
+endif
+
+else
+$(eval $(call gb_Library_add_generated_exception_objects,skia,\
+    UnpackedTarball/skia/src/ports/SkDebug_stdio \
+    UnpackedTarball/skia/src/ports/SkFontConfigInterface \
+    UnpackedTarball/skia/src/ports/SkFontConfigInterface_direct \
+    UnpackedTarball/skia/src/ports/SkFontConfigInterface_direct_factory \
+    UnpackedTarball/skia/src/ports/SkFontHost_FreeType_common \
+    UnpackedTarball/skia/src/ports/SkFontHost_FreeType \
+    UnpackedTarball/skia/src/ports/SkFontMgr_FontConfigInterface \
+    UnpackedTarball/skia/src/ports/SkFontMgr_fontconfig \
+    UnpackedTarball/skia/src/ports/SkFontMgr_fontconfig_factory \
+    UnpackedTarball/skia/src/ports/SkOSFile_posix \
+    UnpackedTarball/skia/src/ports/SkOSLibrary_posix \
+))
+
+$(eval $(call gb_Library_add_generated_exception_objects,skia,\
+    UnpackedTarball/skia/tools/sk_app/unix/RasterWindowContext_unix \
+))
+ifeq ($(SKIA_GPU),VULKAN)
+$(eval $(call gb_Library_add_generated_exception_objects,skia,\
+    UnpackedTarball/skia/tools/sk_app/unix/VulkanWindowContext_unix \
+))
+endif
+
+endif
+
+# Skcms code is used by png writer, which is used by SkiaHelper::dump(). Building
+# this without optimizations would mean having each pixel of saved images be
+# processed by unoptimized code.
+$(eval $(call gb_Library_add_generated_exception_objects,skia,\
+    UnpackedTarball/skia/third_party/skcms/skcms, $(gb_COMPILEROPTFLAGS) \
+))
+
+# vim: set noet sw=4 ts=4:
diff --git a/external/skia/Makefile b/external/skia/Makefile
new file mode 100644
index 000000000..e4968cf85
--- /dev/null
+++ b/external/skia/Makefile
@@ -0,0 +1,7 @@
+# -*- Mode: makefile-gmake; tab-width: 4; indent-tabs-mode: t -*-
+
+module_directory:=$(dir $(realpath $(firstword $(MAKEFILE_LIST))))
+
+include $(module_directory)/../../solenv/gbuild/partial_build.mk
+
+# vim: set noet sw=4 ts=4:
diff --git a/external/skia/Module_skia.mk b/external/skia/Module_skia.mk
new file mode 100644
index 000000000..4cb8b5157
--- /dev/null
+++ b/external/skia/Module_skia.mk
@@ -0,0 +1,18 @@
+# -*- Mode: makefile-gmake; tab-width: 4; indent-tabs-mode: t -*-
+#
+# This file is part of the LibreOffice project.
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+#
+
+$(eval $(call gb_Module_Module,skia))
+
+$(eval $(call gb_Module_add_targets,skia,\
+	UnpackedTarball_skia \
+	Library_skia \
+))
+
+
+# vim: set noet sw=4 ts=4:
diff --git a/external/skia/README b/external/skia/README
new file mode 100644
index 000000000..bf59a2384
--- /dev/null
+++ b/external/skia/README
@@ -0,0 +1,33 @@
+External package containing skia.
+
+https://skia.org/
+
+
+How to update the tarball:
+==========================
+
+git clone https://skia.googlesource.com/skia.git
+cd skia
+git checkout chrome/mXX
+id=$(git rev-parse chrome/mXX)
+git clean -idx
+rm -rf .git gitignore infra modules/canvaskit resources site
+cd ..
+tar cvJf skia-mXX-$id.tar.xz skia
+
+(where XX refers to the branch version)
+
+And review differences for BUILD.gn and relevant files in gn/ :
+git diff chrome/mYY..chrome/mXX ./BUILD.gn ./gn
+
+
+Debugging Skia:
+===============
+
+Note that Skia is always built optimized, unless you use --enable-skia=debug.
+
+
+GrContext sharing:
+==================
+
+For details about the share-grcontext patch, see vcl/skia/README.
diff --git a/external/skia/UnpackedTarball_skia.mk b/external/skia/UnpackedTarball_skia.mk
new file mode 100644
index 000000000..f88cb371d
--- /dev/null
+++ b/external/skia/UnpackedTarball_skia.mk
@@ -0,0 +1,53 @@
+# -*- Mode: makefile-gmake; tab-width: 4; indent-tabs-mode: t -*-
+#
+# This file is part of the LibreOffice project.
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+#
+
+$(eval $(call gb_UnpackedTarball_UnpackedTarball,skia))
+
+$(eval $(call gb_UnpackedTarball_set_tarball,skia,$(SKIA_TARBALL)))
+
+skia_patches := \
+    fix-pch.patch.1 \
+    fix-ddi.patch \
+    make-api-visible.patch.1 \
+    no-trace-resources-on-exit.patch.1 \
+    fix-alpha-difference-copy.patch.1 \
+    share-grcontext.patch.1 \
+    clang11-flax-vector-conversion.patch.0 \
+    clang-attributes-warning.patch.1 \
+    fontconfig-get-typeface.patch.0 \
+    windows-do-not-modify-logfont.patch.0 \
+    windows-text-gamma.patch.0 \
+    windows-force-unicode-api.patch.0 \
+    fix-without-gl.patch.1 \
+    windows-typeface-directwrite.patch.0 \
+    windows-raster-surface-no-copies.patch.1 \
+    fix-windows-dwrite.patch.1 \
+    swap-buffers-rect.patch.1 \
+    ubsan.patch.1 \
+    fast-png-write.patch.1 \
+    skia_sk_cpu_sse_level_0_by_default.patch.1 \
+    fix-warnings.patch.1 \
+    windows-libraries-system32.patch.1 \
+    fix-graphite-ifdef.patch.1 \
+    allow-no-es2restrictions.patch.1 \
+    vk_mem_alloc.patch.1 \
+    tdf148624.patch.1 \
+    missing-include.patch.0 \
+
+$(eval $(call gb_UnpackedTarball_set_patchlevel,skia,1))
+
+$(eval $(call gb_UnpackedTarball_add_patches,skia,\
+    $(foreach patch,$(skia_patches),external/skia/$(patch)) \
+))
+
+$(eval $(call gb_UnpackedTarball_set_post_action,skia,\
+    mv third_party/skcms/skcms.cc third_party/skcms/skcms.cpp \
+))
+
+# vim: set noet sw=4 ts=4:
diff --git a/external/skia/allow-no-es2restrictions.patch.1 b/external/skia/allow-no-es2restrictions.patch.1
new file mode 100644
index 000000000..ea2dd0219
--- /dev/null
+++ b/external/skia/allow-no-es2restrictions.patch.1
@@ -0,0 +1,13 @@
+diff --git a/include/effects/SkRuntimeEffect.h b/include/effects/SkRuntimeEffect.h
+index e424910b34..cee7794d3a 100644
+--- a/include/effects/SkRuntimeEffect.h
++++ b/include/effects/SkRuntimeEffect.h
+@@ -108,7 +108,7 @@ public:
+         // painted.)
+         bool forceUnoptimized = false;
+ 
+-    private:
++//    private:
+         friend class SkRuntimeEffect;
+         friend class SkRuntimeEffectPriv;
+ 
diff --git a/external/skia/clang-attributes-warning.patch.1 b/external/skia/clang-attributes-warning.patch.1
new file mode 100644
index 000000000..6384735e9
--- /dev/null
+++ b/external/skia/clang-attributes-warning.patch.1
@@ -0,0 +1,31 @@
+diff --git a/include/private/SkFloatingPoint.h b/include/private/SkFloatingPoint.h
+index 3c6d22c310..60500b2d2c 100644
+--- a/include/private/SkFloatingPoint.h
++++ b/include/private/SkFloatingPoint.h
+@@ -159,7 +159,9 @@ static inline int64_t sk_float_saturate2int64(float x) {
+ // Cast double to float, ignoring any warning about too-large finite values being cast to float.
+ // Clang thinks this is undefined, but it's actually implementation defined to return either
+ // the largest float or infinity (one of the two bracketing representable floats).  Good enough!
++#if defined(__clang__)
+ SK_ATTRIBUTE(no_sanitize("float-cast-overflow"))
++#endif
+ static inline float sk_double_to_float(double x) {
+     return static_cast<float>(x);
+ }
+@@ -242,12 +244,16 @@ static inline int sk_float_nextlog2(float x) {
+ // IEEE defines how float divide behaves for non-finite values and zero-denoms, but C does not
+ // so we have a helper that suppresses the possible undefined-behavior warnings.
+ 
++#if defined(__clang__)
+ SK_ATTRIBUTE(no_sanitize("float-divide-by-zero"))
++#endif
+ static inline float sk_ieee_float_divide(float numer, float denom) {
+     return numer / denom;
+ }
+ 
++#if defined(__clang__)
+ SK_ATTRIBUTE(no_sanitize("float-divide-by-zero"))
++#endif
+ static inline double sk_ieee_double_divide(double numer, double denom) {
+     return numer / denom;
+ }
diff --git a/external/skia/clang11-flax-vector-conversion.patch.0 b/external/skia/clang11-flax-vector-conversion.patch.0
new file mode 100644
index 000000000..40cf4e0a4
--- /dev/null
+++ b/external/skia/clang11-flax-vector-conversion.patch.0
@@ -0,0 +1,11 @@
+--- src/opts/SkRasterPipeline_opts.h
++++ src/opts/SkRasterPipeline_opts.h
+@@ -68,7 +68,7 @@
+ };
+ 
+ 
+-#if !defined(__clang__)
++#if !defined(__clang__) || __clang_major__ >= 11
+     #define JUMPER_IS_SCALAR
+ #elif defined(SK_ARM_HAS_NEON)
+     #define JUMPER_IS_NEON
diff --git a/external/skia/fast-png-write.patch.1 b/external/skia/fast-png-write.patch.1
new file mode 100644
index 000000000..f47a2af70
--- /dev/null
+++ b/external/skia/fast-png-write.patch.1
@@ -0,0 +1,15 @@
+diff --git a/src/images/SkImageEncoder.cpp b/src/images/SkImageEncoder.cpp
+index a96a93e0fc..1c110afa58 100644
+--- a/src/images/SkImageEncoder.cpp
++++ b/src/images/SkImageEncoder.cpp
+@@ -46,6 +46,10 @@ bool SkEncodeImage(SkWStream* dst, const SkPixmap& src,
+             }
+             case SkEncodedImageFormat::kPNG: {
+                 SkPngEncoder::Options opts;
++                if (quality == 1) {
++                    opts.fFilterFlags = SkPngEncoder::FilterFlag::kNone;
++                    opts.fZLibLevel = 1;
++                }
+                 return SkPngEncoder::Encode(dst, src, opts);
+             }
+             case SkEncodedImageFormat::kWEBP: {
diff --git a/external/skia/fix-alpha-difference-copy.patch.1 b/external/skia/fix-alpha-difference-copy.patch.1
new file mode 100644
index 000000000..61a61e621
--- /dev/null
+++ b/external/skia/fix-alpha-difference-copy.patch.1
@@ -0,0 +1,13 @@
+diff --git a/src/core/SkBlitter_Sprite.cpp b/src/core/SkBlitter_Sprite.cpp
+index df7d9a7025..7f94c2a660 100644
+--- a/src/core/SkBlitter_Sprite.cpp
++++ b/src/core/SkBlitter_Sprite.cpp
+@@ -191,7 +191,7 @@ SkBlitter* SkBlitter::ChooseSprite(const SkPixmap& dst, const SkPaint& paint,
+     }
+ 
+     // TODO: in principle SkRasterPipelineSpriteBlitter could be made to handle this.
+-    if (source.alphaType() == kUnpremul_SkAlphaType) {
++    if (source.alphaType() != dst.alphaType()) {
+         return nullptr;
+     }
+ 
diff --git a/external/skia/fix-ddi.patch b/external/skia/fix-ddi.patch
new file mode 100644
index 000000000..f827c1d69
--- /dev/null
+++ b/external/skia/fix-ddi.patch
@@ -0,0 +1,9 @@
+--- skia/src/utils/win/SkDWriteNTDDI_VERSION.h.sav	2019-08-15 21:59:46.000000000 +0200
++++ skia/src/utils/win/SkDWriteNTDDI_VERSION.h	2019-09-26 15:30:36.395622200 +0200
+@@ -28,4 +28,6 @@
+ #  endif
+ #endif
+ 
++#define NTDDI_VERSION 0x0A000002 // NTDDI_WIN10_RS1
++
+ #endif
diff --git a/external/skia/fix-graphite-ifdef.patch.1 b/external/skia/fix-graphite-ifdef.patch.1
new file mode 100644
index 000000000..4ed2ff252
--- /dev/null
+++ b/external/skia/fix-graphite-ifdef.patch.1
@@ -0,0 +1,48 @@
+diff --git a/include/core/SkImage.h b/include/core/SkImage.h
+index 9ca9317408..fee18fe58c 100644
+--- a/include/core/SkImage.h
++++ b/include/core/SkImage.h
+@@ -17,7 +17,7 @@
+ #if SK_SUPPORT_GPU
+ #include "include/gpu/GrTypes.h"
+ #endif
+-#if SK_GRAPHITE_ENABLED
++#ifdef SK_GRAPHITE_ENABLED
+ #include "include/gpu/graphite/GraphiteTypes.h"
+ #endif
+ #include <functional>  // std::function
+@@ -49,7 +49,7 @@ class SkYUVAPixmaps;
+ 
+ enum class SkEncodedImageFormat;
+ 
+-#if SK_GRAPHITE_ENABLED
++#ifdef SK_GRAPHITE_ENABLED
+ namespace skgpu::graphite {
+ class Recorder;
+ };
+diff --git a/include/core/SkTypes.h b/include/core/SkTypes.h
+index 5301361a2b..8adaf3ac09 100644
+--- a/include/core/SkTypes.h
++++ b/include/core/SkTypes.h
+@@ -236,7 +236,7 @@
+ #  define SK_SUPPORT_GPU 1
+ #endif
+ 
+-#if SK_SUPPORT_GPU || SK_GRAPHITE_ENABLED
++#if SK_SUPPORT_GPU || defined(SK_GRAPHITE_ENABLED)
+ #  if !defined(SK_ENABLE_SKSL)
+ #    define SK_ENABLE_SKSL
+ #  endif
+diff --git a/tools/sk_app/WindowContext.h b/tools/sk_app/WindowContext.h
+index 65ab8b9aa4..c1bc7fb03a 100644
+--- a/tools/sk_app/WindowContext.h
++++ b/tools/sk_app/WindowContext.h
+@@ -58,7 +58,7 @@ protected:
+     virtual bool isGpuContext() { return true;  }
+ 
+     sk_sp<GrDirectContext> fContext;
+-#if SK_GRAPHITE_ENABLED
++#ifdef SK_GRAPHITE_ENABLED
+     std::unique_ptr<skgpu::graphite::Context> fGraphiteContext;
+     std::unique_ptr<skgpu::graphite::Recorder> fGraphiteRecorder;
+ #endif
diff --git a/external/skia/fix-pch.patch.1 b/external/skia/fix-pch.patch.1
new file mode 100644
index 000000000..a2fe81562
--- /dev/null
+++ b/external/skia/fix-pch.patch.1
@@ -0,0 +1,106 @@
+diff --git a/include/core/SkColor.h b/include/core/SkColor.h
+index a6e63def23..1c0655c3d7 100644
+--- a/include/core/SkColor.h
++++ b/include/core/SkColor.h
+@@ -420,6 +420,7 @@ using SkColor4f = SkRGBA4f<kUnpremul_SkAlphaType>;
+ 
+ template <> SK_API SkColor4f SkColor4f::FromColor(SkColor);
+ template <> SK_API SkColor   SkColor4f::toSkColor() const;
++template <> uint32_t SkColor4f::toBytes_RGBA() const;
+ 
+ namespace SkColors {
+ constexpr SkColor4f kTransparent = {0, 0, 0, 0};
+diff --git a/include/private/SkColorData.h b/include/private/SkColorData.h
+index a59e7b0446..960b4c0313 100644
+--- a/include/private/SkColorData.h
++++ b/include/private/SkColorData.h
+@@ -438,4 +438,6 @@ constexpr SkPMColor4f SK_PMColor4fILLEGAL = { SK_FloatNegativeInfinity,
+                                               SK_FloatNegativeInfinity,
+                                               SK_FloatNegativeInfinity };
+ 
++template <> uint32_t SkPMColor4f::toBytes_RGBA() const;
++
+ #endif
+diff --git a/src/core/SkM44.cpp b/src/core/SkM44.cpp
+index 02b1741763..4cece999d2 100644
+--- a/src/core/SkM44.cpp
++++ b/src/core/SkM44.cpp
+@@ -341,6 +341,8 @@ SkM44 SkM44::LookAt(const SkV3& eye, const SkV3& center, const SkV3& up) {
+     return m;
+ }
+ 
++#undef near
++#undef far
+ SkM44 SkM44::Perspective(float near, float far, float angle) {
+     SkASSERT(far > near);
+ 
+diff --git a/src/gpu/ganesh/vk/GrVkSemaphore.cpp b/src/gpu/ganesh/vk/GrVkSemaphore.cpp
+index 70c7f0ea80..ab8319a447 100644
+--- a/src/gpu/ganesh/vk/GrVkSemaphore.cpp
++++ b/src/gpu/ganesh/vk/GrVkSemaphore.cpp
+@@ -10,6 +10,7 @@
+ #include "include/gpu/GrBackendSemaphore.h"
+ #include "src/gpu/ganesh/vk/GrVkGpu.h"
+ #include "src/gpu/ganesh/vk/GrVkUtil.h"
++#include "tools/gpu/vk/GrVulkanDefines.h"
+ 
+ #ifdef VK_USE_PLATFORM_WIN32_KHR
+ // windows wants to define this as CreateSemaphoreA or CreateSemaphoreW
+diff --git a/src/sksl/ir/SkSLPoison.h b/src/sksl/ir/SkSLPoison.h
+index 035f94e1f6..3cf12db902 100644
+--- a/src/sksl/ir/SkSLPoison.h
++++ b/src/sksl/ir/SkSLPoison.h
+@@ -5,6 +5,9 @@
+  * found in the LICENSE file.
+  */
+ 
++#ifndef SKSL_POISON
++#define SKSL_POISON
++
+ #include "src/sksl/SkSLCompiler.h"
+ #include "src/sksl/SkSLContext.h"
+ 
+@@ -38,3 +41,5 @@ private:
+ };
+ 
+ } // namespace SkSL
++
++#endif
+diff --git a/src/utils/win/SkDWriteGeometrySink.h b/src/utils/win/SkDWriteGeometrySink.h
+index af4909aaaf..825ec35c83 100644
+--- a/src/utils/win/SkDWriteGeometrySink.h
++++ b/src/utils/win/SkDWriteGeometrySink.h
+@@ -13,6 +13,8 @@
+ 
+ class SkPath;
+ 
++#define CONST const
++
+ #include <dwrite.h>
+ #include <d2d1.h>
+ 
+diff --git a/third_party/skcms/skcms.cc b/third_party/skcms/skcms.cc
+index 1b643f45cf..c1981110da 100644
+--- a/third_party/skcms/skcms.cc
++++ b/third_party/skcms/skcms.cc
+@@ -130,7 +130,8 @@ static float minus_1_ulp(float x) {
+ // Most transfer functions we work with are sRGBish.
+ // For exotic HDR transfer functions, we encode them using a tf.g that makes no sense,
+ // and repurpose the other fields to hold the parameters of the HDR functions.
+-enum TFKind { Bad, sRGBish, PQish, HLGish, HLGinvish };
++enum TFKind_skcms { Bad, sRGBish, PQish, HLGish, HLGinvish };
++#define TFKind TFKind_skcms
+ struct TF_PQish  { float A,B,C,D,E,F; };
+ struct TF_HLGish { float R,G,a,b,c,K_minus_1; };
+ // We didn't originally support a scale factor K for HLG, and instead just stored 0 in
+@@ -2318,7 +2319,9 @@ typedef enum {
+     Op_store_hhhh,
+     Op_store_fff,
+     Op_store_ffff,
+-} Op;
++} Op_skcms;
++
++#define Op Op_skcms
+ 
+ #if defined(__clang__)
+     template <int N, typename T> using Vec = T __attribute__((ext_vector_type(N)));
diff --git a/external/skia/fix-warnings.patch.1 b/external/skia/fix-warnings.patch.1
new file mode 100644
index 000000000..2aefd91c5
--- /dev/null
+++ b/external/skia/fix-warnings.patch.1
@@ -0,0 +1,39 @@
+diff --git a/include/core/SkFontParameters.h b/include/core/SkFontParameters.h
+index ae4f1d68b6..71263da7c5 100644
+--- a/include/core/SkFontParameters.h
++++ b/include/core/SkFontParameters.h
+@@ -16,8 +16,8 @@ struct SkFontParameters {
+         // Parameters in a variation font axis.
+         struct Axis {
+             constexpr Axis() : tag(0), min(0), def(0), max(0), flags(0) {}
+-            constexpr Axis(SkFourByteTag tag, float min, float def, float max, bool hidden) :
+-                tag(tag), min(min), def(def), max(max), flags(hidden ? HIDDEN : 0) {}
++            constexpr Axis(SkFourByteTag _tag, float _min, float _def, float _max, bool hidden) :
++                tag(_tag), min(_min), def(_def), max(_max), flags(hidden ? HIDDEN : 0) {}
+ 
+             // Four character identifier of the font axis (weight, width, slant, italic...).
+             SkFourByteTag tag;
+diff --git a/tools/sk_app/WindowContext.h b/tools/sk_app/WindowContext.h
+index f143dab013..be3cde0f4f 100644
+--- a/tools/sk_app/WindowContext.h
++++ b/tools/sk_app/WindowContext.h
+@@ -31,7 +31,7 @@ public:
+ 
+     virtual void resize(int w, int h) = 0;
+ 
+-    virtual void activate(bool isActive) {}
++    virtual void activate(bool /*isActive*/) {}
+ 
+     const DisplayParams& getDisplayParams() { return fDisplayParams; }
+     virtual void setDisplayParams(const DisplayParams& params) = 0;
+--- skia/include/core/SkSamplingOptions.h.orig	2022-05-22 12:25:06.112544528 +0200
++++ skia/include/core/SkSamplingOptions.h	2022-05-22 12:25:09.207636134 +0200
+@@ -97,7 +97,7 @@
+     bool isAniso() const { return maxAniso != 0; }
+ 
+ private:
+-    SkSamplingOptions(int maxAniso) : maxAniso(maxAniso) {}
++    SkSamplingOptions(int maxAniso_) : maxAniso(maxAniso_) {}
+ };
+ 
+ #endif
diff --git a/external/skia/fix-windows-dwrite.patch.1 b/external/skia/fix-windows-dwrite.patch.1
new file mode 100644
index 000000000..b5f216a52
--- /dev/null
+++ b/external/skia/fix-windows-dwrite.patch.1
@@ -0,0 +1,40 @@
+diff --git a/src/ports/SkFontMgr_win_dw.cpp b/src/ports/SkFontMgr_win_dw.cpp
+index 6a4748f91c..50086a7780 100644
+--- a/src/ports/SkFontMgr_win_dw.cpp
++++ b/src/ports/SkFontMgr_win_dw.cpp
+@@ -361,6 +361,7 @@ static bool FindByDWriteFont(SkTypeface* cached, void* ctx) {
+     DWriteFontTypeface* cshFace = reinterpret_cast<DWriteFontTypeface*>(cached);
+     ProtoDWriteTypeface* ctxFace = reinterpret_cast<ProtoDWriteTypeface*>(ctx);
+ 
++#if defined(NTDDI_WIN10_RS3) && NTDDI_VERSION >= NTDDI_WIN10_RS3
+     // IDWriteFontFace5 introduced both Equals and HasVariations
+     SkTScopedComPtr<IDWriteFontFace5> cshFontFace5;
+     SkTScopedComPtr<IDWriteFontFace5> ctxFontFace5;
+@@ -369,6 +370,7 @@ static bool FindByDWriteFont(SkTypeface* cached, void* ctx) {
+     if (cshFontFace5 && ctxFontFace5) {
+         return cshFontFace5->Equals(ctxFontFace5.get());
+     }
++#endif
+ 
+     bool same;
+ 
+diff --git a/src/ports/SkScalerContext_win_dw.cpp b/src/ports/SkScalerContext_win_dw.cpp
+index b2df467b22..385094e506 100644
+--- a/src/ports/SkScalerContext_win_dw.cpp
++++ b/src/ports/SkScalerContext_win_dw.cpp
+@@ -778,6 +778,7 @@ void SkScalerContext_DW::generateFontMetrics(SkFontMetrics* metrics) {
+     metrics->fFlags |= SkFontMetrics::kStrikeoutThicknessIsValid_Flag;
+     metrics->fFlags |= SkFontMetrics::kStrikeoutPositionIsValid_Flag;
+ 
++#if defined(NTDDI_WIN10_RS3) && NTDDI_VERSION >= NTDDI_WIN10_RS3
+     SkTScopedComPtr<IDWriteFontFace5> fontFace5;
+     if (SUCCEEDED(this->getDWriteTypeface()->fDWriteFontFace->QueryInterface(&fontFace5))) {
+         if (fontFace5->HasVariations()) {
+@@ -785,6 +786,7 @@ void SkScalerContext_DW::generateFontMetrics(SkFontMetrics* metrics) {
+             metrics->fFlags |= SkFontMetrics::kBoundsInvalid_Flag;
+         }
+     }
++#endif
+ 
+     if (this->getDWriteTypeface()->fDWriteFontFace1.get()) {
+         DWRITE_FONT_METRICS1 dwfm1;
diff --git a/external/skia/fix-without-gl.patch.1 b/external/skia/fix-without-gl.patch.1
new file mode 100644
index 000000000..8735dc81d
--- /dev/null
+++ b/external/skia/fix-without-gl.patch.1
@@ -0,0 +1,50 @@
+diff --git a/include/gpu/gl/GrGLInterface.h b/include/gpu/gl/GrGLInterface.h
+index e10242b3b7..a1c0058caa 100644
+--- a/include/gpu/gl/GrGLInterface.h
++++ b/include/gpu/gl/GrGLInterface.h
+@@ -83,7 +83,9 @@ public:
+ 
+     GrGLExtensions fExtensions;
+ 
++#ifdef SK_GL
+     bool hasExtension(const char ext[]) const { return fExtensions.has(ext); }
++#endif
+ 
+     /**
+      * The function pointers are in a struct so that we can have a compiler generated assignment
+diff --git a/src/gpu/ganesh/gl/GrGLContext.h b/src/gpu/ganesh/gl/GrGLContext.h
+index d5424ca6cf..5b730fe176 100644
+--- a/src/gpu/ganesh/gl/GrGLContext.h
++++ b/src/gpu/ganesh/gl/GrGLContext.h
+@@ -64,9 +64,11 @@ public:
+     const GrGLCaps* caps() const { return fGLCaps.get(); }
+     GrGLCaps* caps() { return fGLCaps.get(); }
+ 
++#ifdef SK_GL
+     bool hasExtension(const char* ext) const {
+         return fInterface->hasExtension(ext);
+     }
++#endif
+ 
+     const GrGLExtensions& extensions() const { return fInterface->fExtensions; }
+ 
+diff --git a/src/gpu/ganesh/gl/GrGLGpu.h b/src/gpu/ganesh/gl/GrGLGpu.h
+index a3ac1ad25d..ffc18093e6 100644
+--- a/src/gpu/ganesh/gl/GrGLGpu.h
++++ b/src/gpu/ganesh/gl/GrGLGpu.h
+@@ -279,6 +279,7 @@ private:
+     // compatible stencil format, or negative if there is no compatible stencil format.
+     int getCompatibleStencilIndex(GrGLFormat format);
+ 
++#ifdef SK_GL
+     GrBackendFormat getPreferredStencilFormat(const GrBackendFormat& format) override {
+         int idx = this->getCompatibleStencilIndex(format.asGLFormat());
+         if (idx < 0) {
+@@ -287,6 +288,7 @@ private:
+         return GrBackendFormat::MakeGL(GrGLFormatToEnum(this->glCaps().stencilFormats()[idx]),
+                                        GR_GL_TEXTURE_NONE);
+     }
++#endif
+ 
+     void onFBOChanged();
+ 
diff --git a/external/skia/fontconfig-get-typeface.patch.0 b/external/skia/fontconfig-get-typeface.patch.0
new file mode 100644
index 000000000..20c3f5b9c
--- /dev/null
+++ b/external/skia/fontconfig-get-typeface.patch.0
@@ -0,0 +1,40 @@
+diff --git a/include/ports/SkFontMgr_fontconfig.h b/include/ports/SkFontMgr_fontconfig.h
+index 4b2bb2d297..2b82cbfedd 100644
+--- include/ports/SkFontMgr_fontconfig.h
++++ include/ports/SkFontMgr_fontconfig.h
+@@ -19,4 +19,9 @@ class SkFontMgr;
+  */
+ SK_API sk_sp<SkFontMgr> SkFontMgr_New_FontConfig(FcConfig* fc);
+ 
++struct _FcPattern;
++typedef struct _FcPattern FcPattern;
++class SkTypeface;
++SK_API sk_sp<SkTypeface> SkFontMgr_createTypefaceFromFcPattern(const sk_sp<SkFontMgr>& mgr, FcPattern* pattern);
++
+ #endif // #ifndef SkFontMgr_fontconfig_DEFINED
+diff --git a/src/ports/SkFontMgr_fontconfig.cpp b/src/ports/SkFontMgr_fontconfig.cpp
+index c2da39b28f..28483faf02 100644
+--- src/ports/SkFontMgr_fontconfig.cpp
++++ src/ports/SkFontMgr_fontconfig.cpp
+@@ -690,6 +690,7 @@ class SkFontMgr_fontconfig : public SkFontMgr {
+     /** Creates a typeface using a typeface cache.
+      *  @param pattern a complete pattern from FcFontRenderPrepare.
+      */
++public:
+     sk_sp<SkTypeface> createTypefaceFromFcPattern(SkAutoFcPattern pattern) const {
+         if (!pattern) {
+             return nullptr;
+@@ -1043,3 +1044,13 @@ protected:
+ SK_API sk_sp<SkFontMgr> SkFontMgr_New_FontConfig(FcConfig* fc) {
+     return sk_make_sp<SkFontMgr_fontconfig>(fc);
+ }
++
++SK_API sk_sp<SkTypeface> SkFontMgr_createTypefaceFromFcPattern(const sk_sp<SkFontMgr>& mgr, FcPattern* pattern)
++{
++    SkAutoFcPattern p([pattern]() {
++        FCLocker lock;
++        FcPatternReference(pattern);
++        return pattern;
++    }());
++    return static_cast<SkFontMgr_fontconfig*>(mgr.get())->createTypefaceFromFcPattern(std::move(p));
++}
diff --git a/external/skia/inc/pch/precompiled_skia.cxx b/external/skia/inc/pch/precompiled_skia.cxx
new file mode 100644
index 000000000..8892e30fd
--- /dev/null
+++ b/external/skia/inc/pch/precompiled_skia.cxx
@@ -0,0 +1,12 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#include "precompiled_skia.hxx"
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/external/skia/inc/pch/precompiled_skia.hxx b/external/skia/inc/pch/precompiled_skia.hxx
new file mode 100644
index 000000000..e9631b68d
--- /dev/null
+++ b/external/skia/inc/pch/precompiled_skia.hxx
@@ -0,0 +1,618 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+/*
+ This file has been autogenerated by update_pch.sh. It is possible to edit it
+ manually (such as when an include file has been moved/renamed/removed). All such
+ manual changes will be rewritten by the next run of update_pch.sh (which presumably
+ also fixes all possible problems, so it's usually better to use it).
+
+ Generated on 2022-05-20 16:24:18 using:
+ ./bin/update_pch external/skia skia --cutoff=1 --exclude:system --include:module --include:local
+
+ If after updating build fails, use the following command to locate conflicting headers:
+ ./bin/update_pch_bisect ./external/skia/inc/pch/precompiled_skia.hxx "make external/skia.build" --find-conflicts
+*/
+
+#include <sal/config.h>
+#if PCH_LEVEL >= 1
+#include <algorithm>
+#include <array>
+#include <atomic>
+#include <bitset>
+#include <cctype>
+#include <cfloat>
+#include <chrono>
+#include <cinttypes>
+#include <climits>
+#include <cmath>
+#include <cstddef>
+#include <cstdint>
+#include <cstdio>
+#include <cstring>
+#include <ctype.h>
+#include <deque>
+#include <errno.h>
+#include <forward_list>
+#include <functional>
+#include <initializer_list>
+#include <inttypes.h>
+#include <iterator>
+#include <limits.h>
+#include <limits>
+#include <locale>
+#include <map>
+#include <math.h>
+#include <memory>
+#include <new>
+#include <numeric>
+#include <optional>
+#include <png.h>
+#include <queue>
+#include <set>
+#include <sstream>
+#include <stdarg.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <string>
+#include <string_view>
+#include <thread>
+#include <tuple>
+#include <type_traits>
+#include <unordered_map>
+#include <unordered_set>
+#include <utility>
+#include <vector>
+#endif // PCH_LEVEL >= 1
+#if PCH_LEVEL >= 2
+#include <rtl/alloc.h>
+#include <sal/log.hxx>
+#endif // PCH_LEVEL >= 2
+#if PCH_LEVEL >= 3
+#include <include/c/sk_canvas.h>
+#include <include/c/sk_colorspace.h>
+#include <include/c/sk_data.h>
+#include <include/c/sk_image.h>
+#include <include/c/sk_imageinfo.h>
+#include <include/c/sk_maskfilter.h>
+#include <include/c/sk_paint.h>
+#include <include/c/sk_path.h>
+#include <include/c/sk_picture.h>
+#include <include/c/sk_shader.h>
+#include <include/c/sk_surface.h>
+#include <include/codec/SkAndroidCodec.h>
+#include <include/codec/SkCodec.h>
+#include <include/core/SkAlphaType.h>
+#include <include/core/SkAnnotation.h>
+#include <include/core/SkBBHFactory.h>
+#include <include/core/SkBitmap.h>
+#include <include/core/SkBlendMode.h>
+#include <include/core/SkBlender.h>
+#include <include/core/SkBlurTypes.h>
+#include <include/core/SkCanvas.h>
+#include <include/core/SkClipOp.h>
+#include <include/core/SkColor.h>
+#include <include/core/SkColorFilter.h>
+#include <include/core/SkColorPriv.h>
+#include <include/core/SkColorSpace.h>
+#include <include/core/SkColorType.h>
+#include <include/core/SkContourMeasure.h>
+#include <include/core/SkCubicMap.h>
+#include <include/core/SkData.h>
+#include <include/core/SkDataTable.h>
+#include <include/core/SkDeferredDisplayList.h>
+#include <include/core/SkDeferredDisplayListRecorder.h>
+#include <include/core/SkDocument.h>
+#include <include/core/SkDrawable.h>
+#include <include/core/SkExecutor.h>
+#include <include/core/SkFlattenable.h>
+#include <include/core/SkFont.h>
+#include <include/core/SkFontArguments.h>
+#include <include/core/SkFontMetrics.h>
+#include <include/core/SkFontMgr.h>
+#include <include/core/SkFontParameters.h>
+#include <include/core/SkFontStyle.h>
+#include <include/core/SkFontTypes.h>
+#include <include/core/SkGraphics.h>
+#include <include/core/SkICC.h>
+#include <include/core/SkImage.h>
+#include <include/core/SkImageEncoder.h>
+#include <include/core/SkImageFilter.h>
+#include <include/core/SkImageGenerator.h>
+#include <include/core/SkImageInfo.h>
+#include <include/core/SkM44.h>
+#include <include/core/SkMallocPixelRef.h>
+#include <include/core/SkMaskFilter.h>
+#include <include/core/SkMath.h>
+#include <include/core/SkMatrix.h>
+#include <include/core/SkMesh.h>
+#include <include/core/SkOpenTypeSVGDecoder.h>
+#include <include/core/SkOverdrawCanvas.h>
+#include <include/core/SkPaint.h>
+#include <include/core/SkPath.h>
+#include <include/core/SkPathBuilder.h>
+#include <include/core/SkPathEffect.h>
+#include <include/core/SkPathMeasure.h>
+#include <include/core/SkPathTypes.h>
+#include <include/core/SkPicture.h>
+#include <include/core/SkPictureRecorder.h>
+#include <include/core/SkPixelRef.h>
+#include <include/core/SkPixmap.h>
+#include <include/core/SkPoint.h>
+#include <include/core/SkPoint3.h>
+#include <include/core/SkPromiseImageTexture.h>
+#include <include/core/SkRRect.h>
+#include <include/core/SkRSXform.h>
+#include <include/core/SkRasterHandleAllocator.h>
+#include <include/core/SkRect.h>
+#include <include/core/SkRefCnt.h>
+#include <include/core/SkRegion.h>
+#include <include/core/SkSamplingOptions.h>
+#include <include/core/SkScalar.h>
+#include <include/core/SkSerialProcs.h>
+#include <include/core/SkShader.h>
+#include <include/core/SkSize.h>
+#include <include/core/SkSpan.h>
+#include <include/core/SkStream.h>
+#include <include/core/SkString.h>
+#include <include/core/SkStrokeRec.h>
+#include <include/core/SkSurface.h>
+#include <include/core/SkSurfaceCharacterization.h>
+#include <include/core/SkSwizzle.h>
+#include <include/core/SkTextBlob.h>
+#include <include/core/SkTileMode.h>
+#include <include/core/SkTime.h>
+#include <include/core/SkTraceMemoryDump.h>
+#include <include/core/SkTypeface.h>
+#include <include/core/SkTypes.h>
+#include <include/core/SkUnPreMultiply.h>
+#include <include/core/SkVertices.h>
+#include <include/core/SkYUVAInfo.h>
+#include <include/core/SkYUVAPixmaps.h>
+#include <include/effects/Sk1DPathEffect.h>
+#include <include/effects/Sk2DPathEffect.h>
+#include <include/effects/SkBlenders.h>
+#include <include/effects/SkBlurMaskFilter.h>
+#include <include/effects/SkColorMatrix.h>
+#include <include/effects/SkColorMatrixFilter.h>
+#include <include/effects/SkCornerPathEffect.h>
+#include <include/effects/SkDashPathEffect.h>
+#include <include/effects/SkDiscretePathEffect.h>
+#include <include/effects/SkGradientShader.h>
+#include <include/effects/SkHighContrastFilter.h>
+#include <include/effects/SkImageFilters.h>
+#include <include/effects/SkLumaColorFilter.h>
+#include <include/effects/SkOpPathEffect.h>
+#include <include/effects/SkOverdrawColorFilter.h>
+#include <include/effects/SkPerlinNoiseShader.h>
+#include <include/effects/SkRuntimeEffect.h>
+#include <include/effects/SkShaderMaskFilter.h>
+#include <include/effects/SkStrokeAndFillPathEffect.h>
+#include <include/effects/SkTableColorFilter.h>
+#include <include/effects/SkTableMaskFilter.h>
+#include <include/effects/SkTrimPathEffect.h>
+#include <include/encode/SkJpegEncoder.h>
+#include <include/encode/SkPngEncoder.h>
+#include <include/encode/SkWebpEncoder.h>
+#include <include/gpu/GrBackendSurface.h>
+#include <include/gpu/GrContextOptions.h>
+#include <include/gpu/GrContextThreadSafeProxy.h>
+#include <include/gpu/GrDirectContext.h>
+#include <include/gpu/GrRecordingContext.h>
+#include <include/pathops/SkPathOps.h>
+#include <include/ports/SkRemotableFontMgr.h>
+#include <include/private/SkBitmaskEnum.h>
+#include <include/private/SkChecksum.h>
+#include <include/private/SkColorData.h>
+#include <include/private/SkDeque.h>
+#include <include/private/SkEncodedInfo.h>
+#include <include/private/SkFixed.h>
+#include <include/private/SkFloatBits.h>
+#include <include/private/SkFloatingPoint.h>
+#include <include/private/SkHalf.h>
+#include <include/private/SkIDChangeListener.h>
+#include <include/private/SkImageInfoPriv.h>
+#include <include/private/SkMacros.h>
+#include <include/private/SkMalloc.h>
+#include <include/private/SkMutex.h>
+#include <include/private/SkNx.h>
+#include <include/private/SkOnce.h>
+#include <include/private/SkOpts_spi.h>
+#include <include/private/SkPathRef.h>
+#include <include/private/SkSLDefines.h>
+#include <include/private/SkSLLayout.h>
+#include <include/private/SkSLModifiers.h>
+#include <include/private/SkSLProgramElement.h>
+#include <include/private/SkSLProgramKind.h>
+#include <include/private/SkSLSampleUsage.h>
+#include <include/private/SkSLStatement.h>
+#include <include/private/SkSLString.h>
+#include <include/private/SkSLSymbol.h>
+#include <include/private/SkSafe32.h>
+#include <include/private/SkSemaphore.h>
+#include <include/private/SkShadowFlags.h>
+#include <include/private/SkSpinlock.h>
+#include <include/private/SkStringView.h>
+#include <include/private/SkTArray.h>
+#include <include/private/SkTDArray.h>
+#include <include/private/SkTFitsIn.h>
+#include <include/private/SkTHash.h>
+#include <include/private/SkTPin.h>
+#include <include/private/SkTemplates.h>
+#include <include/private/SkThreadAnnotations.h>
+#include <include/private/SkThreadID.h>
+#include <include/private/SkTo.h>
+#include <include/private/SkVx.h>
+#include <include/private/chromium/GrSlug.h>
+#include <include/private/chromium/SkChromeRemoteGlyphCache.h>
+#include <include/private/gpu/ganesh/GrImageContext.h>
+#include <include/private/gpu/ganesh/GrTypesPriv.h>
+#include <include/third_party/skcms/skcms.h>
+#include <include/utils/SkBase64.h>
+#include <include/utils/SkCamera.h>
+#include <include/utils/SkCanvasStateUtils.h>
+#include <include/utils/SkCustomTypeface.h>
+#include <include/utils/SkEventTracer.h>
+#include <include/utils/SkNWayCanvas.h>
+#include <include/utils/SkNoDrawCanvas.h>
+#include <include/utils/SkNullCanvas.h>
+#include <include/utils/SkOrderedFontMgr.h>
+#include <include/utils/SkPaintFilterCanvas.h>
+#include <include/utils/SkParse.h>
+#include <include/utils/SkParsePath.h>
+#include <include/utils/SkRandom.h>
+#include <include/utils/SkShadowUtils.h>
+#include <include/utils/SkTextUtils.h>
+#include <src/codec/SkAndroidCodecAdapter.h>
+#include <src/codec/SkBmpBaseCodec.h>
+#include <src/codec/SkBmpCodec.h>
+#include <src/codec/SkBmpMaskCodec.h>
+#include <src/codec/SkBmpRLECodec.h>
+#include <src/codec/SkBmpStandardCodec.h>
+#include <src/codec/SkCodecImageGenerator.h>
+#include <src/codec/SkCodecPriv.h>
+#include <src/codec/SkColorTable.h>
+#include <src/codec/SkFrameHolder.h>
+#include <src/codec/SkIcoCodec.h>
+#include <src/codec/SkMaskSwizzler.h>
+#include <src/codec/SkMasks.h>
+#include <src/codec/SkPngCodec.h>
+#include <src/codec/SkPngPriv.h>
+#include <src/codec/SkSampledCodec.h>
+#include <src/codec/SkSampler.h>
+#include <src/codec/SkStreamBuffer.h>
+#include <src/codec/SkSwizzler.h>
+#include <src/codec/SkWbmpCodec.h>
+#include <src/core/SkAAClip.h>
+#include <src/core/SkATrace.h>
+#include <src/core/SkAdvancedTypefaceMetrics.h>
+#include <src/core/SkAnalyticEdge.h>
+#include <src/core/SkAnnotationKeys.h>
+#include <src/core/SkAntiRun.h>
+#include <src/core/SkArenaAlloc.h>
+#include <src/core/SkAutoBlitterChoose.h>
+#include <src/core/SkAutoMalloc.h>
+#include <src/core/SkAutoPixmapStorage.h>
+#include <src/core/SkBigPicture.h>
+#include <src/core/SkBitmapCache.h>
+#include <src/core/SkBitmapDevice.h>
+#include <src/core/SkBitmapProcState.h>
+#include <src/core/SkBlendModeBlender.h>
+#include <src/core/SkBlendModePriv.h>
+#include <src/core/SkBlenderBase.h>
+#include <src/core/SkBlitRow.h>
+#include <src/core/SkBlitter.h>
+#include <src/core/SkBlockAllocator.h>
+#include <src/core/SkBlurMask.h>
+#include <src/core/SkBuffer.h>
+#include <src/core/SkCachedData.h>
+#include <src/core/SkCanvasPriv.h>
+#include <src/core/SkClipStack.h>
+#include <src/core/SkClipStackDevice.h>
+#include <src/core/SkColorFilterBase.h>
+#include <src/core/SkColorFilterPriv.h>
+#include <src/core/SkColorFilter_Matrix.h>
+#include <src/core/SkColorSpacePriv.h>
+#include <src/core/SkColorSpaceXformSteps.h>
+#include <src/core/SkCompressedDataUtils.h>
+#include <src/core/SkConvertPixels.h>
+#include <src/core/SkCoreBlitters.h>
+#include <src/core/SkCpu.h>
+#include <src/core/SkCubicClipper.h>
+#include <src/core/SkDebugUtils.h>
+#include <src/core/SkDescriptor.h>
+#include <src/core/SkDevice.h>
+#include <src/core/SkDiscardableMemory.h>
+#include <src/core/SkDistanceFieldGen.h>
+#include <src/core/SkDraw.h>
+#include <src/core/SkDrawProcs.h>
+#include <src/core/SkDrawShadowInfo.h>
+#include <src/core/SkEdge.h>
+#include <src/core/SkEdgeBuilder.h>
+#include <src/core/SkEdgeClipper.h>
+#include <src/core/SkEffectPriv.h>
+#include <src/core/SkEndian.h>
+#include <src/core/SkEnumerate.h>
+#include <src/core/SkFDot6.h>
+#include <src/core/SkFontDescriptor.h>
+#include <src/core/SkFontPriv.h>
+#include <src/core/SkFontStream.h>
+#include <src/core/SkFuzzLogging.h>
+#include <src/core/SkGaussFilter.h>
+#include <src/core/SkGeometry.h>
+#include <src/core/SkGlyph.h>
+#include <src/core/SkGlyphBuffer.h>
+#include <src/core/SkGlyphRun.h>
+#include <src/core/SkGlyphRunPainter.h>
+#include <src/core/SkGpuBlurUtils.h>
+#include <src/core/SkICCPriv.h>
+#include <src/core/SkImageFilterCache.h>
+#include <src/core/SkImageFilterTypes.h>
+#include <src/core/SkImageFilter_Base.h>
+#include <src/core/SkImagePriv.h>
+#include <src/core/SkKeyContext.h>
+#include <src/core/SkKeyHelpers.h>
+#include <src/core/SkLRUCache.h>
+#include <src/core/SkLatticeIter.h>
+#include <src/core/SkLeanWindows.h>
+#include <src/core/SkLineClipper.h>
+#include <src/core/SkLocalMatrixImageFilter.h>
+#include <src/core/SkMD5.h>
+#include <src/core/SkMSAN.h>
+#include <src/core/SkMask.h>
+#include <src/core/SkMaskBlurFilter.h>
+#include <src/core/SkMaskCache.h>
+#include <src/core/SkMaskFilterBase.h>
+#include <src/core/SkMaskGamma.h>
+#include <src/core/SkMathPriv.h>
+#include <src/core/SkMatrixImageFilter.h>
+#include <src/core/SkMatrixInvert.h>
+#include <src/core/SkMatrixPriv.h>
+#include <src/core/SkMatrixProvider.h>
+#include <src/core/SkMatrixUtils.h>
+#include <src/core/SkMeshPriv.h>
+#include <src/core/SkMessageBus.h>
+#include <src/core/SkMiniRecorder.h>
+#include <src/core/SkMipmap.h>
+#include <src/core/SkMipmapAccessor.h>
+#include <src/core/SkMipmapBuilder.h>
+#include <src/core/SkModeColorFilter.h>
+#include <src/core/SkNextID.h>
+#include <src/core/SkOSFile.h>
+#include <src/core/SkOpts.h>
+#include <src/core/SkPaintDefaults.h>
+#include <src/core/SkPaintParamsKey.h>
+#include <src/core/SkPaintPriv.h>
+#include <src/core/SkPathEffectBase.h>
+#include <src/core/SkPathMakers.h>
+#include <src/core/SkPathMeasurePriv.h>
+#include <src/core/SkPathPriv.h>
+#include <src/core/SkPictureCommon.h>
+#include <src/core/SkPictureData.h>
+#include <src/core/SkPictureFlat.h>
+#include <src/core/SkPicturePlayback.h>
+#include <src/core/SkPicturePriv.h>
+#include <src/core/SkPictureRecord.h>
+#include <src/core/SkPipelineData.h>
+#include <src/core/SkPixelRefPriv.h>
+#include <src/core/SkPixmapPriv.h>
+#include <src/core/SkPointPriv.h>
+#include <src/core/SkPtrRecorder.h>
+#include <src/core/SkQuadClipper.h>
+#include <src/core/SkRRectPriv.h>
+#include <src/core/SkRTree.h>
+#include <src/core/SkRasterClip.h>
+#include <src/core/SkRasterPipeline.h>
+#include <src/core/SkReadBuffer.h>
+#include <src/core/SkRecord.h>
+#include <src/core/SkRecordDraw.h>
+#include <src/core/SkRecordOpts.h>
+#include <src/core/SkRecordPattern.h>
+#include <src/core/SkRecordedDrawable.h>
+#include <src/core/SkRecorder.h>
+#include <src/core/SkRecords.h>
+#include <src/core/SkRectPriv.h>
+#include <src/core/SkRegionPriv.h>
+#include <src/core/SkResourceCache.h>
+#include <src/core/SkRuntimeEffectPriv.h>
+#include <src/core/SkSLTypeShared.h>
+#include <src/core/SkSafeMath.h>
+#include <src/core/SkSafeRange.h>
+#include <src/core/SkSamplingPriv.h>
+#include <src/core/SkScaleToSides.h>
+#include <src/core/SkScalerCache.h>
+#include <src/core/SkScalerContext.h>
+#include <src/core/SkScan.h>
+#include <src/core/SkScanPriv.h>
+#include <src/core/SkScopeExit.h>
+#include <src/core/SkShaderCodeDictionary.h>
+#include <src/core/SkSharedMutex.h>
+#include <src/core/SkSpecialImage.h>
+#include <src/core/SkSpecialSurface.h>
+#include <src/core/SkSpriteBlitter.h>
+#include <src/core/SkStreamPriv.h>
+#include <src/core/SkStrikeCache.h>
+#include <src/core/SkStrikeForGPU.h>
+#include <src/core/SkStrikeSpec.h>
+#include <src/core/SkStringUtils.h>
+#include <src/core/SkStroke.h>
+#include <src/core/SkStrokerPriv.h>
+#include <src/core/SkSurfacePriv.h>
+#include <src/core/SkTDPQueue.h>
+#include <src/core/SkTDynamicHash.h>
+#include <src/core/SkTInternalLList.h>
+#include <src/core/SkTLazy.h>
+#include <src/core/SkTSearch.h>
+#include <src/core/SkTSort.h>
+#include <src/core/SkTaskGroup.h>
+#include <src/core/SkTextBlobPriv.h>
+#include <src/core/SkTextBlobTrace.h>
+#include <src/core/SkTextFormatParams.h>
+#include <src/core/SkTraceEvent.h>
+#include <src/core/SkTraceEventCommon.h>
+#include <src/core/SkTypefaceCache.h>
+#include <src/core/SkTypeface_remote.h>
+#include <src/core/SkUniform.h>
+#include <src/core/SkUtils.h>
+#include <src/core/SkVM.h>
+#include <src/core/SkVMBlitter.h>
+#include <src/core/SkValidationUtils.h>
+#include <src/core/SkVertState.h>
+#include <src/core/SkVerticesPriv.h>
+#include <src/core/SkWriteBuffer.h>
+#include <src/core/SkWritePixelsRec.h>
+#include <src/core/SkWriter32.h>
+#include <src/core/SkXfermodeInterpretation.h>
+#include <src/core/SkXfermodePriv.h>
+#include <src/core/SkYUVAInfoLocation.h>
+#include <src/core/SkYUVMath.h>
+#include <src/core/SkYUVPlanesCache.h>
+#include <src/effects/SkDashImpl.h>
+#include <src/effects/SkEmbossMask.h>
+#include <src/effects/SkEmbossMaskFilter.h>
+#include <src/effects/SkOpPE.h>
+#include <src/effects/SkTrimPE.h>
+#include <src/effects/imagefilters/SkCropImageFilter.h>
+#include <src/effects/imagefilters/SkRuntimeImageFilter.h>
+#include <src/gpu/Blend.h>
+#include <src/gpu/KeyBuilder.h>
+#include <src/gpu/ResourceKey.h>
+#include <src/gpu/ganesh/BaseDevice.h>
+#include <src/gpu/ganesh/GrCaps.h>
+#include <src/gpu/ganesh/GrColorInfo.h>
+#include <src/gpu/ganesh/GrColorSpaceXform.h>
+#include <src/gpu/ganesh/GrContextThreadSafeProxyPriv.h>
+#include <src/gpu/ganesh/GrDirectContextPriv.h>
+#include <src/gpu/ganesh/GrDrawOpAtlas.h>
+#include <src/gpu/ganesh/GrFPArgs.h>
+#include <src/gpu/ganesh/GrFragmentProcessor.h>
+#include <src/gpu/ganesh/GrGpuResourcePriv.h>
+#include <src/gpu/ganesh/GrImageContextPriv.h>
+#include <src/gpu/ganesh/GrImageInfo.h>
+#include <src/gpu/ganesh/GrMemoryPool.h>
+#include <src/gpu/ganesh/GrPaint.h>
+#include <src/gpu/ganesh/GrProxyProvider.h>
+#include <src/gpu/ganesh/GrRecordingContextPriv.h>
+#include <src/gpu/ganesh/GrRenderTask.h>
+#include <src/gpu/ganesh/GrResourceProvider.h>
+#include <src/gpu/ganesh/GrSamplerState.h>
+#include <src/gpu/ganesh/GrShaderCaps.h>
+#include <src/gpu/ganesh/GrStyle.h>
+#include <src/gpu/ganesh/GrSurfaceProxyView.h>
+#include <src/gpu/ganesh/GrTexture.h>
+#include <src/gpu/ganesh/GrTextureProxy.h>
+#include <src/gpu/ganesh/GrThreadSafeCache.h>
+#include <src/gpu/ganesh/GrYUVATextureProxies.h>
+#include <src/gpu/ganesh/SkGr.h>
+#include <src/gpu/ganesh/SurfaceFillContext.h>
+#include <src/gpu/ganesh/effects/GrBicubicEffect.h>
+#include <src/gpu/ganesh/effects/GrBlendFragmentProcessor.h>
+#include <src/gpu/ganesh/effects/GrCustomXfermode.h>
+#include <src/gpu/ganesh/effects/GrMatrixConvolutionEffect.h>
+#include <src/gpu/ganesh/effects/GrMatrixEffect.h>
+#include <src/gpu/ganesh/effects/GrPorterDuffXferProcessor.h>
+#include <src/gpu/ganesh/effects/GrSkSLFP.h>
+#include <src/gpu/ganesh/effects/GrTextureEffect.h>
+#include <src/gpu/ganesh/effects/GrYUVtoRGBEffect.h>
+#include <src/gpu/ganesh/geometry/GrPathUtils.h>
+#include <src/gpu/ganesh/geometry/GrStyledShape.h>
+#include <src/gpu/ganesh/glsl/GrGLSLFragmentShaderBuilder.h>
+#include <src/gpu/ganesh/glsl/GrGLSLProgramDataManager.h>
+#include <src/gpu/ganesh/glsl/GrGLSLUniformHandler.h>
+#include <src/gpu/ganesh/gradients/GrGradientShader.h>
+#include <src/gpu/ganesh/text/GrSDFMaskFilter.h>
+#include <src/gpu/ganesh/text/GrSDFTControl.h>
+#include <src/gpu/ganesh/text/GrTextBlob.h>
+#include <src/gpu/ganesh/text/GrTextBlobRedrawCoordinator.h>
+#include <src/gpu/ganesh/v1/SurfaceDrawContext_v1.h>
+#include <src/image/SkImage_Base.h>
+#include <src/image/SkImage_Gpu.h>
+#include <src/image/SkImage_Lazy.h>
+#include <src/image/SkReadPixelsRec.h>
+#include <src/image/SkRescaleAndReadPixels.h>
+#include <src/image/SkSurface_Base.h>
+#include <src/images/SkImageEncoderPriv.h>
+#include <src/lazy/SkDiscardableMemoryPool.h>
+#include <src/pathops/SkAddIntersections.h>
+#include <src/pathops/SkIntersectionHelper.h>
+#include <src/pathops/SkIntersections.h>
+#include <src/pathops/SkLineParameters.h>
+#include <src/pathops/SkOpAngle.h>
+#include <src/pathops/SkOpCoincidence.h>
+#include <src/pathops/SkOpContour.h>
+#include <src/pathops/SkOpEdgeBuilder.h>
+#include <src/pathops/SkOpSegment.h>
+#include <src/pathops/SkOpSpan.h>
+#include <src/pathops/SkPathOpsBounds.h>
+#include <src/pathops/SkPathOpsCommon.h>
+#include <src/pathops/SkPathOpsConic.h>
+#include <src/pathops/SkPathOpsCubic.h>
+#include <src/pathops/SkPathOpsCurve.h>
+#include <src/pathops/SkPathOpsDebug.h>
+#include <src/pathops/SkPathOpsLine.h>
+#include <src/pathops/SkPathOpsPoint.h>
+#include <src/pathops/SkPathOpsQuad.h>
+#include <src/pathops/SkPathOpsRect.h>
+#include <src/pathops/SkPathOpsTSect.h>
+#include <src/pathops/SkPathOpsTypes.h>
+#include <src/pathops/SkPathWriter.h>
+#include <src/pathops/SkReduceOrder.h>
+#include <src/sfnt/SkOTTableTypes.h>
+#include <src/sfnt/SkOTTable_OS_2.h>
+#include <src/sfnt/SkOTTable_head.h>
+#include <src/sfnt/SkOTTable_name.h>
+#include <src/sfnt/SkOTUtils.h>
+#include <src/shaders/SkBitmapProcShader.h>
+#include <src/shaders/SkColorFilterShader.h>
+#include <src/shaders/SkColorShader.h>
+#include <src/shaders/SkComposeShader.h>
+#include <src/shaders/SkEmptyShader.h>
+#include <src/shaders/SkImageShader.h>
+#include <src/shaders/SkLocalMatrixShader.h>
+#include <src/shaders/SkPictureShader.h>
+#include <src/shaders/SkShaderBase.h>
+#include <src/shaders/SkTransformShader.h>
+#include <src/shaders/gradients/Sk4fGradientBase.h>
+#include <src/shaders/gradients/Sk4fLinearGradient.h>
+#include <src/shaders/gradients/SkGradientShaderPriv.h>
+#include <src/shaders/gradients/SkLinearGradient.h>
+#include <src/shaders/gradients/SkRadialGradient.h>
+#include <src/shaders/gradients/SkSweepGradient.h>
+#include <src/shaders/gradients/SkTwoPointConicalGradient.h>
+#include <src/text/gpu/StrikeCache.h>
+#include <src/utils/SkBlitterTrace.h>
+#include <src/utils/SkCanvasStack.h>
+#include <src/utils/SkCharToGlyphCache.h>
+#include <src/utils/SkClipStackUtils.h>
+#include <src/utils/SkDashPathPriv.h>
+#include <src/utils/SkFloatToDecimal.h>
+#include <src/utils/SkJSON.h>
+#include <src/utils/SkJSONWriter.h>
+#include <src/utils/SkMatrix22.h>
+#include <src/utils/SkMultiPictureDocument.h>
+#include <src/utils/SkMultiPictureDocumentPriv.h>
+#include <src/utils/SkOSPath.h>
+#include <src/utils/SkPatchUtils.h>
+#include <src/utils/SkPolyUtils.h>
+#include <src/utils/SkShaderUtils.h>
+#include <src/utils/SkShadowTessellator.h>
+#include <src/utils/SkShaperJSONWriter.h>
+#include <src/utils/SkTestCanvas.h>
+#include <src/utils/SkUTF.h>
+#include <src/utils/SkVMVisualizer.h>
+#include <tools/sk_app/WindowContext.h>
+#endif // PCH_LEVEL >= 3
+#if PCH_LEVEL >= 4
+#include <skia_compiler.hxx>
+#include <skia_opts.hxx>
+#endif // PCH_LEVEL >= 4
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/external/skia/inc/skia_compiler.hxx b/external/skia/inc/skia_compiler.hxx
new file mode 100644
index 000000000..a26ec29bd
--- /dev/null
+++ b/external/skia/inc/skia_compiler.hxx
@@ -0,0 +1,13 @@
+/*
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#ifndef SKIA_COMPILER_H
+#define SKIA_COMPILER_H
+
+#include <include/core/SkTypes.h>
+
+SK_API const char* skia_compiler_name();
+
+#endif
diff --git a/external/skia/inc/skia_opts.hxx b/external/skia/inc/skia_opts.hxx
new file mode 100644
index 000000000..33f82f9d2
--- /dev/null
+++ b/external/skia/inc/skia_opts.hxx
@@ -0,0 +1,28 @@
+/*
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#ifndef SKIA_OPTS_H
+#define SKIA_OPTS_H
+
+#include <include/core/SkTypes.h>
+
+SK_API void SkConvertRGBToRGBA(uint32_t* dest, const uint8_t* src, int count);
+
+SK_API void SkConvertGrayToRGBA(uint32_t* dest, const uint8_t* src, int count);
+
+SK_API void SkConvertRGBAToRGB(uint8_t* dest, const uint32_t* src, int count);
+
+SK_API void SkConvertRGBAToR(uint8_t* dest, const uint32_t* src, int count);
+
+namespace SkLoOpts
+{
+SK_API void Init();
+
+typedef void (*Swizzle_u8_8888)(uint8_t*, const uint32_t*, int);
+extern Swizzle_u8_8888 RGB1_to_RGB,     // i.e. remove an (opaque) alpha
+                       RGB1_to_R;       // i.e. copy one channel to the result
+}
+
+#endif
diff --git a/external/skia/make-api-visible.patch.1 b/external/skia/make-api-visible.patch.1
new file mode 100644
index 000000000..a90bd9943
--- /dev/null
+++ b/external/skia/make-api-visible.patch.1
@@ -0,0 +1,82 @@
+diff --git a/tools/sk_app/WindowContext.h b/tools/sk_app/WindowContext.h
+index 79f6d72f35..428d198159 100644
+--- a/tools/sk_app/WindowContext.h
++++ b/tools/sk_app/WindowContext.h
+@@ -22,7 +22,7 @@ class Context;
+ 
+ namespace sk_app {
+ 
+-class WindowContext {
++class SK_API WindowContext {
+ public:
+     WindowContext(const DisplayParams&);
+ 
+diff --git a/tools/sk_app/mac/WindowContextFactory_mac.h b/tools/sk_app/mac/WindowContextFactory_mac.h
+index 3e136a8f57..affb89e43e 100644
+--- a/tools/sk_app/mac/WindowContextFactory_mac.h
++++ b/tools/sk_app/mac/WindowContextFactory_mac.h
+@@ -52,7 +52,7 @@ std::unique_ptr<WindowContext> MakeDawnMTLForMac(const MacWindowInfo&, const Dis
+ #endif
+ 
+ #ifdef SK_METAL
+-std::unique_ptr<WindowContext> MakeMetalForMac(const MacWindowInfo&, const DisplayParams&);
++SK_API std::unique_ptr<WindowContext> MakeMetalForMac(const MacWindowInfo&, const DisplayParams&);
+ #ifdef SK_GRAPHITE_ENABLED
+ std::unique_ptr<WindowContext> MakeGraphiteMetalForMac(const MacWindowInfo&, const DisplayParams&);
+ #endif
+diff --git a/tools/sk_app/unix/WindowContextFactory_unix.h b/tools/sk_app/unix/WindowContextFactory_unix.h
+index 11bd2d2ac2..09c92dc417 100644
+--- a/tools/sk_app/unix/WindowContextFactory_unix.h
++++ b/tools/sk_app/unix/WindowContextFactory_unix.h
+@@ -36,15 +36,15 @@ struct XlibWindowInfo {
+     int          fHeight;
+ };
+ 
+-std::unique_ptr<WindowContext> MakeVulkanForXlib(const XlibWindowInfo&, const DisplayParams&);
++SK_API std::unique_ptr<WindowContext> MakeVulkanForXlib(const XlibWindowInfo&, const DisplayParams&);
+ 
+-std::unique_ptr<WindowContext> MakeGLForXlib(const XlibWindowInfo&, const DisplayParams&);
++SK_API std::unique_ptr<WindowContext> MakeGLForXlib(const XlibWindowInfo&, const DisplayParams&);
+ 
+ #ifdef SK_DAWN
+-std::unique_ptr<WindowContext> MakeDawnVulkanForXlib(const XlibWindowInfo&, const DisplayParams&);
++SK_API std::unique_ptr<WindowContext> MakeDawnVulkanForXlib(const XlibWindowInfo&, const DisplayParams&);
+ #endif
+ 
+-std::unique_ptr<WindowContext> MakeRasterForXlib(const XlibWindowInfo&, const DisplayParams&);
++SK_API std::unique_ptr<WindowContext> MakeRasterForXlib(const XlibWindowInfo&, const DisplayParams&);
+ 
+ }  // namespace window_context_factory
+ 
+diff --git a/tools/sk_app/win/WindowContextFactory_win.h b/tools/sk_app/win/WindowContextFactory_win.h
+index c05a4f0acf..fc27cd2afb 100644
+--- a/tools/sk_app/win/WindowContextFactory_win.h
++++ b/tools/sk_app/win/WindowContextFactory_win.h
+@@ -20,21 +20,21 @@ struct DisplayParams;
+ 
+ namespace window_context_factory {
+ 
+-std::unique_ptr<WindowContext> MakeVulkanForWin(HWND, const DisplayParams&);
++SK_API std::unique_ptr<WindowContext> MakeVulkanForWin(HWND, const DisplayParams&);
+ 
+-std::unique_ptr<WindowContext> MakeGLForWin(HWND, const DisplayParams&);
++SK_API std::unique_ptr<WindowContext> MakeGLForWin(HWND, const DisplayParams&);
+ 
+-std::unique_ptr<WindowContext> MakeANGLEForWin(HWND, const DisplayParams&);
++SK_API std::unique_ptr<WindowContext> MakeANGLEForWin(HWND, const DisplayParams&);
+ 
+ #ifdef SK_DIRECT3D
+-std::unique_ptr<WindowContext> MakeD3D12ForWin(HWND, const DisplayParams&);
++SK_API std::unique_ptr<WindowContext> MakeD3D12ForWin(HWND, const DisplayParams&);
+ #endif
+ 
+ #ifdef SK_DAWN
+-std::unique_ptr<WindowContext> MakeDawnD3D12ForWin(HWND, const DisplayParams&);
++SK_API std::unique_ptr<WindowContext> MakeDawnD3D12ForWin(HWND, const DisplayParams&);
+ #endif
+ 
+-std::unique_ptr<WindowContext> MakeRasterForWin(HWND, const DisplayParams&);
++SK_API std::unique_ptr<WindowContext> MakeRasterForWin(HWND, const DisplayParams&);
+ 
+ }  // namespace window_context_factory
+ 
diff --git a/external/skia/missing-include.patch.0 b/external/skia/missing-include.patch.0
new file mode 100644
index 000000000..5d1d0609b
--- /dev/null
+++ b/external/skia/missing-include.patch.0
@@ -0,0 +1,20 @@
+--- src/core/SkShaderCodeDictionary.h
++++ src/core/SkShaderCodeDictionary.h
+@@ -9,6 +9,7 @@
+ #define SkShaderCodeDictionary_DEFINED
+ 
+ #include <array>
++#include <string>
+ #include <unordered_map>
+ #include <vector>
+ #include "include/core/SkSpan.h"
+--- third_party/vulkanmemoryallocator/include/vk_mem_alloc.h
++++ third_party/vulkanmemoryallocator/include/vk_mem_alloc.h
+@@ -2570,6 +2570,7 @@
+ #include <cstring>
+ #include <utility>
+ #include <type_traits>
++#include <stdio.h>
+ 
+ #ifdef _MSC_VER
+     #include <intrin.h> // For functions like __popcnt, _BitScanForward etc.
diff --git a/external/skia/no-trace-resources-on-exit.patch.1 b/external/skia/no-trace-resources-on-exit.patch.1
new file mode 100644
index 000000000..4d52a37dc
--- /dev/null
+++ b/external/skia/no-trace-resources-on-exit.patch.1
@@ -0,0 +1,13 @@
+diff --git a/src/gpu/vk/GrVkResource.h b/src/gpu/vk/GrVkResource.h
+index 7b9949ba1b..4e8fb48c7c 100644
+--- a/src/gpu/ganesh/GrManagedResource.h
++++ b/src/gpu/ganesh/GrManagedResource.h
+@@ -17,7 +17,7 @@ class GrVkGpu;
+ 
+ // uncomment to enable tracing of resource refs
+ #ifdef SK_DEBUG
+-#define SK_TRACE_MANAGED_RESOURCES
++//#define SK_TRACE_MANAGED_RESOURCES
+ #endif
+ 
+ /** \class GrManagedResource
diff --git a/external/skia/share-grcontext.patch.1 b/external/skia/share-grcontext.patch.1
new file mode 100644
index 000000000..2a957c284
--- /dev/null
+++ b/external/skia/share-grcontext.patch.1
@@ -0,0 +1,872 @@
+diff --git a/tools/sk_app/MetalWindowContext.h b/tools/sk_app/MetalWindowContext.h
+index 106d366415..08dc19b5c8 100644
+--- a/tools/sk_app/MetalWindowContext.h
++++ b/tools/sk_app/MetalWindowContext.h
+@@ -14,13 +14,18 @@
+ 
+ #include "tools/sk_app/WindowContext.h"
+ 
++#ifdef __OBJC__
+ #import <Metal/Metal.h>
+ #import <QuartzCore/CAMetalLayer.h>
++#endif
+ 
+ namespace sk_app {
+ 
++#ifdef __OBJC__
+ class MetalWindowContext : public WindowContext {
+ public:
++    static GrDirectContext* getSharedGrDirectContext() { return fGlobalShared ? fGlobalShared->fContext.get() : nullptr; }
++
+     sk_sp<SkSurface> getBackbufferSurface() override;
+ 
+     bool isValid() override { return fValid; }
+@@ -46,16 +51,34 @@ protected:
+     void destroyContext();
+     virtual void onDestroyContext() = 0;
+ 
++    static void checkDestroyShared();
++
+     bool                        fValid;
++
++    // We need to use just one GrDirectContext, so share all the relevant data.
++    struct Shared : public SkRefCnt
++    {
+     sk_cfp<id<MTLDevice>>       fDevice;
+     sk_cfp<id<MTLCommandQueue>> fQueue;
+-    CAMetalLayer*               fMetalLayer;
+-    GrMTLHandle                 fDrawableHandle;
+ #if GR_METAL_SDK_VERSION >= 230
+     // wrapping this in sk_cfp throws up an availability warning, so we'll track lifetime manually
+     id<MTLBinaryArchive>        fPipelineArchive SK_API_AVAILABLE(macos(11.0), ios(14.0));
+ #endif
++
++    sk_sp<GrDirectContext> fContext;
++    };
++
++    sk_sp<Shared> fShared;
++
++    static sk_sp<Shared> fGlobalShared;
++
++    CAMetalLayer*               fMetalLayer;
++    GrMTLHandle                 fDrawableHandle;
+ };
++#endif // __OBJC__
++
++// Access function when header is used from C++ code that wouldn't handle ObjC++ headers.
++extern "C" SK_API GrDirectContext* getMetalSharedGrDirectContext();
+ 
+ }   // namespace sk_app
+ 
+diff --git a/tools/sk_app/MetalWindowContext.mm b/tools/sk_app/MetalWindowContext.mm
+index d972e321a6..9f576944b7 100644
+--- a/tools/sk_app/MetalWindowContext.mm
++++ b/tools/sk_app/MetalWindowContext.mm
+@@ -37,24 +37,30 @@ NSURL* MetalWindowContext::CacheURL() {
+ }
+ 
+ void MetalWindowContext::initializeContext() {
++    fShared = fGlobalShared;
++    if( !fShared )
++    {
++    // TODO do we need a mutex?
++
++    fGlobalShared = sk_make_sp<Shared>();
++    Shared* d = fGlobalShared.get(); // shorter variable name
++
+     SkASSERT(!fContext);
+ 
+-    fDevice.reset(MTLCreateSystemDefaultDevice());
+-    fQueue.reset([*fDevice newCommandQueue]);
++    d->fDevice.reset(MTLCreateSystemDefaultDevice());
++    d->fQueue.reset([*d->fDevice newCommandQueue]);
+ 
+     if (fDisplayParams.fMSAASampleCount > 1) {
+         if (@available(macOS 10.11, iOS 9.0, *)) {
+-            if (![*fDevice supportsTextureSampleCount:fDisplayParams.fMSAASampleCount]) {
++            if (![*d->fDevice supportsTextureSampleCount:fDisplayParams.fMSAASampleCount]) {
++                fGlobalShared.reset();
+                 return;
+             }
+         } else {
++            fGlobalShared.reset();
+             return;
+         }
+     }
+-    fSampleCount = fDisplayParams.fMSAASampleCount;
+-    fStencilBits = 8;
+-
+-    fValid = this->onInitializeContext();
+ 
+ #if GR_METAL_SDK_VERSION >= 230
+     if (fDisplayParams.fEnableBinaryArchive) {
+@@ -62,11 +68,11 @@ void MetalWindowContext::initializeContext() {
+             sk_cfp<MTLBinaryArchiveDescriptor*> desc([MTLBinaryArchiveDescriptor new]);
+             (*desc).url = CacheURL(); // try to load
+             NSError* error;
+-            fPipelineArchive = [*fDevice newBinaryArchiveWithDescriptor:*desc error:&error];
+-            if (!fPipelineArchive) {
++            d->fPipelineArchive = [*d->fDevice newBinaryArchiveWithDescriptor:*desc error:&error];
++            if (!d->fPipelineArchive) {
+                 (*desc).url = nil; // create new
+-                fPipelineArchive = [*fDevice newBinaryArchiveWithDescriptor:*desc error:&error];
+-                if (!fPipelineArchive) {
++                d->fPipelineArchive = [*d->fDevice newBinaryArchiveWithDescriptor:*desc error:&error];
++                if (!d->fPipelineArchive) {
+                     SkDebugf("Error creating MTLBinaryArchive:\n%s\n",
+                              error.debugDescription.UTF8String);
+                 }
+@@ -74,46 +80,75 @@ void MetalWindowContext::initializeContext() {
+         }
+     } else {
+         if (@available(macOS 11.0, iOS 14.0, *)) {
+-            fPipelineArchive = nil;
++            d->fPipelineArchive = nil;
+         }
+     }
+ #endif
+ 
+     GrMtlBackendContext backendContext = {};
+-    backendContext.fDevice.retain((GrMTLHandle)fDevice.get());
+-    backendContext.fQueue.retain((GrMTLHandle)fQueue.get());
++    backendContext.fDevice.retain((GrMTLHandle)d->fDevice.get());
++    backendContext.fQueue.retain((GrMTLHandle)d->fQueue.get());
+ #if GR_METAL_SDK_VERSION >= 230
+     if (@available(macOS 11.0, iOS 14.0, *)) {
+-        backendContext.fBinaryArchive.retain((__bridge GrMTLHandle)fPipelineArchive);
++        backendContext.fBinaryArchive.retain((__bridge GrMTLHandle)d->fPipelineArchive);
+     }
+ #endif
+-    fContext = GrDirectContext::MakeMetal(backendContext, fDisplayParams.fGrContextOptions);
+-    if (!fContext && fDisplayParams.fMSAASampleCount > 1) {
++    d->fContext = GrDirectContext::MakeMetal(backendContext, fDisplayParams.fGrContextOptions);
++    if (!d->fContext && fDisplayParams.fMSAASampleCount > 1) {
+         fDisplayParams.fMSAASampleCount /= 2;
++        fGlobalShared.reset();
+         this->initializeContext();
+         return;
+     }
++
++    fShared = fGlobalShared;
++    } // if( !fShared )
++
++    fContext = fShared->fContext;
++
++    fSampleCount = fDisplayParams.fMSAASampleCount;
++    fStencilBits = 8;
++
++    fValid = this->onInitializeContext();
+ }
+ 
+ void MetalWindowContext::destroyContext() {
+-    if (fContext) {
+-        // in case we have outstanding refs to this (lua?)
+-        fContext->abandonContext();
+-        fContext.reset();
+-    }
+-
+     this->onDestroyContext();
+ 
+     fMetalLayer = nil;
+     fValid = false;
+ 
++    fContext.reset();
++    fShared.reset();
++
++    checkDestroyShared();
++}
++
++void MetalWindowContext::checkDestroyShared()
++{
++    if(!fGlobalShared || !fGlobalShared->unique()) // TODO mutex?
++        return;
++#ifndef SK_TRACE_VK_RESOURCES
++    if(!fGlobalShared->fContext->unique())
++        return;
++#endif
++    SkASSERT(fGlobalShared->fContext->unique());
++
++    if (fGlobalShared->fContext) {
++        // in case we have outstanding refs to this (lua?)
++        fGlobalShared->fContext->abandonContext();
++        fGlobalShared->fContext.reset();
++    }
++
+ #if GR_METAL_SDK_VERSION >= 230
+     if (@available(macOS 11.0, iOS 14.0, *)) {
+-        [fPipelineArchive release];
++        [fGlobalShared->fPipelineArchive release];
+     }
+ #endif
+-    fQueue.reset();
+-    fDevice.reset();
++    fGlobalShared->fQueue.reset();
++    fGlobalShared->fDevice.reset();
++
++    fGlobalShared.reset();
+ }
+ 
+ sk_sp<SkSurface> MetalWindowContext::getBackbufferSurface() {
+@@ -154,7 +189,7 @@ sk_sp<SkSurface> MetalWindowContext::getBackbufferSurface() {
+ void MetalWindowContext::swapBuffers() {
+     id<CAMetalDrawable> currentDrawable = (id<CAMetalDrawable>)fDrawableHandle;
+ 
+-    id<MTLCommandBuffer> commandBuffer([*fQueue commandBuffer]);
++    id<MTLCommandBuffer> commandBuffer([*fShared->fQueue commandBuffer]);
+     commandBuffer.label = @"Present";
+ 
+     [commandBuffer presentDrawable:currentDrawable];
+@@ -175,9 +210,9 @@ void MetalWindowContext::activate(bool isActive) {
+     if (!isActive) {
+ #if GR_METAL_SDK_VERSION >= 230
+         if (@available(macOS 11.0, iOS 14.0, *)) {
+-            if (fPipelineArchive) {
++            if (fShared->fPipelineArchive) {
+                 NSError* error;
+-                [fPipelineArchive serializeToURL:CacheURL() error:&error];
++                [fShared->fPipelineArchive serializeToURL:CacheURL() error:&error];
+                 if (error) {
+                     SkDebugf("Error storing MTLBinaryArchive:\n%s\n",
+                              error.debugDescription.UTF8String);
+@@ -188,4 +223,11 @@ void MetalWindowContext::activate(bool isActive) {
+     }
+ }
+ 
++SK_API sk_sp<MetalWindowContext::Shared> MetalWindowContext::fGlobalShared;
++
++GrDirectContext* getMetalSharedGrDirectContext()
++{
++    return MetalWindowContext::getSharedGrDirectContext();
++}
++
+ }   //namespace sk_app
+diff --git a/tools/sk_app/VulkanWindowContext.cpp b/tools/sk_app/VulkanWindowContext.cpp
+index c9db528ca4..634034da5a 100644
+--- a/tools/sk_app/VulkanWindowContext.cpp
++++ b/tools/sk_app/VulkanWindowContext.cpp
+@@ -25,9 +25,13 @@
+ #endif
+ 
+ #define GET_PROC(F) f ## F = \
+-    (PFN_vk ## F) backendContext.fGetProc("vk" #F, fInstance, VK_NULL_HANDLE)
++    (PFN_vk ## F) fGlobalShared->backendContext.fGetProc("vk" #F, fShared->fInstance, VK_NULL_HANDLE)
+ #define GET_DEV_PROC(F) f ## F = \
+-    (PFN_vk ## F) backendContext.fGetProc("vk" #F, VK_NULL_HANDLE, fDevice)
++    (PFN_vk ## F) fGlobalShared->backendContext.fGetProc("vk" #F, VK_NULL_HANDLE, fShared->fDevice)
++#define GET_PROC_GLOBAL(F) fGlobalShared->f ## F = \
++    (PFN_vk ## F) fGlobalShared->backendContext.fGetProc("vk" #F, fGlobalShared->fInstance, VK_NULL_HANDLE)
++#define GET_DEV_PROC_GLOBAL(F) fGlobalShared->f ## F = \
++    (PFN_vk ## F) fGlobalShared->backendContext.fGetProc("vk" #F, VK_NULL_HANDLE, fGlobalShared->fDevice)
+ 
+ namespace sk_app {
+ 
+@@ -49,31 +53,39 @@ VulkanWindowContext::VulkanWindowContext(const DisplayParams& params,
+ }
+ 
+ void VulkanWindowContext::initializeContext() {
++    fShared = fGlobalShared;
++    if( !fShared )
++    {
++    // TODO do we need a mutex?
++
++    fGlobalShared = sk_make_sp<Shared>();
++    Shared* d = fGlobalShared.get(); // shorter variable name
++
+     SkASSERT(!fContext);
+     // any config code here (particularly for msaa)?
+ 
+     PFN_vkGetInstanceProcAddr getInstanceProc = fGetInstanceProcAddr;
+-    GrVkBackendContext backendContext;
++    GrVkBackendContext& backendContext = fGlobalShared->backendContext;
+     GrVkExtensions extensions;
+-    VkPhysicalDeviceFeatures2 features;
+-    if (!sk_gpu_test::CreateVkBackendContext(getInstanceProc, &backendContext, &extensions,
+-                                             &features, &fDebugCallback, &fPresentQueueIndex,
+-                                             fCanPresentFn)) {
+-        sk_gpu_test::FreeVulkanFeaturesStructs(&features);
++    if (!sk_gpu_test::CreateVkBackendContext(getInstanceProc, &backendContext, &extensions, &d->features,
++                                             &d->fDebugCallback, &d->fPresentQueueIndex, fCanPresentFn)) {
++        sk_gpu_test::FreeVulkanFeaturesStructs(&d->features);
++        fGlobalShared.reset();
+         return;
+     }
+ 
+     if (!extensions.hasExtension(VK_KHR_SURFACE_EXTENSION_NAME, 25) ||
+         !extensions.hasExtension(VK_KHR_SWAPCHAIN_EXTENSION_NAME, 68)) {
+-        sk_gpu_test::FreeVulkanFeaturesStructs(&features);
++        sk_gpu_test::FreeVulkanFeaturesStructs(&d->features);
++        fGlobalShared.reset();
+         return;
+     }
+ 
+-    fInstance = backendContext.fInstance;
+-    fPhysicalDevice = backendContext.fPhysicalDevice;
+-    fDevice = backendContext.fDevice;
+-    fGraphicsQueueIndex = backendContext.fGraphicsQueueIndex;
+-    fGraphicsQueue = backendContext.fQueue;
++    d->fInstance = backendContext.fInstance;
++    d->fPhysicalDevice = backendContext.fPhysicalDevice;
++    d->fDevice = backendContext.fDevice;
++    d->fGraphicsQueueIndex = backendContext.fGraphicsQueueIndex;
++    d->fGraphicsQueue = backendContext.fQueue;
+ 
+     PFN_vkGetPhysicalDeviceProperties localGetPhysicalDeviceProperties =
+             reinterpret_cast<PFN_vkGetPhysicalDeviceProperties>(
+@@ -81,21 +93,30 @@ void VulkanWindowContext::initializeContext() {
+                                             backendContext.fInstance,
+                                             VK_NULL_HANDLE));
+     if (!localGetPhysicalDeviceProperties) {
+-        sk_gpu_test::FreeVulkanFeaturesStructs(&features);
++        sk_gpu_test::FreeVulkanFeaturesStructs(&d->features);
++        fGlobalShared.reset();
+         return;
+     }
+-    VkPhysicalDeviceProperties physDeviceProperties;
+-    localGetPhysicalDeviceProperties(backendContext.fPhysicalDevice, &physDeviceProperties);
+-    uint32_t physDevVersion = physDeviceProperties.apiVersion;
++    localGetPhysicalDeviceProperties(backendContext.fPhysicalDevice, &d->physDeviceProperties);
++    uint32_t physDevVersion = d->physDeviceProperties.apiVersion;
+ 
+-    fInterface.reset(new GrVkInterface(backendContext.fGetProc, fInstance, fDevice,
++    d->fInterface.reset(new GrVkInterface(backendContext.fGetProc, d->fInstance, d->fDevice,
+                                        backendContext.fInstanceVersion, physDevVersion,
+                                        &extensions));
+ 
+-    GET_PROC(DestroyInstance);
+-    if (fDebugCallback != VK_NULL_HANDLE) {
+-        GET_PROC(DestroyDebugReportCallbackEXT);
++    d->fContext = GrDirectContext::MakeVulkan(backendContext, fDisplayParams.fGrContextOptions);
++
++    GET_PROC_GLOBAL(DestroyInstance);
++    GET_DEV_PROC_GLOBAL(DestroyDevice);
++    if (fGlobalShared->fDebugCallback != VK_NULL_HANDLE) {
++        GET_PROC_GLOBAL(DestroyDebugReportCallbackEXT);
+     }
++
++    fShared = fGlobalShared;
++    } // if( !fShared )
++
++    fContext = fShared->fContext;
++
+     GET_PROC(DestroySurfaceKHR);
+     GET_PROC(GetPhysicalDeviceSurfaceSupportKHR);
+     GET_PROC(GetPhysicalDeviceSurfaceCapabilitiesKHR);
+@@ -103,7 +124,6 @@ void VulkanWindowContext::initializeContext() {
+     GET_PROC(GetPhysicalDeviceSurfacePresentModesKHR);
+     GET_DEV_PROC(DeviceWaitIdle);
+     GET_DEV_PROC(QueueWaitIdle);
+-    GET_DEV_PROC(DestroyDevice);
+     GET_DEV_PROC(CreateSwapchainKHR);
+     GET_DEV_PROC(DestroySwapchainKHR);
+     GET_DEV_PROC(GetSwapchainImagesKHR);
+@@ -111,46 +131,44 @@ void VulkanWindowContext::initializeContext() {
+     GET_DEV_PROC(QueuePresentKHR);
+     GET_DEV_PROC(GetDeviceQueue);
+ 
+-    fContext = GrDirectContext::MakeVulkan(backendContext, fDisplayParams.fGrContextOptions);
++    // No actual window, used just to create the shared GrContext.
++    if(fCreateVkSurfaceFn == nullptr)
++        return;
+ 
+-    fSurface = fCreateVkSurfaceFn(fInstance);
++    fSurface = fCreateVkSurfaceFn(fShared->fInstance);
+     if (VK_NULL_HANDLE == fSurface) {
+         this->destroyContext();
+-        sk_gpu_test::FreeVulkanFeaturesStructs(&features);
+         return;
+     }
+ 
++    // create presentQueue
++    fGetDeviceQueue(fShared->fDevice, fShared->fPresentQueueIndex, 0, &fPresentQueue);
++
+     VkBool32 supported;
+-    VkResult res = fGetPhysicalDeviceSurfaceSupportKHR(fPhysicalDevice, fPresentQueueIndex,
++    VkResult res = fGetPhysicalDeviceSurfaceSupportKHR(fShared->fPhysicalDevice, fShared->fPresentQueueIndex,
+                                                        fSurface, &supported);
+     if (VK_SUCCESS != res) {
+         this->destroyContext();
+-        sk_gpu_test::FreeVulkanFeaturesStructs(&features);
+         return;
+     }
+ 
+     if (!this->createSwapchain(-1, -1, fDisplayParams)) {
+         this->destroyContext();
+-        sk_gpu_test::FreeVulkanFeaturesStructs(&features);
+         return;
+     }
+-
+-    // create presentQueue
+-    fGetDeviceQueue(fDevice, fPresentQueueIndex, 0, &fPresentQueue);
+-    sk_gpu_test::FreeVulkanFeaturesStructs(&features);
+ }
+ 
+ bool VulkanWindowContext::createSwapchain(int width, int height,
+                                           const DisplayParams& params) {
+     // check for capabilities
+     VkSurfaceCapabilitiesKHR caps;
+-    VkResult res = fGetPhysicalDeviceSurfaceCapabilitiesKHR(fPhysicalDevice, fSurface, &caps);
++    VkResult res = fGetPhysicalDeviceSurfaceCapabilitiesKHR(fShared->fPhysicalDevice, fSurface, &caps);
+     if (VK_SUCCESS != res) {
+         return false;
+     }
+ 
+     uint32_t surfaceFormatCount;
+-    res = fGetPhysicalDeviceSurfaceFormatsKHR(fPhysicalDevice, fSurface, &surfaceFormatCount,
++    res = fGetPhysicalDeviceSurfaceFormatsKHR(fShared->fPhysicalDevice, fSurface, &surfaceFormatCount,
+                                               nullptr);
+     if (VK_SUCCESS != res) {
+         return false;
+@@ -158,14 +176,14 @@ bool VulkanWindowContext::createSwapchain(int width, int height,
+ 
+     SkAutoMalloc surfaceFormatAlloc(surfaceFormatCount * sizeof(VkSurfaceFormatKHR));
+     VkSurfaceFormatKHR* surfaceFormats = (VkSurfaceFormatKHR*)surfaceFormatAlloc.get();
+-    res = fGetPhysicalDeviceSurfaceFormatsKHR(fPhysicalDevice, fSurface, &surfaceFormatCount,
++    res = fGetPhysicalDeviceSurfaceFormatsKHR(fShared->fPhysicalDevice, fSurface, &surfaceFormatCount,
+                                               surfaceFormats);
+     if (VK_SUCCESS != res) {
+         return false;
+     }
+ 
+     uint32_t presentModeCount;
+-    res = fGetPhysicalDeviceSurfacePresentModesKHR(fPhysicalDevice, fSurface, &presentModeCount,
++    res = fGetPhysicalDeviceSurfacePresentModesKHR(fShared->fPhysicalDevice, fSurface, &presentModeCount,
+                                                    nullptr);
+     if (VK_SUCCESS != res) {
+         return false;
+@@ -173,7 +191,7 @@ bool VulkanWindowContext::createSwapchain(int width, int height,
+ 
+     SkAutoMalloc presentModeAlloc(presentModeCount * sizeof(VkPresentModeKHR));
+     VkPresentModeKHR* presentModes = (VkPresentModeKHR*)presentModeAlloc.get();
+-    res = fGetPhysicalDeviceSurfacePresentModesKHR(fPhysicalDevice, fSurface, &presentModeCount,
++    res = fGetPhysicalDeviceSurfacePresentModesKHR(fShared->fPhysicalDevice, fSurface, &presentModeCount,
+                                                    presentModes);
+     if (VK_SUCCESS != res) {
+         return false;
+@@ -286,8 +304,8 @@ bool VulkanWindowContext::createSwapchain(int width, int height,
+     swapchainCreateInfo.imageArrayLayers = 1;
+     swapchainCreateInfo.imageUsage = usageFlags;
+ 
+-    uint32_t queueFamilies[] = { fGraphicsQueueIndex, fPresentQueueIndex };
+-    if (fGraphicsQueueIndex != fPresentQueueIndex) {
++    uint32_t queueFamilies[] = { fShared->fGraphicsQueueIndex, fShared->fPresentQueueIndex };
++    if (fShared->fGraphicsQueueIndex != fShared->fPresentQueueIndex) {
+         swapchainCreateInfo.imageSharingMode = VK_SHARING_MODE_CONCURRENT;
+         swapchainCreateInfo.queueFamilyIndexCount = 2;
+         swapchainCreateInfo.pQueueFamilyIndices = queueFamilies;
+@@ -303,27 +321,27 @@ bool VulkanWindowContext::createSwapchain(int width, int height,
+     swapchainCreateInfo.clipped = true;
+     swapchainCreateInfo.oldSwapchain = fSwapchain;
+ 
+-    res = fCreateSwapchainKHR(fDevice, &swapchainCreateInfo, nullptr, &fSwapchain);
++    res = fCreateSwapchainKHR(fShared->fDevice, &swapchainCreateInfo, nullptr, &fSwapchain);
+     if (VK_SUCCESS != res) {
+         return false;
+     }
+ 
+     // destroy the old swapchain
+     if (swapchainCreateInfo.oldSwapchain != VK_NULL_HANDLE) {
+-        fDeviceWaitIdle(fDevice);
++        fDeviceWaitIdle(fShared->fDevice);
+ 
+         this->destroyBuffers();
+ 
+-        fDestroySwapchainKHR(fDevice, swapchainCreateInfo.oldSwapchain, nullptr);
++        fDestroySwapchainKHR(fShared->fDevice, swapchainCreateInfo.oldSwapchain, nullptr);
+     }
+ 
+     if (!this->createBuffers(swapchainCreateInfo.imageFormat, usageFlags, colorType,
+                              swapchainCreateInfo.imageSharingMode)) {
+-        fDeviceWaitIdle(fDevice);
++        fDeviceWaitIdle(fShared->fDevice);
+ 
+         this->destroyBuffers();
+ 
+-        fDestroySwapchainKHR(fDevice, swapchainCreateInfo.oldSwapchain, nullptr);
++        fDestroySwapchainKHR(fShared->fDevice, swapchainCreateInfo.oldSwapchain, nullptr);
+     }
+ 
+     return true;
+@@ -332,10 +350,10 @@ bool VulkanWindowContext::createSwapchain(int width, int height,
+ bool VulkanWindowContext::createBuffers(VkFormat format, VkImageUsageFlags usageFlags,
+                                         SkColorType colorType,
+                                         VkSharingMode sharingMode) {
+-    fGetSwapchainImagesKHR(fDevice, fSwapchain, &fImageCount, nullptr);
++    fGetSwapchainImagesKHR(fShared->fDevice, fSwapchain, &fImageCount, nullptr);
+     SkASSERT(fImageCount);
+     fImages = new VkImage[fImageCount];
+-    fGetSwapchainImagesKHR(fDevice, fSwapchain, &fImageCount, fImages);
++    fGetSwapchainImagesKHR(fShared->fDevice, fSwapchain, &fImageCount, fImages);
+ 
+     // set up initial image layouts and create surfaces
+     fImageLayouts = new VkImageLayout[fImageCount];
+@@ -351,7 +369,7 @@ bool VulkanWindowContext::createBuffers(VkFormat format, VkImageUsageFlags usage
+         info.fFormat = format;
+         info.fImageUsageFlags = usageFlags;
+         info.fLevelCount = 1;
+-        info.fCurrentQueueFamily = fPresentQueueIndex;
++        info.fCurrentQueueFamily = fShared->fPresentQueueIndex;
+         info.fSharingMode = sharingMode;
+ 
+         if (usageFlags & VK_IMAGE_USAGE_SAMPLED_BIT) {
+@@ -387,8 +405,8 @@ bool VulkanWindowContext::createBuffers(VkFormat format, VkImageUsageFlags usage
+     fBackbuffers = new BackbufferInfo[fImageCount + 1];
+     for (uint32_t i = 0; i < fImageCount + 1; ++i) {
+         fBackbuffers[i].fImageIndex = -1;
+-        SkDEBUGCODE(VkResult result = )GR_VK_CALL(fInterface,
+-                CreateSemaphore(fDevice, &semaphoreInfo, nullptr,
++        SkDEBUGCODE(VkResult result = )GR_VK_CALL(fShared->fInterface,
++                CreateSemaphore(fShared->fDevice, &semaphoreInfo, nullptr,
+                                 &fBackbuffers[i].fRenderSemaphore));
+         SkASSERT(result == VK_SUCCESS);
+     }
+@@ -401,8 +419,8 @@ void VulkanWindowContext::destroyBuffers() {
+     if (fBackbuffers) {
+         for (uint32_t i = 0; i < fImageCount + 1; ++i) {
+             fBackbuffers[i].fImageIndex = -1;
+-            GR_VK_CALL(fInterface,
+-                       DestroySemaphore(fDevice,
++            GR_VK_CALL(fShared->fInterface,
++                       DestroySemaphore(fShared->fDevice,
+                                         fBackbuffers[i].fRenderSemaphore,
+                                         nullptr));
+         }
+@@ -427,42 +445,59 @@ VulkanWindowContext::~VulkanWindowContext() {
+ void VulkanWindowContext::destroyContext() {
+     if (this->isValid()) {
+         fQueueWaitIdle(fPresentQueue);
+-        fDeviceWaitIdle(fDevice);
++        fDeviceWaitIdle(fShared->fDevice);
+ 
+         this->destroyBuffers();
+ 
+         if (VK_NULL_HANDLE != fSwapchain) {
+-            fDestroySwapchainKHR(fDevice, fSwapchain, nullptr);
++            fDestroySwapchainKHR(fShared->fDevice, fSwapchain, nullptr);
+             fSwapchain = VK_NULL_HANDLE;
+         }
+ 
+         if (VK_NULL_HANDLE != fSurface) {
+-            fDestroySurfaceKHR(fInstance, fSurface, nullptr);
++            fDestroySurfaceKHR(fShared->fInstance, fSurface, nullptr);
+             fSurface = VK_NULL_HANDLE;
+         }
+     }
+ 
+-    SkASSERT(fContext->unique());
+     fContext.reset();
+-    fInterface.reset();
++    fShared.reset();
++
++    checkDestroyShared();
++}
++
++void VulkanWindowContext::checkDestroyShared()
++{
++    if(!fGlobalShared || !fGlobalShared->unique()) // TODO mutex?
++        return;
++#ifndef SK_TRACE_VK_RESOURCES
++    if(!fGlobalShared->fContext->unique())
++        return;
++#endif
++    SkASSERT(fGlobalShared->fContext->unique());
++    fGlobalShared->fContext.reset();
++    fGlobalShared->fInterface.reset();
+ 
+-    if (VK_NULL_HANDLE != fDevice) {
+-        fDestroyDevice(fDevice, nullptr);
+-        fDevice = VK_NULL_HANDLE;
++    if (VK_NULL_HANDLE != fGlobalShared->fDevice) {
++        fGlobalShared->fDestroyDevice(fGlobalShared->fDevice, nullptr);
++        fGlobalShared->fDevice = VK_NULL_HANDLE;
+     }
+ 
+ #ifdef SK_ENABLE_VK_LAYERS
+-    if (fDebugCallback != VK_NULL_HANDLE) {
+-        fDestroyDebugReportCallbackEXT(fInstance, fDebugCallback, nullptr);
++    if (fGlobalShared->fDebugCallback != VK_NULL_HANDLE) {
++        fGlobalShared->fDestroyDebugReportCallbackEXT(fGlobalShared->fInstance, fDebugCallback, nullptr);
+     }
+ #endif
+ 
+-    fPhysicalDevice = VK_NULL_HANDLE;
++    fGlobalShared->fPhysicalDevice = VK_NULL_HANDLE;
+ 
+-    if (VK_NULL_HANDLE != fInstance) {
+-        fDestroyInstance(fInstance, nullptr);
+-        fInstance = VK_NULL_HANDLE;
++    if (VK_NULL_HANDLE != fGlobalShared->fInstance) {
++        fGlobalShared->fDestroyInstance(fGlobalShared->fInstance, nullptr);
++        fGlobalShared->fInstance = VK_NULL_HANDLE;
+     }
++
++    sk_gpu_test::FreeVulkanFeaturesStructs(&fGlobalShared->features);
++    fGlobalShared.reset();
+ }
+ 
+ VulkanWindowContext::BackbufferInfo* VulkanWindowContext::getAvailableBackbuffer() {
+@@ -488,35 +523,35 @@ sk_sp<SkSurface> VulkanWindowContext::getBackbufferSurface() {
+     semaphoreInfo.pNext = nullptr;
+     semaphoreInfo.flags = 0;
+     VkSemaphore semaphore;
+-    SkDEBUGCODE(VkResult result = )GR_VK_CALL(fInterface, CreateSemaphore(fDevice, &semaphoreInfo,
++    SkDEBUGCODE(VkResult result = )GR_VK_CALL(fShared->fInterface, CreateSemaphore(fShared->fDevice, &semaphoreInfo,
+                                                                           nullptr, &semaphore));
+     SkASSERT(result == VK_SUCCESS);
+ 
+     // acquire the image
+-    VkResult res = fAcquireNextImageKHR(fDevice, fSwapchain, UINT64_MAX,
++    VkResult res = fAcquireNextImageKHR(fShared->fDevice, fSwapchain, UINT64_MAX,
+                                         semaphore, VK_NULL_HANDLE,
+                                         &backbuffer->fImageIndex);
+     if (VK_ERROR_SURFACE_LOST_KHR == res) {
+         // need to figure out how to create a new vkSurface without the platformData*
+         // maybe use attach somehow? but need a Window
+-        GR_VK_CALL(fInterface, DestroySemaphore(fDevice, semaphore, nullptr));
++        GR_VK_CALL(fShared->fInterface, DestroySemaphore(fShared->fDevice, semaphore, nullptr));
+         return nullptr;
+     }
+     if (VK_ERROR_OUT_OF_DATE_KHR == res) {
+         // tear swapchain down and try again
+         if (!this->createSwapchain(-1, -1, fDisplayParams)) {
+-            GR_VK_CALL(fInterface, DestroySemaphore(fDevice, semaphore, nullptr));
++            GR_VK_CALL(fShared->fInterface, DestroySemaphore(fShared->fDevice, semaphore, nullptr));
+             return nullptr;
+         }
+         backbuffer = this->getAvailableBackbuffer();
+ 
+         // acquire the image
+-        res = fAcquireNextImageKHR(fDevice, fSwapchain, UINT64_MAX,
++        res = fAcquireNextImageKHR(fShared->fDevice, fSwapchain, UINT64_MAX,
+                                    semaphore, VK_NULL_HANDLE,
+                                    &backbuffer->fImageIndex);
+ 
+         if (VK_SUCCESS != res) {
+-            GR_VK_CALL(fInterface, DestroySemaphore(fDevice, semaphore, nullptr));
++            GR_VK_CALL(fShared->fInterface, DestroySemaphore(fShared->fDevice, semaphore, nullptr));
+             return nullptr;
+         }
+     }
+@@ -542,7 +577,7 @@ void VulkanWindowContext::swapBuffers() {
+     GrFlushInfo info;
+     info.fNumSemaphores = 1;
+     info.fSignalSemaphores = &beSemaphore;
+-    GrBackendSurfaceMutableState presentState(VK_IMAGE_LAYOUT_PRESENT_SRC_KHR, fPresentQueueIndex);
++    GrBackendSurfaceMutableState presentState(VK_IMAGE_LAYOUT_PRESENT_SRC_KHR, fShared->fPresentQueueIndex);
+     surface->flush(info, &presentState);
+     surface->recordingContext()->asDirectContext()->submit();
+ 
+@@ -562,4 +597,6 @@ void VulkanWindowContext::swapBuffers() {
+     fQueuePresentKHR(fPresentQueue, &presentInfo);
+ }
+ 
++SK_API sk_sp<VulkanWindowContext::Shared> VulkanWindowContext::fGlobalShared;
++
+ }   //namespace sk_app
+diff --git a/tools/sk_app/VulkanWindowContext.h b/tools/sk_app/VulkanWindowContext.h
+index 7e1fdd9af5..946bca7522 100644
+--- a/tools/sk_app/VulkanWindowContext.h
++++ b/tools/sk_app/VulkanWindowContext.h
+@@ -19,18 +19,22 @@
+ #include "tools/gpu/vk/VkTestUtils.h"
+ #include "tools/sk_app/WindowContext.h"
+ 
++#include <cassert>
++
+ class GrRenderTarget;
+ 
+ namespace sk_app {
+ 
+-class VulkanWindowContext : public WindowContext {
++class SK_API VulkanWindowContext : public WindowContext {
+ public:
+     ~VulkanWindowContext() override;
+ 
++    static GrDirectContext* getSharedGrDirectContext() { return fGlobalShared ? fGlobalShared->fContext.get() : nullptr; }
++
+     sk_sp<SkSurface> getBackbufferSurface() override;
+     void swapBuffers() override;
+ 
+-    bool isValid() override { return fDevice != VK_NULL_HANDLE; }
++    bool isValid() override { return fSurface != VK_NULL_HANDLE; }
+ 
+     void resize(int w, int h) override {
+         this->createSwapchain(w, h, fDisplayParams);
+@@ -50,9 +54,15 @@ public:
+     VulkanWindowContext(const DisplayParams&, CreateVkSurfaceFn, CanPresentFn,
+                         PFN_vkGetInstanceProcAddr);
+ 
++    static const VkPhysicalDeviceProperties& getPhysDeviceProperties() {
++        assert( fGlobalShared != nullptr );
++        return fGlobalShared->physDeviceProperties;
++    }
++
+ private:
+     void initializeContext();
+     void destroyContext();
++    static void checkDestroyShared();
+ 
+     struct BackbufferInfo {
+         uint32_t        fImageIndex;          // image this is associated with
+@@ -64,11 +74,6 @@ private:
+     bool createBuffers(VkFormat format, VkImageUsageFlags, SkColorType colorType, VkSharingMode);
+     void destroyBuffers();
+ 
+-    VkInstance fInstance = VK_NULL_HANDLE;
+-    VkPhysicalDevice fPhysicalDevice = VK_NULL_HANDLE;
+-    VkDevice fDevice = VK_NULL_HANDLE;
+-    VkDebugReportCallbackEXT fDebugCallback = VK_NULL_HANDLE;
+-
+     // Create functions
+     CreateVkSurfaceFn fCreateVkSurfaceFn;
+     CanPresentFn      fCanPresentFn;
+@@ -88,20 +93,46 @@ private:
+     PFN_vkAcquireNextImageKHR fAcquireNextImageKHR = nullptr;
+     PFN_vkQueuePresentKHR fQueuePresentKHR = nullptr;
+ 
+-    PFN_vkDestroyInstance fDestroyInstance = nullptr;
+     PFN_vkDeviceWaitIdle fDeviceWaitIdle = nullptr;
+-    PFN_vkDestroyDebugReportCallbackEXT fDestroyDebugReportCallbackEXT = nullptr;
+     PFN_vkQueueWaitIdle fQueueWaitIdle = nullptr;
+-    PFN_vkDestroyDevice fDestroyDevice = nullptr;
+     PFN_vkGetDeviceQueue fGetDeviceQueue = nullptr;
+ 
++    // We need to use just one GrDirectContext, so share all the relevant data.
++    struct Shared : public SkRefCnt
++    {
++    PFN_vkDestroyInstance fDestroyInstance = nullptr;
++    PFN_vkDestroyDevice fDestroyDevice = nullptr;
++    PFN_vkDestroyDebugReportCallbackEXT fDestroyDebugReportCallbackEXT = nullptr;
++
++    VkInstance fInstance = VK_NULL_HANDLE;
++    VkPhysicalDevice fPhysicalDevice = VK_NULL_HANDLE;
++    VkDevice fDevice = VK_NULL_HANDLE;
++    VkDebugReportCallbackEXT fDebugCallback = VK_NULL_HANDLE;
++
+     sk_sp<const GrVkInterface> fInterface;
+ 
+-    VkSurfaceKHR      fSurface;
+-    VkSwapchainKHR    fSwapchain;
++    // Original code had this as a function-local variable, but that seems wrong.
++    // It should exist as long as the context exists.
++    VkPhysicalDeviceFeatures2 features;
++
++    // Store this to make it accessible.
++    VkPhysicalDeviceProperties physDeviceProperties;
++
++    GrVkBackendContext backendContext;
++
+     uint32_t          fGraphicsQueueIndex;
+     VkQueue           fGraphicsQueue;
+     uint32_t          fPresentQueueIndex;
++
++    sk_sp<GrDirectContext> fContext;
++    };
++
++    sk_sp<Shared> fShared;
++
++    static sk_sp<Shared> fGlobalShared;
++
++    VkSurfaceKHR      fSurface;
++    VkSwapchainKHR    fSwapchain;
+     VkQueue           fPresentQueue;
+ 
+     uint32_t               fImageCount;
+diff --git a/tools/sk_app/WindowContext.h b/tools/sk_app/WindowContext.h
+index 65ab8b9aa4..2d222385a3 100644
+--- a/tools/sk_app/WindowContext.h
++++ b/tools/sk_app/WindowContext.h
+@@ -10,9 +10,9 @@
+ #include "include/core/SkRefCnt.h"
+ #include "include/core/SkSurfaceProps.h"
+ #include "include/gpu/GrTypes.h"
++#include "include/gpu/GrDirectContext.h"
+ #include "tools/sk_app/DisplayParams.h"
+ 
+-class GrDirectContext;
+ class SkSurface;
+ #ifdef SK_GRAPHITE_ENABLED
+ namespace skgpu::graphite {
+diff --git a/tools/sk_app/mac/MetalWindowContext_mac.mm b/tools/sk_app/mac/MetalWindowContext_mac.mm
+index 5bea8578fa..f7df061af0 100644
+--- a/tools/sk_app/mac/MetalWindowContext_mac.mm
++++ b/tools/sk_app/mac/MetalWindowContext_mac.mm
+@@ -49,10 +49,14 @@ MetalWindowContext_mac::~MetalWindowContext_mac() {
+ }
+ 
+ bool MetalWindowContext_mac::onInitializeContext() {
++    // Allow creating just the shared context, without an associated window.
++    if(fMainView == nil)
++        return true;
++
+     SkASSERT(nil != fMainView);
+ 
+     fMetalLayer = [CAMetalLayer layer];
+-    fMetalLayer.device = fDevice.get();
++    fMetalLayer.device = fShared->fDevice.get();
+     fMetalLayer.pixelFormat = MTLPixelFormatBGRA8Unorm;
+ 
+     // resize ignores the passed values and uses the fMainView directly.
+diff --git a/tools/sk_app/unix/VulkanWindowContext_unix.cpp b/tools/sk_app/unix/VulkanWindowContext_unix.cpp
+index 2b31fedc19..0c05fbfc92 100644
+--- a/tools/sk_app/unix/VulkanWindowContext_unix.cpp
++++ b/tools/sk_app/unix/VulkanWindowContext_unix.cpp
+@@ -30,7 +30,7 @@ std::unique_ptr<WindowContext> MakeVulkanForXlib(const XlibWindowInfo& info,
+         return nullptr;
+     }
+ 
+-    auto createVkSurface = [&info, instProc](VkInstance instance) -> VkSurfaceKHR {
++    VulkanWindowContext::CreateVkSurfaceFn createVkSurface = [&info, instProc](VkInstance instance) -> VkSurfaceKHR {
+         static PFN_vkCreateXcbSurfaceKHR createXcbSurfaceKHR = nullptr;
+         if (!createXcbSurfaceKHR) {
+             createXcbSurfaceKHR =
+@@ -54,6 +54,9 @@ std::unique_ptr<WindowContext> MakeVulkanForXlib(const XlibWindowInfo& info,
+ 
+         return surface;
+     };
++    // Allow creating just the shared context, without an associated window.
++    if(info.fWindow == None)
++        createVkSurface = nullptr;
+ 
+     auto canPresent = [&info, instProc](VkInstance instance, VkPhysicalDevice physDev,
+                               uint32_t queueFamilyIndex) {
+@@ -76,7 +79,7 @@ std::unique_ptr<WindowContext> MakeVulkanForXlib(const XlibWindowInfo& info,
+     };
+     std::unique_ptr<WindowContext> ctx(
+             new VulkanWindowContext(displayParams, createVkSurface, canPresent, instProc));
+-    if (!ctx->isValid()) {
++    if (!ctx->isValid() && createVkSurface != nullptr) {
+         return nullptr;
+     }
+     return ctx;
+diff --git a/tools/sk_app/win/VulkanWindowContext_win.cpp b/tools/sk_app/win/VulkanWindowContext_win.cpp
+index 976c42556e..c8f6b162bf 100644
+--- a/tools/sk_app/win/VulkanWindowContext_win.cpp
++++ b/tools/sk_app/win/VulkanWindowContext_win.cpp
+@@ -29,7 +29,7 @@ std::unique_ptr<WindowContext> MakeVulkanForWin(HWND hwnd, const DisplayParams&
+         return nullptr;
+     }
+ 
+-    auto createVkSurface = [hwnd, instProc] (VkInstance instance) -> VkSurfaceKHR {
++    VulkanWindowContext::CreateVkSurfaceFn createVkSurface = [hwnd, instProc] (VkInstance instance) -> VkSurfaceKHR {
+         static PFN_vkCreateWin32SurfaceKHR createWin32SurfaceKHR = nullptr;
+         if (!createWin32SurfaceKHR) {
+             createWin32SurfaceKHR = (PFN_vkCreateWin32SurfaceKHR)
+@@ -53,6 +53,9 @@ std::unique_ptr<WindowContext> MakeVulkanForWin(HWND hwnd, const DisplayParams&
+ 
+         return surface;
+     };
++    // Allow creating just the shared context, without an associated window.
++    if(hwnd == nullptr)
++        createVkSurface = nullptr;
+ 
+     auto canPresent = [instProc] (VkInstance instance, VkPhysicalDevice physDev,
+                                   uint32_t queueFamilyIndex) {
+@@ -70,7 +73,7 @@ std::unique_ptr<WindowContext> MakeVulkanForWin(HWND hwnd, const DisplayParams&
+ 
+     std::unique_ptr<WindowContext> ctx(
+             new VulkanWindowContext(params, createVkSurface, canPresent, instProc));
+-    if (!ctx->isValid()) {
++    if (!ctx->isValid() && createVkSurface != nullptr) {
+         return nullptr;
+     }
+     return ctx;
diff --git a/external/skia/skia_sk_cpu_sse_level_0_by_default.patch.1 b/external/skia/skia_sk_cpu_sse_level_0_by_default.patch.1
new file mode 100644
index 000000000..f2259a318
--- /dev/null
+++ b/external/skia/skia_sk_cpu_sse_level_0_by_default.patch.1
@@ -0,0 +1,15 @@
+diff -ur skia.org/include/core/SkTypes.h skia/include/core/SkTypes.h
+--- skia.org/include/core/SkTypes.h	2021-01-10 12:37:19.016176437 +0100
++++ skia/include/core/SkTypes.h	2021-01-10 12:43:29.155312067 +0100
+@@ -153,6 +153,11 @@
+     #endif
+ #endif
+ 
++// So let's initialize SK_CPU_SSE_LEVEL to 0 by default
++#ifndef SK_CPU_SSE_LEVEL
++    #define SK_CPU_SSE_LEVEL 0
++#endif
++
+ // ARM defines
+ #if defined(__arm__) && (!defined(__APPLE__) || !TARGET_IPHONE_SIMULATOR)
+     #define SK_CPU_ARM32
diff --git a/external/skia/source/SkMemory_malloc.cxx b/external/skia/source/SkMemory_malloc.cxx
new file mode 100644
index 000000000..9e2da3c20
--- /dev/null
+++ b/external/skia/source/SkMemory_malloc.cxx
@@ -0,0 +1,68 @@
+/*
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include "include/core/SkTypes.h"
+#include "include/private/SkMalloc.h"
+
+#include <sal/log.hxx>
+#include <rtl/alloc.h>
+
+// Based on SkMemory_malloc.cpp :
+
+static inline void sk_out_of_memory(size_t size)
+{
+    SAL_WARN("skia", "sk_out_of_memory (asked for " << size << " bytes)");
+    abort();
+}
+
+static inline void* throw_on_failure(size_t size, void* p)
+{
+    if (size > 0 && p == nullptr)
+    {
+        // If we've got a nullptr here, the only reason we should have failed is running out of RAM.
+        sk_out_of_memory(size);
+    }
+    return p;
+}
+
+void sk_abort_no_print()
+{
+    SAL_WARN("skia", "sk_abort_no_print");
+    abort();
+}
+
+void sk_out_of_memory(void)
+{
+    SAL_WARN("skia", "sk_out_of_memory");
+    abort();
+}
+
+void* sk_realloc_throw(void* addr, size_t size)
+{
+    return throw_on_failure(size, rtl_reallocateMemory(addr, size));
+}
+
+void sk_free(void* p) { rtl_freeMemory(p); }
+
+void* sk_malloc_flags(size_t size, unsigned flags)
+{
+    void* p;
+    if (flags & SK_MALLOC_ZERO_INITIALIZE)
+    {
+        p = rtl_allocateZeroMemory(size);
+    }
+    else
+    {
+        p = rtl_allocateMemory(size);
+    }
+    if (flags & SK_MALLOC_THROW)
+    {
+        return throw_on_failure(size, p);
+    }
+    else
+    {
+        return p;
+    }
+}
diff --git a/external/skia/source/skia_compiler.cxx b/external/skia/source/skia_compiler.cxx
new file mode 100644
index 000000000..6339a4a4f
--- /dev/null
+++ b/external/skia/source/skia_compiler.cxx
@@ -0,0 +1,20 @@
+/*
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include <skia_compiler.hxx>
+
+// Get the type of compiler that Skia is compiled with.
+const char* skia_compiler_name()
+{
+#if defined __clang__
+    return "Clang";
+#elif defined __GNUC__
+    return "GCC";
+#elif defined _MSC_VER
+    return "MSVC";
+#else
+    return "?";
+#endif
+}
diff --git a/external/skia/source/skia_opts.cxx b/external/skia/source/skia_opts.cxx
new file mode 100644
index 000000000..be728d600
--- /dev/null
+++ b/external/skia/source/skia_opts.cxx
@@ -0,0 +1,77 @@
+/*
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include <skia_opts.hxx>
+
+#include "include/private/SkOnce.h"
+
+#if defined __GNUC__
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wshadow"
+#endif
+#include "src/core/SkCpu.h"
+#include "src/core/SkOpts.h"
+#if defined __GNUC__
+#pragma GCC diagnostic pop
+#endif
+
+void SkConvertRGBToRGBA(uint32_t* dest, const uint8_t* src, int count)
+{
+    SkOpts::RGB_to_RGB1(dest, src, count);
+}
+
+void SkConvertGrayToRGBA(uint32_t* dest, const uint8_t* src, int count)
+{
+    SkOpts::gray_to_RGB1(dest, src, count);
+}
+
+void SkConvertRGBAToRGB(uint8_t* dest, const uint32_t* src, int count)
+{
+    SkLoOpts::RGB1_to_RGB(dest, src, count);
+}
+
+void SkConvertRGBAToR(uint8_t* dest, const uint32_t* src, int count)
+{
+    SkLoOpts::RGB1_to_R(dest, src, count);
+}
+
+// The rest is mostly based on Skia's SkOpts.cpp, reduced to only SSSE3 so far.
+
+#if SK_CPU_SSE_LEVEL >= SK_CPU_SSE_LEVEL_SSSE3
+    #define SK_OPTS_NS ssse3
+#else
+    #define SK_OPTS_NS portable
+#endif
+
+#include "skia_opts_internal.hxx"
+
+namespace SkLoOpts {
+    // Define default function pointer values here...
+    // If our global compile options are set high enough, these defaults might even be
+    // CPU-specialized, e.g. a typical x86-64 machine might start with SSE2 defaults.
+    // They'll still get a chance to be replaced with even better ones, e.g. using SSE4.1.
+#define DEFINE_DEFAULT(name) decltype(name) name = SK_OPTS_NS::name
+    DEFINE_DEFAULT(RGB1_to_RGB);
+    DEFINE_DEFAULT(RGB1_to_R);
+#undef DEFINE_DEFAULT
+
+    // Each Init_foo() is defined in its own file.
+    void Init_ssse3();
+
+    static void init() {
+#if !defined(SK_BUILD_NO_OPTS)
+    #if defined(SK_CPU_X86)
+        #if SK_CPU_SSE_LEVEL < SK_CPU_SSE_LEVEL_SSSE3
+            if (SkCpu::Supports(SkCpu::SSSE3)) { Init_ssse3(); }
+        #endif
+    #endif
+#endif
+    }
+
+    void Init() {
+        static SkOnce once;
+        once(init);
+    }
+}  // namespace SkLoOpts
diff --git a/external/skia/source/skia_opts_internal.hxx b/external/skia/source/skia_opts_internal.hxx
new file mode 100644
index 000000000..0ca6a0435
--- /dev/null
+++ b/external/skia/source/skia_opts_internal.hxx
@@ -0,0 +1,81 @@
+/*
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#ifndef SKIA_OPTS_INTERNAL_H
+#define SKIA_OPTS_INTERNAL_H
+
+#if SK_CPU_SSE_LEVEL >= SK_CPU_SSE_LEVEL_SSSE3
+    #include <immintrin.h>
+#endif
+
+namespace SK_OPTS_NS {
+
+static void RGB1_to_RGB_portable(uint8_t dst[], const uint32_t* src, int count) {
+    for (int i = 0; i < count; i++) {
+        dst[0] = src[i] >> 0;
+        dst[1] = src[i] >> 8;
+        dst[2] = src[i] >> 16;
+        dst += 3;
+    }
+}
+static void RGB1_to_R_portable(uint8_t dst[], const uint32_t* src, int count) {
+    for (int i = 0; i < count; i++) {
+        dst[i] = src[i] & 0xFF;
+    }
+}
+
+#if SK_CPU_SSE_LEVEL >= SK_CPU_SSE_LEVEL_SSSE3
+inline void RGB1_to_RGB(uint8_t dst[], const uint32_t* src, int count) {
+        const uint8_t X = 0xFF; // Used a placeholder.  The value of X is irrelevant.
+        __m128i pack = _mm_setr_epi8(0,1,2, 4,5,6, 8,9,10, 12,13,14, X,X,X,X);
+
+// Storing 4 pixels should store 12 bytes, but here it stores 16, so test count >= 6
+// in order to not overrun the output buffer.
+        while (count >= 6) {
+            __m128i rgba = _mm_loadu_si128((const __m128i*) src);
+
+            __m128i rgb = _mm_shuffle_epi8(rgba, pack);
+
+            // Store 4 pixels.
+            _mm_storeu_si128((__m128i*) dst, rgb);
+
+            src += 4;
+            dst += 4*3;
+            count -= 4;
+        }
+        RGB1_to_RGB_portable(dst, src, count);
+}
+
+inline void RGB1_to_R(uint8_t dst[], const uint32_t* src, int count) {
+        const uint8_t X = 0xFF; // Used a placeholder.  The value of X is irrelevant.
+        __m128i pack = _mm_setr_epi8(0,4,8,12, X,X,X,X,X,X,X,X,X,X,X,X);
+
+        while (count >= 4) {
+            __m128i rgba = _mm_loadu_si128((const __m128i*) src);
+
+            __m128i rgb = _mm_shuffle_epi8(rgba, pack);
+
+            // Store 4 pixels.
+            *((uint32_t*)dst) = _mm_cvtsi128_si32(rgb);
+
+            src += 4;
+            dst += 4;
+            count -= 4;
+        }
+        RGB1_to_R_portable(dst, src, count);
+}
+
+#else
+inline void RGB1_to_RGB(uint8_t dst[], const uint32_t* src, int count) {
+    RGB1_to_RGB_portable(dst, src, count);
+}
+inline void RGB1_to_R(uint8_t dst[], const uint32_t* src, int count) {
+    RGB1_to_R_portable(dst, src, count);
+}
+#endif
+
+} // namespace
+
+#endif
diff --git a/external/skia/source/skia_opts_ssse3.cxx b/external/skia/source/skia_opts_ssse3.cxx
new file mode 100644
index 000000000..31a446c99
--- /dev/null
+++ b/external/skia/source/skia_opts_ssse3.cxx
@@ -0,0 +1,17 @@
+/*
+ * Copyright 2015 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include <skia_opts.hxx>
+#define SK_OPTS_NS ssse3
+#include "skia_opts_internal.hxx"
+
+namespace SkLoOpts {
+    void Init_ssse3() {
+        RGB1_to_RGB           = ssse3::RGB1_to_RGB;
+        RGB1_to_R             = ssse3::RGB1_to_R;
+    }
+}
diff --git a/external/skia/swap-buffers-rect.patch.1 b/external/skia/swap-buffers-rect.patch.1
new file mode 100644
index 000000000..628a7e26c
--- /dev/null
+++ b/external/skia/swap-buffers-rect.patch.1
@@ -0,0 +1,153 @@
+diff --git a/tools/sk_app/GLWindowContext.h b/tools/sk_app/GLWindowContext.h
+index c519903006..5dc5bcd180 100644
+--- a/tools/sk_app/GLWindowContext.h
++++ b/tools/sk_app/GLWindowContext.h
+@@ -25,7 +25,7 @@ public:
+     bool isValid() override { return SkToBool(fBackendContext.get()); }
+ 
+     void resize(int w, int h) override;
+-    void swapBuffers() override;
++    void swapBuffers(const SkIRect* rect = nullptr) override;
+ 
+     void setDisplayParams(const DisplayParams& params) override;
+ 
+diff --git a/tools/sk_app/MetalWindowContext.h b/tools/sk_app/MetalWindowContext.h
+index fbf35c3c2b..2194277922 100644
+--- a/tools/sk_app/MetalWindowContext.h
++++ b/tools/sk_app/MetalWindowContext.h
+@@ -29,7 +29,7 @@ public:
+ 
+     bool isValid() override { return fValid; }
+ 
+-    void swapBuffers() override;
++    void swapBuffers(const SkIRect* rect = nullptr) override;
+ 
+     void setDisplayParams(const DisplayParams& params) override;
+ 
+diff --git a/tools/sk_app/MetalWindowContext.mm b/tools/sk_app/MetalWindowContext.mm
+index 49dc77b74d..ca1d74dc6c 100644
+--- a/tools/sk_app/MetalWindowContext.mm
++++ b/tools/sk_app/MetalWindowContext.mm
+@@ -187,7 +187,7 @@ GrBackendRenderTarget backendRT(fWidth,
+     return surface;
+ }
+ 
+-void MetalWindowContext::swapBuffers() {
++void MetalWindowContext::swapBuffers(const SkIRect*) {
+     id<CAMetalDrawable> currentDrawable = (id<CAMetalDrawable>)fDrawableHandle;
+ 
+     id<MTLCommandBuffer> commandBuffer([*fShared->fQueue commandBuffer]);
+diff --git a/tools/sk_app/VulkanWindowContext.cpp b/tools/sk_app/VulkanWindowContext.cpp
+index 2b36d60076..d73978c9e4 100644
+--- a/tools/sk_app/VulkanWindowContext.cpp
++++ b/tools/sk_app/VulkanWindowContext.cpp
+@@ -572,7 +572,7 @@ sk_sp<SkSurface> VulkanWindowContext::getBackbufferSurface() {
+     return sk_ref_sp(surface);
+ }
+ 
+-void VulkanWindowContext::swapBuffers() {
++void VulkanWindowContext::swapBuffers(const SkIRect*) {
+ 
+     BackbufferInfo* backbuffer = fBackbuffers + fCurrentBackbufferIndex;
+     SkSurface* surface = fSurfaces[backbuffer->fImageIndex].get();
+diff --git a/tools/sk_app/VulkanWindowContext.h b/tools/sk_app/VulkanWindowContext.h
+index 92bfba6dff..46f7fd97bd 100644
+--- a/tools/sk_app/VulkanWindowContext.h
++++ b/tools/sk_app/VulkanWindowContext.h
+@@ -32,7 +32,7 @@ public:
+     static GrDirectContext* getSharedGrDirectContext() { return fGlobalShared ? fGlobalShared->fContext.get() : nullptr; }
+ 
+     sk_sp<SkSurface> getBackbufferSurface() override;
+-    void swapBuffers() override;
++    void swapBuffers(const SkIRect* rect = nullptr) override;
+ 
+     bool isValid() override { return fSurface != VK_NULL_HANDLE; }
+ 
+diff --git a/tools/sk_app/WindowContext.h b/tools/sk_app/WindowContext.h
+index 68bb84b988..e15c1a3cf3 100644
+--- a/tools/sk_app/WindowContext.h
++++ b/tools/sk_app/WindowContext.h
+@@ -8,6 +8,7 @@
+ #define WindowContext_DEFINED
+ 
+ #include "include/core/SkRefCnt.h"
++#include "include/core/SkRect.h"
+ #include "include/core/SkSurfaceProps.h"
+ #include "include/gpu/GrTypes.h"
+ #include "include/gpu/GrDirectContext.h"
+@@ -25,7 +26,7 @@ public:
+ 
+     virtual sk_sp<SkSurface> getBackbufferSurface() = 0;
+ 
+-    virtual void swapBuffers() = 0;
++    virtual void swapBuffers(const SkIRect* rect = nullptr) = 0;
+ 
+     virtual bool isValid() = 0;
+ 
+diff --git a/tools/sk_app/unix/RasterWindowContext_unix.cpp b/tools/sk_app/unix/RasterWindowContext_unix.cpp
+index 6ac20962b7..2ea9e07588 100644
+--- a/tools/sk_app/unix/RasterWindowContext_unix.cpp
++++ b/tools/sk_app/unix/RasterWindowContext_unix.cpp
+@@ -19,7 +19,7 @@ public:
+     RasterWindowContext_xlib(Display*, XWindow, int width, int height, const DisplayParams&);
+ 
+     sk_sp<SkSurface> getBackbufferSurface() override;
+-    void swapBuffers() override;
++    void swapBuffers(const SkIRect* rect) override;
+     bool isValid() override { return SkToBool(fWindow); }
+     void resize(int  w, int h) override;
+     void setDisplayParams(const DisplayParams& params) override;
+@@ -60,7 +60,7 @@ void RasterWindowContext_xlib::resize(int  w, int h) {
+ 
+ sk_sp<SkSurface> RasterWindowContext_xlib::getBackbufferSurface() { return fBackbufferSurface; }
+ 
+-void RasterWindowContext_xlib::swapBuffers() {
++void RasterWindowContext_xlib::swapBuffers(const SkIRect* rect) {
+     SkPixmap pm;
+     if (!fBackbufferSurface->peekPixels(&pm)) {
+         return;
+@@ -82,7 +82,9 @@ void RasterWindowContext_xlib::swapBuffers() {
+     if (!XInitImage(&image)) {
+         return;
+     }
+-    XPutImage(fDisplay, fWindow, fGC, &image, 0, 0, 0, 0, pm.width(), pm.height());
++    SkIRect update = rect ? *rect : SkIRect::MakeWH( pm.width(), pm.height());
++    XPutImage(fDisplay, fWindow, fGC, &image, update.x(), update.y(),
++              update.x(), update.y(), update.width(), update.height());
+ }
+ 
+ }  // anonymous namespace
+diff --git a/tools/sk_app/win/RasterWindowContext_win.cpp b/tools/sk_app/win/RasterWindowContext_win.cpp
+index d80c6fbeec..72df8d5170 100644
+--- a/tools/sk_app/win/RasterWindowContext_win.cpp
++++ b/tools/sk_app/win/RasterWindowContext_win.cpp
+@@ -22,7 +22,7 @@ public:
+     RasterWindowContext_win(HWND, const DisplayParams&);
+ 
+     sk_sp<SkSurface> getBackbufferSurface() override;
+-    void swapBuffers() override;
++    void swapBuffers(const SkIRect* rect) override;
+     bool isValid() override { return SkToBool(fWnd); }
+     void resize(int w, int h) override;
+     void setDisplayParams(const DisplayParams& params) override;
+@@ -75,13 +75,17 @@ void RasterWindowContext_win::resize(int w, int h) {
+ 
+ sk_sp<SkSurface> RasterWindowContext_win::getBackbufferSurface() { return fBackbufferSurface; }
+ 
+-void RasterWindowContext_win::swapBuffers() {
++void RasterWindowContext_win::swapBuffers(const SkIRect* rect) {
+     BITMAPINFO* bmpInfo = reinterpret_cast<BITMAPINFO*>(fSurfaceMemory.get());
+     HDC dc = GetDC(fWnd);
+     SkPixmap pixmap;
+     fBackbufferSurface->peekPixels(&pixmap);
+-    StretchDIBits(dc, 0, 0, fWidth, fHeight, 0, 0, fWidth, fHeight, pixmap.addr(), bmpInfo,
+-                  DIB_RGB_COLORS, SRCCOPY);
++    SkIRect update = rect ? *rect : SkIRect::MakeWH( fWidth, fHeight );
++    // It appears that y-axis handling is broken if it doesn't match the window size.
++    update = SkIRect::MakeXYWH( update.x(), 0, update.width(), fHeight );
++    StretchDIBits(dc, update.x(), update.y(), update.width(), update.height(),
++                  update.x(), update.y(), update.width(), update.height(),
++                  pixmap.addr(), bmpInfo, DIB_RGB_COLORS, SRCCOPY);
+     ReleaseDC(fWnd, dc);
+ }
+ 
diff --git a/external/skia/tdf148624.patch.1 b/external/skia/tdf148624.patch.1
new file mode 100644
index 000000000..c42beca22
--- /dev/null
+++ b/external/skia/tdf148624.patch.1
@@ -0,0 +1,60 @@
+commit b2cecde549c76cbd1c8b7d0cee2c6799936c1e7a
+Author: Greg Daniel <egdaniel@google.com>
+Date:   Thu Jun 16 11:29:08 2022 -0400
+
+    Fix not using texture barrier on StrokeTessOp.
+    
+    Previously we were overwriting the renderpassXferBarriers flag on
+    ProgramInfo to set it to kNone. This flag is meant to say whether or not
+    the entire render pass uses barriers or not. This is needed in Vulkan
+    because all pipelines in a render pass that has an input attachment
+    must bind the input attachment regardless if it is used or not. So the
+    pipeline must be created with a layout for an input attachment
+    descriptor set.
+    
+    This change just removes to performance optimization to only use the
+    barrier on the stencil and not fill draw. This use case shouldn't
+    come up too often and also shouldn't be a big perf hit regardless.
+    The way GrAppliedClip is created/used it is hard for us to create
+    multiple different Pipeline objects: one for stencil and one for the
+    fill.
+    
+    Bug: skia:13402
+    Change-Id: I15ce74b4d41b90d3dd4169a1f4fb77ed87c8b26d
+    Reviewed-on: https://skia-review.googlesource.com/c/skia/+/549898
+    Reviewed-by: Michael Ludwig <michaelludwig@google.com>
+    Commit-Queue: Greg Daniel <egdaniel@google.com>
+
+diff --git a/src/gpu/ganesh/ops/StrokeTessellateOp.cpp b/src/gpu/ganesh/ops/StrokeTessellateOp.cpp
+index 8f47441eb9..de8153cd0f 100644
+--- a/src/gpu/ganesh/ops/StrokeTessellateOp.cpp
++++ b/src/gpu/ganesh/ops/StrokeTessellateOp.cpp
+@@ -179,7 +179,12 @@ void StrokeTessellateOp::prePrepareTessellator(GrTessellationShader::ProgramArgs
+         fStencilProgram = GrTessellationShader::MakeProgram(args, fTessellationShader, pipeline,
+                                                             &kMarkStencil);
+         fillStencil = &kTestAndResetStencil;
+-        args.fXferBarrierFlags = GrXferBarrierFlags::kNone;
++        // TODO: Currently if we have a texture barrier for a dst read it will get put in before
++        // both the stencil draw and the fill draw. In reality we only really need the barrier
++        // once to guard the reads of the color buffer in the fill from the previous writes. Maybe
++        // we can investigate how to remove one of these barriers but it is probably not something
++        // that is required a lot and thus the extra barrier shouldn't be too much of a perf hit to
++        // general Skia use.
+     }
+ 
+     fFillProgram = GrTessellationShader::MakeProgram(args, fTessellationShader, pipeline,
+diff --git a/src/gpu/ganesh/vk/GrVkPipelineStateBuilder.cpp b/src/gpu/ganesh/vk/GrVkPipelineStateBuilder.cpp
+index 54bc7f857a..0d61b8c4cb 100644
+--- a/src/gpu/ganesh/vk/GrVkPipelineStateBuilder.cpp
++++ b/src/gpu/ganesh/vk/GrVkPipelineStateBuilder.cpp
+@@ -279,6 +279,10 @@ GrVkPipelineState* GrVkPipelineStateBuilder::finalize(const GrProgramDesc& desc,
+         }
+     }
+ 
++    // The vulkan spec says that if a subpass has an input attachment, then the input attachment
++    // descriptor set must be bound to all pipelines in that subpass. This includes pipelines that
++    // don't actually use the input attachment. Thus we look at the renderPassBarriers and not just
++    // the DstProxyView barrier flags to determine if we use the input attachment.
+     bool usesInput = SkToBool(fProgramInfo.renderPassBarriers() & GrXferBarrierFlags::kTexture);
+     uint32_t layoutCount =
+         usesInput ? GrVkUniformHandler::kDescSetCount : (GrVkUniformHandler::kDescSetCount - 1);
diff --git a/external/skia/ubsan.patch.1 b/external/skia/ubsan.patch.1
new file mode 100644
index 000000000..005fdfebf
--- /dev/null
+++ b/external/skia/ubsan.patch.1
@@ -0,0 +1,42 @@
+diff --git a/include/private/gpu/ganesh/GrContext_Base.h b/include/private/gpu/ganesh/GrContext_Base.h
+index 847e76f232..e27d9454f8 100644
+--- a/include/private/gpu/ganesh/GrContext_Base.h
++++ b/include/private/gpu/ganesh/GrContext_Base.h
+@@ -20,7 +20,7 @@ class GrDirectContext;
+ class GrImageContext;
+ class GrRecordingContext;
+ 
+-class GrContext_Base : public SkRefCnt {
++class SK_API GrContext_Base : public SkRefCnt {
+ public:
+     ~GrContext_Base() override;
+ 
+@@ -32,7 +32,7 @@ public:
+     /*
+      * The 3D API backing this context
+      */
+-    SK_API GrBackendApi backend() const;
++    GrBackendApi backend() const;
+ 
+     /*
+      * Retrieve the default GrBackendFormat for a given SkColorType and renderability.
+@@ -41,16 +41,16 @@ public:
+      *
+      * The caller should check that the returned format is valid.
+      */
+-    SK_API GrBackendFormat defaultBackendFormat(SkColorType, GrRenderable) const;
++    GrBackendFormat defaultBackendFormat(SkColorType, GrRenderable) const;
+ 
+-    SK_API GrBackendFormat compressedBackendFormat(SkImage::CompressionType) const;
++    GrBackendFormat compressedBackendFormat(SkImage::CompressionType) const;
+ 
+     /**
+      * Gets the maximum supported sample count for a color type. 1 is returned if only non-MSAA
+      * rendering is supported for the color type. 0 is returned if rendering to this color type
+      * is not supported at all.
+      */
+-    SK_API int maxSurfaceSampleCountForColorType(SkColorType colorType) const;
++    int maxSurfaceSampleCountForColorType(SkColorType colorType) const;
+ 
+     // TODO: When the public version is gone, rename to refThreadSafeProxy and add raw ptr ver.
+     sk_sp<GrContextThreadSafeProxy> threadSafeProxy();
diff --git a/external/skia/vk_mem_alloc.patch.1 b/external/skia/vk_mem_alloc.patch.1
new file mode 100644
index 000000000..94f2504cb
--- /dev/null
+++ b/external/skia/vk_mem_alloc.patch.1
@@ -0,0 +1,19639 @@
+diff --git a/third_party/vulkanmemoryallocator/GrVulkanMemoryAllocator.h b/third_party/vulkanmemoryallocator/GrVulkanMemoryAllocator.h
+index 1c6212bd47..756175b4e7 100644
+--- a/third_party/vulkanmemoryallocator/GrVulkanMemoryAllocator.h
++++ b/third_party/vulkanmemoryallocator/GrVulkanMemoryAllocator.h
+@@ -32,7 +32,7 @@
+ #define VULKAN_H_
+ #define GR_NEEDED_TO_DEFINE_VULKAN_H
+ #endif
+-#include "vk_mem_alloc.h"
++#include "include/vk_mem_alloc.h"
+ #ifdef GR_NEEDED_TO_DEFINE_VULKAN_H
+ #undef VULKAN_H_
+ #endif
+diff --git a/third_party/vulkanmemoryallocator/include/LICENSE.txt b/third_party/vulkanmemoryallocator/include/LICENSE.txt
+new file mode 100644
+index 0000000000..dbfe253391
+--- /dev/null
++++ b/third_party/vulkanmemoryallocator/include/LICENSE.txt
+@@ -0,0 +1,19 @@
++Copyright (c) 2017-2018 Advanced Micro Devices, Inc. All rights reserved.
++
++Permission is hereby granted, free of charge, to any person obtaining a copy
++of this software and associated documentation files (the "Software"), to deal
++in the Software without restriction, including without limitation the rights
++to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
++copies of the Software, and to permit persons to whom the Software is
++furnished to do so, subject to the following conditions:
++
++The above copyright notice and this permission notice shall be included in
++all copies or substantial portions of the Software.
++
++THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
++IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
++FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
++AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
++LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
++OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
++THE SOFTWARE.
+diff --git a/third_party/vulkanmemoryallocator/include/vk_mem_alloc.h b/third_party/vulkanmemoryallocator/include/vk_mem_alloc.h
+new file mode 100644
+index 0000000000..90410b56af
+--- /dev/null
++++ b/third_party/vulkanmemoryallocator/include/vk_mem_alloc.h
+@@ -0,0 +1,19595 @@
++//
++// Copyright (c) 2017-2022 Advanced Micro Devices, Inc. All rights reserved.
++//
++// Permission is hereby granted, free of charge, to any person obtaining a copy
++// of this software and associated documentation files (the "Software"), to deal
++// in the Software without restriction, including without limitation the rights
++// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
++// copies of the Software, and to permit persons to whom the Software is
++// furnished to do so, subject to the following conditions:
++//
++// The above copyright notice and this permission notice shall be included in
++// all copies or substantial portions of the Software.
++//
++// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
++// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
++// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
++// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
++// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
++// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
++// THE SOFTWARE.
++//
++
++#ifndef AMD_VULKAN_MEMORY_ALLOCATOR_H
++#define AMD_VULKAN_MEMORY_ALLOCATOR_H
++
++/** \mainpage Vulkan Memory Allocator
++
++<b>Version 3.0.1-development (2022-03-28)</b>
++
++Copyright (c) 2017-2022 Advanced Micro Devices, Inc. All rights reserved. \n
++License: MIT
++
++<b>API documentation divided into groups:</b> [Modules](modules.html)
++
++\section main_table_of_contents Table of contents
++
++- <b>User guide</b>
++  - \subpage quick_start
++    - [Project setup](@ref quick_start_project_setup)
++    - [Initialization](@ref quick_start_initialization)
++    - [Resource allocation](@ref quick_start_resource_allocation)
++  - \subpage choosing_memory_type
++    - [Usage](@ref choosing_memory_type_usage)
++    - [Required and preferred flags](@ref choosing_memory_type_required_preferred_flags)
++    - [Explicit memory types](@ref choosing_memory_type_explicit_memory_types)
++    - [Custom memory pools](@ref choosing_memory_type_custom_memory_pools)
++    - [Dedicated allocations](@ref choosing_memory_type_dedicated_allocations)
++  - \subpage memory_mapping
++    - [Mapping functions](@ref memory_mapping_mapping_functions)
++    - [Persistently mapped memory](@ref memory_mapping_persistently_mapped_memory)
++    - [Cache flush and invalidate](@ref memory_mapping_cache_control)
++  - \subpage staying_within_budget
++    - [Querying for budget](@ref staying_within_budget_querying_for_budget)
++    - [Controlling memory usage](@ref staying_within_budget_controlling_memory_usage)
++  - \subpage resource_aliasing
++  - \subpage custom_memory_pools
++    - [Choosing memory type index](@ref custom_memory_pools_MemTypeIndex)
++    - [Linear allocation algorithm](@ref linear_algorithm)
++      - [Free-at-once](@ref linear_algorithm_free_at_once)
++      - [Stack](@ref linear_algorithm_stack)
++      - [Double stack](@ref linear_algorithm_double_stack)
++      - [Ring buffer](@ref linear_algorithm_ring_buffer)
++  - \subpage defragmentation
++  - \subpage statistics
++    - [Numeric statistics](@ref statistics_numeric_statistics)
++    - [JSON dump](@ref statistics_json_dump)
++  - \subpage allocation_annotation
++    - [Allocation user data](@ref allocation_user_data)
++    - [Allocation names](@ref allocation_names)
++  - \subpage virtual_allocator
++  - \subpage debugging_memory_usage
++    - [Memory initialization](@ref debugging_memory_usage_initialization)
++    - [Margins](@ref debugging_memory_usage_margins)
++    - [Corruption detection](@ref debugging_memory_usage_corruption_detection)
++  - \subpage opengl_interop
++- \subpage usage_patterns
++    - [GPU-only resource](@ref usage_patterns_gpu_only)
++    - [Staging copy for upload](@ref usage_patterns_staging_copy_upload)
++    - [Readback](@ref usage_patterns_readback)
++    - [Advanced data uploading](@ref usage_patterns_advanced_data_uploading)
++    - [Other use cases](@ref usage_patterns_other_use_cases)
++- \subpage configuration
++  - [Pointers to Vulkan functions](@ref config_Vulkan_functions)
++  - [Custom host memory allocator](@ref custom_memory_allocator)
++  - [Device memory allocation callbacks](@ref allocation_callbacks)
++  - [Device heap memory limit](@ref heap_memory_limit)
++- <b>Extension support</b>
++    - \subpage vk_khr_dedicated_allocation
++    - \subpage enabling_buffer_device_address
++    - \subpage vk_ext_memory_priority
++    - \subpage vk_amd_device_coherent_memory
++- \subpage general_considerations
++  - [Thread safety](@ref general_considerations_thread_safety)
++  - [Versioning and compatibility](@ref general_considerations_versioning_and_compatibility)
++  - [Validation layer warnings](@ref general_considerations_validation_layer_warnings)
++  - [Allocation algorithm](@ref general_considerations_allocation_algorithm)
++  - [Features not supported](@ref general_considerations_features_not_supported)
++
++\section main_see_also See also
++
++- [**Product page on GPUOpen**](https://gpuopen.com/gaming-product/vulkan-memory-allocator/)
++- [**Source repository on GitHub**](https://github.com/GPUOpen-LibrariesAndSDKs/VulkanMemoryAllocator)
++
++\defgroup group_init Library initialization
++
++\brief API elements related to the initialization and management of the entire library, especially #VmaAllocator object.
++
++\defgroup group_alloc Memory allocation
++
++\brief API elements related to the allocation, deallocation, and management of Vulkan memory, buffers, images.
++Most basic ones being: vmaCreateBuffer(), vmaCreateImage().
++
++\defgroup group_virtual Virtual allocator
++
++\brief API elements related to the mechanism of \ref virtual_allocator - using the core allocation algorithm
++for user-defined purpose without allocating any real GPU memory.
++
++\defgroup group_stats Statistics
++
++\brief API elements that query current status of the allocator, from memory usage, budget, to full dump of the internal state in JSON format.
++See documentation chapter: \ref statistics.
++*/
++
++
++#ifdef __cplusplus
++extern "C" {
++#endif
++
++#ifndef VULKAN_H_
++    #include <vulkan/vulkan.h>
++#endif
++
++// Define this macro to declare maximum supported Vulkan version in format AAABBBCCC,
++// where AAA = major, BBB = minor, CCC = patch.
++// If you want to use version > 1.0, it still needs to be enabled via VmaAllocatorCreateInfo::vulkanApiVersion.
++#if !defined(VMA_VULKAN_VERSION)
++    #if defined(VK_VERSION_1_3)
++        #define VMA_VULKAN_VERSION 1003000
++    #elif defined(VK_VERSION_1_2)
++        #define VMA_VULKAN_VERSION 1002000
++    #elif defined(VK_VERSION_1_1)
++        #define VMA_VULKAN_VERSION 1001000
++    #else
++        #define VMA_VULKAN_VERSION 1000000
++    #endif
++#endif
++
++#if defined(__ANDROID__) && defined(VK_NO_PROTOTYPES) && VMA_STATIC_VULKAN_FUNCTIONS
++    extern PFN_vkGetInstanceProcAddr vkGetInstanceProcAddr;
++    extern PFN_vkGetDeviceProcAddr vkGetDeviceProcAddr;
++    extern PFN_vkGetPhysicalDeviceProperties vkGetPhysicalDeviceProperties;
++    extern PFN_vkGetPhysicalDeviceMemoryProperties vkGetPhysicalDeviceMemoryProperties;
++    extern PFN_vkAllocateMemory vkAllocateMemory;
++    extern PFN_vkFreeMemory vkFreeMemory;
++    extern PFN_vkMapMemory vkMapMemory;
++    extern PFN_vkUnmapMemory vkUnmapMemory;
++    extern PFN_vkFlushMappedMemoryRanges vkFlushMappedMemoryRanges;
++    extern PFN_vkInvalidateMappedMemoryRanges vkInvalidateMappedMemoryRanges;
++    extern PFN_vkBindBufferMemory vkBindBufferMemory;
++    extern PFN_vkBindImageMemory vkBindImageMemory;
++    extern PFN_vkGetBufferMemoryRequirements vkGetBufferMemoryRequirements;
++    extern PFN_vkGetImageMemoryRequirements vkGetImageMemoryRequirements;
++    extern PFN_vkCreateBuffer vkCreateBuffer;
++    extern PFN_vkDestroyBuffer vkDestroyBuffer;
++    extern PFN_vkCreateImage vkCreateImage;
++    extern PFN_vkDestroyImage vkDestroyImage;
++    extern PFN_vkCmdCopyBuffer vkCmdCopyBuffer;
++    #if VMA_VULKAN_VERSION >= 1001000
++        extern PFN_vkGetBufferMemoryRequirements2 vkGetBufferMemoryRequirements2;
++        extern PFN_vkGetImageMemoryRequirements2 vkGetImageMemoryRequirements2;
++        extern PFN_vkBindBufferMemory2 vkBindBufferMemory2;
++        extern PFN_vkBindImageMemory2 vkBindImageMemory2;
++        extern PFN_vkGetPhysicalDeviceMemoryProperties2 vkGetPhysicalDeviceMemoryProperties2;
++    #endif // #if VMA_VULKAN_VERSION >= 1001000
++#endif // #if defined(__ANDROID__) && VMA_STATIC_VULKAN_FUNCTIONS && VK_NO_PROTOTYPES
++
++#if !defined(VMA_DEDICATED_ALLOCATION)
++    #if VK_KHR_get_memory_requirements2 && VK_KHR_dedicated_allocation
++        #define VMA_DEDICATED_ALLOCATION 1
++    #else
++        #define VMA_DEDICATED_ALLOCATION 0
++    #endif
++#endif
++
++#if !defined(VMA_BIND_MEMORY2)
++    #if VK_KHR_bind_memory2
++        #define VMA_BIND_MEMORY2 1
++    #else
++        #define VMA_BIND_MEMORY2 0
++    #endif
++#endif
++
++#if !defined(VMA_MEMORY_BUDGET)
++    #if VK_EXT_memory_budget && (VK_KHR_get_physical_device_properties2 || VMA_VULKAN_VERSION >= 1001000)
++        #define VMA_MEMORY_BUDGET 1
++    #else
++        #define VMA_MEMORY_BUDGET 0
++    #endif
++#endif
++
++// Defined to 1 when VK_KHR_buffer_device_address device extension or equivalent core Vulkan 1.2 feature is defined in its headers.
++#if !defined(VMA_BUFFER_DEVICE_ADDRESS)
++    #if VK_KHR_buffer_device_address || VMA_VULKAN_VERSION >= 1002000
++        #define VMA_BUFFER_DEVICE_ADDRESS 1
++    #else
++        #define VMA_BUFFER_DEVICE_ADDRESS 0
++    #endif
++#endif
++
++// Defined to 1 when VK_EXT_memory_priority device extension is defined in Vulkan headers.
++#if !defined(VMA_MEMORY_PRIORITY)
++    #if VK_EXT_memory_priority
++        #define VMA_MEMORY_PRIORITY 1
++    #else
++        #define VMA_MEMORY_PRIORITY 0
++    #endif
++#endif
++
++// Defined to 1 when VK_KHR_external_memory device extension is defined in Vulkan headers.
++#if !defined(VMA_EXTERNAL_MEMORY)
++    #if VK_KHR_external_memory
++        #define VMA_EXTERNAL_MEMORY 1
++    #else
++        #define VMA_EXTERNAL_MEMORY 0
++    #endif
++#endif
++
++// Define these macros to decorate all public functions with additional code,
++// before and after returned type, appropriately. This may be useful for
++// exporting the functions when compiling VMA as a separate library. Example:
++// #define VMA_CALL_PRE  __declspec(dllexport)
++// #define VMA_CALL_POST __cdecl
++#ifndef VMA_CALL_PRE
++    #define VMA_CALL_PRE
++#endif
++#ifndef VMA_CALL_POST
++    #define VMA_CALL_POST
++#endif
++
++// Define this macro to decorate pointers with an attribute specifying the
++// length of the array they point to if they are not null.
++//
++// The length may be one of
++// - The name of another parameter in the argument list where the pointer is declared
++// - The name of another member in the struct where the pointer is declared
++// - The name of a member of a struct type, meaning the value of that member in
++//   the context of the call. For example
++//   VMA_LEN_IF_NOT_NULL("VkPhysicalDeviceMemoryProperties::memoryHeapCount"),
++//   this means the number of memory heaps available in the device associated
++//   with the VmaAllocator being dealt with.
++#ifndef VMA_LEN_IF_NOT_NULL
++    #define VMA_LEN_IF_NOT_NULL(len)
++#endif
++
++// The VMA_NULLABLE macro is defined to be _Nullable when compiling with Clang.
++// see: https://clang.llvm.org/docs/AttributeReference.html#nullable
++#ifndef VMA_NULLABLE
++    #ifdef __clang__
++        #define VMA_NULLABLE _Nullable
++    #else
++        #define VMA_NULLABLE
++    #endif
++#endif
++
++// The VMA_NOT_NULL macro is defined to be _Nonnull when compiling with Clang.
++// see: https://clang.llvm.org/docs/AttributeReference.html#nonnull
++#ifndef VMA_NOT_NULL
++    #ifdef __clang__
++        #define VMA_NOT_NULL _Nonnull
++    #else
++        #define VMA_NOT_NULL
++    #endif
++#endif
++
++// If non-dispatchable handles are represented as pointers then we can give
++// then nullability annotations
++#ifndef VMA_NOT_NULL_NON_DISPATCHABLE
++    #if defined(__LP64__) || defined(_WIN64) || (defined(__x86_64__) && !defined(__ILP32__) ) || defined(_M_X64) || defined(__ia64) || defined (_M_IA64) || defined(__aarch64__) || defined(__powerpc64__)
++        #define VMA_NOT_NULL_NON_DISPATCHABLE VMA_NOT_NULL
++    #else
++        #define VMA_NOT_NULL_NON_DISPATCHABLE
++    #endif
++#endif
++
++#ifndef VMA_NULLABLE_NON_DISPATCHABLE
++    #if defined(__LP64__) || defined(_WIN64) || (defined(__x86_64__) && !defined(__ILP32__) ) || defined(_M_X64) || defined(__ia64) || defined (_M_IA64) || defined(__aarch64__) || defined(__powerpc64__)
++        #define VMA_NULLABLE_NON_DISPATCHABLE VMA_NULLABLE
++    #else
++        #define VMA_NULLABLE_NON_DISPATCHABLE
++    #endif
++#endif
++
++#ifndef VMA_STATS_STRING_ENABLED
++    #define VMA_STATS_STRING_ENABLED 1
++#endif
++
++////////////////////////////////////////////////////////////////////////////////
++////////////////////////////////////////////////////////////////////////////////
++// 
++//    INTERFACE
++// 
++////////////////////////////////////////////////////////////////////////////////
++////////////////////////////////////////////////////////////////////////////////
++
++// Sections for managing code placement in file, only for development purposes e.g. for convenient folding inside an IDE.
++#ifndef _VMA_ENUM_DECLARATIONS
++
++/**
++\addtogroup group_init
++@{
++*/
++
++/// Flags for created #VmaAllocator.
++typedef enum VmaAllocatorCreateFlagBits
++{
++    /** \brief Allocator and all objects created from it will not be synchronized internally, so you must guarantee they are used from only one thread at a time or synchronized externally by you.
++
++    Using this flag may increase performance because internal mutexes are not used.
++    */
++    VMA_ALLOCATOR_CREATE_EXTERNALLY_SYNCHRONIZED_BIT = 0x00000001,
++    /** \brief Enables usage of VK_KHR_dedicated_allocation extension.
++
++    The flag works only if VmaAllocatorCreateInfo::vulkanApiVersion `== VK_API_VERSION_1_0`.
++    When it is `VK_API_VERSION_1_1`, the flag is ignored because the extension has been promoted to Vulkan 1.1.
++
++    Using this extension will automatically allocate dedicated blocks of memory for
++    some buffers and images instead of suballocating place for them out of bigger
++    memory blocks (as if you explicitly used #VMA_ALLOCATION_CREATE_DEDICATED_MEMORY_BIT
++    flag) when it is recommended by the driver. It may improve performance on some
++    GPUs.
++
++    You may set this flag only if you found out that following device extensions are
++    supported, you enabled them while creating Vulkan device passed as
++    VmaAllocatorCreateInfo::device, and you want them to be used internally by this
++    library:
++
++    - VK_KHR_get_memory_requirements2 (device extension)
++    - VK_KHR_dedicated_allocation (device extension)
++
++    When this flag is set, you can experience following warnings reported by Vulkan
++    validation layer. You can ignore them.
++
++    > vkBindBufferMemory(): Binding memory to buffer 0x2d but vkGetBufferMemoryRequirements() has not been called on that buffer.
++    */
++    VMA_ALLOCATOR_CREATE_KHR_DEDICATED_ALLOCATION_BIT = 0x00000002,
++    /**
++    Enables usage of VK_KHR_bind_memory2 extension.
++
++    The flag works only if VmaAllocatorCreateInfo::vulkanApiVersion `== VK_API_VERSION_1_0`.
++    When it is `VK_API_VERSION_1_1`, the flag is ignored because the extension has been promoted to Vulkan 1.1.
++
++    You may set this flag only if you found out that this device extension is supported,
++    you enabled it while creating Vulkan device passed as VmaAllocatorCreateInfo::device,
++    and you want it to be used internally by this library.
++
++    The extension provides functions `vkBindBufferMemory2KHR` and `vkBindImageMemory2KHR`,
++    which allow to pass a chain of `pNext` structures while binding.
++    This flag is required if you use `pNext` parameter in vmaBindBufferMemory2() or vmaBindImageMemory2().
++    */
++    VMA_ALLOCATOR_CREATE_KHR_BIND_MEMORY2_BIT = 0x00000004,
++    /**
++    Enables usage of VK_EXT_memory_budget extension.
++
++    You may set this flag only if you found out that this device extension is supported,
++    you enabled it while creating Vulkan device passed as VmaAllocatorCreateInfo::device,
++    and you want it to be used internally by this library, along with another instance extension
++    VK_KHR_get_physical_device_properties2, which is required by it (or Vulkan 1.1, where this extension is promoted).
++
++    The extension provides query for current memory usage and budget, which will probably
++    be more accurate than an estimation used by the library otherwise.
++    */
++    VMA_ALLOCATOR_CREATE_EXT_MEMORY_BUDGET_BIT = 0x00000008,
++    /**
++    Enables usage of VK_AMD_device_coherent_memory extension.
++
++    You may set this flag only if you:
++
++    - found out that this device extension is supported and enabled it while creating Vulkan device passed as VmaAllocatorCreateInfo::device,
++    - checked that `VkPhysicalDeviceCoherentMemoryFeaturesAMD::deviceCoherentMemory` is true and set it while creating the Vulkan device,
++    - want it to be used internally by this library.
++
++    The extension and accompanying device feature provide access to memory types with
++    `VK_MEMORY_PROPERTY_DEVICE_COHERENT_BIT_AMD` and `VK_MEMORY_PROPERTY_DEVICE_UNCACHED_BIT_AMD` flags.
++    They are useful mostly for writing breadcrumb markers - a common method for debugging GPU crash/hang/TDR.
++
++    When the extension is not enabled, such memory types are still enumerated, but their usage is illegal.
++    To protect from this error, if you don't create the allocator with this flag, it will refuse to allocate any memory or create a custom pool in such memory type,
++    returning `VK_ERROR_FEATURE_NOT_PRESENT`.
++    */
++    VMA_ALLOCATOR_CREATE_AMD_DEVICE_COHERENT_MEMORY_BIT = 0x00000010,
++    /**
++    Enables usage of "buffer device address" feature, which allows you to use function
++    `vkGetBufferDeviceAddress*` to get raw GPU pointer to a buffer and pass it for usage inside a shader.
++
++    You may set this flag only if you:
++
++    1. (For Vulkan version < 1.2) Found as available and enabled device extension
++    VK_KHR_buffer_device_address.
++    This extension is promoted to core Vulkan 1.2.
++    2. Found as available and enabled device feature `VkPhysicalDeviceBufferDeviceAddressFeatures::bufferDeviceAddress`.
++
++    When this flag is set, you can create buffers with `VK_BUFFER_USAGE_SHADER_DEVICE_ADDRESS_BIT` using VMA.
++    The library automatically adds `VK_MEMORY_ALLOCATE_DEVICE_ADDRESS_BIT` to
++    allocated memory blocks wherever it might be needed.
++
++    For more information, see documentation chapter \ref enabling_buffer_device_address.
++    */
++    VMA_ALLOCATOR_CREATE_BUFFER_DEVICE_ADDRESS_BIT = 0x00000020,
++    /**
++    Enables usage of VK_EXT_memory_priority extension in the library.
++
++    You may set this flag only if you found available and enabled this device extension,
++    along with `VkPhysicalDeviceMemoryPriorityFeaturesEXT::memoryPriority == VK_TRUE`,
++    while creating Vulkan device passed as VmaAllocatorCreateInfo::device.
++
++    When this flag is used, VmaAllocationCreateInfo::priority and VmaPoolCreateInfo::priority
++    are used to set priorities of allocated Vulkan memory. Without it, these variables are ignored.
++
++    A priority must be a floating-point value between 0 and 1, indicating the priority of the allocation relative to other memory allocations.
++    Larger values are higher priority. The granularity of the priorities is implementation-dependent.
++    It is automatically passed to every call to `vkAllocateMemory` done by the library using structure `VkMemoryPriorityAllocateInfoEXT`.
++    The value to be used for default priority is 0.5.
++    For more details, see the documentation of the VK_EXT_memory_priority extension.
++    */
++    VMA_ALLOCATOR_CREATE_EXT_MEMORY_PRIORITY_BIT = 0x00000040,
++
++    VMA_ALLOCATOR_CREATE_FLAG_BITS_MAX_ENUM = 0x7FFFFFFF
++} VmaAllocatorCreateFlagBits;
++/// See #VmaAllocatorCreateFlagBits.
++typedef VkFlags VmaAllocatorCreateFlags;
++
++/** @} */
++
++/**
++\addtogroup group_alloc
++@{
++*/
++
++/// \brief Intended usage of the allocated memory.
++typedef enum VmaMemoryUsage
++{
++    /** No intended memory usage specified.
++    Use other members of VmaAllocationCreateInfo to specify your requirements.
++    */
++    VMA_MEMORY_USAGE_UNKNOWN = 0,
++    /**
++    \deprecated Obsolete, preserved for backward compatibility.
++    Prefers `VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT`.
++    */
++    VMA_MEMORY_USAGE_GPU_ONLY = 1,
++    /**
++    \deprecated Obsolete, preserved for backward compatibility.
++    Guarantees `VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT` and `VK_MEMORY_PROPERTY_HOST_COHERENT_BIT`.
++    */
++    VMA_MEMORY_USAGE_CPU_ONLY = 2,
++    /**
++    \deprecated Obsolete, preserved for backward compatibility.
++    Guarantees `VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT`, prefers `VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT`.
++    */
++    VMA_MEMORY_USAGE_CPU_TO_GPU = 3,
++    /**
++    \deprecated Obsolete, preserved for backward compatibility.
++    Guarantees `VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT`, prefers `VK_MEMORY_PROPERTY_HOST_CACHED_BIT`.
++    */
++    VMA_MEMORY_USAGE_GPU_TO_CPU = 4,
++    /**
++    \deprecated Obsolete, preserved for backward compatibility.
++    Prefers not `VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT`.
++    */
++    VMA_MEMORY_USAGE_CPU_COPY = 5,
++    /**
++    Lazily allocated GPU memory having `VK_MEMORY_PROPERTY_LAZILY_ALLOCATED_BIT`.
++    Exists mostly on mobile platforms. Using it on desktop PC or other GPUs with no such memory type present will fail the allocation.
++
++    Usage: Memory for transient attachment images (color attachments, depth attachments etc.), created with `VK_IMAGE_USAGE_TRANSIENT_ATTACHMENT_BIT`.
++
++    Allocations with this usage are always created as dedicated - it implies #VMA_ALLOCATION_CREATE_DEDICATED_MEMORY_BIT.
++    */
++    VMA_MEMORY_USAGE_GPU_LAZILY_ALLOCATED = 6,
++    /**
++    Selects best memory type automatically.
++    This flag is recommended for most common use cases.
++
++    When using this flag, if you want to map the allocation (using vmaMapMemory() or #VMA_ALLOCATION_CREATE_MAPPED_BIT),
++    you must pass one of the flags: #VMA_ALLOCATION_CREATE_HOST_ACCESS_SEQUENTIAL_WRITE_BIT or #VMA_ALLOCATION_CREATE_HOST_ACCESS_RANDOM_BIT
++    in VmaAllocationCreateInfo::flags.
++    
++    It can be used only with functions that let the library know `VkBufferCreateInfo` or `VkImageCreateInfo`, e.g.
++    vmaCreateBuffer(), vmaCreateImage(), vmaFindMemoryTypeIndexForBufferInfo(), vmaFindMemoryTypeIndexForImageInfo()
++    and not with generic memory allocation functions.
++    */
++    VMA_MEMORY_USAGE_AUTO = 7,
++    /**
++    Selects best memory type automatically with preference for GPU (device) memory.
++
++    When using this flag, if you want to map the allocation (using vmaMapMemory() or #VMA_ALLOCATION_CREATE_MAPPED_BIT),
++    you must pass one of the flags: #VMA_ALLOCATION_CREATE_HOST_ACCESS_SEQUENTIAL_WRITE_BIT or #VMA_ALLOCATION_CREATE_HOST_ACCESS_RANDOM_BIT
++    in VmaAllocationCreateInfo::flags.
++
++    It can be used only with functions that let the library know `VkBufferCreateInfo` or `VkImageCreateInfo`, e.g.
++    vmaCreateBuffer(), vmaCreateImage(), vmaFindMemoryTypeIndexForBufferInfo(), vmaFindMemoryTypeIndexForImageInfo()
++    and not with generic memory allocation functions.
++    */
++    VMA_MEMORY_USAGE_AUTO_PREFER_DEVICE = 8,
++    /**
++    Selects best memory type automatically with preference for CPU (host) memory.
++
++    When using this flag, if you want to map the allocation (using vmaMapMemory() or #VMA_ALLOCATION_CREATE_MAPPED_BIT),
++    you must pass one of the flags: #VMA_ALLOCATION_CREATE_HOST_ACCESS_SEQUENTIAL_WRITE_BIT or #VMA_ALLOCATION_CREATE_HOST_ACCESS_RANDOM_BIT
++    in VmaAllocationCreateInfo::flags.
++
++    It can be used only with functions that let the library know `VkBufferCreateInfo` or `VkImageCreateInfo`, e.g.
++    vmaCreateBuffer(), vmaCreateImage(), vmaFindMemoryTypeIndexForBufferInfo(), vmaFindMemoryTypeIndexForImageInfo()
++    and not with generic memory allocation functions.
++    */
++    VMA_MEMORY_USAGE_AUTO_PREFER_HOST = 9,
++
++    VMA_MEMORY_USAGE_MAX_ENUM = 0x7FFFFFFF
++} VmaMemoryUsage;
++
++/// Flags to be passed as VmaAllocationCreateInfo::flags.
++typedef enum VmaAllocationCreateFlagBits
++{
++    /** \brief Set this flag if the allocation should have its own memory block.
++
++    Use it for special, big resources, like fullscreen images used as attachments.
++    */
++    VMA_ALLOCATION_CREATE_DEDICATED_MEMORY_BIT = 0x00000001,
++
++    /** \brief Set this flag to only try to allocate from existing `VkDeviceMemory` blocks and never create new such block.
++
++    If new allocation cannot be placed in any of the existing blocks, allocation
++    fails with `VK_ERROR_OUT_OF_DEVICE_MEMORY` error.
++
++    You should not use #VMA_ALLOCATION_CREATE_DEDICATED_MEMORY_BIT and
++    #VMA_ALLOCATION_CREATE_NEVER_ALLOCATE_BIT at the same time. It makes no sense.
++    */
++    VMA_ALLOCATION_CREATE_NEVER_ALLOCATE_BIT = 0x00000002,
++    /** \brief Set this flag to use a memory that will be persistently mapped and retrieve pointer to it.
++
++    Pointer to mapped memory will be returned through VmaAllocationInfo::pMappedData.
++
++    It is valid to use this flag for allocation made from memory type that is not
++    `HOST_VISIBLE`. This flag is then ignored and memory is not mapped. This is
++    useful if you need an allocation that is efficient to use on GPU
++    (`DEVICE_LOCAL`) and still want to map it directly if possible on platforms that
++    support it (e.g. Intel GPU).
++    */
++    VMA_ALLOCATION_CREATE_MAPPED_BIT = 0x00000004,
++    /** \deprecated Preserved for backward compatibility. Consider using vmaSetAllocationName() instead.
++    
++    Set this flag to treat VmaAllocationCreateInfo::pUserData as pointer to a
++    null-terminated string. Instead of copying pointer value, a local copy of the
++    string is made and stored in allocation's `pName`. The string is automatically
++    freed together with the allocation. It is also used in vmaBuildStatsString().
++    */
++    VMA_ALLOCATION_CREATE_USER_DATA_COPY_STRING_BIT = 0x00000020,
++    /** Allocation will be created from upper stack in a double stack pool.
++
++    This flag is only allowed for custom pools created with #VMA_POOL_CREATE_LINEAR_ALGORITHM_BIT flag.
++    */
++    VMA_ALLOCATION_CREATE_UPPER_ADDRESS_BIT = 0x00000040,
++    /** Create both buffer/image and allocation, but don't bind them together.
++    It is useful when you want to bind yourself to do some more advanced binding, e.g. using some extensions.
++    The flag is meaningful only with functions that bind by default: vmaCreateBuffer(), vmaCreateImage().
++    Otherwise it is ignored.
++
++    If you want to make sure the new buffer/image is not tied to the new memory allocation
++    through `VkMemoryDedicatedAllocateInfoKHR` structure in case the allocation ends up in its own memory block,
++    use also flag #VMA_ALLOCATION_CREATE_CAN_ALIAS_BIT.
++    */
++    VMA_ALLOCATION_CREATE_DONT_BIND_BIT = 0x00000080,
++    /** Create allocation only if additional device memory required for it, if any, won't exceed
++    memory budget. Otherwise return `VK_ERROR_OUT_OF_DEVICE_MEMORY`.
++    */
++    VMA_ALLOCATION_CREATE_WITHIN_BUDGET_BIT = 0x00000100,
++    /** \brief Set this flag if the allocated memory will have aliasing resources.
++    
++    Usage of this flag prevents supplying `VkMemoryDedicatedAllocateInfoKHR` when #VMA_ALLOCATION_CREATE_DEDICATED_MEMORY_BIT is specified.
++    Otherwise created dedicated memory will not be suitable for aliasing resources, resulting in Vulkan Validation Layer errors.
++    */
++    VMA_ALLOCATION_CREATE_CAN_ALIAS_BIT = 0x00000200,
++    /**
++    Requests possibility to map the allocation (using vmaMapMemory() or #VMA_ALLOCATION_CREATE_MAPPED_BIT).
++    
++    - If you use #VMA_MEMORY_USAGE_AUTO or other `VMA_MEMORY_USAGE_AUTO*` value,
++      you must use this flag to be able to map the allocation. Otherwise, mapping is incorrect.
++    - If you use other value of #VmaMemoryUsage, this flag is ignored and mapping is always possible in memory types that are `HOST_VISIBLE`.
++      This includes allocations created in \ref custom_memory_pools.
++
++    Declares that mapped memory will only be written sequentially, e.g. using `memcpy()` or a loop writing number-by-number,
++    never read or accessed randomly, so a memory type can be selected that is uncached and write-combined.
++
++    \warning Violating this declaration may work correctly, but will likely be very slow.
++    Watch out for implicit reads introduced by doing e.g. `pMappedData[i] += x;`
++    Better prepare your data in a local variable and `memcpy()` it to the mapped pointer all at once.
++    */
++    VMA_ALLOCATION_CREATE_HOST_ACCESS_SEQUENTIAL_WRITE_BIT = 0x00000400,
++    /**
++    Requests possibility to map the allocation (using vmaMapMemory() or #VMA_ALLOCATION_CREATE_MAPPED_BIT).
++    
++    - If you use #VMA_MEMORY_USAGE_AUTO or other `VMA_MEMORY_USAGE_AUTO*` value,
++      you must use this flag to be able to map the allocation. Otherwise, mapping is incorrect.
++    - If you use other value of #VmaMemoryUsage, this flag is ignored and mapping is always possible in memory types that are `HOST_VISIBLE`.
++      This includes allocations created in \ref custom_memory_pools.
++
++    Declares that mapped memory can be read, written, and accessed in random order,
++    so a `HOST_CACHED` memory type is required.
++    */
++    VMA_ALLOCATION_CREATE_HOST_ACCESS_RANDOM_BIT = 0x00000800,
++    /**
++    Together with #VMA_ALLOCATION_CREATE_HOST_ACCESS_SEQUENTIAL_WRITE_BIT or #VMA_ALLOCATION_CREATE_HOST_ACCESS_RANDOM_BIT,
++    it says that despite request for host access, a not-`HOST_VISIBLE` memory type can be selected
++    if it may improve performance.
++
++    By using this flag, you declare that you will check if the allocation ended up in a `HOST_VISIBLE` memory type
++    (e.g. using vmaGetAllocationMemoryProperties()) and if not, you will create some "staging" buffer and
++    issue an explicit transfer to write/read your data.
++    To prepare for this possibility, don't forget to add appropriate flags like
++    `VK_BUFFER_USAGE_TRANSFER_DST_BIT`, `VK_BUFFER_USAGE_TRANSFER_SRC_BIT` to the parameters of created buffer or image.
++    */
++    VMA_ALLOCATION_CREATE_HOST_ACCESS_ALLOW_TRANSFER_INSTEAD_BIT = 0x00001000,
++    /** Allocation strategy that chooses smallest possible free range for the allocation
++    to minimize memory usage and fragmentation, possibly at the expense of allocation time.
++    */
++    VMA_ALLOCATION_CREATE_STRATEGY_MIN_MEMORY_BIT = 0x00010000,
++    /** Allocation strategy that chooses first suitable free range for the allocation -
++    not necessarily in terms of the smallest offset but the one that is easiest and fastest to find
++    to minimize allocation time, possibly at the expense of allocation quality.
++    */
++    VMA_ALLOCATION_CREATE_STRATEGY_MIN_TIME_BIT = 0x00020000,
++    /** Allocation strategy that chooses always the lowest offset in available space.
++    This is not the most efficient strategy but achieves highly packed data.
++    Used internally by defragmentation, not recomended in typical usage.
++    */
++    VMA_ALLOCATION_CREATE_STRATEGY_MIN_OFFSET_BIT  = 0x00040000,
++    /** Alias to #VMA_ALLOCATION_CREATE_STRATEGY_MIN_MEMORY_BIT.
++    */
++    VMA_ALLOCATION_CREATE_STRATEGY_BEST_FIT_BIT = VMA_ALLOCATION_CREATE_STRATEGY_MIN_MEMORY_BIT,
++    /** Alias to #VMA_ALLOCATION_CREATE_STRATEGY_MIN_TIME_BIT.
++    */
++    VMA_ALLOCATION_CREATE_STRATEGY_FIRST_FIT_BIT = VMA_ALLOCATION_CREATE_STRATEGY_MIN_TIME_BIT,
++    /** A bit mask to extract only `STRATEGY` bits from entire set of flags.
++    */
++    VMA_ALLOCATION_CREATE_STRATEGY_MASK =
++        VMA_ALLOCATION_CREATE_STRATEGY_MIN_MEMORY_BIT |
++        VMA_ALLOCATION_CREATE_STRATEGY_MIN_TIME_BIT |
++        VMA_ALLOCATION_CREATE_STRATEGY_MIN_OFFSET_BIT,
++
++    VMA_ALLOCATION_CREATE_FLAG_BITS_MAX_ENUM = 0x7FFFFFFF
++} VmaAllocationCreateFlagBits;
++/// See #VmaAllocationCreateFlagBits.
++typedef VkFlags VmaAllocationCreateFlags;
++
++/// Flags to be passed as VmaPoolCreateInfo::flags.
++typedef enum VmaPoolCreateFlagBits
++{
++    /** \brief Use this flag if you always allocate only buffers and linear images or only optimal images out of this pool and so Buffer-Image Granularity can be ignored.
++
++    This is an optional optimization flag.
++
++    If you always allocate using vmaCreateBuffer(), vmaCreateImage(),
++    vmaAllocateMemoryForBuffer(), then you don't need to use it because allocator
++    knows exact type of your allocations so it can handle Buffer-Image Granularity
++    in the optimal way.
++
++    If you also allocate using vmaAllocateMemoryForImage() or vmaAllocateMemory(),
++    exact type of such allocations is not known, so allocator must be conservative
++    in handling Buffer-Image Granularity, which can lead to suboptimal allocation
++    (wasted memory). In that case, if you can make sure you always allocate only
++    buffers and linear images or only optimal images out of this pool, use this flag
++    to make allocator disregard Buffer-Image Granularity and so make allocations
++    faster and more optimal.
++    */
++    VMA_POOL_CREATE_IGNORE_BUFFER_IMAGE_GRANULARITY_BIT = 0x00000002,
++
++    /** \brief Enables alternative, linear allocation algorithm in this pool.
++
++    Specify this flag to enable linear allocation algorithm, which always creates
++    new allocations after last one and doesn't reuse space from allocations freed in
++    between. It trades memory consumption for simplified algorithm and data
++    structure, which has better performance and uses less memory for metadata.
++
++    By using this flag, you can achieve behavior of free-at-once, stack,
++    ring buffer, and double stack.
++    For details, see documentation chapter \ref linear_algorithm.
++    */
++    VMA_POOL_CREATE_LINEAR_ALGORITHM_BIT = 0x00000004,
++
++    /** Bit mask to extract only `ALGORITHM` bits from entire set of flags.
++    */
++    VMA_POOL_CREATE_ALGORITHM_MASK =
++        VMA_POOL_CREATE_LINEAR_ALGORITHM_BIT,
++
++    VMA_POOL_CREATE_FLAG_BITS_MAX_ENUM = 0x7FFFFFFF
++} VmaPoolCreateFlagBits;
++/// Flags to be passed as VmaPoolCreateInfo::flags. See #VmaPoolCreateFlagBits.
++typedef VkFlags VmaPoolCreateFlags;
++
++/// Flags to be passed as VmaDefragmentationInfo::flags.
++typedef enum VmaDefragmentationFlagBits
++{
++    /* \brief Use simple but fast algorithm for defragmentation.
++    May not achieve best results but will require least time to compute and least allocations to copy.
++    */
++    VMA_DEFRAGMENTATION_FLAG_ALGORITHM_FAST_BIT = 0x1,
++    /* \brief Default defragmentation algorithm, applied also when no `ALGORITHM` flag is specified.
++    Offers a balance between defragmentation quality and the amount of allocations and bytes that need to be moved.
++    */
++    VMA_DEFRAGMENTATION_FLAG_ALGORITHM_BALANCED_BIT = 0x2,
++    /* \brief Perform full defragmentation of memory.
++    Can result in notably more time to compute and allocations to copy, but will achieve best memory packing.
++    */
++    VMA_DEFRAGMENTATION_FLAG_ALGORITHM_FULL_BIT = 0x4,
++    /** \brief Use the most roboust algorithm at the cost of time to compute and number of copies to make.
++    Only available when bufferImageGranularity is greater than 1, since it aims to reduce
++    alignment issues between different types of resources.
++    Otherwise falls back to same behavior as #VMA_DEFRAGMENTATION_FLAG_ALGORITHM_FULL_BIT.
++    */
++    VMA_DEFRAGMENTATION_FLAG_ALGORITHM_EXTENSIVE_BIT = 0x8,
++
++    /// A bit mask to extract only `ALGORITHM` bits from entire set of flags.
++    VMA_DEFRAGMENTATION_FLAG_ALGORITHM_MASK = 
++        VMA_DEFRAGMENTATION_FLAG_ALGORITHM_FAST_BIT |
++        VMA_DEFRAGMENTATION_FLAG_ALGORITHM_BALANCED_BIT |
++        VMA_DEFRAGMENTATION_FLAG_ALGORITHM_FULL_BIT |
++        VMA_DEFRAGMENTATION_FLAG_ALGORITHM_EXTENSIVE_BIT,
++
++    VMA_DEFRAGMENTATION_FLAG_BITS_MAX_ENUM = 0x7FFFFFFF
++} VmaDefragmentationFlagBits;
++/// See #VmaDefragmentationFlagBits.
++typedef VkFlags VmaDefragmentationFlags;
++
++/// Operation performed on single defragmentation move. See structure #VmaDefragmentationMove.
++typedef enum VmaDefragmentationMoveOperation
++{
++    /// Buffer/image has been recreated at `dstTmpAllocation`, data has been copied, old buffer/image has been destroyed. `srcAllocation` should be changed to point to the new place. This is the default value set by vmaBeginDefragmentationPass().
++    VMA_DEFRAGMENTATION_MOVE_OPERATION_COPY = 0,
++    /// Set this value if you cannot move the allocation. New place reserved at `dstTmpAllocation` will be freed. `srcAllocation` will remain unchanged.
++    VMA_DEFRAGMENTATION_MOVE_OPERATION_IGNORE = 1,
++    /// Set this value if you decide to abandon the allocation and you destroyed the buffer/image. New place reserved at `dstTmpAllocation` will be freed, along with `srcAllocation`, which will be destroyed.
++    VMA_DEFRAGMENTATION_MOVE_OPERATION_DESTROY = 2,
++} VmaDefragmentationMoveOperation;
++
++/** @} */
++
++/**
++\addtogroup group_virtual
++@{
++*/
++
++/// Flags to be passed as VmaVirtualBlockCreateInfo::flags.
++typedef enum VmaVirtualBlockCreateFlagBits
++{
++    /** \brief Enables alternative, linear allocation algorithm in this virtual block.
++
++    Specify this flag to enable linear allocation algorithm, which always creates
++    new allocations after last one and doesn't reuse space from allocations freed in
++    between. It trades memory consumption for simplified algorithm and data
++    structure, which has better performance and uses less memory for metadata.
++
++    By using this flag, you can achieve behavior of free-at-once, stack,
++    ring buffer, and double stack.
++    For details, see documentation chapter \ref linear_algorithm.
++    */
++    VMA_VIRTUAL_BLOCK_CREATE_LINEAR_ALGORITHM_BIT = 0x00000001,
++
++    /** \brief Bit mask to extract only `ALGORITHM` bits from entire set of flags.
++    */
++    VMA_VIRTUAL_BLOCK_CREATE_ALGORITHM_MASK =
++        VMA_VIRTUAL_BLOCK_CREATE_LINEAR_ALGORITHM_BIT,
++
++    VMA_VIRTUAL_BLOCK_CREATE_FLAG_BITS_MAX_ENUM = 0x7FFFFFFF
++} VmaVirtualBlockCreateFlagBits;
++/// Flags to be passed as VmaVirtualBlockCreateInfo::flags. See #VmaVirtualBlockCreateFlagBits.
++typedef VkFlags VmaVirtualBlockCreateFlags;
++
++/// Flags to be passed as VmaVirtualAllocationCreateInfo::flags.
++typedef enum VmaVirtualAllocationCreateFlagBits
++{
++    /** \brief Allocation will be created from upper stack in a double stack pool.
++
++    This flag is only allowed for virtual blocks created with #VMA_VIRTUAL_BLOCK_CREATE_LINEAR_ALGORITHM_BIT flag.
++    */
++    VMA_VIRTUAL_ALLOCATION_CREATE_UPPER_ADDRESS_BIT = VMA_ALLOCATION_CREATE_UPPER_ADDRESS_BIT,
++    /** \brief Allocation strategy that tries to minimize memory usage.
++    */
++    VMA_VIRTUAL_ALLOCATION_CREATE_STRATEGY_MIN_MEMORY_BIT = VMA_ALLOCATION_CREATE_STRATEGY_MIN_MEMORY_BIT,
++    /** \brief Allocation strategy that tries to minimize allocation time.
++    */
++    VMA_VIRTUAL_ALLOCATION_CREATE_STRATEGY_MIN_TIME_BIT = VMA_ALLOCATION_CREATE_STRATEGY_MIN_TIME_BIT,
++    /** Allocation strategy that chooses always the lowest offset in available space.
++    This is not the most efficient strategy but achieves highly packed data.
++    */
++    VMA_VIRTUAL_ALLOCATION_CREATE_STRATEGY_MIN_OFFSET_BIT = VMA_ALLOCATION_CREATE_STRATEGY_MIN_OFFSET_BIT,
++    /** \brief A bit mask to extract only `STRATEGY` bits from entire set of flags.
++
++    These strategy flags are binary compatible with equivalent flags in #VmaAllocationCreateFlagBits.
++    */
++    VMA_VIRTUAL_ALLOCATION_CREATE_STRATEGY_MASK = VMA_ALLOCATION_CREATE_STRATEGY_MASK,
++
++    VMA_VIRTUAL_ALLOCATION_CREATE_FLAG_BITS_MAX_ENUM = 0x7FFFFFFF
++} VmaVirtualAllocationCreateFlagBits;
++/// Flags to be passed as VmaVirtualAllocationCreateInfo::flags. See #VmaVirtualAllocationCreateFlagBits.
++typedef VkFlags VmaVirtualAllocationCreateFlags;
++
++/** @} */
++
++#endif // _VMA_ENUM_DECLARATIONS
++
++#ifndef _VMA_DATA_TYPES_DECLARATIONS
++
++/**
++\addtogroup group_init
++@{ */
++
++/** \struct VmaAllocator
++\brief Represents main object of this library initialized.
++
++Fill structure #VmaAllocatorCreateInfo and call function vmaCreateAllocator() to create it.
++Call function vmaDestroyAllocator() to destroy it.
++
++It is recommended to create just one object of this type per `VkDevice` object,
++right after Vulkan is initialized and keep it alive until before Vulkan device is destroyed.
++*/
++VK_DEFINE_HANDLE(VmaAllocator)
++
++/** @} */
++
++/**
++\addtogroup group_alloc
++@{
++*/
++
++/** \struct VmaPool
++\brief Represents custom memory pool
++
++Fill structure VmaPoolCreateInfo and call function vmaCreatePool() to create it.
++Call function vmaDestroyPool() to destroy it.
++
++For more information see [Custom memory pools](@ref choosing_memory_type_custom_memory_pools).
++*/
++VK_DEFINE_HANDLE(VmaPool)
++
++/** \struct VmaAllocation
++\brief Represents single memory allocation.
++
++It may be either dedicated block of `VkDeviceMemory` or a specific region of a bigger block of this type
++plus unique offset.
++
++There are multiple ways to create such object.
++You need to fill structure VmaAllocationCreateInfo.
++For more information see [Choosing memory type](@ref choosing_memory_type).
++
++Although the library provides convenience functions that create Vulkan buffer or image,
++allocate memory for it and bind them together,
++binding of the allocation to a buffer or an image is out of scope of the allocation itself.
++Allocation object can exist without buffer/image bound,
++binding can be done manually by the user, and destruction of it can be done
++independently of destruction of the allocation.
++
++The object also remembers its size and some other information.
++To retrieve this information, use function vmaGetAllocationInfo() and inspect
++returned structure VmaAllocationInfo.
++*/
++VK_DEFINE_HANDLE(VmaAllocation)
++
++/** \struct VmaDefragmentationContext
++\brief An opaque object that represents started defragmentation process.
++
++Fill structure #VmaDefragmentationInfo and call function vmaBeginDefragmentation() to create it.
++Call function vmaEndDefragmentation() to destroy it.
++*/
++VK_DEFINE_HANDLE(VmaDefragmentationContext)
++
++/** @} */
++
++/**
++\addtogroup group_virtual
++@{
++*/
++
++/** \struct VmaVirtualAllocation
++\brief Represents single memory allocation done inside VmaVirtualBlock.
++
++Use it as a unique identifier to virtual allocation within the single block.
++
++Use value `VK_NULL_HANDLE` to represent a null/invalid allocation.
++*/
++VK_DEFINE_NON_DISPATCHABLE_HANDLE(VmaVirtualAllocation);
++
++/** @} */
++
++/**
++\addtogroup group_virtual
++@{
++*/
++
++/** \struct VmaVirtualBlock
++\brief Handle to a virtual block object that allows to use core allocation algorithm without allocating any real GPU memory.
++
++Fill in #VmaVirtualBlockCreateInfo structure and use vmaCreateVirtualBlock() to create it. Use vmaDestroyVirtualBlock() to destroy it.
++For more information, see documentation chapter \ref virtual_allocator.
++
++This object is not thread-safe - should not be used from multiple threads simultaneously, must be synchronized externally.
++*/
++VK_DEFINE_HANDLE(VmaVirtualBlock)
++
++/** @} */
++
++/**
++\addtogroup group_init
++@{
++*/
++
++/// Callback function called after successful vkAllocateMemory.
++typedef void (VKAPI_PTR* PFN_vmaAllocateDeviceMemoryFunction)(
++    VmaAllocator VMA_NOT_NULL                    allocator,
++    uint32_t                                     memoryType,
++    VkDeviceMemory VMA_NOT_NULL_NON_DISPATCHABLE memory,
++    VkDeviceSize                                 size,
++    void* VMA_NULLABLE                           pUserData);
++
++/// Callback function called before vkFreeMemory.
++typedef void (VKAPI_PTR* PFN_vmaFreeDeviceMemoryFunction)(
++    VmaAllocator VMA_NOT_NULL                    allocator,
++    uint32_t                                     memoryType,
++    VkDeviceMemory VMA_NOT_NULL_NON_DISPATCHABLE memory,
++    VkDeviceSize                                 size,
++    void* VMA_NULLABLE                           pUserData);
++
++/** \brief Set of callbacks that the library will call for `vkAllocateMemory` and `vkFreeMemory`.
++
++Provided for informative purpose, e.g. to gather statistics about number of
++allocations or total amount of memory allocated in Vulkan.
++
++Used in VmaAllocatorCreateInfo::pDeviceMemoryCallbacks.
++*/
++typedef struct VmaDeviceMemoryCallbacks
++{
++    /// Optional, can be null.
++    PFN_vmaAllocateDeviceMemoryFunction VMA_NULLABLE pfnAllocate;
++    /// Optional, can be null.
++    PFN_vmaFreeDeviceMemoryFunction VMA_NULLABLE pfnFree;
++    /// Optional, can be null.
++    void* VMA_NULLABLE pUserData;
++} VmaDeviceMemoryCallbacks;
++
++/** \brief Pointers to some Vulkan functions - a subset used by the library.
++
++Used in VmaAllocatorCreateInfo::pVulkanFunctions.
++*/
++typedef struct VmaVulkanFunctions
++{
++    /// Required when using VMA_DYNAMIC_VULKAN_FUNCTIONS.
++    PFN_vkGetInstanceProcAddr VMA_NULLABLE vkGetInstanceProcAddr;
++    /// Required when using VMA_DYNAMIC_VULKAN_FUNCTIONS.
++    PFN_vkGetDeviceProcAddr VMA_NULLABLE vkGetDeviceProcAddr;
++    PFN_vkGetPhysicalDeviceProperties VMA_NULLABLE vkGetPhysicalDeviceProperties;
++    PFN_vkGetPhysicalDeviceMemoryProperties VMA_NULLABLE vkGetPhysicalDeviceMemoryProperties;
++    PFN_vkAllocateMemory VMA_NULLABLE vkAllocateMemory;
++    PFN_vkFreeMemory VMA_NULLABLE vkFreeMemory;
++    PFN_vkMapMemory VMA_NULLABLE vkMapMemory;
++    PFN_vkUnmapMemory VMA_NULLABLE vkUnmapMemory;
++    PFN_vkFlushMappedMemoryRanges VMA_NULLABLE vkFlushMappedMemoryRanges;
++    PFN_vkInvalidateMappedMemoryRanges VMA_NULLABLE vkInvalidateMappedMemoryRanges;
++    PFN_vkBindBufferMemory VMA_NULLABLE vkBindBufferMemory;
++    PFN_vkBindImageMemory VMA_NULLABLE vkBindImageMemory;
++    PFN_vkGetBufferMemoryRequirements VMA_NULLABLE vkGetBufferMemoryRequirements;
++    PFN_vkGetImageMemoryRequirements VMA_NULLABLE vkGetImageMemoryRequirements;
++    PFN_vkCreateBuffer VMA_NULLABLE vkCreateBuffer;
++    PFN_vkDestroyBuffer VMA_NULLABLE vkDestroyBuffer;
++    PFN_vkCreateImage VMA_NULLABLE vkCreateImage;
++    PFN_vkDestroyImage VMA_NULLABLE vkDestroyImage;
++    PFN_vkCmdCopyBuffer VMA_NULLABLE vkCmdCopyBuffer;
++#if VMA_DEDICATED_ALLOCATION || VMA_VULKAN_VERSION >= 1001000
++    /// Fetch "vkGetBufferMemoryRequirements2" on Vulkan >= 1.1, fetch "vkGetBufferMemoryRequirements2KHR" when using VK_KHR_dedicated_allocation extension.
++    PFN_vkGetBufferMemoryRequirements2KHR VMA_NULLABLE vkGetBufferMemoryRequirements2KHR;
++    /// Fetch "vkGetImageMemoryRequirements 2" on Vulkan >= 1.1, fetch "vkGetImageMemoryRequirements2KHR" when using VK_KHR_dedicated_allocation extension.
++    PFN_vkGetImageMemoryRequirements2KHR VMA_NULLABLE vkGetImageMemoryRequirements2KHR;
++#endif
++#if VMA_BIND_MEMORY2 || VMA_VULKAN_VERSION >= 1001000
++    /// Fetch "vkBindBufferMemory2" on Vulkan >= 1.1, fetch "vkBindBufferMemory2KHR" when using VK_KHR_bind_memory2 extension.
++    PFN_vkBindBufferMemory2KHR VMA_NULLABLE vkBindBufferMemory2KHR;
++    /// Fetch "vkBindImageMemory2" on Vulkan >= 1.1, fetch "vkBindImageMemory2KHR" when using VK_KHR_bind_memory2 extension.
++    PFN_vkBindImageMemory2KHR VMA_NULLABLE vkBindImageMemory2KHR;
++#endif
++#if VMA_MEMORY_BUDGET || VMA_VULKAN_VERSION >= 1001000
++    PFN_vkGetPhysicalDeviceMemoryProperties2KHR VMA_NULLABLE vkGetPhysicalDeviceMemoryProperties2KHR;
++#endif
++#if VMA_VULKAN_VERSION >= 1003000
++    /// Fetch from "vkGetDeviceBufferMemoryRequirements" on Vulkan >= 1.3, but you can also fetch it from "vkGetDeviceBufferMemoryRequirementsKHR" if you enabled extension VK_KHR_maintenance4.
++    PFN_vkGetDeviceBufferMemoryRequirements VMA_NULLABLE vkGetDeviceBufferMemoryRequirements;
++    /// Fetch from "vkGetDeviceImageMemoryRequirements" on Vulkan >= 1.3, but you can also fetch it from "vkGetDeviceImageMemoryRequirementsKHR" if you enabled extension VK_KHR_maintenance4.
++    PFN_vkGetDeviceImageMemoryRequirements VMA_NULLABLE vkGetDeviceImageMemoryRequirements;
++#endif
++} VmaVulkanFunctions;
++
++/// Description of a Allocator to be created.
++typedef struct VmaAllocatorCreateInfo
++{
++    /// Flags for created allocator. Use #VmaAllocatorCreateFlagBits enum.
++    VmaAllocatorCreateFlags flags;
++    /// Vulkan physical device.
++    /** It must be valid throughout whole lifetime of created allocator. */
++    VkPhysicalDevice VMA_NOT_NULL physicalDevice;
++    /// Vulkan device.
++    /** It must be valid throughout whole lifetime of created allocator. */
++    VkDevice VMA_NOT_NULL device;
++    /// Preferred size of a single `VkDeviceMemory` block to be allocated from large heaps > 1 GiB. Optional.
++    /** Set to 0 to use default, which is currently 256 MiB. */
++    VkDeviceSize preferredLargeHeapBlockSize;
++    /// Custom CPU memory allocation callbacks. Optional.
++    /** Optional, can be null. When specified, will also be used for all CPU-side memory allocations. */
++    const VkAllocationCallbacks* VMA_NULLABLE pAllocationCallbacks;
++    /// Informative callbacks for `vkAllocateMemory`, `vkFreeMemory`. Optional.
++    /** Optional, can be null. */
++    const VmaDeviceMemoryCallbacks* VMA_NULLABLE pDeviceMemoryCallbacks;
++    /** \brief Either null or a pointer to an array of limits on maximum number of bytes that can be allocated out of particular Vulkan memory heap.
++
++    If not NULL, it must be a pointer to an array of
++    `VkPhysicalDeviceMemoryProperties::memoryHeapCount` elements, defining limit on
++    maximum number of bytes that can be allocated out of particular Vulkan memory
++    heap.
++
++    Any of the elements may be equal to `VK_WHOLE_SIZE`, which means no limit on that
++    heap. This is also the default in case of `pHeapSizeLimit` = NULL.
++
++    If there is a limit defined for a heap:
++
++    - If user tries to allocate more memory from that heap using this allocator,
++      the allocation fails with `VK_ERROR_OUT_OF_DEVICE_MEMORY`.
++    - If the limit is smaller than heap size reported in `VkMemoryHeap::size`, the
++      value of this limit will be reported instead when using vmaGetMemoryProperties().
++
++    Warning! Using this feature may not be equivalent to installing a GPU with
++    smaller amount of memory, because graphics driver doesn't necessary fail new
++    allocations with `VK_ERROR_OUT_OF_DEVICE_MEMORY` result when memory capacity is
++    exceeded. It may return success and just silently migrate some device memory
++    blocks to system RAM. This driver behavior can also be controlled using
++    VK_AMD_memory_overallocation_behavior extension.
++    */
++    const VkDeviceSize* VMA_NULLABLE VMA_LEN_IF_NOT_NULL("VkPhysicalDeviceMemoryProperties::memoryHeapCount") pHeapSizeLimit;
++
++    /** \brief Pointers to Vulkan functions. Can be null.
++
++    For details see [Pointers to Vulkan functions](@ref config_Vulkan_functions).
++    */
++    const VmaVulkanFunctions* VMA_NULLABLE pVulkanFunctions;
++    /** \brief Handle to Vulkan instance object.
++
++    Starting from version 3.0.0 this member is no longer optional, it must be set!
++    */
++    VkInstance VMA_NOT_NULL instance;
++    /** \brief Optional. The highest version of Vulkan that the application is designed to use.
++
++    It must be a value in the format as created by macro `VK_MAKE_VERSION` or a constant like: `VK_API_VERSION_1_1`, `VK_API_VERSION_1_0`.
++    The patch version number specified is ignored. Only the major and minor versions are considered.
++    It must be less or equal (preferably equal) to value as passed to `vkCreateInstance` as `VkApplicationInfo::apiVersion`.
++    Only versions 1.0, 1.1, 1.2, 1.3 are supported by the current implementation.
++    Leaving it initialized to zero is equivalent to `VK_API_VERSION_1_0`.
++    */
++    uint32_t vulkanApiVersion;
++#if VMA_EXTERNAL_MEMORY
++    /** \brief Either null or a pointer to an array of external memory handle types for each Vulkan memory type.
++
++    If not NULL, it must be a pointer to an array of `VkPhysicalDeviceMemoryProperties::memoryTypeCount`
++    elements, defining external memory handle types of particular Vulkan memory type,
++    to be passed using `VkExportMemoryAllocateInfoKHR`.
++
++    Any of the elements may be equal to 0, which means not to use `VkExportMemoryAllocateInfoKHR` on this memory type.
++    This is also the default in case of `pTypeExternalMemoryHandleTypes` = NULL.
++    */
++    const VkExternalMemoryHandleTypeFlagsKHR* VMA_NULLABLE VMA_LEN_IF_NOT_NULL("VkPhysicalDeviceMemoryProperties::memoryTypeCount") pTypeExternalMemoryHandleTypes;
++#endif // #if VMA_EXTERNAL_MEMORY
++} VmaAllocatorCreateInfo;
++
++/// Information about existing #VmaAllocator object.
++typedef struct VmaAllocatorInfo
++{
++    /** \brief Handle to Vulkan instance object.
++
++    This is the same value as has been passed through VmaAllocatorCreateInfo::instance.
++    */
++    VkInstance VMA_NOT_NULL instance;
++    /** \brief Handle to Vulkan physical device object.
++
++    This is the same value as has been passed through VmaAllocatorCreateInfo::physicalDevice.
++    */
++    VkPhysicalDevice VMA_NOT_NULL physicalDevice;
++    /** \brief Handle to Vulkan device object.
++
++    This is the same value as has been passed through VmaAllocatorCreateInfo::device.
++    */
++    VkDevice VMA_NOT_NULL device;
++} VmaAllocatorInfo;
++
++/** @} */
++
++/**
++\addtogroup group_stats
++@{
++*/
++
++/** \brief Calculated statistics of memory usage e.g. in a specific memory type, heap, custom pool, or total.
++
++These are fast to calculate.
++See functions: vmaGetHeapBudgets(), vmaGetPoolStatistics().
++*/
++typedef struct VmaStatistics
++{
++    /** \brief Number of `VkDeviceMemory` objects - Vulkan memory blocks allocated.
++    */
++    uint32_t blockCount;
++    /** \brief Number of #VmaAllocation objects allocated.
++    
++    Dedicated allocations have their own blocks, so each one adds 1 to `allocationCount` as well as `blockCount`.
++    */
++    uint32_t allocationCount;
++    /** \brief Number of bytes allocated in `VkDeviceMemory` blocks.
++    
++    \note To avoid confusion, please be aware that what Vulkan calls an "allocation" - a whole `VkDeviceMemory` object
++    (e.g. as in `VkPhysicalDeviceLimits::maxMemoryAllocationCount`) is called a "block" in VMA, while VMA calls
++    "allocation" a #VmaAllocation object that represents a memory region sub-allocated from such block, usually for a single buffer or image.
++    */
++    VkDeviceSize blockBytes;
++    /** \brief Total number of bytes occupied by all #VmaAllocation objects.
++    
++    Always less or equal than `blockBytes`.
++    Difference `(blockBytes - allocationBytes)` is the amount of memory allocated from Vulkan
++    but unused by any #VmaAllocation.
++    */
++    VkDeviceSize allocationBytes;
++} VmaStatistics;
++
++/** \brief More detailed statistics than #VmaStatistics.
++
++These are slower to calculate. Use for debugging purposes.
++See functions: vmaCalculateStatistics(), vmaCalculatePoolStatistics().
++
++Previous version of the statistics API provided averages, but they have been removed
++because they can be easily calculated as:
++
++\code
++VkDeviceSize allocationSizeAvg = detailedStats.statistics.allocationBytes / detailedStats.statistics.allocationCount;
++VkDeviceSize unusedBytes = detailedStats.statistics.blockBytes - detailedStats.statistics.allocationBytes;
++VkDeviceSize unusedRangeSizeAvg = unusedBytes / detailedStats.unusedRangeCount;
++\endcode
++*/
++typedef struct VmaDetailedStatistics
++{
++    /// Basic statistics.
++    VmaStatistics statistics;
++    /// Number of free ranges of memory between allocations.
++    uint32_t unusedRangeCount;
++    /// Smallest allocation size. `VK_WHOLE_SIZE` if there are 0 allocations.
++    VkDeviceSize allocationSizeMin;
++    /// Largest allocation size. 0 if there are 0 allocations.
++    VkDeviceSize allocationSizeMax;
++    /// Smallest empty range size. `VK_WHOLE_SIZE` if there are 0 empty ranges.
++    VkDeviceSize unusedRangeSizeMin;
++    /// Largest empty range size. 0 if there are 0 empty ranges.
++    VkDeviceSize unusedRangeSizeMax;
++} VmaDetailedStatistics;
++
++/** \brief  General statistics from current state of the Allocator -
++total memory usage across all memory heaps and types.
++
++These are slower to calculate. Use for debugging purposes.
++See function vmaCalculateStatistics().
++*/
++typedef struct VmaTotalStatistics
++{
++    VmaDetailedStatistics memoryType[VK_MAX_MEMORY_TYPES];
++    VmaDetailedStatistics memoryHeap[VK_MAX_MEMORY_HEAPS];
++    VmaDetailedStatistics total;
++} VmaTotalStatistics;
++
++/** \brief Statistics of current memory usage and available budget for a specific memory heap.
++
++These are fast to calculate.
++See function vmaGetHeapBudgets().
++*/
++typedef struct VmaBudget
++{
++    /** \brief Statistics fetched from the library.
++    */
++    VmaStatistics statistics;
++    /** \brief Estimated current memory usage of the program, in bytes.
++
++    Fetched from system using VK_EXT_memory_budget extension if enabled.
++
++    It might be different than `statistics.blockBytes` (usually higher) due to additional implicit objects
++    also occupying the memory, like swapchain, pipelines, descriptor heaps, command buffers, or
++    `VkDeviceMemory` blocks allocated outside of this library, if any.
++    */
++    VkDeviceSize usage;
++    /** \brief Estimated amount of memory available to the program, in bytes.
++
++    Fetched from system using VK_EXT_memory_budget extension if enabled.
++
++    It might be different (most probably smaller) than `VkMemoryHeap::size[heapIndex]` due to factors
++    external to the program, decided by the operating system.
++    Difference `budget - usage` is the amount of additional memory that can probably
++    be allocated without problems. Exceeding the budget may result in various problems.
++    */
++    VkDeviceSize budget;
++} VmaBudget;
++
++/** @} */
++
++/**
++\addtogroup group_alloc
++@{
++*/
++
++/** \brief Parameters of new #VmaAllocation.
++
++To be used with functions like vmaCreateBuffer(), vmaCreateImage(), and many others.
++*/
++typedef struct VmaAllocationCreateInfo
++{
++    /// Use #VmaAllocationCreateFlagBits enum.
++    VmaAllocationCreateFlags flags;
++    /** \brief Intended usage of memory.
++
++    You can leave #VMA_MEMORY_USAGE_UNKNOWN if you specify memory requirements in other way. \n
++    If `pool` is not null, this member is ignored.
++    */
++    VmaMemoryUsage usage;
++    /** \brief Flags that must be set in a Memory Type chosen for an allocation.
++
++    Leave 0 if you specify memory requirements in other way. \n
++    If `pool` is not null, this member is ignored.*/
++    VkMemoryPropertyFlags requiredFlags;
++    /** \brief Flags that preferably should be set in a memory type chosen for an allocation.
++
++    Set to 0 if no additional flags are preferred. \n
++    If `pool` is not null, this member is ignored. */
++    VkMemoryPropertyFlags preferredFlags;
++    /** \brief Bitmask containing one bit set for every memory type acceptable for this allocation.
++
++    Value 0 is equivalent to `UINT32_MAX` - it means any memory type is accepted if
++    it meets other requirements specified by this structure, with no further
++    restrictions on memory type index. \n
++    If `pool` is not null, this member is ignored.
++    */
++    uint32_t memoryTypeBits;
++    /** \brief Pool that this allocation should be created in.
++
++    Leave `VK_NULL_HANDLE` to allocate from default pool. If not null, members:
++    `usage`, `requiredFlags`, `preferredFlags`, `memoryTypeBits` are ignored.
++    */
++    VmaPool VMA_NULLABLE pool;
++    /** \brief Custom general-purpose pointer that will be stored in #VmaAllocation, can be read as VmaAllocationInfo::pUserData and changed using vmaSetAllocationUserData().
++
++    If #VMA_ALLOCATION_CREATE_USER_DATA_COPY_STRING_BIT is used, it must be either
++    null or pointer to a null-terminated string. The string will be then copied to
++    internal buffer, so it doesn't need to be valid after allocation call.
++    */
++    void* VMA_NULLABLE pUserData;
++    /** \brief A floating-point value between 0 and 1, indicating the priority of the allocation relative to other memory allocations.
++
++    It is used only when #VMA_ALLOCATOR_CREATE_EXT_MEMORY_PRIORITY_BIT flag was used during creation of the #VmaAllocator object
++    and this allocation ends up as dedicated or is explicitly forced as dedicated using #VMA_ALLOCATION_CREATE_DEDICATED_MEMORY_BIT.
++    Otherwise, it has the priority of a memory block where it is placed and this variable is ignored.
++    */
++    float priority;
++} VmaAllocationCreateInfo;
++
++/// Describes parameter of created #VmaPool.
++typedef struct VmaPoolCreateInfo
++{
++    /** \brief Vulkan memory type index to allocate this pool from.
++    */
++    uint32_t memoryTypeIndex;
++    /** \brief Use combination of #VmaPoolCreateFlagBits.
++    */
++    VmaPoolCreateFlags flags;
++    /** \brief Size of a single `VkDeviceMemory` block to be allocated as part of this pool, in bytes. Optional.
++
++    Specify nonzero to set explicit, constant size of memory blocks used by this
++    pool.
++
++    Leave 0 to use default and let the library manage block sizes automatically.
++    Sizes of particular blocks may vary.
++    In this case, the pool will also support dedicated allocations.
++    */
++    VkDeviceSize blockSize;
++    /** \brief Minimum number of blocks to be always allocated in this pool, even if they stay empty.
++
++    Set to 0 to have no preallocated blocks and allow the pool be completely empty.
++    */
++    size_t minBlockCount;
++    /** \brief Maximum number of blocks that can be allocated in this pool. Optional.
++
++    Set to 0 to use default, which is `SIZE_MAX`, which means no limit.
++
++    Set to same value as VmaPoolCreateInfo::minBlockCount to have fixed amount of memory allocated
++    throughout whole lifetime of this pool.
++    */
++    size_t maxBlockCount;
++    /** \brief A floating-point value between 0 and 1, indicating the priority of the allocations in this pool relative to other memory allocations.
++
++    It is used only when #VMA_ALLOCATOR_CREATE_EXT_MEMORY_PRIORITY_BIT flag was used during creation of the #VmaAllocator object.
++    Otherwise, this variable is ignored.
++    */
++    float priority;
++    /** \brief Additional minimum alignment to be used for all allocations created from this pool. Can be 0.
++
++    Leave 0 (default) not to impose any additional alignment. If not 0, it must be a power of two.
++    It can be useful in cases where alignment returned by Vulkan by functions like `vkGetBufferMemoryRequirements` is not enough,
++    e.g. when doing interop with OpenGL.
++    */
++    VkDeviceSize minAllocationAlignment;
++    /** \brief Additional `pNext` chain to be attached to `VkMemoryAllocateInfo` used for every allocation made by this pool. Optional.
++
++    Optional, can be null. If not null, it must point to a `pNext` chain of structures that can be attached to `VkMemoryAllocateInfo`.
++    It can be useful for special needs such as adding `VkExportMemoryAllocateInfoKHR`.
++    Structures pointed by this member must remain alive and unchanged for the whole lifetime of the custom pool.
++
++    Please note that some structures, e.g. `VkMemoryPriorityAllocateInfoEXT`, `VkMemoryDedicatedAllocateInfoKHR`,
++    can be attached automatically by this library when using other, more convenient of its features.
++    */
++    void* VMA_NULLABLE pMemoryAllocateNext;
++} VmaPoolCreateInfo;
++
++/** @} */
++
++/**
++\addtogroup group_alloc
++@{
++*/
++
++/// Parameters of #VmaAllocation objects, that can be retrieved using function vmaGetAllocationInfo().
++typedef struct VmaAllocationInfo
++{
++    /** \brief Memory type index that this allocation was allocated from.
++
++    It never changes.
++    */
++    uint32_t memoryType;
++    /** \brief Handle to Vulkan memory object.
++
++    Same memory object can be shared by multiple allocations.
++
++    It can change after the allocation is moved during \ref defragmentation.
++    */
++    VkDeviceMemory VMA_NULLABLE_NON_DISPATCHABLE deviceMemory;
++    /** \brief Offset in `VkDeviceMemory` object to the beginning of this allocation, in bytes. `(deviceMemory, offset)` pair is unique to this allocation.
++
++    You usually don't need to use this offset. If you create a buffer or an image together with the allocation using e.g. function
++    vmaCreateBuffer(), vmaCreateImage(), functions that operate on these resources refer to the beginning of the buffer or image,
++    not entire device memory block. Functions like vmaMapMemory(), vmaBindBufferMemory() also refer to the beginning of the allocation
++    and apply this offset automatically.
++
++    It can change after the allocation is moved during \ref defragmentation.
++    */
++    VkDeviceSize offset;
++    /** \brief Size of this allocation, in bytes.
++
++    It never changes.
++
++    \note Allocation size returned in this variable may be greater than the size
++    requested for the resource e.g. as `VkBufferCreateInfo::size`. Whole size of the
++    allocation is accessible for operations on memory e.g. using a pointer after
++    mapping with vmaMapMemory(), but operations on the resource e.g. using
++    `vkCmdCopyBuffer` must be limited to the size of the resource.
++    */
++    VkDeviceSize size;
++    /** \brief Pointer to the beginning of this allocation as mapped data.
++
++    If the allocation hasn't been mapped using vmaMapMemory() and hasn't been
++    created with #VMA_ALLOCATION_CREATE_MAPPED_BIT flag, this value is null.
++
++    It can change after call to vmaMapMemory(), vmaUnmapMemory().
++    It can also change after the allocation is moved during \ref defragmentation.
++    */
++    void* VMA_NULLABLE pMappedData;
++    /** \brief Custom general-purpose pointer that was passed as VmaAllocationCreateInfo::pUserData or set using vmaSetAllocationUserData().
++
++    It can change after call to vmaSetAllocationUserData() for this allocation.
++    */
++    void* VMA_NULLABLE pUserData;
++    /** \brief Custom allocation name that was set with vmaSetAllocationName().
++    
++    It can change after call to vmaSetAllocationName() for this allocation.
++    
++    Another way to set custom name is to pass it in VmaAllocationCreateInfo::pUserData with
++    additional flag #VMA_ALLOCATION_CREATE_USER_DATA_COPY_STRING_BIT set [DEPRECATED].
++    */
++    const char* VMA_NULLABLE pName;
++} VmaAllocationInfo;
++
++/** \brief Parameters for defragmentation.
++
++To be used with function vmaBeginDefragmentation().
++*/
++typedef struct VmaDefragmentationInfo
++{
++    /// \brief Use combination of #VmaDefragmentationFlagBits.
++    VmaDefragmentationFlags flags;
++    /** \brief Custom pool to be defragmented.
++
++    If null then default pools will undergo defragmentation process.
++    */
++    VmaPool VMA_NULLABLE pool;
++    /** \brief Maximum numbers of bytes that can be copied during single pass, while moving allocations to different places.
++
++    `0` means no limit.
++    */
++    VkDeviceSize maxBytesPerPass;
++    /** \brief Maximum number of allocations that can be moved during single pass to a different place.
++
++    `0` means no limit.
++    */
++    uint32_t maxAllocationsPerPass;
++} VmaDefragmentationInfo;
++
++/// Single move of an allocation to be done for defragmentation.
++typedef struct VmaDefragmentationMove
++{
++    /// Operation to be performed on the allocation by vmaEndDefragmentationPass(). Default value is #VMA_DEFRAGMENTATION_MOVE_OPERATION_COPY. You can modify it.
++    VmaDefragmentationMoveOperation operation;
++    /// Allocation that should be moved.
++    VmaAllocation VMA_NOT_NULL srcAllocation;
++    /** \brief Temporary allocation pointing to destination memory that will replace `srcAllocation`.
++    
++    \warning Do not store this allocation in your data structures! It exists only temporarily, for the duration of the defragmentation pass,
++    to be used for binding new buffer/image to the destination memory using e.g. vmaBindBufferMemory().
++    vmaEndDefragmentationPass() will destroy it and make `srcAllocation` point to this memory.
++    */
++    VmaAllocation VMA_NOT_NULL dstTmpAllocation;
++} VmaDefragmentationMove;
++
++/** \brief Parameters for incremental defragmentation steps.
++
++To be used with function vmaBeginDefragmentationPass().
++*/
++typedef struct VmaDefragmentationPassMoveInfo
++{
++    /// Number of elements in the `pMoves` array.
++    uint32_t moveCount;
++    /** \brief Array of moves to be performed by the user in the current defragmentation pass.
++    
++    Pointer to an array of `moveCount` elements, owned by VMA, created in vmaBeginDefragmentationPass(), destroyed in vmaEndDefragmentationPass().
++
++    For each element, you should:
++    
++    1. Create a new buffer/image in the place pointed by VmaDefragmentationMove::dstMemory + VmaDefragmentationMove::dstOffset.
++    2. Copy data from the VmaDefragmentationMove::srcAllocation e.g. using `vkCmdCopyBuffer`, `vkCmdCopyImage`.
++    3. Make sure these commands finished executing on the GPU.
++    4. Destroy the old buffer/image.
++    
++    Only then you can finish defragmentation pass by calling vmaEndDefragmentationPass().
++    After this call, the allocation will point to the new place in memory.
++
++    Alternatively, if you cannot move specific allocation, you can set VmaDefragmentationMove::operation to #VMA_DEFRAGMENTATION_MOVE_OPERATION_IGNORE.
++
++    Alternatively, if you decide you want to completely remove the allocation:
++
++    1. Destroy its buffer/image.
++    2. Set VmaDefragmentationMove::operation to #VMA_DEFRAGMENTATION_MOVE_OPERATION_DESTROY.
++
++    Then, after vmaEndDefragmentationPass() the allocation will be freed.
++    */
++    VmaDefragmentationMove* VMA_NULLABLE VMA_LEN_IF_NOT_NULL(moveCount) pMoves;
++} VmaDefragmentationPassMoveInfo;
++
++/// Statistics returned for defragmentation process in function vmaEndDefragmentation().
++typedef struct VmaDefragmentationStats
++{
++    /// Total number of bytes that have been copied while moving allocations to different places.
++    VkDeviceSize bytesMoved;
++    /// Total number of bytes that have been released to the system by freeing empty `VkDeviceMemory` objects.
++    VkDeviceSize bytesFreed;
++    /// Number of allocations that have been moved to different places.
++    uint32_t allocationsMoved;
++    /// Number of empty `VkDeviceMemory` objects that have been released to the system.
++    uint32_t deviceMemoryBlocksFreed;
++} VmaDefragmentationStats;
++
++/** @} */
++
++/**
++\addtogroup group_virtual
++@{
++*/
++
++/// Parameters of created #VmaVirtualBlock object to be passed to vmaCreateVirtualBlock().
++typedef struct VmaVirtualBlockCreateInfo
++{
++    /** \brief Total size of the virtual block.
++
++    Sizes can be expressed in bytes or any units you want as long as you are consistent in using them.
++    For example, if you allocate from some array of structures, 1 can mean single instance of entire structure.
++    */
++    VkDeviceSize size;
++
++    /** \brief Use combination of #VmaVirtualBlockCreateFlagBits.
++    */
++    VmaVirtualBlockCreateFlags flags;
++
++    /** \brief Custom CPU memory allocation callbacks. Optional.
++
++    Optional, can be null. When specified, they will be used for all CPU-side memory allocations.
++    */
++    const VkAllocationCallbacks* VMA_NULLABLE pAllocationCallbacks;
++} VmaVirtualBlockCreateInfo;
++
++/// Parameters of created virtual allocation to be passed to vmaVirtualAllocate().
++typedef struct VmaVirtualAllocationCreateInfo
++{
++    /** \brief Size of the allocation.
++
++    Cannot be zero.
++    */
++    VkDeviceSize size;
++    /** \brief Required alignment of the allocation. Optional.
++
++    Must be power of two. Special value 0 has the same meaning as 1 - means no special alignment is required, so allocation can start at any offset.
++    */
++    VkDeviceSize alignment;
++    /** \brief Use combination of #VmaVirtualAllocationCreateFlagBits.
++    */
++    VmaVirtualAllocationCreateFlags flags;
++    /** \brief Custom pointer to be associated with the allocation. Optional.
++
++    It can be any value and can be used for user-defined purposes. It can be fetched or changed later.
++    */
++    void* VMA_NULLABLE pUserData;
++} VmaVirtualAllocationCreateInfo;
++
++/// Parameters of an existing virtual allocation, returned by vmaGetVirtualAllocationInfo().
++typedef struct VmaVirtualAllocationInfo
++{
++    /** \brief Offset of the allocation.
++     
++    Offset at which the allocation was made.
++    */
++    VkDeviceSize offset;
++    /** \brief Size of the allocation.
++
++    Same value as passed in VmaVirtualAllocationCreateInfo::size.
++    */
++    VkDeviceSize size;
++    /** \brief Custom pointer associated with the allocation.
++
++    Same value as passed in VmaVirtualAllocationCreateInfo::pUserData or to vmaSetVirtualAllocationUserData().
++    */
++    void* VMA_NULLABLE pUserData;
++} VmaVirtualAllocationInfo;
++
++/** @} */
++
++#endif // _VMA_DATA_TYPES_DECLARATIONS
++
++#ifndef _VMA_FUNCTION_HEADERS
++
++/**
++\addtogroup group_init
++@{
++*/
++
++/// Creates #VmaAllocator object.
++VMA_CALL_PRE VkResult VMA_CALL_POST vmaCreateAllocator(
++    const VmaAllocatorCreateInfo* VMA_NOT_NULL pCreateInfo,
++    VmaAllocator VMA_NULLABLE* VMA_NOT_NULL pAllocator);
++
++/// Destroys allocator object.
++VMA_CALL_PRE void VMA_CALL_POST vmaDestroyAllocator(
++    VmaAllocator VMA_NULLABLE allocator);
++
++/** \brief Returns information about existing #VmaAllocator object - handle to Vulkan device etc.
++
++It might be useful if you want to keep just the #VmaAllocator handle and fetch other required handles to
++`VkPhysicalDevice`, `VkDevice` etc. every time using this function.
++*/
++VMA_CALL_PRE void VMA_CALL_POST vmaGetAllocatorInfo(
++    VmaAllocator VMA_NOT_NULL allocator,
++    VmaAllocatorInfo* VMA_NOT_NULL pAllocatorInfo);
++
++/**
++PhysicalDeviceProperties are fetched from physicalDevice by the allocator.
++You can access it here, without fetching it again on your own.
++*/
++VMA_CALL_PRE void VMA_CALL_POST vmaGetPhysicalDeviceProperties(
++    VmaAllocator VMA_NOT_NULL allocator,
++    const VkPhysicalDeviceProperties* VMA_NULLABLE* VMA_NOT_NULL ppPhysicalDeviceProperties);
++
++/**
++PhysicalDeviceMemoryProperties are fetched from physicalDevice by the allocator.
++You can access it here, without fetching it again on your own.
++*/
++VMA_CALL_PRE void VMA_CALL_POST vmaGetMemoryProperties(
++    VmaAllocator VMA_NOT_NULL allocator,
++    const VkPhysicalDeviceMemoryProperties* VMA_NULLABLE* VMA_NOT_NULL ppPhysicalDeviceMemoryProperties);
++
++/**
++\brief Given Memory Type Index, returns Property Flags of this memory type.
++
++This is just a convenience function. Same information can be obtained using
++vmaGetMemoryProperties().
++*/
++VMA_CALL_PRE void VMA_CALL_POST vmaGetMemoryTypeProperties(
++    VmaAllocator VMA_NOT_NULL allocator,
++    uint32_t memoryTypeIndex,
++    VkMemoryPropertyFlags* VMA_NOT_NULL pFlags);
++
++/** \brief Sets index of the current frame.
++*/
++VMA_CALL_PRE void VMA_CALL_POST vmaSetCurrentFrameIndex(
++    VmaAllocator VMA_NOT_NULL allocator,
++    uint32_t frameIndex);
++
++/** @} */
++
++/**
++\addtogroup group_stats
++@{
++*/
++
++/** \brief Retrieves statistics from current state of the Allocator.
++
++This function is called "calculate" not "get" because it has to traverse all
++internal data structures, so it may be quite slow. Use it for debugging purposes.
++For faster but more brief statistics suitable to be called every frame or every allocation,
++use vmaGetHeapBudgets().
++
++Note that when using allocator from multiple threads, returned information may immediately
++become outdated.
++*/
++VMA_CALL_PRE void VMA_CALL_POST vmaCalculateStatistics(
++    VmaAllocator VMA_NOT_NULL allocator,
++    VmaTotalStatistics* VMA_NOT_NULL pStats);
++
++/** \brief Retrieves information about current memory usage and budget for all memory heaps.
++
++\param allocator
++\param[out] pBudgets Must point to array with number of elements at least equal to number of memory heaps in physical device used.
++
++This function is called "get" not "calculate" because it is very fast, suitable to be called
++every frame or every allocation. For more detailed statistics use vmaCalculateStatistics().
++
++Note that when using allocator from multiple threads, returned information may immediately
++become outdated.
++*/
++VMA_CALL_PRE void VMA_CALL_POST vmaGetHeapBudgets(
++    VmaAllocator VMA_NOT_NULL allocator,
++    VmaBudget* VMA_NOT_NULL VMA_LEN_IF_NOT_NULL("VkPhysicalDeviceMemoryProperties::memoryHeapCount") pBudgets);
++
++/** @} */
++
++/**
++\addtogroup group_alloc
++@{
++*/
++
++/**
++\brief Helps to find memoryTypeIndex, given memoryTypeBits and VmaAllocationCreateInfo.
++
++This algorithm tries to find a memory type that:
++
++- Is allowed by memoryTypeBits.
++- Contains all the flags from pAllocationCreateInfo->requiredFlags.
++- Matches intended usage.
++- Has as many flags from pAllocationCreateInfo->preferredFlags as possible.
++
++\return Returns VK_ERROR_FEATURE_NOT_PRESENT if not found. Receiving such result
++from this function or any other allocating function probably means that your
++device doesn't support any memory type with requested features for the specific
++type of resource you want to use it for. Please check parameters of your
++resource, like image layout (OPTIMAL versus LINEAR) or mip level count.
++*/
++VMA_CALL_PRE VkResult VMA_CALL_POST vmaFindMemoryTypeIndex(
++    VmaAllocator VMA_NOT_NULL allocator,
++    uint32_t memoryTypeBits,
++    const VmaAllocationCreateInfo* VMA_NOT_NULL pAllocationCreateInfo,
++    uint32_t* VMA_NOT_NULL pMemoryTypeIndex);
++
++/**
++\brief Helps to find memoryTypeIndex, given VkBufferCreateInfo and VmaAllocationCreateInfo.
++
++It can be useful e.g. to determine value to be used as VmaPoolCreateInfo::memoryTypeIndex.
++It internally creates a temporary, dummy buffer that never has memory bound.
++*/
++VMA_CALL_PRE VkResult VMA_CALL_POST vmaFindMemoryTypeIndexForBufferInfo(
++    VmaAllocator VMA_NOT_NULL allocator,
++    const VkBufferCreateInfo* VMA_NOT_NULL pBufferCreateInfo,
++    const VmaAllocationCreateInfo* VMA_NOT_NULL pAllocationCreateInfo,
++    uint32_t* VMA_NOT_NULL pMemoryTypeIndex);
++
++/**
++\brief Helps to find memoryTypeIndex, given VkImageCreateInfo and VmaAllocationCreateInfo.
++
++It can be useful e.g. to determine value to be used as VmaPoolCreateInfo::memoryTypeIndex.
++It internally creates a temporary, dummy image that never has memory bound.
++*/
++VMA_CALL_PRE VkResult VMA_CALL_POST vmaFindMemoryTypeIndexForImageInfo(
++    VmaAllocator VMA_NOT_NULL allocator,
++    const VkImageCreateInfo* VMA_NOT_NULL pImageCreateInfo,
++    const VmaAllocationCreateInfo* VMA_NOT_NULL pAllocationCreateInfo,
++    uint32_t* VMA_NOT_NULL pMemoryTypeIndex);
++
++/** \brief Allocates Vulkan device memory and creates #VmaPool object.
++
++\param allocator Allocator object.
++\param pCreateInfo Parameters of pool to create.
++\param[out] pPool Handle to created pool.
++*/
++VMA_CALL_PRE VkResult VMA_CALL_POST vmaCreatePool(
++    VmaAllocator VMA_NOT_NULL allocator,
++    const VmaPoolCreateInfo* VMA_NOT_NULL pCreateInfo,
++    VmaPool VMA_NULLABLE* VMA_NOT_NULL pPool);
++
++/** \brief Destroys #VmaPool object and frees Vulkan device memory.
++*/
++VMA_CALL_PRE void VMA_CALL_POST vmaDestroyPool(
++    VmaAllocator VMA_NOT_NULL allocator,
++    VmaPool VMA_NULLABLE pool);
++
++/** @} */
++
++/**
++\addtogroup group_stats
++@{
++*/
++
++/** \brief Retrieves statistics of existing #VmaPool object.
++
++\param allocator Allocator object.
++\param pool Pool object.
++\param[out] pPoolStats Statistics of specified pool.
++*/
++VMA_CALL_PRE void VMA_CALL_POST vmaGetPoolStatistics(
++    VmaAllocator VMA_NOT_NULL allocator,
++    VmaPool VMA_NOT_NULL pool,
++    VmaStatistics* VMA_NOT_NULL pPoolStats);
++
++/** \brief Retrieves detailed statistics of existing #VmaPool object.
++
++\param allocator Allocator object.
++\param pool Pool object.
++\param[out] pPoolStats Statistics of specified pool.
++*/
++VMA_CALL_PRE void VMA_CALL_POST vmaCalculatePoolStatistics(
++    VmaAllocator VMA_NOT_NULL allocator,
++    VmaPool VMA_NOT_NULL pool,
++    VmaDetailedStatistics* VMA_NOT_NULL pPoolStats);
++
++/** @} */
++
++/**
++\addtogroup group_alloc
++@{
++*/
++
++/** \brief Checks magic number in margins around all allocations in given memory pool in search for corruptions.
++
++Corruption detection is enabled only when `VMA_DEBUG_DETECT_CORRUPTION` macro is defined to nonzero,
++`VMA_DEBUG_MARGIN` is defined to nonzero and the pool is created in memory type that is
++`HOST_VISIBLE` and `HOST_COHERENT`. For more information, see [Corruption detection](@ref debugging_memory_usage_corruption_detection).
++
++Possible return values:
++
++- `VK_ERROR_FEATURE_NOT_PRESENT` - corruption detection is not enabled for specified pool.
++- `VK_SUCCESS` - corruption detection has been performed and succeeded.
++- `VK_ERROR_UNKNOWN` - corruption detection has been performed and found memory corruptions around one of the allocations.
++  `VMA_ASSERT` is also fired in that case.
++- Other value: Error returned by Vulkan, e.g. memory mapping failure.
++*/
++VMA_CALL_PRE VkResult VMA_CALL_POST vmaCheckPoolCorruption(
++    VmaAllocator VMA_NOT_NULL allocator,
++    VmaPool VMA_NOT_NULL pool);
++
++/** \brief Retrieves name of a custom pool.
++
++After the call `ppName` is either null or points to an internally-owned null-terminated string
++containing name of the pool that was previously set. The pointer becomes invalid when the pool is
++destroyed or its name is changed using vmaSetPoolName().
++*/
++VMA_CALL_PRE void VMA_CALL_POST vmaGetPoolName(
++    VmaAllocator VMA_NOT_NULL allocator,
++    VmaPool VMA_NOT_NULL pool,
++    const char* VMA_NULLABLE* VMA_NOT_NULL ppName);
++
++/** \brief Sets name of a custom pool.
++
++`pName` can be either null or pointer to a null-terminated string with new name for the pool.
++Function makes internal copy of the string, so it can be changed or freed immediately after this call.
++*/
++VMA_CALL_PRE void VMA_CALL_POST vmaSetPoolName(
++    VmaAllocator VMA_NOT_NULL allocator,
++    VmaPool VMA_NOT_NULL pool,
++    const char* VMA_NULLABLE pName);
++
++/** \brief General purpose memory allocation.
++
++\param allocator
++\param pVkMemoryRequirements
++\param pCreateInfo
++\param[out] pAllocation Handle to allocated memory.
++\param[out] pAllocationInfo Optional. Information about allocated memory. It can be later fetched using function vmaGetAllocationInfo().
++
++You should free the memory using vmaFreeMemory() or vmaFreeMemoryPages().
++
++It is recommended to use vmaAllocateMemoryForBuffer(), vmaAllocateMemoryForImage(),
++vmaCreateBuffer(), vmaCreateImage() instead whenever possible.
++*/
++VMA_CALL_PRE VkResult VMA_CALL_POST vmaAllocateMemory(
++    VmaAllocator VMA_NOT_NULL allocator,
++    const VkMemoryRequirements* VMA_NOT_NULL pVkMemoryRequirements,
++    const VmaAllocationCreateInfo* VMA_NOT_NULL pCreateInfo,
++    VmaAllocation VMA_NULLABLE* VMA_NOT_NULL pAllocation,
++    VmaAllocationInfo* VMA_NULLABLE pAllocationInfo);
++
++/** \brief General purpose memory allocation for multiple allocation objects at once.
++
++\param allocator Allocator object.
++\param pVkMemoryRequirements Memory requirements for each allocation.
++\param pCreateInfo Creation parameters for each allocation.
++\param allocationCount Number of allocations to make.
++\param[out] pAllocations Pointer to array that will be filled with handles to created allocations.
++\param[out] pAllocationInfo Optional. Pointer to array that will be filled with parameters of created allocations.
++
++You should free the memory using vmaFreeMemory() or vmaFreeMemoryPages().
++
++Word "pages" is just a suggestion to use this function to allocate pieces of memory needed for sparse binding.
++It is just a general purpose allocation function able to make multiple allocations at once.
++It may be internally optimized to be more efficient than calling vmaAllocateMemory() `allocationCount` times.
++
++All allocations are made using same parameters. All of them are created out of the same memory pool and type.
++If any allocation fails, all allocations already made within this function call are also freed, so that when
++returned result is not `VK_SUCCESS`, `pAllocation` array is always entirely filled with `VK_NULL_HANDLE`.
++*/
++VMA_CALL_PRE VkResult VMA_CALL_POST vmaAllocateMemoryPages(
++    VmaAllocator VMA_NOT_NULL allocator,
++    const VkMemoryRequirements* VMA_NOT_NULL VMA_LEN_IF_NOT_NULL(allocationCount) pVkMemoryRequirements,
++    const VmaAllocationCreateInfo* VMA_NOT_NULL VMA_LEN_IF_NOT_NULL(allocationCount) pCreateInfo,
++    size_t allocationCount,
++    VmaAllocation VMA_NULLABLE* VMA_NOT_NULL VMA_LEN_IF_NOT_NULL(allocationCount) pAllocations,
++    VmaAllocationInfo* VMA_NULLABLE VMA_LEN_IF_NOT_NULL(allocationCount) pAllocationInfo);
++
++/** \brief Allocates memory suitable for given `VkBuffer`.
++
++\param allocator
++\param buffer
++\param pCreateInfo
++\param[out] pAllocation Handle to allocated memory.
++\param[out] pAllocationInfo Optional. Information about allocated memory. It can be later fetched using function vmaGetAllocationInfo().
++
++It only creates #VmaAllocation. To bind the memory to the buffer, use vmaBindBufferMemory().
++
++This is a special-purpose function. In most cases you should use vmaCreateBuffer().
++
++You must free the allocation using vmaFreeMemory() when no longer needed.
++*/
++VMA_CALL_PRE VkResult VMA_CALL_POST vmaAllocateMemoryForBuffer(
++    VmaAllocator VMA_NOT_NULL allocator,
++    VkBuffer VMA_NOT_NULL_NON_DISPATCHABLE buffer,
++    const VmaAllocationCreateInfo* VMA_NOT_NULL pCreateInfo,
++    VmaAllocation VMA_NULLABLE* VMA_NOT_NULL pAllocation,
++    VmaAllocationInfo* VMA_NULLABLE pAllocationInfo);
++
++/** \brief Allocates memory suitable for given `VkImage`.
++
++\param allocator
++\param image
++\param pCreateInfo
++\param[out] pAllocation Handle to allocated memory.
++\param[out] pAllocationInfo Optional. Information about allocated memory. It can be later fetched using function vmaGetAllocationInfo().
++
++It only creates #VmaAllocation. To bind the memory to the buffer, use vmaBindImageMemory().
++
++This is a special-purpose function. In most cases you should use vmaCreateImage().
++
++You must free the allocation using vmaFreeMemory() when no longer needed.
++*/
++VMA_CALL_PRE VkResult VMA_CALL_POST vmaAllocateMemoryForImage(
++    VmaAllocator VMA_NOT_NULL allocator,
++    VkImage VMA_NOT_NULL_NON_DISPATCHABLE image,
++    const VmaAllocationCreateInfo* VMA_NOT_NULL pCreateInfo,
++    VmaAllocation VMA_NULLABLE* VMA_NOT_NULL pAllocation,
++    VmaAllocationInfo* VMA_NULLABLE pAllocationInfo);
++
++/** \brief Frees memory previously allocated using vmaAllocateMemory(), vmaAllocateMemoryForBuffer(), or vmaAllocateMemoryForImage().
++
++Passing `VK_NULL_HANDLE` as `allocation` is valid. Such function call is just skipped.
++*/
++VMA_CALL_PRE void VMA_CALL_POST vmaFreeMemory(
++    VmaAllocator VMA_NOT_NULL allocator,
++    const VmaAllocation VMA_NULLABLE allocation);
++
++/** \brief Frees memory and destroys multiple allocations.
++
++Word "pages" is just a suggestion to use this function to free pieces of memory used for sparse binding.
++It is just a general purpose function to free memory and destroy allocations made using e.g. vmaAllocateMemory(),
++vmaAllocateMemoryPages() and other functions.
++It may be internally optimized to be more efficient than calling vmaFreeMemory() `allocationCount` times.
++
++Allocations in `pAllocations` array can come from any memory pools and types.
++Passing `VK_NULL_HANDLE` as elements of `pAllocations` array is valid. Such entries are just skipped.
++*/
++VMA_CALL_PRE void VMA_CALL_POST vmaFreeMemoryPages(
++    VmaAllocator VMA_NOT_NULL allocator,
++    size_t allocationCount,
++    const VmaAllocation VMA_NULLABLE* VMA_NOT_NULL VMA_LEN_IF_NOT_NULL(allocationCount) pAllocations);
++
++/** \brief Returns current information about specified allocation.
++
++Current paramteres of given allocation are returned in `pAllocationInfo`.
++
++Although this function doesn't lock any mutex, so it should be quite efficient,
++you should avoid calling it too often.
++You can retrieve same VmaAllocationInfo structure while creating your resource, from function
++vmaCreateBuffer(), vmaCreateImage(). You can remember it if you are sure parameters don't change
++(e.g. due to defragmentation).
++*/
++VMA_CALL_PRE void VMA_CALL_POST vmaGetAllocationInfo(
++    VmaAllocator VMA_NOT_NULL allocator,
++    VmaAllocation VMA_NOT_NULL allocation,
++    VmaAllocationInfo* VMA_NOT_NULL pAllocationInfo);
++
++/** \brief Sets pUserData in given allocation to new value.
++
++The value of pointer `pUserData` is copied to allocation's `pUserData`.
++It is opaque, so you can use it however you want - e.g.
++as a pointer, ordinal number or some handle to you own data.
++*/
++VMA_CALL_PRE void VMA_CALL_POST vmaSetAllocationUserData(
++    VmaAllocator VMA_NOT_NULL allocator,
++    VmaAllocation VMA_NOT_NULL allocation,
++    void* VMA_NULLABLE pUserData);
++
++/** \brief Sets pName in given allocation to new value.
++
++`pName` must be either null, or pointer to a null-terminated string. The function
++makes local copy of the string and sets it as allocation's `pName`. String
++passed as pName doesn't need to be valid for whole lifetime of the allocation -
++you can free it after this call. String previously pointed by allocation's
++`pName` is freed from memory.
++*/
++VMA_CALL_PRE void VMA_CALL_POST vmaSetAllocationName(
++    VmaAllocator VMA_NOT_NULL allocator,
++    VmaAllocation VMA_NOT_NULL allocation,
++    const char* VMA_NULLABLE pName);
++
++/**
++\brief Given an allocation, returns Property Flags of its memory type.
++
++This is just a convenience function. Same information can be obtained using
++vmaGetAllocationInfo() + vmaGetMemoryProperties().
++*/
++VMA_CALL_PRE void VMA_CALL_POST vmaGetAllocationMemoryProperties(
++    VmaAllocator VMA_NOT_NULL allocator,
++    VmaAllocation VMA_NOT_NULL allocation,
++    VkMemoryPropertyFlags* VMA_NOT_NULL pFlags);
++
++/** \brief Maps memory represented by given allocation and returns pointer to it.
++
++Maps memory represented by given allocation to make it accessible to CPU code.
++When succeeded, `*ppData` contains pointer to first byte of this memory.
++
++\warning
++If the allocation is part of a bigger `VkDeviceMemory` block, returned pointer is
++correctly offsetted to the beginning of region assigned to this particular allocation.
++Unlike the result of `vkMapMemory`, it points to the allocation, not to the beginning of the whole block.
++You should not add VmaAllocationInfo::offset to it!
++
++Mapping is internally reference-counted and synchronized, so despite raw Vulkan
++function `vkMapMemory()` cannot be used to map same block of `VkDeviceMemory`
++multiple times simultaneously, it is safe to call this function on allocations
++assigned to the same memory block. Actual Vulkan memory will be mapped on first
++mapping and unmapped on last unmapping.
++
++If the function succeeded, you must call vmaUnmapMemory() to unmap the
++allocation when mapping is no longer needed or before freeing the allocation, at
++the latest.
++
++It also safe to call this function multiple times on the same allocation. You
++must call vmaUnmapMemory() same number of times as you called vmaMapMemory().
++
++It is also safe to call this function on allocation created with
++#VMA_ALLOCATION_CREATE_MAPPED_BIT flag. Its memory stays mapped all the time.
++You must still call vmaUnmapMemory() same number of times as you called
++vmaMapMemory(). You must not call vmaUnmapMemory() additional time to free the
++"0-th" mapping made automatically due to #VMA_ALLOCATION_CREATE_MAPPED_BIT flag.
++
++This function fails when used on allocation made in memory type that is not
++`HOST_VISIBLE`.
++
++This function doesn't automatically flush or invalidate caches.
++If the allocation is made from a memory types that is not `HOST_COHERENT`,
++you also need to use vmaInvalidateAllocation() / vmaFlushAllocation(), as required by Vulkan specification.
++*/
++VMA_CALL_PRE VkResult VMA_CALL_POST vmaMapMemory(
++    VmaAllocator VMA_NOT_NULL allocator,
++    VmaAllocation VMA_NOT_NULL allocation,
++    void* VMA_NULLABLE* VMA_NOT_NULL ppData);
++
++/** \brief Unmaps memory represented by given allocation, mapped previously using vmaMapMemory().
++
++For details, see description of vmaMapMemory().
++
++This function doesn't automatically flush or invalidate caches.
++If the allocation is made from a memory types that is not `HOST_COHERENT`,
++you also need to use vmaInvalidateAllocation() / vmaFlushAllocation(), as required by Vulkan specification.
++*/
++VMA_CALL_PRE void VMA_CALL_POST vmaUnmapMemory(
++    VmaAllocator VMA_NOT_NULL allocator,
++    VmaAllocation VMA_NOT_NULL allocation);
++
++/** \brief Flushes memory of given allocation.
++
++Calls `vkFlushMappedMemoryRanges()` for memory associated with given range of given allocation.
++It needs to be called after writing to a mapped memory for memory types that are not `HOST_COHERENT`.
++Unmap operation doesn't do that automatically.
++
++- `offset` must be relative to the beginning of allocation.
++- `size` can be `VK_WHOLE_SIZE`. It means all memory from `offset` the the end of given allocation.
++- `offset` and `size` don't have to be aligned.
++  They are internally rounded down/up to multiply of `nonCoherentAtomSize`.
++- If `size` is 0, this call is ignored.
++- If memory type that the `allocation` belongs to is not `HOST_VISIBLE` or it is `HOST_COHERENT`,
++  this call is ignored.
++
++Warning! `offset` and `size` are relative to the contents of given `allocation`.
++If you mean whole allocation, you can pass 0 and `VK_WHOLE_SIZE`, respectively.
++Do not pass allocation's offset as `offset`!!!
++
++This function returns the `VkResult` from `vkFlushMappedMemoryRanges` if it is
++called, otherwise `VK_SUCCESS`.
++*/
++VMA_CALL_PRE VkResult VMA_CALL_POST vmaFlushAllocation(
++    VmaAllocator VMA_NOT_NULL allocator,
++    VmaAllocation VMA_NOT_NULL allocation,
++    VkDeviceSize offset,
++    VkDeviceSize size);
++
++/** \brief Invalidates memory of given allocation.
++
++Calls `vkInvalidateMappedMemoryRanges()` for memory associated with given range of given allocation.
++It needs to be called before reading from a mapped memory for memory types that are not `HOST_COHERENT`.
++Map operation doesn't do that automatically.
++
++- `offset` must be relative to the beginning of allocation.
++- `size` can be `VK_WHOLE_SIZE`. It means all memory from `offset` the the end of given allocation.
++- `offset` and `size` don't have to be aligned.
++  They are internally rounded down/up to multiply of `nonCoherentAtomSize`.
++- If `size` is 0, this call is ignored.
++- If memory type that the `allocation` belongs to is not `HOST_VISIBLE` or it is `HOST_COHERENT`,
++  this call is ignored.
++
++Warning! `offset` and `size` are relative to the contents of given `allocation`.
++If you mean whole allocation, you can pass 0 and `VK_WHOLE_SIZE`, respectively.
++Do not pass allocation's offset as `offset`!!!
++
++This function returns the `VkResult` from `vkInvalidateMappedMemoryRanges` if
++it is called, otherwise `VK_SUCCESS`.
++*/
++VMA_CALL_PRE VkResult VMA_CALL_POST vmaInvalidateAllocation(
++    VmaAllocator VMA_NOT_NULL allocator,
++    VmaAllocation VMA_NOT_NULL allocation,
++    VkDeviceSize offset,
++    VkDeviceSize size);
++
++/** \brief Flushes memory of given set of allocations.
++
++Calls `vkFlushMappedMemoryRanges()` for memory associated with given ranges of given allocations.
++For more information, see documentation of vmaFlushAllocation().
++
++\param allocator
++\param allocationCount
++\param allocations
++\param offsets If not null, it must point to an array of offsets of regions to flush, relative to the beginning of respective allocations. Null means all ofsets are zero.
++\param sizes If not null, it must point to an array of sizes of regions to flush in respective allocations. Null means `VK_WHOLE_SIZE` for all allocations.
++
++This function returns the `VkResult` from `vkFlushMappedMemoryRanges` if it is
++called, otherwise `VK_SUCCESS`.
++*/
++VMA_CALL_PRE VkResult VMA_CALL_POST vmaFlushAllocations(
++    VmaAllocator VMA_NOT_NULL allocator,
++    uint32_t allocationCount,
++    const VmaAllocation VMA_NOT_NULL* VMA_NULLABLE VMA_LEN_IF_NOT_NULL(allocationCount) allocations,
++    const VkDeviceSize* VMA_NULLABLE VMA_LEN_IF_NOT_NULL(allocationCount) offsets,
++    const VkDeviceSize* VMA_NULLABLE VMA_LEN_IF_NOT_NULL(allocationCount) sizes);
++
++/** \brief Invalidates memory of given set of allocations.
++
++Calls `vkInvalidateMappedMemoryRanges()` for memory associated with given ranges of given allocations.
++For more information, see documentation of vmaInvalidateAllocation().
++
++\param allocator
++\param allocationCount
++\param allocations
++\param offsets If not null, it must point to an array of offsets of regions to flush, relative to the beginning of respective allocations. Null means all ofsets are zero.
++\param sizes If not null, it must point to an array of sizes of regions to flush in respective allocations. Null means `VK_WHOLE_SIZE` for all allocations.
++
++This function returns the `VkResult` from `vkInvalidateMappedMemoryRanges` if it is
++called, otherwise `VK_SUCCESS`.
++*/
++VMA_CALL_PRE VkResult VMA_CALL_POST vmaInvalidateAllocations(
++    VmaAllocator VMA_NOT_NULL allocator,
++    uint32_t allocationCount,
++    const VmaAllocation VMA_NOT_NULL* VMA_NULLABLE VMA_LEN_IF_NOT_NULL(allocationCount) allocations,
++    const VkDeviceSize* VMA_NULLABLE VMA_LEN_IF_NOT_NULL(allocationCount) offsets,
++    const VkDeviceSize* VMA_NULLABLE VMA_LEN_IF_NOT_NULL(allocationCount) sizes);
++
++/** \brief Checks magic number in margins around all allocations in given memory types (in both default and custom pools) in search for corruptions.
++
++\param allocator
++\param memoryTypeBits Bit mask, where each bit set means that a memory type with that index should be checked.
++
++Corruption detection is enabled only when `VMA_DEBUG_DETECT_CORRUPTION` macro is defined to nonzero,
++`VMA_DEBUG_MARGIN` is defined to nonzero and only for memory types that are
++`HOST_VISIBLE` and `HOST_COHERENT`. For more information, see [Corruption detection](@ref debugging_memory_usage_corruption_detection).
++
++Possible return values:
++
++- `VK_ERROR_FEATURE_NOT_PRESENT` - corruption detection is not enabled for any of specified memory types.
++- `VK_SUCCESS` - corruption detection has been performed and succeeded.
++- `VK_ERROR_UNKNOWN` - corruption detection has been performed and found memory corruptions around one of the allocations.
++  `VMA_ASSERT` is also fired in that case.
++- Other value: Error returned by Vulkan, e.g. memory mapping failure.
++*/
++VMA_CALL_PRE VkResult VMA_CALL_POST vmaCheckCorruption(
++    VmaAllocator VMA_NOT_NULL allocator,
++    uint32_t memoryTypeBits);
++
++/** \brief Begins defragmentation process.
++
++\param allocator Allocator object.
++\param pInfo Structure filled with parameters of defragmentation.
++\param[out] pContext Context object that must be passed to vmaEndDefragmentation() to finish defragmentation.
++\returns
++- `VK_SUCCESS` if defragmentation can begin.
++- `VK_ERROR_FEATURE_NOT_PRESENT` if defragmentation is not supported.
++
++For more information about defragmentation, see documentation chapter:
++[Defragmentation](@ref defragmentation).
++*/
++VMA_CALL_PRE VkResult VMA_CALL_POST vmaBeginDefragmentation(
++    VmaAllocator VMA_NOT_NULL allocator,
++    const VmaDefragmentationInfo* VMA_NOT_NULL pInfo,
++    VmaDefragmentationContext VMA_NULLABLE* VMA_NOT_NULL pContext);
++
++/** \brief Ends defragmentation process.
++
++\param allocator Allocator object.
++\param context Context object that has been created by vmaBeginDefragmentation().
++\param[out] pStats Optional stats for the defragmentation. Can be null.
++
++Use this function to finish defragmentation started by vmaBeginDefragmentation().
++*/
++VMA_CALL_PRE void VMA_CALL_POST vmaEndDefragmentation(
++    VmaAllocator VMA_NOT_NULL allocator,
++    VmaDefragmentationContext VMA_NOT_NULL context,
++    VmaDefragmentationStats* VMA_NULLABLE pStats);
++
++/** \brief Starts single defragmentation pass.
++
++\param allocator Allocator object.
++\param context Context object that has been created by vmaBeginDefragmentation().
++\param[out] pPassInfo Computed informations for current pass.
++\returns
++- `VK_SUCCESS` if no more moves are possible. Then you can omit call to vmaEndDefragmentationPass() and simply end whole defragmentation.
++- `VK_INCOMPLETE` if there are pending moves returned in `pPassInfo`. You need to perform them, call vmaEndDefragmentationPass(),
++  and then preferably try another pass with vmaBeginDefragmentationPass().
++*/
++VMA_CALL_PRE VkResult VMA_CALL_POST vmaBeginDefragmentationPass(
++    VmaAllocator VMA_NOT_NULL allocator,
++    VmaDefragmentationContext VMA_NOT_NULL context,
++    VmaDefragmentationPassMoveInfo* VMA_NOT_NULL pPassInfo);
++
++/** \brief Ends single defragmentation pass.
++
++\param allocator Allocator object.
++\param context Context object that has been created by vmaBeginDefragmentation().
++\param pPassInfo Computed informations for current pass filled by vmaBeginDefragmentationPass() and possibly modified by you.
++
++Returns `VK_SUCCESS` if no more moves are possible or `VK_INCOMPLETE` if more defragmentations are possible.
++
++Ends incremental defragmentation pass and commits all defragmentation moves from `pPassInfo`.
++After this call:
++
++- Allocations at `pPassInfo[i].srcAllocation` that had `pPassInfo[i].operation ==` #VMA_DEFRAGMENTATION_MOVE_OPERATION_COPY
++  (which is the default) will be pointing to the new destination place.
++- Allocation at `pPassInfo[i].srcAllocation` that had `pPassInfo[i].operation ==` #VMA_DEFRAGMENTATION_MOVE_OPERATION_DESTROY
++  will be freed.
++
++If no more moves are possible you can end whole defragmentation.
++*/
++VMA_CALL_PRE VkResult VMA_CALL_POST vmaEndDefragmentationPass(
++    VmaAllocator VMA_NOT_NULL allocator,
++    VmaDefragmentationContext VMA_NOT_NULL context,
++    VmaDefragmentationPassMoveInfo* VMA_NOT_NULL pPassInfo);
++
++/** \brief Binds buffer to allocation.
++
++Binds specified buffer to region of memory represented by specified allocation.
++Gets `VkDeviceMemory` handle and offset from the allocation.
++If you want to create a buffer, allocate memory for it and bind them together separately,
++you should use this function for binding instead of standard `vkBindBufferMemory()`,
++because it ensures proper synchronization so that when a `VkDeviceMemory` object is used by multiple
++allocations, calls to `vkBind*Memory()` or `vkMapMemory()` won't happen from multiple threads simultaneously
++(which is illegal in Vulkan).
++
++It is recommended to use function vmaCreateBuffer() instead of this one.
++*/
++VMA_CALL_PRE VkResult VMA_CALL_POST vmaBindBufferMemory(
++    VmaAllocator VMA_NOT_NULL allocator,
++    VmaAllocation VMA_NOT_NULL allocation,
++    VkBuffer VMA_NOT_NULL_NON_DISPATCHABLE buffer);
++
++/** \brief Binds buffer to allocation with additional parameters.
++
++\param allocator
++\param allocation
++\param allocationLocalOffset Additional offset to be added while binding, relative to the beginning of the `allocation`. Normally it should be 0.
++\param buffer
++\param pNext A chain of structures to be attached to `VkBindBufferMemoryInfoKHR` structure used internally. Normally it should be null.
++
++This function is similar to vmaBindBufferMemory(), but it provides additional parameters.
++
++If `pNext` is not null, #VmaAllocator object must have been created with #VMA_ALLOCATOR_CREATE_KHR_BIND_MEMORY2_BIT flag
++or with VmaAllocatorCreateInfo::vulkanApiVersion `>= VK_API_VERSION_1_1`. Otherwise the call fails.
++*/
++VMA_CALL_PRE VkResult VMA_CALL_POST vmaBindBufferMemory2(
++    VmaAllocator VMA_NOT_NULL allocator,
++    VmaAllocation VMA_NOT_NULL allocation,
++    VkDeviceSize allocationLocalOffset,
++    VkBuffer VMA_NOT_NULL_NON_DISPATCHABLE buffer,
++    const void* VMA_NULLABLE pNext);
++
++/** \brief Binds image to allocation.
++
++Binds specified image to region of memory represented by specified allocation.
++Gets `VkDeviceMemory` handle and offset from the allocation.
++If you want to create an image, allocate memory for it and bind them together separately,
++you should use this function for binding instead of standard `vkBindImageMemory()`,
++because it ensures proper synchronization so that when a `VkDeviceMemory` object is used by multiple
++allocations, calls to `vkBind*Memory()` or `vkMapMemory()` won't happen from multiple threads simultaneously
++(which is illegal in Vulkan).
++
++It is recommended to use function vmaCreateImage() instead of this one.
++*/
++VMA_CALL_PRE VkResult VMA_CALL_POST vmaBindImageMemory(
++    VmaAllocator VMA_NOT_NULL allocator,
++    VmaAllocation VMA_NOT_NULL allocation,
++    VkImage VMA_NOT_NULL_NON_DISPATCHABLE image);
++
++/** \brief Binds image to allocation with additional parameters.
++
++\param allocator
++\param allocation
++\param allocationLocalOffset Additional offset to be added while binding, relative to the beginning of the `allocation`. Normally it should be 0.
++\param image
++\param pNext A chain of structures to be attached to `VkBindImageMemoryInfoKHR` structure used internally. Normally it should be null.
++
++This function is similar to vmaBindImageMemory(), but it provides additional parameters.
++
++If `pNext` is not null, #VmaAllocator object must have been created with #VMA_ALLOCATOR_CREATE_KHR_BIND_MEMORY2_BIT flag
++or with VmaAllocatorCreateInfo::vulkanApiVersion `>= VK_API_VERSION_1_1`. Otherwise the call fails.
++*/
++VMA_CALL_PRE VkResult VMA_CALL_POST vmaBindImageMemory2(
++    VmaAllocator VMA_NOT_NULL allocator,
++    VmaAllocation VMA_NOT_NULL allocation,
++    VkDeviceSize allocationLocalOffset,
++    VkImage VMA_NOT_NULL_NON_DISPATCHABLE image,
++    const void* VMA_NULLABLE pNext);
++
++/** \brief Creates a new `VkBuffer`, allocates and binds memory for it.
++
++\param allocator
++\param pBufferCreateInfo
++\param pAllocationCreateInfo
++\param[out] pBuffer Buffer that was created.
++\param[out] pAllocation Allocation that was created.
++\param[out] pAllocationInfo Optional. Information about allocated memory. It can be later fetched using function vmaGetAllocationInfo().
++
++This function automatically:
++
++-# Creates buffer.
++-# Allocates appropriate memory for it.
++-# Binds the buffer with the memory.
++
++If any of these operations fail, buffer and allocation are not created,
++returned value is negative error code, `*pBuffer` and `*pAllocation` are null.
++
++If the function succeeded, you must destroy both buffer and allocation when you
++no longer need them using either convenience function vmaDestroyBuffer() or
++separately, using `vkDestroyBuffer()` and vmaFreeMemory().
++
++If #VMA_ALLOCATOR_CREATE_KHR_DEDICATED_ALLOCATION_BIT flag was used,
++VK_KHR_dedicated_allocation extension is used internally to query driver whether
++it requires or prefers the new buffer to have dedicated allocation. If yes,
++and if dedicated allocation is possible
++(#VMA_ALLOCATION_CREATE_NEVER_ALLOCATE_BIT is not used), it creates dedicated
++allocation for this buffer, just like when using
++#VMA_ALLOCATION_CREATE_DEDICATED_MEMORY_BIT.
++
++\note This function creates a new `VkBuffer`. Sub-allocation of parts of one large buffer,
++although recommended as a good practice, is out of scope of this library and could be implemented
++by the user as a higher-level logic on top of VMA.
++*/
++VMA_CALL_PRE VkResult VMA_CALL_POST vmaCreateBuffer(
++    VmaAllocator VMA_NOT_NULL allocator,
++    const VkBufferCreateInfo* VMA_NOT_NULL pBufferCreateInfo,
++    const VmaAllocationCreateInfo* VMA_NOT_NULL pAllocationCreateInfo,
++    VkBuffer VMA_NULLABLE_NON_DISPATCHABLE* VMA_NOT_NULL pBuffer,
++    VmaAllocation VMA_NULLABLE* VMA_NOT_NULL pAllocation,
++    VmaAllocationInfo* VMA_NULLABLE pAllocationInfo);
++
++/** \brief Creates a buffer with additional minimum alignment.
++
++Similar to vmaCreateBuffer() but provides additional parameter `minAlignment` which allows to specify custom,
++minimum alignment to be used when placing the buffer inside a larger memory block, which may be needed e.g.
++for interop with OpenGL.
++*/
++VMA_CALL_PRE VkResult VMA_CALL_POST vmaCreateBufferWithAlignment(
++    VmaAllocator VMA_NOT_NULL allocator,
++    const VkBufferCreateInfo* VMA_NOT_NULL pBufferCreateInfo,
++    const VmaAllocationCreateInfo* VMA_NOT_NULL pAllocationCreateInfo,
++    VkDeviceSize minAlignment,
++    VkBuffer VMA_NULLABLE_NON_DISPATCHABLE* VMA_NOT_NULL pBuffer,
++    VmaAllocation VMA_NULLABLE* VMA_NOT_NULL pAllocation,
++    VmaAllocationInfo* VMA_NULLABLE pAllocationInfo);
++
++/** \brief Creates a new `VkBuffer`, binds already created memory for it.
++
++\param allocator
++\param allocation Allocation that provides memory to be used for binding new buffer to it.
++\param pBufferCreateInfo
++\param[out] pBuffer Buffer that was created.
++
++This function automatically:
++
++-# Creates buffer.
++-# Binds the buffer with the supplied memory.
++
++If any of these operations fail, buffer is not created,
++returned value is negative error code and `*pBuffer` is null.
++
++If the function succeeded, you must destroy the buffer when you
++no longer need it using `vkDestroyBuffer()`. If you want to also destroy the corresponding
++allocation you can use convenience function vmaDestroyBuffer().
++*/
++VMA_CALL_PRE VkResult VMA_CALL_POST vmaCreateAliasingBuffer(
++    VmaAllocator VMA_NOT_NULL allocator,
++    VmaAllocation VMA_NOT_NULL allocation,
++    const VkBufferCreateInfo* VMA_NOT_NULL pBufferCreateInfo,
++    VkBuffer VMA_NULLABLE_NON_DISPATCHABLE* VMA_NOT_NULL pBuffer);
++
++/** \brief Destroys Vulkan buffer and frees allocated memory.
++
++This is just a convenience function equivalent to:
++
++\code
++vkDestroyBuffer(device, buffer, allocationCallbacks);
++vmaFreeMemory(allocator, allocation);
++\endcode
++
++It it safe to pass null as buffer and/or allocation.
++*/
++VMA_CALL_PRE void VMA_CALL_POST vmaDestroyBuffer(
++    VmaAllocator VMA_NOT_NULL allocator,
++    VkBuffer VMA_NULLABLE_NON_DISPATCHABLE buffer,
++    VmaAllocation VMA_NULLABLE allocation);
++
++/// Function similar to vmaCreateBuffer().
++VMA_CALL_PRE VkResult VMA_CALL_POST vmaCreateImage(
++    VmaAllocator VMA_NOT_NULL allocator,
++    const VkImageCreateInfo* VMA_NOT_NULL pImageCreateInfo,
++    const VmaAllocationCreateInfo* VMA_NOT_NULL pAllocationCreateInfo,
++    VkImage VMA_NULLABLE_NON_DISPATCHABLE* VMA_NOT_NULL pImage,
++    VmaAllocation VMA_NULLABLE* VMA_NOT_NULL pAllocation,
++    VmaAllocationInfo* VMA_NULLABLE pAllocationInfo);
++
++/// Function similar to vmaCreateAliasingBuffer().
++VMA_CALL_PRE VkResult VMA_CALL_POST vmaCreateAliasingImage(
++    VmaAllocator VMA_NOT_NULL allocator,
++    VmaAllocation VMA_NOT_NULL allocation,
++    const VkImageCreateInfo* VMA_NOT_NULL pImageCreateInfo,
++    VkImage VMA_NULLABLE_NON_DISPATCHABLE* VMA_NOT_NULL pImage);
++
++/** \brief Destroys Vulkan image and frees allocated memory.
++
++This is just a convenience function equivalent to:
++
++\code
++vkDestroyImage(device, image, allocationCallbacks);
++vmaFreeMemory(allocator, allocation);
++\endcode
++
++It it safe to pass null as image and/or allocation.
++*/
++VMA_CALL_PRE void VMA_CALL_POST vmaDestroyImage(
++    VmaAllocator VMA_NOT_NULL allocator,
++    VkImage VMA_NULLABLE_NON_DISPATCHABLE image,
++    VmaAllocation VMA_NULLABLE allocation);
++
++/** @} */
++
++/**
++\addtogroup group_virtual
++@{
++*/
++
++/** \brief Creates new #VmaVirtualBlock object.
++
++\param pCreateInfo Parameters for creation.
++\param[out] pVirtualBlock Returned virtual block object or `VMA_NULL` if creation failed.
++*/
++VMA_CALL_PRE VkResult VMA_CALL_POST vmaCreateVirtualBlock(
++    const VmaVirtualBlockCreateInfo* VMA_NOT_NULL pCreateInfo,
++    VmaVirtualBlock VMA_NULLABLE* VMA_NOT_NULL pVirtualBlock);
++
++/** \brief Destroys #VmaVirtualBlock object.
++
++Please note that you should consciously handle virtual allocations that could remain unfreed in the block.
++You should either free them individually using vmaVirtualFree() or call vmaClearVirtualBlock()
++if you are sure this is what you want. If you do neither, an assert is called.
++
++If you keep pointers to some additional metadata associated with your virtual allocations in their `pUserData`,
++don't forget to free them.
++*/
++VMA_CALL_PRE void VMA_CALL_POST vmaDestroyVirtualBlock(
++    VmaVirtualBlock VMA_NULLABLE virtualBlock);
++
++/** \brief Returns true of the #VmaVirtualBlock is empty - contains 0 virtual allocations and has all its space available for new allocations.
++*/
++VMA_CALL_PRE VkBool32 VMA_CALL_POST vmaIsVirtualBlockEmpty(
++    VmaVirtualBlock VMA_NOT_NULL virtualBlock);
++
++/** \brief Returns information about a specific virtual allocation within a virtual block, like its size and `pUserData` pointer.
++*/
++VMA_CALL_PRE void VMA_CALL_POST vmaGetVirtualAllocationInfo(
++    VmaVirtualBlock VMA_NOT_NULL virtualBlock,
++    VmaVirtualAllocation VMA_NOT_NULL_NON_DISPATCHABLE allocation, VmaVirtualAllocationInfo* VMA_NOT_NULL pVirtualAllocInfo);
++
++/** \brief Allocates new virtual allocation inside given #VmaVirtualBlock.
++
++If the allocation fails due to not enough free space available, `VK_ERROR_OUT_OF_DEVICE_MEMORY` is returned
++(despite the function doesn't ever allocate actual GPU memory).
++`pAllocation` is then set to `VK_NULL_HANDLE` and `pOffset`, if not null, it set to `UINT64_MAX`.
++
++\param virtualBlock Virtual block
++\param pCreateInfo Parameters for the allocation
++\param[out] pAllocation Returned handle of the new allocation
++\param[out] pOffset Returned offset of the new allocation. Optional, can be null.
++*/
++VMA_CALL_PRE VkResult VMA_CALL_POST vmaVirtualAllocate(
++    VmaVirtualBlock VMA_NOT_NULL virtualBlock,
++    const VmaVirtualAllocationCreateInfo* VMA_NOT_NULL pCreateInfo,
++    VmaVirtualAllocation VMA_NULLABLE_NON_DISPATCHABLE* VMA_NOT_NULL pAllocation,
++    VkDeviceSize* VMA_NULLABLE pOffset);
++
++/** \brief Frees virtual allocation inside given #VmaVirtualBlock.
++
++It is correct to call this function with `allocation == VK_NULL_HANDLE` - it does nothing.
++*/
++VMA_CALL_PRE void VMA_CALL_POST vmaVirtualFree(
++    VmaVirtualBlock VMA_NOT_NULL virtualBlock,
++    VmaVirtualAllocation VMA_NULLABLE_NON_DISPATCHABLE allocation);
++
++/** \brief Frees all virtual allocations inside given #VmaVirtualBlock.
++
++You must either call this function or free each virtual allocation individually with vmaVirtualFree()
++before destroying a virtual block. Otherwise, an assert is called.
++
++If you keep pointer to some additional metadata associated with your virtual allocation in its `pUserData`,
++don't forget to free it as well.
++*/
++VMA_CALL_PRE void VMA_CALL_POST vmaClearVirtualBlock(
++    VmaVirtualBlock VMA_NOT_NULL virtualBlock);
++
++/** \brief Changes custom pointer associated with given virtual allocation.
++*/
++VMA_CALL_PRE void VMA_CALL_POST vmaSetVirtualAllocationUserData(
++    VmaVirtualBlock VMA_NOT_NULL virtualBlock,
++    VmaVirtualAllocation VMA_NOT_NULL_NON_DISPATCHABLE allocation,
++    void* VMA_NULLABLE pUserData);
++
++/** \brief Calculates and returns statistics about virtual allocations and memory usage in given #VmaVirtualBlock.
++
++This function is fast to call. For more detailed statistics, see vmaCalculateVirtualBlockStatistics().
++*/
++VMA_CALL_PRE void VMA_CALL_POST vmaGetVirtualBlockStatistics(
++    VmaVirtualBlock VMA_NOT_NULL virtualBlock,
++    VmaStatistics* VMA_NOT_NULL pStats);
++
++/** \brief Calculates and returns detailed statistics about virtual allocations and memory usage in given #VmaVirtualBlock.
++
++This function is slow to call. Use for debugging purposes.
++For less detailed statistics, see vmaGetVirtualBlockStatistics().
++*/
++VMA_CALL_PRE void VMA_CALL_POST vmaCalculateVirtualBlockStatistics(
++    VmaVirtualBlock VMA_NOT_NULL virtualBlock,
++    VmaDetailedStatistics* VMA_NOT_NULL pStats);
++
++/** @} */
++
++#if VMA_STATS_STRING_ENABLED
++/**
++\addtogroup group_stats
++@{
++*/
++
++/** \brief Builds and returns a null-terminated string in JSON format with information about given #VmaVirtualBlock.
++\param virtualBlock Virtual block.
++\param[out] ppStatsString Returned string.
++\param detailedMap Pass `VK_FALSE` to only obtain statistics as returned by vmaCalculateVirtualBlockStatistics(). Pass `VK_TRUE` to also obtain full list of allocations and free spaces.
++
++Returned string must be freed using vmaFreeVirtualBlockStatsString().
++*/
++VMA_CALL_PRE void VMA_CALL_POST vmaBuildVirtualBlockStatsString(
++    VmaVirtualBlock VMA_NOT_NULL virtualBlock,
++    char* VMA_NULLABLE* VMA_NOT_NULL ppStatsString,
++    VkBool32 detailedMap);
++
++/// Frees a string returned by vmaBuildVirtualBlockStatsString().
++VMA_CALL_PRE void VMA_CALL_POST vmaFreeVirtualBlockStatsString(
++    VmaVirtualBlock VMA_NOT_NULL virtualBlock,
++    char* VMA_NULLABLE pStatsString);
++
++/** \brief Builds and returns statistics as a null-terminated string in JSON format.
++\param allocator
++\param[out] ppStatsString Must be freed using vmaFreeStatsString() function.
++\param detailedMap
++*/
++VMA_CALL_PRE void VMA_CALL_POST vmaBuildStatsString(
++    VmaAllocator VMA_NOT_NULL allocator,
++    char* VMA_NULLABLE* VMA_NOT_NULL ppStatsString,
++    VkBool32 detailedMap);
++
++VMA_CALL_PRE void VMA_CALL_POST vmaFreeStatsString(
++    VmaAllocator VMA_NOT_NULL allocator,
++    char* VMA_NULLABLE pStatsString);
++
++/** @} */
++
++#endif // VMA_STATS_STRING_ENABLED
++
++#endif // _VMA_FUNCTION_HEADERS
++
++#ifdef __cplusplus
++}
++#endif
++
++#endif // AMD_VULKAN_MEMORY_ALLOCATOR_H
++
++////////////////////////////////////////////////////////////////////////////////
++////////////////////////////////////////////////////////////////////////////////
++// 
++//    IMPLEMENTATION
++// 
++////////////////////////////////////////////////////////////////////////////////
++////////////////////////////////////////////////////////////////////////////////
++
++// For Visual Studio IntelliSense.
++#if defined(__cplusplus) && defined(__INTELLISENSE__)
++#define VMA_IMPLEMENTATION
++#endif
++
++#ifdef VMA_IMPLEMENTATION
++#undef VMA_IMPLEMENTATION
++
++#include <cstdint>
++#include <cstdlib>
++#include <cstring>
++#include <utility>
++#include <type_traits>
++
++#ifdef _MSC_VER
++    #include <intrin.h> // For functions like __popcnt, _BitScanForward etc.
++#endif
++#if __cplusplus >= 202002L || _MSVC_LANG >= 202002L // C++20
++    #include <bit> // For std::popcount
++#endif
++
++/*******************************************************************************
++CONFIGURATION SECTION
++
++Define some of these macros before each #include of this header or change them
++here if you need other then default behavior depending on your environment.
++*/
++#ifndef _VMA_CONFIGURATION
++
++/*
++Define this macro to 1 to make the library fetch pointers to Vulkan functions
++internally, like:
++
++    vulkanFunctions.vkAllocateMemory = &vkAllocateMemory;
++*/
++#if !defined(VMA_STATIC_VULKAN_FUNCTIONS) && !defined(VK_NO_PROTOTYPES)
++    #define VMA_STATIC_VULKAN_FUNCTIONS 1
++#endif
++
++/*
++Define this macro to 1 to make the library fetch pointers to Vulkan functions
++internally, like:
++
++    vulkanFunctions.vkAllocateMemory = (PFN_vkAllocateMemory)vkGetDeviceProcAddr(device, "vkAllocateMemory");
++
++To use this feature in new versions of VMA you now have to pass
++VmaVulkanFunctions::vkGetInstanceProcAddr and vkGetDeviceProcAddr as
++VmaAllocatorCreateInfo::pVulkanFunctions. Other members can be null.
++*/
++#if !defined(VMA_DYNAMIC_VULKAN_FUNCTIONS)
++    #define VMA_DYNAMIC_VULKAN_FUNCTIONS 1
++#endif
++
++#ifndef VMA_USE_STL_SHARED_MUTEX
++    // Compiler conforms to C++17.
++    #if __cplusplus >= 201703L
++        #define VMA_USE_STL_SHARED_MUTEX 1
++    // Visual studio defines __cplusplus properly only when passed additional parameter: /Zc:__cplusplus
++    // Otherwise it is always 199711L, despite shared_mutex works since Visual Studio 2015 Update 2.
++    #elif defined(_MSC_FULL_VER) && _MSC_FULL_VER >= 190023918 && __cplusplus == 199711L && _MSVC_LANG >= 201703L
++        #define VMA_USE_STL_SHARED_MUTEX 1
++    #else
++        #define VMA_USE_STL_SHARED_MUTEX 0
++    #endif
++#endif
++
++/*
++Define this macro to include custom header files without having to edit this file directly, e.g.:
++
++    // Inside of "my_vma_configuration_user_includes.h":
++
++    #include "my_custom_assert.h" // for MY_CUSTOM_ASSERT
++    #include "my_custom_min.h" // for my_custom_min
++    #include <algorithm>
++    #include <mutex>
++
++    // Inside a different file, which includes "vk_mem_alloc.h":
++
++    #define VMA_CONFIGURATION_USER_INCLUDES_H "my_vma_configuration_user_includes.h"
++    #define VMA_ASSERT(expr) MY_CUSTOM_ASSERT(expr)
++    #define VMA_MIN(v1, v2)  (my_custom_min(v1, v2))
++    #include "vk_mem_alloc.h"
++    ...
++
++The following headers are used in this CONFIGURATION section only, so feel free to
++remove them if not needed.
++*/
++#if !defined(VMA_CONFIGURATION_USER_INCLUDES_H)
++    #include <cassert> // for assert
++    #include <algorithm> // for min, max
++    #include <mutex>
++#else
++    #include VMA_CONFIGURATION_USER_INCLUDES_H
++#endif
++
++#ifndef VMA_NULL
++   // Value used as null pointer. Define it to e.g.: nullptr, NULL, 0, (void*)0.
++   #define VMA_NULL   nullptr
++#endif
++
++#if defined(__ANDROID_API__) && (__ANDROID_API__ < 16)
++#include <cstdlib>
++static void* vma_aligned_alloc(size_t alignment, size_t size)
++{
++    // alignment must be >= sizeof(void*)
++    if(alignment < sizeof(void*))
++    {
++        alignment = sizeof(void*);
++    }
++
++    return memalign(alignment, size);
++}
++#elif defined(__APPLE__) || defined(__ANDROID__) || (defined(__linux__) && defined(__GLIBCXX__) && !defined(_GLIBCXX_HAVE_ALIGNED_ALLOC))
++#include <cstdlib>
++
++#if defined(__APPLE__)
++#include <AvailabilityMacros.h>
++#endif
++
++static void* vma_aligned_alloc(size_t alignment, size_t size)
++{
++    // Unfortunately, aligned_alloc causes VMA to crash due to it returning null pointers. (At least under 11.4)
++    // Therefore, for now disable this specific exception until a proper solution is found.
++    //#if defined(__APPLE__) && (defined(MAC_OS_X_VERSION_10_16) || defined(__IPHONE_14_0))
++    //#if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_16 || __IPHONE_OS_VERSION_MAX_ALLOWED >= __IPHONE_14_0
++    //    // For C++14, usr/include/malloc/_malloc.h declares aligned_alloc()) only
++    //    // with the MacOSX11.0 SDK in Xcode 12 (which is what adds
++    //    // MAC_OS_X_VERSION_10_16), even though the function is marked
++    //    // availabe for 10.15. That is why the preprocessor checks for 10.16 but
++    //    // the __builtin_available checks for 10.15.
++    //    // People who use C++17 could call aligned_alloc with the 10.15 SDK already.
++    //    if (__builtin_available(macOS 10.15, iOS 13, *))
++    //        return aligned_alloc(alignment, size);
++    //#endif
++    //#endif
++
++    // alignment must be >= sizeof(void*)
++    if(alignment < sizeof(void*))
++    {
++        alignment = sizeof(void*);
++    }
++
++    void *pointer;
++    if(posix_memalign(&pointer, alignment, size) == 0)
++        return pointer;
++    return VMA_NULL;
++}
++#elif defined(_WIN32)
++static void* vma_aligned_alloc(size_t alignment, size_t size)
++{
++    return _aligned_malloc(size, alignment);
++}
++#else
++static void* vma_aligned_alloc(size_t alignment, size_t size)
++{
++    return aligned_alloc(alignment, size);
++}
++#endif
++
++#if defined(_WIN32)
++static void vma_aligned_free(void* ptr)
++{
++    _aligned_free(ptr);
++}
++#else
++static void vma_aligned_free(void* VMA_NULLABLE ptr)
++{
++    free(ptr);
++}
++#endif
++
++// If your compiler is not compatible with C++11 and definition of
++// aligned_alloc() function is missing, uncommeting following line may help:
++
++//#include <malloc.h>
++
++// Normal assert to check for programmer's errors, especially in Debug configuration.
++#ifndef VMA_ASSERT
++   #ifdef NDEBUG
++       #define VMA_ASSERT(expr)
++   #else
++       #define VMA_ASSERT(expr)         assert(expr)
++   #endif
++#endif
++
++// Assert that will be called very often, like inside data structures e.g. operator[].
++// Making it non-empty can make program slow.
++#ifndef VMA_HEAVY_ASSERT
++   #ifdef NDEBUG
++       #define VMA_HEAVY_ASSERT(expr)
++   #else
++       #define VMA_HEAVY_ASSERT(expr)   //VMA_ASSERT(expr)
++   #endif
++#endif
++
++#ifndef VMA_ALIGN_OF
++   #define VMA_ALIGN_OF(type)       (__alignof(type))
++#endif
++
++#ifndef VMA_SYSTEM_ALIGNED_MALLOC
++   #define VMA_SYSTEM_ALIGNED_MALLOC(size, alignment) vma_aligned_alloc((alignment), (size))
++#endif
++
++#ifndef VMA_SYSTEM_ALIGNED_FREE
++   // VMA_SYSTEM_FREE is the old name, but might have been defined by the user
++   #if defined(VMA_SYSTEM_FREE)
++      #define VMA_SYSTEM_ALIGNED_FREE(ptr)     VMA_SYSTEM_FREE(ptr)
++   #else
++      #define VMA_SYSTEM_ALIGNED_FREE(ptr)     vma_aligned_free(ptr)
++    #endif
++#endif
++
++#ifndef VMA_COUNT_BITS_SET
++    // Returns number of bits set to 1 in (v)
++    #define VMA_COUNT_BITS_SET(v) VmaCountBitsSet(v)
++#endif
++
++#ifndef VMA_BITSCAN_LSB
++    // Scans integer for index of first nonzero value from the Least Significant Bit (LSB). If mask is 0 then returns UINT8_MAX
++    #define VMA_BITSCAN_LSB(mask) VmaBitScanLSB(mask)
++#endif
++
++#ifndef VMA_BITSCAN_MSB
++    // Scans integer for index of first nonzero value from the Most Significant Bit (MSB). If mask is 0 then returns UINT8_MAX
++    #define VMA_BITSCAN_MSB(mask) VmaBitScanMSB(mask)
++#endif
++
++#ifndef VMA_MIN
++   #define VMA_MIN(v1, v2)    ((std::min)((v1), (v2)))
++#endif
++
++#ifndef VMA_MAX
++   #define VMA_MAX(v1, v2)    ((std::max)((v1), (v2)))
++#endif
++
++#ifndef VMA_SWAP
++   #define VMA_SWAP(v1, v2)   std::swap((v1), (v2))
++#endif
++
++#ifndef VMA_SORT
++   #define VMA_SORT(beg, end, cmp)  std::sort(beg, end, cmp)
++#endif
++
++#ifndef VMA_DEBUG_LOG
++   #define VMA_DEBUG_LOG(format, ...)
++   /*
++   #define VMA_DEBUG_LOG(format, ...) do { \
++       printf(format, __VA_ARGS__); \
++       printf("\n"); \
++   } while(false)
++   */
++#endif
++
++// Define this macro to 1 to enable functions: vmaBuildStatsString, vmaFreeStatsString.
++#if VMA_STATS_STRING_ENABLED
++    static inline void VmaUint32ToStr(char* VMA_NOT_NULL outStr, size_t strLen, uint32_t num)
++    {
++        snprintf(outStr, strLen, "%u", static_cast<unsigned int>(num));
++    }
++    static inline void VmaUint64ToStr(char* VMA_NOT_NULL outStr, size_t strLen, uint64_t num)
++    {
++        snprintf(outStr, strLen, "%llu", static_cast<unsigned long long>(num));
++    }
++    static inline void VmaPtrToStr(char* VMA_NOT_NULL outStr, size_t strLen, const void* ptr)
++    {
++        snprintf(outStr, strLen, "%p", ptr);
++    }
++#endif
++
++#ifndef VMA_MUTEX
++    class VmaMutex
++    {
++    public:
++        void Lock() { m_Mutex.lock(); }
++        void Unlock() { m_Mutex.unlock(); }
++        bool TryLock() { return m_Mutex.try_lock(); }
++    private:
++        std::mutex m_Mutex;
++    };
++    #define VMA_MUTEX VmaMutex
++#endif
++
++// Read-write mutex, where "read" is shared access, "write" is exclusive access.
++#ifndef VMA_RW_MUTEX
++    #if VMA_USE_STL_SHARED_MUTEX
++        // Use std::shared_mutex from C++17.
++        #include <shared_mutex>
++        class VmaRWMutex
++        {
++        public:
++            void LockRead() { m_Mutex.lock_shared(); }
++            void UnlockRead() { m_Mutex.unlock_shared(); }
++            bool TryLockRead() { return m_Mutex.try_lock_shared(); }
++            void LockWrite() { m_Mutex.lock(); }
++            void UnlockWrite() { m_Mutex.unlock(); }
++            bool TryLockWrite() { return m_Mutex.try_lock(); }
++        private:
++            std::shared_mutex m_Mutex;
++        };
++        #define VMA_RW_MUTEX VmaRWMutex
++    #elif defined(_WIN32) && defined(WINVER) && WINVER >= 0x0600
++        // Use SRWLOCK from WinAPI.
++        // Minimum supported client = Windows Vista, server = Windows Server 2008.
++        class VmaRWMutex
++        {
++        public:
++            VmaRWMutex() { InitializeSRWLock(&m_Lock); }
++            void LockRead() { AcquireSRWLockShared(&m_Lock); }
++            void UnlockRead() { ReleaseSRWLockShared(&m_Lock); }
++            bool TryLockRead() { return TryAcquireSRWLockShared(&m_Lock) != FALSE; }
++            void LockWrite() { AcquireSRWLockExclusive(&m_Lock); }
++            void UnlockWrite() { ReleaseSRWLockExclusive(&m_Lock); }
++            bool TryLockWrite() { return TryAcquireSRWLockExclusive(&m_Lock) != FALSE; }
++        private:
++            SRWLOCK m_Lock;
++        };
++        #define VMA_RW_MUTEX VmaRWMutex
++    #else
++        // Less efficient fallback: Use normal mutex.
++        class VmaRWMutex
++        {
++        public:
++            void LockRead() { m_Mutex.Lock(); }
++            void UnlockRead() { m_Mutex.Unlock(); }
++            bool TryLockRead() { return m_Mutex.TryLock(); }
++            void LockWrite() { m_Mutex.Lock(); }
++            void UnlockWrite() { m_Mutex.Unlock(); }
++            bool TryLockWrite() { return m_Mutex.TryLock(); }
++        private:
++            VMA_MUTEX m_Mutex;
++        };
++        #define VMA_RW_MUTEX VmaRWMutex
++    #endif // #if VMA_USE_STL_SHARED_MUTEX
++#endif // #ifndef VMA_RW_MUTEX
++
++/*
++If providing your own implementation, you need to implement a subset of std::atomic.
++*/
++#ifndef VMA_ATOMIC_UINT32
++    #include <atomic>
++    #define VMA_ATOMIC_UINT32 std::atomic<uint32_t>
++#endif
++
++#ifndef VMA_ATOMIC_UINT64
++    #include <atomic>
++    #define VMA_ATOMIC_UINT64 std::atomic<uint64_t>
++#endif
++
++#ifndef VMA_DEBUG_ALWAYS_DEDICATED_MEMORY
++    /**
++    Every allocation will have its own memory block.
++    Define to 1 for debugging purposes only.
++    */
++    #define VMA_DEBUG_ALWAYS_DEDICATED_MEMORY (0)
++#endif
++
++#ifndef VMA_MIN_ALIGNMENT
++    /**
++    Minimum alignment of all allocations, in bytes.
++    Set to more than 1 for debugging purposes. Must be power of two.
++    */
++    #ifdef VMA_DEBUG_ALIGNMENT // Old name
++        #define VMA_MIN_ALIGNMENT VMA_DEBUG_ALIGNMENT
++    #else
++        #define VMA_MIN_ALIGNMENT (1)
++    #endif
++#endif
++
++#ifndef VMA_DEBUG_MARGIN
++    /**
++    Minimum margin after every allocation, in bytes.
++    Set nonzero for debugging purposes only.
++    */
++    #define VMA_DEBUG_MARGIN (0)
++#endif
++
++#ifndef VMA_DEBUG_INITIALIZE_ALLOCATIONS
++    /**
++    Define this macro to 1 to automatically fill new allocations and destroyed
++    allocations with some bit pattern.
++    */
++    #define VMA_DEBUG_INITIALIZE_ALLOCATIONS (0)
++#endif
++
++#ifndef VMA_DEBUG_DETECT_CORRUPTION
++    /**
++    Define this macro to 1 together with non-zero value of VMA_DEBUG_MARGIN to
++    enable writing magic value to the margin after every allocation and
++    validating it, so that memory corruptions (out-of-bounds writes) are detected.
++    */
++    #define VMA_DEBUG_DETECT_CORRUPTION (0)
++#endif
++
++#ifndef VMA_DEBUG_GLOBAL_MUTEX
++    /**
++    Set this to 1 for debugging purposes only, to enable single mutex protecting all
++    entry calls to the library. Can be useful for debugging multithreading issues.
++    */
++    #define VMA_DEBUG_GLOBAL_MUTEX (0)
++#endif
++
++#ifndef VMA_DEBUG_MIN_BUFFER_IMAGE_GRANULARITY
++    /**
++    Minimum value for VkPhysicalDeviceLimits::bufferImageGranularity.
++    Set to more than 1 for debugging purposes only. Must be power of two.
++    */
++    #define VMA_DEBUG_MIN_BUFFER_IMAGE_GRANULARITY (1)
++#endif
++
++#ifndef VMA_DEBUG_DONT_EXCEED_MAX_MEMORY_ALLOCATION_COUNT
++    /*
++    Set this to 1 to make VMA never exceed VkPhysicalDeviceLimits::maxMemoryAllocationCount
++    and return error instead of leaving up to Vulkan implementation what to do in such cases.
++    */
++    #define VMA_DEBUG_DONT_EXCEED_MAX_MEMORY_ALLOCATION_COUNT (0)
++#endif
++
++#ifndef VMA_SMALL_HEAP_MAX_SIZE
++   /// Maximum size of a memory heap in Vulkan to consider it "small".
++   #define VMA_SMALL_HEAP_MAX_SIZE (1024ull * 1024 * 1024)
++#endif
++
++#ifndef VMA_DEFAULT_LARGE_HEAP_BLOCK_SIZE
++   /// Default size of a block allocated as single VkDeviceMemory from a "large" heap.
++   #define VMA_DEFAULT_LARGE_HEAP_BLOCK_SIZE (256ull * 1024 * 1024)
++#endif
++
++/*
++Mapping hysteresis is a logic that launches when vmaMapMemory/vmaUnmapMemory is called
++or a persistently mapped allocation is created and destroyed several times in a row.
++It keeps additional +1 mapping of a device memory block to prevent calling actual
++vkMapMemory/vkUnmapMemory too many times, which may improve performance and help
++tools like RenderDOc.
++*/
++#ifndef VMA_MAPPING_HYSTERESIS_ENABLED
++    #define VMA_MAPPING_HYSTERESIS_ENABLED 1
++#endif
++
++#ifndef VMA_CLASS_NO_COPY
++    #define VMA_CLASS_NO_COPY(className) \
++        private: \
++            className(const className&) = delete; \
++            className& operator=(const className&) = delete;
++#endif
++
++#define VMA_VALIDATE(cond) do { if(!(cond)) { \
++        VMA_ASSERT(0 && "Validation failed: " #cond); \
++        return false; \
++    } } while(false)
++
++/*******************************************************************************
++END OF CONFIGURATION
++*/
++#endif // _VMA_CONFIGURATION
++
++
++static const uint8_t VMA_ALLOCATION_FILL_PATTERN_CREATED = 0xDC;
++static const uint8_t VMA_ALLOCATION_FILL_PATTERN_DESTROYED = 0xEF;
++// Decimal 2139416166, float NaN, little-endian binary 66 E6 84 7F.
++static const uint32_t VMA_CORRUPTION_DETECTION_MAGIC_VALUE = 0x7F84E666;
++
++// Copy of some Vulkan definitions so we don't need to check their existence just to handle few constants.
++static const uint32_t VK_MEMORY_PROPERTY_DEVICE_COHERENT_BIT_AMD_COPY = 0x00000040;
++static const uint32_t VK_MEMORY_PROPERTY_DEVICE_UNCACHED_BIT_AMD_COPY = 0x00000080;
++static const uint32_t VK_BUFFER_USAGE_SHADER_DEVICE_ADDRESS_BIT_COPY = 0x00020000;
++static const uint32_t VK_IMAGE_CREATE_DISJOINT_BIT_COPY = 0x00000200;
++static const int32_t VK_IMAGE_TILING_DRM_FORMAT_MODIFIER_EXT_COPY = 1000158000;
++static const uint32_t VMA_ALLOCATION_INTERNAL_STRATEGY_MIN_OFFSET = 0x10000000u;
++static const uint32_t VMA_ALLOCATION_TRY_COUNT = 32;
++static const uint32_t VMA_VENDOR_ID_AMD = 4098;
++
++// This one is tricky. Vulkan specification defines this code as available since
++// Vulkan 1.0, but doesn't actually define it in Vulkan SDK earlier than 1.2.131.
++// See pull request #207.
++#define VK_ERROR_UNKNOWN_COPY ((VkResult)-13)
++
++
++#if VMA_STATS_STRING_ENABLED
++// Correspond to values of enum VmaSuballocationType.
++static const char* VMA_SUBALLOCATION_TYPE_NAMES[] =
++{
++    "FREE",
++    "UNKNOWN",
++    "BUFFER",
++    "IMAGE_UNKNOWN",
++    "IMAGE_LINEAR",
++    "IMAGE_OPTIMAL",
++};
++#endif
++
++static VkAllocationCallbacks VmaEmptyAllocationCallbacks =
++    { VMA_NULL, VMA_NULL, VMA_NULL, VMA_NULL, VMA_NULL, VMA_NULL };
++
++
++#ifndef _VMA_ENUM_DECLARATIONS
++
++enum VmaSuballocationType
++{
++    VMA_SUBALLOCATION_TYPE_FREE = 0,
++    VMA_SUBALLOCATION_TYPE_UNKNOWN = 1,
++    VMA_SUBALLOCATION_TYPE_BUFFER = 2,
++    VMA_SUBALLOCATION_TYPE_IMAGE_UNKNOWN = 3,
++    VMA_SUBALLOCATION_TYPE_IMAGE_LINEAR = 4,
++    VMA_SUBALLOCATION_TYPE_IMAGE_OPTIMAL = 5,
++    VMA_SUBALLOCATION_TYPE_MAX_ENUM = 0x7FFFFFFF
++};
++
++enum VMA_CACHE_OPERATION
++{
++    VMA_CACHE_FLUSH,
++    VMA_CACHE_INVALIDATE
++};
++
++enum class VmaAllocationRequestType
++{
++    Normal,
++    TLSF,
++    // Used by "Linear" algorithm.
++    UpperAddress,
++    EndOf1st,
++    EndOf2nd,
++};
++
++#endif // _VMA_ENUM_DECLARATIONS
++
++#ifndef _VMA_FORWARD_DECLARATIONS
++// Opaque handle used by allocation algorithms to identify single allocation in any conforming way.
++VK_DEFINE_NON_DISPATCHABLE_HANDLE(VmaAllocHandle);
++
++struct VmaMutexLock;
++struct VmaMutexLockRead;
++struct VmaMutexLockWrite;
++
++template<typename T>
++struct AtomicTransactionalIncrement;
++
++template<typename T>
++struct VmaStlAllocator;
++
++template<typename T, typename AllocatorT>
++class VmaVector;
++
++template<typename T, typename AllocatorT, size_t N>
++class VmaSmallVector;
++
++template<typename T>
++class VmaPoolAllocator;
++
++template<typename T>
++struct VmaListItem;
++
++template<typename T>
++class VmaRawList;
++
++template<typename T, typename AllocatorT>
++class VmaList;
++
++template<typename ItemTypeTraits>
++class VmaIntrusiveLinkedList;
++
++// Unused in this version
++#if 0
++template<typename T1, typename T2>
++struct VmaPair;
++template<typename FirstT, typename SecondT>
++struct VmaPairFirstLess;
++
++template<typename KeyT, typename ValueT>
++class VmaMap;
++#endif
++
++#if VMA_STATS_STRING_ENABLED
++class VmaStringBuilder;
++class VmaJsonWriter;
++#endif
++
++class VmaDeviceMemoryBlock;
++
++struct VmaDedicatedAllocationListItemTraits;
++class VmaDedicatedAllocationList;
++
++struct VmaSuballocation;
++struct VmaSuballocationOffsetLess;
++struct VmaSuballocationOffsetGreater;
++struct VmaSuballocationItemSizeLess;
++
++typedef VmaList<VmaSuballocation, VmaStlAllocator<VmaSuballocation>> VmaSuballocationList;
++
++struct VmaAllocationRequest;
++
++class VmaBlockMetadata;
++class VmaBlockMetadata_Linear;
++class VmaBlockMetadata_TLSF;
++
++class VmaBlockVector;
++
++struct VmaPoolListItemTraits;
++
++struct VmaCurrentBudgetData;
++
++class VmaAllocationObjectAllocator;
++
++#endif // _VMA_FORWARD_DECLARATIONS
++
++
++#ifndef _VMA_FUNCTIONS
++
++/*
++Returns number of bits set to 1 in (v).
++
++On specific platforms and compilers you can use instrinsics like:
++
++Visual Studio:
++    return __popcnt(v);
++GCC, Clang:
++    return static_cast<uint32_t>(__builtin_popcount(v));
++
++Define macro VMA_COUNT_BITS_SET to provide your optimized implementation.
++But you need to check in runtime whether user's CPU supports these, as some old processors don't.
++*/
++static inline uint32_t VmaCountBitsSet(uint32_t v)
++{
++#if __cplusplus >= 202002L || _MSVC_LANG >= 202002L // C++20
++    return std::popcount(v);
++#else
++    uint32_t c = v - ((v >> 1) & 0x55555555);
++    c = ((c >> 2) & 0x33333333) + (c & 0x33333333);
++    c = ((c >> 4) + c) & 0x0F0F0F0F;
++    c = ((c >> 8) + c) & 0x00FF00FF;
++    c = ((c >> 16) + c) & 0x0000FFFF;
++    return c;
++#endif
++}
++
++static inline uint8_t VmaBitScanLSB(uint64_t mask)
++{
++#if defined(_MSC_VER) && defined(_WIN64)
++    unsigned long pos;
++    if (_BitScanForward64(&pos, mask))
++        return static_cast<uint8_t>(pos);
++    return UINT8_MAX;
++#elif defined __GNUC__ || defined __clang__
++    return static_cast<uint8_t>(__builtin_ffsll(mask)) - 1U;
++#else
++    uint8_t pos = 0;
++    uint64_t bit = 1;
++    do
++    {
++        if (mask & bit)
++            return pos;
++        bit <<= 1;
++    } while (pos++ < 63);
++    return UINT8_MAX;
++#endif
++}
++
++static inline uint8_t VmaBitScanLSB(uint32_t mask)
++{
++#ifdef _MSC_VER
++    unsigned long pos;
++    if (_BitScanForward(&pos, mask))
++        return static_cast<uint8_t>(pos);
++    return UINT8_MAX;
++#elif defined __GNUC__ || defined __clang__
++    return static_cast<uint8_t>(__builtin_ffs(mask)) - 1U;
++#else
++    uint8_t pos = 0;
++    uint32_t bit = 1;
++    do
++    {
++        if (mask & bit)
++            return pos;
++        bit <<= 1;
++    } while (pos++ < 31);
++    return UINT8_MAX;
++#endif
++}
++
++static inline uint8_t VmaBitScanMSB(uint64_t mask)
++{
++#if defined(_MSC_VER) && defined(_WIN64)
++    unsigned long pos;
++    if (_BitScanReverse64(&pos, mask))
++        return static_cast<uint8_t>(pos);
++#elif defined __GNUC__ || defined __clang__
++    if (mask)
++        return 63 - static_cast<uint8_t>(__builtin_clzll(mask));
++#else
++    uint8_t pos = 63;
++    uint64_t bit = 1ULL << 63;
++    do
++    {
++        if (mask & bit)
++            return pos;
++        bit >>= 1;
++    } while (pos-- > 0);
++#endif
++    return UINT8_MAX;
++}
++
++static inline uint8_t VmaBitScanMSB(uint32_t mask)
++{
++#ifdef _MSC_VER
++    unsigned long pos;
++    if (_BitScanReverse(&pos, mask))
++        return static_cast<uint8_t>(pos);
++#elif defined __GNUC__ || defined __clang__
++    if (mask)
++        return 31 - static_cast<uint8_t>(__builtin_clz(mask));
++#else
++    uint8_t pos = 31;
++    uint32_t bit = 1UL << 31;
++    do
++    {
++        if (mask & bit)
++            return pos;
++        bit >>= 1;
++    } while (pos-- > 0);
++#endif
++    return UINT8_MAX;
++}
++
++/*
++Returns true if given number is a power of two.
++T must be unsigned integer number or signed integer but always nonnegative.
++For 0 returns true.
++*/
++template <typename T>
++inline bool VmaIsPow2(T x)
++{
++    return (x & (x - 1)) == 0;
++}
++
++// Aligns given value up to nearest multiply of align value. For example: VmaAlignUp(11, 8) = 16.
++// Use types like uint32_t, uint64_t as T.
++template <typename T>
++static inline T VmaAlignUp(T val, T alignment)
++{
++    VMA_HEAVY_ASSERT(VmaIsPow2(alignment));
++    return (val + alignment - 1) & ~(alignment - 1);
++}
++
++// Aligns given value down to nearest multiply of align value. For example: VmaAlignUp(11, 8) = 8.
++// Use types like uint32_t, uint64_t as T.
++template <typename T>
++static inline T VmaAlignDown(T val, T alignment)
++{
++    VMA_HEAVY_ASSERT(VmaIsPow2(alignment));
++    return val & ~(alignment - 1);
++}
++
++// Division with mathematical rounding to nearest number.
++template <typename T>
++static inline T VmaRoundDiv(T x, T y)
++{
++    return (x + (y / (T)2)) / y;
++}
++
++// Divide by 'y' and round up to nearest integer.
++template <typename T>
++static inline T VmaDivideRoundingUp(T x, T y)
++{
++    return (x + y - (T)1) / y;
++}
++
++// Returns smallest power of 2 greater or equal to v.
++static inline uint32_t VmaNextPow2(uint32_t v)
++{
++    v--;
++    v |= v >> 1;
++    v |= v >> 2;
++    v |= v >> 4;
++    v |= v >> 8;
++    v |= v >> 16;
++    v++;
++    return v;
++}
++
++static inline uint64_t VmaNextPow2(uint64_t v)
++{
++    v--;
++    v |= v >> 1;
++    v |= v >> 2;
++    v |= v >> 4;
++    v |= v >> 8;
++    v |= v >> 16;
++    v |= v >> 32;
++    v++;
++    return v;
++}
++
++// Returns largest power of 2 less or equal to v.
++static inline uint32_t VmaPrevPow2(uint32_t v)
++{
++    v |= v >> 1;
++    v |= v >> 2;
++    v |= v >> 4;
++    v |= v >> 8;
++    v |= v >> 16;
++    v = v ^ (v >> 1);
++    return v;
++}
++
++static inline uint64_t VmaPrevPow2(uint64_t v)
++{
++    v |= v >> 1;
++    v |= v >> 2;
++    v |= v >> 4;
++    v |= v >> 8;
++    v |= v >> 16;
++    v |= v >> 32;
++    v = v ^ (v >> 1);
++    return v;
++}
++
++static inline bool VmaStrIsEmpty(const char* pStr)
++{
++    return pStr == VMA_NULL || *pStr == '\0';
++}
++
++#ifndef VMA_SORT
++template<typename Iterator, typename Compare>
++Iterator VmaQuickSortPartition(Iterator beg, Iterator end, Compare cmp)
++{
++    Iterator centerValue = end; --centerValue;
++    Iterator insertIndex = beg;
++    for (Iterator memTypeIndex = beg; memTypeIndex < centerValue; ++memTypeIndex)
++    {
++        if (cmp(*memTypeIndex, *centerValue))
++        {
++            if (insertIndex != memTypeIndex)
++            {
++                VMA_SWAP(*memTypeIndex, *insertIndex);
++            }
++            ++insertIndex;
++        }
++    }
++    if (insertIndex != centerValue)
++    {
++        VMA_SWAP(*insertIndex, *centerValue);
++    }
++    return insertIndex;
++}
++
++template<typename Iterator, typename Compare>
++void VmaQuickSort(Iterator beg, Iterator end, Compare cmp)
++{
++    if (beg < end)
++    {
++        Iterator it = VmaQuickSortPartition<Iterator, Compare>(beg, end, cmp);
++        VmaQuickSort<Iterator, Compare>(beg, it, cmp);
++        VmaQuickSort<Iterator, Compare>(it + 1, end, cmp);
++    }
++}
++
++#define VMA_SORT(beg, end, cmp) VmaQuickSort(beg, end, cmp)
++#endif // VMA_SORT
++
++/*
++Returns true if two memory blocks occupy overlapping pages.
++ResourceA must be in less memory offset than ResourceB.
++
++Algorithm is based on "Vulkan 1.0.39 - A Specification (with all registered Vulkan extensions)"
++chapter 11.6 "Resource Memory Association", paragraph "Buffer-Image Granularity".
++*/
++static inline bool VmaBlocksOnSamePage(
++    VkDeviceSize resourceAOffset,
++    VkDeviceSize resourceASize,
++    VkDeviceSize resourceBOffset,
++    VkDeviceSize pageSize)
++{
++    VMA_ASSERT(resourceAOffset + resourceASize <= resourceBOffset && resourceASize > 0 && pageSize > 0);
++    VkDeviceSize resourceAEnd = resourceAOffset + resourceASize - 1;
++    VkDeviceSize resourceAEndPage = resourceAEnd & ~(pageSize - 1);
++    VkDeviceSize resourceBStart = resourceBOffset;
++    VkDeviceSize resourceBStartPage = resourceBStart & ~(pageSize - 1);
++    return resourceAEndPage == resourceBStartPage;
++}
++
++/*
++Returns true if given suballocation types could conflict and must respect
++VkPhysicalDeviceLimits::bufferImageGranularity. They conflict if one is buffer
++or linear image and another one is optimal image. If type is unknown, behave
++conservatively.
++*/
++static inline bool VmaIsBufferImageGranularityConflict(
++    VmaSuballocationType suballocType1,
++    VmaSuballocationType suballocType2)
++{
++    if (suballocType1 > suballocType2)
++    {
++        VMA_SWAP(suballocType1, suballocType2);
++    }
++
++    switch (suballocType1)
++    {
++    case VMA_SUBALLOCATION_TYPE_FREE:
++        return false;
++    case VMA_SUBALLOCATION_TYPE_UNKNOWN:
++        return true;
++    case VMA_SUBALLOCATION_TYPE_BUFFER:
++        return
++            suballocType2 == VMA_SUBALLOCATION_TYPE_IMAGE_UNKNOWN ||
++            suballocType2 == VMA_SUBALLOCATION_TYPE_IMAGE_OPTIMAL;
++    case VMA_SUBALLOCATION_TYPE_IMAGE_UNKNOWN:
++        return
++            suballocType2 == VMA_SUBALLOCATION_TYPE_IMAGE_UNKNOWN ||
++            suballocType2 == VMA_SUBALLOCATION_TYPE_IMAGE_LINEAR ||
++            suballocType2 == VMA_SUBALLOCATION_TYPE_IMAGE_OPTIMAL;
++    case VMA_SUBALLOCATION_TYPE_IMAGE_LINEAR:
++        return
++            suballocType2 == VMA_SUBALLOCATION_TYPE_IMAGE_OPTIMAL;
++    case VMA_SUBALLOCATION_TYPE_IMAGE_OPTIMAL:
++        return false;
++    default:
++        VMA_ASSERT(0);
++        return true;
++    }
++}
++
++static void VmaWriteMagicValue(void* pData, VkDeviceSize offset)
++{
++#if VMA_DEBUG_MARGIN > 0 && VMA_DEBUG_DETECT_CORRUPTION
++    uint32_t* pDst = (uint32_t*)((char*)pData + offset);
++    const size_t numberCount = VMA_DEBUG_MARGIN / sizeof(uint32_t);
++    for (size_t i = 0; i < numberCount; ++i, ++pDst)
++    {
++        *pDst = VMA_CORRUPTION_DETECTION_MAGIC_VALUE;
++    }
++#else
++    // no-op
++#endif
++}
++
++static bool VmaValidateMagicValue(const void* pData, VkDeviceSize offset)
++{
++#if VMA_DEBUG_MARGIN > 0 && VMA_DEBUG_DETECT_CORRUPTION
++    const uint32_t* pSrc = (const uint32_t*)((const char*)pData + offset);
++    const size_t numberCount = VMA_DEBUG_MARGIN / sizeof(uint32_t);
++    for (size_t i = 0; i < numberCount; ++i, ++pSrc)
++    {
++        if (*pSrc != VMA_CORRUPTION_DETECTION_MAGIC_VALUE)
++        {
++            return false;
++        }
++    }
++#endif
++    return true;
++}
++
++/*
++Fills structure with parameters of an example buffer to be used for transfers
++during GPU memory defragmentation.
++*/
++static void VmaFillGpuDefragmentationBufferCreateInfo(VkBufferCreateInfo& outBufCreateInfo)
++{
++    memset(&outBufCreateInfo, 0, sizeof(outBufCreateInfo));
++    outBufCreateInfo.sType = VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO;
++    outBufCreateInfo.usage = VK_BUFFER_USAGE_TRANSFER_SRC_BIT | VK_BUFFER_USAGE_TRANSFER_DST_BIT;
++    outBufCreateInfo.size = (VkDeviceSize)VMA_DEFAULT_LARGE_HEAP_BLOCK_SIZE; // Example size.
++}
++
++
++/*
++Performs binary search and returns iterator to first element that is greater or
++equal to (key), according to comparison (cmp).
++
++Cmp should return true if first argument is less than second argument.
++
++Returned value is the found element, if present in the collection or place where
++new element with value (key) should be inserted.
++*/
++template <typename CmpLess, typename IterT, typename KeyT>
++static IterT VmaBinaryFindFirstNotLess(IterT beg, IterT end, const KeyT& key, const CmpLess& cmp)
++{
++    size_t down = 0, up = (end - beg);
++    while (down < up)
++    {
++        const size_t mid = down + (up - down) / 2;  // Overflow-safe midpoint calculation
++        if (cmp(*(beg + mid), key))
++        {
++            down = mid + 1;
++        }
++        else
++        {
++            up = mid;
++        }
++    }
++    return beg + down;
++}
++
++template<typename CmpLess, typename IterT, typename KeyT>
++IterT VmaBinaryFindSorted(const IterT& beg, const IterT& end, const KeyT& value, const CmpLess& cmp)
++{
++    IterT it = VmaBinaryFindFirstNotLess<CmpLess, IterT, KeyT>(
++        beg, end, value, cmp);
++    if (it == end ||
++        (!cmp(*it, value) && !cmp(value, *it)))
++    {
++        return it;
++    }
++    return end;
++}
++
++/*
++Returns true if all pointers in the array are not-null and unique.
++Warning! O(n^2) complexity. Use only inside VMA_HEAVY_ASSERT.
++T must be pointer type, e.g. VmaAllocation, VmaPool.
++*/
++template<typename T>
++static bool VmaValidatePointerArray(uint32_t count, const T* arr)
++{
++    for (uint32_t i = 0; i < count; ++i)
++    {
++        const T iPtr = arr[i];
++        if (iPtr == VMA_NULL)
++        {
++            return false;
++        }
++        for (uint32_t j = i + 1; j < count; ++j)
++        {
++            if (iPtr == arr[j])
++            {
++                return false;
++            }
++        }
++    }
++    return true;
++}
++
++template<typename MainT, typename NewT>
++static inline void VmaPnextChainPushFront(MainT* mainStruct, NewT* newStruct)
++{
++    newStruct->pNext = mainStruct->pNext;
++    mainStruct->pNext = newStruct;
++}
++
++// This is the main algorithm that guides the selection of a memory type best for an allocation -
++// converts usage to required/preferred/not preferred flags.
++static bool FindMemoryPreferences(
++    bool isIntegratedGPU,
++    const VmaAllocationCreateInfo& allocCreateInfo,
++    VkFlags bufImgUsage, // VkBufferCreateInfo::usage or VkImageCreateInfo::usage. UINT32_MAX if unknown.
++    VkMemoryPropertyFlags& outRequiredFlags,
++    VkMemoryPropertyFlags& outPreferredFlags,
++    VkMemoryPropertyFlags& outNotPreferredFlags)
++{
++    outRequiredFlags = allocCreateInfo.requiredFlags;
++    outPreferredFlags = allocCreateInfo.preferredFlags;
++    outNotPreferredFlags = 0;
++
++    switch(allocCreateInfo.usage)
++    {
++    case VMA_MEMORY_USAGE_UNKNOWN:
++        break;
++    case VMA_MEMORY_USAGE_GPU_ONLY:
++        if(!isIntegratedGPU || (outPreferredFlags & VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT) == 0)
++        {
++            outPreferredFlags |= VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT;
++        }
++        break;
++    case VMA_MEMORY_USAGE_CPU_ONLY:
++        outRequiredFlags |= VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT;
++        break;
++    case VMA_MEMORY_USAGE_CPU_TO_GPU:
++        outRequiredFlags |= VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT;
++        if(!isIntegratedGPU || (outPreferredFlags & VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT) == 0)
++        {
++            outPreferredFlags |= VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT;
++        }
++        break;
++    case VMA_MEMORY_USAGE_GPU_TO_CPU:
++        outRequiredFlags |= VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT;
++        outPreferredFlags |= VK_MEMORY_PROPERTY_HOST_CACHED_BIT;
++        break;
++    case VMA_MEMORY_USAGE_CPU_COPY:
++        outNotPreferredFlags |= VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT;
++        break;
++    case VMA_MEMORY_USAGE_GPU_LAZILY_ALLOCATED:
++        outRequiredFlags |= VK_MEMORY_PROPERTY_LAZILY_ALLOCATED_BIT;
++        break;
++    case VMA_MEMORY_USAGE_AUTO:
++    case VMA_MEMORY_USAGE_AUTO_PREFER_DEVICE:
++    case VMA_MEMORY_USAGE_AUTO_PREFER_HOST:
++    {
++        if(bufImgUsage == UINT32_MAX)
++        {
++            VMA_ASSERT(0 && "VMA_MEMORY_USAGE_AUTO* values can only be used with functions like vmaCreateBuffer, vmaCreateImage so that the details of the created resource are known.");
++            return false;
++        }
++        // This relies on values of VK_IMAGE_USAGE_TRANSFER* being the same VK_BUFFER_IMAGE_TRANSFER*.
++        const bool deviceAccess = (bufImgUsage & ~(VK_BUFFER_USAGE_TRANSFER_DST_BIT | VK_BUFFER_USAGE_TRANSFER_SRC_BIT)) != 0;
++        const bool hostAccessSequentialWrite = (allocCreateInfo.flags & VMA_ALLOCATION_CREATE_HOST_ACCESS_SEQUENTIAL_WRITE_BIT) != 0;
++        const bool hostAccessRandom = (allocCreateInfo.flags & VMA_ALLOCATION_CREATE_HOST_ACCESS_RANDOM_BIT) != 0;
++        const bool hostAccessAllowTransferInstead = (allocCreateInfo.flags & VMA_ALLOCATION_CREATE_HOST_ACCESS_ALLOW_TRANSFER_INSTEAD_BIT) != 0;
++        const bool preferDevice = allocCreateInfo.usage == VMA_MEMORY_USAGE_AUTO_PREFER_DEVICE;
++        const bool preferHost = allocCreateInfo.usage == VMA_MEMORY_USAGE_AUTO_PREFER_HOST;
++
++        // CPU random access - e.g. a buffer written to or transferred from GPU to read back on CPU.
++        if(hostAccessRandom)
++        {
++            if(!isIntegratedGPU && deviceAccess && hostAccessAllowTransferInstead && !preferHost)
++            {
++                // Nice if it will end up in HOST_VISIBLE, but more importantly prefer DEVICE_LOCAL.
++                // Omitting HOST_VISIBLE here is intentional.
++                // In case there is DEVICE_LOCAL | HOST_VISIBLE | HOST_CACHED, it will pick that one.
++                // Otherwise, this will give same weight to DEVICE_LOCAL as HOST_VISIBLE | HOST_CACHED and select the former if occurs first on the list.
++                outPreferredFlags |= VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT | VK_MEMORY_PROPERTY_HOST_CACHED_BIT;
++            }
++            else
++            {
++                // Always CPU memory, cached.
++                outRequiredFlags |= VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_CACHED_BIT;
++            }
++        }
++        // CPU sequential write - may be CPU or host-visible GPU memory, uncached and write-combined.
++        else if(hostAccessSequentialWrite)
++        {
++            // Want uncached and write-combined.
++            outNotPreferredFlags |= VK_MEMORY_PROPERTY_HOST_CACHED_BIT;
++
++            if(!isIntegratedGPU && deviceAccess && hostAccessAllowTransferInstead && !preferHost)
++            {
++                outPreferredFlags |= VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT | VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT;
++            }
++            else
++            {
++                outRequiredFlags |= VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT;
++                // Direct GPU access, CPU sequential write (e.g. a dynamic uniform buffer updated every frame)
++                if(deviceAccess)
++                {
++                    // Could go to CPU memory or GPU BAR/unified. Up to the user to decide. If no preference, choose GPU memory.
++                    if(preferHost)
++                        outNotPreferredFlags |= VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT;
++                    else
++                        outPreferredFlags |= VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT;
++                }
++                // GPU no direct access, CPU sequential write (e.g. an upload buffer to be transferred to the GPU)
++                else
++                {
++                    // Could go to CPU memory or GPU BAR/unified. Up to the user to decide. If no preference, choose CPU memory.
++                    if(preferDevice)
++                        outPreferredFlags |= VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT;
++                    else
++                        outNotPreferredFlags |= VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT;
++                }
++            }
++        }
++        // No CPU access
++        else
++        {
++            // GPU access, no CPU access (e.g. a color attachment image) - prefer GPU memory
++            if(deviceAccess)
++            {
++                // ...unless there is a clear preference from the user not to do so.
++                if(preferHost)
++                    outNotPreferredFlags |= VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT;
++                else
++                    outPreferredFlags |= VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT;
++            }
++            // No direct GPU access, no CPU access, just transfers.
++            // It may be staging copy intended for e.g. preserving image for next frame (then better GPU memory) or
++            // a "swap file" copy to free some GPU memory (then better CPU memory).
++            // Up to the user to decide. If no preferece, assume the former and choose GPU memory.
++            if(preferHost)
++                outNotPreferredFlags |= VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT;
++            else
++                outPreferredFlags |= VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT;
++        }
++        break;
++    }
++    default:
++        VMA_ASSERT(0);
++    }
++
++    // Avoid DEVICE_COHERENT unless explicitly requested.
++    if(((allocCreateInfo.requiredFlags | allocCreateInfo.preferredFlags) &
++        (VK_MEMORY_PROPERTY_DEVICE_COHERENT_BIT_AMD_COPY | VK_MEMORY_PROPERTY_DEVICE_UNCACHED_BIT_AMD_COPY)) == 0)
++    {
++        outNotPreferredFlags |= VK_MEMORY_PROPERTY_DEVICE_UNCACHED_BIT_AMD_COPY;
++    }
++
++    return true;
++}
++
++////////////////////////////////////////////////////////////////////////////////
++// Memory allocation
++
++static void* VmaMalloc(const VkAllocationCallbacks* pAllocationCallbacks, size_t size, size_t alignment)
++{
++    void* result = VMA_NULL;
++    if ((pAllocationCallbacks != VMA_NULL) &&
++        (pAllocationCallbacks->pfnAllocation != VMA_NULL))
++    {
++        result = (*pAllocationCallbacks->pfnAllocation)(
++            pAllocationCallbacks->pUserData,
++            size,
++            alignment,
++            VK_SYSTEM_ALLOCATION_SCOPE_OBJECT);
++    }
++    else
++    {
++        result = VMA_SYSTEM_ALIGNED_MALLOC(size, alignment);
++    }
++    VMA_ASSERT(result != VMA_NULL && "CPU memory allocation failed.");
++    return result;
++}
++
++static void VmaFree(const VkAllocationCallbacks* pAllocationCallbacks, void* ptr)
++{
++    if ((pAllocationCallbacks != VMA_NULL) &&
++        (pAllocationCallbacks->pfnFree != VMA_NULL))
++    {
++        (*pAllocationCallbacks->pfnFree)(pAllocationCallbacks->pUserData, ptr);
++    }
++    else
++    {
++        VMA_SYSTEM_ALIGNED_FREE(ptr);
++    }
++}
++
++template<typename T>
++static T* VmaAllocate(const VkAllocationCallbacks* pAllocationCallbacks)
++{
++    return (T*)VmaMalloc(pAllocationCallbacks, sizeof(T), VMA_ALIGN_OF(T));
++}
++
++template<typename T>
++static T* VmaAllocateArray(const VkAllocationCallbacks* pAllocationCallbacks, size_t count)
++{
++    return (T*)VmaMalloc(pAllocationCallbacks, sizeof(T) * count, VMA_ALIGN_OF(T));
++}
++
++#define vma_new(allocator, type)   new(VmaAllocate<type>(allocator))(type)
++
++#define vma_new_array(allocator, type, count)   new(VmaAllocateArray<type>((allocator), (count)))(type)
++
++template<typename T>
++static void vma_delete(const VkAllocationCallbacks* pAllocationCallbacks, T* ptr)
++{
++    ptr->~T();
++    VmaFree(pAllocationCallbacks, ptr);
++}
++
++template<typename T>
++static void vma_delete_array(const VkAllocationCallbacks* pAllocationCallbacks, T* ptr, size_t count)
++{
++    if (ptr != VMA_NULL)
++    {
++        for (size_t i = count; i--; )
++        {
++            ptr[i].~T();
++        }
++        VmaFree(pAllocationCallbacks, ptr);
++    }
++}
++
++static char* VmaCreateStringCopy(const VkAllocationCallbacks* allocs, const char* srcStr)
++{
++    if (srcStr != VMA_NULL)
++    {
++        const size_t len = strlen(srcStr);
++        char* const result = vma_new_array(allocs, char, len + 1);
++        memcpy(result, srcStr, len + 1);
++        return result;
++    }
++    return VMA_NULL;
++}
++
++#if VMA_STATS_STRING_ENABLED
++static char* VmaCreateStringCopy(const VkAllocationCallbacks* allocs, const char* srcStr, size_t strLen)
++{
++    if (srcStr != VMA_NULL)
++    {
++        char* const result = vma_new_array(allocs, char, strLen + 1);
++        memcpy(result, srcStr, strLen);
++        result[strLen] = '\0';
++        return result;
++    }
++    return VMA_NULL;
++}
++#endif // VMA_STATS_STRING_ENABLED
++
++static void VmaFreeString(const VkAllocationCallbacks* allocs, char* str)
++{
++    if (str != VMA_NULL)
++    {
++        const size_t len = strlen(str);
++        vma_delete_array(allocs, str, len + 1);
++    }
++}
++
++template<typename CmpLess, typename VectorT>
++size_t VmaVectorInsertSorted(VectorT& vector, const typename VectorT::value_type& value)
++{
++    const size_t indexToInsert = VmaBinaryFindFirstNotLess(
++        vector.data(),
++        vector.data() + vector.size(),
++        value,
++        CmpLess()) - vector.data();
++    VmaVectorInsert(vector, indexToInsert, value);
++    return indexToInsert;
++}
++
++template<typename CmpLess, typename VectorT>
++bool VmaVectorRemoveSorted(VectorT& vector, const typename VectorT::value_type& value)
++{
++    CmpLess comparator;
++    typename VectorT::iterator it = VmaBinaryFindFirstNotLess(
++        vector.begin(),
++        vector.end(),
++        value,
++        comparator);
++    if ((it != vector.end()) && !comparator(*it, value) && !comparator(value, *it))
++    {
++        size_t indexToRemove = it - vector.begin();
++        VmaVectorRemove(vector, indexToRemove);
++        return true;
++    }
++    return false;
++}
++#endif // _VMA_FUNCTIONS
++
++#ifndef _VMA_STATISTICS_FUNCTIONS
++
++static void VmaClearStatistics(VmaStatistics& outStats)
++{
++    outStats.blockCount = 0;
++    outStats.allocationCount = 0;
++    outStats.blockBytes = 0;
++    outStats.allocationBytes = 0;
++}
++
++static void VmaAddStatistics(VmaStatistics& inoutStats, const VmaStatistics& src)
++{
++    inoutStats.blockCount += src.blockCount;
++    inoutStats.allocationCount += src.allocationCount;
++    inoutStats.blockBytes += src.blockBytes;
++    inoutStats.allocationBytes += src.allocationBytes;
++}
++
++static void VmaClearDetailedStatistics(VmaDetailedStatistics& outStats)
++{
++    VmaClearStatistics(outStats.statistics);
++    outStats.unusedRangeCount = 0;
++    outStats.allocationSizeMin = VK_WHOLE_SIZE;
++    outStats.allocationSizeMax = 0;
++    outStats.unusedRangeSizeMin = VK_WHOLE_SIZE;
++    outStats.unusedRangeSizeMax = 0;
++}
++
++static void VmaAddDetailedStatisticsAllocation(VmaDetailedStatistics& inoutStats, VkDeviceSize size)
++{
++    inoutStats.statistics.allocationCount++;
++    inoutStats.statistics.allocationBytes += size;
++    inoutStats.allocationSizeMin = VMA_MIN(inoutStats.allocationSizeMin, size);
++    inoutStats.allocationSizeMax = VMA_MAX(inoutStats.allocationSizeMax, size);
++}
++
++static void VmaAddDetailedStatisticsUnusedRange(VmaDetailedStatistics& inoutStats, VkDeviceSize size)
++{
++    inoutStats.unusedRangeCount++;
++    inoutStats.unusedRangeSizeMin = VMA_MIN(inoutStats.unusedRangeSizeMin, size);
++    inoutStats.unusedRangeSizeMax = VMA_MAX(inoutStats.unusedRangeSizeMax, size);
++}
++
++static void VmaAddDetailedStatistics(VmaDetailedStatistics& inoutStats, const VmaDetailedStatistics& src)
++{
++    VmaAddStatistics(inoutStats.statistics, src.statistics);
++    inoutStats.unusedRangeCount += src.unusedRangeCount;
++    inoutStats.allocationSizeMin = VMA_MIN(inoutStats.allocationSizeMin, src.allocationSizeMin);
++    inoutStats.allocationSizeMax = VMA_MAX(inoutStats.allocationSizeMax, src.allocationSizeMax);
++    inoutStats.unusedRangeSizeMin = VMA_MIN(inoutStats.unusedRangeSizeMin, src.unusedRangeSizeMin);
++    inoutStats.unusedRangeSizeMax = VMA_MAX(inoutStats.unusedRangeSizeMax, src.unusedRangeSizeMax);
++}
++
++#endif // _VMA_STATISTICS_FUNCTIONS
++
++#ifndef _VMA_MUTEX_LOCK
++// Helper RAII class to lock a mutex in constructor and unlock it in destructor (at the end of scope).
++struct VmaMutexLock
++{
++    VMA_CLASS_NO_COPY(VmaMutexLock)
++public:
++    VmaMutexLock(VMA_MUTEX& mutex, bool useMutex = true) :
++        m_pMutex(useMutex ? &mutex : VMA_NULL)
++    {
++        if (m_pMutex) { m_pMutex->Lock(); }
++    }
++    ~VmaMutexLock() {  if (m_pMutex) { m_pMutex->Unlock(); } }
++
++private:
++    VMA_MUTEX* m_pMutex;
++};
++
++// Helper RAII class to lock a RW mutex in constructor and unlock it in destructor (at the end of scope), for reading.
++struct VmaMutexLockRead
++{
++    VMA_CLASS_NO_COPY(VmaMutexLockRead)
++public:
++    VmaMutexLockRead(VMA_RW_MUTEX& mutex, bool useMutex) :
++        m_pMutex(useMutex ? &mutex : VMA_NULL)
++    {
++        if (m_pMutex) { m_pMutex->LockRead(); }
++    }
++    ~VmaMutexLockRead() { if (m_pMutex) { m_pMutex->UnlockRead(); } }
++
++private:
++    VMA_RW_MUTEX* m_pMutex;
++};
++
++// Helper RAII class to lock a RW mutex in constructor and unlock it in destructor (at the end of scope), for writing.
++struct VmaMutexLockWrite
++{
++    VMA_CLASS_NO_COPY(VmaMutexLockWrite)
++public:
++    VmaMutexLockWrite(VMA_RW_MUTEX& mutex, bool useMutex)
++        : m_pMutex(useMutex ? &mutex : VMA_NULL)
++    {
++        if (m_pMutex) { m_pMutex->LockWrite(); }
++    }
++    ~VmaMutexLockWrite() { if (m_pMutex) { m_pMutex->UnlockWrite(); } }
++
++private:
++    VMA_RW_MUTEX* m_pMutex;
++};
++
++#if VMA_DEBUG_GLOBAL_MUTEX
++    static VMA_MUTEX gDebugGlobalMutex;
++    #define VMA_DEBUG_GLOBAL_MUTEX_LOCK VmaMutexLock debugGlobalMutexLock(gDebugGlobalMutex, true);
++#else
++    #define VMA_DEBUG_GLOBAL_MUTEX_LOCK
++#endif
++#endif // _VMA_MUTEX_LOCK
++
++#ifndef _VMA_ATOMIC_TRANSACTIONAL_INCREMENT
++// An object that increments given atomic but decrements it back in the destructor unless Commit() is called.
++template<typename T>
++struct AtomicTransactionalIncrement
++{
++public:
++    typedef std::atomic<T> AtomicT;
++
++    ~AtomicTransactionalIncrement()
++    {
++        if(m_Atomic)
++            --(*m_Atomic);
++    }
++
++    void Commit() { m_Atomic = nullptr; }
++    T Increment(AtomicT* atomic)
++    {
++        m_Atomic = atomic;
++        return m_Atomic->fetch_add(1);
++    }
++
++private:
++    AtomicT* m_Atomic = nullptr;
++};
++#endif // _VMA_ATOMIC_TRANSACTIONAL_INCREMENT
++
++#ifndef _VMA_STL_ALLOCATOR
++// STL-compatible allocator.
++template<typename T>
++struct VmaStlAllocator
++{
++    const VkAllocationCallbacks* const m_pCallbacks;
++    typedef T value_type;
++
++    VmaStlAllocator(const VkAllocationCallbacks* pCallbacks) : m_pCallbacks(pCallbacks) {}
++    template<typename U>
++    VmaStlAllocator(const VmaStlAllocator<U>& src) : m_pCallbacks(src.m_pCallbacks) {}
++    VmaStlAllocator(const VmaStlAllocator&) = default;
++    VmaStlAllocator& operator=(const VmaStlAllocator&) = delete;
++
++    T* allocate(size_t n) { return VmaAllocateArray<T>(m_pCallbacks, n); }
++    void deallocate(T* p, size_t n) { VmaFree(m_pCallbacks, p); }
++
++    template<typename U>
++    bool operator==(const VmaStlAllocator<U>& rhs) const
++    {
++        return m_pCallbacks == rhs.m_pCallbacks;
++    }
++    template<typename U>
++    bool operator!=(const VmaStlAllocator<U>& rhs) const
++    {
++        return m_pCallbacks != rhs.m_pCallbacks;
++    }
++};
++#endif // _VMA_STL_ALLOCATOR
++
++#ifndef _VMA_VECTOR
++/* Class with interface compatible with subset of std::vector.
++T must be POD because constructors and destructors are not called and memcpy is
++used for these objects. */
++template<typename T, typename AllocatorT>
++class VmaVector
++{
++public:
++    typedef T value_type;
++    typedef T* iterator;
++    typedef const T* const_iterator;
++
++    VmaVector(const AllocatorT& allocator);
++    VmaVector(size_t count, const AllocatorT& allocator);
++    // This version of the constructor is here for compatibility with pre-C++14 std::vector.
++    // value is unused.
++    VmaVector(size_t count, const T& value, const AllocatorT& allocator) : VmaVector(count, allocator) {}
++    VmaVector(const VmaVector<T, AllocatorT>& src);
++    VmaVector& operator=(const VmaVector& rhs);
++    ~VmaVector() { VmaFree(m_Allocator.m_pCallbacks, m_pArray); }
++
++    bool empty() const { return m_Count == 0; }
++    size_t size() const { return m_Count; }
++    T* data() { return m_pArray; }
++    T& front() { VMA_HEAVY_ASSERT(m_Count > 0); return m_pArray[0]; }
++    T& back() { VMA_HEAVY_ASSERT(m_Count > 0); return m_pArray[m_Count - 1]; }
++    const T* data() const { return m_pArray; }
++    const T& front() const { VMA_HEAVY_ASSERT(m_Count > 0); return m_pArray[0]; }
++    const T& back() const { VMA_HEAVY_ASSERT(m_Count > 0); return m_pArray[m_Count - 1]; }
++
++    iterator begin() { return m_pArray; }
++    iterator end() { return m_pArray + m_Count; }
++    const_iterator cbegin() const { return m_pArray; }
++    const_iterator cend() const { return m_pArray + m_Count; }
++    const_iterator begin() const { return cbegin(); }
++    const_iterator end() const { return cend(); }
++
++    void pop_front() { VMA_HEAVY_ASSERT(m_Count > 0); remove(0); }
++    void pop_back() { VMA_HEAVY_ASSERT(m_Count > 0); resize(size() - 1); }
++    void push_front(const T& src) { insert(0, src); }
++
++    void push_back(const T& src);
++    void reserve(size_t newCapacity, bool freeMemory = false);
++    void resize(size_t newCount);
++    void clear() { resize(0); }
++    void shrink_to_fit();
++    void insert(size_t index, const T& src);
++    void remove(size_t index);
++
++    T& operator[](size_t index) { VMA_HEAVY_ASSERT(index < m_Count); return m_pArray[index]; }
++    const T& operator[](size_t index) const { VMA_HEAVY_ASSERT(index < m_Count); return m_pArray[index]; }
++
++private:
++    AllocatorT m_Allocator;
++    T* m_pArray;
++    size_t m_Count;
++    size_t m_Capacity;
++};
++
++#ifndef _VMA_VECTOR_FUNCTIONS
++template<typename T, typename AllocatorT>
++VmaVector<T, AllocatorT>::VmaVector(const AllocatorT& allocator)
++    : m_Allocator(allocator),
++    m_pArray(VMA_NULL),
++    m_Count(0),
++    m_Capacity(0) {}
++
++template<typename T, typename AllocatorT>
++VmaVector<T, AllocatorT>::VmaVector(size_t count, const AllocatorT& allocator)
++    : m_Allocator(allocator),
++    m_pArray(count ? (T*)VmaAllocateArray<T>(allocator.m_pCallbacks, count) : VMA_NULL),
++    m_Count(count),
++    m_Capacity(count) {}
++
++template<typename T, typename AllocatorT>
++VmaVector<T, AllocatorT>::VmaVector(const VmaVector& src)
++    : m_Allocator(src.m_Allocator),
++    m_pArray(src.m_Count ? (T*)VmaAllocateArray<T>(src.m_Allocator.m_pCallbacks, src.m_Count) : VMA_NULL),
++    m_Count(src.m_Count),
++    m_Capacity(src.m_Count)
++{
++    if (m_Count != 0)
++    {
++        memcpy(m_pArray, src.m_pArray, m_Count * sizeof(T));
++    }
++}
++
++template<typename T, typename AllocatorT>
++VmaVector<T, AllocatorT>& VmaVector<T, AllocatorT>::operator=(const VmaVector& rhs)
++{
++    if (&rhs != this)
++    {
++        resize(rhs.m_Count);
++        if (m_Count != 0)
++        {
++            memcpy(m_pArray, rhs.m_pArray, m_Count * sizeof(T));
++        }
++    }
++    return *this;
++}
++
++template<typename T, typename AllocatorT>
++void VmaVector<T, AllocatorT>::push_back(const T& src)
++{
++    const size_t newIndex = size();
++    resize(newIndex + 1);
++    m_pArray[newIndex] = src;
++}
++
++template<typename T, typename AllocatorT>
++void VmaVector<T, AllocatorT>::reserve(size_t newCapacity, bool freeMemory)
++{
++    newCapacity = VMA_MAX(newCapacity, m_Count);
++
++    if ((newCapacity < m_Capacity) && !freeMemory)
++    {
++        newCapacity = m_Capacity;
++    }
++
++    if (newCapacity != m_Capacity)
++    {
++        T* const newArray = newCapacity ? VmaAllocateArray<T>(m_Allocator, newCapacity) : VMA_NULL;
++        if (m_Count != 0)
++        {
++            memcpy(newArray, m_pArray, m_Count * sizeof(T));
++        }
++        VmaFree(m_Allocator.m_pCallbacks, m_pArray);
++        m_Capacity = newCapacity;
++        m_pArray = newArray;
++    }
++}
++
++template<typename T, typename AllocatorT>
++void VmaVector<T, AllocatorT>::resize(size_t newCount)
++{
++    size_t newCapacity = m_Capacity;
++    if (newCount > m_Capacity)
++    {
++        newCapacity = VMA_MAX(newCount, VMA_MAX(m_Capacity * 3 / 2, (size_t)8));
++    }
++
++    if (newCapacity != m_Capacity)
++    {
++        T* const newArray = newCapacity ? VmaAllocateArray<T>(m_Allocator.m_pCallbacks, newCapacity) : VMA_NULL;
++        const size_t elementsToCopy = VMA_MIN(m_Count, newCount);
++        if (elementsToCopy != 0)
++        {
++            memcpy(newArray, m_pArray, elementsToCopy * sizeof(T));
++        }
++        VmaFree(m_Allocator.m_pCallbacks, m_pArray);
++        m_Capacity = newCapacity;
++        m_pArray = newArray;
++    }
++
++    m_Count = newCount;
++}
++
++template<typename T, typename AllocatorT>
++void VmaVector<T, AllocatorT>::shrink_to_fit()
++{
++    if (m_Capacity > m_Count)
++    {
++        T* newArray = VMA_NULL;
++        if (m_Count > 0)
++        {
++            newArray = VmaAllocateArray<T>(m_Allocator.m_pCallbacks, m_Count);
++            memcpy(newArray, m_pArray, m_Count * sizeof(T));
++        }
++        VmaFree(m_Allocator.m_pCallbacks, m_pArray);
++        m_Capacity = m_Count;
++        m_pArray = newArray;
++    }
++}
++
++template<typename T, typename AllocatorT>
++void VmaVector<T, AllocatorT>::insert(size_t index, const T& src)
++{
++    VMA_HEAVY_ASSERT(index <= m_Count);
++    const size_t oldCount = size();
++    resize(oldCount + 1);
++    if (index < oldCount)
++    {
++        memmove(m_pArray + (index + 1), m_pArray + index, (oldCount - index) * sizeof(T));
++    }
++    m_pArray[index] = src;
++}
++
++template<typename T, typename AllocatorT>
++void VmaVector<T, AllocatorT>::remove(size_t index)
++{
++    VMA_HEAVY_ASSERT(index < m_Count);
++    const size_t oldCount = size();
++    if (index < oldCount - 1)
++    {
++        memmove(m_pArray + index, m_pArray + (index + 1), (oldCount - index - 1) * sizeof(T));
++    }
++    resize(oldCount - 1);
++}
++#endif // _VMA_VECTOR_FUNCTIONS
++
++template<typename T, typename allocatorT>
++static void VmaVectorInsert(VmaVector<T, allocatorT>& vec, size_t index, const T& item)
++{
++    vec.insert(index, item);
++}
++
++template<typename T, typename allocatorT>
++static void VmaVectorRemove(VmaVector<T, allocatorT>& vec, size_t index)
++{
++    vec.remove(index);
++}
++#endif // _VMA_VECTOR
++
++#ifndef _VMA_SMALL_VECTOR
++/*
++This is a vector (a variable-sized array), optimized for the case when the array is small.
++
++It contains some number of elements in-place, which allows it to avoid heap allocation
++when the actual number of elements is below that threshold. This allows normal "small"
++cases to be fast without losing generality for large inputs.
++*/
++template<typename T, typename AllocatorT, size_t N>
++class VmaSmallVector
++{
++public:
++    typedef T value_type;
++    typedef T* iterator;
++
++    VmaSmallVector(const AllocatorT& allocator);
++    VmaSmallVector(size_t count, const AllocatorT& allocator);
++    template<typename SrcT, typename SrcAllocatorT, size_t SrcN>
++    VmaSmallVector(const VmaSmallVector<SrcT, SrcAllocatorT, SrcN>&) = delete;
++    template<typename SrcT, typename SrcAllocatorT, size_t SrcN>
++    VmaSmallVector<T, AllocatorT, N>& operator=(const VmaSmallVector<SrcT, SrcAllocatorT, SrcN>&) = delete;
++    ~VmaSmallVector() = default;
++
++    bool empty() const { return m_Count == 0; }
++    size_t size() const { return m_Count; }
++    T* data() { return m_Count > N ? m_DynamicArray.data() : m_StaticArray; }
++    T& front() { VMA_HEAVY_ASSERT(m_Count > 0); return data()[0]; }
++    T& back() { VMA_HEAVY_ASSERT(m_Count > 0); return data()[m_Count - 1]; }
++    const T* data() const { return m_Count > N ? m_DynamicArray.data() : m_StaticArray; }
++    const T& front() const { VMA_HEAVY_ASSERT(m_Count > 0); return data()[0]; }
++    const T& back() const { VMA_HEAVY_ASSERT(m_Count > 0); return data()[m_Count - 1]; }
++
++    iterator begin() { return data(); }
++    iterator end() { return data() + m_Count; }
++
++    void pop_front() { VMA_HEAVY_ASSERT(m_Count > 0); remove(0); }
++    void pop_back() { VMA_HEAVY_ASSERT(m_Count > 0); resize(size() - 1); }
++    void push_front(const T& src) { insert(0, src); }
++
++    void push_back(const T& src);
++    void resize(size_t newCount, bool freeMemory = false);
++    void clear(bool freeMemory = false);
++    void insert(size_t index, const T& src);
++    void remove(size_t index);
++
++    T& operator[](size_t index) { VMA_HEAVY_ASSERT(index < m_Count); return data()[index]; }
++    const T& operator[](size_t index) const { VMA_HEAVY_ASSERT(index < m_Count); return data()[index]; }
++
++private:
++    size_t m_Count;
++    T m_StaticArray[N]; // Used when m_Size <= N
++    VmaVector<T, AllocatorT> m_DynamicArray; // Used when m_Size > N
++};
++
++#ifndef _VMA_SMALL_VECTOR_FUNCTIONS
++template<typename T, typename AllocatorT, size_t N>
++VmaSmallVector<T, AllocatorT, N>::VmaSmallVector(const AllocatorT& allocator)
++    : m_Count(0),
++    m_DynamicArray(allocator) {}
++
++template<typename T, typename AllocatorT, size_t N>
++VmaSmallVector<T, AllocatorT, N>::VmaSmallVector(size_t count, const AllocatorT& allocator)
++    : m_Count(count),
++    m_DynamicArray(count > N ? count : 0, allocator) {}
++
++template<typename T, typename AllocatorT, size_t N>
++void VmaSmallVector<T, AllocatorT, N>::push_back(const T& src)
++{
++    const size_t newIndex = size();
++    resize(newIndex + 1);
++    data()[newIndex] = src;
++}
++
++template<typename T, typename AllocatorT, size_t N>
++void VmaSmallVector<T, AllocatorT, N>::resize(size_t newCount, bool freeMemory)
++{
++    if (newCount > N && m_Count > N)
++    {
++        // Any direction, staying in m_DynamicArray
++        m_DynamicArray.resize(newCount);
++        if (freeMemory)
++        {
++            m_DynamicArray.shrink_to_fit();
++        }
++    }
++    else if (newCount > N && m_Count <= N)
++    {
++        // Growing, moving from m_StaticArray to m_DynamicArray
++        m_DynamicArray.resize(newCount);
++        if (m_Count > 0)
++        {
++            memcpy(m_DynamicArray.data(), m_StaticArray, m_Count * sizeof(T));
++        }
++    }
++    else if (newCount <= N && m_Count > N)
++    {
++        // Shrinking, moving from m_DynamicArray to m_StaticArray
++        if (newCount > 0)
++        {
++            memcpy(m_StaticArray, m_DynamicArray.data(), newCount * sizeof(T));
++        }
++        m_DynamicArray.resize(0);
++        if (freeMemory)
++        {
++            m_DynamicArray.shrink_to_fit();
++        }
++    }
++    else
++    {
++        // Any direction, staying in m_StaticArray - nothing to do here
++    }
++    m_Count = newCount;
++}
++
++template<typename T, typename AllocatorT, size_t N>
++void VmaSmallVector<T, AllocatorT, N>::clear(bool freeMemory)
++{
++    m_DynamicArray.clear();
++    if (freeMemory)
++    {
++        m_DynamicArray.shrink_to_fit();
++    }
++    m_Count = 0;
++}
++
++template<typename T, typename AllocatorT, size_t N>
++void VmaSmallVector<T, AllocatorT, N>::insert(size_t index, const T& src)
++{
++    VMA_HEAVY_ASSERT(index <= m_Count);
++    const size_t oldCount = size();
++    resize(oldCount + 1);
++    T* const dataPtr = data();
++    if (index < oldCount)
++    {
++        //  I know, this could be more optimal for case where memmove can be memcpy directly from m_StaticArray to m_DynamicArray.
++        memmove(dataPtr + (index + 1), dataPtr + index, (oldCount - index) * sizeof(T));
++    }
++    dataPtr[index] = src;
++}
++
++template<typename T, typename AllocatorT, size_t N>
++void VmaSmallVector<T, AllocatorT, N>::remove(size_t index)
++{
++    VMA_HEAVY_ASSERT(index < m_Count);
++    const size_t oldCount = size();
++    if (index < oldCount - 1)
++    {
++        //  I know, this could be more optimal for case where memmove can be memcpy directly from m_DynamicArray to m_StaticArray.
++        T* const dataPtr = data();
++        memmove(dataPtr + index, dataPtr + (index + 1), (oldCount - index - 1) * sizeof(T));
++    }
++    resize(oldCount - 1);
++}
++#endif // _VMA_SMALL_VECTOR_FUNCTIONS
++#endif // _VMA_SMALL_VECTOR
++
++#ifndef _VMA_POOL_ALLOCATOR
++/*
++Allocator for objects of type T using a list of arrays (pools) to speed up
++allocation. Number of elements that can be allocated is not bounded because
++allocator can create multiple blocks.
++*/
++template<typename T>
++class VmaPoolAllocator
++{
++    VMA_CLASS_NO_COPY(VmaPoolAllocator)
++public:
++    VmaPoolAllocator(const VkAllocationCallbacks* pAllocationCallbacks, uint32_t firstBlockCapacity);
++    ~VmaPoolAllocator();
++    template<typename... Types> T* Alloc(Types&&... args);
++    void Free(T* ptr);
++
++private:
++    union Item
++    {
++        uint32_t NextFreeIndex;
++        alignas(T) char Value[sizeof(T)];
++    };
++    struct ItemBlock
++    {
++        Item* pItems;
++        uint32_t Capacity;
++        uint32_t FirstFreeIndex;
++    };
++
++    const VkAllocationCallbacks* m_pAllocationCallbacks;
++    const uint32_t m_FirstBlockCapacity;
++    VmaVector<ItemBlock, VmaStlAllocator<ItemBlock>> m_ItemBlocks;
++
++    ItemBlock& CreateNewBlock();
++};
++
++#ifndef _VMA_POOL_ALLOCATOR_FUNCTIONS
++template<typename T>
++VmaPoolAllocator<T>::VmaPoolAllocator(const VkAllocationCallbacks* pAllocationCallbacks, uint32_t firstBlockCapacity)
++    : m_pAllocationCallbacks(pAllocationCallbacks),
++    m_FirstBlockCapacity(firstBlockCapacity),
++    m_ItemBlocks(VmaStlAllocator<ItemBlock>(pAllocationCallbacks))
++{
++    VMA_ASSERT(m_FirstBlockCapacity > 1);
++}
++
++template<typename T>
++VmaPoolAllocator<T>::~VmaPoolAllocator()
++{
++    for (size_t i = m_ItemBlocks.size(); i--;)
++        vma_delete_array(m_pAllocationCallbacks, m_ItemBlocks[i].pItems, m_ItemBlocks[i].Capacity);
++    m_ItemBlocks.clear();
++}
++
++template<typename T>
++template<typename... Types> T* VmaPoolAllocator<T>::Alloc(Types&&... args)
++{
++    for (size_t i = m_ItemBlocks.size(); i--; )
++    {
++        ItemBlock& block = m_ItemBlocks[i];
++        // This block has some free items: Use first one.
++        if (block.FirstFreeIndex != UINT32_MAX)
++        {
++            Item* const pItem = &block.pItems[block.FirstFreeIndex];
++            block.FirstFreeIndex = pItem->NextFreeIndex;
++            T* result = (T*)&pItem->Value;
++            new(result)T(std::forward<Types>(args)...); // Explicit constructor call.
++            return result;
++        }
++    }
++
++    // No block has free item: Create new one and use it.
++    ItemBlock& newBlock = CreateNewBlock();
++    Item* const pItem = &newBlock.pItems[0];
++    newBlock.FirstFreeIndex = pItem->NextFreeIndex;
++    T* result = (T*)&pItem->Value;
++    new(result) T(std::forward<Types>(args)...); // Explicit constructor call.
++    return result;
++}
++
++template<typename T>
++void VmaPoolAllocator<T>::Free(T* ptr)
++{
++    // Search all memory blocks to find ptr.
++    for (size_t i = m_ItemBlocks.size(); i--; )
++    {
++        ItemBlock& block = m_ItemBlocks[i];
++
++        // Casting to union.
++        Item* pItemPtr;
++        memcpy(&pItemPtr, &ptr, sizeof(pItemPtr));
++
++        // Check if pItemPtr is in address range of this block.
++        if ((pItemPtr >= block.pItems) && (pItemPtr < block.pItems + block.Capacity))
++        {
++            ptr->~T(); // Explicit destructor call.
++            const uint32_t index = static_cast<uint32_t>(pItemPtr - block.pItems);
++            pItemPtr->NextFreeIndex = block.FirstFreeIndex;
++            block.FirstFreeIndex = index;
++            return;
++        }
++    }
++    VMA_ASSERT(0 && "Pointer doesn't belong to this memory pool.");
++}
++
++template<typename T>
++typename VmaPoolAllocator<T>::ItemBlock& VmaPoolAllocator<T>::CreateNewBlock()
++{
++    const uint32_t newBlockCapacity = m_ItemBlocks.empty() ?
++        m_FirstBlockCapacity : m_ItemBlocks.back().Capacity * 3 / 2;
++
++    const ItemBlock newBlock =
++    {
++        vma_new_array(m_pAllocationCallbacks, Item, newBlockCapacity),
++        newBlockCapacity,
++        0
++    };
++
++    m_ItemBlocks.push_back(newBlock);
++
++    // Setup singly-linked list of all free items in this block.
++    for (uint32_t i = 0; i < newBlockCapacity - 1; ++i)
++        newBlock.pItems[i].NextFreeIndex = i + 1;
++    newBlock.pItems[newBlockCapacity - 1].NextFreeIndex = UINT32_MAX;
++    return m_ItemBlocks.back();
++}
++#endif // _VMA_POOL_ALLOCATOR_FUNCTIONS
++#endif // _VMA_POOL_ALLOCATOR
++
++#ifndef _VMA_RAW_LIST
++template<typename T>
++struct VmaListItem
++{
++    VmaListItem* pPrev;
++    VmaListItem* pNext;
++    T Value;
++};
++
++// Doubly linked list.
++template<typename T>
++class VmaRawList
++{
++    VMA_CLASS_NO_COPY(VmaRawList)
++public:
++    typedef VmaListItem<T> ItemType;
++
++    VmaRawList(const VkAllocationCallbacks* pAllocationCallbacks);
++    // Intentionally not calling Clear, because that would be unnecessary
++    // computations to return all items to m_ItemAllocator as free.
++    ~VmaRawList() = default;
++
++    size_t GetCount() const { return m_Count; }
++    bool IsEmpty() const { return m_Count == 0; }
++
++    ItemType* Front() { return m_pFront; }
++    ItemType* Back() { return m_pBack; }
++    const ItemType* Front() const { return m_pFront; }
++    const ItemType* Back() const { return m_pBack; }
++
++    ItemType* PushFront();
++    ItemType* PushBack();
++    ItemType* PushFront(const T& value);
++    ItemType* PushBack(const T& value);
++    void PopFront();
++    void PopBack();
++
++    // Item can be null - it means PushBack.
++    ItemType* InsertBefore(ItemType* pItem);
++    // Item can be null - it means PushFront.
++    ItemType* InsertAfter(ItemType* pItem);
++    ItemType* InsertBefore(ItemType* pItem, const T& value);
++    ItemType* InsertAfter(ItemType* pItem, const T& value);
++
++    void Clear();
++    void Remove(ItemType* pItem);
++
++private:
++    const VkAllocationCallbacks* const m_pAllocationCallbacks;
++    VmaPoolAllocator<ItemType> m_ItemAllocator;
++    ItemType* m_pFront;
++    ItemType* m_pBack;
++    size_t m_Count;
++};
++
++#ifndef _VMA_RAW_LIST_FUNCTIONS
++template<typename T>
++VmaRawList<T>::VmaRawList(const VkAllocationCallbacks* pAllocationCallbacks)
++    : m_pAllocationCallbacks(pAllocationCallbacks),
++    m_ItemAllocator(pAllocationCallbacks, 128),
++    m_pFront(VMA_NULL),
++    m_pBack(VMA_NULL),
++    m_Count(0) {}
++
++template<typename T>
++VmaListItem<T>* VmaRawList<T>::PushFront()
++{
++    ItemType* const pNewItem = m_ItemAllocator.Alloc();
++    pNewItem->pPrev = VMA_NULL;
++    if (IsEmpty())
++    {
++        pNewItem->pNext = VMA_NULL;
++        m_pFront = pNewItem;
++        m_pBack = pNewItem;
++        m_Count = 1;
++    }
++    else
++    {
++        pNewItem->pNext = m_pFront;
++        m_pFront->pPrev = pNewItem;
++        m_pFront = pNewItem;
++        ++m_Count;
++    }
++    return pNewItem;
++}
++
++template<typename T>
++VmaListItem<T>* VmaRawList<T>::PushBack()
++{
++    ItemType* const pNewItem = m_ItemAllocator.Alloc();
++    pNewItem->pNext = VMA_NULL;
++    if(IsEmpty())
++    {
++        pNewItem->pPrev = VMA_NULL;
++        m_pFront = pNewItem;
++        m_pBack = pNewItem;
++        m_Count = 1;
++    }
++    else
++    {
++        pNewItem->pPrev = m_pBack;
++        m_pBack->pNext = pNewItem;
++        m_pBack = pNewItem;
++        ++m_Count;
++    }
++    return pNewItem;
++}
++
++template<typename T>
++VmaListItem<T>* VmaRawList<T>::PushFront(const T& value)
++{
++    ItemType* const pNewItem = PushFront();
++    pNewItem->Value = value;
++    return pNewItem;
++}
++
++template<typename T>
++VmaListItem<T>* VmaRawList<T>::PushBack(const T& value)
++{
++    ItemType* const pNewItem = PushBack();
++    pNewItem->Value = value;
++    return pNewItem;
++}
++
++template<typename T>
++void VmaRawList<T>::PopFront()
++{
++    VMA_HEAVY_ASSERT(m_Count > 0);
++    ItemType* const pFrontItem = m_pFront;
++    ItemType* const pNextItem = pFrontItem->pNext;
++    if (pNextItem != VMA_NULL)
++    {
++        pNextItem->pPrev = VMA_NULL;
++    }
++    m_pFront = pNextItem;
++    m_ItemAllocator.Free(pFrontItem);
++    --m_Count;
++}
++
++template<typename T>
++void VmaRawList<T>::PopBack()
++{
++    VMA_HEAVY_ASSERT(m_Count > 0);
++    ItemType* const pBackItem = m_pBack;
++    ItemType* const pPrevItem = pBackItem->pPrev;
++    if(pPrevItem != VMA_NULL)
++    {
++        pPrevItem->pNext = VMA_NULL;
++    }
++    m_pBack = pPrevItem;
++    m_ItemAllocator.Free(pBackItem);
++    --m_Count;
++}
++
++template<typename T>
++void VmaRawList<T>::Clear()
++{
++    if (IsEmpty() == false)
++    {
++        ItemType* pItem = m_pBack;
++        while (pItem != VMA_NULL)
++        {
++            ItemType* const pPrevItem = pItem->pPrev;
++            m_ItemAllocator.Free(pItem);
++            pItem = pPrevItem;
++        }
++        m_pFront = VMA_NULL;
++        m_pBack = VMA_NULL;
++        m_Count = 0;
++    }
++}
++
++template<typename T>
++void VmaRawList<T>::Remove(ItemType* pItem)
++{
++    VMA_HEAVY_ASSERT(pItem != VMA_NULL);
++    VMA_HEAVY_ASSERT(m_Count > 0);
++
++    if(pItem->pPrev != VMA_NULL)
++    {
++        pItem->pPrev->pNext = pItem->pNext;
++    }
++    else
++    {
++        VMA_HEAVY_ASSERT(m_pFront == pItem);
++        m_pFront = pItem->pNext;
++    }
++
++    if(pItem->pNext != VMA_NULL)
++    {
++        pItem->pNext->pPrev = pItem->pPrev;
++    }
++    else
++    {
++        VMA_HEAVY_ASSERT(m_pBack == pItem);
++        m_pBack = pItem->pPrev;
++    }
++
++    m_ItemAllocator.Free(pItem);
++    --m_Count;
++}
++
++template<typename T>
++VmaListItem<T>* VmaRawList<T>::InsertBefore(ItemType* pItem)
++{
++    if(pItem != VMA_NULL)
++    {
++        ItemType* const prevItem = pItem->pPrev;
++        ItemType* const newItem = m_ItemAllocator.Alloc();
++        newItem->pPrev = prevItem;
++        newItem->pNext = pItem;
++        pItem->pPrev = newItem;
++        if(prevItem != VMA_NULL)
++        {
++            prevItem->pNext = newItem;
++        }
++        else
++        {
++            VMA_HEAVY_ASSERT(m_pFront == pItem);
++            m_pFront = newItem;
++        }
++        ++m_Count;
++        return newItem;
++    }
++    else
++        return PushBack();
++}
++
++template<typename T>
++VmaListItem<T>* VmaRawList<T>::InsertAfter(ItemType* pItem)
++{
++    if(pItem != VMA_NULL)
++    {
++        ItemType* const nextItem = pItem->pNext;
++        ItemType* const newItem = m_ItemAllocator.Alloc();
++        newItem->pNext = nextItem;
++        newItem->pPrev = pItem;
++        pItem->pNext = newItem;
++        if(nextItem != VMA_NULL)
++        {
++            nextItem->pPrev = newItem;
++        }
++        else
++        {
++            VMA_HEAVY_ASSERT(m_pBack == pItem);
++            m_pBack = newItem;
++        }
++        ++m_Count;
++        return newItem;
++    }
++    else
++        return PushFront();
++}
++
++template<typename T>
++VmaListItem<T>* VmaRawList<T>::InsertBefore(ItemType* pItem, const T& value)
++{
++    ItemType* const newItem = InsertBefore(pItem);
++    newItem->Value = value;
++    return newItem;
++}
++
++template<typename T>
++VmaListItem<T>* VmaRawList<T>::InsertAfter(ItemType* pItem, const T& value)
++{
++    ItemType* const newItem = InsertAfter(pItem);
++    newItem->Value = value;
++    return newItem;
++}
++#endif // _VMA_RAW_LIST_FUNCTIONS
++#endif // _VMA_RAW_LIST
++
++#ifndef _VMA_LIST
++template<typename T, typename AllocatorT>
++class VmaList
++{
++    VMA_CLASS_NO_COPY(VmaList)
++public:
++    class reverse_iterator;
++    class const_iterator;
++    class const_reverse_iterator;
++
++    class iterator
++    {
++        friend class const_iterator;
++        friend class VmaList<T, AllocatorT>;
++    public:
++        iterator() :  m_pList(VMA_NULL), m_pItem(VMA_NULL) {}
++        iterator(const reverse_iterator& src) : m_pList(src.m_pList), m_pItem(src.m_pItem) {}
++
++        T& operator*() const { VMA_HEAVY_ASSERT(m_pItem != VMA_NULL); return m_pItem->Value; }
++        T* operator->() const { VMA_HEAVY_ASSERT(m_pItem != VMA_NULL); return &m_pItem->Value; }
++
++        bool operator==(const iterator& rhs) const { VMA_HEAVY_ASSERT(m_pList == rhs.m_pList); return m_pItem == rhs.m_pItem; }
++        bool operator!=(const iterator& rhs) const { VMA_HEAVY_ASSERT(m_pList == rhs.m_pList); return m_pItem != rhs.m_pItem; }
++
++        iterator operator++(int) { iterator result = *this; ++*this; return result; }
++        iterator operator--(int) { iterator result = *this; --*this; return result; }
++
++        iterator& operator++() { VMA_HEAVY_ASSERT(m_pItem != VMA_NULL); m_pItem = m_pItem->pNext; return *this; }
++        iterator& operator--();
++
++    private:
++        VmaRawList<T>* m_pList;
++        VmaListItem<T>* m_pItem;
++
++        iterator(VmaRawList<T>* pList, VmaListItem<T>* pItem) : m_pList(pList),  m_pItem(pItem) {}
++    };
++    class reverse_iterator
++    {
++        friend class const_reverse_iterator;
++        friend class VmaList<T, AllocatorT>;
++    public:
++        reverse_iterator() : m_pList(VMA_NULL), m_pItem(VMA_NULL) {}
++        reverse_iterator(const iterator& src) : m_pList(src.m_pList), m_pItem(src.m_pItem) {}
++
++        T& operator*() const { VMA_HEAVY_ASSERT(m_pItem != VMA_NULL); return m_pItem->Value; }
++        T* operator->() const { VMA_HEAVY_ASSERT(m_pItem != VMA_NULL); return &m_pItem->Value; }
++
++        bool operator==(const reverse_iterator& rhs) const { VMA_HEAVY_ASSERT(m_pList == rhs.m_pList); return m_pItem == rhs.m_pItem; }
++        bool operator!=(const reverse_iterator& rhs) const { VMA_HEAVY_ASSERT(m_pList == rhs.m_pList); return m_pItem != rhs.m_pItem; }
++
++        reverse_iterator operator++(int) { reverse_iterator result = *this; ++* this; return result; }
++        reverse_iterator operator--(int) { reverse_iterator result = *this; --* this; return result; }
++
++        reverse_iterator& operator++() { VMA_HEAVY_ASSERT(m_pItem != VMA_NULL); m_pItem = m_pItem->pPrev; return *this; }
++        reverse_iterator& operator--();
++
++    private:
++        VmaRawList<T>* m_pList;
++        VmaListItem<T>* m_pItem;
++
++        reverse_iterator(VmaRawList<T>* pList, VmaListItem<T>* pItem) : m_pList(pList),  m_pItem(pItem) {}
++    };
++    class const_iterator
++    {
++        friend class VmaList<T, AllocatorT>;
++    public:
++        const_iterator() : m_pList(VMA_NULL), m_pItem(VMA_NULL) {}
++        const_iterator(const iterator& src) : m_pList(src.m_pList), m_pItem(src.m_pItem) {}
++        const_iterator(const reverse_iterator& src) : m_pList(src.m_pList), m_pItem(src.m_pItem) {}
++
++        iterator drop_const() { return { const_cast<VmaRawList<T>*>(m_pList), const_cast<VmaListItem<T>*>(m_pItem) }; }
++
++        const T& operator*() const { VMA_HEAVY_ASSERT(m_pItem != VMA_NULL); return m_pItem->Value; }
++        const T* operator->() const { VMA_HEAVY_ASSERT(m_pItem != VMA_NULL); return &m_pItem->Value; }
++
++        bool operator==(const const_iterator& rhs) const { VMA_HEAVY_ASSERT(m_pList == rhs.m_pList); return m_pItem == rhs.m_pItem; }
++        bool operator!=(const const_iterator& rhs) const { VMA_HEAVY_ASSERT(m_pList == rhs.m_pList); return m_pItem != rhs.m_pItem; }
++
++        const_iterator operator++(int) { const_iterator result = *this; ++* this; return result; }
++        const_iterator operator--(int) { const_iterator result = *this; --* this; return result; }
++
++        const_iterator& operator++() { VMA_HEAVY_ASSERT(m_pItem != VMA_NULL); m_pItem = m_pItem->pNext; return *this; }
++        const_iterator& operator--();
++
++    private:
++        const VmaRawList<T>* m_pList;
++        const VmaListItem<T>* m_pItem;
++
++        const_iterator(const VmaRawList<T>* pList, const VmaListItem<T>* pItem) : m_pList(pList), m_pItem(pItem) {}
++    };
++    class const_reverse_iterator
++    {
++        friend class VmaList<T, AllocatorT>;
++    public:
++        const_reverse_iterator() : m_pList(VMA_NULL), m_pItem(VMA_NULL) {}
++        const_reverse_iterator(const reverse_iterator& src) : m_pList(src.m_pList), m_pItem(src.m_pItem) {}
++        const_reverse_iterator(const iterator& src) : m_pList(src.m_pList), m_pItem(src.m_pItem) {}
++
++        reverse_iterator drop_const() { return { const_cast<VmaRawList<T>*>(m_pList), const_cast<VmaListItem<T>*>(m_pItem) }; }
++
++        const T& operator*() const { VMA_HEAVY_ASSERT(m_pItem != VMA_NULL); return m_pItem->Value; }
++        const T* operator->() const { VMA_HEAVY_ASSERT(m_pItem != VMA_NULL); return &m_pItem->Value; }
++
++        bool operator==(const const_reverse_iterator& rhs) const { VMA_HEAVY_ASSERT(m_pList == rhs.m_pList); return m_pItem == rhs.m_pItem; }
++        bool operator!=(const const_reverse_iterator& rhs) const { VMA_HEAVY_ASSERT(m_pList == rhs.m_pList); return m_pItem != rhs.m_pItem; }
++
++        const_reverse_iterator operator++(int) { const_reverse_iterator result = *this; ++* this; return result; }
++        const_reverse_iterator operator--(int) { const_reverse_iterator result = *this; --* this; return result; }
++
++        const_reverse_iterator& operator++() { VMA_HEAVY_ASSERT(m_pItem != VMA_NULL); m_pItem = m_pItem->pPrev; return *this; }
++        const_reverse_iterator& operator--();
++
++    private:
++        const VmaRawList<T>* m_pList;
++        const VmaListItem<T>* m_pItem;
++
++        const_reverse_iterator(const VmaRawList<T>* pList, const VmaListItem<T>* pItem) : m_pList(pList), m_pItem(pItem) {}
++    };
++
++    VmaList(const AllocatorT& allocator) : m_RawList(allocator.m_pCallbacks) {}
++
++    bool empty() const { return m_RawList.IsEmpty(); }
++    size_t size() const { return m_RawList.GetCount(); }
++
++    iterator begin() { return iterator(&m_RawList, m_RawList.Front()); }
++    iterator end() { return iterator(&m_RawList, VMA_NULL); }
++
++    const_iterator cbegin() const { return const_iterator(&m_RawList, m_RawList.Front()); }
++    const_iterator cend() const { return const_iterator(&m_RawList, VMA_NULL); }
++
++    const_iterator begin() const { return cbegin(); }
++    const_iterator end() const { return cend(); }
++
++    reverse_iterator rbegin() { return reverse_iterator(&m_RawList, m_RawList.Back()); }
++    reverse_iterator rend() { return reverse_iterator(&m_RawList, VMA_NULL); }
++
++    const_reverse_iterator crbegin() const { return const_reverse_iterator(&m_RawList, m_RawList.Back()); }
++    const_reverse_iterator crend() const { return const_reverse_iterator(&m_RawList, VMA_NULL); }
++
++    const_reverse_iterator rbegin() const { return crbegin(); }
++    const_reverse_iterator rend() const { return crend(); }
++
++    void push_back(const T& value) { m_RawList.PushBack(value); }
++    iterator insert(iterator it, const T& value) { return iterator(&m_RawList, m_RawList.InsertBefore(it.m_pItem, value)); }
++
++    void clear() { m_RawList.Clear(); }
++    void erase(iterator it) { m_RawList.Remove(it.m_pItem); }
++
++private:
++    VmaRawList<T> m_RawList;
++};
++
++#ifndef _VMA_LIST_FUNCTIONS
++template<typename T, typename AllocatorT>
++typename VmaList<T, AllocatorT>::iterator& VmaList<T, AllocatorT>::iterator::operator--()
++{
++    if (m_pItem != VMA_NULL)
++    {
++        m_pItem = m_pItem->pPrev;
++    }
++    else
++    {
++        VMA_HEAVY_ASSERT(!m_pList->IsEmpty());
++        m_pItem = m_pList->Back();
++    }
++    return *this;
++}
++
++template<typename T, typename AllocatorT>
++typename VmaList<T, AllocatorT>::reverse_iterator& VmaList<T, AllocatorT>::reverse_iterator::operator--()
++{
++    if (m_pItem != VMA_NULL)
++    {
++        m_pItem = m_pItem->pNext;
++    }
++    else
++    {
++        VMA_HEAVY_ASSERT(!m_pList->IsEmpty());
++        m_pItem = m_pList->Front();
++    }
++    return *this;
++}
++
++template<typename T, typename AllocatorT>
++typename VmaList<T, AllocatorT>::const_iterator& VmaList<T, AllocatorT>::const_iterator::operator--()
++{
++    if (m_pItem != VMA_NULL)
++    {
++        m_pItem = m_pItem->pPrev;
++    }
++    else
++    {
++        VMA_HEAVY_ASSERT(!m_pList->IsEmpty());
++        m_pItem = m_pList->Back();
++    }
++    return *this;
++}
++
++template<typename T, typename AllocatorT>
++typename VmaList<T, AllocatorT>::const_reverse_iterator& VmaList<T, AllocatorT>::const_reverse_iterator::operator--()
++{
++    if (m_pItem != VMA_NULL)
++    {
++        m_pItem = m_pItem->pNext;
++    }
++    else
++    {
++        VMA_HEAVY_ASSERT(!m_pList->IsEmpty());
++        m_pItem = m_pList->Back();
++    }
++    return *this;
++}
++#endif // _VMA_LIST_FUNCTIONS
++#endif // _VMA_LIST
++
++#ifndef _VMA_INTRUSIVE_LINKED_LIST
++/*
++Expected interface of ItemTypeTraits:
++struct MyItemTypeTraits
++{
++    typedef MyItem ItemType;
++    static ItemType* GetPrev(const ItemType* item) { return item->myPrevPtr; }
++    static ItemType* GetNext(const ItemType* item) { return item->myNextPtr; }
++    static ItemType*& AccessPrev(ItemType* item) { return item->myPrevPtr; }
++    static ItemType*& AccessNext(ItemType* item) { return item->myNextPtr; }
++};
++*/
++template<typename ItemTypeTraits>
++class VmaIntrusiveLinkedList
++{
++public:
++    typedef typename ItemTypeTraits::ItemType ItemType;
++    static ItemType* GetPrev(const ItemType* item) { return ItemTypeTraits::GetPrev(item); }
++    static ItemType* GetNext(const ItemType* item) { return ItemTypeTraits::GetNext(item); }
++
++    // Movable, not copyable.
++    VmaIntrusiveLinkedList() = default;
++    VmaIntrusiveLinkedList(VmaIntrusiveLinkedList && src);
++    VmaIntrusiveLinkedList(const VmaIntrusiveLinkedList&) = delete;
++    VmaIntrusiveLinkedList& operator=(VmaIntrusiveLinkedList&& src);
++    VmaIntrusiveLinkedList& operator=(const VmaIntrusiveLinkedList&) = delete;
++    ~VmaIntrusiveLinkedList() { VMA_HEAVY_ASSERT(IsEmpty()); }
++    
++    size_t GetCount() const { return m_Count; }
++    bool IsEmpty() const { return m_Count == 0; }
++    ItemType* Front() { return m_Front; }
++    ItemType* Back() { return m_Back; }
++    const ItemType* Front() const { return m_Front; }
++    const ItemType* Back() const { return m_Back; }
++
++    void PushBack(ItemType* item);
++    void PushFront(ItemType* item);
++    ItemType* PopBack();
++    ItemType* PopFront();
++
++    // MyItem can be null - it means PushBack.
++    void InsertBefore(ItemType* existingItem, ItemType* newItem);
++    // MyItem can be null - it means PushFront.
++    void InsertAfter(ItemType* existingItem, ItemType* newItem);
++    void Remove(ItemType* item);
++    void RemoveAll();
++
++private:
++    ItemType* m_Front = VMA_NULL;
++    ItemType* m_Back = VMA_NULL;
++    size_t m_Count = 0;
++};
++
++#ifndef _VMA_INTRUSIVE_LINKED_LIST_FUNCTIONS
++template<typename ItemTypeTraits>
++VmaIntrusiveLinkedList<ItemTypeTraits>::VmaIntrusiveLinkedList(VmaIntrusiveLinkedList&& src)
++    : m_Front(src.m_Front), m_Back(src.m_Back), m_Count(src.m_Count)
++{
++    src.m_Front = src.m_Back = VMA_NULL;
++    src.m_Count = 0;
++}
++
++template<typename ItemTypeTraits>
++VmaIntrusiveLinkedList<ItemTypeTraits>& VmaIntrusiveLinkedList<ItemTypeTraits>::operator=(VmaIntrusiveLinkedList&& src)
++{
++    if (&src != this)
++    {
++        VMA_HEAVY_ASSERT(IsEmpty());
++        m_Front = src.m_Front;
++        m_Back = src.m_Back;
++        m_Count = src.m_Count;
++        src.m_Front = src.m_Back = VMA_NULL;
++        src.m_Count = 0;
++    }
++    return *this;
++}
++
++template<typename ItemTypeTraits>
++void VmaIntrusiveLinkedList<ItemTypeTraits>::PushBack(ItemType* item)
++{
++    VMA_HEAVY_ASSERT(ItemTypeTraits::GetPrev(item) == VMA_NULL && ItemTypeTraits::GetNext(item) == VMA_NULL);
++    if (IsEmpty())
++    {
++        m_Front = item;
++        m_Back = item;
++        m_Count = 1;
++    }
++    else
++    {
++        ItemTypeTraits::AccessPrev(item) = m_Back;
++        ItemTypeTraits::AccessNext(m_Back) = item;
++        m_Back = item;
++        ++m_Count;
++    }
++}
++
++template<typename ItemTypeTraits>
++void VmaIntrusiveLinkedList<ItemTypeTraits>::PushFront(ItemType* item)
++{
++    VMA_HEAVY_ASSERT(ItemTypeTraits::GetPrev(item) == VMA_NULL && ItemTypeTraits::GetNext(item) == VMA_NULL);
++    if (IsEmpty())
++    {
++        m_Front = item;
++        m_Back = item;
++        m_Count = 1;
++    }
++    else
++    {
++        ItemTypeTraits::AccessNext(item) = m_Front;
++        ItemTypeTraits::AccessPrev(m_Front) = item;
++        m_Front = item;
++        ++m_Count;
++    }
++}
++
++template<typename ItemTypeTraits>
++typename VmaIntrusiveLinkedList<ItemTypeTraits>::ItemType* VmaIntrusiveLinkedList<ItemTypeTraits>::PopBack()
++{
++    VMA_HEAVY_ASSERT(m_Count > 0);
++    ItemType* const backItem = m_Back;
++    ItemType* const prevItem = ItemTypeTraits::GetPrev(backItem);
++    if (prevItem != VMA_NULL)
++    {
++        ItemTypeTraits::AccessNext(prevItem) = VMA_NULL;
++    }
++    m_Back = prevItem;
++    --m_Count;
++    ItemTypeTraits::AccessPrev(backItem) = VMA_NULL;
++    ItemTypeTraits::AccessNext(backItem) = VMA_NULL;
++    return backItem;
++}
++
++template<typename ItemTypeTraits>
++typename VmaIntrusiveLinkedList<ItemTypeTraits>::ItemType* VmaIntrusiveLinkedList<ItemTypeTraits>::PopFront()
++{
++    VMA_HEAVY_ASSERT(m_Count > 0);
++    ItemType* const frontItem = m_Front;
++    ItemType* const nextItem = ItemTypeTraits::GetNext(frontItem);
++    if (nextItem != VMA_NULL)
++    {
++        ItemTypeTraits::AccessPrev(nextItem) = VMA_NULL;
++    }
++    m_Front = nextItem;
++    --m_Count;
++    ItemTypeTraits::AccessPrev(frontItem) = VMA_NULL;
++    ItemTypeTraits::AccessNext(frontItem) = VMA_NULL;
++    return frontItem;
++}
++
++template<typename ItemTypeTraits>
++void VmaIntrusiveLinkedList<ItemTypeTraits>::InsertBefore(ItemType* existingItem, ItemType* newItem)
++{
++    VMA_HEAVY_ASSERT(newItem != VMA_NULL && ItemTypeTraits::GetPrev(newItem) == VMA_NULL && ItemTypeTraits::GetNext(newItem) == VMA_NULL);
++    if (existingItem != VMA_NULL)
++    {
++        ItemType* const prevItem = ItemTypeTraits::GetPrev(existingItem);
++        ItemTypeTraits::AccessPrev(newItem) = prevItem;
++        ItemTypeTraits::AccessNext(newItem) = existingItem;
++        ItemTypeTraits::AccessPrev(existingItem) = newItem;
++        if (prevItem != VMA_NULL)
++        {
++            ItemTypeTraits::AccessNext(prevItem) = newItem;
++        }
++        else
++        {
++            VMA_HEAVY_ASSERT(m_Front == existingItem);
++            m_Front = newItem;
++        }
++        ++m_Count;
++    }
++    else
++        PushBack(newItem);
++}
++
++template<typename ItemTypeTraits>
++void VmaIntrusiveLinkedList<ItemTypeTraits>::InsertAfter(ItemType* existingItem, ItemType* newItem)
++{
++    VMA_HEAVY_ASSERT(newItem != VMA_NULL && ItemTypeTraits::GetPrev(newItem) == VMA_NULL && ItemTypeTraits::GetNext(newItem) == VMA_NULL);
++    if (existingItem != VMA_NULL)
++    {
++        ItemType* const nextItem = ItemTypeTraits::GetNext(existingItem);
++        ItemTypeTraits::AccessNext(newItem) = nextItem;
++        ItemTypeTraits::AccessPrev(newItem) = existingItem;
++        ItemTypeTraits::AccessNext(existingItem) = newItem;
++        if (nextItem != VMA_NULL)
++        {
++            ItemTypeTraits::AccessPrev(nextItem) = newItem;
++        }
++        else
++        {
++            VMA_HEAVY_ASSERT(m_Back == existingItem);
++            m_Back = newItem;
++        }
++        ++m_Count;
++    }
++    else
++        return PushFront(newItem);
++}
++
++template<typename ItemTypeTraits>
++void VmaIntrusiveLinkedList<ItemTypeTraits>::Remove(ItemType* item)
++{
++    VMA_HEAVY_ASSERT(item != VMA_NULL && m_Count > 0);
++    if (ItemTypeTraits::GetPrev(item) != VMA_NULL)
++    {
++        ItemTypeTraits::AccessNext(ItemTypeTraits::AccessPrev(item)) = ItemTypeTraits::GetNext(item);
++    }
++    else
++    {
++        VMA_HEAVY_ASSERT(m_Front == item);
++        m_Front = ItemTypeTraits::GetNext(item);
++    }
++
++    if (ItemTypeTraits::GetNext(item) != VMA_NULL)
++    {
++        ItemTypeTraits::AccessPrev(ItemTypeTraits::AccessNext(item)) = ItemTypeTraits::GetPrev(item);
++    }
++    else
++    {
++        VMA_HEAVY_ASSERT(m_Back == item);
++        m_Back = ItemTypeTraits::GetPrev(item);
++    }
++    ItemTypeTraits::AccessPrev(item) = VMA_NULL;
++    ItemTypeTraits::AccessNext(item) = VMA_NULL;
++    --m_Count;
++}
++
++template<typename ItemTypeTraits>
++void VmaIntrusiveLinkedList<ItemTypeTraits>::RemoveAll()
++{
++    if (!IsEmpty())
++    {
++        ItemType* item = m_Back;
++        while (item != VMA_NULL)
++        {
++            ItemType* const prevItem = ItemTypeTraits::AccessPrev(item);
++            ItemTypeTraits::AccessPrev(item) = VMA_NULL;
++            ItemTypeTraits::AccessNext(item) = VMA_NULL;
++            item = prevItem;
++        }
++        m_Front = VMA_NULL;
++        m_Back = VMA_NULL;
++        m_Count = 0;
++    }
++}
++#endif // _VMA_INTRUSIVE_LINKED_LIST_FUNCTIONS
++#endif // _VMA_INTRUSIVE_LINKED_LIST
++
++// Unused in this version.
++#if 0
++
++#ifndef _VMA_PAIR
++template<typename T1, typename T2>
++struct VmaPair
++{
++    T1 first;
++    T2 second;
++
++    VmaPair() : first(), second() {}
++    VmaPair(const T1& firstSrc, const T2& secondSrc) : first(firstSrc), second(secondSrc) {}
++};
++
++template<typename FirstT, typename SecondT>
++struct VmaPairFirstLess
++{
++    bool operator()(const VmaPair<FirstT, SecondT>& lhs, const VmaPair<FirstT, SecondT>& rhs) const
++    {
++        return lhs.first < rhs.first;
++    }
++    bool operator()(const VmaPair<FirstT, SecondT>& lhs, const FirstT& rhsFirst) const
++    {
++        return lhs.first < rhsFirst;
++    }
++};
++#endif // _VMA_PAIR
++
++#ifndef _VMA_MAP
++/* Class compatible with subset of interface of std::unordered_map.
++KeyT, ValueT must be POD because they will be stored in VmaVector.
++*/
++template<typename KeyT, typename ValueT>
++class VmaMap
++{
++public:
++    typedef VmaPair<KeyT, ValueT> PairType;
++    typedef PairType* iterator;
++
++    VmaMap(const VmaStlAllocator<PairType>& allocator) : m_Vector(allocator) {}
++
++    iterator begin() { return m_Vector.begin(); }
++    iterator end() { return m_Vector.end(); }
++    size_t size() { return m_Vector.size(); }
++
++    void insert(const PairType& pair);
++    iterator find(const KeyT& key);
++    void erase(iterator it);
++
++private:
++    VmaVector< PairType, VmaStlAllocator<PairType>> m_Vector;
++};
++
++#ifndef _VMA_MAP_FUNCTIONS
++template<typename KeyT, typename ValueT>
++void VmaMap<KeyT, ValueT>::insert(const PairType& pair)
++{
++    const size_t indexToInsert = VmaBinaryFindFirstNotLess(
++        m_Vector.data(),
++        m_Vector.data() + m_Vector.size(),
++        pair,
++        VmaPairFirstLess<KeyT, ValueT>()) - m_Vector.data();
++    VmaVectorInsert(m_Vector, indexToInsert, pair);
++}
++
++template<typename KeyT, typename ValueT>
++VmaPair<KeyT, ValueT>* VmaMap<KeyT, ValueT>::find(const KeyT& key)
++{
++    PairType* it = VmaBinaryFindFirstNotLess(
++        m_Vector.data(),
++        m_Vector.data() + m_Vector.size(),
++        key,
++        VmaPairFirstLess<KeyT, ValueT>());
++    if ((it != m_Vector.end()) && (it->first == key))
++    {
++        return it;
++    }
++    else
++    {
++        return m_Vector.end();
++    }
++}
++
++template<typename KeyT, typename ValueT>
++void VmaMap<KeyT, ValueT>::erase(iterator it)
++{
++    VmaVectorRemove(m_Vector, it - m_Vector.begin());
++}
++#endif // _VMA_MAP_FUNCTIONS
++#endif // _VMA_MAP
++
++#endif // #if 0
++
++#if !defined(_VMA_STRING_BUILDER) && VMA_STATS_STRING_ENABLED
++class VmaStringBuilder
++{
++public:
++    VmaStringBuilder(const VkAllocationCallbacks* allocationCallbacks) : m_Data(VmaStlAllocator<char>(allocationCallbacks)) {}
++    ~VmaStringBuilder() = default;
++
++    size_t GetLength() const { return m_Data.size(); }
++    const char* GetData() const { return m_Data.data(); }
++    void AddNewLine() { Add('\n'); }
++    void Add(char ch) { m_Data.push_back(ch); }
++
++    void Add(const char* pStr);
++    void AddNumber(uint32_t num);
++    void AddNumber(uint64_t num);
++    void AddPointer(const void* ptr);
++
++private:
++    VmaVector<char, VmaStlAllocator<char>> m_Data;
++};
++
++#ifndef _VMA_STRING_BUILDER_FUNCTIONS
++void VmaStringBuilder::Add(const char* pStr)
++{
++    const size_t strLen = strlen(pStr);
++    if (strLen > 0)
++    {
++        const size_t oldCount = m_Data.size();
++        m_Data.resize(oldCount + strLen);
++        memcpy(m_Data.data() + oldCount, pStr, strLen);
++    }
++}
++
++void VmaStringBuilder::AddNumber(uint32_t num)
++{
++    char buf[11];
++    buf[10] = '\0';
++    char* p = &buf[10];
++    do
++    {
++        *--p = '0' + (num % 10);
++        num /= 10;
++    } while (num);
++    Add(p);
++}
++
++void VmaStringBuilder::AddNumber(uint64_t num)
++{
++    char buf[21];
++    buf[20] = '\0';
++    char* p = &buf[20];
++    do
++    {
++        *--p = '0' + (num % 10);
++        num /= 10;
++    } while (num);
++    Add(p);
++}
++
++void VmaStringBuilder::AddPointer(const void* ptr)
++{
++    char buf[21];
++    VmaPtrToStr(buf, sizeof(buf), ptr);
++    Add(buf);
++}
++#endif //_VMA_STRING_BUILDER_FUNCTIONS
++#endif // _VMA_STRING_BUILDER
++
++#if !defined(_VMA_JSON_WRITER) && VMA_STATS_STRING_ENABLED
++/*
++Allows to conveniently build a correct JSON document to be written to the
++VmaStringBuilder passed to the constructor.
++*/
++class VmaJsonWriter
++{
++    VMA_CLASS_NO_COPY(VmaJsonWriter)
++public:
++    // sb - string builder to write the document to. Must remain alive for the whole lifetime of this object.
++    VmaJsonWriter(const VkAllocationCallbacks* pAllocationCallbacks, VmaStringBuilder& sb);
++    ~VmaJsonWriter();
++
++    // Begins object by writing "{".
++    // Inside an object, you must call pairs of WriteString and a value, e.g.:
++    // j.BeginObject(true); j.WriteString("A"); j.WriteNumber(1); j.WriteString("B"); j.WriteNumber(2); j.EndObject();
++    // Will write: { "A": 1, "B": 2 }
++    void BeginObject(bool singleLine = false);
++    // Ends object by writing "}".
++    void EndObject();
++
++    // Begins array by writing "[".
++    // Inside an array, you can write a sequence of any values.
++    void BeginArray(bool singleLine = false);
++    // Ends array by writing "[".
++    void EndArray();
++
++    // Writes a string value inside "".
++    // pStr can contain any ANSI characters, including '"', new line etc. - they will be properly escaped.
++    void WriteString(const char* pStr);
++    
++    // Begins writing a string value.
++    // Call BeginString, ContinueString, ContinueString, ..., EndString instead of
++    // WriteString to conveniently build the string content incrementally, made of
++    // parts including numbers.
++    void BeginString(const char* pStr = VMA_NULL);
++    // Posts next part of an open string.
++    void ContinueString(const char* pStr);
++    // Posts next part of an open string. The number is converted to decimal characters.
++    void ContinueString(uint32_t n);
++    void ContinueString(uint64_t n);
++    void ContinueString_Size(size_t n);
++    // Posts next part of an open string. Pointer value is converted to characters
++    // using "%p" formatting - shown as hexadecimal number, e.g.: 000000081276Ad00
++    void ContinueString_Pointer(const void* ptr);
++    // Ends writing a string value by writing '"'.
++    void EndString(const char* pStr = VMA_NULL);
++
++    // Writes a number value.
++    void WriteNumber(uint32_t n);
++    void WriteNumber(uint64_t n);
++    void WriteSize(size_t n);
++    // Writes a boolean value - false or true.
++    void WriteBool(bool b);
++    // Writes a null value.
++    void WriteNull();
++
++private:
++    enum COLLECTION_TYPE
++    {
++        COLLECTION_TYPE_OBJECT,
++        COLLECTION_TYPE_ARRAY,
++    };
++    struct StackItem
++    {
++        COLLECTION_TYPE type;
++        uint32_t valueCount;
++        bool singleLineMode;
++    };
++
++    static const char* const INDENT;
++
++    VmaStringBuilder& m_SB;
++    VmaVector< StackItem, VmaStlAllocator<StackItem> > m_Stack;
++    bool m_InsideString;
++
++    // Write size_t for less than 64bits
++    void WriteSize(size_t n, std::integral_constant<bool, false>) { m_SB.AddNumber(static_cast<uint32_t>(n)); }
++    // Write size_t for 64bits
++    void WriteSize(size_t n, std::integral_constant<bool, true>) { m_SB.AddNumber(static_cast<uint64_t>(n)); }
++
++    void BeginValue(bool isString);
++    void WriteIndent(bool oneLess = false);
++};
++const char* const VmaJsonWriter::INDENT = "  ";
++
++#ifndef _VMA_JSON_WRITER_FUNCTIONS
++VmaJsonWriter::VmaJsonWriter(const VkAllocationCallbacks* pAllocationCallbacks, VmaStringBuilder& sb)
++    : m_SB(sb),
++    m_Stack(VmaStlAllocator<StackItem>(pAllocationCallbacks)),
++    m_InsideString(false) {}
++
++VmaJsonWriter::~VmaJsonWriter()
++{
++    VMA_ASSERT(!m_InsideString);
++    VMA_ASSERT(m_Stack.empty());
++}
++
++void VmaJsonWriter::BeginObject(bool singleLine)
++{
++    VMA_ASSERT(!m_InsideString);
++
++    BeginValue(false);
++    m_SB.Add('{');
++
++    StackItem item;
++    item.type = COLLECTION_TYPE_OBJECT;
++    item.valueCount = 0;
++    item.singleLineMode = singleLine;
++    m_Stack.push_back(item);
++}
++
++void VmaJsonWriter::EndObject()
++{
++    VMA_ASSERT(!m_InsideString);
++
++    WriteIndent(true);
++    m_SB.Add('}');
++
++    VMA_ASSERT(!m_Stack.empty() && m_Stack.back().type == COLLECTION_TYPE_OBJECT);
++    m_Stack.pop_back();
++}
++
++void VmaJsonWriter::BeginArray(bool singleLine)
++{
++    VMA_ASSERT(!m_InsideString);
++
++    BeginValue(false);
++    m_SB.Add('[');
++
++    StackItem item;
++    item.type = COLLECTION_TYPE_ARRAY;
++    item.valueCount = 0;
++    item.singleLineMode = singleLine;
++    m_Stack.push_back(item);
++}
++
++void VmaJsonWriter::EndArray()
++{
++    VMA_ASSERT(!m_InsideString);
++
++    WriteIndent(true);
++    m_SB.Add(']');
++
++    VMA_ASSERT(!m_Stack.empty() && m_Stack.back().type == COLLECTION_TYPE_ARRAY);
++    m_Stack.pop_back();
++}
++
++void VmaJsonWriter::WriteString(const char* pStr)
++{
++    BeginString(pStr);
++    EndString();
++}
++
++void VmaJsonWriter::BeginString(const char* pStr)
++{
++    VMA_ASSERT(!m_InsideString);
++
++    BeginValue(true);
++    m_SB.Add('"');
++    m_InsideString = true;
++    if (pStr != VMA_NULL && pStr[0] != '\0')
++    {
++        ContinueString(pStr);
++    }
++}
++
++void VmaJsonWriter::ContinueString(const char* pStr)
++{
++    VMA_ASSERT(m_InsideString);
++
++    const size_t strLen = strlen(pStr);
++    for (size_t i = 0; i < strLen; ++i)
++    {
++        char ch = pStr[i];
++        if (ch == '\\')
++        {
++            m_SB.Add("\\\\");
++        }
++        else if (ch == '"')
++        {
++            m_SB.Add("\\\"");
++        }
++        else if (ch >= 32)
++        {
++            m_SB.Add(ch);
++        }
++        else switch (ch)
++        {
++        case '\b':
++            m_SB.Add("\\b");
++            break;
++        case '\f':
++            m_SB.Add("\\f");
++            break;
++        case '\n':
++            m_SB.Add("\\n");
++            break;
++        case '\r':
++            m_SB.Add("\\r");
++            break;
++        case '\t':
++            m_SB.Add("\\t");
++            break;
++        default:
++            VMA_ASSERT(0 && "Character not currently supported.");
++            break;
++        }
++    }
++}
++
++void VmaJsonWriter::ContinueString(uint32_t n)
++{
++    VMA_ASSERT(m_InsideString);
++    m_SB.AddNumber(n);
++}
++
++void VmaJsonWriter::ContinueString(uint64_t n)
++{
++    VMA_ASSERT(m_InsideString);
++    m_SB.AddNumber(n);
++}
++
++void VmaJsonWriter::ContinueString_Size(size_t n)
++{
++    VMA_ASSERT(m_InsideString);
++    // Fix for AppleClang incorrect type casting
++    // TODO: Change to if constexpr when C++17 used as minimal standard
++    WriteSize(n, std::is_same<size_t, uint64_t>{});
++}
++
++void VmaJsonWriter::ContinueString_Pointer(const void* ptr)
++{
++    VMA_ASSERT(m_InsideString);
++    m_SB.AddPointer(ptr);
++}
++
++void VmaJsonWriter::EndString(const char* pStr)
++{
++    VMA_ASSERT(m_InsideString);
++    if (pStr != VMA_NULL && pStr[0] != '\0')
++    {
++        ContinueString(pStr);
++    }
++    m_SB.Add('"');
++    m_InsideString = false;
++}
++
++void VmaJsonWriter::WriteNumber(uint32_t n)
++{
++    VMA_ASSERT(!m_InsideString);
++    BeginValue(false);
++    m_SB.AddNumber(n);
++}
++
++void VmaJsonWriter::WriteNumber(uint64_t n)
++{
++    VMA_ASSERT(!m_InsideString);
++    BeginValue(false);
++    m_SB.AddNumber(n);
++}
++
++void VmaJsonWriter::WriteSize(size_t n)
++{
++    VMA_ASSERT(!m_InsideString);
++    BeginValue(false);
++    // Fix for AppleClang incorrect type casting
++    // TODO: Change to if constexpr when C++17 used as minimal standard
++    WriteSize(n, std::is_same<size_t, uint64_t>{});
++}
++
++void VmaJsonWriter::WriteBool(bool b)
++{
++    VMA_ASSERT(!m_InsideString);
++    BeginValue(false);
++    m_SB.Add(b ? "true" : "false");
++}
++
++void VmaJsonWriter::WriteNull()
++{
++    VMA_ASSERT(!m_InsideString);
++    BeginValue(false);
++    m_SB.Add("null");
++}
++
++void VmaJsonWriter::BeginValue(bool isString)
++{
++    if (!m_Stack.empty())
++    {
++        StackItem& currItem = m_Stack.back();
++        if (currItem.type == COLLECTION_TYPE_OBJECT &&
++            currItem.valueCount % 2 == 0)
++        {
++            VMA_ASSERT(isString);
++        }
++
++        if (currItem.type == COLLECTION_TYPE_OBJECT &&
++            currItem.valueCount % 2 != 0)
++        {
++            m_SB.Add(": ");
++        }
++        else if (currItem.valueCount > 0)
++        {
++            m_SB.Add(", ");
++            WriteIndent();
++        }
++        else
++        {
++            WriteIndent();
++        }
++        ++currItem.valueCount;
++    }
++}
++
++void VmaJsonWriter::WriteIndent(bool oneLess)
++{
++    if (!m_Stack.empty() && !m_Stack.back().singleLineMode)
++    {
++        m_SB.AddNewLine();
++
++        size_t count = m_Stack.size();
++        if (count > 0 && oneLess)
++        {
++            --count;
++        }
++        for (size_t i = 0; i < count; ++i)
++        {
++            m_SB.Add(INDENT);
++        }
++    }
++}
++#endif // _VMA_JSON_WRITER_FUNCTIONS
++
++static void VmaPrintDetailedStatistics(VmaJsonWriter& json, const VmaDetailedStatistics& stat)
++{
++    json.BeginObject();
++
++    json.WriteString("BlockCount");
++    json.WriteNumber(stat.statistics.blockCount);
++    json.WriteString("BlockBytes");
++    json.WriteNumber(stat.statistics.blockBytes);
++    json.WriteString("AllocationCount");
++    json.WriteNumber(stat.statistics.allocationCount);
++    json.WriteString("AllocationBytes");
++    json.WriteNumber(stat.statistics.allocationBytes);
++    json.WriteString("UnusedRangeCount");
++    json.WriteNumber(stat.unusedRangeCount);
++
++    if (stat.statistics.allocationCount > 1)
++    {
++        json.WriteString("AllocationSizeMin");
++        json.WriteNumber(stat.allocationSizeMin);
++        json.WriteString("AllocationSizeMax");
++        json.WriteNumber(stat.allocationSizeMax);
++    }
++    if (stat.unusedRangeCount > 1)
++    {
++        json.WriteString("UnusedRangeSizeMin");
++        json.WriteNumber(stat.unusedRangeSizeMin);
++        json.WriteString("UnusedRangeSizeMax");
++        json.WriteNumber(stat.unusedRangeSizeMax);
++    }
++    json.EndObject();
++}
++#endif // _VMA_JSON_WRITER
++
++#ifndef _VMA_MAPPING_HYSTERESIS
++
++class VmaMappingHysteresis
++{
++    VMA_CLASS_NO_COPY(VmaMappingHysteresis)
++public:
++    VmaMappingHysteresis() = default;
++
++    uint32_t GetExtraMapping() const { return m_ExtraMapping; }
++
++    // Call when Map was called.
++    // Returns true if switched to extra +1 mapping reference count.
++    bool PostMap()
++    {
++#if VMA_MAPPING_HYSTERESIS_ENABLED
++        if(m_ExtraMapping == 0)
++        {
++            ++m_MajorCounter;
++            if(m_MajorCounter >= COUNTER_MIN_EXTRA_MAPPING)
++            {
++                m_ExtraMapping = 1;
++                m_MajorCounter = 0;
++                m_MinorCounter = 0;
++                return true;
++            }
++        }
++        else // m_ExtraMapping == 1
++            PostMinorCounter();
++#endif // #if VMA_MAPPING_HYSTERESIS_ENABLED
++        return false;
++    }
++
++    // Call when Unmap was called.
++    void PostUnmap()
++    {
++#if VMA_MAPPING_HYSTERESIS_ENABLED
++        if(m_ExtraMapping == 0)
++            ++m_MajorCounter;
++        else // m_ExtraMapping == 1
++            PostMinorCounter();
++#endif // #if VMA_MAPPING_HYSTERESIS_ENABLED
++    }
++
++    // Call when allocation was made from the memory block.
++    void PostAlloc()
++    {
++#if VMA_MAPPING_HYSTERESIS_ENABLED
++        if(m_ExtraMapping == 1)
++            ++m_MajorCounter;
++        else // m_ExtraMapping == 0
++            PostMinorCounter();
++#endif // #if VMA_MAPPING_HYSTERESIS_ENABLED
++    }
++
++    // Call when allocation was freed from the memory block.
++    // Returns true if switched to extra -1 mapping reference count.
++    bool PostFree()
++    {
++#if VMA_MAPPING_HYSTERESIS_ENABLED
++        if(m_ExtraMapping == 1)
++        {
++            ++m_MajorCounter;
++            if(m_MajorCounter >= COUNTER_MIN_EXTRA_MAPPING &&
++                m_MajorCounter > m_MinorCounter + 1)
++            {
++                m_ExtraMapping = 0;
++                m_MajorCounter = 0;
++                m_MinorCounter = 0;
++                return true;
++            }
++        }
++        else // m_ExtraMapping == 0
++            PostMinorCounter();
++#endif // #if VMA_MAPPING_HYSTERESIS_ENABLED
++        return false;
++    }
++
++private:
++    static const int32_t COUNTER_MIN_EXTRA_MAPPING = 7;
++
++    uint32_t m_MinorCounter = 0;
++    uint32_t m_MajorCounter = 0;
++    uint32_t m_ExtraMapping = 0; // 0 or 1.
++
++    void PostMinorCounter()
++    {
++        if(m_MinorCounter < m_MajorCounter)
++        {
++            ++m_MinorCounter;
++        }
++        else if(m_MajorCounter > 0)
++        {
++            --m_MajorCounter;
++            --m_MinorCounter;
++        }
++    }
++};
++
++#endif // _VMA_MAPPING_HYSTERESIS
++
++#ifndef _VMA_DEVICE_MEMORY_BLOCK
++/*
++Represents a single block of device memory (`VkDeviceMemory`) with all the
++data about its regions (aka suballocations, #VmaAllocation), assigned and free.
++
++Thread-safety:
++- Access to m_pMetadata must be externally synchronized.
++- Map, Unmap, Bind* are synchronized internally.
++*/
++class VmaDeviceMemoryBlock
++{
++    VMA_CLASS_NO_COPY(VmaDeviceMemoryBlock)
++public:
++    VmaBlockMetadata* m_pMetadata;
++
++    VmaDeviceMemoryBlock(VmaAllocator hAllocator);
++    ~VmaDeviceMemoryBlock();
++
++    // Always call after construction.
++    void Init(
++        VmaAllocator hAllocator,
++        VmaPool hParentPool,
++        uint32_t newMemoryTypeIndex,
++        VkDeviceMemory newMemory,
++        VkDeviceSize newSize,
++        uint32_t id,
++        uint32_t algorithm,
++        VkDeviceSize bufferImageGranularity);
++    // Always call before destruction.
++    void Destroy(VmaAllocator allocator);
++
++    VmaPool GetParentPool() const { return m_hParentPool; }
++    VkDeviceMemory GetDeviceMemory() const { return m_hMemory; }
++    uint32_t GetMemoryTypeIndex() const { return m_MemoryTypeIndex; }
++    uint32_t GetId() const { return m_Id; }
++    void* GetMappedData() const { return m_pMappedData; }
++    uint32_t GetMapRefCount() const { return m_MapCount; }
++
++    // Call when allocation/free was made from m_pMetadata.
++    // Used for m_MappingHysteresis.
++    void PostAlloc() { m_MappingHysteresis.PostAlloc(); }
++    void PostFree(VmaAllocator hAllocator);
++
++    // Validates all data structures inside this object. If not valid, returns false.
++    bool Validate() const;
++    VkResult CheckCorruption(VmaAllocator hAllocator);
++
++    // ppData can be null.
++    VkResult Map(VmaAllocator hAllocator, uint32_t count, void** ppData);
++    void Unmap(VmaAllocator hAllocator, uint32_t count);
++
++    VkResult WriteMagicValueAfterAllocation(VmaAllocator hAllocator, VkDeviceSize allocOffset, VkDeviceSize allocSize);
++    VkResult ValidateMagicValueAfterAllocation(VmaAllocator hAllocator, VkDeviceSize allocOffset, VkDeviceSize allocSize);
++
++    VkResult BindBufferMemory(
++        const VmaAllocator hAllocator,
++        const VmaAllocation hAllocation,
++        VkDeviceSize allocationLocalOffset,
++        VkBuffer hBuffer,
++        const void* pNext);
++    VkResult BindImageMemory(
++        const VmaAllocator hAllocator,
++        const VmaAllocation hAllocation,
++        VkDeviceSize allocationLocalOffset,
++        VkImage hImage,
++        const void* pNext);
++
++private:
++    VmaPool m_hParentPool; // VK_NULL_HANDLE if not belongs to custom pool.
++    uint32_t m_MemoryTypeIndex;
++    uint32_t m_Id;
++    VkDeviceMemory m_hMemory;
++
++    /*
++    Protects access to m_hMemory so it is not used by multiple threads simultaneously, e.g. vkMapMemory, vkBindBufferMemory.
++    Also protects m_MapCount, m_pMappedData.
++    Allocations, deallocations, any change in m_pMetadata is protected by parent's VmaBlockVector::m_Mutex.
++    */
++    VMA_MUTEX m_MapAndBindMutex;
++    VmaMappingHysteresis m_MappingHysteresis;
++    uint32_t m_MapCount;
++    void* m_pMappedData;
++};
++#endif // _VMA_DEVICE_MEMORY_BLOCK
++
++#ifndef _VMA_ALLOCATION_T
++struct VmaAllocation_T
++{
++    friend struct VmaDedicatedAllocationListItemTraits;
++
++    enum FLAGS
++    {
++        FLAG_PERSISTENT_MAP   = 0x01,
++        FLAG_MAPPING_ALLOWED  = 0x02,
++    };
++
++public:
++    enum ALLOCATION_TYPE
++    {
++        ALLOCATION_TYPE_NONE,
++        ALLOCATION_TYPE_BLOCK,
++        ALLOCATION_TYPE_DEDICATED,
++    };
++
++    // This struct is allocated using VmaPoolAllocator.
++    VmaAllocation_T(bool mappingAllowed);
++    ~VmaAllocation_T();
++
++    void InitBlockAllocation(
++        VmaDeviceMemoryBlock* block,
++        VmaAllocHandle allocHandle,
++        VkDeviceSize alignment,
++        VkDeviceSize size,
++        uint32_t memoryTypeIndex,
++        VmaSuballocationType suballocationType,
++        bool mapped);
++    // pMappedData not null means allocation is created with MAPPED flag.
++    void InitDedicatedAllocation(
++        VmaPool hParentPool,
++        uint32_t memoryTypeIndex,
++        VkDeviceMemory hMemory,
++        VmaSuballocationType suballocationType,
++        void* pMappedData,
++        VkDeviceSize size);
++
++    ALLOCATION_TYPE GetType() const { return (ALLOCATION_TYPE)m_Type; }
++    VkDeviceSize GetAlignment() const { return m_Alignment; }
++    VkDeviceSize GetSize() const { return m_Size; }
++    void* GetUserData() const { return m_pUserData; }
++    const char* GetName() const { return m_pName; }
++    VmaSuballocationType GetSuballocationType() const { return (VmaSuballocationType)m_SuballocationType; }
++
++    VmaDeviceMemoryBlock* GetBlock() const { VMA_ASSERT(m_Type == ALLOCATION_TYPE_BLOCK); return m_BlockAllocation.m_Block; }
++    uint32_t GetMemoryTypeIndex() const { return m_MemoryTypeIndex; }
++    bool IsPersistentMap() const { return (m_Flags & FLAG_PERSISTENT_MAP) != 0; }
++    bool IsMappingAllowed() const { return (m_Flags & FLAG_MAPPING_ALLOWED) != 0; }
++
++    void SetUserData(VmaAllocator hAllocator, void* pUserData) { m_pUserData = pUserData; }
++    void SetName(VmaAllocator hAllocator, const char* pName);
++    void FreeName(VmaAllocator hAllocator);
++    uint8_t SwapBlockAllocation(VmaAllocator hAllocator, VmaAllocation allocation);
++    VmaAllocHandle GetAllocHandle() const;
++    VkDeviceSize GetOffset() const;
++    VmaPool GetParentPool() const;
++    VkDeviceMemory GetMemory() const;
++    void* GetMappedData() const;
++
++    void BlockAllocMap();
++    void BlockAllocUnmap();
++    VkResult DedicatedAllocMap(VmaAllocator hAllocator, void** ppData);
++    void DedicatedAllocUnmap(VmaAllocator hAllocator);
++
++#if VMA_STATS_STRING_ENABLED
++    uint32_t GetBufferImageUsage() const { return m_BufferImageUsage; }
++
++    void InitBufferImageUsage(uint32_t bufferImageUsage);
++    void PrintParameters(class VmaJsonWriter& json) const;
++#endif
++
++private:
++    // Allocation out of VmaDeviceMemoryBlock.
++    struct BlockAllocation
++    {
++        VmaDeviceMemoryBlock* m_Block;
++        VmaAllocHandle m_AllocHandle;
++    };
++    // Allocation for an object that has its own private VkDeviceMemory.
++    struct DedicatedAllocation
++    {
++        VmaPool m_hParentPool; // VK_NULL_HANDLE if not belongs to custom pool.
++        VkDeviceMemory m_hMemory;
++        void* m_pMappedData; // Not null means memory is mapped.
++        VmaAllocation_T* m_Prev;
++        VmaAllocation_T* m_Next;
++    };
++    union
++    {
++        // Allocation out of VmaDeviceMemoryBlock.
++        BlockAllocation m_BlockAllocation;
++        // Allocation for an object that has its own private VkDeviceMemory.
++        DedicatedAllocation m_DedicatedAllocation;
++    };
++
++    VkDeviceSize m_Alignment;
++    VkDeviceSize m_Size;
++    void* m_pUserData;
++    char* m_pName;
++    uint32_t m_MemoryTypeIndex;
++    uint8_t m_Type; // ALLOCATION_TYPE
++    uint8_t m_SuballocationType; // VmaSuballocationType
++    // Reference counter for vmaMapMemory()/vmaUnmapMemory().
++    uint8_t m_MapCount;
++    uint8_t m_Flags; // enum FLAGS
++#if VMA_STATS_STRING_ENABLED
++    uint32_t m_BufferImageUsage; // 0 if unknown.
++#endif
++};
++#endif // _VMA_ALLOCATION_T
++
++#ifndef _VMA_DEDICATED_ALLOCATION_LIST_ITEM_TRAITS
++struct VmaDedicatedAllocationListItemTraits
++{
++    typedef VmaAllocation_T ItemType;
++
++    static ItemType* GetPrev(const ItemType* item)
++    {
++        VMA_HEAVY_ASSERT(item->GetType() == VmaAllocation_T::ALLOCATION_TYPE_DEDICATED);
++        return item->m_DedicatedAllocation.m_Prev;
++    }
++    static ItemType* GetNext(const ItemType* item)
++    {
++        VMA_HEAVY_ASSERT(item->GetType() == VmaAllocation_T::ALLOCATION_TYPE_DEDICATED);
++        return item->m_DedicatedAllocation.m_Next;
++    }
++    static ItemType*& AccessPrev(ItemType* item)
++    {
++        VMA_HEAVY_ASSERT(item->GetType() == VmaAllocation_T::ALLOCATION_TYPE_DEDICATED);
++        return item->m_DedicatedAllocation.m_Prev;
++    }
++    static ItemType*& AccessNext(ItemType* item)
++    {
++        VMA_HEAVY_ASSERT(item->GetType() == VmaAllocation_T::ALLOCATION_TYPE_DEDICATED);
++        return item->m_DedicatedAllocation.m_Next;
++    }
++};
++#endif // _VMA_DEDICATED_ALLOCATION_LIST_ITEM_TRAITS
++
++#ifndef _VMA_DEDICATED_ALLOCATION_LIST
++/*
++Stores linked list of VmaAllocation_T objects.
++Thread-safe, synchronized internally.
++*/
++class VmaDedicatedAllocationList
++{
++public:
++    VmaDedicatedAllocationList() {}
++    ~VmaDedicatedAllocationList();
++
++    void Init(bool useMutex) { m_UseMutex = useMutex; }
++    bool Validate();
++
++    void AddDetailedStatistics(VmaDetailedStatistics& inoutStats);
++    void AddStatistics(VmaStatistics& inoutStats);
++#if VMA_STATS_STRING_ENABLED
++    // Writes JSON array with the list of allocations.
++    void BuildStatsString(VmaJsonWriter& json);
++#endif
++
++    bool IsEmpty();
++    void Register(VmaAllocation alloc);
++    void Unregister(VmaAllocation alloc);
++
++private:
++    typedef VmaIntrusiveLinkedList<VmaDedicatedAllocationListItemTraits> DedicatedAllocationLinkedList;
++
++    bool m_UseMutex = true;
++    VMA_RW_MUTEX m_Mutex;
++    DedicatedAllocationLinkedList m_AllocationList;
++};
++
++#ifndef _VMA_DEDICATED_ALLOCATION_LIST_FUNCTIONS
++
++VmaDedicatedAllocationList::~VmaDedicatedAllocationList()
++{
++    VMA_HEAVY_ASSERT(Validate());
++
++    if (!m_AllocationList.IsEmpty())
++    {
++        VMA_ASSERT(false && "Unfreed dedicated allocations found!");
++    }
++}
++
++bool VmaDedicatedAllocationList::Validate()
++{
++    const size_t declaredCount = m_AllocationList.GetCount();
++    size_t actualCount = 0;
++    VmaMutexLockRead lock(m_Mutex, m_UseMutex);
++    for (VmaAllocation alloc = m_AllocationList.Front();
++        alloc != VMA_NULL; alloc = m_AllocationList.GetNext(alloc))
++    {
++        ++actualCount;
++    }
++    VMA_VALIDATE(actualCount == declaredCount);
++
++    return true;
++}
++
++void VmaDedicatedAllocationList::AddDetailedStatistics(VmaDetailedStatistics& inoutStats)
++{
++    for(auto* item = m_AllocationList.Front(); item != nullptr; item = DedicatedAllocationLinkedList::GetNext(item))
++    {
++        const VkDeviceSize size = item->GetSize();
++        inoutStats.statistics.blockCount++;
++        inoutStats.statistics.blockBytes += size;
++        VmaAddDetailedStatisticsAllocation(inoutStats, item->GetSize());
++    }
++}
++
++void VmaDedicatedAllocationList::AddStatistics(VmaStatistics& inoutStats)
++{
++    VmaMutexLockRead lock(m_Mutex, m_UseMutex);
++
++    const uint32_t allocCount = (uint32_t)m_AllocationList.GetCount();
++    inoutStats.blockCount += allocCount;
++    inoutStats.allocationCount += allocCount;
++
++    for(auto* item = m_AllocationList.Front(); item != nullptr; item = DedicatedAllocationLinkedList::GetNext(item))
++    {
++        const VkDeviceSize size = item->GetSize();
++        inoutStats.blockBytes += size;
++        inoutStats.allocationBytes += size;
++    }
++}
++
++#if VMA_STATS_STRING_ENABLED
++void VmaDedicatedAllocationList::BuildStatsString(VmaJsonWriter& json)
++{
++    VmaMutexLockRead lock(m_Mutex, m_UseMutex);
++    json.BeginArray();
++    for (VmaAllocation alloc = m_AllocationList.Front();
++        alloc != VMA_NULL; alloc = m_AllocationList.GetNext(alloc))
++    {
++        json.BeginObject(true);
++        alloc->PrintParameters(json);
++        json.EndObject();
++    }
++    json.EndArray();
++}
++#endif // VMA_STATS_STRING_ENABLED
++
++bool VmaDedicatedAllocationList::IsEmpty()
++{
++    VmaMutexLockRead lock(m_Mutex, m_UseMutex);
++    return m_AllocationList.IsEmpty();
++}
++
++void VmaDedicatedAllocationList::Register(VmaAllocation alloc)
++{
++    VmaMutexLockWrite lock(m_Mutex, m_UseMutex);
++    m_AllocationList.PushBack(alloc);
++}
++
++void VmaDedicatedAllocationList::Unregister(VmaAllocation alloc)
++{
++    VmaMutexLockWrite lock(m_Mutex, m_UseMutex);
++    m_AllocationList.Remove(alloc);
++}
++#endif // _VMA_DEDICATED_ALLOCATION_LIST_FUNCTIONS
++#endif // _VMA_DEDICATED_ALLOCATION_LIST
++
++#ifndef _VMA_SUBALLOCATION
++/*
++Represents a region of VmaDeviceMemoryBlock that is either assigned and returned as
++allocated memory block or free.
++*/
++struct VmaSuballocation
++{
++    VkDeviceSize offset;
++    VkDeviceSize size;
++    void* userData;
++    VmaSuballocationType type;
++};
++
++// Comparator for offsets.
++struct VmaSuballocationOffsetLess
++{
++    bool operator()(const VmaSuballocation& lhs, const VmaSuballocation& rhs) const
++    {
++        return lhs.offset < rhs.offset;
++    }
++};
++
++struct VmaSuballocationOffsetGreater
++{
++    bool operator()(const VmaSuballocation& lhs, const VmaSuballocation& rhs) const
++    {
++        return lhs.offset > rhs.offset;
++    }
++};
++
++struct VmaSuballocationItemSizeLess
++{
++    bool operator()(const VmaSuballocationList::iterator lhs,
++        const VmaSuballocationList::iterator rhs) const
++    {
++        return lhs->size < rhs->size;
++    }
++
++    bool operator()(const VmaSuballocationList::iterator lhs,
++        VkDeviceSize rhsSize) const
++    {
++        return lhs->size < rhsSize;
++    }
++};
++#endif // _VMA_SUBALLOCATION
++
++#ifndef _VMA_ALLOCATION_REQUEST
++/*
++Parameters of planned allocation inside a VmaDeviceMemoryBlock.
++item points to a FREE suballocation.
++*/
++struct VmaAllocationRequest
++{
++    VmaAllocHandle allocHandle;
++    VkDeviceSize size;
++    VmaSuballocationList::iterator item;
++    void* customData;
++    uint64_t algorithmData;
++    VmaAllocationRequestType type;
++};
++#endif // _VMA_ALLOCATION_REQUEST
++
++#ifndef _VMA_BLOCK_METADATA
++/*
++Data structure used for bookkeeping of allocations and unused ranges of memory
++in a single VkDeviceMemory block.
++*/
++class VmaBlockMetadata
++{
++public:
++    // pAllocationCallbacks, if not null, must be owned externally - alive and unchanged for the whole lifetime of this object.
++    VmaBlockMetadata(const VkAllocationCallbacks* pAllocationCallbacks,
++        VkDeviceSize bufferImageGranularity, bool isVirtual);
++    virtual ~VmaBlockMetadata() = default;
++
++    virtual void Init(VkDeviceSize size) { m_Size = size; }
++    bool IsVirtual() const { return m_IsVirtual; }
++    VkDeviceSize GetSize() const { return m_Size; }
++
++    // Validates all data structures inside this object. If not valid, returns false.
++    virtual bool Validate() const = 0;
++    virtual size_t GetAllocationCount() const = 0;
++    virtual size_t GetFreeRegionsCount() const = 0;
++    virtual VkDeviceSize GetSumFreeSize() const = 0;
++    // Returns true if this block is empty - contains only single free suballocation.
++    virtual bool IsEmpty() const = 0;
++    virtual void GetAllocationInfo(VmaAllocHandle allocHandle, VmaVirtualAllocationInfo& outInfo) = 0;
++    virtual VkDeviceSize GetAllocationOffset(VmaAllocHandle allocHandle) const = 0;
++    virtual void* GetAllocationUserData(VmaAllocHandle allocHandle) const = 0;
++
++    virtual VmaAllocHandle GetAllocationListBegin() const = 0;
++    virtual VmaAllocHandle GetNextAllocation(VmaAllocHandle prevAlloc) const = 0;
++    virtual VkDeviceSize GetNextFreeRegionSize(VmaAllocHandle alloc) const = 0;
++
++    // Shouldn't modify blockCount.
++    virtual void AddDetailedStatistics(VmaDetailedStatistics& inoutStats) const = 0;
++    virtual void AddStatistics(VmaStatistics& inoutStats) const = 0;
++
++#if VMA_STATS_STRING_ENABLED
++    virtual void PrintDetailedMap(class VmaJsonWriter& json) const = 0;
++#endif
++
++    // Tries to find a place for suballocation with given parameters inside this block.
++    // If succeeded, fills pAllocationRequest and returns true.
++    // If failed, returns false.
++    virtual bool CreateAllocationRequest(
++        VkDeviceSize allocSize,
++        VkDeviceSize allocAlignment,
++        bool upperAddress,
++        VmaSuballocationType allocType,
++        // Always one of VMA_ALLOCATION_CREATE_STRATEGY_* or VMA_ALLOCATION_INTERNAL_STRATEGY_* flags.
++        uint32_t strategy,
++        VmaAllocationRequest* pAllocationRequest) = 0;
++
++    virtual VkResult CheckCorruption(const void* pBlockData) = 0;
++
++    // Makes actual allocation based on request. Request must already be checked and valid.
++    virtual void Alloc(
++        const VmaAllocationRequest& request,
++        VmaSuballocationType type,
++        void* userData) = 0;
++
++    // Frees suballocation assigned to given memory region.
++    virtual void Free(VmaAllocHandle allocHandle) = 0;
++
++    // Frees all allocations.
++    // Careful! Don't call it if there are VmaAllocation objects owned by userData of cleared allocations!
++    virtual void Clear() = 0;
++
++    virtual void SetAllocationUserData(VmaAllocHandle allocHandle, void* userData) = 0;
++    virtual void DebugLogAllAllocations() const = 0;
++
++protected:
++    const VkAllocationCallbacks* GetAllocationCallbacks() const { return m_pAllocationCallbacks; }
++    VkDeviceSize GetBufferImageGranularity() const { return m_BufferImageGranularity; }
++    VkDeviceSize GetDebugMargin() const { return IsVirtual() ? 0 : VMA_DEBUG_MARGIN; }
++
++    void DebugLogAllocation(VkDeviceSize offset, VkDeviceSize size, void* userData) const;
++#if VMA_STATS_STRING_ENABLED
++    // mapRefCount == UINT32_MAX means unspecified.
++    void PrintDetailedMap_Begin(class VmaJsonWriter& json,
++        VkDeviceSize unusedBytes,
++        size_t allocationCount,
++        size_t unusedRangeCount) const;
++    void PrintDetailedMap_Allocation(class VmaJsonWriter& json,
++        VkDeviceSize offset, VkDeviceSize size, void* userData) const;
++    void PrintDetailedMap_UnusedRange(class VmaJsonWriter& json,
++        VkDeviceSize offset,
++        VkDeviceSize size) const;
++    void PrintDetailedMap_End(class VmaJsonWriter& json) const;
++#endif
++
++private:
++    VkDeviceSize m_Size;
++    const VkAllocationCallbacks* m_pAllocationCallbacks;
++    const VkDeviceSize m_BufferImageGranularity;
++    const bool m_IsVirtual;
++};
++
++#ifndef _VMA_BLOCK_METADATA_FUNCTIONS
++VmaBlockMetadata::VmaBlockMetadata(const VkAllocationCallbacks* pAllocationCallbacks,
++    VkDeviceSize bufferImageGranularity, bool isVirtual)
++    : m_Size(0),
++    m_pAllocationCallbacks(pAllocationCallbacks),
++    m_BufferImageGranularity(bufferImageGranularity),
++    m_IsVirtual(isVirtual) {}
++
++void VmaBlockMetadata::DebugLogAllocation(VkDeviceSize offset, VkDeviceSize size, void* userData) const
++{
++    if (IsVirtual())
++    {
++        VMA_DEBUG_LOG("UNFREED VIRTUAL ALLOCATION; Offset: %llu; Size: %llu; UserData: %p", offset, size, userData);
++    }
++    else
++    {
++        VMA_ASSERT(userData != VMA_NULL);
++        VmaAllocation allocation = reinterpret_cast<VmaAllocation>(userData);
++
++        userData = allocation->GetUserData();
++        const char* name = allocation->GetName();
++
++#if VMA_STATS_STRING_ENABLED
++        VMA_DEBUG_LOG("UNFREED ALLOCATION; Offset: %llu; Size: %llu; UserData: %p; Name: %s; Type: %s; Usage: %u",
++            offset, size, userData, name ? name : "vma_empty",
++            VMA_SUBALLOCATION_TYPE_NAMES[allocation->GetSuballocationType()],
++            allocation->GetBufferImageUsage());
++#else
++        VMA_DEBUG_LOG("UNFREED ALLOCATION; Offset: %llu; Size: %llu; UserData: %p; Name: %s; Type: %u",
++            offset, size, userData, name ? name : "vma_empty",
++            (uint32_t)allocation->GetSuballocationType());
++#endif // VMA_STATS_STRING_ENABLED
++    }
++    
++}
++
++#if VMA_STATS_STRING_ENABLED
++void VmaBlockMetadata::PrintDetailedMap_Begin(class VmaJsonWriter& json,
++    VkDeviceSize unusedBytes, size_t allocationCount, size_t unusedRangeCount) const
++{
++    json.WriteString("TotalBytes");
++    json.WriteNumber(GetSize());
++
++    json.WriteString("UnusedBytes");
++    json.WriteSize(unusedBytes);
++
++    json.WriteString("Allocations");
++    json.WriteSize(allocationCount);
++
++    json.WriteString("UnusedRanges");
++    json.WriteSize(unusedRangeCount);
++
++    json.WriteString("Suballocations");
++    json.BeginArray();
++}
++
++void VmaBlockMetadata::PrintDetailedMap_Allocation(class VmaJsonWriter& json,
++    VkDeviceSize offset, VkDeviceSize size, void* userData) const
++{
++    json.BeginObject(true);
++
++    json.WriteString("Offset");
++    json.WriteNumber(offset);
++
++    if (IsVirtual())
++    {
++        json.WriteString("Size");
++        json.WriteNumber(size);
++        if (userData)
++        {
++            json.WriteString("CustomData");
++            json.BeginString();
++            json.ContinueString_Pointer(userData);
++            json.EndString();
++        }
++    }
++    else
++    {
++        ((VmaAllocation)userData)->PrintParameters(json);
++    }
++
++    json.EndObject();
++}
++
++void VmaBlockMetadata::PrintDetailedMap_UnusedRange(class VmaJsonWriter& json,
++    VkDeviceSize offset, VkDeviceSize size) const
++{
++    json.BeginObject(true);
++
++    json.WriteString("Offset");
++    json.WriteNumber(offset);
++
++    json.WriteString("Type");
++    json.WriteString(VMA_SUBALLOCATION_TYPE_NAMES[VMA_SUBALLOCATION_TYPE_FREE]);
++
++    json.WriteString("Size");
++    json.WriteNumber(size);
++
++    json.EndObject();
++}
++
++void VmaBlockMetadata::PrintDetailedMap_End(class VmaJsonWriter& json) const
++{
++    json.EndArray();
++}
++#endif // VMA_STATS_STRING_ENABLED
++#endif // _VMA_BLOCK_METADATA_FUNCTIONS
++#endif // _VMA_BLOCK_METADATA
++
++#ifndef _VMA_BLOCK_BUFFER_IMAGE_GRANULARITY
++// Before deleting object of this class remember to call 'Destroy()'
++class VmaBlockBufferImageGranularity final
++{
++public:
++    struct ValidationContext
++    {
++        const VkAllocationCallbacks* allocCallbacks;
++        uint16_t* pageAllocs;
++    };
++
++    VmaBlockBufferImageGranularity(VkDeviceSize bufferImageGranularity);
++    ~VmaBlockBufferImageGranularity();
++
++    bool IsEnabled() const { return m_BufferImageGranularity > MAX_LOW_BUFFER_IMAGE_GRANULARITY; }
++
++    void Init(const VkAllocationCallbacks* pAllocationCallbacks, VkDeviceSize size);
++    // Before destroying object you must call free it's memory
++    void Destroy(const VkAllocationCallbacks* pAllocationCallbacks);
++
++    void RoundupAllocRequest(VmaSuballocationType allocType,
++        VkDeviceSize& inOutAllocSize,
++        VkDeviceSize& inOutAllocAlignment) const;
++
++    bool CheckConflictAndAlignUp(VkDeviceSize& inOutAllocOffset,
++        VkDeviceSize allocSize,
++        VkDeviceSize blockOffset,
++        VkDeviceSize blockSize,
++        VmaSuballocationType allocType) const;
++
++    void AllocPages(uint8_t allocType, VkDeviceSize offset, VkDeviceSize size);
++    void FreePages(VkDeviceSize offset, VkDeviceSize size);
++    void Clear();
++
++    ValidationContext StartValidation(const VkAllocationCallbacks* pAllocationCallbacks,
++        bool isVirutal) const;
++    bool Validate(ValidationContext& ctx, VkDeviceSize offset, VkDeviceSize size) const;
++    bool FinishValidation(ValidationContext& ctx) const;
++
++private:
++    static const uint16_t MAX_LOW_BUFFER_IMAGE_GRANULARITY = 256;
++
++    struct RegionInfo
++    {
++        uint8_t allocType;
++        uint16_t allocCount;
++    };
++
++    VkDeviceSize m_BufferImageGranularity;
++    uint32_t m_RegionCount;
++    RegionInfo* m_RegionInfo;
++
++    uint32_t GetStartPage(VkDeviceSize offset) const { return OffsetToPageIndex(offset & ~(m_BufferImageGranularity - 1)); }
++    uint32_t GetEndPage(VkDeviceSize offset, VkDeviceSize size) const { return OffsetToPageIndex((offset + size - 1) & ~(m_BufferImageGranularity - 1)); }
++
++    uint32_t OffsetToPageIndex(VkDeviceSize offset) const;
++    void AllocPage(RegionInfo& page, uint8_t allocType);
++};
++
++#ifndef _VMA_BLOCK_BUFFER_IMAGE_GRANULARITY_FUNCTIONS
++VmaBlockBufferImageGranularity::VmaBlockBufferImageGranularity(VkDeviceSize bufferImageGranularity)
++    : m_BufferImageGranularity(bufferImageGranularity),
++    m_RegionCount(0),
++    m_RegionInfo(VMA_NULL) {}
++
++VmaBlockBufferImageGranularity::~VmaBlockBufferImageGranularity()
++{
++    VMA_ASSERT(m_RegionInfo == VMA_NULL && "Free not called before destroying object!");
++}
++
++void VmaBlockBufferImageGranularity::Init(const VkAllocationCallbacks* pAllocationCallbacks, VkDeviceSize size)
++{
++    if (IsEnabled())
++    {
++        m_RegionCount = static_cast<uint32_t>(VmaDivideRoundingUp(size, m_BufferImageGranularity));
++        m_RegionInfo = vma_new_array(pAllocationCallbacks, RegionInfo, m_RegionCount);
++        memset(m_RegionInfo, 0, m_RegionCount * sizeof(RegionInfo));
++    }
++}
++
++void VmaBlockBufferImageGranularity::Destroy(const VkAllocationCallbacks* pAllocationCallbacks)
++{
++    if (m_RegionInfo)
++    {
++        vma_delete_array(pAllocationCallbacks, m_RegionInfo, m_RegionCount);
++        m_RegionInfo = VMA_NULL;
++    }
++}
++
++void VmaBlockBufferImageGranularity::RoundupAllocRequest(VmaSuballocationType allocType,
++    VkDeviceSize& inOutAllocSize,
++    VkDeviceSize& inOutAllocAlignment) const
++{
++    if (m_BufferImageGranularity > 1 &&
++        m_BufferImageGranularity <= MAX_LOW_BUFFER_IMAGE_GRANULARITY)
++    {
++        if (allocType == VMA_SUBALLOCATION_TYPE_UNKNOWN ||
++            allocType == VMA_SUBALLOCATION_TYPE_IMAGE_UNKNOWN ||
++            allocType == VMA_SUBALLOCATION_TYPE_IMAGE_OPTIMAL)
++        {
++            inOutAllocAlignment = VMA_MAX(inOutAllocAlignment, m_BufferImageGranularity);
++            inOutAllocSize = VmaAlignUp(inOutAllocSize, m_BufferImageGranularity);
++        }
++    }
++}
++
++bool VmaBlockBufferImageGranularity::CheckConflictAndAlignUp(VkDeviceSize& inOutAllocOffset,
++    VkDeviceSize allocSize,
++    VkDeviceSize blockOffset,
++    VkDeviceSize blockSize,
++    VmaSuballocationType allocType) const
++{
++    if (IsEnabled())
++    {
++        uint32_t startPage = GetStartPage(inOutAllocOffset);
++        if (m_RegionInfo[startPage].allocCount > 0 &&
++            VmaIsBufferImageGranularityConflict(static_cast<VmaSuballocationType>(m_RegionInfo[startPage].allocType), allocType))
++        {
++            inOutAllocOffset = VmaAlignUp(inOutAllocOffset, m_BufferImageGranularity);
++            if (blockSize < allocSize + inOutAllocOffset - blockOffset)
++                return true;
++            ++startPage;
++        }
++        uint32_t endPage = GetEndPage(inOutAllocOffset, allocSize);
++        if (endPage != startPage &&
++            m_RegionInfo[endPage].allocCount > 0 &&
++            VmaIsBufferImageGranularityConflict(static_cast<VmaSuballocationType>(m_RegionInfo[endPage].allocType), allocType))
++        {
++            return true;
++        }
++    }
++    return false;
++}
++
++void VmaBlockBufferImageGranularity::AllocPages(uint8_t allocType, VkDeviceSize offset, VkDeviceSize size)
++{
++    if (IsEnabled())
++    {
++        uint32_t startPage = GetStartPage(offset);
++        AllocPage(m_RegionInfo[startPage], allocType);
++
++        uint32_t endPage = GetEndPage(offset, size);
++        if (startPage != endPage)
++            AllocPage(m_RegionInfo[endPage], allocType);
++    }
++}
++
++void VmaBlockBufferImageGranularity::FreePages(VkDeviceSize offset, VkDeviceSize size)
++{
++    if (IsEnabled())
++    {
++        uint32_t startPage = GetStartPage(offset);
++        --m_RegionInfo[startPage].allocCount;
++        if (m_RegionInfo[startPage].allocCount == 0)
++            m_RegionInfo[startPage].allocType = VMA_SUBALLOCATION_TYPE_FREE;
++        uint32_t endPage = GetEndPage(offset, size);
++        if (startPage != endPage)
++        {
++            --m_RegionInfo[endPage].allocCount;
++            if (m_RegionInfo[endPage].allocCount == 0)
++                m_RegionInfo[endPage].allocType = VMA_SUBALLOCATION_TYPE_FREE;
++        }
++    }
++}
++
++void VmaBlockBufferImageGranularity::Clear()
++{
++    if (m_RegionInfo)
++        memset(m_RegionInfo, 0, m_RegionCount * sizeof(RegionInfo));
++}
++
++VmaBlockBufferImageGranularity::ValidationContext VmaBlockBufferImageGranularity::StartValidation(
++    const VkAllocationCallbacks* pAllocationCallbacks, bool isVirutal) const
++{
++    ValidationContext ctx{ pAllocationCallbacks, VMA_NULL };
++    if (!isVirutal && IsEnabled())
++    {
++        ctx.pageAllocs = vma_new_array(pAllocationCallbacks, uint16_t, m_RegionCount);
++        memset(ctx.pageAllocs, 0, m_RegionCount * sizeof(uint16_t));
++    }
++    return ctx;
++}
++
++bool VmaBlockBufferImageGranularity::Validate(ValidationContext& ctx,
++    VkDeviceSize offset, VkDeviceSize size) const
++{
++    if (IsEnabled())
++    {
++        uint32_t start = GetStartPage(offset);
++        ++ctx.pageAllocs[start];
++        VMA_VALIDATE(m_RegionInfo[start].allocCount > 0);
++
++        uint32_t end = GetEndPage(offset, size);
++        if (start != end)
++        {
++            ++ctx.pageAllocs[end];
++            VMA_VALIDATE(m_RegionInfo[end].allocCount > 0);
++        }
++    }
++    return true;
++}
++
++bool VmaBlockBufferImageGranularity::FinishValidation(ValidationContext& ctx) const
++{
++    // Check proper page structure
++    if (IsEnabled())
++    {
++        VMA_ASSERT(ctx.pageAllocs != VMA_NULL && "Validation context not initialized!");
++
++        for (uint32_t page = 0; page < m_RegionCount; ++page)
++        {
++            VMA_VALIDATE(ctx.pageAllocs[page] == m_RegionInfo[page].allocCount);
++        }
++        vma_delete_array(ctx.allocCallbacks, ctx.pageAllocs, m_RegionCount);
++        ctx.pageAllocs = VMA_NULL;
++    }
++    return true;
++}
++
++uint32_t VmaBlockBufferImageGranularity::OffsetToPageIndex(VkDeviceSize offset) const
++{
++    return static_cast<uint32_t>(offset >> VMA_BITSCAN_MSB(m_BufferImageGranularity));
++}
++
++void VmaBlockBufferImageGranularity::AllocPage(RegionInfo& page, uint8_t allocType)
++{
++    // When current alloc type is free then it can be overriden by new type
++    if (page.allocCount == 0 || (page.allocCount > 0 && page.allocType == VMA_SUBALLOCATION_TYPE_FREE))
++        page.allocType = allocType;
++
++    ++page.allocCount;
++}
++#endif // _VMA_BLOCK_BUFFER_IMAGE_GRANULARITY_FUNCTIONS
++#endif // _VMA_BLOCK_BUFFER_IMAGE_GRANULARITY
++
++#if 0
++#ifndef _VMA_BLOCK_METADATA_GENERIC
++class VmaBlockMetadata_Generic : public VmaBlockMetadata
++{
++    friend class VmaDefragmentationAlgorithm_Generic;
++    friend class VmaDefragmentationAlgorithm_Fast;
++    VMA_CLASS_NO_COPY(VmaBlockMetadata_Generic)
++public:
++    VmaBlockMetadata_Generic(const VkAllocationCallbacks* pAllocationCallbacks,
++        VkDeviceSize bufferImageGranularity, bool isVirtual);
++    virtual ~VmaBlockMetadata_Generic() = default;
++
++    size_t GetAllocationCount() const override { return m_Suballocations.size() - m_FreeCount; }
++    VkDeviceSize GetSumFreeSize() const override { return m_SumFreeSize; }
++    bool IsEmpty() const override { return (m_Suballocations.size() == 1) && (m_FreeCount == 1); }
++    void Free(VmaAllocHandle allocHandle) override { FreeSuballocation(FindAtOffset((VkDeviceSize)allocHandle - 1)); }
++    VkDeviceSize GetAllocationOffset(VmaAllocHandle allocHandle) const override { return (VkDeviceSize)allocHandle - 1; };
++
++    void Init(VkDeviceSize size) override;
++    bool Validate() const override;
++
++    void AddDetailedStatistics(VmaDetailedStatistics& inoutStats) const override;
++    void AddStatistics(VmaStatistics& inoutStats) const override;
++
++#if VMA_STATS_STRING_ENABLED
++    void PrintDetailedMap(class VmaJsonWriter& json, uint32_t mapRefCount) const override;
++#endif
++
++    bool CreateAllocationRequest(
++        VkDeviceSize allocSize,
++        VkDeviceSize allocAlignment,
++        bool upperAddress,
++        VmaSuballocationType allocType,
++        uint32_t strategy,
++        VmaAllocationRequest* pAllocationRequest) override;
++
++    VkResult CheckCorruption(const void* pBlockData) override;
++
++    void Alloc(
++        const VmaAllocationRequest& request,
++        VmaSuballocationType type,
++        void* userData) override;
++
++    void GetAllocationInfo(VmaAllocHandle allocHandle, VmaVirtualAllocationInfo& outInfo) override;
++    void* GetAllocationUserData(VmaAllocHandle allocHandle) const override;
++    VmaAllocHandle GetAllocationListBegin() const override;
++    VmaAllocHandle GetNextAllocation(VmaAllocHandle prevAlloc) const override;
++    void Clear() override;
++    void SetAllocationUserData(VmaAllocHandle allocHandle, void* userData) override;
++    void DebugLogAllAllocations() const override;
++
++private:
++    uint32_t m_FreeCount;
++    VkDeviceSize m_SumFreeSize;
++    VmaSuballocationList m_Suballocations;
++    // Suballocations that are free. Sorted by size, ascending.
++    VmaVector<VmaSuballocationList::iterator, VmaStlAllocator<VmaSuballocationList::iterator>> m_FreeSuballocationsBySize;
++
++    VkDeviceSize AlignAllocationSize(VkDeviceSize size) const { return IsVirtual() ? size : VmaAlignUp(size, (VkDeviceSize)16); }
++
++    VmaSuballocationList::iterator FindAtOffset(VkDeviceSize offset) const;
++    bool ValidateFreeSuballocationList() const;
++
++    // Checks if requested suballocation with given parameters can be placed in given pFreeSuballocItem.
++    // If yes, fills pOffset and returns true. If no, returns false.
++    bool CheckAllocation(
++        VkDeviceSize allocSize,
++        VkDeviceSize allocAlignment,
++        VmaSuballocationType allocType,
++        VmaSuballocationList::const_iterator suballocItem,
++        VmaAllocHandle* pAllocHandle) const;
++
++    // Given free suballocation, it merges it with following one, which must also be free.
++    void MergeFreeWithNext(VmaSuballocationList::iterator item);
++    // Releases given suballocation, making it free.
++    // Merges it with adjacent free suballocations if applicable.
++    // Returns iterator to new free suballocation at this place.
++    VmaSuballocationList::iterator FreeSuballocation(VmaSuballocationList::iterator suballocItem);
++    // Given free suballocation, it inserts it into sorted list of
++    // m_FreeSuballocationsBySize if it is suitable.
++    void RegisterFreeSuballocation(VmaSuballocationList::iterator item);
++    // Given free suballocation, it removes it from sorted list of
++    // m_FreeSuballocationsBySize if it is suitable.
++    void UnregisterFreeSuballocation(VmaSuballocationList::iterator item);
++};
++
++#ifndef _VMA_BLOCK_METADATA_GENERIC_FUNCTIONS
++VmaBlockMetadata_Generic::VmaBlockMetadata_Generic(const VkAllocationCallbacks* pAllocationCallbacks,
++    VkDeviceSize bufferImageGranularity, bool isVirtual)
++    : VmaBlockMetadata(pAllocationCallbacks, bufferImageGranularity, isVirtual),
++    m_FreeCount(0),
++    m_SumFreeSize(0),
++    m_Suballocations(VmaStlAllocator<VmaSuballocation>(pAllocationCallbacks)),
++    m_FreeSuballocationsBySize(VmaStlAllocator<VmaSuballocationList::iterator>(pAllocationCallbacks)) {}
++
++void VmaBlockMetadata_Generic::Init(VkDeviceSize size)
++{
++    VmaBlockMetadata::Init(size);
++
++    m_FreeCount = 1;
++    m_SumFreeSize = size;
++
++    VmaSuballocation suballoc = {};
++    suballoc.offset = 0;
++    suballoc.size = size;
++    suballoc.type = VMA_SUBALLOCATION_TYPE_FREE;
++
++    m_Suballocations.push_back(suballoc);
++    m_FreeSuballocationsBySize.push_back(m_Suballocations.begin());
++}
++
++bool VmaBlockMetadata_Generic::Validate() const
++{
++    VMA_VALIDATE(!m_Suballocations.empty());
++
++    // Expected offset of new suballocation as calculated from previous ones.
++    VkDeviceSize calculatedOffset = 0;
++    // Expected number of free suballocations as calculated from traversing their list.
++    uint32_t calculatedFreeCount = 0;
++    // Expected sum size of free suballocations as calculated from traversing their list.
++    VkDeviceSize calculatedSumFreeSize = 0;
++    // Expected number of free suballocations that should be registered in
++    // m_FreeSuballocationsBySize calculated from traversing their list.
++    size_t freeSuballocationsToRegister = 0;
++    // True if previous visited suballocation was free.
++    bool prevFree = false;
++
++    const VkDeviceSize debugMargin = GetDebugMargin();
++
++    for (const auto& subAlloc : m_Suballocations)
++    {
++        // Actual offset of this suballocation doesn't match expected one.
++        VMA_VALIDATE(subAlloc.offset == calculatedOffset);
++
++        const bool currFree = (subAlloc.type == VMA_SUBALLOCATION_TYPE_FREE);
++        // Two adjacent free suballocations are invalid. They should be merged.
++        VMA_VALIDATE(!prevFree || !currFree);
++
++        VmaAllocation alloc = (VmaAllocation)subAlloc.userData;
++        if (!IsVirtual())
++        {
++            VMA_VALIDATE(currFree == (alloc == VK_NULL_HANDLE));
++        }
++
++        if (currFree)
++        {
++            calculatedSumFreeSize += subAlloc.size;
++            ++calculatedFreeCount;
++            ++freeSuballocationsToRegister;
++
++            // Margin required between allocations - every free space must be at least that large.
++            VMA_VALIDATE(subAlloc.size >= debugMargin);
++        }
++        else
++        {
++            if (!IsVirtual())
++            {
++                VMA_VALIDATE((VkDeviceSize)alloc->GetAllocHandle() == subAlloc.offset + 1);
++                VMA_VALIDATE(alloc->GetSize() == subAlloc.size);
++            }
++
++            // Margin required between allocations - previous allocation must be free.
++            VMA_VALIDATE(debugMargin == 0 || prevFree);
++        }
++
++        calculatedOffset += subAlloc.size;
++        prevFree = currFree;
++    }
++
++    // Number of free suballocations registered in m_FreeSuballocationsBySize doesn't
++    // match expected one.
++    VMA_VALIDATE(m_FreeSuballocationsBySize.size() == freeSuballocationsToRegister);
++
++    VkDeviceSize lastSize = 0;
++    for (size_t i = 0; i < m_FreeSuballocationsBySize.size(); ++i)
++    {
++        VmaSuballocationList::iterator suballocItem = m_FreeSuballocationsBySize[i];
++
++        // Only free suballocations can be registered in m_FreeSuballocationsBySize.
++        VMA_VALIDATE(suballocItem->type == VMA_SUBALLOCATION_TYPE_FREE);
++        // They must be sorted by size ascending.
++        VMA_VALIDATE(suballocItem->size >= lastSize);
++
++        lastSize = suballocItem->size;
++    }
++
++    // Check if totals match calculated values.
++    VMA_VALIDATE(ValidateFreeSuballocationList());
++    VMA_VALIDATE(calculatedOffset == GetSize());
++    VMA_VALIDATE(calculatedSumFreeSize == m_SumFreeSize);
++    VMA_VALIDATE(calculatedFreeCount == m_FreeCount);
++
++    return true;
++}
++
++void VmaBlockMetadata_Generic::AddDetailedStatistics(VmaDetailedStatistics& inoutStats) const
++{
++    const uint32_t rangeCount = (uint32_t)m_Suballocations.size();
++    inoutStats.statistics.blockCount++;
++    inoutStats.statistics.blockBytes += GetSize();
++
++    for (const auto& suballoc : m_Suballocations)
++    {
++        if (suballoc.type != VMA_SUBALLOCATION_TYPE_FREE)
++            VmaAddDetailedStatisticsAllocation(inoutStats, suballoc.size);
++        else
++            VmaAddDetailedStatisticsUnusedRange(inoutStats, suballoc.size);
++    }
++}
++
++void VmaBlockMetadata_Generic::AddStatistics(VmaStatistics& inoutStats) const
++{
++    inoutStats.blockCount++;
++    inoutStats.allocationCount += (uint32_t)m_Suballocations.size() - m_FreeCount;
++    inoutStats.blockBytes += GetSize();
++    inoutStats.allocationBytes += GetSize() - m_SumFreeSize;
++}
++
++#if VMA_STATS_STRING_ENABLED
++void VmaBlockMetadata_Generic::PrintDetailedMap(class VmaJsonWriter& json, uint32_t mapRefCount) const
++{
++    PrintDetailedMap_Begin(json,
++        m_SumFreeSize, // unusedBytes
++        m_Suballocations.size() - (size_t)m_FreeCount, // allocationCount
++        m_FreeCount, // unusedRangeCount
++        mapRefCount);
++
++    for (const auto& suballoc : m_Suballocations)
++    {
++        if (suballoc.type == VMA_SUBALLOCATION_TYPE_FREE)
++        {
++            PrintDetailedMap_UnusedRange(json, suballoc.offset, suballoc.size);
++        }
++        else
++        {
++            PrintDetailedMap_Allocation(json, suballoc.offset, suballoc.size, suballoc.userData);
++        }
++    }
++
++    PrintDetailedMap_End(json);
++}
++#endif // VMA_STATS_STRING_ENABLED
++
++bool VmaBlockMetadata_Generic::CreateAllocationRequest(
++    VkDeviceSize allocSize,
++    VkDeviceSize allocAlignment,
++    bool upperAddress,
++    VmaSuballocationType allocType,
++    uint32_t strategy,
++    VmaAllocationRequest* pAllocationRequest)
++{
++    VMA_ASSERT(allocSize > 0);
++    VMA_ASSERT(!upperAddress);
++    VMA_ASSERT(allocType != VMA_SUBALLOCATION_TYPE_FREE);
++    VMA_ASSERT(pAllocationRequest != VMA_NULL);
++    VMA_HEAVY_ASSERT(Validate());
++
++    allocSize = AlignAllocationSize(allocSize);
++
++    pAllocationRequest->type = VmaAllocationRequestType::Normal;
++    pAllocationRequest->size = allocSize;
++
++    const VkDeviceSize debugMargin = GetDebugMargin();
++
++    // There is not enough total free space in this block to fulfill the request: Early return.
++    if (m_SumFreeSize < allocSize + debugMargin)
++    {
++        return false;
++    }
++
++    // New algorithm, efficiently searching freeSuballocationsBySize.
++    const size_t freeSuballocCount = m_FreeSuballocationsBySize.size();
++    if (freeSuballocCount > 0)
++    {
++        if (strategy == 0 ||
++            strategy == VMA_ALLOCATION_CREATE_STRATEGY_MIN_MEMORY_BIT)
++        {
++            // Find first free suballocation with size not less than allocSize + debugMargin.
++            VmaSuballocationList::iterator* const it = VmaBinaryFindFirstNotLess(
++                m_FreeSuballocationsBySize.data(),
++                m_FreeSuballocationsBySize.data() + freeSuballocCount,
++                allocSize + debugMargin,
++                VmaSuballocationItemSizeLess());
++            size_t index = it - m_FreeSuballocationsBySize.data();
++            for (; index < freeSuballocCount; ++index)
++            {
++                if (CheckAllocation(
++                    allocSize,
++                    allocAlignment,
++                    allocType,
++                    m_FreeSuballocationsBySize[index],
++                    &pAllocationRequest->allocHandle))
++                {
++                    pAllocationRequest->item = m_FreeSuballocationsBySize[index];
++                    return true;
++                }
++            }
++        }
++        else if (strategy == VMA_ALLOCATION_INTERNAL_STRATEGY_MIN_OFFSET)
++        {
++            for (VmaSuballocationList::iterator it = m_Suballocations.begin();
++                it != m_Suballocations.end();
++                ++it)
++            {
++                if (it->type == VMA_SUBALLOCATION_TYPE_FREE && CheckAllocation(
++                    allocSize,
++                    allocAlignment,
++                    allocType,
++                    it,
++                    &pAllocationRequest->allocHandle))
++                {
++                    pAllocationRequest->item = it;
++                    return true;
++                }
++            }
++        }
++        else
++        {
++            VMA_ASSERT(strategy & (VMA_ALLOCATION_CREATE_STRATEGY_MIN_TIME_BIT | VMA_ALLOCATION_CREATE_STRATEGY_MIN_OFFSET_BIT ));
++            // Search staring from biggest suballocations.
++            for (size_t index = freeSuballocCount; index--; )
++            {
++                if (CheckAllocation(
++                    allocSize,
++                    allocAlignment,
++                    allocType,
++                    m_FreeSuballocationsBySize[index],
++                    &pAllocationRequest->allocHandle))
++                {
++                    pAllocationRequest->item = m_FreeSuballocationsBySize[index];
++                    return true;
++                }
++            }
++        }
++    }
++
++    return false;
++}
++
++VkResult VmaBlockMetadata_Generic::CheckCorruption(const void* pBlockData)
++{
++    for (auto& suballoc : m_Suballocations)
++    {
++        if (suballoc.type != VMA_SUBALLOCATION_TYPE_FREE)
++        {
++            if (!VmaValidateMagicValue(pBlockData, suballoc.offset + suballoc.size))
++            {
++                VMA_ASSERT(0 && "MEMORY CORRUPTION DETECTED AFTER VALIDATED ALLOCATION!");
++                return VK_ERROR_UNKNOWN_COPY;
++            }
++        }
++    }
++
++    return VK_SUCCESS;
++}
++
++void VmaBlockMetadata_Generic::Alloc(
++    const VmaAllocationRequest& request,
++    VmaSuballocationType type,
++    void* userData)
++{
++    VMA_ASSERT(request.type == VmaAllocationRequestType::Normal);
++    VMA_ASSERT(request.item != m_Suballocations.end());
++    VmaSuballocation& suballoc = *request.item;
++    // Given suballocation is a free block.
++    VMA_ASSERT(suballoc.type == VMA_SUBALLOCATION_TYPE_FREE);
++
++    // Given offset is inside this suballocation.
++    VMA_ASSERT((VkDeviceSize)request.allocHandle - 1 >= suballoc.offset);
++    const VkDeviceSize paddingBegin = (VkDeviceSize)request.allocHandle - suballoc.offset - 1;
++    VMA_ASSERT(suballoc.size >= paddingBegin + request.size);
++    const VkDeviceSize paddingEnd = suballoc.size - paddingBegin - request.size;
++
++    // Unregister this free suballocation from m_FreeSuballocationsBySize and update
++    // it to become used.
++    UnregisterFreeSuballocation(request.item);
++
++    suballoc.offset = (VkDeviceSize)request.allocHandle - 1;
++    suballoc.size = request.size;
++    suballoc.type = type;
++    suballoc.userData = userData;
++
++    // If there are any free bytes remaining at the end, insert new free suballocation after current one.
++    if (paddingEnd)
++    {
++        VmaSuballocation paddingSuballoc = {};
++        paddingSuballoc.offset = suballoc.offset + suballoc.size;
++        paddingSuballoc.size = paddingEnd;
++        paddingSuballoc.type = VMA_SUBALLOCATION_TYPE_FREE;
++        VmaSuballocationList::iterator next = request.item;
++        ++next;
++        const VmaSuballocationList::iterator paddingEndItem =
++            m_Suballocations.insert(next, paddingSuballoc);
++        RegisterFreeSuballocation(paddingEndItem);
++    }
++
++    // If there are any free bytes remaining at the beginning, insert new free suballocation before current one.
++    if (paddingBegin)
++    {
++        VmaSuballocation paddingSuballoc = {};
++        paddingSuballoc.offset = suballoc.offset - paddingBegin;
++        paddingSuballoc.size = paddingBegin;
++        paddingSuballoc.type = VMA_SUBALLOCATION_TYPE_FREE;
++        const VmaSuballocationList::iterator paddingBeginItem =
++            m_Suballocations.insert(request.item, paddingSuballoc);
++        RegisterFreeSuballocation(paddingBeginItem);
++    }
++
++    // Update totals.
++    m_FreeCount = m_FreeCount - 1;
++    if (paddingBegin > 0)
++    {
++        ++m_FreeCount;
++    }
++    if (paddingEnd > 0)
++    {
++        ++m_FreeCount;
++    }
++    m_SumFreeSize -= request.size;
++}
++
++void VmaBlockMetadata_Generic::GetAllocationInfo(VmaAllocHandle allocHandle, VmaVirtualAllocationInfo& outInfo)
++{
++    outInfo.offset = (VkDeviceSize)allocHandle - 1;
++    const VmaSuballocation& suballoc = *FindAtOffset(outInfo.offset);
++    outInfo.size = suballoc.size;
++    outInfo.pUserData = suballoc.userData;
++}
++
++void* VmaBlockMetadata_Generic::GetAllocationUserData(VmaAllocHandle allocHandle) const
++{
++    return FindAtOffset((VkDeviceSize)allocHandle - 1)->userData;
++}
++
++VmaAllocHandle VmaBlockMetadata_Generic::GetAllocationListBegin() const
++{
++    if (IsEmpty())
++        return VK_NULL_HANDLE;
++
++    for (const auto& suballoc : m_Suballocations)
++    {
++        if (suballoc.type != VMA_SUBALLOCATION_TYPE_FREE)
++            return (VmaAllocHandle)(suballoc.offset + 1);
++    }
++    VMA_ASSERT(false && "Should contain at least 1 allocation!");
++    return VK_NULL_HANDLE;
++}
++
++VmaAllocHandle VmaBlockMetadata_Generic::GetNextAllocation(VmaAllocHandle prevAlloc) const
++{
++    VmaSuballocationList::const_iterator prev = FindAtOffset((VkDeviceSize)prevAlloc - 1);
++
++    for (VmaSuballocationList::const_iterator it = ++prev; it != m_Suballocations.end(); ++it)
++    {
++        if (it->type != VMA_SUBALLOCATION_TYPE_FREE)
++            return (VmaAllocHandle)(it->offset + 1);
++    }
++    return VK_NULL_HANDLE;
++}
++
++void VmaBlockMetadata_Generic::Clear()
++{
++    const VkDeviceSize size = GetSize();
++
++    VMA_ASSERT(IsVirtual());
++    m_FreeCount = 1;
++    m_SumFreeSize = size;
++    m_Suballocations.clear();
++    m_FreeSuballocationsBySize.clear();
++
++    VmaSuballocation suballoc = {};
++    suballoc.offset = 0;
++    suballoc.size = size;
++    suballoc.type = VMA_SUBALLOCATION_TYPE_FREE;
++    m_Suballocations.push_back(suballoc);
++
++    m_FreeSuballocationsBySize.push_back(m_Suballocations.begin());
++}
++
++void VmaBlockMetadata_Generic::SetAllocationUserData(VmaAllocHandle allocHandle, void* userData)
++{
++    VmaSuballocation& suballoc = *FindAtOffset((VkDeviceSize)allocHandle - 1);
++    suballoc.userData = userData;
++}
++
++void VmaBlockMetadata_Generic::DebugLogAllAllocations() const
++{
++    for (const auto& suballoc : m_Suballocations)
++    {
++        if (suballoc.type != VMA_SUBALLOCATION_TYPE_FREE)
++            DebugLogAllocation(suballoc.offset, suballoc.size, suballoc.userData);
++    }
++}
++
++VmaSuballocationList::iterator VmaBlockMetadata_Generic::FindAtOffset(VkDeviceSize offset) const
++{
++    VMA_HEAVY_ASSERT(!m_Suballocations.empty());
++    const VkDeviceSize last = m_Suballocations.rbegin()->offset;
++    if (last == offset)
++        return m_Suballocations.rbegin().drop_const();
++    const VkDeviceSize first = m_Suballocations.begin()->offset;
++    if (first == offset)
++        return m_Suballocations.begin().drop_const();
++
++    const size_t suballocCount = m_Suballocations.size();
++    const VkDeviceSize step = (last - first + m_Suballocations.begin()->size) / suballocCount;
++    auto findSuballocation = [&](auto begin, auto end) -> VmaSuballocationList::iterator
++    {
++        for (auto suballocItem = begin;
++            suballocItem != end;
++            ++suballocItem)
++        {
++            if (suballocItem->offset == offset)
++                return suballocItem.drop_const();
++        }
++        VMA_ASSERT(false && "Not found!");
++        return m_Suballocations.end().drop_const();
++    };
++    // If requested offset is closer to the end of range, search from the end
++    if (offset - first > suballocCount * step / 2)
++    {
++        return findSuballocation(m_Suballocations.rbegin(), m_Suballocations.rend());
++    }
++    return findSuballocation(m_Suballocations.begin(), m_Suballocations.end());
++}
++
++bool VmaBlockMetadata_Generic::ValidateFreeSuballocationList() const
++{
++    VkDeviceSize lastSize = 0;
++    for (size_t i = 0, count = m_FreeSuballocationsBySize.size(); i < count; ++i)
++    {
++        const VmaSuballocationList::iterator it = m_FreeSuballocationsBySize[i];
++
++        VMA_VALIDATE(it->type == VMA_SUBALLOCATION_TYPE_FREE);
++        VMA_VALIDATE(it->size >= lastSize);
++        lastSize = it->size;
++    }
++    return true;
++}
++
++bool VmaBlockMetadata_Generic::CheckAllocation(
++    VkDeviceSize allocSize,
++    VkDeviceSize allocAlignment,
++    VmaSuballocationType allocType,
++    VmaSuballocationList::const_iterator suballocItem,
++    VmaAllocHandle* pAllocHandle) const
++{
++    VMA_ASSERT(allocSize > 0);
++    VMA_ASSERT(allocType != VMA_SUBALLOCATION_TYPE_FREE);
++    VMA_ASSERT(suballocItem != m_Suballocations.cend());
++    VMA_ASSERT(pAllocHandle != VMA_NULL);
++
++    const VkDeviceSize debugMargin = GetDebugMargin();
++    const VkDeviceSize bufferImageGranularity = GetBufferImageGranularity();
++
++    const VmaSuballocation& suballoc = *suballocItem;
++    VMA_ASSERT(suballoc.type == VMA_SUBALLOCATION_TYPE_FREE);
++
++    // Size of this suballocation is too small for this request: Early return.
++    if (suballoc.size < allocSize)
++    {
++        return false;
++    }
++
++    // Start from offset equal to beginning of this suballocation.
++    VkDeviceSize offset = suballoc.offset + (suballocItem == m_Suballocations.cbegin() ? 0 : GetDebugMargin());
++
++    // Apply debugMargin from the end of previous alloc.
++    if (debugMargin > 0)
++    {
++        offset += debugMargin;
++    }
++
++    // Apply alignment.
++    offset = VmaAlignUp(offset, allocAlignment);
++
++    // Check previous suballocations for BufferImageGranularity conflicts.
++    // Make bigger alignment if necessary.
++    if (bufferImageGranularity > 1 && bufferImageGranularity != allocAlignment)
++    {
++        bool bufferImageGranularityConflict = false;
++        VmaSuballocationList::const_iterator prevSuballocItem = suballocItem;
++        while (prevSuballocItem != m_Suballocations.cbegin())
++        {
++            --prevSuballocItem;
++            const VmaSuballocation& prevSuballoc = *prevSuballocItem;
++            if (VmaBlocksOnSamePage(prevSuballoc.offset, prevSuballoc.size, offset, bufferImageGranularity))
++            {
++                if (VmaIsBufferImageGranularityConflict(prevSuballoc.type, allocType))
++                {
++                    bufferImageGranularityConflict = true;
++                    break;
++                }
++            }
++            else
++                // Already on previous page.
++                break;
++        }
++        if (bufferImageGranularityConflict)
++        {
++            offset = VmaAlignUp(offset, bufferImageGranularity);
++        }
++    }
++
++    // Calculate padding at the beginning based on current offset.
++    const VkDeviceSize paddingBegin = offset - suballoc.offset;
++
++    // Fail if requested size plus margin after is bigger than size of this suballocation.
++    if (paddingBegin + allocSize + debugMargin > suballoc.size)
++    {
++        return false;
++    }
++
++    // Check next suballocations for BufferImageGranularity conflicts.
++    // If conflict exists, allocation cannot be made here.
++    if (allocSize % bufferImageGranularity || offset % bufferImageGranularity)
++    {
++        VmaSuballocationList::const_iterator nextSuballocItem = suballocItem;
++        ++nextSuballocItem;
++        while (nextSuballocItem != m_Suballocations.cend())
++        {
++            const VmaSuballocation& nextSuballoc = *nextSuballocItem;
++            if (VmaBlocksOnSamePage(offset, allocSize, nextSuballoc.offset, bufferImageGranularity))
++            {
++                if (VmaIsBufferImageGranularityConflict(allocType, nextSuballoc.type))
++                {
++                    return false;
++                }
++            }
++            else
++            {
++                // Already on next page.
++                break;
++            }
++            ++nextSuballocItem;
++        }
++    }
++
++    *pAllocHandle = (VmaAllocHandle)(offset + 1);
++    // All tests passed: Success. pAllocHandle is already filled.
++    return true;
++}
++
++void VmaBlockMetadata_Generic::MergeFreeWithNext(VmaSuballocationList::iterator item)
++{
++    VMA_ASSERT(item != m_Suballocations.end());
++    VMA_ASSERT(item->type == VMA_SUBALLOCATION_TYPE_FREE);
++
++    VmaSuballocationList::iterator nextItem = item;
++    ++nextItem;
++    VMA_ASSERT(nextItem != m_Suballocations.end());
++    VMA_ASSERT(nextItem->type == VMA_SUBALLOCATION_TYPE_FREE);
++
++    item->size += nextItem->size;
++    --m_FreeCount;
++    m_Suballocations.erase(nextItem);
++}
++
++VmaSuballocationList::iterator VmaBlockMetadata_Generic::FreeSuballocation(VmaSuballocationList::iterator suballocItem)
++{
++    // Change this suballocation to be marked as free.
++    VmaSuballocation& suballoc = *suballocItem;
++    suballoc.type = VMA_SUBALLOCATION_TYPE_FREE;
++    suballoc.userData = VMA_NULL;
++
++    // Update totals.
++    ++m_FreeCount;
++    m_SumFreeSize += suballoc.size;
++
++    // Merge with previous and/or next suballocation if it's also free.
++    bool mergeWithNext = false;
++    bool mergeWithPrev = false;
++
++    VmaSuballocationList::iterator nextItem = suballocItem;
++    ++nextItem;
++    if ((nextItem != m_Suballocations.end()) && (nextItem->type == VMA_SUBALLOCATION_TYPE_FREE))
++    {
++        mergeWithNext = true;
++    }
++
++    VmaSuballocationList::iterator prevItem = suballocItem;
++    if (suballocItem != m_Suballocations.begin())
++    {
++        --prevItem;
++        if (prevItem->type == VMA_SUBALLOCATION_TYPE_FREE)
++        {
++            mergeWithPrev = true;
++        }
++    }
++
++    if (mergeWithNext)
++    {
++        UnregisterFreeSuballocation(nextItem);
++        MergeFreeWithNext(suballocItem);
++    }
++
++    if (mergeWithPrev)
++    {
++        UnregisterFreeSuballocation(prevItem);
++        MergeFreeWithNext(prevItem);
++        RegisterFreeSuballocation(prevItem);
++        return prevItem;
++    }
++    else
++    {
++        RegisterFreeSuballocation(suballocItem);
++        return suballocItem;
++    }
++}
++
++void VmaBlockMetadata_Generic::RegisterFreeSuballocation(VmaSuballocationList::iterator item)
++{
++    VMA_ASSERT(item->type == VMA_SUBALLOCATION_TYPE_FREE);
++    VMA_ASSERT(item->size > 0);
++
++    // You may want to enable this validation at the beginning or at the end of
++    // this function, depending on what do you want to check.
++    VMA_HEAVY_ASSERT(ValidateFreeSuballocationList());
++
++    if (m_FreeSuballocationsBySize.empty())
++    {
++        m_FreeSuballocationsBySize.push_back(item);
++    }
++    else
++    {
++        VmaVectorInsertSorted<VmaSuballocationItemSizeLess>(m_FreeSuballocationsBySize, item);
++    }
++
++    //VMA_HEAVY_ASSERT(ValidateFreeSuballocationList());
++}
++
++void VmaBlockMetadata_Generic::UnregisterFreeSuballocation(VmaSuballocationList::iterator item)
++{
++    VMA_ASSERT(item->type == VMA_SUBALLOCATION_TYPE_FREE);
++    VMA_ASSERT(item->size > 0);
++
++    // You may want to enable this validation at the beginning or at the end of
++    // this function, depending on what do you want to check.
++    VMA_HEAVY_ASSERT(ValidateFreeSuballocationList());
++
++    VmaSuballocationList::iterator* const it = VmaBinaryFindFirstNotLess(
++        m_FreeSuballocationsBySize.data(),
++        m_FreeSuballocationsBySize.data() + m_FreeSuballocationsBySize.size(),
++        item,
++        VmaSuballocationItemSizeLess());
++    for (size_t index = it - m_FreeSuballocationsBySize.data();
++        index < m_FreeSuballocationsBySize.size();
++        ++index)
++    {
++        if (m_FreeSuballocationsBySize[index] == item)
++        {
++            VmaVectorRemove(m_FreeSuballocationsBySize, index);
++            return;
++        }
++        VMA_ASSERT((m_FreeSuballocationsBySize[index]->size == item->size) && "Not found.");
++    }
++    VMA_ASSERT(0 && "Not found.");
++
++    //VMA_HEAVY_ASSERT(ValidateFreeSuballocationList());
++}
++#endif // _VMA_BLOCK_METADATA_GENERIC_FUNCTIONS
++#endif // _VMA_BLOCK_METADATA_GENERIC
++#endif // #if 0
++
++#ifndef _VMA_BLOCK_METADATA_LINEAR
++/*
++Allocations and their references in internal data structure look like this:
++
++if(m_2ndVectorMode == SECOND_VECTOR_EMPTY):
++
++        0 +-------+
++          |       |
++          |       |
++          |       |
++          +-------+
++          | Alloc |  1st[m_1stNullItemsBeginCount]
++          +-------+
++          | Alloc |  1st[m_1stNullItemsBeginCount + 1]
++          +-------+
++          |  ...  |
++          +-------+
++          | Alloc |  1st[1st.size() - 1]
++          +-------+
++          |       |
++          |       |
++          |       |
++GetSize() +-------+
++
++if(m_2ndVectorMode == SECOND_VECTOR_RING_BUFFER):
++
++        0 +-------+
++          | Alloc |  2nd[0]
++          +-------+
++          | Alloc |  2nd[1]
++          +-------+
++          |  ...  |
++          +-------+
++          | Alloc |  2nd[2nd.size() - 1]
++          +-------+
++          |       |
++          |       |
++          |       |
++          +-------+
++          | Alloc |  1st[m_1stNullItemsBeginCount]
++          +-------+
++          | Alloc |  1st[m_1stNullItemsBeginCount + 1]
++          +-------+
++          |  ...  |
++          +-------+
++          | Alloc |  1st[1st.size() - 1]
++          +-------+
++          |       |
++GetSize() +-------+
++
++if(m_2ndVectorMode == SECOND_VECTOR_DOUBLE_STACK):
++
++        0 +-------+
++          |       |
++          |       |
++          |       |
++          +-------+
++          | Alloc |  1st[m_1stNullItemsBeginCount]
++          +-------+
++          | Alloc |  1st[m_1stNullItemsBeginCount + 1]
++          +-------+
++          |  ...  |
++          +-------+
++          | Alloc |  1st[1st.size() - 1]
++          +-------+
++          |       |
++          |       |
++          |       |
++          +-------+
++          | Alloc |  2nd[2nd.size() - 1]
++          +-------+
++          |  ...  |
++          +-------+
++          | Alloc |  2nd[1]
++          +-------+
++          | Alloc |  2nd[0]
++GetSize() +-------+
++
++*/
++class VmaBlockMetadata_Linear : public VmaBlockMetadata
++{
++    VMA_CLASS_NO_COPY(VmaBlockMetadata_Linear)
++public:
++    VmaBlockMetadata_Linear(const VkAllocationCallbacks* pAllocationCallbacks,
++        VkDeviceSize bufferImageGranularity, bool isVirtual);
++    virtual ~VmaBlockMetadata_Linear() = default;
++
++    VkDeviceSize GetSumFreeSize() const override { return m_SumFreeSize; }
++    bool IsEmpty() const override { return GetAllocationCount() == 0; }
++    VkDeviceSize GetAllocationOffset(VmaAllocHandle allocHandle) const override { return (VkDeviceSize)allocHandle - 1; };
++
++    void Init(VkDeviceSize size) override;
++    bool Validate() const override;
++    size_t GetAllocationCount() const override;
++    size_t GetFreeRegionsCount() const override;
++
++    void AddDetailedStatistics(VmaDetailedStatistics& inoutStats) const override;
++    void AddStatistics(VmaStatistics& inoutStats) const override;
++
++#if VMA_STATS_STRING_ENABLED
++    void PrintDetailedMap(class VmaJsonWriter& json) const override;
++#endif
++
++    bool CreateAllocationRequest(
++        VkDeviceSize allocSize,
++        VkDeviceSize allocAlignment,
++        bool upperAddress,
++        VmaSuballocationType allocType,
++        uint32_t strategy,
++        VmaAllocationRequest* pAllocationRequest) override;
++
++    VkResult CheckCorruption(const void* pBlockData) override;
++
++    void Alloc(
++        const VmaAllocationRequest& request,
++        VmaSuballocationType type,
++        void* userData) override;
++
++    void Free(VmaAllocHandle allocHandle) override;
++    void GetAllocationInfo(VmaAllocHandle allocHandle, VmaVirtualAllocationInfo& outInfo) override;
++    void* GetAllocationUserData(VmaAllocHandle allocHandle) const override;
++    VmaAllocHandle GetAllocationListBegin() const override;
++    VmaAllocHandle GetNextAllocation(VmaAllocHandle prevAlloc) const override;
++    VkDeviceSize GetNextFreeRegionSize(VmaAllocHandle alloc) const override;
++    void Clear() override;
++    void SetAllocationUserData(VmaAllocHandle allocHandle, void* userData) override;
++    void DebugLogAllAllocations() const override;
++
++private:
++    /*
++    There are two suballocation vectors, used in ping-pong way.
++    The one with index m_1stVectorIndex is called 1st.
++    The one with index (m_1stVectorIndex ^ 1) is called 2nd.
++    2nd can be non-empty only when 1st is not empty.
++    When 2nd is not empty, m_2ndVectorMode indicates its mode of operation.
++    */
++    typedef VmaVector<VmaSuballocation, VmaStlAllocator<VmaSuballocation>> SuballocationVectorType;
++
++    enum SECOND_VECTOR_MODE
++    {
++        SECOND_VECTOR_EMPTY,
++        /*
++        Suballocations in 2nd vector are created later than the ones in 1st, but they
++        all have smaller offset.
++        */
++        SECOND_VECTOR_RING_BUFFER,
++        /*
++        Suballocations in 2nd vector are upper side of double stack.
++        They all have offsets higher than those in 1st vector.
++        Top of this stack means smaller offsets, but higher indices in this vector.
++        */
++        SECOND_VECTOR_DOUBLE_STACK,
++    };
++
++    VkDeviceSize m_SumFreeSize;
++    SuballocationVectorType m_Suballocations0, m_Suballocations1;
++    uint32_t m_1stVectorIndex;
++    SECOND_VECTOR_MODE m_2ndVectorMode;
++    // Number of items in 1st vector with hAllocation = null at the beginning.
++    size_t m_1stNullItemsBeginCount;
++    // Number of other items in 1st vector with hAllocation = null somewhere in the middle.
++    size_t m_1stNullItemsMiddleCount;
++    // Number of items in 2nd vector with hAllocation = null.
++    size_t m_2ndNullItemsCount;
++
++    SuballocationVectorType& AccessSuballocations1st() { return m_1stVectorIndex ? m_Suballocations1 : m_Suballocations0; }
++    SuballocationVectorType& AccessSuballocations2nd() { return m_1stVectorIndex ? m_Suballocations0 : m_Suballocations1; }
++    const SuballocationVectorType& AccessSuballocations1st() const { return m_1stVectorIndex ? m_Suballocations1 : m_Suballocations0; }
++    const SuballocationVectorType& AccessSuballocations2nd() const { return m_1stVectorIndex ? m_Suballocations0 : m_Suballocations1; }
++
++    VmaSuballocation& FindSuballocation(VkDeviceSize offset) const;
++    bool ShouldCompact1st() const;
++    void CleanupAfterFree();
++
++    bool CreateAllocationRequest_LowerAddress(
++        VkDeviceSize allocSize,
++        VkDeviceSize allocAlignment,
++        VmaSuballocationType allocType,
++        uint32_t strategy,
++        VmaAllocationRequest* pAllocationRequest);
++    bool CreateAllocationRequest_UpperAddress(
++        VkDeviceSize allocSize,
++        VkDeviceSize allocAlignment,
++        VmaSuballocationType allocType,
++        uint32_t strategy,
++        VmaAllocationRequest* pAllocationRequest);
++};
++
++#ifndef _VMA_BLOCK_METADATA_LINEAR_FUNCTIONS
++VmaBlockMetadata_Linear::VmaBlockMetadata_Linear(const VkAllocationCallbacks* pAllocationCallbacks,
++    VkDeviceSize bufferImageGranularity, bool isVirtual)
++    : VmaBlockMetadata(pAllocationCallbacks, bufferImageGranularity, isVirtual),
++    m_SumFreeSize(0),
++    m_Suballocations0(VmaStlAllocator<VmaSuballocation>(pAllocationCallbacks)),
++    m_Suballocations1(VmaStlAllocator<VmaSuballocation>(pAllocationCallbacks)),
++    m_1stVectorIndex(0),
++    m_2ndVectorMode(SECOND_VECTOR_EMPTY),
++    m_1stNullItemsBeginCount(0),
++    m_1stNullItemsMiddleCount(0),
++    m_2ndNullItemsCount(0) {}
++
++void VmaBlockMetadata_Linear::Init(VkDeviceSize size)
++{
++    VmaBlockMetadata::Init(size);
++    m_SumFreeSize = size;
++}
++
++bool VmaBlockMetadata_Linear::Validate() const
++{
++    const SuballocationVectorType& suballocations1st = AccessSuballocations1st();
++    const SuballocationVectorType& suballocations2nd = AccessSuballocations2nd();
++
++    VMA_VALIDATE(suballocations2nd.empty() == (m_2ndVectorMode == SECOND_VECTOR_EMPTY));
++    VMA_VALIDATE(!suballocations1st.empty() ||
++        suballocations2nd.empty() ||
++        m_2ndVectorMode != SECOND_VECTOR_RING_BUFFER);
++
++    if (!suballocations1st.empty())
++    {
++        // Null item at the beginning should be accounted into m_1stNullItemsBeginCount.
++        VMA_VALIDATE(suballocations1st[m_1stNullItemsBeginCount].type != VMA_SUBALLOCATION_TYPE_FREE);
++        // Null item at the end should be just pop_back().
++        VMA_VALIDATE(suballocations1st.back().type != VMA_SUBALLOCATION_TYPE_FREE);
++    }
++    if (!suballocations2nd.empty())
++    {
++        // Null item at the end should be just pop_back().
++        VMA_VALIDATE(suballocations2nd.back().type != VMA_SUBALLOCATION_TYPE_FREE);
++    }
++
++    VMA_VALIDATE(m_1stNullItemsBeginCount + m_1stNullItemsMiddleCount <= suballocations1st.size());
++    VMA_VALIDATE(m_2ndNullItemsCount <= suballocations2nd.size());
++
++    VkDeviceSize sumUsedSize = 0;
++    const size_t suballoc1stCount = suballocations1st.size();
++    const VkDeviceSize debugMargin = GetDebugMargin();
++    VkDeviceSize offset = 0;
++
++    if (m_2ndVectorMode == SECOND_VECTOR_RING_BUFFER)
++    {
++        const size_t suballoc2ndCount = suballocations2nd.size();
++        size_t nullItem2ndCount = 0;
++        for (size_t i = 0; i < suballoc2ndCount; ++i)
++        {
++            const VmaSuballocation& suballoc = suballocations2nd[i];
++            const bool currFree = (suballoc.type == VMA_SUBALLOCATION_TYPE_FREE);
++
++            VmaAllocation const alloc = (VmaAllocation)suballoc.userData;
++            if (!IsVirtual())
++            {
++                VMA_VALIDATE(currFree == (alloc == VK_NULL_HANDLE));
++            }
++            VMA_VALIDATE(suballoc.offset >= offset);
++
++            if (!currFree)
++            {
++                if (!IsVirtual())
++                {
++                    VMA_VALIDATE((VkDeviceSize)alloc->GetAllocHandle() == suballoc.offset + 1);
++                    VMA_VALIDATE(alloc->GetSize() == suballoc.size);
++                }
++                sumUsedSize += suballoc.size;
++            }
++            else
++            {
++                ++nullItem2ndCount;
++            }
++
++            offset = suballoc.offset + suballoc.size + debugMargin;
++        }
++
++        VMA_VALIDATE(nullItem2ndCount == m_2ndNullItemsCount);
++    }
++
++    for (size_t i = 0; i < m_1stNullItemsBeginCount; ++i)
++    {
++        const VmaSuballocation& suballoc = suballocations1st[i];
++        VMA_VALIDATE(suballoc.type == VMA_SUBALLOCATION_TYPE_FREE &&
++            suballoc.userData == VMA_NULL);
++    }
++
++    size_t nullItem1stCount = m_1stNullItemsBeginCount;
++
++    for (size_t i = m_1stNullItemsBeginCount; i < suballoc1stCount; ++i)
++    {
++        const VmaSuballocation& suballoc = suballocations1st[i];
++        const bool currFree = (suballoc.type == VMA_SUBALLOCATION_TYPE_FREE);
++
++        VmaAllocation const alloc = (VmaAllocation)suballoc.userData;
++        if (!IsVirtual())
++        {
++            VMA_VALIDATE(currFree == (alloc == VK_NULL_HANDLE));
++        }
++        VMA_VALIDATE(suballoc.offset >= offset);
++        VMA_VALIDATE(i >= m_1stNullItemsBeginCount || currFree);
++
++        if (!currFree)
++        {
++            if (!IsVirtual())
++            {
++                VMA_VALIDATE((VkDeviceSize)alloc->GetAllocHandle() == suballoc.offset + 1);
++                VMA_VALIDATE(alloc->GetSize() == suballoc.size);
++            }
++            sumUsedSize += suballoc.size;
++        }
++        else
++        {
++            ++nullItem1stCount;
++        }
++
++        offset = suballoc.offset + suballoc.size + debugMargin;
++    }
++    VMA_VALIDATE(nullItem1stCount == m_1stNullItemsBeginCount + m_1stNullItemsMiddleCount);
++
++    if (m_2ndVectorMode == SECOND_VECTOR_DOUBLE_STACK)
++    {
++        const size_t suballoc2ndCount = suballocations2nd.size();
++        size_t nullItem2ndCount = 0;
++        for (size_t i = suballoc2ndCount; i--; )
++        {
++            const VmaSuballocation& suballoc = suballocations2nd[i];
++            const bool currFree = (suballoc.type == VMA_SUBALLOCATION_TYPE_FREE);
++
++            VmaAllocation const alloc = (VmaAllocation)suballoc.userData;
++            if (!IsVirtual())
++            {
++                VMA_VALIDATE(currFree == (alloc == VK_NULL_HANDLE));
++            }
++            VMA_VALIDATE(suballoc.offset >= offset);
++
++            if (!currFree)
++            {
++                if (!IsVirtual())
++                {
++                    VMA_VALIDATE((VkDeviceSize)alloc->GetAllocHandle() == suballoc.offset + 1);
++                    VMA_VALIDATE(alloc->GetSize() == suballoc.size);
++                }
++                sumUsedSize += suballoc.size;
++            }
++            else
++            {
++                ++nullItem2ndCount;
++            }
++
++            offset = suballoc.offset + suballoc.size + debugMargin;
++        }
++
++        VMA_VALIDATE(nullItem2ndCount == m_2ndNullItemsCount);
++    }
++
++    VMA_VALIDATE(offset <= GetSize());
++    VMA_VALIDATE(m_SumFreeSize == GetSize() - sumUsedSize);
++
++    return true;
++}
++
++size_t VmaBlockMetadata_Linear::GetAllocationCount() const
++{
++    return AccessSuballocations1st().size() - m_1stNullItemsBeginCount - m_1stNullItemsMiddleCount +
++        AccessSuballocations2nd().size() - m_2ndNullItemsCount;
++}
++
++size_t VmaBlockMetadata_Linear::GetFreeRegionsCount() const
++{
++    // Function only used for defragmentation, which is disabled for this algorithm
++    VMA_ASSERT(0);
++    return SIZE_MAX;
++}
++
++void VmaBlockMetadata_Linear::AddDetailedStatistics(VmaDetailedStatistics& inoutStats) const
++{
++    const VkDeviceSize size = GetSize();
++    const SuballocationVectorType& suballocations1st = AccessSuballocations1st();
++    const SuballocationVectorType& suballocations2nd = AccessSuballocations2nd();
++    const size_t suballoc1stCount = suballocations1st.size();
++    const size_t suballoc2ndCount = suballocations2nd.size();
++
++    inoutStats.statistics.blockCount++;
++    inoutStats.statistics.blockBytes += size;
++
++    VkDeviceSize lastOffset = 0;
++
++    if (m_2ndVectorMode == SECOND_VECTOR_RING_BUFFER)
++    {
++        const VkDeviceSize freeSpace2ndTo1stEnd = suballocations1st[m_1stNullItemsBeginCount].offset;
++        size_t nextAlloc2ndIndex = 0;
++        while (lastOffset < freeSpace2ndTo1stEnd)
++        {
++            // Find next non-null allocation or move nextAllocIndex to the end.
++            while (nextAlloc2ndIndex < suballoc2ndCount &&
++                suballocations2nd[nextAlloc2ndIndex].userData == VMA_NULL)
++            {
++                ++nextAlloc2ndIndex;
++            }
++
++            // Found non-null allocation.
++            if (nextAlloc2ndIndex < suballoc2ndCount)
++            {
++                const VmaSuballocation& suballoc = suballocations2nd[nextAlloc2ndIndex];
++
++                // 1. Process free space before this allocation.
++                if (lastOffset < suballoc.offset)
++                {
++                    // There is free space from lastOffset to suballoc.offset.
++                    const VkDeviceSize unusedRangeSize = suballoc.offset - lastOffset;
++                    VmaAddDetailedStatisticsUnusedRange(inoutStats, unusedRangeSize);
++                }
++
++                // 2. Process this allocation.
++                // There is allocation with suballoc.offset, suballoc.size.
++                VmaAddDetailedStatisticsAllocation(inoutStats, suballoc.size);
++
++                // 3. Prepare for next iteration.
++                lastOffset = suballoc.offset + suballoc.size;
++                ++nextAlloc2ndIndex;
++            }
++            // We are at the end.
++            else
++            {
++                // There is free space from lastOffset to freeSpace2ndTo1stEnd.
++                if (lastOffset < freeSpace2ndTo1stEnd)
++                {
++                    const VkDeviceSize unusedRangeSize = freeSpace2ndTo1stEnd - lastOffset;
++                    VmaAddDetailedStatisticsUnusedRange(inoutStats, unusedRangeSize);
++                }
++
++                // End of loop.
++                lastOffset = freeSpace2ndTo1stEnd;
++            }
++        }
++    }
++
++    size_t nextAlloc1stIndex = m_1stNullItemsBeginCount;
++    const VkDeviceSize freeSpace1stTo2ndEnd =
++        m_2ndVectorMode == SECOND_VECTOR_DOUBLE_STACK ? suballocations2nd.back().offset : size;
++    while (lastOffset < freeSpace1stTo2ndEnd)
++    {
++        // Find next non-null allocation or move nextAllocIndex to the end.
++        while (nextAlloc1stIndex < suballoc1stCount &&
++            suballocations1st[nextAlloc1stIndex].userData == VMA_NULL)
++        {
++            ++nextAlloc1stIndex;
++        }
++
++        // Found non-null allocation.
++        if (nextAlloc1stIndex < suballoc1stCount)
++        {
++            const VmaSuballocation& suballoc = suballocations1st[nextAlloc1stIndex];
++
++            // 1. Process free space before this allocation.
++            if (lastOffset < suballoc.offset)
++            {
++                // There is free space from lastOffset to suballoc.offset.
++                const VkDeviceSize unusedRangeSize = suballoc.offset - lastOffset;
++                VmaAddDetailedStatisticsUnusedRange(inoutStats, unusedRangeSize);
++            }
++
++            // 2. Process this allocation.
++            // There is allocation with suballoc.offset, suballoc.size.
++            VmaAddDetailedStatisticsAllocation(inoutStats, suballoc.size);
++
++            // 3. Prepare for next iteration.
++            lastOffset = suballoc.offset + suballoc.size;
++            ++nextAlloc1stIndex;
++        }
++        // We are at the end.
++        else
++        {
++            // There is free space from lastOffset to freeSpace1stTo2ndEnd.
++            if (lastOffset < freeSpace1stTo2ndEnd)
++            {
++                const VkDeviceSize unusedRangeSize = freeSpace1stTo2ndEnd - lastOffset;
++                VmaAddDetailedStatisticsUnusedRange(inoutStats, unusedRangeSize);
++            }
++
++            // End of loop.
++            lastOffset = freeSpace1stTo2ndEnd;
++        }
++    }
++
++    if (m_2ndVectorMode == SECOND_VECTOR_DOUBLE_STACK)
++    {
++        size_t nextAlloc2ndIndex = suballocations2nd.size() - 1;
++        while (lastOffset < size)
++        {
++            // Find next non-null allocation or move nextAllocIndex to the end.
++            while (nextAlloc2ndIndex != SIZE_MAX &&
++                suballocations2nd[nextAlloc2ndIndex].userData == VMA_NULL)
++            {
++                --nextAlloc2ndIndex;
++            }
++
++            // Found non-null allocation.
++            if (nextAlloc2ndIndex != SIZE_MAX)
++            {
++                const VmaSuballocation& suballoc = suballocations2nd[nextAlloc2ndIndex];
++
++                // 1. Process free space before this allocation.
++                if (lastOffset < suballoc.offset)
++                {
++                    // There is free space from lastOffset to suballoc.offset.
++                    const VkDeviceSize unusedRangeSize = suballoc.offset - lastOffset;
++                    VmaAddDetailedStatisticsUnusedRange(inoutStats, unusedRangeSize);
++                }
++
++                // 2. Process this allocation.
++                // There is allocation with suballoc.offset, suballoc.size.
++                VmaAddDetailedStatisticsAllocation(inoutStats, suballoc.size);
++
++                // 3. Prepare for next iteration.
++                lastOffset = suballoc.offset + suballoc.size;
++                --nextAlloc2ndIndex;
++            }
++            // We are at the end.
++            else
++            {
++                // There is free space from lastOffset to size.
++                if (lastOffset < size)
++                {
++                    const VkDeviceSize unusedRangeSize = size - lastOffset;
++                    VmaAddDetailedStatisticsUnusedRange(inoutStats, unusedRangeSize);
++                }
++
++                // End of loop.
++                lastOffset = size;
++            }
++        }
++    }
++}
++
++void VmaBlockMetadata_Linear::AddStatistics(VmaStatistics& inoutStats) const
++{
++    const SuballocationVectorType& suballocations1st = AccessSuballocations1st();
++    const SuballocationVectorType& suballocations2nd = AccessSuballocations2nd();
++    const VkDeviceSize size = GetSize();
++    const size_t suballoc1stCount = suballocations1st.size();
++    const size_t suballoc2ndCount = suballocations2nd.size();
++
++    inoutStats.blockCount++;
++    inoutStats.blockBytes += size;
++    inoutStats.allocationBytes += size - m_SumFreeSize;
++
++    VkDeviceSize lastOffset = 0;
++
++    if (m_2ndVectorMode == SECOND_VECTOR_RING_BUFFER)
++    {
++        const VkDeviceSize freeSpace2ndTo1stEnd = suballocations1st[m_1stNullItemsBeginCount].offset;
++        size_t nextAlloc2ndIndex = m_1stNullItemsBeginCount;
++        while (lastOffset < freeSpace2ndTo1stEnd)
++        {
++            // Find next non-null allocation or move nextAlloc2ndIndex to the end.
++            while (nextAlloc2ndIndex < suballoc2ndCount &&
++                suballocations2nd[nextAlloc2ndIndex].userData == VMA_NULL)
++            {
++                ++nextAlloc2ndIndex;
++            }
++
++            // Found non-null allocation.
++            if (nextAlloc2ndIndex < suballoc2ndCount)
++            {
++                const VmaSuballocation& suballoc = suballocations2nd[nextAlloc2ndIndex];
++
++                // 1. Process free space before this allocation.
++                if (lastOffset < suballoc.offset)
++                {
++                    // There is free space from lastOffset to suballoc.offset.
++                    const VkDeviceSize unusedRangeSize = suballoc.offset - lastOffset;
++                }
++
++                // 2. Process this allocation.
++                // There is allocation with suballoc.offset, suballoc.size.
++                ++inoutStats.allocationCount;
++
++                // 3. Prepare for next iteration.
++                lastOffset = suballoc.offset + suballoc.size;
++                ++nextAlloc2ndIndex;
++            }
++            // We are at the end.
++            else
++            {
++                if (lastOffset < freeSpace2ndTo1stEnd)
++                {
++                    // There is free space from lastOffset to freeSpace2ndTo1stEnd.
++                    const VkDeviceSize unusedRangeSize = freeSpace2ndTo1stEnd - lastOffset;
++                }
++
++                // End of loop.
++                lastOffset = freeSpace2ndTo1stEnd;
++            }
++        }
++    }
++
++    size_t nextAlloc1stIndex = m_1stNullItemsBeginCount;
++    const VkDeviceSize freeSpace1stTo2ndEnd =
++        m_2ndVectorMode == SECOND_VECTOR_DOUBLE_STACK ? suballocations2nd.back().offset : size;
++    while (lastOffset < freeSpace1stTo2ndEnd)
++    {
++        // Find next non-null allocation or move nextAllocIndex to the end.
++        while (nextAlloc1stIndex < suballoc1stCount &&
++            suballocations1st[nextAlloc1stIndex].userData == VMA_NULL)
++        {
++            ++nextAlloc1stIndex;
++        }
++
++        // Found non-null allocation.
++        if (nextAlloc1stIndex < suballoc1stCount)
++        {
++            const VmaSuballocation& suballoc = suballocations1st[nextAlloc1stIndex];
++
++            // 1. Process free space before this allocation.
++            if (lastOffset < suballoc.offset)
++            {
++                // There is free space from lastOffset to suballoc.offset.
++                const VkDeviceSize unusedRangeSize = suballoc.offset - lastOffset;
++            }
++
++            // 2. Process this allocation.
++            // There is allocation with suballoc.offset, suballoc.size.
++            ++inoutStats.allocationCount;
++
++            // 3. Prepare for next iteration.
++            lastOffset = suballoc.offset + suballoc.size;
++            ++nextAlloc1stIndex;
++        }
++        // We are at the end.
++        else
++        {
++            if (lastOffset < freeSpace1stTo2ndEnd)
++            {
++                // There is free space from lastOffset to freeSpace1stTo2ndEnd.
++                const VkDeviceSize unusedRangeSize = freeSpace1stTo2ndEnd - lastOffset;
++            }
++
++            // End of loop.
++            lastOffset = freeSpace1stTo2ndEnd;
++        }
++    }
++
++    if (m_2ndVectorMode == SECOND_VECTOR_DOUBLE_STACK)
++    {
++        size_t nextAlloc2ndIndex = suballocations2nd.size() - 1;
++        while (lastOffset < size)
++        {
++            // Find next non-null allocation or move nextAlloc2ndIndex to the end.
++            while (nextAlloc2ndIndex != SIZE_MAX &&
++                suballocations2nd[nextAlloc2ndIndex].userData == VMA_NULL)
++            {
++                --nextAlloc2ndIndex;
++            }
++
++            // Found non-null allocation.
++            if (nextAlloc2ndIndex != SIZE_MAX)
++            {
++                const VmaSuballocation& suballoc = suballocations2nd[nextAlloc2ndIndex];
++
++                // 1. Process free space before this allocation.
++                if (lastOffset < suballoc.offset)
++                {
++                    // There is free space from lastOffset to suballoc.offset.
++                    const VkDeviceSize unusedRangeSize = suballoc.offset - lastOffset;
++                }
++
++                // 2. Process this allocation.
++                // There is allocation with suballoc.offset, suballoc.size.
++                ++inoutStats.allocationCount;
++
++                // 3. Prepare for next iteration.
++                lastOffset = suballoc.offset + suballoc.size;
++                --nextAlloc2ndIndex;
++            }
++            // We are at the end.
++            else
++            {
++                if (lastOffset < size)
++                {
++                    // There is free space from lastOffset to size.
++                    const VkDeviceSize unusedRangeSize = size - lastOffset;
++                }
++
++                // End of loop.
++                lastOffset = size;
++            }
++        }
++    }
++}
++
++#if VMA_STATS_STRING_ENABLED
++void VmaBlockMetadata_Linear::PrintDetailedMap(class VmaJsonWriter& json) const
++{
++    const VkDeviceSize size = GetSize();
++    const SuballocationVectorType& suballocations1st = AccessSuballocations1st();
++    const SuballocationVectorType& suballocations2nd = AccessSuballocations2nd();
++    const size_t suballoc1stCount = suballocations1st.size();
++    const size_t suballoc2ndCount = suballocations2nd.size();
++
++    // FIRST PASS
++
++    size_t unusedRangeCount = 0;
++    VkDeviceSize usedBytes = 0;
++
++    VkDeviceSize lastOffset = 0;
++
++    size_t alloc2ndCount = 0;
++    if (m_2ndVectorMode == SECOND_VECTOR_RING_BUFFER)
++    {
++        const VkDeviceSize freeSpace2ndTo1stEnd = suballocations1st[m_1stNullItemsBeginCount].offset;
++        size_t nextAlloc2ndIndex = 0;
++        while (lastOffset < freeSpace2ndTo1stEnd)
++        {
++            // Find next non-null allocation or move nextAlloc2ndIndex to the end.
++            while (nextAlloc2ndIndex < suballoc2ndCount &&
++                suballocations2nd[nextAlloc2ndIndex].userData == VMA_NULL)
++            {
++                ++nextAlloc2ndIndex;
++            }
++
++            // Found non-null allocation.
++            if (nextAlloc2ndIndex < suballoc2ndCount)
++            {
++                const VmaSuballocation& suballoc = suballocations2nd[nextAlloc2ndIndex];
++
++                // 1. Process free space before this allocation.
++                if (lastOffset < suballoc.offset)
++                {
++                    // There is free space from lastOffset to suballoc.offset.
++                    ++unusedRangeCount;
++                }
++
++                // 2. Process this allocation.
++                // There is allocation with suballoc.offset, suballoc.size.
++                ++alloc2ndCount;
++                usedBytes += suballoc.size;
++
++                // 3. Prepare for next iteration.
++                lastOffset = suballoc.offset + suballoc.size;
++                ++nextAlloc2ndIndex;
++            }
++            // We are at the end.
++            else
++            {
++                if (lastOffset < freeSpace2ndTo1stEnd)
++                {
++                    // There is free space from lastOffset to freeSpace2ndTo1stEnd.
++                    ++unusedRangeCount;
++                }
++
++                // End of loop.
++                lastOffset = freeSpace2ndTo1stEnd;
++            }
++        }
++    }
++
++    size_t nextAlloc1stIndex = m_1stNullItemsBeginCount;
++    size_t alloc1stCount = 0;
++    const VkDeviceSize freeSpace1stTo2ndEnd =
++        m_2ndVectorMode == SECOND_VECTOR_DOUBLE_STACK ? suballocations2nd.back().offset : size;
++    while (lastOffset < freeSpace1stTo2ndEnd)
++    {
++        // Find next non-null allocation or move nextAllocIndex to the end.
++        while (nextAlloc1stIndex < suballoc1stCount &&
++            suballocations1st[nextAlloc1stIndex].userData == VMA_NULL)
++        {
++            ++nextAlloc1stIndex;
++        }
++
++        // Found non-null allocation.
++        if (nextAlloc1stIndex < suballoc1stCount)
++        {
++            const VmaSuballocation& suballoc = suballocations1st[nextAlloc1stIndex];
++
++            // 1. Process free space before this allocation.
++            if (lastOffset < suballoc.offset)
++            {
++                // There is free space from lastOffset to suballoc.offset.
++                ++unusedRangeCount;
++            }
++
++            // 2. Process this allocation.
++            // There is allocation with suballoc.offset, suballoc.size.
++            ++alloc1stCount;
++            usedBytes += suballoc.size;
++
++            // 3. Prepare for next iteration.
++            lastOffset = suballoc.offset + suballoc.size;
++            ++nextAlloc1stIndex;
++        }
++        // We are at the end.
++        else
++        {
++            if (lastOffset < size)
++            {
++                // There is free space from lastOffset to freeSpace1stTo2ndEnd.
++                ++unusedRangeCount;
++            }
++
++            // End of loop.
++            lastOffset = freeSpace1stTo2ndEnd;
++        }
++    }
++
++    if (m_2ndVectorMode == SECOND_VECTOR_DOUBLE_STACK)
++    {
++        size_t nextAlloc2ndIndex = suballocations2nd.size() - 1;
++        while (lastOffset < size)
++        {
++            // Find next non-null allocation or move nextAlloc2ndIndex to the end.
++            while (nextAlloc2ndIndex != SIZE_MAX &&
++                suballocations2nd[nextAlloc2ndIndex].userData == VMA_NULL)
++            {
++                --nextAlloc2ndIndex;
++            }
++
++            // Found non-null allocation.
++            if (nextAlloc2ndIndex != SIZE_MAX)
++            {
++                const VmaSuballocation& suballoc = suballocations2nd[nextAlloc2ndIndex];
++
++                // 1. Process free space before this allocation.
++                if (lastOffset < suballoc.offset)
++                {
++                    // There is free space from lastOffset to suballoc.offset.
++                    ++unusedRangeCount;
++                }
++
++                // 2. Process this allocation.
++                // There is allocation with suballoc.offset, suballoc.size.
++                ++alloc2ndCount;
++                usedBytes += suballoc.size;
++
++                // 3. Prepare for next iteration.
++                lastOffset = suballoc.offset + suballoc.size;
++                --nextAlloc2ndIndex;
++            }
++            // We are at the end.
++            else
++            {
++                if (lastOffset < size)
++                {
++                    // There is free space from lastOffset to size.
++                    ++unusedRangeCount;
++                }
++
++                // End of loop.
++                lastOffset = size;
++            }
++        }
++    }
++
++    const VkDeviceSize unusedBytes = size - usedBytes;
++    PrintDetailedMap_Begin(json, unusedBytes, alloc1stCount + alloc2ndCount, unusedRangeCount);
++
++    // SECOND PASS
++    lastOffset = 0;
++
++    if (m_2ndVectorMode == SECOND_VECTOR_RING_BUFFER)
++    {
++        const VkDeviceSize freeSpace2ndTo1stEnd = suballocations1st[m_1stNullItemsBeginCount].offset;
++        size_t nextAlloc2ndIndex = 0;
++        while (lastOffset < freeSpace2ndTo1stEnd)
++        {
++            // Find next non-null allocation or move nextAlloc2ndIndex to the end.
++            while (nextAlloc2ndIndex < suballoc2ndCount &&
++                suballocations2nd[nextAlloc2ndIndex].userData == VMA_NULL)
++            {
++                ++nextAlloc2ndIndex;
++            }
++
++            // Found non-null allocation.
++            if (nextAlloc2ndIndex < suballoc2ndCount)
++            {
++                const VmaSuballocation& suballoc = suballocations2nd[nextAlloc2ndIndex];
++
++                // 1. Process free space before this allocation.
++                if (lastOffset < suballoc.offset)
++                {
++                    // There is free space from lastOffset to suballoc.offset.
++                    const VkDeviceSize unusedRangeSize = suballoc.offset - lastOffset;
++                    PrintDetailedMap_UnusedRange(json, lastOffset, unusedRangeSize);
++                }
++
++                // 2. Process this allocation.
++                // There is allocation with suballoc.offset, suballoc.size.
++                PrintDetailedMap_Allocation(json, suballoc.offset, suballoc.size, suballoc.userData);
++
++                // 3. Prepare for next iteration.
++                lastOffset = suballoc.offset + suballoc.size;
++                ++nextAlloc2ndIndex;
++            }
++            // We are at the end.
++            else
++            {
++                if (lastOffset < freeSpace2ndTo1stEnd)
++                {
++                    // There is free space from lastOffset to freeSpace2ndTo1stEnd.
++                    const VkDeviceSize unusedRangeSize = freeSpace2ndTo1stEnd - lastOffset;
++                    PrintDetailedMap_UnusedRange(json, lastOffset, unusedRangeSize);
++                }
++
++                // End of loop.
++                lastOffset = freeSpace2ndTo1stEnd;
++            }
++        }
++    }
++
++    nextAlloc1stIndex = m_1stNullItemsBeginCount;
++    while (lastOffset < freeSpace1stTo2ndEnd)
++    {
++        // Find next non-null allocation or move nextAllocIndex to the end.
++        while (nextAlloc1stIndex < suballoc1stCount &&
++            suballocations1st[nextAlloc1stIndex].userData == VMA_NULL)
++        {
++            ++nextAlloc1stIndex;
++        }
++
++        // Found non-null allocation.
++        if (nextAlloc1stIndex < suballoc1stCount)
++        {
++            const VmaSuballocation& suballoc = suballocations1st[nextAlloc1stIndex];
++
++            // 1. Process free space before this allocation.
++            if (lastOffset < suballoc.offset)
++            {
++                // There is free space from lastOffset to suballoc.offset.
++                const VkDeviceSize unusedRangeSize = suballoc.offset - lastOffset;
++                PrintDetailedMap_UnusedRange(json, lastOffset, unusedRangeSize);
++            }
++
++            // 2. Process this allocation.
++            // There is allocation with suballoc.offset, suballoc.size.
++            PrintDetailedMap_Allocation(json, suballoc.offset, suballoc.size, suballoc.userData);
++
++            // 3. Prepare for next iteration.
++            lastOffset = suballoc.offset + suballoc.size;
++            ++nextAlloc1stIndex;
++        }
++        // We are at the end.
++        else
++        {
++            if (lastOffset < freeSpace1stTo2ndEnd)
++            {
++                // There is free space from lastOffset to freeSpace1stTo2ndEnd.
++                const VkDeviceSize unusedRangeSize = freeSpace1stTo2ndEnd - lastOffset;
++                PrintDetailedMap_UnusedRange(json, lastOffset, unusedRangeSize);
++            }
++
++            // End of loop.
++            lastOffset = freeSpace1stTo2ndEnd;
++        }
++    }
++
++    if (m_2ndVectorMode == SECOND_VECTOR_DOUBLE_STACK)
++    {
++        size_t nextAlloc2ndIndex = suballocations2nd.size() - 1;
++        while (lastOffset < size)
++        {
++            // Find next non-null allocation or move nextAlloc2ndIndex to the end.
++            while (nextAlloc2ndIndex != SIZE_MAX &&
++                suballocations2nd[nextAlloc2ndIndex].userData == VMA_NULL)
++            {
++                --nextAlloc2ndIndex;
++            }
++
++            // Found non-null allocation.
++            if (nextAlloc2ndIndex != SIZE_MAX)
++            {
++                const VmaSuballocation& suballoc = suballocations2nd[nextAlloc2ndIndex];
++
++                // 1. Process free space before this allocation.
++                if (lastOffset < suballoc.offset)
++                {
++                    // There is free space from lastOffset to suballoc.offset.
++                    const VkDeviceSize unusedRangeSize = suballoc.offset - lastOffset;
++                    PrintDetailedMap_UnusedRange(json, lastOffset, unusedRangeSize);
++                }
++
++                // 2. Process this allocation.
++                // There is allocation with suballoc.offset, suballoc.size.
++                PrintDetailedMap_Allocation(json, suballoc.offset, suballoc.size, suballoc.userData);
++
++                // 3. Prepare for next iteration.
++                lastOffset = suballoc.offset + suballoc.size;
++                --nextAlloc2ndIndex;
++            }
++            // We are at the end.
++            else
++            {
++                if (lastOffset < size)
++                {
++                    // There is free space from lastOffset to size.
++                    const VkDeviceSize unusedRangeSize = size - lastOffset;
++                    PrintDetailedMap_UnusedRange(json, lastOffset, unusedRangeSize);
++                }
++
++                // End of loop.
++                lastOffset = size;
++            }
++        }
++    }
++
++    PrintDetailedMap_End(json);
++}
++#endif // VMA_STATS_STRING_ENABLED
++
++bool VmaBlockMetadata_Linear::CreateAllocationRequest(
++    VkDeviceSize allocSize,
++    VkDeviceSize allocAlignment,
++    bool upperAddress,
++    VmaSuballocationType allocType,
++    uint32_t strategy,
++    VmaAllocationRequest* pAllocationRequest)
++{
++    VMA_ASSERT(allocSize > 0);
++    VMA_ASSERT(allocType != VMA_SUBALLOCATION_TYPE_FREE);
++    VMA_ASSERT(pAllocationRequest != VMA_NULL);
++    VMA_HEAVY_ASSERT(Validate());
++    pAllocationRequest->size = allocSize;
++    return upperAddress ?
++        CreateAllocationRequest_UpperAddress(
++            allocSize, allocAlignment, allocType, strategy, pAllocationRequest) :
++        CreateAllocationRequest_LowerAddress(
++            allocSize, allocAlignment, allocType, strategy, pAllocationRequest);
++}
++
++VkResult VmaBlockMetadata_Linear::CheckCorruption(const void* pBlockData)
++{
++    VMA_ASSERT(!IsVirtual());
++    SuballocationVectorType& suballocations1st = AccessSuballocations1st();
++    for (size_t i = m_1stNullItemsBeginCount, count = suballocations1st.size(); i < count; ++i)
++    {
++        const VmaSuballocation& suballoc = suballocations1st[i];
++        if (suballoc.type != VMA_SUBALLOCATION_TYPE_FREE)
++        {
++            if (!VmaValidateMagicValue(pBlockData, suballoc.offset + suballoc.size))
++            {
++                VMA_ASSERT(0 && "MEMORY CORRUPTION DETECTED AFTER VALIDATED ALLOCATION!");
++                return VK_ERROR_UNKNOWN_COPY;
++            }
++        }
++    }
++
++    SuballocationVectorType& suballocations2nd = AccessSuballocations2nd();
++    for (size_t i = 0, count = suballocations2nd.size(); i < count; ++i)
++    {
++        const VmaSuballocation& suballoc = suballocations2nd[i];
++        if (suballoc.type != VMA_SUBALLOCATION_TYPE_FREE)
++        {
++            if (!VmaValidateMagicValue(pBlockData, suballoc.offset + suballoc.size))
++            {
++                VMA_ASSERT(0 && "MEMORY CORRUPTION DETECTED AFTER VALIDATED ALLOCATION!");
++                return VK_ERROR_UNKNOWN_COPY;
++            }
++        }
++    }
++
++    return VK_SUCCESS;
++}
++
++void VmaBlockMetadata_Linear::Alloc(
++    const VmaAllocationRequest& request,
++    VmaSuballocationType type,
++    void* userData)
++{
++    const VkDeviceSize offset = (VkDeviceSize)request.allocHandle - 1;
++    const VmaSuballocation newSuballoc = { offset, request.size, userData, type };
++
++    switch (request.type)
++    {
++    case VmaAllocationRequestType::UpperAddress:
++    {
++        VMA_ASSERT(m_2ndVectorMode != SECOND_VECTOR_RING_BUFFER &&
++            "CRITICAL ERROR: Trying to use linear allocator as double stack while it was already used as ring buffer.");
++        SuballocationVectorType& suballocations2nd = AccessSuballocations2nd();
++        suballocations2nd.push_back(newSuballoc);
++        m_2ndVectorMode = SECOND_VECTOR_DOUBLE_STACK;
++    }
++    break;
++    case VmaAllocationRequestType::EndOf1st:
++    {
++        SuballocationVectorType& suballocations1st = AccessSuballocations1st();
++
++        VMA_ASSERT(suballocations1st.empty() ||
++            offset >= suballocations1st.back().offset + suballocations1st.back().size);
++        // Check if it fits before the end of the block.
++        VMA_ASSERT(offset + request.size <= GetSize());
++
++        suballocations1st.push_back(newSuballoc);
++    }
++    break;
++    case VmaAllocationRequestType::EndOf2nd:
++    {
++        SuballocationVectorType& suballocations1st = AccessSuballocations1st();
++        // New allocation at the end of 2-part ring buffer, so before first allocation from 1st vector.
++        VMA_ASSERT(!suballocations1st.empty() &&
++            offset + request.size <= suballocations1st[m_1stNullItemsBeginCount].offset);
++        SuballocationVectorType& suballocations2nd = AccessSuballocations2nd();
++
++        switch (m_2ndVectorMode)
++        {
++        case SECOND_VECTOR_EMPTY:
++            // First allocation from second part ring buffer.
++            VMA_ASSERT(suballocations2nd.empty());
++            m_2ndVectorMode = SECOND_VECTOR_RING_BUFFER;
++            break;
++        case SECOND_VECTOR_RING_BUFFER:
++            // 2-part ring buffer is already started.
++            VMA_ASSERT(!suballocations2nd.empty());
++            break;
++        case SECOND_VECTOR_DOUBLE_STACK:
++            VMA_ASSERT(0 && "CRITICAL ERROR: Trying to use linear allocator as ring buffer while it was already used as double stack.");
++            break;
++        default:
++            VMA_ASSERT(0);
++        }
++
++        suballocations2nd.push_back(newSuballoc);
++    }
++    break;
++    default:
++        VMA_ASSERT(0 && "CRITICAL INTERNAL ERROR.");
++    }
++
++    m_SumFreeSize -= newSuballoc.size;
++}
++
++void VmaBlockMetadata_Linear::Free(VmaAllocHandle allocHandle)
++{
++    SuballocationVectorType& suballocations1st = AccessSuballocations1st();
++    SuballocationVectorType& suballocations2nd = AccessSuballocations2nd();
++    VkDeviceSize offset = (VkDeviceSize)allocHandle - 1;
++
++    if (!suballocations1st.empty())
++    {
++        // First allocation: Mark it as next empty at the beginning.
++        VmaSuballocation& firstSuballoc = suballocations1st[m_1stNullItemsBeginCount];
++        if (firstSuballoc.offset == offset)
++        {
++            firstSuballoc.type = VMA_SUBALLOCATION_TYPE_FREE;
++            firstSuballoc.userData = VMA_NULL;
++            m_SumFreeSize += firstSuballoc.size;
++            ++m_1stNullItemsBeginCount;
++            CleanupAfterFree();
++            return;
++        }
++    }
++
++    // Last allocation in 2-part ring buffer or top of upper stack (same logic).
++    if (m_2ndVectorMode == SECOND_VECTOR_RING_BUFFER ||
++        m_2ndVectorMode == SECOND_VECTOR_DOUBLE_STACK)
++    {
++        VmaSuballocation& lastSuballoc = suballocations2nd.back();
++        if (lastSuballoc.offset == offset)
++        {
++            m_SumFreeSize += lastSuballoc.size;
++            suballocations2nd.pop_back();
++            CleanupAfterFree();
++            return;
++        }
++    }
++    // Last allocation in 1st vector.
++    else if (m_2ndVectorMode == SECOND_VECTOR_EMPTY)
++    {
++        VmaSuballocation& lastSuballoc = suballocations1st.back();
++        if (lastSuballoc.offset == offset)
++        {
++            m_SumFreeSize += lastSuballoc.size;
++            suballocations1st.pop_back();
++            CleanupAfterFree();
++            return;
++        }
++    }
++
++    VmaSuballocation refSuballoc;
++    refSuballoc.offset = offset;
++    // Rest of members stays uninitialized intentionally for better performance.
++
++    // Item from the middle of 1st vector.
++    {
++        const SuballocationVectorType::iterator it = VmaBinaryFindSorted(
++            suballocations1st.begin() + m_1stNullItemsBeginCount,
++            suballocations1st.end(),
++            refSuballoc,
++            VmaSuballocationOffsetLess());
++        if (it != suballocations1st.end())
++        {
++            it->type = VMA_SUBALLOCATION_TYPE_FREE;
++            it->userData = VMA_NULL;
++            ++m_1stNullItemsMiddleCount;
++            m_SumFreeSize += it->size;
++            CleanupAfterFree();
++            return;
++        }
++    }
++
++    if (m_2ndVectorMode != SECOND_VECTOR_EMPTY)
++    {
++        // Item from the middle of 2nd vector.
++        const SuballocationVectorType::iterator it = m_2ndVectorMode == SECOND_VECTOR_RING_BUFFER ?
++            VmaBinaryFindSorted(suballocations2nd.begin(), suballocations2nd.end(), refSuballoc, VmaSuballocationOffsetLess()) :
++            VmaBinaryFindSorted(suballocations2nd.begin(), suballocations2nd.end(), refSuballoc, VmaSuballocationOffsetGreater());
++        if (it != suballocations2nd.end())
++        {
++            it->type = VMA_SUBALLOCATION_TYPE_FREE;
++            it->userData = VMA_NULL;
++            ++m_2ndNullItemsCount;
++            m_SumFreeSize += it->size;
++            CleanupAfterFree();
++            return;
++        }
++    }
++
++    VMA_ASSERT(0 && "Allocation to free not found in linear allocator!");
++}
++
++void VmaBlockMetadata_Linear::GetAllocationInfo(VmaAllocHandle allocHandle, VmaVirtualAllocationInfo& outInfo)
++{
++    outInfo.offset = (VkDeviceSize)allocHandle - 1;
++    VmaSuballocation& suballoc = FindSuballocation(outInfo.offset);
++    outInfo.size = suballoc.size;
++    outInfo.pUserData = suballoc.userData;
++}
++
++void* VmaBlockMetadata_Linear::GetAllocationUserData(VmaAllocHandle allocHandle) const
++{
++    return FindSuballocation((VkDeviceSize)allocHandle - 1).userData;
++}
++
++VmaAllocHandle VmaBlockMetadata_Linear::GetAllocationListBegin() const
++{
++    // Function only used for defragmentation, which is disabled for this algorithm
++    VMA_ASSERT(0);
++    return VK_NULL_HANDLE;
++}
++
++VmaAllocHandle VmaBlockMetadata_Linear::GetNextAllocation(VmaAllocHandle prevAlloc) const
++{
++    // Function only used for defragmentation, which is disabled for this algorithm
++    VMA_ASSERT(0);
++    return VK_NULL_HANDLE;
++}
++
++VkDeviceSize VmaBlockMetadata_Linear::GetNextFreeRegionSize(VmaAllocHandle alloc) const
++{
++    // Function only used for defragmentation, which is disabled for this algorithm
++    VMA_ASSERT(0);
++    return 0;
++}
++
++void VmaBlockMetadata_Linear::Clear()
++{
++    m_SumFreeSize = GetSize();
++    m_Suballocations0.clear();
++    m_Suballocations1.clear();
++    // Leaving m_1stVectorIndex unchanged - it doesn't matter.
++    m_2ndVectorMode = SECOND_VECTOR_EMPTY;
++    m_1stNullItemsBeginCount = 0;
++    m_1stNullItemsMiddleCount = 0;
++    m_2ndNullItemsCount = 0;
++}
++
++void VmaBlockMetadata_Linear::SetAllocationUserData(VmaAllocHandle allocHandle, void* userData)
++{
++    VmaSuballocation& suballoc = FindSuballocation((VkDeviceSize)allocHandle - 1);
++    suballoc.userData = userData;
++}
++
++void VmaBlockMetadata_Linear::DebugLogAllAllocations() const
++{
++    const SuballocationVectorType& suballocations1st = AccessSuballocations1st();
++    for (auto it = suballocations1st.begin() + m_1stNullItemsBeginCount; it != suballocations1st.end(); ++it)
++        if (it->type != VMA_SUBALLOCATION_TYPE_FREE)
++            DebugLogAllocation(it->offset, it->size, it->userData);
++
++    const SuballocationVectorType& suballocations2nd = AccessSuballocations2nd();
++    for (auto it = suballocations2nd.begin(); it != suballocations2nd.end(); ++it)
++        if (it->type != VMA_SUBALLOCATION_TYPE_FREE)
++            DebugLogAllocation(it->offset, it->size, it->userData);
++}
++
++VmaSuballocation& VmaBlockMetadata_Linear::FindSuballocation(VkDeviceSize offset) const
++{
++    const SuballocationVectorType& suballocations1st = AccessSuballocations1st();
++    const SuballocationVectorType& suballocations2nd = AccessSuballocations2nd();
++
++    VmaSuballocation refSuballoc;
++    refSuballoc.offset = offset;
++    // Rest of members stays uninitialized intentionally for better performance.
++
++    // Item from the 1st vector.
++    {
++        SuballocationVectorType::const_iterator it = VmaBinaryFindSorted(
++            suballocations1st.begin() + m_1stNullItemsBeginCount,
++            suballocations1st.end(),
++            refSuballoc,
++            VmaSuballocationOffsetLess());
++        if (it != suballocations1st.end())
++        {
++            return const_cast<VmaSuballocation&>(*it);
++        }
++    }
++
++    if (m_2ndVectorMode != SECOND_VECTOR_EMPTY)
++    {
++        // Rest of members stays uninitialized intentionally for better performance.
++        SuballocationVectorType::const_iterator it = m_2ndVectorMode == SECOND_VECTOR_RING_BUFFER ?
++            VmaBinaryFindSorted(suballocations2nd.begin(), suballocations2nd.end(), refSuballoc, VmaSuballocationOffsetLess()) :
++            VmaBinaryFindSorted(suballocations2nd.begin(), suballocations2nd.end(), refSuballoc, VmaSuballocationOffsetGreater());
++        if (it != suballocations2nd.end())
++        {
++            return const_cast<VmaSuballocation&>(*it);
++        }
++    }
++
++    VMA_ASSERT(0 && "Allocation not found in linear allocator!");
++    return const_cast<VmaSuballocation&>(suballocations1st.back()); // Should never occur.
++}
++
++bool VmaBlockMetadata_Linear::ShouldCompact1st() const
++{
++    const size_t nullItemCount = m_1stNullItemsBeginCount + m_1stNullItemsMiddleCount;
++    const size_t suballocCount = AccessSuballocations1st().size();
++    return suballocCount > 32 && nullItemCount * 2 >= (suballocCount - nullItemCount) * 3;
++}
++
++void VmaBlockMetadata_Linear::CleanupAfterFree()
++{
++    SuballocationVectorType& suballocations1st = AccessSuballocations1st();
++    SuballocationVectorType& suballocations2nd = AccessSuballocations2nd();
++
++    if (IsEmpty())
++    {
++        suballocations1st.clear();
++        suballocations2nd.clear();
++        m_1stNullItemsBeginCount = 0;
++        m_1stNullItemsMiddleCount = 0;
++        m_2ndNullItemsCount = 0;
++        m_2ndVectorMode = SECOND_VECTOR_EMPTY;
++    }
++    else
++    {
++        const size_t suballoc1stCount = suballocations1st.size();
++        const size_t nullItem1stCount = m_1stNullItemsBeginCount + m_1stNullItemsMiddleCount;
++        VMA_ASSERT(nullItem1stCount <= suballoc1stCount);
++
++        // Find more null items at the beginning of 1st vector.
++        while (m_1stNullItemsBeginCount < suballoc1stCount &&
++            suballocations1st[m_1stNullItemsBeginCount].type == VMA_SUBALLOCATION_TYPE_FREE)
++        {
++            ++m_1stNullItemsBeginCount;
++            --m_1stNullItemsMiddleCount;
++        }
++
++        // Find more null items at the end of 1st vector.
++        while (m_1stNullItemsMiddleCount > 0 &&
++            suballocations1st.back().type == VMA_SUBALLOCATION_TYPE_FREE)
++        {
++            --m_1stNullItemsMiddleCount;
++            suballocations1st.pop_back();
++        }
++
++        // Find more null items at the end of 2nd vector.
++        while (m_2ndNullItemsCount > 0 &&
++            suballocations2nd.back().type == VMA_SUBALLOCATION_TYPE_FREE)
++        {
++            --m_2ndNullItemsCount;
++            suballocations2nd.pop_back();
++        }
++
++        // Find more null items at the beginning of 2nd vector.
++        while (m_2ndNullItemsCount > 0 &&
++            suballocations2nd[0].type == VMA_SUBALLOCATION_TYPE_FREE)
++        {
++            --m_2ndNullItemsCount;
++            VmaVectorRemove(suballocations2nd, 0);
++        }
++
++        if (ShouldCompact1st())
++        {
++            const size_t nonNullItemCount = suballoc1stCount - nullItem1stCount;
++            size_t srcIndex = m_1stNullItemsBeginCount;
++            for (size_t dstIndex = 0; dstIndex < nonNullItemCount; ++dstIndex)
++            {
++                while (suballocations1st[srcIndex].type == VMA_SUBALLOCATION_TYPE_FREE)
++                {
++                    ++srcIndex;
++                }
++                if (dstIndex != srcIndex)
++                {
++                    suballocations1st[dstIndex] = suballocations1st[srcIndex];
++                }
++                ++srcIndex;
++            }
++            suballocations1st.resize(nonNullItemCount);
++            m_1stNullItemsBeginCount = 0;
++            m_1stNullItemsMiddleCount = 0;
++        }
++
++        // 2nd vector became empty.
++        if (suballocations2nd.empty())
++        {
++            m_2ndVectorMode = SECOND_VECTOR_EMPTY;
++        }
++
++        // 1st vector became empty.
++        if (suballocations1st.size() - m_1stNullItemsBeginCount == 0)
++        {
++            suballocations1st.clear();
++            m_1stNullItemsBeginCount = 0;
++
++            if (!suballocations2nd.empty() && m_2ndVectorMode == SECOND_VECTOR_RING_BUFFER)
++            {
++                // Swap 1st with 2nd. Now 2nd is empty.
++                m_2ndVectorMode = SECOND_VECTOR_EMPTY;
++                m_1stNullItemsMiddleCount = m_2ndNullItemsCount;
++                while (m_1stNullItemsBeginCount < suballocations2nd.size() &&
++                    suballocations2nd[m_1stNullItemsBeginCount].type == VMA_SUBALLOCATION_TYPE_FREE)
++                {
++                    ++m_1stNullItemsBeginCount;
++                    --m_1stNullItemsMiddleCount;
++                }
++                m_2ndNullItemsCount = 0;
++                m_1stVectorIndex ^= 1;
++            }
++        }
++    }
++
++    VMA_HEAVY_ASSERT(Validate());
++}
++
++bool VmaBlockMetadata_Linear::CreateAllocationRequest_LowerAddress(
++    VkDeviceSize allocSize,
++    VkDeviceSize allocAlignment,
++    VmaSuballocationType allocType,
++    uint32_t strategy,
++    VmaAllocationRequest* pAllocationRequest)
++{
++    const VkDeviceSize blockSize = GetSize();
++    const VkDeviceSize debugMargin = GetDebugMargin();
++    const VkDeviceSize bufferImageGranularity = GetBufferImageGranularity();
++    SuballocationVectorType& suballocations1st = AccessSuballocations1st();
++    SuballocationVectorType& suballocations2nd = AccessSuballocations2nd();
++
++    if (m_2ndVectorMode == SECOND_VECTOR_EMPTY || m_2ndVectorMode == SECOND_VECTOR_DOUBLE_STACK)
++    {
++        // Try to allocate at the end of 1st vector.
++
++        VkDeviceSize resultBaseOffset = 0;
++        if (!suballocations1st.empty())
++        {
++            const VmaSuballocation& lastSuballoc = suballocations1st.back();
++            resultBaseOffset = lastSuballoc.offset + lastSuballoc.size + debugMargin;
++        }
++
++        // Start from offset equal to beginning of free space.
++        VkDeviceSize resultOffset = resultBaseOffset;
++
++        // Apply alignment.
++        resultOffset = VmaAlignUp(resultOffset, allocAlignment);
++
++        // Check previous suballocations for BufferImageGranularity conflicts.
++        // Make bigger alignment if necessary.
++        if (bufferImageGranularity > 1 && bufferImageGranularity != allocAlignment && !suballocations1st.empty())
++        {
++            bool bufferImageGranularityConflict = false;
++            for (size_t prevSuballocIndex = suballocations1st.size(); prevSuballocIndex--; )
++            {
++                const VmaSuballocation& prevSuballoc = suballocations1st[prevSuballocIndex];
++                if (VmaBlocksOnSamePage(prevSuballoc.offset, prevSuballoc.size, resultOffset, bufferImageGranularity))
++                {
++                    if (VmaIsBufferImageGranularityConflict(prevSuballoc.type, allocType))
++                    {
++                        bufferImageGranularityConflict = true;
++                        break;
++                    }
++                }
++                else
++                    // Already on previous page.
++                    break;
++            }
++            if (bufferImageGranularityConflict)
++            {
++                resultOffset = VmaAlignUp(resultOffset, bufferImageGranularity);
++            }
++        }
++
++        const VkDeviceSize freeSpaceEnd = m_2ndVectorMode == SECOND_VECTOR_DOUBLE_STACK ?
++            suballocations2nd.back().offset : blockSize;
++
++        // There is enough free space at the end after alignment.
++        if (resultOffset + allocSize + debugMargin <= freeSpaceEnd)
++        {
++            // Check next suballocations for BufferImageGranularity conflicts.
++            // If conflict exists, allocation cannot be made here.
++            if ((allocSize % bufferImageGranularity || resultOffset % bufferImageGranularity) && m_2ndVectorMode == SECOND_VECTOR_DOUBLE_STACK)
++            {
++                for (size_t nextSuballocIndex = suballocations2nd.size(); nextSuballocIndex--; )
++                {
++                    const VmaSuballocation& nextSuballoc = suballocations2nd[nextSuballocIndex];
++                    if (VmaBlocksOnSamePage(resultOffset, allocSize, nextSuballoc.offset, bufferImageGranularity))
++                    {
++                        if (VmaIsBufferImageGranularityConflict(allocType, nextSuballoc.type))
++                        {
++                            return false;
++                        }
++                    }
++                    else
++                    {
++                        // Already on previous page.
++                        break;
++                    }
++                }
++            }
++
++            // All tests passed: Success.
++            pAllocationRequest->allocHandle = (VmaAllocHandle)(resultOffset + 1);
++            // pAllocationRequest->item, customData unused.
++            pAllocationRequest->type = VmaAllocationRequestType::EndOf1st;
++            return true;
++        }
++    }
++
++    // Wrap-around to end of 2nd vector. Try to allocate there, watching for the
++    // beginning of 1st vector as the end of free space.
++    if (m_2ndVectorMode == SECOND_VECTOR_EMPTY || m_2ndVectorMode == SECOND_VECTOR_RING_BUFFER)
++    {
++        VMA_ASSERT(!suballocations1st.empty());
++
++        VkDeviceSize resultBaseOffset = 0;
++        if (!suballocations2nd.empty())
++        {
++            const VmaSuballocation& lastSuballoc = suballocations2nd.back();
++            resultBaseOffset = lastSuballoc.offset + lastSuballoc.size + debugMargin;
++        }
++
++        // Start from offset equal to beginning of free space.
++        VkDeviceSize resultOffset = resultBaseOffset;
++
++        // Apply alignment.
++        resultOffset = VmaAlignUp(resultOffset, allocAlignment);
++
++        // Check previous suballocations for BufferImageGranularity conflicts.
++        // Make bigger alignment if necessary.
++        if (bufferImageGranularity > 1 && bufferImageGranularity != allocAlignment && !suballocations2nd.empty())
++        {
++            bool bufferImageGranularityConflict = false;
++            for (size_t prevSuballocIndex = suballocations2nd.size(); prevSuballocIndex--; )
++            {
++                const VmaSuballocation& prevSuballoc = suballocations2nd[prevSuballocIndex];
++                if (VmaBlocksOnSamePage(prevSuballoc.offset, prevSuballoc.size, resultOffset, bufferImageGranularity))
++                {
++                    if (VmaIsBufferImageGranularityConflict(prevSuballoc.type, allocType))
++                    {
++                        bufferImageGranularityConflict = true;
++                        break;
++                    }
++                }
++                else
++                    // Already on previous page.
++                    break;
++            }
++            if (bufferImageGranularityConflict)
++            {
++                resultOffset = VmaAlignUp(resultOffset, bufferImageGranularity);
++            }
++        }
++
++        size_t index1st = m_1stNullItemsBeginCount;
++
++        // There is enough free space at the end after alignment.
++        if ((index1st == suballocations1st.size() && resultOffset + allocSize + debugMargin <= blockSize) ||
++            (index1st < suballocations1st.size() && resultOffset + allocSize + debugMargin <= suballocations1st[index1st].offset))
++        {
++            // Check next suballocations for BufferImageGranularity conflicts.
++            // If conflict exists, allocation cannot be made here.
++            if (allocSize % bufferImageGranularity || resultOffset % bufferImageGranularity)
++            {
++                for (size_t nextSuballocIndex = index1st;
++                    nextSuballocIndex < suballocations1st.size();
++                    nextSuballocIndex++)
++                {
++                    const VmaSuballocation& nextSuballoc = suballocations1st[nextSuballocIndex];
++                    if (VmaBlocksOnSamePage(resultOffset, allocSize, nextSuballoc.offset, bufferImageGranularity))
++                    {
++                        if (VmaIsBufferImageGranularityConflict(allocType, nextSuballoc.type))
++                        {
++                            return false;
++                        }
++                    }
++                    else
++                    {
++                        // Already on next page.
++                        break;
++                    }
++                }
++            }
++
++            // All tests passed: Success.
++            pAllocationRequest->allocHandle = (VmaAllocHandle)(resultOffset + 1);
++            pAllocationRequest->type = VmaAllocationRequestType::EndOf2nd;
++            // pAllocationRequest->item, customData unused.
++            return true;
++        }
++    }
++
++    return false;
++}
++
++bool VmaBlockMetadata_Linear::CreateAllocationRequest_UpperAddress(
++    VkDeviceSize allocSize,
++    VkDeviceSize allocAlignment,
++    VmaSuballocationType allocType,
++    uint32_t strategy,
++    VmaAllocationRequest* pAllocationRequest)
++{
++    const VkDeviceSize blockSize = GetSize();
++    const VkDeviceSize bufferImageGranularity = GetBufferImageGranularity();
++    SuballocationVectorType& suballocations1st = AccessSuballocations1st();
++    SuballocationVectorType& suballocations2nd = AccessSuballocations2nd();
++
++    if (m_2ndVectorMode == SECOND_VECTOR_RING_BUFFER)
++    {
++        VMA_ASSERT(0 && "Trying to use pool with linear algorithm as double stack, while it is already being used as ring buffer.");
++        return false;
++    }
++
++    // Try to allocate before 2nd.back(), or end of block if 2nd.empty().
++    if (allocSize > blockSize)
++    {
++        return false;
++    }
++    VkDeviceSize resultBaseOffset = blockSize - allocSize;
++    if (!suballocations2nd.empty())
++    {
++        const VmaSuballocation& lastSuballoc = suballocations2nd.back();
++        resultBaseOffset = lastSuballoc.offset - allocSize;
++        if (allocSize > lastSuballoc.offset)
++        {
++            return false;
++        }
++    }
++
++    // Start from offset equal to end of free space.
++    VkDeviceSize resultOffset = resultBaseOffset;
++
++    const VkDeviceSize debugMargin = GetDebugMargin();
++
++    // Apply debugMargin at the end.
++    if (debugMargin > 0)
++    {
++        if (resultOffset < debugMargin)
++        {
++            return false;
++        }
++        resultOffset -= debugMargin;
++    }
++
++    // Apply alignment.
++    resultOffset = VmaAlignDown(resultOffset, allocAlignment);
++
++    // Check next suballocations from 2nd for BufferImageGranularity conflicts.
++    // Make bigger alignment if necessary.
++    if (bufferImageGranularity > 1 && bufferImageGranularity != allocAlignment && !suballocations2nd.empty())
++    {
++        bool bufferImageGranularityConflict = false;
++        for (size_t nextSuballocIndex = suballocations2nd.size(); nextSuballocIndex--; )
++        {
++            const VmaSuballocation& nextSuballoc = suballocations2nd[nextSuballocIndex];
++            if (VmaBlocksOnSamePage(resultOffset, allocSize, nextSuballoc.offset, bufferImageGranularity))
++            {
++                if (VmaIsBufferImageGranularityConflict(nextSuballoc.type, allocType))
++                {
++                    bufferImageGranularityConflict = true;
++                    break;
++                }
++            }
++            else
++                // Already on previous page.
++                break;
++        }
++        if (bufferImageGranularityConflict)
++        {
++            resultOffset = VmaAlignDown(resultOffset, bufferImageGranularity);
++        }
++    }
++
++    // There is enough free space.
++    const VkDeviceSize endOf1st = !suballocations1st.empty() ?
++        suballocations1st.back().offset + suballocations1st.back().size :
++        0;
++    if (endOf1st + debugMargin <= resultOffset)
++    {
++        // Check previous suballocations for BufferImageGranularity conflicts.
++        // If conflict exists, allocation cannot be made here.
++        if (bufferImageGranularity > 1)
++        {
++            for (size_t prevSuballocIndex = suballocations1st.size(); prevSuballocIndex--; )
++            {
++                const VmaSuballocation& prevSuballoc = suballocations1st[prevSuballocIndex];
++                if (VmaBlocksOnSamePage(prevSuballoc.offset, prevSuballoc.size, resultOffset, bufferImageGranularity))
++                {
++                    if (VmaIsBufferImageGranularityConflict(allocType, prevSuballoc.type))
++                    {
++                        return false;
++                    }
++                }
++                else
++                {
++                    // Already on next page.
++                    break;
++                }
++            }
++        }
++
++        // All tests passed: Success.
++        pAllocationRequest->allocHandle = (VmaAllocHandle)(resultOffset + 1);
++        // pAllocationRequest->item unused.
++        pAllocationRequest->type = VmaAllocationRequestType::UpperAddress;
++        return true;
++    }
++
++    return false;
++}
++#endif // _VMA_BLOCK_METADATA_LINEAR_FUNCTIONS
++#endif // _VMA_BLOCK_METADATA_LINEAR
++
++#if 0
++#ifndef _VMA_BLOCK_METADATA_BUDDY
++/*
++- GetSize() is the original size of allocated memory block.
++- m_UsableSize is this size aligned down to a power of two.
++  All allocations and calculations happen relative to m_UsableSize.
++- GetUnusableSize() is the difference between them.
++  It is reported as separate, unused range, not available for allocations.
++
++Node at level 0 has size = m_UsableSize.
++Each next level contains nodes with size 2 times smaller than current level.
++m_LevelCount is the maximum number of levels to use in the current object.
++*/
++class VmaBlockMetadata_Buddy : public VmaBlockMetadata
++{
++    VMA_CLASS_NO_COPY(VmaBlockMetadata_Buddy)
++public:
++    VmaBlockMetadata_Buddy(const VkAllocationCallbacks* pAllocationCallbacks,
++        VkDeviceSize bufferImageGranularity, bool isVirtual);
++    virtual ~VmaBlockMetadata_Buddy();
++
++    size_t GetAllocationCount() const override { return m_AllocationCount; }
++    VkDeviceSize GetSumFreeSize() const override { return m_SumFreeSize + GetUnusableSize(); }
++    bool IsEmpty() const override { return m_Root->type == Node::TYPE_FREE; }
++    VkResult CheckCorruption(const void* pBlockData) override { return VK_ERROR_FEATURE_NOT_PRESENT; }
++    VkDeviceSize GetAllocationOffset(VmaAllocHandle allocHandle) const override { return (VkDeviceSize)allocHandle - 1; };
++    void DebugLogAllAllocations() const override { DebugLogAllAllocationNode(m_Root, 0); }
++
++    void Init(VkDeviceSize size) override;
++    bool Validate() const override;
++
++    void AddDetailedStatistics(VmaDetailedStatistics& inoutStats) const override;
++    void AddStatistics(VmaStatistics& inoutStats) const override;
++
++#if VMA_STATS_STRING_ENABLED
++    void PrintDetailedMap(class VmaJsonWriter& json, uint32_t mapRefCount) const override;
++#endif
++
++    bool CreateAllocationRequest(
++        VkDeviceSize allocSize,
++        VkDeviceSize allocAlignment,
++        bool upperAddress,
++        VmaSuballocationType allocType,
++        uint32_t strategy,
++        VmaAllocationRequest* pAllocationRequest) override;
++
++    void Alloc(
++        const VmaAllocationRequest& request,
++        VmaSuballocationType type,
++        void* userData) override;
++
++    void Free(VmaAllocHandle allocHandle) override;
++    void GetAllocationInfo(VmaAllocHandle allocHandle, VmaVirtualAllocationInfo& outInfo) override;
++    void* GetAllocationUserData(VmaAllocHandle allocHandle) const override;
++    VmaAllocHandle GetAllocationListBegin() const override;
++    VmaAllocHandle GetNextAllocation(VmaAllocHandle prevAlloc) const override;
++    void Clear() override;
++    void SetAllocationUserData(VmaAllocHandle allocHandle, void* userData) override;
++
++private:
++    static const size_t MAX_LEVELS = 48;
++
++    struct ValidationContext
++    {
++        size_t calculatedAllocationCount = 0;
++        size_t calculatedFreeCount = 0;
++        VkDeviceSize calculatedSumFreeSize = 0;
++    };
++    struct Node
++    {
++        VkDeviceSize offset;
++        enum TYPE
++        {
++            TYPE_FREE,
++            TYPE_ALLOCATION,
++            TYPE_SPLIT,
++            TYPE_COUNT
++        } type;
++        Node* parent;
++        Node* buddy;
++
++        union
++        {
++            struct
++            {
++                Node* prev;
++                Node* next;
++            } free;
++            struct
++            {
++                void* userData;
++            } allocation;
++            struct
++            {
++                Node* leftChild;
++            } split;
++        };
++    };
++
++    // Size of the memory block aligned down to a power of two.
++    VkDeviceSize m_UsableSize;
++    uint32_t m_LevelCount;
++    VmaPoolAllocator<Node> m_NodeAllocator;
++    Node* m_Root;
++    struct
++    {
++        Node* front;
++        Node* back;
++    } m_FreeList[MAX_LEVELS];
++
++    // Number of nodes in the tree with type == TYPE_ALLOCATION.
++    size_t m_AllocationCount;
++    // Number of nodes in the tree with type == TYPE_FREE.
++    size_t m_FreeCount;
++    // Doesn't include space wasted due to internal fragmentation - allocation sizes are just aligned up to node sizes.
++    // Doesn't include unusable size.
++    VkDeviceSize m_SumFreeSize;
++
++    VkDeviceSize GetUnusableSize() const { return GetSize() - m_UsableSize; }
++    VkDeviceSize LevelToNodeSize(uint32_t level) const { return m_UsableSize >> level; }
++
++    VkDeviceSize AlignAllocationSize(VkDeviceSize size) const
++    {
++        if (!IsVirtual())
++        {
++            size = VmaAlignUp(size, (VkDeviceSize)16);
++        }
++        return VmaNextPow2(size);
++    }
++    Node* FindAllocationNode(VkDeviceSize offset, uint32_t& outLevel) const;
++    void DeleteNodeChildren(Node* node);
++    bool ValidateNode(ValidationContext& ctx, const Node* parent, const Node* curr, uint32_t level, VkDeviceSize levelNodeSize) const;
++    uint32_t AllocSizeToLevel(VkDeviceSize allocSize) const;
++    void AddNodeToDetailedStatistics(VmaDetailedStatistics& inoutStats, const Node* node, VkDeviceSize levelNodeSize) const;
++    // Adds node to the front of FreeList at given level.
++    // node->type must be FREE.
++    // node->free.prev, next can be undefined.
++    void AddToFreeListFront(uint32_t level, Node* node);
++    // Removes node from FreeList at given level.
++    // node->type must be FREE.
++    // node->free.prev, next stay untouched.
++    void RemoveFromFreeList(uint32_t level, Node* node);
++    void DebugLogAllAllocationNode(Node* node, uint32_t level) const;
++
++#if VMA_STATS_STRING_ENABLED
++    void PrintDetailedMapNode(class VmaJsonWriter& json, const Node* node, VkDeviceSize levelNodeSize) const;
++#endif
++};
++
++#ifndef _VMA_BLOCK_METADATA_BUDDY_FUNCTIONS
++VmaBlockMetadata_Buddy::VmaBlockMetadata_Buddy(const VkAllocationCallbacks* pAllocationCallbacks,
++    VkDeviceSize bufferImageGranularity, bool isVirtual)
++    : VmaBlockMetadata(pAllocationCallbacks, bufferImageGranularity, isVirtual),
++    m_NodeAllocator(pAllocationCallbacks, 32), // firstBlockCapacity
++    m_Root(VMA_NULL),
++    m_AllocationCount(0),
++    m_FreeCount(1),
++    m_SumFreeSize(0)
++{
++    memset(m_FreeList, 0, sizeof(m_FreeList));
++}
++
++VmaBlockMetadata_Buddy::~VmaBlockMetadata_Buddy()
++{
++    DeleteNodeChildren(m_Root);
++    m_NodeAllocator.Free(m_Root);
++}
++
++void VmaBlockMetadata_Buddy::Init(VkDeviceSize size)
++{
++    VmaBlockMetadata::Init(size);
++
++    m_UsableSize = VmaPrevPow2(size);
++    m_SumFreeSize = m_UsableSize;
++
++    // Calculate m_LevelCount.
++    const VkDeviceSize minNodeSize = IsVirtual() ? 1 : 16;
++    m_LevelCount = 1;
++    while (m_LevelCount < MAX_LEVELS &&
++        LevelToNodeSize(m_LevelCount) >= minNodeSize)
++    {
++        ++m_LevelCount;
++    }
++
++    Node* rootNode = m_NodeAllocator.Alloc();
++    rootNode->offset = 0;
++    rootNode->type = Node::TYPE_FREE;
++    rootNode->parent = VMA_NULL;
++    rootNode->buddy = VMA_NULL;
++
++    m_Root = rootNode;
++    AddToFreeListFront(0, rootNode);
++}
++
++bool VmaBlockMetadata_Buddy::Validate() const
++{
++    // Validate tree.
++    ValidationContext ctx;
++    if (!ValidateNode(ctx, VMA_NULL, m_Root, 0, LevelToNodeSize(0)))
++    {
++        VMA_VALIDATE(false && "ValidateNode failed.");
++    }
++    VMA_VALIDATE(m_AllocationCount == ctx.calculatedAllocationCount);
++    VMA_VALIDATE(m_SumFreeSize == ctx.calculatedSumFreeSize);
++
++    // Validate free node lists.
++    for (uint32_t level = 0; level < m_LevelCount; ++level)
++    {
++        VMA_VALIDATE(m_FreeList[level].front == VMA_NULL ||
++            m_FreeList[level].front->free.prev == VMA_NULL);
++
++        for (Node* node = m_FreeList[level].front;
++            node != VMA_NULL;
++            node = node->free.next)
++        {
++            VMA_VALIDATE(node->type == Node::TYPE_FREE);
++
++            if (node->free.next == VMA_NULL)
++            {
++                VMA_VALIDATE(m_FreeList[level].back == node);
++            }
++            else
++            {
++                VMA_VALIDATE(node->free.next->free.prev == node);
++            }
++        }
++    }
++
++    // Validate that free lists ar higher levels are empty.
++    for (uint32_t level = m_LevelCount; level < MAX_LEVELS; ++level)
++    {
++        VMA_VALIDATE(m_FreeList[level].front == VMA_NULL && m_FreeList[level].back == VMA_NULL);
++    }
++
++    return true;
++}
++
++void VmaBlockMetadata_Buddy::AddDetailedStatistics(VmaDetailedStatistics& inoutStats) const
++{
++    inoutStats.statistics.blockCount++;
++    inoutStats.statistics.blockBytes += GetSize();
++
++    AddNodeToDetailedStatistics(inoutStats, m_Root, LevelToNodeSize(0));
++
++    const VkDeviceSize unusableSize = GetUnusableSize();
++    if (unusableSize > 0)
++        VmaAddDetailedStatisticsUnusedRange(inoutStats, unusableSize);
++}
++
++void VmaBlockMetadata_Buddy::AddStatistics(VmaStatistics& inoutStats) const
++{
++    inoutStats.blockCount++;
++    inoutStats.allocationCount += (uint32_t)m_AllocationCount;
++    inoutStats.blockBytes += GetSize();
++    inoutStats.allocationBytes += GetSize() - m_SumFreeSize;
++}
++
++#if VMA_STATS_STRING_ENABLED
++void VmaBlockMetadata_Buddy::PrintDetailedMap(class VmaJsonWriter& json, uint32_t mapRefCount) const
++{
++    VmaDetailedStatistics stats;
++    VmaClearDetailedStatistics(stats);
++    AddDetailedStatistics(stats);
++
++    PrintDetailedMap_Begin(
++        json,
++        stats.statistics.blockBytes - stats.statistics.allocationBytes,
++        stats.statistics.allocationCount,
++        stats.unusedRangeCount,
++        mapRefCount);
++
++    PrintDetailedMapNode(json, m_Root, LevelToNodeSize(0));
++
++    const VkDeviceSize unusableSize = GetUnusableSize();
++    if (unusableSize > 0)
++    {
++        PrintDetailedMap_UnusedRange(json,
++            m_UsableSize, // offset
++            unusableSize); // size
++    }
++
++    PrintDetailedMap_End(json);
++}
++#endif // VMA_STATS_STRING_ENABLED
++
++bool VmaBlockMetadata_Buddy::CreateAllocationRequest(
++    VkDeviceSize allocSize,
++    VkDeviceSize allocAlignment,
++    bool upperAddress,
++    VmaSuballocationType allocType,
++    uint32_t strategy,
++    VmaAllocationRequest* pAllocationRequest)
++{
++    VMA_ASSERT(!upperAddress && "VMA_ALLOCATION_CREATE_UPPER_ADDRESS_BIT can be used only with linear algorithm.");
++
++    allocSize = AlignAllocationSize(allocSize);
++
++    // Simple way to respect bufferImageGranularity. May be optimized some day.
++    // Whenever it might be an OPTIMAL image...
++    if (allocType == VMA_SUBALLOCATION_TYPE_UNKNOWN ||
++        allocType == VMA_SUBALLOCATION_TYPE_IMAGE_UNKNOWN ||
++        allocType == VMA_SUBALLOCATION_TYPE_IMAGE_OPTIMAL)
++    {
++        allocAlignment = VMA_MAX(allocAlignment, GetBufferImageGranularity());
++        allocSize = VmaAlignUp(allocSize, GetBufferImageGranularity());
++    }
++
++    if (allocSize > m_UsableSize)
++    {
++        return false;
++    }
++
++    const uint32_t targetLevel = AllocSizeToLevel(allocSize);
++    for (uint32_t level = targetLevel; level--; )
++    {
++        for (Node* freeNode = m_FreeList[level].front;
++            freeNode != VMA_NULL;
++            freeNode = freeNode->free.next)
++        {
++            if (freeNode->offset % allocAlignment == 0)
++            {
++                pAllocationRequest->type = VmaAllocationRequestType::Normal;
++                pAllocationRequest->allocHandle = (VmaAllocHandle)(freeNode->offset + 1);
++                pAllocationRequest->size = allocSize;
++                pAllocationRequest->customData = (void*)(uintptr_t)level;
++                return true;
++            }
++        }
++    }
++
++    return false;
++}
++
++void VmaBlockMetadata_Buddy::Alloc(
++    const VmaAllocationRequest& request,
++    VmaSuballocationType type,
++    void* userData)
++{
++    VMA_ASSERT(request.type == VmaAllocationRequestType::Normal);
++
++    const uint32_t targetLevel = AllocSizeToLevel(request.size);
++    uint32_t currLevel = (uint32_t)(uintptr_t)request.customData;
++
++    Node* currNode = m_FreeList[currLevel].front;
++    VMA_ASSERT(currNode != VMA_NULL && currNode->type == Node::TYPE_FREE);
++    const VkDeviceSize offset = (VkDeviceSize)request.allocHandle - 1;
++    while (currNode->offset != offset)
++    {
++        currNode = currNode->free.next;
++        VMA_ASSERT(currNode != VMA_NULL && currNode->type == Node::TYPE_FREE);
++    }
++
++    // Go down, splitting free nodes.
++    while (currLevel < targetLevel)
++    {
++        // currNode is already first free node at currLevel.
++        // Remove it from list of free nodes at this currLevel.
++        RemoveFromFreeList(currLevel, currNode);
++
++        const uint32_t childrenLevel = currLevel + 1;
++
++        // Create two free sub-nodes.
++        Node* leftChild = m_NodeAllocator.Alloc();
++        Node* rightChild = m_NodeAllocator.Alloc();
++
++        leftChild->offset = currNode->offset;
++        leftChild->type = Node::TYPE_FREE;
++        leftChild->parent = currNode;
++        leftChild->buddy = rightChild;
++
++        rightChild->offset = currNode->offset + LevelToNodeSize(childrenLevel);
++        rightChild->type = Node::TYPE_FREE;
++        rightChild->parent = currNode;
++        rightChild->buddy = leftChild;
++
++        // Convert current currNode to split type.
++        currNode->type = Node::TYPE_SPLIT;
++        currNode->split.leftChild = leftChild;
++
++        // Add child nodes to free list. Order is important!
++        AddToFreeListFront(childrenLevel, rightChild);
++        AddToFreeListFront(childrenLevel, leftChild);
++
++        ++m_FreeCount;
++        ++currLevel;
++        currNode = m_FreeList[currLevel].front;
++
++        /*
++        We can be sure that currNode, as left child of node previously split,
++        also fulfills the alignment requirement.
++        */
++    }
++
++    // Remove from free list.
++    VMA_ASSERT(currLevel == targetLevel &&
++        currNode != VMA_NULL &&
++        currNode->type == Node::TYPE_FREE);
++    RemoveFromFreeList(currLevel, currNode);
++
++    // Convert to allocation node.
++    currNode->type = Node::TYPE_ALLOCATION;
++    currNode->allocation.userData = userData;
++
++    ++m_AllocationCount;
++    --m_FreeCount;
++    m_SumFreeSize -= request.size;
++}
++
++void VmaBlockMetadata_Buddy::GetAllocationInfo(VmaAllocHandle allocHandle, VmaVirtualAllocationInfo& outInfo)
++{
++    uint32_t level = 0;
++    outInfo.offset = (VkDeviceSize)allocHandle - 1;
++    const Node* const node = FindAllocationNode(outInfo.offset, level);
++    outInfo.size = LevelToNodeSize(level);
++    outInfo.pUserData = node->allocation.userData;
++}
++
++void* VmaBlockMetadata_Buddy::GetAllocationUserData(VmaAllocHandle allocHandle) const
++{
++    uint32_t level = 0;
++    const Node* const node = FindAllocationNode((VkDeviceSize)allocHandle - 1, level);
++    return node->allocation.userData;
++}
++
++VmaAllocHandle VmaBlockMetadata_Buddy::GetAllocationListBegin() const
++{
++    // Function only used for defragmentation, which is disabled for this algorithm
++    return VK_NULL_HANDLE;
++}
++
++VmaAllocHandle VmaBlockMetadata_Buddy::GetNextAllocation(VmaAllocHandle prevAlloc) const
++{
++    // Function only used for defragmentation, which is disabled for this algorithm
++    return VK_NULL_HANDLE;
++}
++
++void VmaBlockMetadata_Buddy::DeleteNodeChildren(Node* node)
++{
++    if (node->type == Node::TYPE_SPLIT)
++    {
++        DeleteNodeChildren(node->split.leftChild->buddy);
++        DeleteNodeChildren(node->split.leftChild);
++        const VkAllocationCallbacks* allocationCallbacks = GetAllocationCallbacks();
++        m_NodeAllocator.Free(node->split.leftChild->buddy);
++        m_NodeAllocator.Free(node->split.leftChild);
++    }
++}
++
++void VmaBlockMetadata_Buddy::Clear()
++{
++    DeleteNodeChildren(m_Root);
++    m_Root->type = Node::TYPE_FREE;
++    m_AllocationCount = 0;
++    m_FreeCount = 1;
++    m_SumFreeSize = m_UsableSize;
++}
++
++void VmaBlockMetadata_Buddy::SetAllocationUserData(VmaAllocHandle allocHandle, void* userData)
++{
++    uint32_t level = 0;
++    Node* const node = FindAllocationNode((VkDeviceSize)allocHandle - 1, level);
++    node->allocation.userData = userData;
++}
++
++VmaBlockMetadata_Buddy::Node* VmaBlockMetadata_Buddy::FindAllocationNode(VkDeviceSize offset, uint32_t& outLevel) const
++{
++    Node* node = m_Root;
++    VkDeviceSize nodeOffset = 0;
++    outLevel = 0;
++    VkDeviceSize levelNodeSize = LevelToNodeSize(0);
++    while (node->type == Node::TYPE_SPLIT)
++    {
++        const VkDeviceSize nextLevelNodeSize = levelNodeSize >> 1;
++        if (offset < nodeOffset + nextLevelNodeSize)
++        {
++            node = node->split.leftChild;
++        }
++        else
++        {
++            node = node->split.leftChild->buddy;
++            nodeOffset += nextLevelNodeSize;
++        }
++        ++outLevel;
++        levelNodeSize = nextLevelNodeSize;
++    }
++
++    VMA_ASSERT(node != VMA_NULL && node->type == Node::TYPE_ALLOCATION);
++    return node;
++}
++
++bool VmaBlockMetadata_Buddy::ValidateNode(ValidationContext& ctx, const Node* parent, const Node* curr, uint32_t level, VkDeviceSize levelNodeSize) const
++{
++    VMA_VALIDATE(level < m_LevelCount);
++    VMA_VALIDATE(curr->parent == parent);
++    VMA_VALIDATE((curr->buddy == VMA_NULL) == (parent == VMA_NULL));
++    VMA_VALIDATE(curr->buddy == VMA_NULL || curr->buddy->buddy == curr);
++    switch (curr->type)
++    {
++    case Node::TYPE_FREE:
++        // curr->free.prev, next are validated separately.
++        ctx.calculatedSumFreeSize += levelNodeSize;
++        ++ctx.calculatedFreeCount;
++        break;
++    case Node::TYPE_ALLOCATION:
++        ++ctx.calculatedAllocationCount;
++        if (!IsVirtual())
++        {
++            VMA_VALIDATE(curr->allocation.userData != VMA_NULL);
++        }
++        break;
++    case Node::TYPE_SPLIT:
++    {
++        const uint32_t childrenLevel = level + 1;
++        const VkDeviceSize childrenLevelNodeSize = levelNodeSize >> 1;
++        const Node* const leftChild = curr->split.leftChild;
++        VMA_VALIDATE(leftChild != VMA_NULL);
++        VMA_VALIDATE(leftChild->offset == curr->offset);
++        if (!ValidateNode(ctx, curr, leftChild, childrenLevel, childrenLevelNodeSize))
++        {
++            VMA_VALIDATE(false && "ValidateNode for left child failed.");
++        }
++        const Node* const rightChild = leftChild->buddy;
++        VMA_VALIDATE(rightChild->offset == curr->offset + childrenLevelNodeSize);
++        if (!ValidateNode(ctx, curr, rightChild, childrenLevel, childrenLevelNodeSize))
++        {
++            VMA_VALIDATE(false && "ValidateNode for right child failed.");
++        }
++    }
++    break;
++    default:
++        return false;
++    }
++
++    return true;
++}
++
++uint32_t VmaBlockMetadata_Buddy::AllocSizeToLevel(VkDeviceSize allocSize) const
++{
++    // I know this could be optimized somehow e.g. by using std::log2p1 from C++20.
++    uint32_t level = 0;
++    VkDeviceSize currLevelNodeSize = m_UsableSize;
++    VkDeviceSize nextLevelNodeSize = currLevelNodeSize >> 1;
++    while (allocSize <= nextLevelNodeSize && level + 1 < m_LevelCount)
++    {
++        ++level;
++        currLevelNodeSize >>= 1;
++        nextLevelNodeSize >>= 1;
++    }
++    return level;
++}
++
++void VmaBlockMetadata_Buddy::Free(VmaAllocHandle allocHandle)
++{
++    uint32_t level = 0;
++    Node* node = FindAllocationNode((VkDeviceSize)allocHandle - 1, level);
++
++    ++m_FreeCount;
++    --m_AllocationCount;
++    m_SumFreeSize += LevelToNodeSize(level);
++
++    node->type = Node::TYPE_FREE;
++
++    // Join free nodes if possible.
++    while (level > 0 && node->buddy->type == Node::TYPE_FREE)
++    {
++        RemoveFromFreeList(level, node->buddy);
++        Node* const parent = node->parent;
++
++        m_NodeAllocator.Free(node->buddy);
++        m_NodeAllocator.Free(node);
++        parent->type = Node::TYPE_FREE;
++
++        node = parent;
++        --level;
++        --m_FreeCount;
++    }
++
++    AddToFreeListFront(level, node);
++}
++
++void VmaBlockMetadata_Buddy::AddNodeToDetailedStatistics(VmaDetailedStatistics& inoutStats, const Node* node, VkDeviceSize levelNodeSize) const
++{
++    switch (node->type)
++    {
++    case Node::TYPE_FREE:
++        VmaAddDetailedStatisticsUnusedRange(inoutStats, levelNodeSize);
++        break;
++    case Node::TYPE_ALLOCATION:
++        VmaAddDetailedStatisticsAllocation(inoutStats, levelNodeSize);
++        break;
++    case Node::TYPE_SPLIT:
++    {
++        const VkDeviceSize childrenNodeSize = levelNodeSize / 2;
++        const Node* const leftChild = node->split.leftChild;
++        AddNodeToDetailedStatistics(inoutStats, leftChild, childrenNodeSize);
++        const Node* const rightChild = leftChild->buddy;
++        AddNodeToDetailedStatistics(inoutStats, rightChild, childrenNodeSize);
++    }
++    break;
++    default:
++        VMA_ASSERT(0);
++    }
++}
++
++void VmaBlockMetadata_Buddy::AddToFreeListFront(uint32_t level, Node* node)
++{
++    VMA_ASSERT(node->type == Node::TYPE_FREE);
++
++    // List is empty.
++    Node* const frontNode = m_FreeList[level].front;
++    if (frontNode == VMA_NULL)
++    {
++        VMA_ASSERT(m_FreeList[level].back == VMA_NULL);
++        node->free.prev = node->free.next = VMA_NULL;
++        m_FreeList[level].front = m_FreeList[level].back = node;
++    }
++    else
++    {
++        VMA_ASSERT(frontNode->free.prev == VMA_NULL);
++        node->free.prev = VMA_NULL;
++        node->free.next = frontNode;
++        frontNode->free.prev = node;
++        m_FreeList[level].front = node;
++    }
++}
++
++void VmaBlockMetadata_Buddy::RemoveFromFreeList(uint32_t level, Node* node)
++{
++    VMA_ASSERT(m_FreeList[level].front != VMA_NULL);
++
++    // It is at the front.
++    if (node->free.prev == VMA_NULL)
++    {
++        VMA_ASSERT(m_FreeList[level].front == node);
++        m_FreeList[level].front = node->free.next;
++    }
++    else
++    {
++        Node* const prevFreeNode = node->free.prev;
++        VMA_ASSERT(prevFreeNode->free.next == node);
++        prevFreeNode->free.next = node->free.next;
++    }
++
++    // It is at the back.
++    if (node->free.next == VMA_NULL)
++    {
++        VMA_ASSERT(m_FreeList[level].back == node);
++        m_FreeList[level].back = node->free.prev;
++    }
++    else
++    {
++        Node* const nextFreeNode = node->free.next;
++        VMA_ASSERT(nextFreeNode->free.prev == node);
++        nextFreeNode->free.prev = node->free.prev;
++    }
++}
++
++void VmaBlockMetadata_Buddy::DebugLogAllAllocationNode(Node* node, uint32_t level) const
++{
++    switch (node->type)
++    {
++    case Node::TYPE_FREE:
++        break;
++    case Node::TYPE_ALLOCATION:
++        DebugLogAllocation(node->offset, LevelToNodeSize(level), node->allocation.userData);
++        break;
++    case Node::TYPE_SPLIT:
++    {
++        ++level;
++        DebugLogAllAllocationNode(node->split.leftChild, level);
++        DebugLogAllAllocationNode(node->split.leftChild->buddy, level);
++    }
++    break;
++    default:
++        VMA_ASSERT(0);
++    }
++}
++
++#if VMA_STATS_STRING_ENABLED
++void VmaBlockMetadata_Buddy::PrintDetailedMapNode(class VmaJsonWriter& json, const Node* node, VkDeviceSize levelNodeSize) const
++{
++    switch (node->type)
++    {
++    case Node::TYPE_FREE:
++        PrintDetailedMap_UnusedRange(json, node->offset, levelNodeSize);
++        break;
++    case Node::TYPE_ALLOCATION:
++        PrintDetailedMap_Allocation(json, node->offset, levelNodeSize, node->allocation.userData);
++        break;
++    case Node::TYPE_SPLIT:
++    {
++        const VkDeviceSize childrenNodeSize = levelNodeSize / 2;
++        const Node* const leftChild = node->split.leftChild;
++        PrintDetailedMapNode(json, leftChild, childrenNodeSize);
++        const Node* const rightChild = leftChild->buddy;
++        PrintDetailedMapNode(json, rightChild, childrenNodeSize);
++    }
++    break;
++    default:
++        VMA_ASSERT(0);
++    }
++}
++#endif // VMA_STATS_STRING_ENABLED
++#endif // _VMA_BLOCK_METADATA_BUDDY_FUNCTIONS
++#endif // _VMA_BLOCK_METADATA_BUDDY
++#endif // #if 0
++
++#ifndef _VMA_BLOCK_METADATA_TLSF
++// To not search current larger region if first allocation won't succeed and skip to smaller range
++// use with VMA_ALLOCATION_CREATE_STRATEGY_MIN_MEMORY_BIT as strategy in CreateAllocationRequest().
++// When fragmentation and reusal of previous blocks doesn't matter then use with
++// VMA_ALLOCATION_CREATE_STRATEGY_MIN_TIME_BIT for fastest alloc time possible.
++class VmaBlockMetadata_TLSF : public VmaBlockMetadata
++{
++    VMA_CLASS_NO_COPY(VmaBlockMetadata_TLSF)
++public:
++    VmaBlockMetadata_TLSF(const VkAllocationCallbacks* pAllocationCallbacks,
++        VkDeviceSize bufferImageGranularity, bool isVirtual);
++    virtual ~VmaBlockMetadata_TLSF();
++
++    size_t GetAllocationCount() const override { return m_AllocCount; }
++    size_t GetFreeRegionsCount() const override { return m_BlocksFreeCount + 1; }
++    VkDeviceSize GetSumFreeSize() const override { return m_BlocksFreeSize + m_NullBlock->size; }
++    bool IsEmpty() const override { return m_NullBlock->offset == 0; }
++    VkDeviceSize GetAllocationOffset(VmaAllocHandle allocHandle) const override { return ((Block*)allocHandle)->offset; };
++
++    void Init(VkDeviceSize size) override;
++    bool Validate() const override;
++
++    void AddDetailedStatistics(VmaDetailedStatistics& inoutStats) const override;
++    void AddStatistics(VmaStatistics& inoutStats) const override;
++
++#if VMA_STATS_STRING_ENABLED
++    void PrintDetailedMap(class VmaJsonWriter& json) const override;
++#endif
++
++    bool CreateAllocationRequest(
++        VkDeviceSize allocSize,
++        VkDeviceSize allocAlignment,
++        bool upperAddress,
++        VmaSuballocationType allocType,
++        uint32_t strategy,
++        VmaAllocationRequest* pAllocationRequest) override;
++
++    VkResult CheckCorruption(const void* pBlockData) override;
++    void Alloc(
++        const VmaAllocationRequest& request,
++        VmaSuballocationType type,
++        void* userData) override;
++
++    void Free(VmaAllocHandle allocHandle) override;
++    void GetAllocationInfo(VmaAllocHandle allocHandle, VmaVirtualAllocationInfo& outInfo) override;
++    void* GetAllocationUserData(VmaAllocHandle allocHandle) const override;
++    VmaAllocHandle GetAllocationListBegin() const override;
++    VmaAllocHandle GetNextAllocation(VmaAllocHandle prevAlloc) const override;
++    VkDeviceSize GetNextFreeRegionSize(VmaAllocHandle alloc) const override;
++    void Clear() override;
++    void SetAllocationUserData(VmaAllocHandle allocHandle, void* userData) override;
++    void DebugLogAllAllocations() const override;
++
++private:
++    // According to original paper it should be preferable 4 or 5:
++    // M. Masmano, I. Ripoll, A. Crespo, and J. Real "TLSF: a New Dynamic Memory Allocator for Real-Time Systems"
++    // http://www.gii.upv.es/tlsf/files/ecrts04_tlsf.pdf
++    static const uint8_t SECOND_LEVEL_INDEX = 5;
++    static const uint16_t SMALL_BUFFER_SIZE = 256;
++    static const uint32_t INITIAL_BLOCK_ALLOC_COUNT = 16;
++    static const uint8_t MEMORY_CLASS_SHIFT = 7;
++    static const uint8_t MAX_MEMORY_CLASSES = 65 - MEMORY_CLASS_SHIFT;
++
++    class Block
++    {
++    public:
++        VkDeviceSize offset;
++        VkDeviceSize size;
++        Block* prevPhysical;
++        Block* nextPhysical;
++
++        void MarkFree() { prevFree = VMA_NULL; }
++        void MarkTaken() { prevFree = this; }
++        bool IsFree() const { return prevFree != this; }
++        void*& UserData() { VMA_HEAVY_ASSERT(!IsFree()); return userData; }
++        Block*& PrevFree() { return prevFree; }
++        Block*& NextFree() { VMA_HEAVY_ASSERT(IsFree()); return nextFree; }
++
++    private:
++        Block* prevFree; // Address of the same block here indicates that block is taken
++        union
++        {
++            Block* nextFree;
++            void* userData;
++        };
++    };
++
++    size_t m_AllocCount;
++    // Total number of free blocks besides null block
++    size_t m_BlocksFreeCount;
++    // Total size of free blocks excluding null block
++    VkDeviceSize m_BlocksFreeSize;
++    uint32_t m_IsFreeBitmap;
++    uint8_t m_MemoryClasses;
++    uint32_t m_InnerIsFreeBitmap[MAX_MEMORY_CLASSES];
++    uint32_t m_ListsCount;
++    /*
++    * 0: 0-3 lists for small buffers
++    * 1+: 0-(2^SLI-1) lists for normal buffers
++    */
++    Block** m_FreeList;
++    VmaPoolAllocator<Block> m_BlockAllocator;
++    Block* m_NullBlock;
++    VmaBlockBufferImageGranularity m_GranularityHandler;
++
++    uint8_t SizeToMemoryClass(VkDeviceSize size) const;
++    uint16_t SizeToSecondIndex(VkDeviceSize size, uint8_t memoryClass) const;
++    uint32_t GetListIndex(uint8_t memoryClass, uint16_t secondIndex) const;
++    uint32_t GetListIndex(VkDeviceSize size) const;
++
++    void RemoveFreeBlock(Block* block);
++    void InsertFreeBlock(Block* block);
++    void MergeBlock(Block* block, Block* prev);
++
++    Block* FindFreeBlock(VkDeviceSize size, uint32_t& listIndex) const;
++    bool CheckBlock(
++        Block& block,
++        uint32_t listIndex,
++        VkDeviceSize allocSize,
++        VkDeviceSize allocAlignment,
++        VmaSuballocationType allocType,
++        VmaAllocationRequest* pAllocationRequest);
++};
++
++#ifndef _VMA_BLOCK_METADATA_TLSF_FUNCTIONS
++VmaBlockMetadata_TLSF::VmaBlockMetadata_TLSF(const VkAllocationCallbacks* pAllocationCallbacks,
++    VkDeviceSize bufferImageGranularity, bool isVirtual)
++    : VmaBlockMetadata(pAllocationCallbacks, bufferImageGranularity, isVirtual),
++    m_AllocCount(0),
++    m_BlocksFreeCount(0),
++    m_BlocksFreeSize(0),
++    m_IsFreeBitmap(0),
++    m_MemoryClasses(0),
++    m_ListsCount(0),
++    m_FreeList(VMA_NULL),
++    m_BlockAllocator(pAllocationCallbacks, INITIAL_BLOCK_ALLOC_COUNT),
++    m_NullBlock(VMA_NULL),
++    m_GranularityHandler(bufferImageGranularity) {}
++
++VmaBlockMetadata_TLSF::~VmaBlockMetadata_TLSF()
++{
++    if (m_FreeList)
++        vma_delete_array(GetAllocationCallbacks(), m_FreeList, m_ListsCount);
++    m_GranularityHandler.Destroy(GetAllocationCallbacks());
++}
++
++void VmaBlockMetadata_TLSF::Init(VkDeviceSize size)
++{
++    VmaBlockMetadata::Init(size);
++
++    if (!IsVirtual())
++        m_GranularityHandler.Init(GetAllocationCallbacks(), size);
++
++    m_NullBlock = m_BlockAllocator.Alloc();
++    m_NullBlock->size = size;
++    m_NullBlock->offset = 0;
++    m_NullBlock->prevPhysical = VMA_NULL;
++    m_NullBlock->nextPhysical = VMA_NULL;
++    m_NullBlock->MarkFree();
++    m_NullBlock->NextFree() = VMA_NULL;
++    m_NullBlock->PrevFree() = VMA_NULL;
++    uint8_t memoryClass = SizeToMemoryClass(size);
++    uint16_t sli = SizeToSecondIndex(size, memoryClass);
++    m_ListsCount = (memoryClass == 0 ? 0 : (memoryClass - 1) * (1UL << SECOND_LEVEL_INDEX) + sli) + 1;
++    if (IsVirtual())
++        m_ListsCount += 1UL << SECOND_LEVEL_INDEX;
++    else
++        m_ListsCount += 4;
++
++    m_MemoryClasses = memoryClass + 2;
++    memset(m_InnerIsFreeBitmap, 0, MAX_MEMORY_CLASSES * sizeof(uint32_t));
++
++    m_FreeList = vma_new_array(GetAllocationCallbacks(), Block*, m_ListsCount);
++    memset(m_FreeList, 0, m_ListsCount * sizeof(Block*));
++}
++
++bool VmaBlockMetadata_TLSF::Validate() const
++{
++    VMA_VALIDATE(GetSumFreeSize() <= GetSize());
++
++    VkDeviceSize calculatedSize = m_NullBlock->size;
++    VkDeviceSize calculatedFreeSize = m_NullBlock->size;
++    size_t allocCount = 0;
++    size_t freeCount = 0;
++
++    // Check integrity of free lists
++    for (uint32_t list = 0; list < m_ListsCount; ++list)
++    {
++        Block* block = m_FreeList[list];
++        if (block != VMA_NULL)
++        {
++            VMA_VALIDATE(block->IsFree());
++            VMA_VALIDATE(block->PrevFree() == VMA_NULL);
++            while (block->NextFree())
++            {
++                VMA_VALIDATE(block->NextFree()->IsFree());
++                VMA_VALIDATE(block->NextFree()->PrevFree() == block);
++                block = block->NextFree();
++            }
++        }
++    }
++
++    VkDeviceSize nextOffset = m_NullBlock->offset;
++    auto validateCtx = m_GranularityHandler.StartValidation(GetAllocationCallbacks(), IsVirtual());
++
++    VMA_VALIDATE(m_NullBlock->nextPhysical == VMA_NULL);
++    if (m_NullBlock->prevPhysical)
++    {
++        VMA_VALIDATE(m_NullBlock->prevPhysical->nextPhysical == m_NullBlock);
++    }
++    // Check all blocks
++    for (Block* prev = m_NullBlock->prevPhysical; prev != VMA_NULL; prev = prev->prevPhysical)
++    {
++        VMA_VALIDATE(prev->offset + prev->size == nextOffset);
++        nextOffset = prev->offset;
++        calculatedSize += prev->size;
++
++        uint32_t listIndex = GetListIndex(prev->size);
++        if (prev->IsFree())
++        {
++            ++freeCount;
++            // Check if free block belongs to free list
++            Block* freeBlock = m_FreeList[listIndex];
++            VMA_VALIDATE(freeBlock != VMA_NULL);
++
++            bool found = false;
++            do
++            {
++                if (freeBlock == prev)
++                    found = true;
++
++                freeBlock = freeBlock->NextFree();
++            } while (!found && freeBlock != VMA_NULL);
++
++            VMA_VALIDATE(found);
++            calculatedFreeSize += prev->size;
++        }
++        else
++        {
++            ++allocCount;
++            // Check if taken block is not on a free list
++            Block* freeBlock = m_FreeList[listIndex];
++            while (freeBlock)
++            {
++                VMA_VALIDATE(freeBlock != prev);
++                freeBlock = freeBlock->NextFree();
++            }
++
++            if (!IsVirtual())
++            {
++                VMA_VALIDATE(m_GranularityHandler.Validate(validateCtx, prev->offset, prev->size));
++            }
++        }
++
++        if (prev->prevPhysical)
++        {
++            VMA_VALIDATE(prev->prevPhysical->nextPhysical == prev);
++        }
++    }
++
++    if (!IsVirtual())
++    {
++        VMA_VALIDATE(m_GranularityHandler.FinishValidation(validateCtx));
++    }
++
++    VMA_VALIDATE(nextOffset == 0);
++    VMA_VALIDATE(calculatedSize == GetSize());
++    VMA_VALIDATE(calculatedFreeSize == GetSumFreeSize());
++    VMA_VALIDATE(allocCount == m_AllocCount);
++    VMA_VALIDATE(freeCount == m_BlocksFreeCount);
++
++    return true;
++}
++
++void VmaBlockMetadata_TLSF::AddDetailedStatistics(VmaDetailedStatistics& inoutStats) const
++{
++    inoutStats.statistics.blockCount++;
++    inoutStats.statistics.blockBytes += GetSize();
++    if (m_NullBlock->size > 0)
++        VmaAddDetailedStatisticsUnusedRange(inoutStats, m_NullBlock->size);
++
++    for (Block* block = m_NullBlock->prevPhysical; block != VMA_NULL; block = block->prevPhysical)
++    {
++        if (block->IsFree())
++            VmaAddDetailedStatisticsUnusedRange(inoutStats, block->size);
++        else
++            VmaAddDetailedStatisticsAllocation(inoutStats, block->size);
++    }
++}
++
++void VmaBlockMetadata_TLSF::AddStatistics(VmaStatistics& inoutStats) const
++{
++    inoutStats.blockCount++;
++    inoutStats.allocationCount += (uint32_t)m_AllocCount;
++    inoutStats.blockBytes += GetSize();
++    inoutStats.allocationBytes += GetSize() - GetSumFreeSize();
++}
++
++#if VMA_STATS_STRING_ENABLED
++void VmaBlockMetadata_TLSF::PrintDetailedMap(class VmaJsonWriter& json) const
++{
++    size_t blockCount = m_AllocCount + m_BlocksFreeCount;
++    VmaStlAllocator<Block*> allocator(GetAllocationCallbacks());
++    VmaVector<Block*, VmaStlAllocator<Block*>> blockList(blockCount, allocator);
++
++    size_t i = blockCount;
++    for (Block* block = m_NullBlock->prevPhysical; block != VMA_NULL; block = block->prevPhysical)
++    {
++        blockList[--i] = block;
++    }
++    VMA_ASSERT(i == 0);
++
++    VmaDetailedStatistics stats;
++    VmaClearDetailedStatistics(stats);
++    AddDetailedStatistics(stats);
++
++    PrintDetailedMap_Begin(json,
++        stats.statistics.blockBytes - stats.statistics.allocationBytes,
++        stats.statistics.allocationCount,
++        stats.unusedRangeCount);
++
++    for (; i < blockCount; ++i)
++    {
++        Block* block = blockList[i];
++        if (block->IsFree())
++            PrintDetailedMap_UnusedRange(json, block->offset, block->size);
++        else
++            PrintDetailedMap_Allocation(json, block->offset, block->size, block->UserData());
++    }
++    if (m_NullBlock->size > 0)
++        PrintDetailedMap_UnusedRange(json, m_NullBlock->offset, m_NullBlock->size);
++
++    PrintDetailedMap_End(json);
++}
++#endif
++
++bool VmaBlockMetadata_TLSF::CreateAllocationRequest(
++    VkDeviceSize allocSize,
++    VkDeviceSize allocAlignment,
++    bool upperAddress,
++    VmaSuballocationType allocType,
++    uint32_t strategy,
++    VmaAllocationRequest* pAllocationRequest)
++{
++    VMA_ASSERT(allocSize > 0 && "Cannot allocate empty block!");
++    VMA_ASSERT(!upperAddress && "VMA_ALLOCATION_CREATE_UPPER_ADDRESS_BIT can be used only with linear algorithm.");
++
++    // For small granularity round up
++    if (!IsVirtual())
++        m_GranularityHandler.RoundupAllocRequest(allocType, allocSize, allocAlignment);
++
++    allocSize += GetDebugMargin();
++    // Quick check for too small pool
++    if (allocSize > GetSumFreeSize())
++        return false;
++
++    // If no free blocks in pool then check only null block
++    if (m_BlocksFreeCount == 0)
++        return CheckBlock(*m_NullBlock, m_ListsCount, allocSize, allocAlignment, allocType, pAllocationRequest);
++
++    // Round up to the next block
++    VkDeviceSize sizeForNextList = allocSize;
++    VkDeviceSize smallSizeStep = SMALL_BUFFER_SIZE / (IsVirtual() ? 1 << SECOND_LEVEL_INDEX : 4);
++    if (allocSize > SMALL_BUFFER_SIZE)
++    {
++        sizeForNextList += (1ULL << (VMA_BITSCAN_MSB(allocSize) - SECOND_LEVEL_INDEX));
++    }
++    else if (allocSize > SMALL_BUFFER_SIZE - smallSizeStep)
++        sizeForNextList = SMALL_BUFFER_SIZE + 1;
++    else
++        sizeForNextList += smallSizeStep;
++
++    uint32_t nextListIndex = 0;
++    uint32_t prevListIndex = 0;
++    Block* nextListBlock = VMA_NULL;
++    Block* prevListBlock = VMA_NULL;
++
++    // Check blocks according to strategies
++    if (strategy & VMA_ALLOCATION_CREATE_STRATEGY_MIN_TIME_BIT)
++    {
++        // Quick check for larger block first
++        nextListBlock = FindFreeBlock(sizeForNextList, nextListIndex);
++        if (nextListBlock != VMA_NULL && CheckBlock(*nextListBlock, nextListIndex, allocSize, allocAlignment, allocType, pAllocationRequest))
++            return true;
++
++        // If not fitted then null block
++        if (CheckBlock(*m_NullBlock, m_ListsCount, allocSize, allocAlignment, allocType, pAllocationRequest))
++            return true;
++
++        // Null block failed, search larger bucket
++        while (nextListBlock)
++        {
++            if (CheckBlock(*nextListBlock, nextListIndex, allocSize, allocAlignment, allocType, pAllocationRequest))
++                return true;
++            nextListBlock = nextListBlock->NextFree();
++        }
++
++        // Failed again, check best fit bucket
++        prevListBlock = FindFreeBlock(allocSize, prevListIndex);
++        while (prevListBlock)
++        {
++            if (CheckBlock(*prevListBlock, prevListIndex, allocSize, allocAlignment, allocType, pAllocationRequest))
++                return true;
++            prevListBlock = prevListBlock->NextFree();
++        }
++    }
++    else if (strategy & VMA_ALLOCATION_CREATE_STRATEGY_MIN_MEMORY_BIT)
++    {
++        // Check best fit bucket
++        prevListBlock = FindFreeBlock(allocSize, prevListIndex);
++        while (prevListBlock)
++        {
++            if (CheckBlock(*prevListBlock, prevListIndex, allocSize, allocAlignment, allocType, pAllocationRequest))
++                return true;
++            prevListBlock = prevListBlock->NextFree();
++        }
++
++        // If failed check null block
++        if (CheckBlock(*m_NullBlock, m_ListsCount, allocSize, allocAlignment, allocType, pAllocationRequest))
++            return true;
++
++        // Check larger bucket
++        nextListBlock = FindFreeBlock(sizeForNextList, nextListIndex);
++        while (nextListBlock)
++        {
++            if (CheckBlock(*nextListBlock, nextListIndex, allocSize, allocAlignment, allocType, pAllocationRequest))
++                return true;
++            nextListBlock = nextListBlock->NextFree();
++        }
++    }
++    else if (strategy & VMA_ALLOCATION_CREATE_STRATEGY_MIN_OFFSET_BIT )
++    {
++        // Perform search from the start
++        VmaStlAllocator<Block*> allocator(GetAllocationCallbacks());
++        VmaVector<Block*, VmaStlAllocator<Block*>> blockList(m_BlocksFreeCount, allocator);
++
++        size_t i = m_BlocksFreeCount;
++        for (Block* block = m_NullBlock->prevPhysical; block != VMA_NULL; block = block->prevPhysical)
++        {
++            if (block->IsFree() && block->size >= allocSize)
++                blockList[--i] = block;
++        }
++
++        for (; i < m_BlocksFreeCount; ++i)
++        {
++            Block& block = *blockList[i];
++            if (CheckBlock(block, GetListIndex(block.size), allocSize, allocAlignment, allocType, pAllocationRequest))
++                return true;
++        }
++
++        // If failed check null block
++        if (CheckBlock(*m_NullBlock, m_ListsCount, allocSize, allocAlignment, allocType, pAllocationRequest))
++            return true;
++
++        // Whole range searched, no more memory
++        return false;
++    }
++    else
++    {
++        // Check larger bucket
++        nextListBlock = FindFreeBlock(sizeForNextList, nextListIndex);
++        while (nextListBlock)
++        {
++            if (CheckBlock(*nextListBlock, nextListIndex, allocSize, allocAlignment, allocType, pAllocationRequest))
++                return true;
++            nextListBlock = nextListBlock->NextFree();
++        }
++
++        // If failed check null block
++        if (CheckBlock(*m_NullBlock, m_ListsCount, allocSize, allocAlignment, allocType, pAllocationRequest))
++            return true;
++
++        // Check best fit bucket
++        prevListBlock = FindFreeBlock(allocSize, prevListIndex);
++        while (prevListBlock)
++        {
++            if (CheckBlock(*prevListBlock, prevListIndex, allocSize, allocAlignment, allocType, pAllocationRequest))
++                return true;
++            prevListBlock = prevListBlock->NextFree();
++        }
++    }
++
++    // Worst case, full search has to be done
++    while (++nextListIndex < m_ListsCount)
++    {
++        nextListBlock = m_FreeList[nextListIndex];
++        while (nextListBlock)
++        {
++            if (CheckBlock(*nextListBlock, nextListIndex, allocSize, allocAlignment, allocType, pAllocationRequest))
++                return true;
++            nextListBlock = nextListBlock->NextFree();
++        }
++    }
++
++    // No more memory sadly
++    return false;
++}
++
++VkResult VmaBlockMetadata_TLSF::CheckCorruption(const void* pBlockData)
++{
++    for (Block* block = m_NullBlock->prevPhysical; block != VMA_NULL; block = block->prevPhysical)
++    {
++        if (!block->IsFree())
++        {
++            if (!VmaValidateMagicValue(pBlockData, block->offset + block->size))
++            {
++                VMA_ASSERT(0 && "MEMORY CORRUPTION DETECTED AFTER VALIDATED ALLOCATION!");
++                return VK_ERROR_UNKNOWN_COPY;
++            }
++        }
++    }
++
++    return VK_SUCCESS;
++}
++
++void VmaBlockMetadata_TLSF::Alloc(
++    const VmaAllocationRequest& request,
++    VmaSuballocationType type,
++    void* userData)
++{
++    VMA_ASSERT(request.type == VmaAllocationRequestType::TLSF);
++
++    // Get block and pop it from the free list
++    Block* currentBlock = (Block*)request.allocHandle;
++    VkDeviceSize offset = request.algorithmData;
++    VMA_ASSERT(currentBlock != VMA_NULL);
++    VMA_ASSERT(currentBlock->offset <= offset);
++
++    if (currentBlock != m_NullBlock)
++        RemoveFreeBlock(currentBlock);
++
++    VkDeviceSize debugMargin = GetDebugMargin();
++    VkDeviceSize misssingAlignment = offset - currentBlock->offset;
++
++    // Append missing alignment to prev block or create new one
++    if (misssingAlignment)
++    {
++        Block* prevBlock = currentBlock->prevPhysical;
++        VMA_ASSERT(prevBlock != VMA_NULL && "There should be no missing alignment at offset 0!");
++
++        if (prevBlock->IsFree() && prevBlock->size != debugMargin)
++        {
++            uint32_t oldList = GetListIndex(prevBlock->size);
++            prevBlock->size += misssingAlignment;
++            // Check if new size crosses list bucket
++            if (oldList != GetListIndex(prevBlock->size))
++            {
++                prevBlock->size -= misssingAlignment;
++                RemoveFreeBlock(prevBlock);
++                prevBlock->size += misssingAlignment;
++                InsertFreeBlock(prevBlock);
++            }
++            else
++                m_BlocksFreeSize += misssingAlignment;
++        }
++        else
++        {
++            Block* newBlock = m_BlockAllocator.Alloc();
++            currentBlock->prevPhysical = newBlock;
++            prevBlock->nextPhysical = newBlock;
++            newBlock->prevPhysical = prevBlock;
++            newBlock->nextPhysical = currentBlock;
++            newBlock->size = misssingAlignment;
++            newBlock->offset = currentBlock->offset;
++            newBlock->MarkTaken();
++
++            InsertFreeBlock(newBlock);
++        }
++
++        currentBlock->size -= misssingAlignment;
++        currentBlock->offset += misssingAlignment;
++    }
++
++    VkDeviceSize size = request.size + debugMargin;
++    if (currentBlock->size == size)
++    {
++        if (currentBlock == m_NullBlock)
++        {
++            // Setup new null block
++            m_NullBlock = m_BlockAllocator.Alloc();
++            m_NullBlock->size = 0;
++            m_NullBlock->offset = currentBlock->offset + size;
++            m_NullBlock->prevPhysical = currentBlock;
++            m_NullBlock->nextPhysical = VMA_NULL;
++            m_NullBlock->MarkFree();
++            m_NullBlock->PrevFree() = VMA_NULL;
++            m_NullBlock->NextFree() = VMA_NULL;
++            currentBlock->nextPhysical = m_NullBlock;
++            currentBlock->MarkTaken();
++        }
++    }
++    else
++    {
++        VMA_ASSERT(currentBlock->size > size && "Proper block already found, shouldn't find smaller one!");
++
++        // Create new free block
++        Block* newBlock = m_BlockAllocator.Alloc();
++        newBlock->size = currentBlock->size - size;
++        newBlock->offset = currentBlock->offset + size;
++        newBlock->prevPhysical = currentBlock;
++        newBlock->nextPhysical = currentBlock->nextPhysical;
++        currentBlock->nextPhysical = newBlock;
++        currentBlock->size = size;
++
++        if (currentBlock == m_NullBlock)
++        {
++            m_NullBlock = newBlock;
++            m_NullBlock->MarkFree();
++            m_NullBlock->NextFree() = VMA_NULL;
++            m_NullBlock->PrevFree() = VMA_NULL;
++            currentBlock->MarkTaken();
++        }
++        else
++        {
++            newBlock->nextPhysical->prevPhysical = newBlock;
++            newBlock->MarkTaken();
++            InsertFreeBlock(newBlock);
++        }
++    }
++    currentBlock->UserData() = userData;
++
++    if (debugMargin > 0)
++    {
++        currentBlock->size -= debugMargin;
++        Block* newBlock = m_BlockAllocator.Alloc();
++        newBlock->size = debugMargin;
++        newBlock->offset = currentBlock->offset + currentBlock->size;
++        newBlock->prevPhysical = currentBlock;
++        newBlock->nextPhysical = currentBlock->nextPhysical;
++        newBlock->MarkTaken();
++        currentBlock->nextPhysical->prevPhysical = newBlock;
++        currentBlock->nextPhysical = newBlock;
++        InsertFreeBlock(newBlock);
++    }
++
++    if (!IsVirtual())
++        m_GranularityHandler.AllocPages((uint8_t)(uintptr_t)request.customData,
++            currentBlock->offset, currentBlock->size);
++    ++m_AllocCount;
++}
++
++void VmaBlockMetadata_TLSF::Free(VmaAllocHandle allocHandle)
++{
++    Block* block = (Block*)allocHandle;
++    Block* next = block->nextPhysical;
++    VMA_ASSERT(!block->IsFree() && "Block is already free!");
++
++    if (!IsVirtual())
++        m_GranularityHandler.FreePages(block->offset, block->size);
++    --m_AllocCount;
++
++    VkDeviceSize debugMargin = GetDebugMargin();
++    if (debugMargin > 0)
++    {
++        RemoveFreeBlock(next);
++        MergeBlock(next, block);
++        block = next;
++        next = next->nextPhysical;
++    }
++
++    // Try merging
++    Block* prev = block->prevPhysical;
++    if (prev != VMA_NULL && prev->IsFree() && prev->size != debugMargin)
++    {
++        RemoveFreeBlock(prev);
++        MergeBlock(block, prev);
++    }
++
++    if (!next->IsFree())
++        InsertFreeBlock(block);
++    else if (next == m_NullBlock)
++        MergeBlock(m_NullBlock, block);
++    else
++    {
++        RemoveFreeBlock(next);
++        MergeBlock(next, block);
++        InsertFreeBlock(next);
++    }
++}
++
++void VmaBlockMetadata_TLSF::GetAllocationInfo(VmaAllocHandle allocHandle, VmaVirtualAllocationInfo& outInfo)
++{
++    Block* block = (Block*)allocHandle;
++    VMA_ASSERT(!block->IsFree() && "Cannot get allocation info for free block!");
++    outInfo.offset = block->offset;
++    outInfo.size = block->size;
++    outInfo.pUserData = block->UserData();
++}
++
++void* VmaBlockMetadata_TLSF::GetAllocationUserData(VmaAllocHandle allocHandle) const
++{
++    Block* block = (Block*)allocHandle;
++    VMA_ASSERT(!block->IsFree() && "Cannot get user data for free block!");
++    return block->UserData();
++}
++
++VmaAllocHandle VmaBlockMetadata_TLSF::GetAllocationListBegin() const
++{
++    if (m_AllocCount == 0)
++        return VK_NULL_HANDLE;
++
++    for (Block* block = m_NullBlock->prevPhysical; block; block = block->prevPhysical)
++    {
++        if (!block->IsFree())
++            return (VmaAllocHandle)block;
++    }
++    VMA_ASSERT(false && "If m_AllocCount > 0 then should find any allocation!");
++    return VK_NULL_HANDLE;
++}
++
++VmaAllocHandle VmaBlockMetadata_TLSF::GetNextAllocation(VmaAllocHandle prevAlloc) const
++{
++    Block* startBlock = (Block*)prevAlloc;
++    VMA_ASSERT(!startBlock->IsFree() && "Incorrect block!");
++
++    for (Block* block = startBlock->prevPhysical; block; block = block->prevPhysical)
++    {
++        if (!block->IsFree())
++            return (VmaAllocHandle)block;
++    }
++    return VK_NULL_HANDLE;
++}
++
++VkDeviceSize VmaBlockMetadata_TLSF::GetNextFreeRegionSize(VmaAllocHandle alloc) const
++{
++    Block* block = (Block*)alloc;
++    VMA_ASSERT(!block->IsFree() && "Incorrect block!");
++
++    if (block->prevPhysical)
++        return block->prevPhysical->IsFree() ? block->prevPhysical->size : 0;
++    return 0;
++}
++
++void VmaBlockMetadata_TLSF::Clear()
++{
++    m_AllocCount = 0;
++    m_BlocksFreeCount = 0;
++    m_BlocksFreeSize = 0;
++    m_IsFreeBitmap = 0;
++    m_NullBlock->offset = 0;
++    m_NullBlock->size = GetSize();
++    Block* block = m_NullBlock->prevPhysical;
++    m_NullBlock->prevPhysical = VMA_NULL;
++    while (block)
++    {
++        Block* prev = block->prevPhysical;
++        m_BlockAllocator.Free(block);
++        block = prev;
++    }
++    memset(m_FreeList, 0, m_ListsCount * sizeof(Block*));
++    memset(m_InnerIsFreeBitmap, 0, m_MemoryClasses * sizeof(uint32_t));
++    m_GranularityHandler.Clear();
++}
++
++void VmaBlockMetadata_TLSF::SetAllocationUserData(VmaAllocHandle allocHandle, void* userData)
++{
++    Block* block = (Block*)allocHandle;
++    VMA_ASSERT(!block->IsFree() && "Trying to set user data for not allocated block!");
++    block->UserData() = userData;
++}
++
++void VmaBlockMetadata_TLSF::DebugLogAllAllocations() const
++{
++    for (Block* block = m_NullBlock->prevPhysical; block != VMA_NULL; block = block->prevPhysical)
++        if (!block->IsFree())
++            DebugLogAllocation(block->offset, block->size, block->UserData());
++}
++
++uint8_t VmaBlockMetadata_TLSF::SizeToMemoryClass(VkDeviceSize size) const
++{
++    if (size > SMALL_BUFFER_SIZE)
++        return VMA_BITSCAN_MSB(size) - MEMORY_CLASS_SHIFT;
++    return 0;
++}
++
++uint16_t VmaBlockMetadata_TLSF::SizeToSecondIndex(VkDeviceSize size, uint8_t memoryClass) const
++{
++    if (memoryClass == 0)
++    {
++        if (IsVirtual())
++            return static_cast<uint16_t>((size - 1) / 8);
++        else
++            return static_cast<uint16_t>((size - 1) / 64);
++    }
++    return static_cast<uint16_t>((size >> (memoryClass + MEMORY_CLASS_SHIFT - SECOND_LEVEL_INDEX)) ^ (1U << SECOND_LEVEL_INDEX));
++}
++
++uint32_t VmaBlockMetadata_TLSF::GetListIndex(uint8_t memoryClass, uint16_t secondIndex) const
++{
++    if (memoryClass == 0)
++        return secondIndex;
++
++    const uint32_t index = static_cast<uint32_t>(memoryClass - 1) * (1 << SECOND_LEVEL_INDEX) + secondIndex;
++    if (IsVirtual())
++        return index + (1 << SECOND_LEVEL_INDEX);
++    else
++        return index + 4;
++}
++
++uint32_t VmaBlockMetadata_TLSF::GetListIndex(VkDeviceSize size) const
++{
++    uint8_t memoryClass = SizeToMemoryClass(size);
++    return GetListIndex(memoryClass, SizeToSecondIndex(size, memoryClass));
++}
++
++void VmaBlockMetadata_TLSF::RemoveFreeBlock(Block* block)
++{
++    VMA_ASSERT(block != m_NullBlock);
++    VMA_ASSERT(block->IsFree());
++
++    if (block->NextFree() != VMA_NULL)
++        block->NextFree()->PrevFree() = block->PrevFree();
++    if (block->PrevFree() != VMA_NULL)
++        block->PrevFree()->NextFree() = block->NextFree();
++    else
++    {
++        uint8_t memClass = SizeToMemoryClass(block->size);
++        uint16_t secondIndex = SizeToSecondIndex(block->size, memClass);
++        uint32_t index = GetListIndex(memClass, secondIndex);
++        VMA_ASSERT(m_FreeList[index] == block);
++        m_FreeList[index] = block->NextFree();
++        if (block->NextFree() == VMA_NULL)
++        {
++            m_InnerIsFreeBitmap[memClass] &= ~(1U << secondIndex);
++            if (m_InnerIsFreeBitmap[memClass] == 0)
++                m_IsFreeBitmap &= ~(1UL << memClass);
++        }
++    }
++    block->MarkTaken();
++    block->UserData() = VMA_NULL;
++    --m_BlocksFreeCount;
++    m_BlocksFreeSize -= block->size;
++}
++
++void VmaBlockMetadata_TLSF::InsertFreeBlock(Block* block)
++{
++    VMA_ASSERT(block != m_NullBlock);
++    VMA_ASSERT(!block->IsFree() && "Cannot insert block twice!");
++
++    uint8_t memClass = SizeToMemoryClass(block->size);
++    uint16_t secondIndex = SizeToSecondIndex(block->size, memClass);
++    uint32_t index = GetListIndex(memClass, secondIndex);
++    VMA_ASSERT(index < m_ListsCount);
++    block->PrevFree() = VMA_NULL;
++    block->NextFree() = m_FreeList[index];
++    m_FreeList[index] = block;
++    if (block->NextFree() != VMA_NULL)
++        block->NextFree()->PrevFree() = block;
++    else
++    {
++        m_InnerIsFreeBitmap[memClass] |= 1U << secondIndex;
++        m_IsFreeBitmap |= 1UL << memClass;
++    }
++    ++m_BlocksFreeCount;
++    m_BlocksFreeSize += block->size;
++}
++
++void VmaBlockMetadata_TLSF::MergeBlock(Block* block, Block* prev)
++{
++    VMA_ASSERT(block->prevPhysical == prev && "Cannot merge seperate physical regions!");
++    VMA_ASSERT(!prev->IsFree() && "Cannot merge block that belongs to free list!");
++
++    block->offset = prev->offset;
++    block->size += prev->size;
++    block->prevPhysical = prev->prevPhysical;
++    if (block->prevPhysical)
++        block->prevPhysical->nextPhysical = block;
++    m_BlockAllocator.Free(prev);
++}
++
++VmaBlockMetadata_TLSF::Block* VmaBlockMetadata_TLSF::FindFreeBlock(VkDeviceSize size, uint32_t& listIndex) const
++{
++    uint8_t memoryClass = SizeToMemoryClass(size);
++    uint32_t innerFreeMap = m_InnerIsFreeBitmap[memoryClass] & (~0U << SizeToSecondIndex(size, memoryClass));
++    if (!innerFreeMap)
++    {
++        // Check higher levels for avaiable blocks
++        uint32_t freeMap = m_IsFreeBitmap & (~0UL << (memoryClass + 1));
++        if (!freeMap)
++            return VMA_NULL; // No more memory avaible
++
++        // Find lowest free region
++        memoryClass = VMA_BITSCAN_LSB(freeMap);
++        innerFreeMap = m_InnerIsFreeBitmap[memoryClass];
++        VMA_ASSERT(innerFreeMap != 0);
++    }
++    // Find lowest free subregion
++    listIndex = GetListIndex(memoryClass, VMA_BITSCAN_LSB(innerFreeMap));
++    VMA_ASSERT(m_FreeList[listIndex]);
++    return m_FreeList[listIndex];
++}
++
++bool VmaBlockMetadata_TLSF::CheckBlock(
++    Block& block,
++    uint32_t listIndex,
++    VkDeviceSize allocSize,
++    VkDeviceSize allocAlignment,
++    VmaSuballocationType allocType,
++    VmaAllocationRequest* pAllocationRequest)
++{
++    VMA_ASSERT(block.IsFree() && "Block is already taken!");
++
++    VkDeviceSize alignedOffset = VmaAlignUp(block.offset, allocAlignment);
++    if (block.size < allocSize + alignedOffset - block.offset)
++        return false;
++
++    // Check for granularity conflicts
++    if (!IsVirtual() &&
++        m_GranularityHandler.CheckConflictAndAlignUp(alignedOffset, allocSize, block.offset, block.size, allocType))
++        return false;
++
++    // Alloc successful
++    pAllocationRequest->type = VmaAllocationRequestType::TLSF;
++    pAllocationRequest->allocHandle = (VmaAllocHandle)&block;
++    pAllocationRequest->size = allocSize - GetDebugMargin();
++    pAllocationRequest->customData = (void*)allocType;
++    pAllocationRequest->algorithmData = alignedOffset;
++
++    // Place block at the start of list if it's normal block
++    if (listIndex != m_ListsCount && block.PrevFree())
++    {
++        block.PrevFree()->NextFree() = block.NextFree();
++        if (block.NextFree())
++            block.NextFree()->PrevFree() = block.PrevFree();
++        block.PrevFree() = VMA_NULL;
++        block.NextFree() = m_FreeList[listIndex];
++        m_FreeList[listIndex] = &block;
++        if (block.NextFree())
++            block.NextFree()->PrevFree() = &block;
++    }
++
++    return true;
++}
++#endif // _VMA_BLOCK_METADATA_TLSF_FUNCTIONS
++#endif // _VMA_BLOCK_METADATA_TLSF
++
++#ifndef _VMA_BLOCK_VECTOR
++/*
++Sequence of VmaDeviceMemoryBlock. Represents memory blocks allocated for a specific
++Vulkan memory type.
++
++Synchronized internally with a mutex.
++*/
++class VmaBlockVector
++{
++    friend struct VmaDefragmentationContext_T;
++    VMA_CLASS_NO_COPY(VmaBlockVector)
++public:
++    VmaBlockVector(
++        VmaAllocator hAllocator,
++        VmaPool hParentPool,
++        uint32_t memoryTypeIndex,
++        VkDeviceSize preferredBlockSize,
++        size_t minBlockCount,
++        size_t maxBlockCount,
++        VkDeviceSize bufferImageGranularity,
++        bool explicitBlockSize,
++        uint32_t algorithm,
++        float priority,
++        VkDeviceSize minAllocationAlignment,
++        void* pMemoryAllocateNext);
++    ~VmaBlockVector();
++
++    VmaAllocator GetAllocator() const { return m_hAllocator; }
++    VmaPool GetParentPool() const { return m_hParentPool; }
++    bool IsCustomPool() const { return m_hParentPool != VMA_NULL; }
++    uint32_t GetMemoryTypeIndex() const { return m_MemoryTypeIndex; }
++    VkDeviceSize GetPreferredBlockSize() const { return m_PreferredBlockSize; }
++    VkDeviceSize GetBufferImageGranularity() const { return m_BufferImageGranularity; }
++    uint32_t GetAlgorithm() const { return m_Algorithm; }
++    bool HasExplicitBlockSize() const { return m_ExplicitBlockSize; }
++    float GetPriority() const { return m_Priority; }
++    const void* GetAllocationNextPtr() const { return m_pMemoryAllocateNext; }
++    // To be used only while the m_Mutex is locked. Used during defragmentation.
++    size_t GetBlockCount() const { return m_Blocks.size(); }
++    // To be used only while the m_Mutex is locked. Used during defragmentation.
++    VmaDeviceMemoryBlock* GetBlock(size_t index) const { return m_Blocks[index]; }
++    VMA_RW_MUTEX &GetMutex() { return m_Mutex; }
++
++    VkResult CreateMinBlocks();
++    void AddStatistics(VmaStatistics& inoutStats);
++    void AddDetailedStatistics(VmaDetailedStatistics& inoutStats);
++    bool IsEmpty();
++    bool IsCorruptionDetectionEnabled() const;
++
++    VkResult Allocate(
++        VkDeviceSize size,
++        VkDeviceSize alignment,
++        const VmaAllocationCreateInfo& createInfo,
++        VmaSuballocationType suballocType,
++        size_t allocationCount,
++        VmaAllocation* pAllocations);
++
++    void Free(const VmaAllocation hAllocation);
++
++#if VMA_STATS_STRING_ENABLED
++    void PrintDetailedMap(class VmaJsonWriter& json);
++#endif
++
++    VkResult CheckCorruption();
++
++private:
++    const VmaAllocator m_hAllocator;
++    const VmaPool m_hParentPool;
++    const uint32_t m_MemoryTypeIndex;
++    const VkDeviceSize m_PreferredBlockSize;
++    const size_t m_MinBlockCount;
++    const size_t m_MaxBlockCount;
++    const VkDeviceSize m_BufferImageGranularity;
++    const bool m_ExplicitBlockSize;
++    const uint32_t m_Algorithm;
++    const float m_Priority;
++    const VkDeviceSize m_MinAllocationAlignment;
++
++    void* const m_pMemoryAllocateNext;
++    VMA_RW_MUTEX m_Mutex;
++    // Incrementally sorted by sumFreeSize, ascending.
++    VmaVector<VmaDeviceMemoryBlock*, VmaStlAllocator<VmaDeviceMemoryBlock*>> m_Blocks;
++    uint32_t m_NextBlockId;
++    bool m_IncrementalSort = true;
++
++    void SetIncrementalSort(bool val) { m_IncrementalSort = val; }
++
++    VkDeviceSize CalcMaxBlockSize() const;
++    // Finds and removes given block from vector.
++    void Remove(VmaDeviceMemoryBlock* pBlock);
++    // Performs single step in sorting m_Blocks. They may not be fully sorted
++    // after this call.
++    void IncrementallySortBlocks();
++    void SortByFreeSize();
++
++    VkResult AllocatePage(
++        VkDeviceSize size,
++        VkDeviceSize alignment,
++        const VmaAllocationCreateInfo& createInfo,
++        VmaSuballocationType suballocType,
++        VmaAllocation* pAllocation);
++
++    VkResult AllocateFromBlock(
++        VmaDeviceMemoryBlock* pBlock,
++        VkDeviceSize size,
++        VkDeviceSize alignment,
++        VmaAllocationCreateFlags allocFlags,
++        void* pUserData,
++        VmaSuballocationType suballocType,
++        uint32_t strategy,
++        VmaAllocation* pAllocation);
++
++    VkResult CommitAllocationRequest(
++        VmaAllocationRequest& allocRequest,
++        VmaDeviceMemoryBlock* pBlock,
++        VkDeviceSize alignment,
++        VmaAllocationCreateFlags allocFlags,
++        void* pUserData,
++        VmaSuballocationType suballocType,
++        VmaAllocation* pAllocation);
++
++    VkResult CreateBlock(VkDeviceSize blockSize, size_t* pNewBlockIndex);
++    bool HasEmptyBlock();
++};
++#endif // _VMA_BLOCK_VECTOR
++
++#ifndef _VMA_DEFRAGMENTATION_CONTEXT
++struct VmaDefragmentationContext_T
++{
++    VMA_CLASS_NO_COPY(VmaDefragmentationContext_T)
++public:
++    VmaDefragmentationContext_T(
++        VmaAllocator hAllocator,
++        const VmaDefragmentationInfo& info);
++    ~VmaDefragmentationContext_T();
++
++    void GetStats(VmaDefragmentationStats& outStats) { outStats = m_GlobalStats; }
++
++    VkResult DefragmentPassBegin(VmaDefragmentationPassMoveInfo& moveInfo);
++    VkResult DefragmentPassEnd(VmaDefragmentationPassMoveInfo& moveInfo);
++
++private:
++    // Max number of allocations to ignore due to size constraints before ending single pass
++    static const uint8_t MAX_ALLOCS_TO_IGNORE = 16;
++    enum class CounterStatus { Pass, Ignore, End };
++
++    struct FragmentedBlock
++    {
++        uint32_t data;
++        VmaDeviceMemoryBlock* block;
++    };
++    struct StateBalanced
++    {
++        VkDeviceSize avgFreeSize = 0;
++        VkDeviceSize avgAllocSize = UINT64_MAX;
++    };
++    struct StateExtensive
++    {
++        enum class Operation : uint8_t
++        {
++            FindFreeBlockBuffer, FindFreeBlockTexture, FindFreeBlockAll,
++            MoveBuffers, MoveTextures, MoveAll,
++            Cleanup, Done
++        };
++
++        Operation operation = Operation::FindFreeBlockTexture;
++        size_t firstFreeBlock = SIZE_MAX;
++    };
++    struct MoveAllocationData
++    {
++        VkDeviceSize size;
++        VkDeviceSize alignment;
++        VmaSuballocationType type;
++        VmaAllocationCreateFlags flags;
++        VmaDefragmentationMove move = {};
++    };
++
++    const VkDeviceSize m_MaxPassBytes;
++    const uint32_t m_MaxPassAllocations;
++
++    VmaStlAllocator<VmaDefragmentationMove> m_MoveAllocator;
++    VmaVector<VmaDefragmentationMove, VmaStlAllocator<VmaDefragmentationMove>> m_Moves;
++
++    uint8_t m_IgnoredAllocs = 0;
++    uint32_t m_Algorithm;
++    uint32_t m_BlockVectorCount;
++    VmaBlockVector* m_PoolBlockVector;
++    VmaBlockVector** m_pBlockVectors;
++    size_t m_ImmovableBlockCount = 0;
++    VmaDefragmentationStats m_GlobalStats = { 0 };
++    VmaDefragmentationStats m_PassStats = { 0 };
++    void* m_AlgorithmState = VMA_NULL;
++
++    static MoveAllocationData GetMoveData(VmaAllocHandle handle, VmaBlockMetadata* metadata);
++    CounterStatus CheckCounters(VkDeviceSize bytes);
++    bool IncrementCounters(VkDeviceSize bytes);
++    bool ReallocWithinBlock(VmaBlockVector& vector, VmaDeviceMemoryBlock* block);
++    bool AllocInOtherBlock(size_t start, size_t end, MoveAllocationData& data, VmaBlockVector& vector);
++
++    bool ComputeDefragmentation(VmaBlockVector& vector, size_t index);
++    bool ComputeDefragmentation_Fast(VmaBlockVector& vector);
++    bool ComputeDefragmentation_Balanced(VmaBlockVector& vector, size_t index, bool update);
++    bool ComputeDefragmentation_Full(VmaBlockVector& vector);
++    bool ComputeDefragmentation_Extensive(VmaBlockVector& vector, size_t index);
++
++    void UpdateVectorStatistics(VmaBlockVector& vector, StateBalanced& state);
++    bool MoveDataToFreeBlocks(VmaSuballocationType currentType,
++        VmaBlockVector& vector, size_t firstFreeBlock,
++        bool& texturePresent, bool& bufferPresent, bool& otherPresent);
++};
++#endif // _VMA_DEFRAGMENTATION_CONTEXT
++
++#ifndef _VMA_POOL_T
++struct VmaPool_T
++{
++    friend struct VmaPoolListItemTraits;
++    VMA_CLASS_NO_COPY(VmaPool_T)
++public:
++    VmaBlockVector m_BlockVector;
++    VmaDedicatedAllocationList m_DedicatedAllocations;
++
++    VmaPool_T(
++        VmaAllocator hAllocator,
++        const VmaPoolCreateInfo& createInfo,
++        VkDeviceSize preferredBlockSize);
++    ~VmaPool_T();
++
++    uint32_t GetId() const { return m_Id; }
++    void SetId(uint32_t id) { VMA_ASSERT(m_Id == 0); m_Id = id; }
++
++    const char* GetName() const { return m_Name; }
++    void SetName(const char* pName);
++
++#if VMA_STATS_STRING_ENABLED
++    //void PrintDetailedMap(class VmaStringBuilder& sb);
++#endif
++
++private:
++    uint32_t m_Id;
++    char* m_Name;
++    VmaPool_T* m_PrevPool = VMA_NULL;
++    VmaPool_T* m_NextPool = VMA_NULL;
++};
++
++struct VmaPoolListItemTraits
++{
++    typedef VmaPool_T ItemType;
++
++    static ItemType* GetPrev(const ItemType* item) { return item->m_PrevPool; }
++    static ItemType* GetNext(const ItemType* item) { return item->m_NextPool; }
++    static ItemType*& AccessPrev(ItemType* item) { return item->m_PrevPool; }
++    static ItemType*& AccessNext(ItemType* item) { return item->m_NextPool; }
++};
++#endif // _VMA_POOL_T
++
++#ifndef _VMA_CURRENT_BUDGET_DATA
++struct VmaCurrentBudgetData
++{
++    VMA_ATOMIC_UINT32 m_BlockCount[VK_MAX_MEMORY_HEAPS];
++    VMA_ATOMIC_UINT32 m_AllocationCount[VK_MAX_MEMORY_HEAPS];
++    VMA_ATOMIC_UINT64 m_BlockBytes[VK_MAX_MEMORY_HEAPS];
++    VMA_ATOMIC_UINT64 m_AllocationBytes[VK_MAX_MEMORY_HEAPS];
++
++#if VMA_MEMORY_BUDGET
++    VMA_ATOMIC_UINT32 m_OperationsSinceBudgetFetch;
++    VMA_RW_MUTEX m_BudgetMutex;
++    uint64_t m_VulkanUsage[VK_MAX_MEMORY_HEAPS];
++    uint64_t m_VulkanBudget[VK_MAX_MEMORY_HEAPS];
++    uint64_t m_BlockBytesAtBudgetFetch[VK_MAX_MEMORY_HEAPS];
++#endif // VMA_MEMORY_BUDGET
++
++    VmaCurrentBudgetData();
++
++    void AddAllocation(uint32_t heapIndex, VkDeviceSize allocationSize);
++    void RemoveAllocation(uint32_t heapIndex, VkDeviceSize allocationSize);
++};
++
++#ifndef _VMA_CURRENT_BUDGET_DATA_FUNCTIONS
++VmaCurrentBudgetData::VmaCurrentBudgetData()
++{
++    for (uint32_t heapIndex = 0; heapIndex < VK_MAX_MEMORY_HEAPS; ++heapIndex)
++    {
++        m_BlockCount[heapIndex] = 0;
++        m_AllocationCount[heapIndex] = 0;
++        m_BlockBytes[heapIndex] = 0;
++        m_AllocationBytes[heapIndex] = 0;
++#if VMA_MEMORY_BUDGET
++        m_VulkanUsage[heapIndex] = 0;
++        m_VulkanBudget[heapIndex] = 0;
++        m_BlockBytesAtBudgetFetch[heapIndex] = 0;
++#endif
++    }
++
++#if VMA_MEMORY_BUDGET
++    m_OperationsSinceBudgetFetch = 0;
++#endif
++}
++
++void VmaCurrentBudgetData::AddAllocation(uint32_t heapIndex, VkDeviceSize allocationSize)
++{
++    m_AllocationBytes[heapIndex] += allocationSize;
++    ++m_AllocationCount[heapIndex];
++#if VMA_MEMORY_BUDGET
++    ++m_OperationsSinceBudgetFetch;
++#endif
++}
++
++void VmaCurrentBudgetData::RemoveAllocation(uint32_t heapIndex, VkDeviceSize allocationSize)
++{
++    VMA_ASSERT(m_AllocationBytes[heapIndex] >= allocationSize);
++    m_AllocationBytes[heapIndex] -= allocationSize;
++    VMA_ASSERT(m_AllocationCount[heapIndex] > 0);
++    --m_AllocationCount[heapIndex];
++#if VMA_MEMORY_BUDGET
++    ++m_OperationsSinceBudgetFetch;
++#endif
++}
++#endif // _VMA_CURRENT_BUDGET_DATA_FUNCTIONS
++#endif // _VMA_CURRENT_BUDGET_DATA
++
++#ifndef _VMA_ALLOCATION_OBJECT_ALLOCATOR
++/*
++Thread-safe wrapper over VmaPoolAllocator free list, for allocation of VmaAllocation_T objects.
++*/
++class VmaAllocationObjectAllocator
++{
++    VMA_CLASS_NO_COPY(VmaAllocationObjectAllocator)
++public:
++    VmaAllocationObjectAllocator(const VkAllocationCallbacks* pAllocationCallbacks)
++        : m_Allocator(pAllocationCallbacks, 1024) {}
++
++    template<typename... Types> VmaAllocation Allocate(Types&&... args);
++    void Free(VmaAllocation hAlloc);
++
++private:
++    VMA_MUTEX m_Mutex;
++    VmaPoolAllocator<VmaAllocation_T> m_Allocator;
++};
++
++template<typename... Types>
++VmaAllocation VmaAllocationObjectAllocator::Allocate(Types&&... args)
++{
++    VmaMutexLock mutexLock(m_Mutex);
++    return m_Allocator.Alloc<Types...>(std::forward<Types>(args)...);
++}
++
++void VmaAllocationObjectAllocator::Free(VmaAllocation hAlloc)
++{
++    VmaMutexLock mutexLock(m_Mutex);
++    m_Allocator.Free(hAlloc);
++}
++#endif // _VMA_ALLOCATION_OBJECT_ALLOCATOR
++
++#ifndef _VMA_VIRTUAL_BLOCK_T
++struct VmaVirtualBlock_T
++{
++    VMA_CLASS_NO_COPY(VmaVirtualBlock_T)
++public:
++    const bool m_AllocationCallbacksSpecified;
++    const VkAllocationCallbacks m_AllocationCallbacks;
++
++    VmaVirtualBlock_T(const VmaVirtualBlockCreateInfo& createInfo);
++    ~VmaVirtualBlock_T();
++
++    VkResult Init() { return VK_SUCCESS; }
++    bool IsEmpty() const { return m_Metadata->IsEmpty(); }
++    void Free(VmaVirtualAllocation allocation) { m_Metadata->Free((VmaAllocHandle)allocation); }
++    void SetAllocationUserData(VmaVirtualAllocation allocation, void* userData) { m_Metadata->SetAllocationUserData((VmaAllocHandle)allocation, userData); }
++    void Clear() { m_Metadata->Clear(); }
++
++    const VkAllocationCallbacks* GetAllocationCallbacks() const;
++    void GetAllocationInfo(VmaVirtualAllocation allocation, VmaVirtualAllocationInfo& outInfo);
++    VkResult Allocate(const VmaVirtualAllocationCreateInfo& createInfo, VmaVirtualAllocation& outAllocation,
++        VkDeviceSize* outOffset);
++    void GetStatistics(VmaStatistics& outStats) const;
++    void CalculateDetailedStatistics(VmaDetailedStatistics& outStats) const;
++#if VMA_STATS_STRING_ENABLED
++    void BuildStatsString(bool detailedMap, VmaStringBuilder& sb) const;
++#endif
++
++private:
++    VmaBlockMetadata* m_Metadata;
++};
++
++#ifndef _VMA_VIRTUAL_BLOCK_T_FUNCTIONS
++VmaVirtualBlock_T::VmaVirtualBlock_T(const VmaVirtualBlockCreateInfo& createInfo)
++    : m_AllocationCallbacksSpecified(createInfo.pAllocationCallbacks != VMA_NULL),
++    m_AllocationCallbacks(createInfo.pAllocationCallbacks != VMA_NULL ? *createInfo.pAllocationCallbacks : VmaEmptyAllocationCallbacks)
++{
++    const uint32_t algorithm = createInfo.flags & VMA_VIRTUAL_BLOCK_CREATE_ALGORITHM_MASK;
++    switch (algorithm)
++    {
++    default:
++        VMA_ASSERT(0);
++    case 0:
++        m_Metadata = vma_new(GetAllocationCallbacks(), VmaBlockMetadata_TLSF)(VK_NULL_HANDLE, 1, true);
++        break;
++    case VMA_VIRTUAL_BLOCK_CREATE_LINEAR_ALGORITHM_BIT:
++        m_Metadata = vma_new(GetAllocationCallbacks(), VmaBlockMetadata_Linear)(VK_NULL_HANDLE, 1, true);
++        break;
++    }
++
++    m_Metadata->Init(createInfo.size);
++}
++
++VmaVirtualBlock_T::~VmaVirtualBlock_T()
++{
++    // Define macro VMA_DEBUG_LOG to receive the list of the unfreed allocations
++    if (!m_Metadata->IsEmpty())
++        m_Metadata->DebugLogAllAllocations();
++    // This is the most important assert in the entire library.
++    // Hitting it means you have some memory leak - unreleased virtual allocations.
++    VMA_ASSERT(m_Metadata->IsEmpty() && "Some virtual allocations were not freed before destruction of this virtual block!");
++
++    vma_delete(GetAllocationCallbacks(), m_Metadata);
++}
++
++const VkAllocationCallbacks* VmaVirtualBlock_T::GetAllocationCallbacks() const
++{
++    return m_AllocationCallbacksSpecified ? &m_AllocationCallbacks : VMA_NULL;
++}
++
++void VmaVirtualBlock_T::GetAllocationInfo(VmaVirtualAllocation allocation, VmaVirtualAllocationInfo& outInfo)
++{
++    m_Metadata->GetAllocationInfo((VmaAllocHandle)allocation, outInfo);
++}
++
++VkResult VmaVirtualBlock_T::Allocate(const VmaVirtualAllocationCreateInfo& createInfo, VmaVirtualAllocation& outAllocation,
++    VkDeviceSize* outOffset)
++{
++    VmaAllocationRequest request = {};
++    if (m_Metadata->CreateAllocationRequest(
++        createInfo.size, // allocSize
++        VMA_MAX(createInfo.alignment, (VkDeviceSize)1), // allocAlignment
++        (createInfo.flags & VMA_VIRTUAL_ALLOCATION_CREATE_UPPER_ADDRESS_BIT) != 0, // upperAddress
++        VMA_SUBALLOCATION_TYPE_UNKNOWN, // allocType - unimportant
++        createInfo.flags & VMA_VIRTUAL_ALLOCATION_CREATE_STRATEGY_MASK, // strategy
++        &request))
++    {
++        m_Metadata->Alloc(request,
++            VMA_SUBALLOCATION_TYPE_UNKNOWN, // type - unimportant
++            createInfo.pUserData);
++        outAllocation = (VmaVirtualAllocation)request.allocHandle;
++        if(outOffset)
++            *outOffset = m_Metadata->GetAllocationOffset(request.allocHandle);
++        return VK_SUCCESS;
++    }
++    outAllocation = (VmaVirtualAllocation)VK_NULL_HANDLE;
++    if (outOffset)
++        *outOffset = UINT64_MAX;
++    return VK_ERROR_OUT_OF_DEVICE_MEMORY;
++}
++
++void VmaVirtualBlock_T::GetStatistics(VmaStatistics& outStats) const
++{
++    VmaClearStatistics(outStats);
++    m_Metadata->AddStatistics(outStats);
++}
++
++void VmaVirtualBlock_T::CalculateDetailedStatistics(VmaDetailedStatistics& outStats) const
++{
++    VmaClearDetailedStatistics(outStats);
++    m_Metadata->AddDetailedStatistics(outStats);
++}
++
++#if VMA_STATS_STRING_ENABLED
++void VmaVirtualBlock_T::BuildStatsString(bool detailedMap, VmaStringBuilder& sb) const
++{
++    VmaJsonWriter json(GetAllocationCallbacks(), sb);
++    json.BeginObject();
++
++    VmaDetailedStatistics stats;
++    CalculateDetailedStatistics(stats);
++
++    json.WriteString("Stats");
++    VmaPrintDetailedStatistics(json, stats);
++
++    if (detailedMap)
++    {
++        json.WriteString("Details");
++        json.BeginObject();
++        m_Metadata->PrintDetailedMap(json);
++        json.EndObject();
++    }
++
++    json.EndObject();
++}
++#endif // VMA_STATS_STRING_ENABLED
++#endif // _VMA_VIRTUAL_BLOCK_T_FUNCTIONS
++#endif // _VMA_VIRTUAL_BLOCK_T
++
++
++// Main allocator object.
++struct VmaAllocator_T
++{
++    VMA_CLASS_NO_COPY(VmaAllocator_T)
++public:
++    bool m_UseMutex;
++    uint32_t m_VulkanApiVersion;
++    bool m_UseKhrDedicatedAllocation; // Can be set only if m_VulkanApiVersion < VK_MAKE_VERSION(1, 1, 0).
++    bool m_UseKhrBindMemory2; // Can be set only if m_VulkanApiVersion < VK_MAKE_VERSION(1, 1, 0).
++    bool m_UseExtMemoryBudget;
++    bool m_UseAmdDeviceCoherentMemory;
++    bool m_UseKhrBufferDeviceAddress;
++    bool m_UseExtMemoryPriority;
++    VkDevice m_hDevice;
++    VkInstance m_hInstance;
++    bool m_AllocationCallbacksSpecified;
++    VkAllocationCallbacks m_AllocationCallbacks;
++    VmaDeviceMemoryCallbacks m_DeviceMemoryCallbacks;
++    VmaAllocationObjectAllocator m_AllocationObjectAllocator;
++
++    // Each bit (1 << i) is set if HeapSizeLimit is enabled for that heap, so cannot allocate more than the heap size.
++    uint32_t m_HeapSizeLimitMask;
++
++    VkPhysicalDeviceProperties m_PhysicalDeviceProperties;
++    VkPhysicalDeviceMemoryProperties m_MemProps;
++
++    // Default pools.
++    VmaBlockVector* m_pBlockVectors[VK_MAX_MEMORY_TYPES];
++    VmaDedicatedAllocationList m_DedicatedAllocations[VK_MAX_MEMORY_TYPES];
++
++    VmaCurrentBudgetData m_Budget;
++    VMA_ATOMIC_UINT32 m_DeviceMemoryCount; // Total number of VkDeviceMemory objects.
++
++    VmaAllocator_T(const VmaAllocatorCreateInfo* pCreateInfo);
++    VkResult Init(const VmaAllocatorCreateInfo* pCreateInfo);
++    ~VmaAllocator_T();
++
++    const VkAllocationCallbacks* GetAllocationCallbacks() const
++    {
++        return m_AllocationCallbacksSpecified ? &m_AllocationCallbacks : VMA_NULL;
++    }
++    const VmaVulkanFunctions& GetVulkanFunctions() const
++    {
++        return m_VulkanFunctions;
++    }
++
++    VkPhysicalDevice GetPhysicalDevice() const { return m_PhysicalDevice; }
++
++    VkDeviceSize GetBufferImageGranularity() const
++    {
++        return VMA_MAX(
++            static_cast<VkDeviceSize>(VMA_DEBUG_MIN_BUFFER_IMAGE_GRANULARITY),
++            m_PhysicalDeviceProperties.limits.bufferImageGranularity);
++    }
++
++    uint32_t GetMemoryHeapCount() const { return m_MemProps.memoryHeapCount; }
++    uint32_t GetMemoryTypeCount() const { return m_MemProps.memoryTypeCount; }
++
++    uint32_t MemoryTypeIndexToHeapIndex(uint32_t memTypeIndex) const
++    {
++        VMA_ASSERT(memTypeIndex < m_MemProps.memoryTypeCount);
++        return m_MemProps.memoryTypes[memTypeIndex].heapIndex;
++    }
++    // True when specific memory type is HOST_VISIBLE but not HOST_COHERENT.
++    bool IsMemoryTypeNonCoherent(uint32_t memTypeIndex) const
++    {
++        return (m_MemProps.memoryTypes[memTypeIndex].propertyFlags & (VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT)) ==
++            VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT;
++    }
++    // Minimum alignment for all allocations in specific memory type.
++    VkDeviceSize GetMemoryTypeMinAlignment(uint32_t memTypeIndex) const
++    {
++        return IsMemoryTypeNonCoherent(memTypeIndex) ?
++            VMA_MAX((VkDeviceSize)VMA_MIN_ALIGNMENT, m_PhysicalDeviceProperties.limits.nonCoherentAtomSize) :
++            (VkDeviceSize)VMA_MIN_ALIGNMENT;
++    }
++
++    bool IsIntegratedGpu() const
++    {
++        return m_PhysicalDeviceProperties.deviceType == VK_PHYSICAL_DEVICE_TYPE_INTEGRATED_GPU;
++    }
++
++    uint32_t GetGlobalMemoryTypeBits() const { return m_GlobalMemoryTypeBits; }
++
++    void GetBufferMemoryRequirements(
++        VkBuffer hBuffer,
++        VkMemoryRequirements& memReq,
++        bool& requiresDedicatedAllocation,
++        bool& prefersDedicatedAllocation) const;
++    void GetImageMemoryRequirements(
++        VkImage hImage,
++        VkMemoryRequirements& memReq,
++        bool& requiresDedicatedAllocation,
++        bool& prefersDedicatedAllocation) const;
++    VkResult FindMemoryTypeIndex(
++        uint32_t memoryTypeBits,
++        const VmaAllocationCreateInfo* pAllocationCreateInfo,
++        VkFlags bufImgUsage, // VkBufferCreateInfo::usage or VkImageCreateInfo::usage. UINT32_MAX if unknown.
++        uint32_t* pMemoryTypeIndex) const;
++
++    // Main allocation function.
++    VkResult AllocateMemory(
++        const VkMemoryRequirements& vkMemReq,
++        bool requiresDedicatedAllocation,
++        bool prefersDedicatedAllocation,
++        VkBuffer dedicatedBuffer,
++        VkImage dedicatedImage,
++        VkFlags dedicatedBufferImageUsage, // UINT32_MAX if unknown.
++        const VmaAllocationCreateInfo& createInfo,
++        VmaSuballocationType suballocType,
++        size_t allocationCount,
++        VmaAllocation* pAllocations);
++
++    // Main deallocation function.
++    void FreeMemory(
++        size_t allocationCount,
++        const VmaAllocation* pAllocations);
++
++    void CalculateStatistics(VmaTotalStatistics* pStats);
++
++    void GetHeapBudgets(
++        VmaBudget* outBudgets, uint32_t firstHeap, uint32_t heapCount);
++
++#if VMA_STATS_STRING_ENABLED
++    void PrintDetailedMap(class VmaJsonWriter& json);
++#endif
++
++    void GetAllocationInfo(VmaAllocation hAllocation, VmaAllocationInfo* pAllocationInfo);
++
++    VkResult CreatePool(const VmaPoolCreateInfo* pCreateInfo, VmaPool* pPool);
++    void DestroyPool(VmaPool pool);
++    void GetPoolStatistics(VmaPool pool, VmaStatistics* pPoolStats);
++    void CalculatePoolStatistics(VmaPool pool, VmaDetailedStatistics* pPoolStats);
++
++    void SetCurrentFrameIndex(uint32_t frameIndex);
++    uint32_t GetCurrentFrameIndex() const { return m_CurrentFrameIndex.load(); }
++
++    VkResult CheckPoolCorruption(VmaPool hPool);
++    VkResult CheckCorruption(uint32_t memoryTypeBits);
++
++    // Call to Vulkan function vkAllocateMemory with accompanying bookkeeping.
++    VkResult AllocateVulkanMemory(const VkMemoryAllocateInfo* pAllocateInfo, VkDeviceMemory* pMemory);
++    // Call to Vulkan function vkFreeMemory with accompanying bookkeeping.
++    void FreeVulkanMemory(uint32_t memoryType, VkDeviceSize size, VkDeviceMemory hMemory);
++    // Call to Vulkan function vkBindBufferMemory or vkBindBufferMemory2KHR.
++    VkResult BindVulkanBuffer(
++        VkDeviceMemory memory,
++        VkDeviceSize memoryOffset,
++        VkBuffer buffer,
++        const void* pNext);
++    // Call to Vulkan function vkBindImageMemory or vkBindImageMemory2KHR.
++    VkResult BindVulkanImage(
++        VkDeviceMemory memory,
++        VkDeviceSize memoryOffset,
++        VkImage image,
++        const void* pNext);
++
++    VkResult Map(VmaAllocation hAllocation, void** ppData);
++    void Unmap(VmaAllocation hAllocation);
++
++    VkResult BindBufferMemory(
++        VmaAllocation hAllocation,
++        VkDeviceSize allocationLocalOffset,
++        VkBuffer hBuffer,
++        const void* pNext);
++    VkResult BindImageMemory(
++        VmaAllocation hAllocation,
++        VkDeviceSize allocationLocalOffset,
++        VkImage hImage,
++        const void* pNext);
++
++    VkResult FlushOrInvalidateAllocation(
++        VmaAllocation hAllocation,
++        VkDeviceSize offset, VkDeviceSize size,
++        VMA_CACHE_OPERATION op);
++    VkResult FlushOrInvalidateAllocations(
++        uint32_t allocationCount,
++        const VmaAllocation* allocations,
++        const VkDeviceSize* offsets, const VkDeviceSize* sizes,
++        VMA_CACHE_OPERATION op);
++
++    void FillAllocation(const VmaAllocation hAllocation, uint8_t pattern);
++
++    /*
++    Returns bit mask of memory types that can support defragmentation on GPU as
++    they support creation of required buffer for copy operations.
++    */
++    uint32_t GetGpuDefragmentationMemoryTypeBits();
++
++#if VMA_EXTERNAL_MEMORY
++    VkExternalMemoryHandleTypeFlagsKHR GetExternalMemoryHandleTypeFlags(uint32_t memTypeIndex) const
++    {
++        return m_TypeExternalMemoryHandleTypes[memTypeIndex];
++    }
++#endif // #if VMA_EXTERNAL_MEMORY
++
++private:
++    VkDeviceSize m_PreferredLargeHeapBlockSize;
++
++    VkPhysicalDevice m_PhysicalDevice;
++    VMA_ATOMIC_UINT32 m_CurrentFrameIndex;
++    VMA_ATOMIC_UINT32 m_GpuDefragmentationMemoryTypeBits; // UINT32_MAX means uninitialized.
++#if VMA_EXTERNAL_MEMORY
++    VkExternalMemoryHandleTypeFlagsKHR m_TypeExternalMemoryHandleTypes[VK_MAX_MEMORY_TYPES];
++#endif // #if VMA_EXTERNAL_MEMORY
++
++    VMA_RW_MUTEX m_PoolsMutex;
++    typedef VmaIntrusiveLinkedList<VmaPoolListItemTraits> PoolList;
++    // Protected by m_PoolsMutex.
++    PoolList m_Pools;
++    uint32_t m_NextPoolId;
++
++    VmaVulkanFunctions m_VulkanFunctions;
++
++    // Global bit mask AND-ed with any memoryTypeBits to disallow certain memory types.
++    uint32_t m_GlobalMemoryTypeBits;
++
++    void ImportVulkanFunctions(const VmaVulkanFunctions* pVulkanFunctions);
++
++#if VMA_STATIC_VULKAN_FUNCTIONS == 1
++    void ImportVulkanFunctions_Static();
++#endif
++
++    void ImportVulkanFunctions_Custom(const VmaVulkanFunctions* pVulkanFunctions);
++
++#if VMA_DYNAMIC_VULKAN_FUNCTIONS == 1
++    void ImportVulkanFunctions_Dynamic();
++#endif
++
++    void ValidateVulkanFunctions();
++
++    VkDeviceSize CalcPreferredBlockSize(uint32_t memTypeIndex);
++
++    VkResult AllocateMemoryOfType(
++        VmaPool pool,
++        VkDeviceSize size,
++        VkDeviceSize alignment,
++        bool dedicatedPreferred,
++        VkBuffer dedicatedBuffer,
++        VkImage dedicatedImage,
++        VkFlags dedicatedBufferImageUsage,
++        const VmaAllocationCreateInfo& createInfo,
++        uint32_t memTypeIndex,
++        VmaSuballocationType suballocType,
++        VmaDedicatedAllocationList& dedicatedAllocations,
++        VmaBlockVector& blockVector,
++        size_t allocationCount,
++        VmaAllocation* pAllocations);
++
++    // Helper function only to be used inside AllocateDedicatedMemory.
++    VkResult AllocateDedicatedMemoryPage(
++        VmaPool pool,
++        VkDeviceSize size,
++        VmaSuballocationType suballocType,
++        uint32_t memTypeIndex,
++        const VkMemoryAllocateInfo& allocInfo,
++        bool map,
++        bool isUserDataString,
++        bool isMappingAllowed,
++        void* pUserData,
++        VmaAllocation* pAllocation);
++
++    // Allocates and registers new VkDeviceMemory specifically for dedicated allocations.
++    VkResult AllocateDedicatedMemory(
++        VmaPool pool,
++        VkDeviceSize size,
++        VmaSuballocationType suballocType,
++        VmaDedicatedAllocationList& dedicatedAllocations,
++        uint32_t memTypeIndex,
++        bool map,
++        bool isUserDataString,
++        bool isMappingAllowed,
++        bool canAliasMemory,
++        void* pUserData,
++        float priority,
++        VkBuffer dedicatedBuffer,
++        VkImage dedicatedImage,
++        VkFlags dedicatedBufferImageUsage,
++        size_t allocationCount,
++        VmaAllocation* pAllocations,
++        const void* pNextChain = nullptr);
++
++    void FreeDedicatedMemory(const VmaAllocation allocation);
++
++    VkResult CalcMemTypeParams(
++        VmaAllocationCreateInfo& outCreateInfo,
++        uint32_t memTypeIndex,
++        VkDeviceSize size,
++        size_t allocationCount);
++    VkResult CalcAllocationParams(
++        VmaAllocationCreateInfo& outCreateInfo,
++        bool dedicatedRequired,
++        bool dedicatedPreferred);
++
++    /*
++    Calculates and returns bit mask of memory types that can support defragmentation
++    on GPU as they support creation of required buffer for copy operations.
++    */
++    uint32_t CalculateGpuDefragmentationMemoryTypeBits() const;
++    uint32_t CalculateGlobalMemoryTypeBits() const;
++
++    bool GetFlushOrInvalidateRange(
++        VmaAllocation allocation,
++        VkDeviceSize offset, VkDeviceSize size,
++        VkMappedMemoryRange& outRange) const;
++
++#if VMA_MEMORY_BUDGET
++    void UpdateVulkanBudget();
++#endif // #if VMA_MEMORY_BUDGET
++};
++
++
++#ifndef _VMA_MEMORY_FUNCTIONS
++static void* VmaMalloc(VmaAllocator hAllocator, size_t size, size_t alignment)
++{
++    return VmaMalloc(&hAllocator->m_AllocationCallbacks, size, alignment);
++}
++
++static void VmaFree(VmaAllocator hAllocator, void* ptr)
++{
++    VmaFree(&hAllocator->m_AllocationCallbacks, ptr);
++}
++
++template<typename T>
++static T* VmaAllocate(VmaAllocator hAllocator)
++{
++    return (T*)VmaMalloc(hAllocator, sizeof(T), VMA_ALIGN_OF(T));
++}
++
++template<typename T>
++static T* VmaAllocateArray(VmaAllocator hAllocator, size_t count)
++{
++    return (T*)VmaMalloc(hAllocator, sizeof(T) * count, VMA_ALIGN_OF(T));
++}
++
++template<typename T>
++static void vma_delete(VmaAllocator hAllocator, T* ptr)
++{
++    if(ptr != VMA_NULL)
++    {
++        ptr->~T();
++        VmaFree(hAllocator, ptr);
++    }
++}
++
++template<typename T>
++static void vma_delete_array(VmaAllocator hAllocator, T* ptr, size_t count)
++{
++    if(ptr != VMA_NULL)
++    {
++        for(size_t i = count; i--; )
++            ptr[i].~T();
++        VmaFree(hAllocator, ptr);
++    }
++}
++#endif // _VMA_MEMORY_FUNCTIONS
++
++#ifndef _VMA_DEVICE_MEMORY_BLOCK_FUNCTIONS
++VmaDeviceMemoryBlock::VmaDeviceMemoryBlock(VmaAllocator hAllocator)
++    : m_pMetadata(VMA_NULL),
++    m_MemoryTypeIndex(UINT32_MAX),
++    m_Id(0),
++    m_hMemory(VK_NULL_HANDLE),
++    m_MapCount(0),
++    m_pMappedData(VMA_NULL) {}
++
++VmaDeviceMemoryBlock::~VmaDeviceMemoryBlock()
++{
++    VMA_ASSERT(m_MapCount == 0 && "VkDeviceMemory block is being destroyed while it is still mapped.");
++    VMA_ASSERT(m_hMemory == VK_NULL_HANDLE);
++}
++
++void VmaDeviceMemoryBlock::Init(
++    VmaAllocator hAllocator,
++    VmaPool hParentPool,
++    uint32_t newMemoryTypeIndex,
++    VkDeviceMemory newMemory,
++    VkDeviceSize newSize,
++    uint32_t id,
++    uint32_t algorithm,
++    VkDeviceSize bufferImageGranularity)
++{
++    VMA_ASSERT(m_hMemory == VK_NULL_HANDLE);
++
++    m_hParentPool = hParentPool;
++    m_MemoryTypeIndex = newMemoryTypeIndex;
++    m_Id = id;
++    m_hMemory = newMemory;
++
++    switch (algorithm)
++    {
++    case VMA_POOL_CREATE_LINEAR_ALGORITHM_BIT:
++        m_pMetadata = vma_new(hAllocator, VmaBlockMetadata_Linear)(hAllocator->GetAllocationCallbacks(),
++            bufferImageGranularity, false); // isVirtual
++        break;
++    default:
++        VMA_ASSERT(0);
++        // Fall-through.
++    case 0:
++        m_pMetadata = vma_new(hAllocator, VmaBlockMetadata_TLSF)(hAllocator->GetAllocationCallbacks(),
++            bufferImageGranularity, false); // isVirtual
++    }
++    m_pMetadata->Init(newSize);
++}
++
++void VmaDeviceMemoryBlock::Destroy(VmaAllocator allocator)
++{
++    // Define macro VMA_DEBUG_LOG to receive the list of the unfreed allocations
++    if (!m_pMetadata->IsEmpty())
++        m_pMetadata->DebugLogAllAllocations();
++    // This is the most important assert in the entire library.
++    // Hitting it means you have some memory leak - unreleased VmaAllocation objects.
++    VMA_ASSERT(m_pMetadata->IsEmpty() && "Some allocations were not freed before destruction of this memory block!");
++
++    VMA_ASSERT(m_hMemory != VK_NULL_HANDLE);
++    allocator->FreeVulkanMemory(m_MemoryTypeIndex, m_pMetadata->GetSize(), m_hMemory);
++    m_hMemory = VK_NULL_HANDLE;
++
++    vma_delete(allocator, m_pMetadata);
++    m_pMetadata = VMA_NULL;
++}
++
++void VmaDeviceMemoryBlock::PostFree(VmaAllocator hAllocator)
++{
++    if(m_MappingHysteresis.PostFree())
++    {
++        VMA_ASSERT(m_MappingHysteresis.GetExtraMapping() == 0);
++        if (m_MapCount == 0)
++        {
++            m_pMappedData = VMA_NULL;
++            (*hAllocator->GetVulkanFunctions().vkUnmapMemory)(hAllocator->m_hDevice, m_hMemory);
++        }
++    }
++}
++
++bool VmaDeviceMemoryBlock::Validate() const
++{
++    VMA_VALIDATE((m_hMemory != VK_NULL_HANDLE) &&
++        (m_pMetadata->GetSize() != 0));
++
++    return m_pMetadata->Validate();
++}
++
++VkResult VmaDeviceMemoryBlock::CheckCorruption(VmaAllocator hAllocator)
++{
++    void* pData = nullptr;
++    VkResult res = Map(hAllocator, 1, &pData);
++    if (res != VK_SUCCESS)
++    {
++        return res;
++    }
++
++    res = m_pMetadata->CheckCorruption(pData);
++
++    Unmap(hAllocator, 1);
++
++    return res;
++}
++
++VkResult VmaDeviceMemoryBlock::Map(VmaAllocator hAllocator, uint32_t count, void** ppData)
++{
++    if (count == 0)
++    {
++        return VK_SUCCESS;
++    }
++
++    VmaMutexLock lock(m_MapAndBindMutex, hAllocator->m_UseMutex);
++    const uint32_t oldTotalMapCount = m_MapCount + m_MappingHysteresis.GetExtraMapping();
++    m_MappingHysteresis.PostMap();
++    if (oldTotalMapCount != 0)
++    {
++        m_MapCount += count;
++        VMA_ASSERT(m_pMappedData != VMA_NULL);
++        if (ppData != VMA_NULL)
++        {
++            *ppData = m_pMappedData;
++        }
++        return VK_SUCCESS;
++    }
++    else
++    {
++        VkResult result = (*hAllocator->GetVulkanFunctions().vkMapMemory)(
++            hAllocator->m_hDevice,
++            m_hMemory,
++            0, // offset
++            VK_WHOLE_SIZE,
++            0, // flags
++            &m_pMappedData);
++        if (result == VK_SUCCESS)
++        {
++            if (ppData != VMA_NULL)
++            {
++                *ppData = m_pMappedData;
++            }
++            m_MapCount = count;
++        }
++        return result;
++    }
++}
++
++void VmaDeviceMemoryBlock::Unmap(VmaAllocator hAllocator, uint32_t count)
++{
++    if (count == 0)
++    {
++        return;
++    }
++
++    VmaMutexLock lock(m_MapAndBindMutex, hAllocator->m_UseMutex);
++    if (m_MapCount >= count)
++    {
++        m_MapCount -= count;
++        const uint32_t totalMapCount = m_MapCount + m_MappingHysteresis.GetExtraMapping();
++        if (totalMapCount == 0)
++        {
++            m_pMappedData = VMA_NULL;
++            (*hAllocator->GetVulkanFunctions().vkUnmapMemory)(hAllocator->m_hDevice, m_hMemory);
++        }
++        m_MappingHysteresis.PostUnmap();
++    }
++    else
++    {
++        VMA_ASSERT(0 && "VkDeviceMemory block is being unmapped while it was not previously mapped.");
++    }
++}
++
++VkResult VmaDeviceMemoryBlock::WriteMagicValueAfterAllocation(VmaAllocator hAllocator, VkDeviceSize allocOffset, VkDeviceSize allocSize)
++{
++    VMA_ASSERT(VMA_DEBUG_MARGIN > 0 && VMA_DEBUG_MARGIN % 4 == 0 && VMA_DEBUG_DETECT_CORRUPTION);
++
++    void* pData;
++    VkResult res = Map(hAllocator, 1, &pData);
++    if (res != VK_SUCCESS)
++    {
++        return res;
++    }
++
++    VmaWriteMagicValue(pData, allocOffset + allocSize);
++
++    Unmap(hAllocator, 1);
++    return VK_SUCCESS;
++}
++
++VkResult VmaDeviceMemoryBlock::ValidateMagicValueAfterAllocation(VmaAllocator hAllocator, VkDeviceSize allocOffset, VkDeviceSize allocSize)
++{
++    VMA_ASSERT(VMA_DEBUG_MARGIN > 0 && VMA_DEBUG_MARGIN % 4 == 0 && VMA_DEBUG_DETECT_CORRUPTION);
++
++    void* pData;
++    VkResult res = Map(hAllocator, 1, &pData);
++    if (res != VK_SUCCESS)
++    {
++        return res;
++    }
++
++    if (!VmaValidateMagicValue(pData, allocOffset + allocSize))
++    {
++        VMA_ASSERT(0 && "MEMORY CORRUPTION DETECTED AFTER FREED ALLOCATION!");
++    }
++
++    Unmap(hAllocator, 1);
++    return VK_SUCCESS;
++}
++
++VkResult VmaDeviceMemoryBlock::BindBufferMemory(
++    const VmaAllocator hAllocator,
++    const VmaAllocation hAllocation,
++    VkDeviceSize allocationLocalOffset,
++    VkBuffer hBuffer,
++    const void* pNext)
++{
++    VMA_ASSERT(hAllocation->GetType() == VmaAllocation_T::ALLOCATION_TYPE_BLOCK &&
++        hAllocation->GetBlock() == this);
++    VMA_ASSERT(allocationLocalOffset < hAllocation->GetSize() &&
++        "Invalid allocationLocalOffset. Did you forget that this offset is relative to the beginning of the allocation, not the whole memory block?");
++    const VkDeviceSize memoryOffset = hAllocation->GetOffset() + allocationLocalOffset;
++    // This lock is important so that we don't call vkBind... and/or vkMap... simultaneously on the same VkDeviceMemory from multiple threads.
++    VmaMutexLock lock(m_MapAndBindMutex, hAllocator->m_UseMutex);
++    return hAllocator->BindVulkanBuffer(m_hMemory, memoryOffset, hBuffer, pNext);
++}
++
++VkResult VmaDeviceMemoryBlock::BindImageMemory(
++    const VmaAllocator hAllocator,
++    const VmaAllocation hAllocation,
++    VkDeviceSize allocationLocalOffset,
++    VkImage hImage,
++    const void* pNext)
++{
++    VMA_ASSERT(hAllocation->GetType() == VmaAllocation_T::ALLOCATION_TYPE_BLOCK &&
++        hAllocation->GetBlock() == this);
++    VMA_ASSERT(allocationLocalOffset < hAllocation->GetSize() &&
++        "Invalid allocationLocalOffset. Did you forget that this offset is relative to the beginning of the allocation, not the whole memory block?");
++    const VkDeviceSize memoryOffset = hAllocation->GetOffset() + allocationLocalOffset;
++    // This lock is important so that we don't call vkBind... and/or vkMap... simultaneously on the same VkDeviceMemory from multiple threads.
++    VmaMutexLock lock(m_MapAndBindMutex, hAllocator->m_UseMutex);
++    return hAllocator->BindVulkanImage(m_hMemory, memoryOffset, hImage, pNext);
++}
++#endif // _VMA_DEVICE_MEMORY_BLOCK_FUNCTIONS
++
++#ifndef _VMA_ALLOCATION_T_FUNCTIONS
++VmaAllocation_T::VmaAllocation_T(bool mappingAllowed)
++    : m_Alignment{ 1 },
++    m_Size{ 0 },
++    m_pUserData{ VMA_NULL },
++    m_pName{ VMA_NULL },
++    m_MemoryTypeIndex{ 0 },
++    m_Type{ (uint8_t)ALLOCATION_TYPE_NONE },
++    m_SuballocationType{ (uint8_t)VMA_SUBALLOCATION_TYPE_UNKNOWN },
++    m_MapCount{ 0 },
++    m_Flags{ 0 }
++{
++    if(mappingAllowed)
++        m_Flags |= (uint8_t)FLAG_MAPPING_ALLOWED;
++
++#if VMA_STATS_STRING_ENABLED
++    m_BufferImageUsage = 0;
++#endif
++}
++
++VmaAllocation_T::~VmaAllocation_T()
++{
++    VMA_ASSERT(m_MapCount == 0 && "Allocation was not unmapped before destruction.");
++
++    // Check if owned string was freed.
++    VMA_ASSERT(m_pName == VMA_NULL);
++}
++
++void VmaAllocation_T::InitBlockAllocation(
++    VmaDeviceMemoryBlock* block,
++    VmaAllocHandle allocHandle,
++    VkDeviceSize alignment,
++    VkDeviceSize size,
++    uint32_t memoryTypeIndex,
++    VmaSuballocationType suballocationType,
++    bool mapped)
++{
++    VMA_ASSERT(m_Type == ALLOCATION_TYPE_NONE);
++    VMA_ASSERT(block != VMA_NULL);
++    m_Type = (uint8_t)ALLOCATION_TYPE_BLOCK;
++    m_Alignment = alignment;
++    m_Size = size;
++    m_MemoryTypeIndex = memoryTypeIndex;
++    if(mapped)
++    {
++        VMA_ASSERT(IsMappingAllowed() && "Mapping is not allowed on this allocation! Please use one of the new VMA_ALLOCATION_CREATE_HOST_ACCESS_* flags when creating it.");
++        m_Flags |= (uint8_t)FLAG_PERSISTENT_MAP;
++    }
++    m_SuballocationType = (uint8_t)suballocationType;
++    m_BlockAllocation.m_Block = block;
++    m_BlockAllocation.m_AllocHandle = allocHandle;
++}
++
++void VmaAllocation_T::InitDedicatedAllocation(
++    VmaPool hParentPool,
++    uint32_t memoryTypeIndex,
++    VkDeviceMemory hMemory,
++    VmaSuballocationType suballocationType,
++    void* pMappedData,
++    VkDeviceSize size)
++{
++    VMA_ASSERT(m_Type == ALLOCATION_TYPE_NONE);
++    VMA_ASSERT(hMemory != VK_NULL_HANDLE);
++    m_Type = (uint8_t)ALLOCATION_TYPE_DEDICATED;
++    m_Alignment = 0;
++    m_Size = size;
++    m_MemoryTypeIndex = memoryTypeIndex;
++    m_SuballocationType = (uint8_t)suballocationType;
++    if(pMappedData != VMA_NULL)
++    {
++        VMA_ASSERT(IsMappingAllowed() && "Mapping is not allowed on this allocation! Please use one of the new VMA_ALLOCATION_CREATE_HOST_ACCESS_* flags when creating it.");
++        m_Flags |= (uint8_t)FLAG_PERSISTENT_MAP;
++    }
++    m_DedicatedAllocation.m_hParentPool = hParentPool;
++    m_DedicatedAllocation.m_hMemory = hMemory;
++    m_DedicatedAllocation.m_pMappedData = pMappedData;
++    m_DedicatedAllocation.m_Prev = VMA_NULL;
++    m_DedicatedAllocation.m_Next = VMA_NULL;
++}
++
++void VmaAllocation_T::SetName(VmaAllocator hAllocator, const char* pName)
++{
++    VMA_ASSERT(pName == VMA_NULL || pName != m_pName);
++
++    FreeName(hAllocator);
++
++    if (pName != VMA_NULL)
++        m_pName = VmaCreateStringCopy(hAllocator->GetAllocationCallbacks(), pName);
++}
++
++uint8_t VmaAllocation_T::SwapBlockAllocation(VmaAllocator hAllocator, VmaAllocation allocation)
++{
++    VMA_ASSERT(allocation != VMA_NULL);
++    VMA_ASSERT(m_Type == ALLOCATION_TYPE_BLOCK);
++    VMA_ASSERT(allocation->m_Type == ALLOCATION_TYPE_BLOCK);
++
++    if (m_MapCount != 0)
++        m_BlockAllocation.m_Block->Unmap(hAllocator, m_MapCount);
++
++    m_BlockAllocation.m_Block->m_pMetadata->SetAllocationUserData(m_BlockAllocation.m_AllocHandle, allocation);
++    VMA_SWAP(m_BlockAllocation, allocation->m_BlockAllocation);
++    m_BlockAllocation.m_Block->m_pMetadata->SetAllocationUserData(m_BlockAllocation.m_AllocHandle, this);
++
++#if VMA_STATS_STRING_ENABLED
++    VMA_SWAP(m_BufferImageUsage, allocation->m_BufferImageUsage);
++#endif
++    return m_MapCount;
++}
++
++VmaAllocHandle VmaAllocation_T::GetAllocHandle() const
++{
++    switch (m_Type)
++    {
++    case ALLOCATION_TYPE_BLOCK:
++        return m_BlockAllocation.m_AllocHandle;
++    case ALLOCATION_TYPE_DEDICATED:
++        return VK_NULL_HANDLE;
++    default:
++        VMA_ASSERT(0);
++        return VK_NULL_HANDLE;
++    }
++}
++
++VkDeviceSize VmaAllocation_T::GetOffset() const
++{
++    switch (m_Type)
++    {
++    case ALLOCATION_TYPE_BLOCK:
++        return m_BlockAllocation.m_Block->m_pMetadata->GetAllocationOffset(m_BlockAllocation.m_AllocHandle);
++    case ALLOCATION_TYPE_DEDICATED:
++        return 0;
++    default:
++        VMA_ASSERT(0);
++        return 0;
++    }
++}
++
++VmaPool VmaAllocation_T::GetParentPool() const
++{
++    switch (m_Type)
++    {
++    case ALLOCATION_TYPE_BLOCK:
++        return m_BlockAllocation.m_Block->GetParentPool();
++    case ALLOCATION_TYPE_DEDICATED:
++        return m_DedicatedAllocation.m_hParentPool;
++    default:
++        VMA_ASSERT(0);
++        return VK_NULL_HANDLE;
++    }
++}
++
++VkDeviceMemory VmaAllocation_T::GetMemory() const
++{
++    switch (m_Type)
++    {
++    case ALLOCATION_TYPE_BLOCK:
++        return m_BlockAllocation.m_Block->GetDeviceMemory();
++    case ALLOCATION_TYPE_DEDICATED:
++        return m_DedicatedAllocation.m_hMemory;
++    default:
++        VMA_ASSERT(0);
++        return VK_NULL_HANDLE;
++    }
++}
++
++void* VmaAllocation_T::GetMappedData() const
++{
++    switch (m_Type)
++    {
++    case ALLOCATION_TYPE_BLOCK:
++        if (m_MapCount != 0 || IsPersistentMap())
++        {
++            void* pBlockData = m_BlockAllocation.m_Block->GetMappedData();
++            VMA_ASSERT(pBlockData != VMA_NULL);
++            return (char*)pBlockData + GetOffset();
++        }
++        else
++        {
++            return VMA_NULL;
++        }
++        break;
++    case ALLOCATION_TYPE_DEDICATED:
++        VMA_ASSERT((m_DedicatedAllocation.m_pMappedData != VMA_NULL) == (m_MapCount != 0 || IsPersistentMap()));
++        return m_DedicatedAllocation.m_pMappedData;
++    default:
++        VMA_ASSERT(0);
++        return VMA_NULL;
++    }
++}
++
++void VmaAllocation_T::BlockAllocMap()
++{
++    VMA_ASSERT(GetType() == ALLOCATION_TYPE_BLOCK);
++    VMA_ASSERT(IsMappingAllowed() && "Mapping is not allowed on this allocation! Please use one of the new VMA_ALLOCATION_CREATE_HOST_ACCESS_* flags when creating it.");
++
++    if (m_MapCount < 0xFF)
++    {
++        ++m_MapCount;
++    }
++    else
++    {
++        VMA_ASSERT(0 && "Allocation mapped too many times simultaneously.");
++    }
++}
++
++void VmaAllocation_T::BlockAllocUnmap()
++{
++    VMA_ASSERT(GetType() == ALLOCATION_TYPE_BLOCK);
++
++    if (m_MapCount > 0)
++    {
++        --m_MapCount;
++    }
++    else
++    {
++        VMA_ASSERT(0 && "Unmapping allocation not previously mapped.");
++    }
++}
++
++VkResult VmaAllocation_T::DedicatedAllocMap(VmaAllocator hAllocator, void** ppData)
++{
++    VMA_ASSERT(GetType() == ALLOCATION_TYPE_DEDICATED);
++    VMA_ASSERT(IsMappingAllowed() && "Mapping is not allowed on this allocation! Please use one of the new VMA_ALLOCATION_CREATE_HOST_ACCESS_* flags when creating it.");
++
++    if (m_MapCount != 0 || IsPersistentMap())
++    {
++        if (m_MapCount < 0xFF)
++        {
++            VMA_ASSERT(m_DedicatedAllocation.m_pMappedData != VMA_NULL);
++            *ppData = m_DedicatedAllocation.m_pMappedData;
++            ++m_MapCount;
++            return VK_SUCCESS;
++        }
++        else
++        {
++            VMA_ASSERT(0 && "Dedicated allocation mapped too many times simultaneously.");
++            return VK_ERROR_MEMORY_MAP_FAILED;
++        }
++    }
++    else
++    {
++        VkResult result = (*hAllocator->GetVulkanFunctions().vkMapMemory)(
++            hAllocator->m_hDevice,
++            m_DedicatedAllocation.m_hMemory,
++            0, // offset
++            VK_WHOLE_SIZE,
++            0, // flags
++            ppData);
++        if (result == VK_SUCCESS)
++        {
++            m_DedicatedAllocation.m_pMappedData = *ppData;
++            m_MapCount = 1;
++        }
++        return result;
++    }
++}
++
++void VmaAllocation_T::DedicatedAllocUnmap(VmaAllocator hAllocator)
++{
++    VMA_ASSERT(GetType() == ALLOCATION_TYPE_DEDICATED);
++
++    if (m_MapCount > 0)
++    {
++        --m_MapCount;
++        if (m_MapCount == 0 && !IsPersistentMap())
++        {
++            m_DedicatedAllocation.m_pMappedData = VMA_NULL;
++            (*hAllocator->GetVulkanFunctions().vkUnmapMemory)(
++                hAllocator->m_hDevice,
++                m_DedicatedAllocation.m_hMemory);
++        }
++    }
++    else
++    {
++        VMA_ASSERT(0 && "Unmapping dedicated allocation not previously mapped.");
++    }
++}
++
++#if VMA_STATS_STRING_ENABLED
++void VmaAllocation_T::InitBufferImageUsage(uint32_t bufferImageUsage)
++{
++    VMA_ASSERT(m_BufferImageUsage == 0);
++    m_BufferImageUsage = bufferImageUsage;
++}
++
++void VmaAllocation_T::PrintParameters(class VmaJsonWriter& json) const
++{
++    json.WriteString("Type");
++    json.WriteString(VMA_SUBALLOCATION_TYPE_NAMES[m_SuballocationType]);
++
++    json.WriteString("Size");
++    json.WriteNumber(m_Size);
++    json.WriteString("Usage");
++    json.WriteNumber(m_BufferImageUsage);
++
++    if (m_pUserData != VMA_NULL)
++    {
++        json.WriteString("CustomData");
++        json.BeginString();
++        json.ContinueString_Pointer(m_pUserData);
++        json.EndString();
++    }
++    if (m_pName != VMA_NULL)
++    {
++        json.WriteString("Name");
++        json.WriteString(m_pName);
++    }
++}
++#endif // VMA_STATS_STRING_ENABLED
++
++void VmaAllocation_T::FreeName(VmaAllocator hAllocator)
++{
++    if(m_pName)
++    {
++        VmaFreeString(hAllocator->GetAllocationCallbacks(), m_pName);
++        m_pName = VMA_NULL;
++    }
++}
++#endif // _VMA_ALLOCATION_T_FUNCTIONS
++
++#ifndef _VMA_BLOCK_VECTOR_FUNCTIONS
++VmaBlockVector::VmaBlockVector(
++    VmaAllocator hAllocator,
++    VmaPool hParentPool,
++    uint32_t memoryTypeIndex,
++    VkDeviceSize preferredBlockSize,
++    size_t minBlockCount,
++    size_t maxBlockCount,
++    VkDeviceSize bufferImageGranularity,
++    bool explicitBlockSize,
++    uint32_t algorithm,
++    float priority,
++    VkDeviceSize minAllocationAlignment,
++    void* pMemoryAllocateNext)
++    : m_hAllocator(hAllocator),
++    m_hParentPool(hParentPool),
++    m_MemoryTypeIndex(memoryTypeIndex),
++    m_PreferredBlockSize(preferredBlockSize),
++    m_MinBlockCount(minBlockCount),
++    m_MaxBlockCount(maxBlockCount),
++    m_BufferImageGranularity(bufferImageGranularity),
++    m_ExplicitBlockSize(explicitBlockSize),
++    m_Algorithm(algorithm),
++    m_Priority(priority),
++    m_MinAllocationAlignment(minAllocationAlignment),
++    m_pMemoryAllocateNext(pMemoryAllocateNext),
++    m_Blocks(VmaStlAllocator<VmaDeviceMemoryBlock*>(hAllocator->GetAllocationCallbacks())),
++    m_NextBlockId(0) {}
++
++VmaBlockVector::~VmaBlockVector()
++{
++    for (size_t i = m_Blocks.size(); i--; )
++    {
++        m_Blocks[i]->Destroy(m_hAllocator);
++        vma_delete(m_hAllocator, m_Blocks[i]);
++    }
++}
++
++VkResult VmaBlockVector::CreateMinBlocks()
++{
++    for (size_t i = 0; i < m_MinBlockCount; ++i)
++    {
++        VkResult res = CreateBlock(m_PreferredBlockSize, VMA_NULL);
++        if (res != VK_SUCCESS)
++        {
++            return res;
++        }
++    }
++    return VK_SUCCESS;
++}
++
++void VmaBlockVector::AddStatistics(VmaStatistics& inoutStats)
++{
++    VmaMutexLockRead lock(m_Mutex, m_hAllocator->m_UseMutex);
++
++    const size_t blockCount = m_Blocks.size();
++    for (uint32_t blockIndex = 0; blockIndex < blockCount; ++blockIndex)
++    {
++        const VmaDeviceMemoryBlock* const pBlock = m_Blocks[blockIndex];
++        VMA_ASSERT(pBlock);
++        VMA_HEAVY_ASSERT(pBlock->Validate());
++        pBlock->m_pMetadata->AddStatistics(inoutStats);
++    }
++}
++
++void VmaBlockVector::AddDetailedStatistics(VmaDetailedStatistics& inoutStats)
++{
++    VmaMutexLockRead lock(m_Mutex, m_hAllocator->m_UseMutex);
++
++    const size_t blockCount = m_Blocks.size();
++    for (uint32_t blockIndex = 0; blockIndex < blockCount; ++blockIndex)
++    {
++        const VmaDeviceMemoryBlock* const pBlock = m_Blocks[blockIndex];
++        VMA_ASSERT(pBlock);
++        VMA_HEAVY_ASSERT(pBlock->Validate());
++        pBlock->m_pMetadata->AddDetailedStatistics(inoutStats);
++    }
++}
++
++bool VmaBlockVector::IsEmpty()
++{
++    VmaMutexLockRead lock(m_Mutex, m_hAllocator->m_UseMutex);
++    return m_Blocks.empty();
++}
++
++bool VmaBlockVector::IsCorruptionDetectionEnabled() const
++{
++    const uint32_t requiredMemFlags = VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT;
++    return (VMA_DEBUG_DETECT_CORRUPTION != 0) &&
++        (VMA_DEBUG_MARGIN > 0) &&
++        (m_Algorithm == 0 || m_Algorithm == VMA_POOL_CREATE_LINEAR_ALGORITHM_BIT) &&
++        (m_hAllocator->m_MemProps.memoryTypes[m_MemoryTypeIndex].propertyFlags & requiredMemFlags) == requiredMemFlags;
++}
++
++VkResult VmaBlockVector::Allocate(
++    VkDeviceSize size,
++    VkDeviceSize alignment,
++    const VmaAllocationCreateInfo& createInfo,
++    VmaSuballocationType suballocType,
++    size_t allocationCount,
++    VmaAllocation* pAllocations)
++{
++    size_t allocIndex;
++    VkResult res = VK_SUCCESS;
++
++    alignment = VMA_MAX(alignment, m_MinAllocationAlignment);
++
++    if (IsCorruptionDetectionEnabled())
++    {
++        size = VmaAlignUp<VkDeviceSize>(size, sizeof(VMA_CORRUPTION_DETECTION_MAGIC_VALUE));
++        alignment = VmaAlignUp<VkDeviceSize>(alignment, sizeof(VMA_CORRUPTION_DETECTION_MAGIC_VALUE));
++    }
++
++    {
++        VmaMutexLockWrite lock(m_Mutex, m_hAllocator->m_UseMutex);
++        for (allocIndex = 0; allocIndex < allocationCount; ++allocIndex)
++        {
++            res = AllocatePage(
++                size,
++                alignment,
++                createInfo,
++                suballocType,
++                pAllocations + allocIndex);
++            if (res != VK_SUCCESS)
++            {
++                break;
++            }
++        }
++    }
++
++    if (res != VK_SUCCESS)
++    {
++        // Free all already created allocations.
++        while (allocIndex--)
++            Free(pAllocations[allocIndex]);
++        memset(pAllocations, 0, sizeof(VmaAllocation) * allocationCount);
++    }
++
++    return res;
++}
++
++VkResult VmaBlockVector::AllocatePage(
++    VkDeviceSize size,
++    VkDeviceSize alignment,
++    const VmaAllocationCreateInfo& createInfo,
++    VmaSuballocationType suballocType,
++    VmaAllocation* pAllocation)
++{
++    const bool isUpperAddress = (createInfo.flags & VMA_ALLOCATION_CREATE_UPPER_ADDRESS_BIT) != 0;
++
++    VkDeviceSize freeMemory;
++    {
++        const uint32_t heapIndex = m_hAllocator->MemoryTypeIndexToHeapIndex(m_MemoryTypeIndex);
++        VmaBudget heapBudget = {};
++        m_hAllocator->GetHeapBudgets(&heapBudget, heapIndex, 1);
++        freeMemory = (heapBudget.usage < heapBudget.budget) ? (heapBudget.budget - heapBudget.usage) : 0;
++    }
++
++    const bool canFallbackToDedicated = !HasExplicitBlockSize() &&
++        (createInfo.flags & VMA_ALLOCATION_CREATE_NEVER_ALLOCATE_BIT) == 0;
++    const bool canCreateNewBlock =
++        ((createInfo.flags & VMA_ALLOCATION_CREATE_NEVER_ALLOCATE_BIT) == 0) &&
++        (m_Blocks.size() < m_MaxBlockCount) &&
++        (freeMemory >= size || !canFallbackToDedicated);
++    uint32_t strategy = createInfo.flags & VMA_ALLOCATION_CREATE_STRATEGY_MASK;
++
++    // Upper address can only be used with linear allocator and within single memory block.
++    if (isUpperAddress &&
++        (m_Algorithm != VMA_POOL_CREATE_LINEAR_ALGORITHM_BIT || m_MaxBlockCount > 1))
++    {
++        return VK_ERROR_FEATURE_NOT_PRESENT;
++    }
++
++    // Early reject: requested allocation size is larger that maximum block size for this block vector.
++    if (size + VMA_DEBUG_MARGIN > m_PreferredBlockSize)
++    {
++        return VK_ERROR_OUT_OF_DEVICE_MEMORY;
++    }
++
++    // 1. Search existing allocations. Try to allocate.
++    if (m_Algorithm == VMA_POOL_CREATE_LINEAR_ALGORITHM_BIT)
++    {
++        // Use only last block.
++        if (!m_Blocks.empty())
++        {
++            VmaDeviceMemoryBlock* const pCurrBlock = m_Blocks.back();
++            VMA_ASSERT(pCurrBlock);
++            VkResult res = AllocateFromBlock(
++                pCurrBlock, size, alignment, createInfo.flags, createInfo.pUserData, suballocType, strategy, pAllocation);
++            if (res == VK_SUCCESS)
++            {
++                VMA_DEBUG_LOG("    Returned from last block #%u", pCurrBlock->GetId());
++                IncrementallySortBlocks();
++                return VK_SUCCESS;
++            }
++        }
++    }
++    else
++    {
++        if (strategy != VMA_ALLOCATION_CREATE_STRATEGY_MIN_TIME_BIT) // MIN_MEMORY or default
++        {
++            const bool isHostVisible =
++                (m_hAllocator->m_MemProps.memoryTypes[m_MemoryTypeIndex].propertyFlags & VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT) != 0;
++            if(isHostVisible)
++            {
++                const bool isMappingAllowed = (createInfo.flags &
++                    (VMA_ALLOCATION_CREATE_HOST_ACCESS_SEQUENTIAL_WRITE_BIT | VMA_ALLOCATION_CREATE_HOST_ACCESS_RANDOM_BIT)) != 0;
++                /*
++                For non-mappable allocations, check blocks that are not mapped first.
++                For mappable allocations, check blocks that are already mapped first.
++                This way, having many blocks, we will separate mappable and non-mappable allocations,
++                hopefully limiting the number of blocks that are mapped, which will help tools like RenderDoc.
++                */
++                for(size_t mappingI = 0; mappingI < 2; ++mappingI)
++                {
++                    // Forward order in m_Blocks - prefer blocks with smallest amount of free space.
++                    for (size_t blockIndex = 0; blockIndex < m_Blocks.size(); ++blockIndex)
++                    {
++                        VmaDeviceMemoryBlock* const pCurrBlock = m_Blocks[blockIndex];
++                        VMA_ASSERT(pCurrBlock);
++                        const bool isBlockMapped = pCurrBlock->GetMappedData() != VMA_NULL;
++                        if((mappingI == 0) == (isMappingAllowed == isBlockMapped))
++                        {
++                            VkResult res = AllocateFromBlock(
++                                pCurrBlock, size, alignment, createInfo.flags, createInfo.pUserData, suballocType, strategy, pAllocation);
++                            if (res == VK_SUCCESS)
++                            {
++                                VMA_DEBUG_LOG("    Returned from existing block #%u", pCurrBlock->GetId());
++                                IncrementallySortBlocks();
++                                return VK_SUCCESS;
++                            }
++                        }
++                    }
++                }
++            }
++            else
++            {
++                // Forward order in m_Blocks - prefer blocks with smallest amount of free space.
++                for (size_t blockIndex = 0; blockIndex < m_Blocks.size(); ++blockIndex)
++                {
++                    VmaDeviceMemoryBlock* const pCurrBlock = m_Blocks[blockIndex];
++                    VMA_ASSERT(pCurrBlock);
++                    VkResult res = AllocateFromBlock(
++                        pCurrBlock, size, alignment, createInfo.flags, createInfo.pUserData, suballocType, strategy, pAllocation);
++                    if (res == VK_SUCCESS)
++                    {
++                        VMA_DEBUG_LOG("    Returned from existing block #%u", pCurrBlock->GetId());
++                        IncrementallySortBlocks();
++                        return VK_SUCCESS;
++                    }
++                }
++            }
++        }
++        else // VMA_ALLOCATION_CREATE_STRATEGY_MIN_TIME_BIT
++        {
++            // Backward order in m_Blocks - prefer blocks with largest amount of free space.
++            for (size_t blockIndex = m_Blocks.size(); blockIndex--; )
++            {
++                VmaDeviceMemoryBlock* const pCurrBlock = m_Blocks[blockIndex];
++                VMA_ASSERT(pCurrBlock);
++                VkResult res = AllocateFromBlock(pCurrBlock, size, alignment, createInfo.flags, createInfo.pUserData, suballocType, strategy, pAllocation);
++                if (res == VK_SUCCESS)
++                {
++                    VMA_DEBUG_LOG("    Returned from existing block #%u", pCurrBlock->GetId());
++                    IncrementallySortBlocks();
++                    return VK_SUCCESS;
++                }
++            }
++        }
++    }
++
++    // 2. Try to create new block.
++    if (canCreateNewBlock)
++    {
++        // Calculate optimal size for new block.
++        VkDeviceSize newBlockSize = m_PreferredBlockSize;
++        uint32_t newBlockSizeShift = 0;
++        const uint32_t NEW_BLOCK_SIZE_SHIFT_MAX = 3;
++
++        if (!m_ExplicitBlockSize)
++        {
++            // Allocate 1/8, 1/4, 1/2 as first blocks.
++            const VkDeviceSize maxExistingBlockSize = CalcMaxBlockSize();
++            for (uint32_t i = 0; i < NEW_BLOCK_SIZE_SHIFT_MAX; ++i)
++            {
++                const VkDeviceSize smallerNewBlockSize = newBlockSize / 2;
++                if (smallerNewBlockSize > maxExistingBlockSize && smallerNewBlockSize >= size * 2)
++                {
++                    newBlockSize = smallerNewBlockSize;
++                    ++newBlockSizeShift;
++                }
++                else
++                {
++                    break;
++                }
++            }
++        }
++
++        size_t newBlockIndex = 0;
++        VkResult res = (newBlockSize <= freeMemory || !canFallbackToDedicated) ?
++            CreateBlock(newBlockSize, &newBlockIndex) : VK_ERROR_OUT_OF_DEVICE_MEMORY;
++        // Allocation of this size failed? Try 1/2, 1/4, 1/8 of m_PreferredBlockSize.
++        if (!m_ExplicitBlockSize)
++        {
++            while (res < 0 && newBlockSizeShift < NEW_BLOCK_SIZE_SHIFT_MAX)
++            {
++                const VkDeviceSize smallerNewBlockSize = newBlockSize / 2;
++                if (smallerNewBlockSize >= size)
++                {
++                    newBlockSize = smallerNewBlockSize;
++                    ++newBlockSizeShift;
++                    res = (newBlockSize <= freeMemory || !canFallbackToDedicated) ?
++                        CreateBlock(newBlockSize, &newBlockIndex) : VK_ERROR_OUT_OF_DEVICE_MEMORY;
++                }
++                else
++                {
++                    break;
++                }
++            }
++        }
++
++        if (res == VK_SUCCESS)
++        {
++            VmaDeviceMemoryBlock* const pBlock = m_Blocks[newBlockIndex];
++            VMA_ASSERT(pBlock->m_pMetadata->GetSize() >= size);
++
++            res = AllocateFromBlock(
++                pBlock, size, alignment, createInfo.flags, createInfo.pUserData, suballocType, strategy, pAllocation);
++            if (res == VK_SUCCESS)
++            {
++                VMA_DEBUG_LOG("    Created new block #%u Size=%llu", pBlock->GetId(), newBlockSize);
++                IncrementallySortBlocks();
++                return VK_SUCCESS;
++            }
++            else
++            {
++                // Allocation from new block failed, possibly due to VMA_DEBUG_MARGIN or alignment.
++                return VK_ERROR_OUT_OF_DEVICE_MEMORY;
++            }
++        }
++    }
++
++    return VK_ERROR_OUT_OF_DEVICE_MEMORY;
++}
++
++void VmaBlockVector::Free(const VmaAllocation hAllocation)
++{
++    VmaDeviceMemoryBlock* pBlockToDelete = VMA_NULL;
++
++    bool budgetExceeded = false;
++    {
++        const uint32_t heapIndex = m_hAllocator->MemoryTypeIndexToHeapIndex(m_MemoryTypeIndex);
++        VmaBudget heapBudget = {};
++        m_hAllocator->GetHeapBudgets(&heapBudget, heapIndex, 1);
++        budgetExceeded = heapBudget.usage >= heapBudget.budget;
++    }
++
++    // Scope for lock.
++    {
++        VmaMutexLockWrite lock(m_Mutex, m_hAllocator->m_UseMutex);
++
++        VmaDeviceMemoryBlock* pBlock = hAllocation->GetBlock();
++
++        if (IsCorruptionDetectionEnabled())
++        {
++            VkResult res = pBlock->ValidateMagicValueAfterAllocation(m_hAllocator, hAllocation->GetOffset(), hAllocation->GetSize());
++            VMA_ASSERT(res == VK_SUCCESS && "Couldn't map block memory to validate magic value.");
++        }
++
++        if (hAllocation->IsPersistentMap())
++        {
++            pBlock->Unmap(m_hAllocator, 1);
++        }
++
++        const bool hadEmptyBlockBeforeFree = HasEmptyBlock();
++        pBlock->m_pMetadata->Free(hAllocation->GetAllocHandle());
++        pBlock->PostFree(m_hAllocator);
++        VMA_HEAVY_ASSERT(pBlock->Validate());
++
++        VMA_DEBUG_LOG("  Freed from MemoryTypeIndex=%u", m_MemoryTypeIndex);
++
++        const bool canDeleteBlock = m_Blocks.size() > m_MinBlockCount;
++        // pBlock became empty after this deallocation.
++        if (pBlock->m_pMetadata->IsEmpty())
++        {
++            // Already had empty block. We don't want to have two, so delete this one.
++            if ((hadEmptyBlockBeforeFree || budgetExceeded) && canDeleteBlock)
++            {
++                pBlockToDelete = pBlock;
++                Remove(pBlock);
++            }
++            // else: We now have one empty block - leave it. A hysteresis to avoid allocating whole block back and forth.
++        }
++        // pBlock didn't become empty, but we have another empty block - find and free that one.
++        // (This is optional, heuristics.)
++        else if (hadEmptyBlockBeforeFree && canDeleteBlock)
++        {
++            VmaDeviceMemoryBlock* pLastBlock = m_Blocks.back();
++            if (pLastBlock->m_pMetadata->IsEmpty())
++            {
++                pBlockToDelete = pLastBlock;
++                m_Blocks.pop_back();
++            }
++        }
++
++        IncrementallySortBlocks();
++    }
++
++    // Destruction of a free block. Deferred until this point, outside of mutex
++    // lock, for performance reason.
++    if (pBlockToDelete != VMA_NULL)
++    {
++        VMA_DEBUG_LOG("    Deleted empty block #%u", pBlockToDelete->GetId());
++        pBlockToDelete->Destroy(m_hAllocator);
++        vma_delete(m_hAllocator, pBlockToDelete);
++    }
++
++    m_hAllocator->m_Budget.RemoveAllocation(m_hAllocator->MemoryTypeIndexToHeapIndex(m_MemoryTypeIndex), hAllocation->GetSize());
++    m_hAllocator->m_AllocationObjectAllocator.Free(hAllocation);
++}
++
++VkDeviceSize VmaBlockVector::CalcMaxBlockSize() const
++{
++    VkDeviceSize result = 0;
++    for (size_t i = m_Blocks.size(); i--; )
++    {
++        result = VMA_MAX(result, m_Blocks[i]->m_pMetadata->GetSize());
++        if (result >= m_PreferredBlockSize)
++        {
++            break;
++        }
++    }
++    return result;
++}
++
++void VmaBlockVector::Remove(VmaDeviceMemoryBlock* pBlock)
++{
++    for (uint32_t blockIndex = 0; blockIndex < m_Blocks.size(); ++blockIndex)
++    {
++        if (m_Blocks[blockIndex] == pBlock)
++        {
++            VmaVectorRemove(m_Blocks, blockIndex);
++            return;
++        }
++    }
++    VMA_ASSERT(0);
++}
++
++void VmaBlockVector::IncrementallySortBlocks()
++{
++    if (!m_IncrementalSort)
++        return;
++    if (m_Algorithm != VMA_POOL_CREATE_LINEAR_ALGORITHM_BIT)
++    {
++        // Bubble sort only until first swap.
++        for (size_t i = 1; i < m_Blocks.size(); ++i)
++        {
++            if (m_Blocks[i - 1]->m_pMetadata->GetSumFreeSize() > m_Blocks[i]->m_pMetadata->GetSumFreeSize())
++            {
++                VMA_SWAP(m_Blocks[i - 1], m_Blocks[i]);
++                return;
++            }
++        }
++    }
++}
++
++void VmaBlockVector::SortByFreeSize()
++{
++    VMA_SORT(m_Blocks.begin(), m_Blocks.end(),
++        [](auto* b1, auto* b2)
++        {
++            return b1->m_pMetadata->GetSumFreeSize() < b2->m_pMetadata->GetSumFreeSize();
++        });
++}
++
++VkResult VmaBlockVector::AllocateFromBlock(
++    VmaDeviceMemoryBlock* pBlock,
++    VkDeviceSize size,
++    VkDeviceSize alignment,
++    VmaAllocationCreateFlags allocFlags,
++    void* pUserData,
++    VmaSuballocationType suballocType,
++    uint32_t strategy,
++    VmaAllocation* pAllocation)
++{
++    const bool isUpperAddress = (allocFlags & VMA_ALLOCATION_CREATE_UPPER_ADDRESS_BIT) != 0;
++
++    VmaAllocationRequest currRequest = {};
++    if (pBlock->m_pMetadata->CreateAllocationRequest(
++        size,
++        alignment,
++        isUpperAddress,
++        suballocType,
++        strategy,
++        &currRequest))
++    {
++        return CommitAllocationRequest(currRequest, pBlock, alignment, allocFlags, pUserData, suballocType, pAllocation);
++    }
++    return VK_ERROR_OUT_OF_DEVICE_MEMORY;
++}
++
++VkResult VmaBlockVector::CommitAllocationRequest(
++    VmaAllocationRequest& allocRequest,
++    VmaDeviceMemoryBlock* pBlock,
++    VkDeviceSize alignment,
++    VmaAllocationCreateFlags allocFlags,
++    void* pUserData,
++    VmaSuballocationType suballocType,
++    VmaAllocation* pAllocation)
++{
++    const bool mapped = (allocFlags & VMA_ALLOCATION_CREATE_MAPPED_BIT) != 0;
++    const bool isUserDataString = (allocFlags & VMA_ALLOCATION_CREATE_USER_DATA_COPY_STRING_BIT) != 0;
++    const bool isMappingAllowed = (allocFlags &
++        (VMA_ALLOCATION_CREATE_HOST_ACCESS_SEQUENTIAL_WRITE_BIT | VMA_ALLOCATION_CREATE_HOST_ACCESS_RANDOM_BIT)) != 0;
++
++    pBlock->PostAlloc();
++    // Allocate from pCurrBlock.
++    if (mapped)
++    {
++        VkResult res = pBlock->Map(m_hAllocator, 1, VMA_NULL);
++        if (res != VK_SUCCESS)
++        {
++            return res;
++        }
++    }
++
++    *pAllocation = m_hAllocator->m_AllocationObjectAllocator.Allocate(isMappingAllowed);
++    pBlock->m_pMetadata->Alloc(allocRequest, suballocType, *pAllocation);
++    (*pAllocation)->InitBlockAllocation(
++        pBlock,
++        allocRequest.allocHandle,
++        alignment,
++        allocRequest.size, // Not size, as actual allocation size may be larger than requested!
++        m_MemoryTypeIndex,
++        suballocType,
++        mapped);
++    VMA_HEAVY_ASSERT(pBlock->Validate());
++    if (isUserDataString)
++        (*pAllocation)->SetName(m_hAllocator, (const char*)pUserData);
++    else
++        (*pAllocation)->SetUserData(m_hAllocator, pUserData);
++    m_hAllocator->m_Budget.AddAllocation(m_hAllocator->MemoryTypeIndexToHeapIndex(m_MemoryTypeIndex), allocRequest.size);
++    if (VMA_DEBUG_INITIALIZE_ALLOCATIONS)
++    {
++        m_hAllocator->FillAllocation(*pAllocation, VMA_ALLOCATION_FILL_PATTERN_CREATED);
++    }
++    if (IsCorruptionDetectionEnabled())
++    {
++        VkResult res = pBlock->WriteMagicValueAfterAllocation(m_hAllocator, (*pAllocation)->GetOffset(), allocRequest.size);
++        VMA_ASSERT(res == VK_SUCCESS && "Couldn't map block memory to write magic value.");
++    }
++    return VK_SUCCESS;
++}
++
++VkResult VmaBlockVector::CreateBlock(VkDeviceSize blockSize, size_t* pNewBlockIndex)
++{
++    VkMemoryAllocateInfo allocInfo = { VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO };
++    allocInfo.pNext = m_pMemoryAllocateNext;
++    allocInfo.memoryTypeIndex = m_MemoryTypeIndex;
++    allocInfo.allocationSize = blockSize;
++
++#if VMA_BUFFER_DEVICE_ADDRESS
++    // Every standalone block can potentially contain a buffer with VK_BUFFER_USAGE_SHADER_DEVICE_ADDRESS_BIT - always enable the feature.
++    VkMemoryAllocateFlagsInfoKHR allocFlagsInfo = { VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_FLAGS_INFO_KHR };
++    if (m_hAllocator->m_UseKhrBufferDeviceAddress)
++    {
++        allocFlagsInfo.flags = VK_MEMORY_ALLOCATE_DEVICE_ADDRESS_BIT_KHR;
++        VmaPnextChainPushFront(&allocInfo, &allocFlagsInfo);
++    }
++#endif // VMA_BUFFER_DEVICE_ADDRESS
++
++#if VMA_MEMORY_PRIORITY
++    VkMemoryPriorityAllocateInfoEXT priorityInfo = { VK_STRUCTURE_TYPE_MEMORY_PRIORITY_ALLOCATE_INFO_EXT };
++    if (m_hAllocator->m_UseExtMemoryPriority)
++    {
++        VMA_ASSERT(m_Priority >= 0.f && m_Priority <= 1.f);
++        priorityInfo.priority = m_Priority;
++        VmaPnextChainPushFront(&allocInfo, &priorityInfo);
++    }
++#endif // VMA_MEMORY_PRIORITY
++
++#if VMA_EXTERNAL_MEMORY
++    // Attach VkExportMemoryAllocateInfoKHR if necessary.
++    VkExportMemoryAllocateInfoKHR exportMemoryAllocInfo = { VK_STRUCTURE_TYPE_EXPORT_MEMORY_ALLOCATE_INFO_KHR };
++    exportMemoryAllocInfo.handleTypes = m_hAllocator->GetExternalMemoryHandleTypeFlags(m_MemoryTypeIndex);
++    if (exportMemoryAllocInfo.handleTypes != 0)
++    {
++        VmaPnextChainPushFront(&allocInfo, &exportMemoryAllocInfo);
++    }
++#endif // VMA_EXTERNAL_MEMORY
++
++    VkDeviceMemory mem = VK_NULL_HANDLE;
++    VkResult res = m_hAllocator->AllocateVulkanMemory(&allocInfo, &mem);
++    if (res < 0)
++    {
++        return res;
++    }
++
++    // New VkDeviceMemory successfully created.
++
++    // Create new Allocation for it.
++    VmaDeviceMemoryBlock* const pBlock = vma_new(m_hAllocator, VmaDeviceMemoryBlock)(m_hAllocator);
++    pBlock->Init(
++        m_hAllocator,
++        m_hParentPool,
++        m_MemoryTypeIndex,
++        mem,
++        allocInfo.allocationSize,
++        m_NextBlockId++,
++        m_Algorithm,
++        m_BufferImageGranularity);
++
++    m_Blocks.push_back(pBlock);
++    if (pNewBlockIndex != VMA_NULL)
++    {
++        *pNewBlockIndex = m_Blocks.size() - 1;
++    }
++
++    return VK_SUCCESS;
++}
++
++bool VmaBlockVector::HasEmptyBlock()
++{
++    for (size_t index = 0, count = m_Blocks.size(); index < count; ++index)
++    {
++        VmaDeviceMemoryBlock* const pBlock = m_Blocks[index];
++        if (pBlock->m_pMetadata->IsEmpty())
++        {
++            return true;
++        }
++    }
++    return false;
++}
++
++#if VMA_STATS_STRING_ENABLED
++void VmaBlockVector::PrintDetailedMap(class VmaJsonWriter& json)
++{
++    VmaMutexLockRead lock(m_Mutex, m_hAllocator->m_UseMutex);
++
++
++    json.BeginObject();
++    for (size_t i = 0; i < m_Blocks.size(); ++i)
++    {
++        json.BeginString();
++        json.ContinueString(m_Blocks[i]->GetId());
++        json.EndString();
++
++        json.BeginObject();
++        json.WriteString("MapRefCount");
++        json.WriteNumber(m_Blocks[i]->GetMapRefCount());
++
++        m_Blocks[i]->m_pMetadata->PrintDetailedMap(json);
++        json.EndObject();
++    }
++    json.EndObject();
++}
++#endif // VMA_STATS_STRING_ENABLED
++
++VkResult VmaBlockVector::CheckCorruption()
++{
++    if (!IsCorruptionDetectionEnabled())
++    {
++        return VK_ERROR_FEATURE_NOT_PRESENT;
++    }
++
++    VmaMutexLockRead lock(m_Mutex, m_hAllocator->m_UseMutex);
++    for (uint32_t blockIndex = 0; blockIndex < m_Blocks.size(); ++blockIndex)
++    {
++        VmaDeviceMemoryBlock* const pBlock = m_Blocks[blockIndex];
++        VMA_ASSERT(pBlock);
++        VkResult res = pBlock->CheckCorruption(m_hAllocator);
++        if (res != VK_SUCCESS)
++        {
++            return res;
++        }
++    }
++    return VK_SUCCESS;
++}
++
++#endif // _VMA_BLOCK_VECTOR_FUNCTIONS
++
++#ifndef _VMA_DEFRAGMENTATION_CONTEXT_FUNCTIONS
++VmaDefragmentationContext_T::VmaDefragmentationContext_T(
++    VmaAllocator hAllocator,
++    const VmaDefragmentationInfo& info)
++    : m_MaxPassBytes(info.maxBytesPerPass == 0 ? VK_WHOLE_SIZE : info.maxBytesPerPass),
++    m_MaxPassAllocations(info.maxAllocationsPerPass == 0 ? UINT32_MAX : info.maxAllocationsPerPass),
++    m_MoveAllocator(hAllocator->GetAllocationCallbacks()),
++    m_Moves(m_MoveAllocator)
++{
++    m_Algorithm = info.flags & VMA_DEFRAGMENTATION_FLAG_ALGORITHM_MASK;
++
++    if (info.pool != VMA_NULL)
++    {
++        m_BlockVectorCount = 1;
++        m_PoolBlockVector = &info.pool->m_BlockVector;
++        m_pBlockVectors = &m_PoolBlockVector;
++        m_PoolBlockVector->SetIncrementalSort(false);
++        m_PoolBlockVector->SortByFreeSize();
++    }
++    else
++    {
++        m_BlockVectorCount = hAllocator->GetMemoryTypeCount();
++        m_PoolBlockVector = VMA_NULL;
++        m_pBlockVectors = hAllocator->m_pBlockVectors;
++        for (uint32_t i = 0; i < m_BlockVectorCount; ++i)
++        {
++            VmaBlockVector* vector = m_pBlockVectors[i];
++            if (vector != VMA_NULL)
++            {
++                vector->SetIncrementalSort(false);
++                vector->SortByFreeSize();
++            }
++        }
++    }
++    
++    switch (m_Algorithm)
++    {
++    case 0: // Default algorithm
++        m_Algorithm = VMA_DEFRAGMENTATION_FLAG_ALGORITHM_BALANCED_BIT;
++    case VMA_DEFRAGMENTATION_FLAG_ALGORITHM_BALANCED_BIT:
++    {
++        m_AlgorithmState = vma_new_array(hAllocator, StateBalanced, m_BlockVectorCount);
++        break;
++    }
++    case VMA_DEFRAGMENTATION_FLAG_ALGORITHM_EXTENSIVE_BIT:
++    {
++        if (hAllocator->GetBufferImageGranularity() > 1)
++        {
++            m_AlgorithmState = vma_new_array(hAllocator, StateExtensive, m_BlockVectorCount);
++        }
++        break;
++    }
++    }
++}
++
++VmaDefragmentationContext_T::~VmaDefragmentationContext_T()
++{
++    if (m_PoolBlockVector != VMA_NULL)
++    {
++        m_PoolBlockVector->SetIncrementalSort(true);
++    }
++    else
++    {
++        for (uint32_t i = 0; i < m_BlockVectorCount; ++i)
++        {
++            VmaBlockVector* vector = m_pBlockVectors[i];
++            if (vector != VMA_NULL)
++                vector->SetIncrementalSort(true);
++        }
++    }
++
++    if (m_AlgorithmState)
++    {
++        switch (m_Algorithm)
++        {
++        case VMA_DEFRAGMENTATION_FLAG_ALGORITHM_BALANCED_BIT:
++            vma_delete_array(m_MoveAllocator.m_pCallbacks, reinterpret_cast<StateBalanced*>(m_AlgorithmState), m_BlockVectorCount);
++            break;
++        case VMA_DEFRAGMENTATION_FLAG_ALGORITHM_EXTENSIVE_BIT:
++            vma_delete_array(m_MoveAllocator.m_pCallbacks, reinterpret_cast<StateExtensive*>(m_AlgorithmState), m_BlockVectorCount);
++            break;
++        default:
++            VMA_ASSERT(0);
++        }
++    }
++}
++
++VkResult VmaDefragmentationContext_T::DefragmentPassBegin(VmaDefragmentationPassMoveInfo& moveInfo)
++{
++    if (m_PoolBlockVector != VMA_NULL)
++    {
++        VmaMutexLockWrite lock(m_PoolBlockVector->GetMutex(), m_PoolBlockVector->GetAllocator()->m_UseMutex);
++
++        if (m_PoolBlockVector->GetBlockCount() > 1)
++            ComputeDefragmentation(*m_PoolBlockVector, 0);
++        else if (m_PoolBlockVector->GetBlockCount() == 1)
++            ReallocWithinBlock(*m_PoolBlockVector, m_PoolBlockVector->GetBlock(0));
++    }
++    else
++    {
++        for (uint32_t i = 0; i < m_BlockVectorCount; ++i)
++        {
++            if (m_pBlockVectors[i] != VMA_NULL)
++            {
++                VmaMutexLockWrite lock(m_pBlockVectors[i]->GetMutex(), m_pBlockVectors[i]->GetAllocator()->m_UseMutex);
++
++                if (m_pBlockVectors[i]->GetBlockCount() > 1)
++                {
++                    if (ComputeDefragmentation(*m_pBlockVectors[i], i))
++                        break;
++                }
++                else if (m_pBlockVectors[i]->GetBlockCount() == 1)
++                {
++                    if (ReallocWithinBlock(*m_pBlockVectors[i], m_pBlockVectors[i]->GetBlock(0)))
++                        break;
++                }
++            }
++        }
++    }
++
++    moveInfo.moveCount = static_cast<uint32_t>(m_Moves.size());
++    if (moveInfo.moveCount > 0)
++    {
++        moveInfo.pMoves = m_Moves.data();
++        return VK_INCOMPLETE;
++    }
++
++    moveInfo.pMoves = VMA_NULL;
++    return VK_SUCCESS;
++}
++
++VkResult VmaDefragmentationContext_T::DefragmentPassEnd(VmaDefragmentationPassMoveInfo& moveInfo)
++{
++    VMA_ASSERT(moveInfo.moveCount > 0 ? moveInfo.pMoves != VMA_NULL : true);
++
++    VkResult result = VK_SUCCESS;
++    VmaStlAllocator<FragmentedBlock> blockAllocator(m_MoveAllocator.m_pCallbacks);
++    VmaVector<FragmentedBlock, VmaStlAllocator<FragmentedBlock>> immovableBlocks(blockAllocator);
++    VmaVector<FragmentedBlock, VmaStlAllocator<FragmentedBlock>> mappedBlocks(blockAllocator);
++
++    VmaAllocator allocator = VMA_NULL;
++    for (uint32_t i = 0; i < moveInfo.moveCount; ++i)
++    {
++        VmaDefragmentationMove& move = moveInfo.pMoves[i];
++        size_t prevCount = 0, currentCount = 0;
++        VkDeviceSize freedBlockSize = 0;
++
++        uint32_t vectorIndex;
++        VmaBlockVector* vector;
++        if (m_PoolBlockVector != VMA_NULL)
++        {
++            vectorIndex = 0;
++            vector = m_PoolBlockVector;
++        }
++        else
++        {
++            vectorIndex = move.srcAllocation->GetMemoryTypeIndex();
++            vector = m_pBlockVectors[vectorIndex];
++            VMA_ASSERT(vector != VMA_NULL);
++        }
++        
++        switch (move.operation)
++        {
++        case VMA_DEFRAGMENTATION_MOVE_OPERATION_COPY:
++        {
++            uint8_t mapCount = move.srcAllocation->SwapBlockAllocation(vector->m_hAllocator, move.dstTmpAllocation);
++            if (mapCount > 0)
++            {
++                allocator = vector->m_hAllocator;
++                VmaDeviceMemoryBlock* newMapBlock = move.srcAllocation->GetBlock();
++                bool notPresent = true;
++                for (FragmentedBlock& block : mappedBlocks)
++                {
++                    if (block.block == newMapBlock)
++                    {
++                        notPresent = false;
++                        block.data += mapCount;
++                        break;
++                    }
++                }
++                if (notPresent)
++                    mappedBlocks.push_back({ mapCount, newMapBlock });
++            }
++
++            // Scope for locks, Free have it's own lock
++            {
++                VmaMutexLockRead lock(vector->GetMutex(), vector->GetAllocator()->m_UseMutex);
++                prevCount = vector->GetBlockCount();
++                freedBlockSize = move.dstTmpAllocation->GetBlock()->m_pMetadata->GetSize();
++            }
++            vector->Free(move.dstTmpAllocation);
++            {
++                VmaMutexLockRead lock(vector->GetMutex(), vector->GetAllocator()->m_UseMutex);
++                currentCount = vector->GetBlockCount();
++            }
++
++            result = VK_INCOMPLETE;
++            break;
++        }
++        case VMA_DEFRAGMENTATION_MOVE_OPERATION_IGNORE:
++        {
++            m_PassStats.bytesMoved -= move.srcAllocation->GetSize();
++            --m_PassStats.allocationsMoved;
++            vector->Free(move.dstTmpAllocation);
++
++            VmaDeviceMemoryBlock* newBlock = move.srcAllocation->GetBlock();
++            bool notPresent = true;
++            for (const FragmentedBlock& block : immovableBlocks)
++            {
++                if (block.block == newBlock)
++                {
++                    notPresent = false;
++                    break;
++                }
++            }
++            if (notPresent)
++                immovableBlocks.push_back({ vectorIndex, newBlock });
++            break;
++        }
++        case VMA_DEFRAGMENTATION_MOVE_OPERATION_DESTROY:
++        {
++            m_PassStats.bytesMoved -= move.srcAllocation->GetSize();
++            --m_PassStats.allocationsMoved;
++            // Scope for locks, Free have it's own lock
++            {
++                VmaMutexLockRead lock(vector->GetMutex(), vector->GetAllocator()->m_UseMutex);
++                prevCount = vector->GetBlockCount();
++                freedBlockSize = move.srcAllocation->GetBlock()->m_pMetadata->GetSize();
++            }
++            vector->Free(move.srcAllocation);
++            {
++                VmaMutexLockRead lock(vector->GetMutex(), vector->GetAllocator()->m_UseMutex);
++                currentCount = vector->GetBlockCount();
++            }
++            freedBlockSize *= prevCount - currentCount;
++
++            VkDeviceSize dstBlockSize;
++            {
++                VmaMutexLockRead lock(vector->GetMutex(), vector->GetAllocator()->m_UseMutex);
++                dstBlockSize = move.dstTmpAllocation->GetBlock()->m_pMetadata->GetSize();
++            }
++            vector->Free(move.dstTmpAllocation);
++            {
++                VmaMutexLockRead lock(vector->GetMutex(), vector->GetAllocator()->m_UseMutex);
++                freedBlockSize += dstBlockSize * (currentCount - vector->GetBlockCount());
++                currentCount = vector->GetBlockCount();
++            }
++
++            result = VK_INCOMPLETE;
++            break;
++        }
++        default:
++            VMA_ASSERT(0);
++        }
++
++        if (prevCount > currentCount)
++        {
++            size_t freedBlocks = prevCount - currentCount;
++            m_PassStats.deviceMemoryBlocksFreed += static_cast<uint32_t>(freedBlocks);
++            m_PassStats.bytesFreed += freedBlockSize;
++        }
++
++        switch (m_Algorithm)
++        {
++        case VMA_DEFRAGMENTATION_FLAG_ALGORITHM_EXTENSIVE_BIT:
++        {
++            if (m_AlgorithmState != VMA_NULL)
++            {
++                // Avoid unnecessary tries to allocate when new free block is avaiable
++                StateExtensive& state = reinterpret_cast<StateExtensive*>(m_AlgorithmState)[vectorIndex];
++                if (state.firstFreeBlock != SIZE_MAX)
++                {
++                    const size_t diff = prevCount - currentCount;
++                    if (state.firstFreeBlock >= diff)
++                    {
++                        state.firstFreeBlock -= diff;
++                        if (state.firstFreeBlock != 0)
++                            state.firstFreeBlock -= vector->GetBlock(state.firstFreeBlock - 1)->m_pMetadata->IsEmpty();
++                    }
++                    else
++                        state.firstFreeBlock = 0;
++                }
++            }
++        }
++        }
++    }
++    moveInfo.moveCount = 0;
++    moveInfo.pMoves = VMA_NULL;
++    m_Moves.clear();
++
++    // Update stats
++    m_GlobalStats.allocationsMoved += m_PassStats.allocationsMoved;
++    m_GlobalStats.bytesFreed += m_PassStats.bytesFreed;
++    m_GlobalStats.bytesMoved += m_PassStats.bytesMoved;
++    m_GlobalStats.deviceMemoryBlocksFreed += m_PassStats.deviceMemoryBlocksFreed;
++    m_PassStats = { 0 };
++
++    // Move blocks with immovable allocations according to algorithm
++    if (immovableBlocks.size() > 0)
++    {
++        switch (m_Algorithm)
++        {
++        case VMA_DEFRAGMENTATION_FLAG_ALGORITHM_EXTENSIVE_BIT:
++        {
++            if (m_AlgorithmState != VMA_NULL)
++            {
++                bool swapped = false;
++                // Move to the start of free blocks range
++                for (const FragmentedBlock& block : immovableBlocks)
++                {
++                    StateExtensive& state = reinterpret_cast<StateExtensive*>(m_AlgorithmState)[block.data];
++                    if (state.operation != StateExtensive::Operation::Cleanup)
++                    {
++                        VmaBlockVector* vector = m_pBlockVectors[block.data];
++                        VmaMutexLockWrite lock(vector->GetMutex(), vector->GetAllocator()->m_UseMutex);
++
++                        for (size_t i = 0, count = vector->GetBlockCount() - m_ImmovableBlockCount; i < count; ++i)
++                        {
++                            if (vector->GetBlock(i) == block.block)
++                            {
++                                VMA_SWAP(vector->m_Blocks[i], vector->m_Blocks[vector->GetBlockCount() - ++m_ImmovableBlockCount]);
++                                if (state.firstFreeBlock != SIZE_MAX)
++                                {
++                                    if (i + 1 < state.firstFreeBlock)
++                                    {
++                                        if (state.firstFreeBlock > 1)
++                                            VMA_SWAP(vector->m_Blocks[i], vector->m_Blocks[--state.firstFreeBlock]);
++                                        else
++                                            --state.firstFreeBlock;
++                                    }
++                                }
++                                swapped = true;
++                                break;
++                            }
++                        }
++                    }
++                }
++                if (swapped)
++                    result = VK_INCOMPLETE;
++                break;
++            }
++        }
++        default:
++        {
++            // Move to the begining
++            for (const FragmentedBlock& block : immovableBlocks)
++            {
++                VmaBlockVector* vector = m_pBlockVectors[block.data];
++                VmaMutexLockWrite lock(vector->GetMutex(), vector->GetAllocator()->m_UseMutex);
++
++                for (size_t i = m_ImmovableBlockCount; i < vector->GetBlockCount(); ++i)
++                {
++                    if (vector->GetBlock(i) == block.block)
++                    {
++                        VMA_SWAP(vector->m_Blocks[i], vector->m_Blocks[m_ImmovableBlockCount++]);
++                        break;
++                    }
++                }
++            }
++            break;
++        }
++        }
++    }
++
++    // Bulk-map destination blocks
++    for (const FragmentedBlock& block : mappedBlocks)
++    {
++        VkResult res = block.block->Map(allocator, block.data, VMA_NULL);
++        VMA_ASSERT(res == VK_SUCCESS);
++    }
++    return result;
++}
++
++bool VmaDefragmentationContext_T::ComputeDefragmentation(VmaBlockVector& vector, size_t index)
++{
++    switch (m_Algorithm)
++    {
++    case VMA_DEFRAGMENTATION_FLAG_ALGORITHM_FAST_BIT:
++        return ComputeDefragmentation_Fast(vector);
++    default:
++        VMA_ASSERT(0);
++    case VMA_DEFRAGMENTATION_FLAG_ALGORITHM_BALANCED_BIT:
++        return ComputeDefragmentation_Balanced(vector, index, true);
++    case VMA_DEFRAGMENTATION_FLAG_ALGORITHM_FULL_BIT:
++        return ComputeDefragmentation_Full(vector);
++    case VMA_DEFRAGMENTATION_FLAG_ALGORITHM_EXTENSIVE_BIT:
++        return ComputeDefragmentation_Extensive(vector, index);
++    }
++}
++
++VmaDefragmentationContext_T::MoveAllocationData VmaDefragmentationContext_T::GetMoveData(
++    VmaAllocHandle handle, VmaBlockMetadata* metadata)
++{
++    MoveAllocationData moveData;
++    moveData.move.srcAllocation = (VmaAllocation)metadata->GetAllocationUserData(handle);
++    moveData.size = moveData.move.srcAllocation->GetSize();
++    moveData.alignment = moveData.move.srcAllocation->GetAlignment();
++    moveData.type = moveData.move.srcAllocation->GetSuballocationType();
++    moveData.flags = 0;
++
++    if (moveData.move.srcAllocation->IsPersistentMap())
++        moveData.flags |= VMA_ALLOCATION_CREATE_MAPPED_BIT;
++    if (moveData.move.srcAllocation->IsMappingAllowed())
++        moveData.flags |= VMA_ALLOCATION_CREATE_HOST_ACCESS_SEQUENTIAL_WRITE_BIT | VMA_ALLOCATION_CREATE_HOST_ACCESS_RANDOM_BIT;
++
++    return moveData;
++}
++
++VmaDefragmentationContext_T::CounterStatus VmaDefragmentationContext_T::CheckCounters(VkDeviceSize bytes)
++{
++    // Ignore allocation if will exceed max size for copy
++    if (m_PassStats.bytesMoved + bytes > m_MaxPassBytes)
++    {
++        if (++m_IgnoredAllocs < MAX_ALLOCS_TO_IGNORE)
++            return CounterStatus::Ignore;
++        else
++            return CounterStatus::End;
++    }
++    return CounterStatus::Pass;
++}
++
++bool VmaDefragmentationContext_T::IncrementCounters(VkDeviceSize bytes)
++{
++    m_PassStats.bytesMoved += bytes;
++    // Early return when max found
++    if (++m_PassStats.allocationsMoved >= m_MaxPassAllocations || m_PassStats.bytesMoved >= m_MaxPassBytes)
++    {
++        VMA_ASSERT(m_PassStats.allocationsMoved == m_MaxPassAllocations ||
++            m_PassStats.bytesMoved == m_MaxPassBytes && "Exceeded maximal pass threshold!");
++        return true;
++    }
++    return false;
++}
++
++bool VmaDefragmentationContext_T::ReallocWithinBlock(VmaBlockVector& vector, VmaDeviceMemoryBlock* block)
++{
++    VmaBlockMetadata* metadata = block->m_pMetadata;
++
++    for (VmaAllocHandle handle = metadata->GetAllocationListBegin();
++        handle != VK_NULL_HANDLE;
++        handle = metadata->GetNextAllocation(handle))
++    {
++        MoveAllocationData moveData = GetMoveData(handle, metadata);
++        // Ignore newly created allocations by defragmentation algorithm
++        if (moveData.move.srcAllocation->GetUserData() == this)
++            continue;
++        switch (CheckCounters(moveData.move.srcAllocation->GetSize()))
++        {
++        case CounterStatus::Ignore:
++            continue;
++        case CounterStatus::End:
++            return true;
++        default:
++            VMA_ASSERT(0);
++        case CounterStatus::Pass:
++            break;
++        }
++        
++        VkDeviceSize offset = moveData.move.srcAllocation->GetOffset();
++        if (offset != 0 && metadata->GetSumFreeSize() >= moveData.size)
++        {
++            VmaAllocationRequest request = {};
++            if (metadata->CreateAllocationRequest(
++                moveData.size,
++                moveData.alignment,
++                false,
++                moveData.type,
++                VMA_ALLOCATION_CREATE_STRATEGY_MIN_OFFSET_BIT,
++                &request))
++            {
++                if (metadata->GetAllocationOffset(request.allocHandle) < offset)
++                {
++                    if (vector.CommitAllocationRequest(
++                        request,
++                        block,
++                        moveData.alignment,
++                        moveData.flags,
++                        this,
++                        moveData.type,
++                        &moveData.move.dstTmpAllocation) == VK_SUCCESS)
++                    {
++                        m_Moves.push_back(moveData.move);
++                        if (IncrementCounters(moveData.size))
++                            return true;
++                    }
++                }
++            }
++        }
++    }
++    return false;
++}
++
++bool VmaDefragmentationContext_T::AllocInOtherBlock(size_t start, size_t end, MoveAllocationData& data, VmaBlockVector& vector)
++{
++    for (; start < end; ++start)
++    {
++        VmaDeviceMemoryBlock* dstBlock = vector.GetBlock(start);
++        if (dstBlock->m_pMetadata->GetSumFreeSize() >= data.size)
++        {
++            if (vector.AllocateFromBlock(dstBlock,
++                data.size,
++                data.alignment,
++                data.flags,
++                this,
++                data.type,
++                0,
++                &data.move.dstTmpAllocation) == VK_SUCCESS)
++            {
++                m_Moves.push_back(data.move);
++                if (IncrementCounters(data.size))
++                    return true;
++                break;
++            }
++        }
++    }
++    return false;
++}
++
++bool VmaDefragmentationContext_T::ComputeDefragmentation_Fast(VmaBlockVector& vector)
++{
++    // Move only between blocks
++
++    // Go through allocations in last blocks and try to fit them inside first ones
++    for (size_t i = vector.GetBlockCount() - 1; i > m_ImmovableBlockCount; --i)
++    {
++        VmaBlockMetadata* metadata = vector.GetBlock(i)->m_pMetadata;
++
++        for (VmaAllocHandle handle = metadata->GetAllocationListBegin();
++            handle != VK_NULL_HANDLE;
++            handle = metadata->GetNextAllocation(handle))
++        {
++            MoveAllocationData moveData = GetMoveData(handle, metadata);
++            // Ignore newly created allocations by defragmentation algorithm
++            if (moveData.move.srcAllocation->GetUserData() == this)
++                continue;
++            switch (CheckCounters(moveData.move.srcAllocation->GetSize()))
++            {
++            case CounterStatus::Ignore:
++                continue;
++            case CounterStatus::End:
++                return true;
++            default:
++                VMA_ASSERT(0);
++            case CounterStatus::Pass:
++                break;
++            }
++
++            // Check all previous blocks for free space
++            if (AllocInOtherBlock(0, i, moveData, vector))
++                return true;
++        }
++    }
++    return false;
++}
++
++bool VmaDefragmentationContext_T::ComputeDefragmentation_Balanced(VmaBlockVector& vector, size_t index, bool update)
++{
++    // Go over every allocation and try to fit it in previous blocks at lowest offsets,
++    // if not possible: realloc within single block to minimize offset (exclude offset == 0),
++    // but only if there are noticable gaps between them (some heuristic, ex. average size of allocation in block)
++    VMA_ASSERT(m_AlgorithmState != VMA_NULL);
++
++    StateBalanced& vectorState = reinterpret_cast<StateBalanced*>(m_AlgorithmState)[index];
++    if (update && vectorState.avgAllocSize == UINT64_MAX)
++        UpdateVectorStatistics(vector, vectorState);
++
++    const size_t startMoveCount = m_Moves.size();
++    VkDeviceSize minimalFreeRegion = vectorState.avgFreeSize / 2;
++    for (size_t i = vector.GetBlockCount() - 1; i > m_ImmovableBlockCount; --i)
++    {
++        VmaDeviceMemoryBlock* block = vector.GetBlock(i);
++        VmaBlockMetadata* metadata = block->m_pMetadata;
++        VkDeviceSize prevFreeRegionSize = 0;
++
++        for (VmaAllocHandle handle = metadata->GetAllocationListBegin();
++            handle != VK_NULL_HANDLE;
++            handle = metadata->GetNextAllocation(handle))
++        {
++            MoveAllocationData moveData = GetMoveData(handle, metadata);
++            // Ignore newly created allocations by defragmentation algorithm
++            if (moveData.move.srcAllocation->GetUserData() == this)
++                continue;
++            switch (CheckCounters(moveData.move.srcAllocation->GetSize()))
++            {
++            case CounterStatus::Ignore:
++                continue;
++            case CounterStatus::End:
++                return true;
++            default:
++                VMA_ASSERT(0);
++            case CounterStatus::Pass:
++                break;
++            }
++
++            // Check all previous blocks for free space
++            const size_t prevMoveCount = m_Moves.size();
++            if (AllocInOtherBlock(0, i, moveData, vector))
++                return true;
++
++            VkDeviceSize nextFreeRegionSize = metadata->GetNextFreeRegionSize(handle);
++            // If no room found then realloc within block for lower offset
++            VkDeviceSize offset = moveData.move.srcAllocation->GetOffset();
++            if (prevMoveCount == m_Moves.size() && offset != 0 && metadata->GetSumFreeSize() >= moveData.size)
++            {
++                // Check if realloc will make sense
++                if (prevFreeRegionSize >= minimalFreeRegion ||
++                    nextFreeRegionSize >= minimalFreeRegion ||
++                    moveData.size <= vectorState.avgFreeSize ||
++                    moveData.size <= vectorState.avgAllocSize)
++                {
++                    VmaAllocationRequest request = {};
++                    if (metadata->CreateAllocationRequest(
++                        moveData.size,
++                        moveData.alignment,
++                        false,
++                        moveData.type,
++                        VMA_ALLOCATION_CREATE_STRATEGY_MIN_OFFSET_BIT,
++                        &request))
++                    {
++                        if (metadata->GetAllocationOffset(request.allocHandle) < offset)
++                        {
++                            if (vector.CommitAllocationRequest(
++                                request,
++                                block,
++                                moveData.alignment,
++                                moveData.flags,
++                                this,
++                                moveData.type,
++                                &moveData.move.dstTmpAllocation) == VK_SUCCESS)
++                            {
++                                m_Moves.push_back(moveData.move);
++                                if (IncrementCounters(moveData.size))
++                                    return true;
++                            }
++                        }
++                    }
++                }
++            }
++            prevFreeRegionSize = nextFreeRegionSize;
++        }
++    }
++    
++    // No moves perfomed, update statistics to current vector state
++    if (startMoveCount == m_Moves.size() && !update)
++    {
++        vectorState.avgAllocSize = UINT64_MAX;
++        return ComputeDefragmentation_Balanced(vector, index, false);
++    }
++    return false;
++}
++
++bool VmaDefragmentationContext_T::ComputeDefragmentation_Full(VmaBlockVector& vector)
++{
++    // Go over every allocation and try to fit it in previous blocks at lowest offsets,
++    // if not possible: realloc within single block to minimize offset (exclude offset == 0)
++
++    for (size_t i = vector.GetBlockCount() - 1; i > m_ImmovableBlockCount; --i)
++    {
++        VmaDeviceMemoryBlock* block = vector.GetBlock(i);
++        VmaBlockMetadata* metadata = block->m_pMetadata;
++
++        for (VmaAllocHandle handle = metadata->GetAllocationListBegin();
++            handle != VK_NULL_HANDLE;
++            handle = metadata->GetNextAllocation(handle))
++        {
++            MoveAllocationData moveData = GetMoveData(handle, metadata);
++            // Ignore newly created allocations by defragmentation algorithm
++            if (moveData.move.srcAllocation->GetUserData() == this)
++                continue;
++            switch (CheckCounters(moveData.move.srcAllocation->GetSize()))
++            {
++            case CounterStatus::Ignore:
++                continue;
++            case CounterStatus::End:
++                return true;
++            default:
++                VMA_ASSERT(0);
++            case CounterStatus::Pass:
++                break;
++            }
++
++            // Check all previous blocks for free space
++            const size_t prevMoveCount = m_Moves.size();
++            if (AllocInOtherBlock(0, i, moveData, vector))
++                return true;
++
++            // If no room found then realloc within block for lower offset
++            VkDeviceSize offset = moveData.move.srcAllocation->GetOffset();
++            if (prevMoveCount == m_Moves.size() && offset != 0 && metadata->GetSumFreeSize() >= moveData.size)
++            {
++                VmaAllocationRequest request = {};
++                if (metadata->CreateAllocationRequest(
++                    moveData.size,
++                    moveData.alignment,
++                    false,
++                    moveData.type,
++                    VMA_ALLOCATION_CREATE_STRATEGY_MIN_OFFSET_BIT,
++                    &request))
++                {
++                    if (metadata->GetAllocationOffset(request.allocHandle) < offset)
++                    {
++                        if (vector.CommitAllocationRequest(
++                            request,
++                            block,
++                            moveData.alignment,
++                            moveData.flags,
++                            this,
++                            moveData.type,
++                            &moveData.move.dstTmpAllocation) == VK_SUCCESS)
++                        {
++                            m_Moves.push_back(moveData.move);
++                            if (IncrementCounters(moveData.size))
++                                return true;
++                        }
++                    }
++                }
++            }
++        }
++    }
++    return false;
++}
++
++bool VmaDefragmentationContext_T::ComputeDefragmentation_Extensive(VmaBlockVector& vector, size_t index)
++{
++    // First free single block, then populate it to the brim, then free another block, and so on
++
++    // Fallback to previous algorithm since without granularity conflicts it can achieve max packing
++    if (vector.m_BufferImageGranularity == 1)
++        return ComputeDefragmentation_Full(vector);
++
++    VMA_ASSERT(m_AlgorithmState != VMA_NULL);
++
++    StateExtensive& vectorState = reinterpret_cast<StateExtensive*>(m_AlgorithmState)[index];
++
++    bool texturePresent = false, bufferPresent = false, otherPresent = false;
++    switch (vectorState.operation)
++    {
++    case StateExtensive::Operation::Done: // Vector defragmented
++        return false;
++    case StateExtensive::Operation::FindFreeBlockBuffer:
++    case StateExtensive::Operation::FindFreeBlockTexture:
++    case StateExtensive::Operation::FindFreeBlockAll:
++    {
++        // No more blocks to free, just perform fast realloc and move to cleanup
++        if (vectorState.firstFreeBlock == 0)
++        {
++            vectorState.operation = StateExtensive::Operation::Cleanup;
++            return ComputeDefragmentation_Fast(vector);
++        }
++
++        // No free blocks, have to clear last one
++        size_t last = (vectorState.firstFreeBlock == SIZE_MAX ? vector.GetBlockCount() : vectorState.firstFreeBlock) - 1;
++        VmaBlockMetadata* freeMetadata = vector.GetBlock(last)->m_pMetadata;
++
++        const size_t prevMoveCount = m_Moves.size();
++        for (VmaAllocHandle handle = freeMetadata->GetAllocationListBegin();
++            handle != VK_NULL_HANDLE;
++            handle = freeMetadata->GetNextAllocation(handle))
++        {
++            MoveAllocationData moveData = GetMoveData(handle, freeMetadata);
++            switch (CheckCounters(moveData.move.srcAllocation->GetSize()))
++            {
++            case CounterStatus::Ignore:
++                continue;
++            case CounterStatus::End:
++                return true;
++            default:
++                VMA_ASSERT(0);
++            case CounterStatus::Pass:
++                break;
++            }
++
++            // Check all previous blocks for free space
++            if (AllocInOtherBlock(0, last, moveData, vector))
++            {
++                // Full clear performed already
++                if (prevMoveCount != m_Moves.size() && freeMetadata->GetNextAllocation(handle) == VK_NULL_HANDLE)
++                    reinterpret_cast<size_t*>(m_AlgorithmState)[index] = last;
++                return true;
++            }
++        }
++
++        if (prevMoveCount == m_Moves.size())
++        {
++            // Cannot perform full clear, have to move data in other blocks around
++            if (last != 0)
++            {
++                for (size_t i = last - 1; i; --i)
++                {
++                    if (ReallocWithinBlock(vector, vector.GetBlock(i)))
++                        return true;
++                }
++            }
++
++            if (prevMoveCount == m_Moves.size())
++            {
++                // No possible reallocs within blocks, try to move them around fast
++                return ComputeDefragmentation_Fast(vector);
++            }
++        }
++        else
++        {
++            switch (vectorState.operation)
++            {
++            case StateExtensive::Operation::FindFreeBlockBuffer:
++                vectorState.operation = StateExtensive::Operation::MoveBuffers;
++                break;
++            default:
++                VMA_ASSERT(0);
++            case StateExtensive::Operation::FindFreeBlockTexture:
++                vectorState.operation = StateExtensive::Operation::MoveTextures;
++                break;
++            case StateExtensive::Operation::FindFreeBlockAll:
++                vectorState.operation = StateExtensive::Operation::MoveAll;
++                break;
++            }
++            vectorState.firstFreeBlock = last;
++            // Nothing done, block found without reallocations, can perform another reallocs in same pass
++            return ComputeDefragmentation_Extensive(vector, index);
++        }
++        break;
++    }
++    case StateExtensive::Operation::MoveTextures:
++    {
++        if (MoveDataToFreeBlocks(VMA_SUBALLOCATION_TYPE_IMAGE_OPTIMAL, vector,
++            vectorState.firstFreeBlock, texturePresent, bufferPresent, otherPresent))
++        {
++            if (texturePresent)
++            {
++                vectorState.operation = StateExtensive::Operation::FindFreeBlockTexture;
++                return ComputeDefragmentation_Extensive(vector, index);
++            }
++
++            if (!bufferPresent && !otherPresent)
++            {
++                vectorState.operation = StateExtensive::Operation::Cleanup;
++                break;
++            }
++
++            // No more textures to move, check buffers
++            vectorState.operation = StateExtensive::Operation::MoveBuffers;
++            bufferPresent = false;
++            otherPresent = false;
++        }
++        else
++            break;
++    }
++    case StateExtensive::Operation::MoveBuffers:
++    {
++        if (MoveDataToFreeBlocks(VMA_SUBALLOCATION_TYPE_BUFFER, vector,
++            vectorState.firstFreeBlock, texturePresent, bufferPresent, otherPresent))
++        {
++            if (bufferPresent)
++            {
++                vectorState.operation = StateExtensive::Operation::FindFreeBlockBuffer;
++                return ComputeDefragmentation_Extensive(vector, index);
++            }
++
++            if (!otherPresent)
++            {
++                vectorState.operation = StateExtensive::Operation::Cleanup;
++                break;
++            }
++
++            // No more buffers to move, check all others
++            vectorState.operation = StateExtensive::Operation::MoveAll;
++            otherPresent = false;
++        }
++        else
++            break;
++    }
++    case StateExtensive::Operation::MoveAll:
++    {
++        if (MoveDataToFreeBlocks(VMA_SUBALLOCATION_TYPE_FREE, vector,
++            vectorState.firstFreeBlock, texturePresent, bufferPresent, otherPresent))
++        {
++            if (otherPresent)
++            {
++                vectorState.operation = StateExtensive::Operation::FindFreeBlockBuffer;
++                return ComputeDefragmentation_Extensive(vector, index);
++            }
++            // Everything moved
++            vectorState.operation = StateExtensive::Operation::Cleanup;
++        }
++        break;
++    }
++    case StateExtensive::Operation::Cleanup:
++        // Cleanup is handled below so that other operations may reuse the cleanup code. This case is here to prevent the unhandled enum value warning (C4062).
++        break;
++    }
++
++    if (vectorState.operation == StateExtensive::Operation::Cleanup)
++    {
++        // All other work done, pack data in blocks even tighter if possible
++        const size_t prevMoveCount = m_Moves.size();
++        for (size_t i = 0; i < vector.GetBlockCount(); ++i)
++        {
++            if (ReallocWithinBlock(vector, vector.GetBlock(i)))
++                return true;
++        }
++
++        if (prevMoveCount == m_Moves.size())
++            vectorState.operation = StateExtensive::Operation::Done;
++    }
++    return false;
++}
++
++void VmaDefragmentationContext_T::UpdateVectorStatistics(VmaBlockVector& vector, StateBalanced& state)
++{
++    size_t allocCount = 0;
++    size_t freeCount = 0;
++    state.avgFreeSize = 0;
++    state.avgAllocSize = 0;
++
++    for (size_t i = 0; i < vector.GetBlockCount(); ++i)
++    {
++        VmaBlockMetadata* metadata = vector.GetBlock(i)->m_pMetadata;
++
++        allocCount += metadata->GetAllocationCount();
++        freeCount += metadata->GetFreeRegionsCount();
++        state.avgFreeSize += metadata->GetSumFreeSize();
++        state.avgAllocSize += metadata->GetSize();
++    }
++
++    state.avgAllocSize = (state.avgAllocSize - state.avgFreeSize) / allocCount;
++    state.avgFreeSize /= freeCount;
++}
++
++bool VmaDefragmentationContext_T::MoveDataToFreeBlocks(VmaSuballocationType currentType, 
++    VmaBlockVector& vector, size_t firstFreeBlock,
++    bool& texturePresent, bool& bufferPresent, bool& otherPresent)
++{
++    const size_t prevMoveCount = m_Moves.size();
++    for (size_t i = firstFreeBlock ; i;)
++    {
++        VmaDeviceMemoryBlock* block = vector.GetBlock(--i);
++        VmaBlockMetadata* metadata = block->m_pMetadata;
++
++        for (VmaAllocHandle handle = metadata->GetAllocationListBegin();
++            handle != VK_NULL_HANDLE;
++            handle = metadata->GetNextAllocation(handle))
++        {
++            MoveAllocationData moveData = GetMoveData(handle, metadata);
++            // Ignore newly created allocations by defragmentation algorithm
++            if (moveData.move.srcAllocation->GetUserData() == this)
++                continue;
++            switch (CheckCounters(moveData.move.srcAllocation->GetSize()))
++            {
++            case CounterStatus::Ignore:
++                continue;
++            case CounterStatus::End:
++                return true;
++            default:
++                VMA_ASSERT(0);
++            case CounterStatus::Pass:
++                break;
++            }
++
++            // Move only single type of resources at once
++            if (!VmaIsBufferImageGranularityConflict(moveData.type, currentType))
++            {
++                // Try to fit allocation into free blocks
++                if (AllocInOtherBlock(firstFreeBlock, vector.GetBlockCount(), moveData, vector))
++                    return false;
++            }
++
++            if (!VmaIsBufferImageGranularityConflict(moveData.type, VMA_SUBALLOCATION_TYPE_IMAGE_OPTIMAL))
++                texturePresent = true;
++            else if (!VmaIsBufferImageGranularityConflict(moveData.type, VMA_SUBALLOCATION_TYPE_BUFFER))
++                bufferPresent = true;
++            else
++                otherPresent = true;
++        }
++    }
++    return prevMoveCount == m_Moves.size();
++}
++#endif // _VMA_DEFRAGMENTATION_CONTEXT_FUNCTIONS
++
++#ifndef _VMA_POOL_T_FUNCTIONS
++VmaPool_T::VmaPool_T(
++    VmaAllocator hAllocator,
++    const VmaPoolCreateInfo& createInfo,
++    VkDeviceSize preferredBlockSize)
++    : m_BlockVector(
++        hAllocator,
++        this, // hParentPool
++        createInfo.memoryTypeIndex,
++        createInfo.blockSize != 0 ? createInfo.blockSize : preferredBlockSize,
++        createInfo.minBlockCount,
++        createInfo.maxBlockCount,
++        (createInfo.flags& VMA_POOL_CREATE_IGNORE_BUFFER_IMAGE_GRANULARITY_BIT) != 0 ? 1 : hAllocator->GetBufferImageGranularity(),
++        createInfo.blockSize != 0, // explicitBlockSize
++        createInfo.flags & VMA_POOL_CREATE_ALGORITHM_MASK, // algorithm
++        createInfo.priority,
++        VMA_MAX(hAllocator->GetMemoryTypeMinAlignment(createInfo.memoryTypeIndex), createInfo.minAllocationAlignment),
++        createInfo.pMemoryAllocateNext),
++    m_Id(0),
++    m_Name(VMA_NULL) {}
++
++VmaPool_T::~VmaPool_T()
++{
++    VMA_ASSERT(m_PrevPool == VMA_NULL && m_NextPool == VMA_NULL);
++}
++
++void VmaPool_T::SetName(const char* pName)
++{
++    const VkAllocationCallbacks* allocs = m_BlockVector.GetAllocator()->GetAllocationCallbacks();
++    VmaFreeString(allocs, m_Name);
++
++    if (pName != VMA_NULL)
++    {
++        m_Name = VmaCreateStringCopy(allocs, pName);
++    }
++    else
++    {
++        m_Name = VMA_NULL;
++    }
++}
++#endif // _VMA_POOL_T_FUNCTIONS
++
++#ifndef _VMA_ALLOCATOR_T_FUNCTIONS
++VmaAllocator_T::VmaAllocator_T(const VmaAllocatorCreateInfo* pCreateInfo) :
++    m_UseMutex((pCreateInfo->flags & VMA_ALLOCATOR_CREATE_EXTERNALLY_SYNCHRONIZED_BIT) == 0),
++    m_VulkanApiVersion(pCreateInfo->vulkanApiVersion != 0 ? pCreateInfo->vulkanApiVersion : VK_API_VERSION_1_0),
++    m_UseKhrDedicatedAllocation((pCreateInfo->flags & VMA_ALLOCATOR_CREATE_KHR_DEDICATED_ALLOCATION_BIT) != 0),
++    m_UseKhrBindMemory2((pCreateInfo->flags & VMA_ALLOCATOR_CREATE_KHR_BIND_MEMORY2_BIT) != 0),
++    m_UseExtMemoryBudget((pCreateInfo->flags & VMA_ALLOCATOR_CREATE_EXT_MEMORY_BUDGET_BIT) != 0),
++    m_UseAmdDeviceCoherentMemory((pCreateInfo->flags & VMA_ALLOCATOR_CREATE_AMD_DEVICE_COHERENT_MEMORY_BIT) != 0),
++    m_UseKhrBufferDeviceAddress((pCreateInfo->flags & VMA_ALLOCATOR_CREATE_BUFFER_DEVICE_ADDRESS_BIT) != 0),
++    m_UseExtMemoryPriority((pCreateInfo->flags & VMA_ALLOCATOR_CREATE_EXT_MEMORY_PRIORITY_BIT) != 0),
++    m_hDevice(pCreateInfo->device),
++    m_hInstance(pCreateInfo->instance),
++    m_AllocationCallbacksSpecified(pCreateInfo->pAllocationCallbacks != VMA_NULL),
++    m_AllocationCallbacks(pCreateInfo->pAllocationCallbacks ?
++        *pCreateInfo->pAllocationCallbacks : VmaEmptyAllocationCallbacks),
++    m_AllocationObjectAllocator(&m_AllocationCallbacks),
++    m_HeapSizeLimitMask(0),
++    m_DeviceMemoryCount(0),
++    m_PreferredLargeHeapBlockSize(0),
++    m_PhysicalDevice(pCreateInfo->physicalDevice),
++    m_GpuDefragmentationMemoryTypeBits(UINT32_MAX),
++    m_NextPoolId(0),
++    m_GlobalMemoryTypeBits(UINT32_MAX)
++{
++    if(m_VulkanApiVersion >= VK_MAKE_VERSION(1, 1, 0))
++    {
++        m_UseKhrDedicatedAllocation = false;
++        m_UseKhrBindMemory2 = false;
++    }
++
++    if(VMA_DEBUG_DETECT_CORRUPTION)
++    {
++        // Needs to be multiply of uint32_t size because we are going to write VMA_CORRUPTION_DETECTION_MAGIC_VALUE to it.
++        VMA_ASSERT(VMA_DEBUG_MARGIN % sizeof(uint32_t) == 0);
++    }
++
++    VMA_ASSERT(pCreateInfo->physicalDevice && pCreateInfo->device && pCreateInfo->instance);
++
++    if(m_VulkanApiVersion < VK_MAKE_VERSION(1, 1, 0))
++    {
++#if !(VMA_DEDICATED_ALLOCATION)
++        if((pCreateInfo->flags & VMA_ALLOCATOR_CREATE_KHR_DEDICATED_ALLOCATION_BIT) != 0)
++        {
++            VMA_ASSERT(0 && "VMA_ALLOCATOR_CREATE_KHR_DEDICATED_ALLOCATION_BIT set but required extensions are disabled by preprocessor macros.");
++        }
++#endif
++#if !(VMA_BIND_MEMORY2)
++        if((pCreateInfo->flags & VMA_ALLOCATOR_CREATE_KHR_BIND_MEMORY2_BIT) != 0)
++        {
++            VMA_ASSERT(0 && "VMA_ALLOCATOR_CREATE_KHR_BIND_MEMORY2_BIT set but required extension is disabled by preprocessor macros.");
++        }
++#endif
++    }
++#if !(VMA_MEMORY_BUDGET)
++    if((pCreateInfo->flags & VMA_ALLOCATOR_CREATE_EXT_MEMORY_BUDGET_BIT) != 0)
++    {
++        VMA_ASSERT(0 && "VMA_ALLOCATOR_CREATE_EXT_MEMORY_BUDGET_BIT set but required extension is disabled by preprocessor macros.");
++    }
++#endif
++#if !(VMA_BUFFER_DEVICE_ADDRESS)
++    if(m_UseKhrBufferDeviceAddress)
++    {
++        VMA_ASSERT(0 && "VMA_ALLOCATOR_CREATE_BUFFER_DEVICE_ADDRESS_BIT is set but required extension or Vulkan 1.2 is not available in your Vulkan header or its support in VMA has been disabled by a preprocessor macro.");
++    }
++#endif
++#if VMA_VULKAN_VERSION < 1002000
++    if(m_VulkanApiVersion >= VK_MAKE_VERSION(1, 2, 0))
++    {
++        VMA_ASSERT(0 && "vulkanApiVersion >= VK_API_VERSION_1_2 but required Vulkan version is disabled by preprocessor macros.");
++    }
++#endif
++#if VMA_VULKAN_VERSION < 1001000
++    if(m_VulkanApiVersion >= VK_MAKE_VERSION(1, 1, 0))
++    {
++        VMA_ASSERT(0 && "vulkanApiVersion >= VK_API_VERSION_1_1 but required Vulkan version is disabled by preprocessor macros.");
++    }
++#endif
++#if !(VMA_MEMORY_PRIORITY)
++    if(m_UseExtMemoryPriority)
++    {
++        VMA_ASSERT(0 && "VMA_ALLOCATOR_CREATE_EXT_MEMORY_PRIORITY_BIT is set but required extension is not available in your Vulkan header or its support in VMA has been disabled by a preprocessor macro.");
++    }
++#endif
++
++    memset(&m_DeviceMemoryCallbacks, 0 ,sizeof(m_DeviceMemoryCallbacks));
++    memset(&m_PhysicalDeviceProperties, 0, sizeof(m_PhysicalDeviceProperties));
++    memset(&m_MemProps, 0, sizeof(m_MemProps));
++
++    memset(&m_pBlockVectors, 0, sizeof(m_pBlockVectors));
++    memset(&m_VulkanFunctions, 0, sizeof(m_VulkanFunctions));
++
++#if VMA_EXTERNAL_MEMORY
++    memset(&m_TypeExternalMemoryHandleTypes, 0, sizeof(m_TypeExternalMemoryHandleTypes));
++#endif // #if VMA_EXTERNAL_MEMORY
++
++    if(pCreateInfo->pDeviceMemoryCallbacks != VMA_NULL)
++    {
++        m_DeviceMemoryCallbacks.pUserData = pCreateInfo->pDeviceMemoryCallbacks->pUserData;
++        m_DeviceMemoryCallbacks.pfnAllocate = pCreateInfo->pDeviceMemoryCallbacks->pfnAllocate;
++        m_DeviceMemoryCallbacks.pfnFree = pCreateInfo->pDeviceMemoryCallbacks->pfnFree;
++    }
++
++    ImportVulkanFunctions(pCreateInfo->pVulkanFunctions);
++
++    (*m_VulkanFunctions.vkGetPhysicalDeviceProperties)(m_PhysicalDevice, &m_PhysicalDeviceProperties);
++    (*m_VulkanFunctions.vkGetPhysicalDeviceMemoryProperties)(m_PhysicalDevice, &m_MemProps);
++
++    VMA_ASSERT(VmaIsPow2(VMA_MIN_ALIGNMENT));
++    VMA_ASSERT(VmaIsPow2(VMA_DEBUG_MIN_BUFFER_IMAGE_GRANULARITY));
++    VMA_ASSERT(VmaIsPow2(m_PhysicalDeviceProperties.limits.bufferImageGranularity));
++    VMA_ASSERT(VmaIsPow2(m_PhysicalDeviceProperties.limits.nonCoherentAtomSize));
++
++    m_PreferredLargeHeapBlockSize = (pCreateInfo->preferredLargeHeapBlockSize != 0) ?
++        pCreateInfo->preferredLargeHeapBlockSize : static_cast<VkDeviceSize>(VMA_DEFAULT_LARGE_HEAP_BLOCK_SIZE);
++
++    m_GlobalMemoryTypeBits = CalculateGlobalMemoryTypeBits();
++
++#if VMA_EXTERNAL_MEMORY
++    if(pCreateInfo->pTypeExternalMemoryHandleTypes != VMA_NULL)
++    {
++        memcpy(m_TypeExternalMemoryHandleTypes, pCreateInfo->pTypeExternalMemoryHandleTypes,
++            sizeof(VkExternalMemoryHandleTypeFlagsKHR) * GetMemoryTypeCount());
++    }
++#endif // #if VMA_EXTERNAL_MEMORY
++
++    if(pCreateInfo->pHeapSizeLimit != VMA_NULL)
++    {
++        for(uint32_t heapIndex = 0; heapIndex < GetMemoryHeapCount(); ++heapIndex)
++        {
++            const VkDeviceSize limit = pCreateInfo->pHeapSizeLimit[heapIndex];
++            if(limit != VK_WHOLE_SIZE)
++            {
++                m_HeapSizeLimitMask |= 1u << heapIndex;
++                if(limit < m_MemProps.memoryHeaps[heapIndex].size)
++                {
++                    m_MemProps.memoryHeaps[heapIndex].size = limit;
++                }
++            }
++        }
++    }
++
++    for(uint32_t memTypeIndex = 0; memTypeIndex < GetMemoryTypeCount(); ++memTypeIndex)
++    {
++        // Create only supported types
++        if((m_GlobalMemoryTypeBits & (1u << memTypeIndex)) != 0)
++        {
++            const VkDeviceSize preferredBlockSize = CalcPreferredBlockSize(memTypeIndex);
++            m_pBlockVectors[memTypeIndex] = vma_new(this, VmaBlockVector)(
++                this,
++                VK_NULL_HANDLE, // hParentPool
++                memTypeIndex,
++                preferredBlockSize,
++                0,
++                SIZE_MAX,
++                GetBufferImageGranularity(),
++                false, // explicitBlockSize
++                0, // algorithm
++                0.5f, // priority (0.5 is the default per Vulkan spec)
++                GetMemoryTypeMinAlignment(memTypeIndex), // minAllocationAlignment
++                VMA_NULL); // // pMemoryAllocateNext
++            // No need to call m_pBlockVectors[memTypeIndex][blockVectorTypeIndex]->CreateMinBlocks here,
++            // becase minBlockCount is 0.
++        }
++    }
++}
++
++VkResult VmaAllocator_T::Init(const VmaAllocatorCreateInfo* pCreateInfo)
++{
++    VkResult res = VK_SUCCESS;
++
++#if VMA_MEMORY_BUDGET
++    if(m_UseExtMemoryBudget)
++    {
++        UpdateVulkanBudget();
++    }
++#endif // #if VMA_MEMORY_BUDGET
++
++    return res;
++}
++
++VmaAllocator_T::~VmaAllocator_T()
++{
++    VMA_ASSERT(m_Pools.IsEmpty());
++
++    for(size_t memTypeIndex = GetMemoryTypeCount(); memTypeIndex--; )
++    {
++        vma_delete(this, m_pBlockVectors[memTypeIndex]);
++    }
++}
++
++void VmaAllocator_T::ImportVulkanFunctions(const VmaVulkanFunctions* pVulkanFunctions)
++{
++#if VMA_STATIC_VULKAN_FUNCTIONS == 1
++    ImportVulkanFunctions_Static();
++#endif
++
++    if(pVulkanFunctions != VMA_NULL)
++    {
++        ImportVulkanFunctions_Custom(pVulkanFunctions);
++    }
++
++#if VMA_DYNAMIC_VULKAN_FUNCTIONS == 1
++    ImportVulkanFunctions_Dynamic();
++#endif
++
++    ValidateVulkanFunctions();
++}
++
++#if VMA_STATIC_VULKAN_FUNCTIONS == 1
++
++void VmaAllocator_T::ImportVulkanFunctions_Static()
++{
++    // Vulkan 1.0
++    m_VulkanFunctions.vkGetInstanceProcAddr = (PFN_vkGetInstanceProcAddr)vkGetInstanceProcAddr;
++    m_VulkanFunctions.vkGetDeviceProcAddr = (PFN_vkGetDeviceProcAddr)vkGetDeviceProcAddr;
++    m_VulkanFunctions.vkGetPhysicalDeviceProperties = (PFN_vkGetPhysicalDeviceProperties)vkGetPhysicalDeviceProperties;
++    m_VulkanFunctions.vkGetPhysicalDeviceMemoryProperties = (PFN_vkGetPhysicalDeviceMemoryProperties)vkGetPhysicalDeviceMemoryProperties;
++    m_VulkanFunctions.vkAllocateMemory = (PFN_vkAllocateMemory)vkAllocateMemory;
++    m_VulkanFunctions.vkFreeMemory = (PFN_vkFreeMemory)vkFreeMemory;
++    m_VulkanFunctions.vkMapMemory = (PFN_vkMapMemory)vkMapMemory;
++    m_VulkanFunctions.vkUnmapMemory = (PFN_vkUnmapMemory)vkUnmapMemory;
++    m_VulkanFunctions.vkFlushMappedMemoryRanges = (PFN_vkFlushMappedMemoryRanges)vkFlushMappedMemoryRanges;
++    m_VulkanFunctions.vkInvalidateMappedMemoryRanges = (PFN_vkInvalidateMappedMemoryRanges)vkInvalidateMappedMemoryRanges;
++    m_VulkanFunctions.vkBindBufferMemory = (PFN_vkBindBufferMemory)vkBindBufferMemory;
++    m_VulkanFunctions.vkBindImageMemory = (PFN_vkBindImageMemory)vkBindImageMemory;
++    m_VulkanFunctions.vkGetBufferMemoryRequirements = (PFN_vkGetBufferMemoryRequirements)vkGetBufferMemoryRequirements;
++    m_VulkanFunctions.vkGetImageMemoryRequirements = (PFN_vkGetImageMemoryRequirements)vkGetImageMemoryRequirements;
++    m_VulkanFunctions.vkCreateBuffer = (PFN_vkCreateBuffer)vkCreateBuffer;
++    m_VulkanFunctions.vkDestroyBuffer = (PFN_vkDestroyBuffer)vkDestroyBuffer;
++    m_VulkanFunctions.vkCreateImage = (PFN_vkCreateImage)vkCreateImage;
++    m_VulkanFunctions.vkDestroyImage = (PFN_vkDestroyImage)vkDestroyImage;
++    m_VulkanFunctions.vkCmdCopyBuffer = (PFN_vkCmdCopyBuffer)vkCmdCopyBuffer;
++
++    // Vulkan 1.1
++#if VMA_VULKAN_VERSION >= 1001000
++    if(m_VulkanApiVersion >= VK_MAKE_VERSION(1, 1, 0))
++    {
++        m_VulkanFunctions.vkGetBufferMemoryRequirements2KHR = (PFN_vkGetBufferMemoryRequirements2)vkGetBufferMemoryRequirements2;
++        m_VulkanFunctions.vkGetImageMemoryRequirements2KHR = (PFN_vkGetImageMemoryRequirements2)vkGetImageMemoryRequirements2;
++        m_VulkanFunctions.vkBindBufferMemory2KHR = (PFN_vkBindBufferMemory2)vkBindBufferMemory2;
++        m_VulkanFunctions.vkBindImageMemory2KHR = (PFN_vkBindImageMemory2)vkBindImageMemory2;
++        m_VulkanFunctions.vkGetPhysicalDeviceMemoryProperties2KHR = (PFN_vkGetPhysicalDeviceMemoryProperties2)vkGetPhysicalDeviceMemoryProperties2;
++    }
++#endif
++
++#if VMA_VULKAN_VERSION >= 1003000
++    if(m_VulkanApiVersion >= VK_MAKE_VERSION(1, 3, 0))
++    {
++        m_VulkanFunctions.vkGetDeviceBufferMemoryRequirements = (PFN_vkGetDeviceBufferMemoryRequirements)vkGetDeviceBufferMemoryRequirements;
++        m_VulkanFunctions.vkGetDeviceImageMemoryRequirements = (PFN_vkGetDeviceImageMemoryRequirements)vkGetDeviceImageMemoryRequirements;
++    }
++#endif
++}
++
++#endif // VMA_STATIC_VULKAN_FUNCTIONS == 1
++
++void VmaAllocator_T::ImportVulkanFunctions_Custom(const VmaVulkanFunctions* pVulkanFunctions)
++{
++    VMA_ASSERT(pVulkanFunctions != VMA_NULL);
++
++#define VMA_COPY_IF_NOT_NULL(funcName) \
++    if(pVulkanFunctions->funcName != VMA_NULL) m_VulkanFunctions.funcName = pVulkanFunctions->funcName;
++
++    VMA_COPY_IF_NOT_NULL(vkGetInstanceProcAddr);
++    VMA_COPY_IF_NOT_NULL(vkGetDeviceProcAddr);
++    VMA_COPY_IF_NOT_NULL(vkGetPhysicalDeviceProperties);
++    VMA_COPY_IF_NOT_NULL(vkGetPhysicalDeviceMemoryProperties);
++    VMA_COPY_IF_NOT_NULL(vkAllocateMemory);
++    VMA_COPY_IF_NOT_NULL(vkFreeMemory);
++    VMA_COPY_IF_NOT_NULL(vkMapMemory);
++    VMA_COPY_IF_NOT_NULL(vkUnmapMemory);
++    VMA_COPY_IF_NOT_NULL(vkFlushMappedMemoryRanges);
++    VMA_COPY_IF_NOT_NULL(vkInvalidateMappedMemoryRanges);
++    VMA_COPY_IF_NOT_NULL(vkBindBufferMemory);
++    VMA_COPY_IF_NOT_NULL(vkBindImageMemory);
++    VMA_COPY_IF_NOT_NULL(vkGetBufferMemoryRequirements);
++    VMA_COPY_IF_NOT_NULL(vkGetImageMemoryRequirements);
++    VMA_COPY_IF_NOT_NULL(vkCreateBuffer);
++    VMA_COPY_IF_NOT_NULL(vkDestroyBuffer);
++    VMA_COPY_IF_NOT_NULL(vkCreateImage);
++    VMA_COPY_IF_NOT_NULL(vkDestroyImage);
++    VMA_COPY_IF_NOT_NULL(vkCmdCopyBuffer);
++
++#if VMA_DEDICATED_ALLOCATION || VMA_VULKAN_VERSION >= 1001000
++    VMA_COPY_IF_NOT_NULL(vkGetBufferMemoryRequirements2KHR);
++    VMA_COPY_IF_NOT_NULL(vkGetImageMemoryRequirements2KHR);
++#endif
++
++#if VMA_BIND_MEMORY2 || VMA_VULKAN_VERSION >= 1001000
++    VMA_COPY_IF_NOT_NULL(vkBindBufferMemory2KHR);
++    VMA_COPY_IF_NOT_NULL(vkBindImageMemory2KHR);
++#endif
++
++#if VMA_MEMORY_BUDGET
++    VMA_COPY_IF_NOT_NULL(vkGetPhysicalDeviceMemoryProperties2KHR);
++#endif
++
++#if VMA_VULKAN_VERSION >= 1003000
++    VMA_COPY_IF_NOT_NULL(vkGetDeviceBufferMemoryRequirements);
++    VMA_COPY_IF_NOT_NULL(vkGetDeviceImageMemoryRequirements);
++#endif
++
++#undef VMA_COPY_IF_NOT_NULL
++}
++
++#if VMA_DYNAMIC_VULKAN_FUNCTIONS == 1
++
++void VmaAllocator_T::ImportVulkanFunctions_Dynamic()
++{
++    VMA_ASSERT(m_VulkanFunctions.vkGetInstanceProcAddr && m_VulkanFunctions.vkGetDeviceProcAddr &&
++        "To use VMA_DYNAMIC_VULKAN_FUNCTIONS in new versions of VMA you now have to pass "
++        "VmaVulkanFunctions::vkGetInstanceProcAddr and vkGetDeviceProcAddr as VmaAllocatorCreateInfo::pVulkanFunctions. "
++        "Other members can be null.");
++
++#define VMA_FETCH_INSTANCE_FUNC(memberName, functionPointerType, functionNameString) \
++    if(m_VulkanFunctions.memberName == VMA_NULL) \
++        m_VulkanFunctions.memberName = \
++            (functionPointerType)m_VulkanFunctions.vkGetInstanceProcAddr(m_hInstance, functionNameString);
++#define VMA_FETCH_DEVICE_FUNC(memberName, functionPointerType, functionNameString) \
++    if(m_VulkanFunctions.memberName == VMA_NULL) \
++        m_VulkanFunctions.memberName = \
++            (functionPointerType)m_VulkanFunctions.vkGetDeviceProcAddr(m_hDevice, functionNameString);
++
++    VMA_FETCH_INSTANCE_FUNC(vkGetPhysicalDeviceProperties, PFN_vkGetPhysicalDeviceProperties, "vkGetPhysicalDeviceProperties");
++    VMA_FETCH_INSTANCE_FUNC(vkGetPhysicalDeviceMemoryProperties, PFN_vkGetPhysicalDeviceMemoryProperties, "vkGetPhysicalDeviceMemoryProperties");
++    VMA_FETCH_DEVICE_FUNC(vkAllocateMemory, PFN_vkAllocateMemory, "vkAllocateMemory");
++    VMA_FETCH_DEVICE_FUNC(vkFreeMemory, PFN_vkFreeMemory, "vkFreeMemory");
++    VMA_FETCH_DEVICE_FUNC(vkMapMemory, PFN_vkMapMemory, "vkMapMemory");
++    VMA_FETCH_DEVICE_FUNC(vkUnmapMemory, PFN_vkUnmapMemory, "vkUnmapMemory");
++    VMA_FETCH_DEVICE_FUNC(vkFlushMappedMemoryRanges, PFN_vkFlushMappedMemoryRanges, "vkFlushMappedMemoryRanges");
++    VMA_FETCH_DEVICE_FUNC(vkInvalidateMappedMemoryRanges, PFN_vkInvalidateMappedMemoryRanges, "vkInvalidateMappedMemoryRanges");
++    VMA_FETCH_DEVICE_FUNC(vkBindBufferMemory, PFN_vkBindBufferMemory, "vkBindBufferMemory");
++    VMA_FETCH_DEVICE_FUNC(vkBindImageMemory, PFN_vkBindImageMemory, "vkBindImageMemory");
++    VMA_FETCH_DEVICE_FUNC(vkGetBufferMemoryRequirements, PFN_vkGetBufferMemoryRequirements, "vkGetBufferMemoryRequirements");
++    VMA_FETCH_DEVICE_FUNC(vkGetImageMemoryRequirements, PFN_vkGetImageMemoryRequirements, "vkGetImageMemoryRequirements");
++    VMA_FETCH_DEVICE_FUNC(vkCreateBuffer, PFN_vkCreateBuffer, "vkCreateBuffer");
++    VMA_FETCH_DEVICE_FUNC(vkDestroyBuffer, PFN_vkDestroyBuffer, "vkDestroyBuffer");
++    VMA_FETCH_DEVICE_FUNC(vkCreateImage, PFN_vkCreateImage, "vkCreateImage");
++    VMA_FETCH_DEVICE_FUNC(vkDestroyImage, PFN_vkDestroyImage, "vkDestroyImage");
++    VMA_FETCH_DEVICE_FUNC(vkCmdCopyBuffer, PFN_vkCmdCopyBuffer, "vkCmdCopyBuffer");
++
++#if VMA_VULKAN_VERSION >= 1001000
++    if(m_VulkanApiVersion >= VK_MAKE_VERSION(1, 1, 0))
++    {
++        VMA_FETCH_DEVICE_FUNC(vkGetBufferMemoryRequirements2KHR, PFN_vkGetBufferMemoryRequirements2, "vkGetBufferMemoryRequirements2");
++        VMA_FETCH_DEVICE_FUNC(vkGetImageMemoryRequirements2KHR, PFN_vkGetImageMemoryRequirements2, "vkGetImageMemoryRequirements2");
++        VMA_FETCH_DEVICE_FUNC(vkBindBufferMemory2KHR, PFN_vkBindBufferMemory2, "vkBindBufferMemory2");
++        VMA_FETCH_DEVICE_FUNC(vkBindImageMemory2KHR, PFN_vkBindImageMemory2, "vkBindImageMemory2");
++        VMA_FETCH_INSTANCE_FUNC(vkGetPhysicalDeviceMemoryProperties2KHR, PFN_vkGetPhysicalDeviceMemoryProperties2, "vkGetPhysicalDeviceMemoryProperties2");
++    }
++#endif
++
++#if VMA_DEDICATED_ALLOCATION
++    if(m_UseKhrDedicatedAllocation)
++    {
++        VMA_FETCH_DEVICE_FUNC(vkGetBufferMemoryRequirements2KHR, PFN_vkGetBufferMemoryRequirements2KHR, "vkGetBufferMemoryRequirements2KHR");
++        VMA_FETCH_DEVICE_FUNC(vkGetImageMemoryRequirements2KHR, PFN_vkGetImageMemoryRequirements2KHR, "vkGetImageMemoryRequirements2KHR");
++    }
++#endif
++
++#if VMA_BIND_MEMORY2
++    if(m_UseKhrBindMemory2)
++    {
++        VMA_FETCH_DEVICE_FUNC(vkBindBufferMemory2KHR, PFN_vkBindBufferMemory2KHR, "vkBindBufferMemory2KHR");
++        VMA_FETCH_DEVICE_FUNC(vkBindImageMemory2KHR, PFN_vkBindImageMemory2KHR, "vkBindImageMemory2KHR");
++    }
++#endif // #if VMA_BIND_MEMORY2
++
++#if VMA_MEMORY_BUDGET
++    if(m_UseExtMemoryBudget)
++    {
++        VMA_FETCH_INSTANCE_FUNC(vkGetPhysicalDeviceMemoryProperties2KHR, PFN_vkGetPhysicalDeviceMemoryProperties2KHR, "vkGetPhysicalDeviceMemoryProperties2KHR");
++    }
++#endif // #if VMA_MEMORY_BUDGET
++
++#if VMA_VULKAN_VERSION >= 1003000
++    if(m_VulkanApiVersion >= VK_MAKE_VERSION(1, 3, 0))
++    {
++        VMA_FETCH_DEVICE_FUNC(vkGetDeviceBufferMemoryRequirements, PFN_vkGetDeviceBufferMemoryRequirements, "vkGetDeviceBufferMemoryRequirements");
++        VMA_FETCH_DEVICE_FUNC(vkGetDeviceImageMemoryRequirements, PFN_vkGetDeviceImageMemoryRequirements, "vkGetDeviceImageMemoryRequirements");
++    }
++#endif
++
++#undef VMA_FETCH_DEVICE_FUNC
++#undef VMA_FETCH_INSTANCE_FUNC
++}
++
++#endif // VMA_DYNAMIC_VULKAN_FUNCTIONS == 1
++
++void VmaAllocator_T::ValidateVulkanFunctions()
++{
++    VMA_ASSERT(m_VulkanFunctions.vkGetPhysicalDeviceProperties != VMA_NULL);
++    VMA_ASSERT(m_VulkanFunctions.vkGetPhysicalDeviceMemoryProperties != VMA_NULL);
++    VMA_ASSERT(m_VulkanFunctions.vkAllocateMemory != VMA_NULL);
++    VMA_ASSERT(m_VulkanFunctions.vkFreeMemory != VMA_NULL);
++    VMA_ASSERT(m_VulkanFunctions.vkMapMemory != VMA_NULL);
++    VMA_ASSERT(m_VulkanFunctions.vkUnmapMemory != VMA_NULL);
++    VMA_ASSERT(m_VulkanFunctions.vkFlushMappedMemoryRanges != VMA_NULL);
++    VMA_ASSERT(m_VulkanFunctions.vkInvalidateMappedMemoryRanges != VMA_NULL);
++    VMA_ASSERT(m_VulkanFunctions.vkBindBufferMemory != VMA_NULL);
++    VMA_ASSERT(m_VulkanFunctions.vkBindImageMemory != VMA_NULL);
++    VMA_ASSERT(m_VulkanFunctions.vkGetBufferMemoryRequirements != VMA_NULL);
++    VMA_ASSERT(m_VulkanFunctions.vkGetImageMemoryRequirements != VMA_NULL);
++    VMA_ASSERT(m_VulkanFunctions.vkCreateBuffer != VMA_NULL);
++    VMA_ASSERT(m_VulkanFunctions.vkDestroyBuffer != VMA_NULL);
++    VMA_ASSERT(m_VulkanFunctions.vkCreateImage != VMA_NULL);
++    VMA_ASSERT(m_VulkanFunctions.vkDestroyImage != VMA_NULL);
++    VMA_ASSERT(m_VulkanFunctions.vkCmdCopyBuffer != VMA_NULL);
++
++#if VMA_DEDICATED_ALLOCATION || VMA_VULKAN_VERSION >= 1001000
++    if(m_VulkanApiVersion >= VK_MAKE_VERSION(1, 1, 0) || m_UseKhrDedicatedAllocation)
++    {
++        VMA_ASSERT(m_VulkanFunctions.vkGetBufferMemoryRequirements2KHR != VMA_NULL);
++        VMA_ASSERT(m_VulkanFunctions.vkGetImageMemoryRequirements2KHR != VMA_NULL);
++    }
++#endif
++
++#if VMA_BIND_MEMORY2 || VMA_VULKAN_VERSION >= 1001000
++    if(m_VulkanApiVersion >= VK_MAKE_VERSION(1, 1, 0) || m_UseKhrBindMemory2)
++    {
++        VMA_ASSERT(m_VulkanFunctions.vkBindBufferMemory2KHR != VMA_NULL);
++        VMA_ASSERT(m_VulkanFunctions.vkBindImageMemory2KHR != VMA_NULL);
++    }
++#endif
++
++#if VMA_MEMORY_BUDGET || VMA_VULKAN_VERSION >= 1001000
++    if(m_UseExtMemoryBudget || m_VulkanApiVersion >= VK_MAKE_VERSION(1, 1, 0))
++    {
++        VMA_ASSERT(m_VulkanFunctions.vkGetPhysicalDeviceMemoryProperties2KHR != VMA_NULL);
++    }
++#endif
++
++#if VMA_VULKAN_VERSION >= 1003000
++    if(m_VulkanApiVersion >= VK_MAKE_VERSION(1, 3, 0))
++    {
++        VMA_ASSERT(m_VulkanFunctions.vkGetDeviceBufferMemoryRequirements != VMA_NULL);
++        VMA_ASSERT(m_VulkanFunctions.vkGetDeviceImageMemoryRequirements != VMA_NULL);
++    }
++#endif
++}
++
++VkDeviceSize VmaAllocator_T::CalcPreferredBlockSize(uint32_t memTypeIndex)
++{
++    const uint32_t heapIndex = MemoryTypeIndexToHeapIndex(memTypeIndex);
++    const VkDeviceSize heapSize = m_MemProps.memoryHeaps[heapIndex].size;
++    const bool isSmallHeap = heapSize <= VMA_SMALL_HEAP_MAX_SIZE;
++    return VmaAlignUp(isSmallHeap ? (heapSize / 8) : m_PreferredLargeHeapBlockSize, (VkDeviceSize)32);
++}
++
++VkResult VmaAllocator_T::AllocateMemoryOfType(
++    VmaPool pool,
++    VkDeviceSize size,
++    VkDeviceSize alignment,
++    bool dedicatedPreferred,
++    VkBuffer dedicatedBuffer,
++    VkImage dedicatedImage,
++    VkFlags dedicatedBufferImageUsage,
++    const VmaAllocationCreateInfo& createInfo,
++    uint32_t memTypeIndex,
++    VmaSuballocationType suballocType,
++    VmaDedicatedAllocationList& dedicatedAllocations,
++    VmaBlockVector& blockVector,
++    size_t allocationCount,
++    VmaAllocation* pAllocations)
++{
++    VMA_ASSERT(pAllocations != VMA_NULL);
++    VMA_DEBUG_LOG("  AllocateMemory: MemoryTypeIndex=%u, AllocationCount=%zu, Size=%llu", memTypeIndex, allocationCount, size);
++
++    VmaAllocationCreateInfo finalCreateInfo = createInfo;
++    VkResult res = CalcMemTypeParams(
++        finalCreateInfo,
++        memTypeIndex,
++        size,
++        allocationCount);
++    if(res != VK_SUCCESS)
++        return res;
++
++    if((finalCreateInfo.flags & VMA_ALLOCATION_CREATE_DEDICATED_MEMORY_BIT) != 0)
++    {
++        return AllocateDedicatedMemory(
++            pool,
++            size,
++            suballocType,
++            dedicatedAllocations,
++            memTypeIndex,
++            (finalCreateInfo.flags & VMA_ALLOCATION_CREATE_MAPPED_BIT) != 0,
++            (finalCreateInfo.flags & VMA_ALLOCATION_CREATE_USER_DATA_COPY_STRING_BIT) != 0,
++            (finalCreateInfo.flags &
++                (VMA_ALLOCATION_CREATE_HOST_ACCESS_SEQUENTIAL_WRITE_BIT | VMA_ALLOCATION_CREATE_HOST_ACCESS_RANDOM_BIT)) != 0,
++            (finalCreateInfo.flags & VMA_ALLOCATION_CREATE_CAN_ALIAS_BIT) != 0,
++            finalCreateInfo.pUserData,
++            finalCreateInfo.priority,
++            dedicatedBuffer,
++            dedicatedImage,
++            dedicatedBufferImageUsage,
++            allocationCount,
++            pAllocations,
++            blockVector.GetAllocationNextPtr());
++    }
++    else
++    {
++        const bool canAllocateDedicated =
++            (finalCreateInfo.flags & VMA_ALLOCATION_CREATE_NEVER_ALLOCATE_BIT) == 0 &&
++            (pool == VK_NULL_HANDLE || !blockVector.HasExplicitBlockSize());
++
++        if(canAllocateDedicated)
++        {
++            // Heuristics: Allocate dedicated memory if requested size if greater than half of preferred block size.
++            if(size > blockVector.GetPreferredBlockSize() / 2)
++            {
++                dedicatedPreferred = true;
++            }
++            // Protection against creating each allocation as dedicated when we reach or exceed heap size/budget,
++            // which can quickly deplete maxMemoryAllocationCount: Don't prefer dedicated allocations when above
++            // 3/4 of the maximum allocation count.
++            if(m_DeviceMemoryCount.load() > m_PhysicalDeviceProperties.limits.maxMemoryAllocationCount * 3 / 4)
++            {
++                dedicatedPreferred = false;
++            }
++
++            if(dedicatedPreferred)
++            {
++                res = AllocateDedicatedMemory(
++                    pool,
++                    size,
++                    suballocType,
++                    dedicatedAllocations,
++                    memTypeIndex,
++                    (finalCreateInfo.flags & VMA_ALLOCATION_CREATE_MAPPED_BIT) != 0,
++                    (finalCreateInfo.flags & VMA_ALLOCATION_CREATE_USER_DATA_COPY_STRING_BIT) != 0,
++                    (finalCreateInfo.flags &
++                        (VMA_ALLOCATION_CREATE_HOST_ACCESS_SEQUENTIAL_WRITE_BIT | VMA_ALLOCATION_CREATE_HOST_ACCESS_RANDOM_BIT)) != 0,
++                    (finalCreateInfo.flags & VMA_ALLOCATION_CREATE_CAN_ALIAS_BIT) != 0,
++                    finalCreateInfo.pUserData,
++                    finalCreateInfo.priority,
++                    dedicatedBuffer,
++                    dedicatedImage,
++                    dedicatedBufferImageUsage,
++                    allocationCount,
++                    pAllocations,
++                    blockVector.GetAllocationNextPtr());
++                if(res == VK_SUCCESS)
++                {
++                    // Succeeded: AllocateDedicatedMemory function already filld pMemory, nothing more to do here.
++                    VMA_DEBUG_LOG("    Allocated as DedicatedMemory");
++                    return VK_SUCCESS;
++                }
++            }
++        }
++
++        res = blockVector.Allocate(
++            size,
++            alignment,
++            finalCreateInfo,
++            suballocType,
++            allocationCount,
++            pAllocations);
++        if(res == VK_SUCCESS)
++            return VK_SUCCESS;
++
++        // Try dedicated memory.
++        if(canAllocateDedicated && !dedicatedPreferred)
++        {
++            res = AllocateDedicatedMemory(
++                pool,
++                size,
++                suballocType,
++                dedicatedAllocations,
++                memTypeIndex,
++                (finalCreateInfo.flags & VMA_ALLOCATION_CREATE_MAPPED_BIT) != 0,
++                (finalCreateInfo.flags & VMA_ALLOCATION_CREATE_USER_DATA_COPY_STRING_BIT) != 0,
++                (finalCreateInfo.flags &
++                    (VMA_ALLOCATION_CREATE_HOST_ACCESS_SEQUENTIAL_WRITE_BIT | VMA_ALLOCATION_CREATE_HOST_ACCESS_RANDOM_BIT)) != 0,
++                (finalCreateInfo.flags & VMA_ALLOCATION_CREATE_CAN_ALIAS_BIT) != 0,
++                finalCreateInfo.pUserData,
++                finalCreateInfo.priority,
++                dedicatedBuffer,
++                dedicatedImage,
++                dedicatedBufferImageUsage,
++                allocationCount,
++                pAllocations,
++                blockVector.GetAllocationNextPtr());
++            if(res == VK_SUCCESS)
++            {
++                // Succeeded: AllocateDedicatedMemory function already filld pMemory, nothing more to do here.
++                VMA_DEBUG_LOG("    Allocated as DedicatedMemory");
++                return VK_SUCCESS;
++            }
++        }
++        // Everything failed: Return error code.
++        VMA_DEBUG_LOG("    vkAllocateMemory FAILED");
++        return res;
++    }
++}
++
++VkResult VmaAllocator_T::AllocateDedicatedMemory(
++    VmaPool pool,
++    VkDeviceSize size,
++    VmaSuballocationType suballocType,
++    VmaDedicatedAllocationList& dedicatedAllocations,
++    uint32_t memTypeIndex,
++    bool map,
++    bool isUserDataString,
++    bool isMappingAllowed,
++    bool canAliasMemory,
++    void* pUserData,
++    float priority,
++    VkBuffer dedicatedBuffer,
++    VkImage dedicatedImage,
++    VkFlags dedicatedBufferImageUsage,
++    size_t allocationCount,
++    VmaAllocation* pAllocations,
++    const void* pNextChain)
++{
++    VMA_ASSERT(allocationCount > 0 && pAllocations);
++
++    VkMemoryAllocateInfo allocInfo = { VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO };
++    allocInfo.memoryTypeIndex = memTypeIndex;
++    allocInfo.allocationSize = size;
++    allocInfo.pNext = pNextChain;
++
++#if VMA_DEDICATED_ALLOCATION || VMA_VULKAN_VERSION >= 1001000
++    VkMemoryDedicatedAllocateInfoKHR dedicatedAllocInfo = { VK_STRUCTURE_TYPE_MEMORY_DEDICATED_ALLOCATE_INFO_KHR };
++    if(!canAliasMemory)
++    {
++        if(m_UseKhrDedicatedAllocation || m_VulkanApiVersion >= VK_MAKE_VERSION(1, 1, 0))
++        {
++            if(dedicatedBuffer != VK_NULL_HANDLE)
++            {
++                VMA_ASSERT(dedicatedImage == VK_NULL_HANDLE);
++                dedicatedAllocInfo.buffer = dedicatedBuffer;
++                VmaPnextChainPushFront(&allocInfo, &dedicatedAllocInfo);
++            }
++            else if(dedicatedImage != VK_NULL_HANDLE)
++            {
++                dedicatedAllocInfo.image = dedicatedImage;
++                VmaPnextChainPushFront(&allocInfo, &dedicatedAllocInfo);
++            }
++        }
++    }
++#endif // #if VMA_DEDICATED_ALLOCATION || VMA_VULKAN_VERSION >= 1001000
++
++#if VMA_BUFFER_DEVICE_ADDRESS
++    VkMemoryAllocateFlagsInfoKHR allocFlagsInfo = { VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_FLAGS_INFO_KHR };
++    if(m_UseKhrBufferDeviceAddress)
++    {
++        bool canContainBufferWithDeviceAddress = true;
++        if(dedicatedBuffer != VK_NULL_HANDLE)
++        {
++            canContainBufferWithDeviceAddress = dedicatedBufferImageUsage == UINT32_MAX || // Usage flags unknown
++                (dedicatedBufferImageUsage & VK_BUFFER_USAGE_SHADER_DEVICE_ADDRESS_BIT_EXT) != 0;
++        }
++        else if(dedicatedImage != VK_NULL_HANDLE)
++        {
++            canContainBufferWithDeviceAddress = false;
++        }
++        if(canContainBufferWithDeviceAddress)
++        {
++            allocFlagsInfo.flags = VK_MEMORY_ALLOCATE_DEVICE_ADDRESS_BIT_KHR;
++            VmaPnextChainPushFront(&allocInfo, &allocFlagsInfo);
++        }
++    }
++#endif // #if VMA_BUFFER_DEVICE_ADDRESS
++
++#if VMA_MEMORY_PRIORITY
++    VkMemoryPriorityAllocateInfoEXT priorityInfo = { VK_STRUCTURE_TYPE_MEMORY_PRIORITY_ALLOCATE_INFO_EXT };
++    if(m_UseExtMemoryPriority)
++    {
++        VMA_ASSERT(priority >= 0.f && priority <= 1.f);
++        priorityInfo.priority = priority;
++        VmaPnextChainPushFront(&allocInfo, &priorityInfo);
++    }
++#endif // #if VMA_MEMORY_PRIORITY
++
++#if VMA_EXTERNAL_MEMORY
++    // Attach VkExportMemoryAllocateInfoKHR if necessary.
++    VkExportMemoryAllocateInfoKHR exportMemoryAllocInfo = { VK_STRUCTURE_TYPE_EXPORT_MEMORY_ALLOCATE_INFO_KHR };
++    exportMemoryAllocInfo.handleTypes = GetExternalMemoryHandleTypeFlags(memTypeIndex);
++    if(exportMemoryAllocInfo.handleTypes != 0)
++    {
++        VmaPnextChainPushFront(&allocInfo, &exportMemoryAllocInfo);
++    }
++#endif // #if VMA_EXTERNAL_MEMORY
++
++    size_t allocIndex;
++    VkResult res = VK_SUCCESS;
++    for(allocIndex = 0; allocIndex < allocationCount; ++allocIndex)
++    {
++        res = AllocateDedicatedMemoryPage(
++            pool,
++            size,
++            suballocType,
++            memTypeIndex,
++            allocInfo,
++            map,
++            isUserDataString,
++            isMappingAllowed,
++            pUserData,
++            pAllocations + allocIndex);
++        if(res != VK_SUCCESS)
++        {
++            break;
++        }
++    }
++
++    if(res == VK_SUCCESS)
++    {
++        for (allocIndex = 0; allocIndex < allocationCount; ++allocIndex)
++        {
++            dedicatedAllocations.Register(pAllocations[allocIndex]);
++        }
++        VMA_DEBUG_LOG("    Allocated DedicatedMemory Count=%zu, MemoryTypeIndex=#%u", allocationCount, memTypeIndex);
++    }
++    else
++    {
++        // Free all already created allocations.
++        while(allocIndex--)
++        {
++            VmaAllocation currAlloc = pAllocations[allocIndex];
++            VkDeviceMemory hMemory = currAlloc->GetMemory();
++
++            /*
++            There is no need to call this, because Vulkan spec allows to skip vkUnmapMemory
++            before vkFreeMemory.
++
++            if(currAlloc->GetMappedData() != VMA_NULL)
++            {
++                (*m_VulkanFunctions.vkUnmapMemory)(m_hDevice, hMemory);
++            }
++            */
++
++            FreeVulkanMemory(memTypeIndex, currAlloc->GetSize(), hMemory);
++            m_Budget.RemoveAllocation(MemoryTypeIndexToHeapIndex(memTypeIndex), currAlloc->GetSize());
++            m_AllocationObjectAllocator.Free(currAlloc);
++        }
++
++        memset(pAllocations, 0, sizeof(VmaAllocation) * allocationCount);
++    }
++
++    return res;
++}
++
++VkResult VmaAllocator_T::AllocateDedicatedMemoryPage(
++    VmaPool pool,
++    VkDeviceSize size,
++    VmaSuballocationType suballocType,
++    uint32_t memTypeIndex,
++    const VkMemoryAllocateInfo& allocInfo,
++    bool map,
++    bool isUserDataString,
++    bool isMappingAllowed,
++    void* pUserData,
++    VmaAllocation* pAllocation)
++{
++    VkDeviceMemory hMemory = VK_NULL_HANDLE;
++    VkResult res = AllocateVulkanMemory(&allocInfo, &hMemory);
++    if(res < 0)
++    {
++        VMA_DEBUG_LOG("    vkAllocateMemory FAILED");
++        return res;
++    }
++
++    void* pMappedData = VMA_NULL;
++    if(map)
++    {
++        res = (*m_VulkanFunctions.vkMapMemory)(
++            m_hDevice,
++            hMemory,
++            0,
++            VK_WHOLE_SIZE,
++            0,
++            &pMappedData);
++        if(res < 0)
++        {
++            VMA_DEBUG_LOG("    vkMapMemory FAILED");
++            FreeVulkanMemory(memTypeIndex, size, hMemory);
++            return res;
++        }
++    }
++
++    *pAllocation = m_AllocationObjectAllocator.Allocate(isMappingAllowed);
++    (*pAllocation)->InitDedicatedAllocation(pool, memTypeIndex, hMemory, suballocType, pMappedData, size);
++    if (isUserDataString)
++        (*pAllocation)->SetName(this, (const char*)pUserData);
++    else
++        (*pAllocation)->SetUserData(this, pUserData);
++    m_Budget.AddAllocation(MemoryTypeIndexToHeapIndex(memTypeIndex), size);
++    if(VMA_DEBUG_INITIALIZE_ALLOCATIONS)
++    {
++        FillAllocation(*pAllocation, VMA_ALLOCATION_FILL_PATTERN_CREATED);
++    }
++
++    return VK_SUCCESS;
++}
++
++void VmaAllocator_T::GetBufferMemoryRequirements(
++    VkBuffer hBuffer,
++    VkMemoryRequirements& memReq,
++    bool& requiresDedicatedAllocation,
++    bool& prefersDedicatedAllocation) const
++{
++#if VMA_DEDICATED_ALLOCATION || VMA_VULKAN_VERSION >= 1001000
++    if(m_UseKhrDedicatedAllocation || m_VulkanApiVersion >= VK_MAKE_VERSION(1, 1, 0))
++    {
++        VkBufferMemoryRequirementsInfo2KHR memReqInfo = { VK_STRUCTURE_TYPE_BUFFER_MEMORY_REQUIREMENTS_INFO_2_KHR };
++        memReqInfo.buffer = hBuffer;
++
++        VkMemoryDedicatedRequirementsKHR memDedicatedReq = { VK_STRUCTURE_TYPE_MEMORY_DEDICATED_REQUIREMENTS_KHR };
++
++        VkMemoryRequirements2KHR memReq2 = { VK_STRUCTURE_TYPE_MEMORY_REQUIREMENTS_2_KHR };
++        VmaPnextChainPushFront(&memReq2, &memDedicatedReq);
++
++        (*m_VulkanFunctions.vkGetBufferMemoryRequirements2KHR)(m_hDevice, &memReqInfo, &memReq2);
++
++        memReq = memReq2.memoryRequirements;
++        requiresDedicatedAllocation = (memDedicatedReq.requiresDedicatedAllocation != VK_FALSE);
++        prefersDedicatedAllocation  = (memDedicatedReq.prefersDedicatedAllocation  != VK_FALSE);
++    }
++    else
++#endif // #if VMA_DEDICATED_ALLOCATION || VMA_VULKAN_VERSION >= 1001000
++    {
++        (*m_VulkanFunctions.vkGetBufferMemoryRequirements)(m_hDevice, hBuffer, &memReq);
++        requiresDedicatedAllocation = false;
++        prefersDedicatedAllocation  = false;
++    }
++}
++
++void VmaAllocator_T::GetImageMemoryRequirements(
++    VkImage hImage,
++    VkMemoryRequirements& memReq,
++    bool& requiresDedicatedAllocation,
++    bool& prefersDedicatedAllocation) const
++{
++#if VMA_DEDICATED_ALLOCATION || VMA_VULKAN_VERSION >= 1001000
++    if(m_UseKhrDedicatedAllocation || m_VulkanApiVersion >= VK_MAKE_VERSION(1, 1, 0))
++    {
++        VkImageMemoryRequirementsInfo2KHR memReqInfo = { VK_STRUCTURE_TYPE_IMAGE_MEMORY_REQUIREMENTS_INFO_2_KHR };
++        memReqInfo.image = hImage;
++
++        VkMemoryDedicatedRequirementsKHR memDedicatedReq = { VK_STRUCTURE_TYPE_MEMORY_DEDICATED_REQUIREMENTS_KHR };
++
++        VkMemoryRequirements2KHR memReq2 = { VK_STRUCTURE_TYPE_MEMORY_REQUIREMENTS_2_KHR };
++        VmaPnextChainPushFront(&memReq2, &memDedicatedReq);
++
++        (*m_VulkanFunctions.vkGetImageMemoryRequirements2KHR)(m_hDevice, &memReqInfo, &memReq2);
++
++        memReq = memReq2.memoryRequirements;
++        requiresDedicatedAllocation = (memDedicatedReq.requiresDedicatedAllocation != VK_FALSE);
++        prefersDedicatedAllocation  = (memDedicatedReq.prefersDedicatedAllocation  != VK_FALSE);
++    }
++    else
++#endif // #if VMA_DEDICATED_ALLOCATION || VMA_VULKAN_VERSION >= 1001000
++    {
++        (*m_VulkanFunctions.vkGetImageMemoryRequirements)(m_hDevice, hImage, &memReq);
++        requiresDedicatedAllocation = false;
++        prefersDedicatedAllocation  = false;
++    }
++}
++
++VkResult VmaAllocator_T::FindMemoryTypeIndex(
++    uint32_t memoryTypeBits,
++    const VmaAllocationCreateInfo* pAllocationCreateInfo,
++    VkFlags bufImgUsage,
++    uint32_t* pMemoryTypeIndex) const
++{
++    memoryTypeBits &= GetGlobalMemoryTypeBits();
++
++    if(pAllocationCreateInfo->memoryTypeBits != 0)
++    {
++        memoryTypeBits &= pAllocationCreateInfo->memoryTypeBits;
++    }
++
++    VkMemoryPropertyFlags requiredFlags = 0, preferredFlags = 0, notPreferredFlags = 0;
++    if(!FindMemoryPreferences(
++        IsIntegratedGpu(),
++        *pAllocationCreateInfo,
++        bufImgUsage,
++        requiredFlags, preferredFlags, notPreferredFlags))
++    {
++        return VK_ERROR_FEATURE_NOT_PRESENT;
++    }
++
++    *pMemoryTypeIndex = UINT32_MAX;
++    uint32_t minCost = UINT32_MAX;
++    for(uint32_t memTypeIndex = 0, memTypeBit = 1;
++        memTypeIndex < GetMemoryTypeCount();
++        ++memTypeIndex, memTypeBit <<= 1)
++    {
++        // This memory type is acceptable according to memoryTypeBits bitmask.
++        if((memTypeBit & memoryTypeBits) != 0)
++        {
++            const VkMemoryPropertyFlags currFlags =
++                m_MemProps.memoryTypes[memTypeIndex].propertyFlags;
++            // This memory type contains requiredFlags.
++            if((requiredFlags & ~currFlags) == 0)
++            {
++                // Calculate cost as number of bits from preferredFlags not present in this memory type.
++                uint32_t currCost = VMA_COUNT_BITS_SET(preferredFlags & ~currFlags) +
++                    VMA_COUNT_BITS_SET(currFlags & notPreferredFlags);
++                // Remember memory type with lowest cost.
++                if(currCost < minCost)
++                {
++                    *pMemoryTypeIndex = memTypeIndex;
++                    if(currCost == 0)
++                    {
++                        return VK_SUCCESS;
++                    }
++                    minCost = currCost;
++                }
++            }
++        }
++    }
++    return (*pMemoryTypeIndex != UINT32_MAX) ? VK_SUCCESS : VK_ERROR_FEATURE_NOT_PRESENT;
++}
++
++VkResult VmaAllocator_T::CalcMemTypeParams(
++    VmaAllocationCreateInfo& inoutCreateInfo,
++    uint32_t memTypeIndex,
++    VkDeviceSize size,
++    size_t allocationCount)
++{
++    // If memory type is not HOST_VISIBLE, disable MAPPED.
++    if((inoutCreateInfo.flags & VMA_ALLOCATION_CREATE_MAPPED_BIT) != 0 &&
++        (m_MemProps.memoryTypes[memTypeIndex].propertyFlags & VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT) == 0)
++    {
++        inoutCreateInfo.flags &= ~VMA_ALLOCATION_CREATE_MAPPED_BIT;
++    }
++
++    if((inoutCreateInfo.flags & VMA_ALLOCATION_CREATE_DEDICATED_MEMORY_BIT) != 0 &&
++        (inoutCreateInfo.flags & VMA_ALLOCATION_CREATE_WITHIN_BUDGET_BIT) != 0)
++    {
++        const uint32_t heapIndex = MemoryTypeIndexToHeapIndex(memTypeIndex);
++        VmaBudget heapBudget = {};
++        GetHeapBudgets(&heapBudget, heapIndex, 1);
++        if(heapBudget.usage + size * allocationCount > heapBudget.budget)
++        {
++            return VK_ERROR_OUT_OF_DEVICE_MEMORY;
++        }
++    }
++    return VK_SUCCESS;
++}
++
++VkResult VmaAllocator_T::CalcAllocationParams(
++    VmaAllocationCreateInfo& inoutCreateInfo,
++    bool dedicatedRequired,
++    bool dedicatedPreferred)
++{
++    VMA_ASSERT((inoutCreateInfo.flags &
++        (VMA_ALLOCATION_CREATE_HOST_ACCESS_SEQUENTIAL_WRITE_BIT | VMA_ALLOCATION_CREATE_HOST_ACCESS_RANDOM_BIT)) !=
++        (VMA_ALLOCATION_CREATE_HOST_ACCESS_SEQUENTIAL_WRITE_BIT | VMA_ALLOCATION_CREATE_HOST_ACCESS_RANDOM_BIT) &&
++        "Specifying both flags VMA_ALLOCATION_CREATE_HOST_ACCESS_SEQUENTIAL_WRITE_BIT and VMA_ALLOCATION_CREATE_HOST_ACCESS_RANDOM_BIT is incorrect.");
++    VMA_ASSERT((((inoutCreateInfo.flags & VMA_ALLOCATION_CREATE_HOST_ACCESS_ALLOW_TRANSFER_INSTEAD_BIT) == 0 ||
++        (inoutCreateInfo.flags & (VMA_ALLOCATION_CREATE_HOST_ACCESS_SEQUENTIAL_WRITE_BIT | VMA_ALLOCATION_CREATE_HOST_ACCESS_RANDOM_BIT)) != 0)) &&
++        "Specifying VMA_ALLOCATION_CREATE_HOST_ACCESS_ALLOW_TRANSFER_INSTEAD_BIT requires also VMA_ALLOCATION_CREATE_HOST_ACCESS_SEQUENTIAL_WRITE_BIT or VMA_ALLOCATION_CREATE_HOST_ACCESS_RANDOM_BIT.");
++    if(inoutCreateInfo.usage == VMA_MEMORY_USAGE_AUTO || inoutCreateInfo.usage == VMA_MEMORY_USAGE_AUTO_PREFER_DEVICE || inoutCreateInfo.usage == VMA_MEMORY_USAGE_AUTO_PREFER_HOST)
++    {
++        if((inoutCreateInfo.flags & VMA_ALLOCATION_CREATE_MAPPED_BIT) != 0)
++        {
++            VMA_ASSERT((inoutCreateInfo.flags & (VMA_ALLOCATION_CREATE_HOST_ACCESS_SEQUENTIAL_WRITE_BIT | VMA_ALLOCATION_CREATE_HOST_ACCESS_RANDOM_BIT)) != 0 &&
++                "When using VMA_ALLOCATION_CREATE_MAPPED_BIT and usage = VMA_MEMORY_USAGE_AUTO*, you must also specify VMA_ALLOCATION_CREATE_HOST_ACCESS_SEQUENTIAL_WRITE_BIT or VMA_ALLOCATION_CREATE_HOST_ACCESS_RANDOM_BIT.");
++        }
++    }
++
++    // If memory is lazily allocated, it should be always dedicated.
++    if(dedicatedRequired ||
++        inoutCreateInfo.usage == VMA_MEMORY_USAGE_GPU_LAZILY_ALLOCATED)
++    {
++        inoutCreateInfo.flags |= VMA_ALLOCATION_CREATE_DEDICATED_MEMORY_BIT;
++    }
++
++    if(inoutCreateInfo.pool != VK_NULL_HANDLE)
++    {
++        if(inoutCreateInfo.pool->m_BlockVector.HasExplicitBlockSize() &&
++            (inoutCreateInfo.flags & VMA_ALLOCATION_CREATE_DEDICATED_MEMORY_BIT) != 0)
++        {
++            VMA_ASSERT(0 && "Specifying VMA_ALLOCATION_CREATE_DEDICATED_MEMORY_BIT while current custom pool doesn't support dedicated allocations.");
++            return VK_ERROR_FEATURE_NOT_PRESENT;
++        }
++        inoutCreateInfo.priority = inoutCreateInfo.pool->m_BlockVector.GetPriority();
++    }
++
++    if((inoutCreateInfo.flags & VMA_ALLOCATION_CREATE_DEDICATED_MEMORY_BIT) != 0 &&
++        (inoutCreateInfo.flags & VMA_ALLOCATION_CREATE_NEVER_ALLOCATE_BIT) != 0)
++    {
++        VMA_ASSERT(0 && "Specifying VMA_ALLOCATION_CREATE_DEDICATED_MEMORY_BIT together with VMA_ALLOCATION_CREATE_NEVER_ALLOCATE_BIT makes no sense.");
++        return VK_ERROR_FEATURE_NOT_PRESENT;
++    }
++
++    if(VMA_DEBUG_ALWAYS_DEDICATED_MEMORY &&
++        (inoutCreateInfo.flags & VMA_ALLOCATION_CREATE_NEVER_ALLOCATE_BIT) != 0)
++    {
++        inoutCreateInfo.flags |= VMA_ALLOCATION_CREATE_DEDICATED_MEMORY_BIT;
++    }
++
++    // Non-auto USAGE values imply HOST_ACCESS flags.
++    // And so does VMA_MEMORY_USAGE_UNKNOWN because it is used with custom pools.
++    // Which specific flag is used doesn't matter. They change things only when used with VMA_MEMORY_USAGE_AUTO*.
++    // Otherwise they just protect from assert on mapping.
++    if(inoutCreateInfo.usage != VMA_MEMORY_USAGE_AUTO &&
++        inoutCreateInfo.usage != VMA_MEMORY_USAGE_AUTO_PREFER_DEVICE &&
++        inoutCreateInfo.usage != VMA_MEMORY_USAGE_AUTO_PREFER_HOST)
++    {
++        if((inoutCreateInfo.flags & (VMA_ALLOCATION_CREATE_HOST_ACCESS_SEQUENTIAL_WRITE_BIT | VMA_ALLOCATION_CREATE_HOST_ACCESS_RANDOM_BIT)) == 0)
++        {
++            inoutCreateInfo.flags |= VMA_ALLOCATION_CREATE_HOST_ACCESS_RANDOM_BIT;
++        }
++    }
++
++    return VK_SUCCESS;
++}
++
++VkResult VmaAllocator_T::AllocateMemory(
++    const VkMemoryRequirements& vkMemReq,
++    bool requiresDedicatedAllocation,
++    bool prefersDedicatedAllocation,
++    VkBuffer dedicatedBuffer,
++    VkImage dedicatedImage,
++    VkFlags dedicatedBufferImageUsage,
++    const VmaAllocationCreateInfo& createInfo,
++    VmaSuballocationType suballocType,
++    size_t allocationCount,
++    VmaAllocation* pAllocations)
++{
++    memset(pAllocations, 0, sizeof(VmaAllocation) * allocationCount);
++
++    VMA_ASSERT(VmaIsPow2(vkMemReq.alignment));
++
++    if(vkMemReq.size == 0)
++    {
++        return VK_ERROR_INITIALIZATION_FAILED;
++    }
++
++    VmaAllocationCreateInfo createInfoFinal = createInfo;
++    VkResult res = CalcAllocationParams(createInfoFinal, requiresDedicatedAllocation, prefersDedicatedAllocation);
++    if(res != VK_SUCCESS)
++        return res;
++
++    if(createInfoFinal.pool != VK_NULL_HANDLE)
++    {
++        VmaBlockVector& blockVector = createInfoFinal.pool->m_BlockVector;
++        return AllocateMemoryOfType(
++            createInfoFinal.pool,
++            vkMemReq.size,
++            vkMemReq.alignment,
++            prefersDedicatedAllocation,
++            dedicatedBuffer,
++            dedicatedImage,
++            dedicatedBufferImageUsage,
++            createInfoFinal,
++            blockVector.GetMemoryTypeIndex(),
++            suballocType,
++            createInfoFinal.pool->m_DedicatedAllocations,
++            blockVector,
++            allocationCount,
++            pAllocations);
++    }
++    else
++    {
++        // Bit mask of memory Vulkan types acceptable for this allocation.
++        uint32_t memoryTypeBits = vkMemReq.memoryTypeBits;
++        uint32_t memTypeIndex = UINT32_MAX;
++        res = FindMemoryTypeIndex(memoryTypeBits, &createInfoFinal, dedicatedBufferImageUsage, &memTypeIndex);
++        // Can't find any single memory type matching requirements. res is VK_ERROR_FEATURE_NOT_PRESENT.
++        if(res != VK_SUCCESS)
++            return res;
++        do
++        {
++            VmaBlockVector* blockVector = m_pBlockVectors[memTypeIndex];
++            VMA_ASSERT(blockVector && "Trying to use unsupported memory type!");
++            res = AllocateMemoryOfType(
++                VK_NULL_HANDLE,
++                vkMemReq.size,
++                vkMemReq.alignment,
++                requiresDedicatedAllocation || prefersDedicatedAllocation,
++                dedicatedBuffer,
++                dedicatedImage,
++                dedicatedBufferImageUsage,
++                createInfoFinal,
++                memTypeIndex,
++                suballocType,
++                m_DedicatedAllocations[memTypeIndex],
++                *blockVector,
++                allocationCount,
++                pAllocations);
++            // Allocation succeeded
++            if(res == VK_SUCCESS)
++                return VK_SUCCESS;
++
++            // Remove old memTypeIndex from list of possibilities.
++            memoryTypeBits &= ~(1u << memTypeIndex);
++            // Find alternative memTypeIndex.
++            res = FindMemoryTypeIndex(memoryTypeBits, &createInfoFinal, dedicatedBufferImageUsage, &memTypeIndex);
++        } while(res == VK_SUCCESS);
++
++        // No other matching memory type index could be found.
++        // Not returning res, which is VK_ERROR_FEATURE_NOT_PRESENT, because we already failed to allocate once.
++        return VK_ERROR_OUT_OF_DEVICE_MEMORY;
++    }
++}
++
++void VmaAllocator_T::FreeMemory(
++    size_t allocationCount,
++    const VmaAllocation* pAllocations)
++{
++    VMA_ASSERT(pAllocations);
++
++    for(size_t allocIndex = allocationCount; allocIndex--; )
++    {
++        VmaAllocation allocation = pAllocations[allocIndex];
++
++        if(allocation != VK_NULL_HANDLE)
++        {
++            if(VMA_DEBUG_INITIALIZE_ALLOCATIONS)
++            {
++                FillAllocation(allocation, VMA_ALLOCATION_FILL_PATTERN_DESTROYED);
++            }
++
++            allocation->FreeName(this);
++
++            switch(allocation->GetType())
++            {
++            case VmaAllocation_T::ALLOCATION_TYPE_BLOCK:
++                {
++                    VmaBlockVector* pBlockVector = VMA_NULL;
++                    VmaPool hPool = allocation->GetParentPool();
++                    if(hPool != VK_NULL_HANDLE)
++                    {
++                        pBlockVector = &hPool->m_BlockVector;
++                    }
++                    else
++                    {
++                        const uint32_t memTypeIndex = allocation->GetMemoryTypeIndex();
++                        pBlockVector = m_pBlockVectors[memTypeIndex];
++                        VMA_ASSERT(pBlockVector && "Trying to free memory of unsupported type!");
++                    }
++                    pBlockVector->Free(allocation);
++                }
++                break;
++            case VmaAllocation_T::ALLOCATION_TYPE_DEDICATED:
++                FreeDedicatedMemory(allocation);
++                break;
++            default:
++                VMA_ASSERT(0);
++            }
++        }
++    }
++}
++
++void VmaAllocator_T::CalculateStatistics(VmaTotalStatistics* pStats)
++{
++    // Initialize.
++    VmaClearDetailedStatistics(pStats->total);
++    for(uint32_t i = 0; i < VK_MAX_MEMORY_TYPES; ++i)
++        VmaClearDetailedStatistics(pStats->memoryType[i]);
++    for(uint32_t i = 0; i < VK_MAX_MEMORY_HEAPS; ++i)
++        VmaClearDetailedStatistics(pStats->memoryHeap[i]);
++
++    // Process default pools.
++    for(uint32_t memTypeIndex = 0; memTypeIndex < GetMemoryTypeCount(); ++memTypeIndex)
++    {
++        VmaBlockVector* const pBlockVector = m_pBlockVectors[memTypeIndex];
++        if (pBlockVector != VMA_NULL)
++            pBlockVector->AddDetailedStatistics(pStats->memoryType[memTypeIndex]);
++    }
++
++    // Process custom pools.
++    {
++        VmaMutexLockRead lock(m_PoolsMutex, m_UseMutex);
++        for(VmaPool pool = m_Pools.Front(); pool != VMA_NULL; pool = m_Pools.GetNext(pool))
++        {
++            VmaBlockVector& blockVector = pool->m_BlockVector;
++            const uint32_t memTypeIndex = blockVector.GetMemoryTypeIndex();
++            blockVector.AddDetailedStatistics(pStats->memoryType[memTypeIndex]);
++            pool->m_DedicatedAllocations.AddDetailedStatistics(pStats->memoryType[memTypeIndex]);
++        }
++    }
++
++    // Process dedicated allocations.
++    for(uint32_t memTypeIndex = 0; memTypeIndex < GetMemoryTypeCount(); ++memTypeIndex)
++    {
++        m_DedicatedAllocations[memTypeIndex].AddDetailedStatistics(pStats->memoryType[memTypeIndex]);
++    }
++
++    // Sum from memory types to memory heaps.
++    for(uint32_t memTypeIndex = 0; memTypeIndex < GetMemoryTypeCount(); ++memTypeIndex)
++    {
++        const uint32_t memHeapIndex = m_MemProps.memoryTypes[memTypeIndex].heapIndex;
++        VmaAddDetailedStatistics(pStats->memoryHeap[memHeapIndex], pStats->memoryType[memTypeIndex]);
++    }
++
++    // Sum from memory heaps to total.
++    for(uint32_t memHeapIndex = 0; memHeapIndex < GetMemoryHeapCount(); ++memHeapIndex)
++        VmaAddDetailedStatistics(pStats->total, pStats->memoryHeap[memHeapIndex]);
++
++    VMA_ASSERT(pStats->total.statistics.allocationCount == 0 ||
++        pStats->total.allocationSizeMax >= pStats->total.allocationSizeMin);
++    VMA_ASSERT(pStats->total.unusedRangeCount == 0 ||
++        pStats->total.unusedRangeSizeMax >= pStats->total.unusedRangeSizeMin);
++}
++
++void VmaAllocator_T::GetHeapBudgets(VmaBudget* outBudgets, uint32_t firstHeap, uint32_t heapCount)
++{
++#if VMA_MEMORY_BUDGET
++    if(m_UseExtMemoryBudget)
++    {
++        if(m_Budget.m_OperationsSinceBudgetFetch < 30)
++        {
++            VmaMutexLockRead lockRead(m_Budget.m_BudgetMutex, m_UseMutex);
++            for(uint32_t i = 0; i < heapCount; ++i, ++outBudgets)
++            {
++                const uint32_t heapIndex = firstHeap + i;
++
++                outBudgets->statistics.blockCount = m_Budget.m_BlockCount[heapIndex];
++                outBudgets->statistics.allocationCount = m_Budget.m_AllocationCount[heapIndex];
++                outBudgets->statistics.blockBytes = m_Budget.m_BlockBytes[heapIndex];
++                outBudgets->statistics.allocationBytes = m_Budget.m_AllocationBytes[heapIndex];
++
++                if(m_Budget.m_VulkanUsage[heapIndex] + outBudgets->statistics.blockBytes > m_Budget.m_BlockBytesAtBudgetFetch[heapIndex])
++                {
++                    outBudgets->usage = m_Budget.m_VulkanUsage[heapIndex] +
++                        outBudgets->statistics.blockBytes - m_Budget.m_BlockBytesAtBudgetFetch[heapIndex];
++                }
++                else
++                {
++                    outBudgets->usage = 0;
++                }
++
++                // Have to take MIN with heap size because explicit HeapSizeLimit is included in it.
++                outBudgets->budget = VMA_MIN(
++                    m_Budget.m_VulkanBudget[heapIndex], m_MemProps.memoryHeaps[heapIndex].size);
++            }
++        }
++        else
++        {
++            UpdateVulkanBudget(); // Outside of mutex lock
++            GetHeapBudgets(outBudgets, firstHeap, heapCount); // Recursion
++        }
++    }
++    else
++#endif
++    {
++        for(uint32_t i = 0; i < heapCount; ++i, ++outBudgets)
++        {
++            const uint32_t heapIndex = firstHeap + i;
++
++            outBudgets->statistics.blockCount = m_Budget.m_BlockCount[heapIndex];
++            outBudgets->statistics.allocationCount = m_Budget.m_AllocationCount[heapIndex];
++            outBudgets->statistics.blockBytes = m_Budget.m_BlockBytes[heapIndex];
++            outBudgets->statistics.allocationBytes = m_Budget.m_AllocationBytes[heapIndex];
++
++            outBudgets->usage = outBudgets->statistics.blockBytes;
++            outBudgets->budget = m_MemProps.memoryHeaps[heapIndex].size * 8 / 10; // 80% heuristics.
++        }
++    }
++}
++
++void VmaAllocator_T::GetAllocationInfo(VmaAllocation hAllocation, VmaAllocationInfo* pAllocationInfo)
++{
++    pAllocationInfo->memoryType = hAllocation->GetMemoryTypeIndex();
++    pAllocationInfo->deviceMemory = hAllocation->GetMemory();
++    pAllocationInfo->offset = hAllocation->GetOffset();
++    pAllocationInfo->size = hAllocation->GetSize();
++    pAllocationInfo->pMappedData = hAllocation->GetMappedData();
++    pAllocationInfo->pUserData = hAllocation->GetUserData();
++    pAllocationInfo->pName = hAllocation->GetName();
++}
++
++VkResult VmaAllocator_T::CreatePool(const VmaPoolCreateInfo* pCreateInfo, VmaPool* pPool)
++{
++    VMA_DEBUG_LOG("  CreatePool: MemoryTypeIndex=%u, flags=%u", pCreateInfo->memoryTypeIndex, pCreateInfo->flags);
++
++    VmaPoolCreateInfo newCreateInfo = *pCreateInfo;
++
++    // Protection against uninitialized new structure member. If garbage data are left there, this pointer dereference would crash.
++    if(pCreateInfo->pMemoryAllocateNext)
++    {
++        VMA_ASSERT(((const VkBaseInStructure*)pCreateInfo->pMemoryAllocateNext)->sType != 0);
++    }
++
++    if(newCreateInfo.maxBlockCount == 0)
++    {
++        newCreateInfo.maxBlockCount = SIZE_MAX;
++    }
++    if(newCreateInfo.minBlockCount > newCreateInfo.maxBlockCount)
++    {
++        return VK_ERROR_INITIALIZATION_FAILED;
++    }
++    // Memory type index out of range or forbidden.
++    if(pCreateInfo->memoryTypeIndex >= GetMemoryTypeCount() ||
++        ((1u << pCreateInfo->memoryTypeIndex) & m_GlobalMemoryTypeBits) == 0)
++    {
++        return VK_ERROR_FEATURE_NOT_PRESENT;
++    }
++    if(newCreateInfo.minAllocationAlignment > 0)
++    {
++        VMA_ASSERT(VmaIsPow2(newCreateInfo.minAllocationAlignment));
++    }
++
++    const VkDeviceSize preferredBlockSize = CalcPreferredBlockSize(newCreateInfo.memoryTypeIndex);
++
++    *pPool = vma_new(this, VmaPool_T)(this, newCreateInfo, preferredBlockSize);
++
++    VkResult res = (*pPool)->m_BlockVector.CreateMinBlocks();
++    if(res != VK_SUCCESS)
++    {
++        vma_delete(this, *pPool);
++        *pPool = VMA_NULL;
++        return res;
++    }
++
++    // Add to m_Pools.
++    {
++        VmaMutexLockWrite lock(m_PoolsMutex, m_UseMutex);
++        (*pPool)->SetId(m_NextPoolId++);
++        m_Pools.PushBack(*pPool);
++    }
++
++    return VK_SUCCESS;
++}
++
++void VmaAllocator_T::DestroyPool(VmaPool pool)
++{
++    // Remove from m_Pools.
++    {
++        VmaMutexLockWrite lock(m_PoolsMutex, m_UseMutex);
++        m_Pools.Remove(pool);
++    }
++
++    vma_delete(this, pool);
++}
++
++void VmaAllocator_T::GetPoolStatistics(VmaPool pool, VmaStatistics* pPoolStats)
++{
++    VmaClearStatistics(*pPoolStats);
++    pool->m_BlockVector.AddStatistics(*pPoolStats);
++    pool->m_DedicatedAllocations.AddStatistics(*pPoolStats);
++}
++
++void VmaAllocator_T::CalculatePoolStatistics(VmaPool pool, VmaDetailedStatistics* pPoolStats)
++{
++    VmaClearDetailedStatistics(*pPoolStats);
++    pool->m_BlockVector.AddDetailedStatistics(*pPoolStats);
++    pool->m_DedicatedAllocations.AddDetailedStatistics(*pPoolStats);
++}
++
++void VmaAllocator_T::SetCurrentFrameIndex(uint32_t frameIndex)
++{
++    m_CurrentFrameIndex.store(frameIndex);
++
++#if VMA_MEMORY_BUDGET
++    if(m_UseExtMemoryBudget)
++    {
++        UpdateVulkanBudget();
++    }
++#endif // #if VMA_MEMORY_BUDGET
++}
++
++VkResult VmaAllocator_T::CheckPoolCorruption(VmaPool hPool)
++{
++    return hPool->m_BlockVector.CheckCorruption();
++}
++
++VkResult VmaAllocator_T::CheckCorruption(uint32_t memoryTypeBits)
++{
++    VkResult finalRes = VK_ERROR_FEATURE_NOT_PRESENT;
++
++    // Process default pools.
++    for(uint32_t memTypeIndex = 0; memTypeIndex < GetMemoryTypeCount(); ++memTypeIndex)
++    {
++        VmaBlockVector* const pBlockVector = m_pBlockVectors[memTypeIndex];
++        if(pBlockVector != VMA_NULL)
++        {
++            VkResult localRes = pBlockVector->CheckCorruption();
++            switch(localRes)
++            {
++            case VK_ERROR_FEATURE_NOT_PRESENT:
++                break;
++            case VK_SUCCESS:
++                finalRes = VK_SUCCESS;
++                break;
++            default:
++                return localRes;
++            }
++        }
++    }
++
++    // Process custom pools.
++    {
++        VmaMutexLockRead lock(m_PoolsMutex, m_UseMutex);
++        for(VmaPool pool = m_Pools.Front(); pool != VMA_NULL; pool = m_Pools.GetNext(pool))
++        {
++            if(((1u << pool->m_BlockVector.GetMemoryTypeIndex()) & memoryTypeBits) != 0)
++            {
++                VkResult localRes = pool->m_BlockVector.CheckCorruption();
++                switch(localRes)
++                {
++                case VK_ERROR_FEATURE_NOT_PRESENT:
++                    break;
++                case VK_SUCCESS:
++                    finalRes = VK_SUCCESS;
++                    break;
++                default:
++                    return localRes;
++                }
++            }
++        }
++    }
++
++    return finalRes;
++}
++
++VkResult VmaAllocator_T::AllocateVulkanMemory(const VkMemoryAllocateInfo* pAllocateInfo, VkDeviceMemory* pMemory)
++{
++    AtomicTransactionalIncrement<uint32_t> deviceMemoryCountIncrement;
++    const uint64_t prevDeviceMemoryCount = deviceMemoryCountIncrement.Increment(&m_DeviceMemoryCount);
++#if VMA_DEBUG_DONT_EXCEED_MAX_MEMORY_ALLOCATION_COUNT
++    if(prevDeviceMemoryCount >= m_PhysicalDeviceProperties.limits.maxMemoryAllocationCount)
++    {
++        return VK_ERROR_TOO_MANY_OBJECTS;
++    }
++#endif
++
++    const uint32_t heapIndex = MemoryTypeIndexToHeapIndex(pAllocateInfo->memoryTypeIndex);
++
++    // HeapSizeLimit is in effect for this heap.
++    if((m_HeapSizeLimitMask & (1u << heapIndex)) != 0)
++    {
++        const VkDeviceSize heapSize = m_MemProps.memoryHeaps[heapIndex].size;
++        VkDeviceSize blockBytes = m_Budget.m_BlockBytes[heapIndex];
++        for(;;)
++        {
++            const VkDeviceSize blockBytesAfterAllocation = blockBytes + pAllocateInfo->allocationSize;
++            if(blockBytesAfterAllocation > heapSize)
++            {
++                return VK_ERROR_OUT_OF_DEVICE_MEMORY;
++            }
++            if(m_Budget.m_BlockBytes[heapIndex].compare_exchange_strong(blockBytes, blockBytesAfterAllocation))
++            {
++                break;
++            }
++        }
++    }
++    else
++    {
++        m_Budget.m_BlockBytes[heapIndex] += pAllocateInfo->allocationSize;
++    }
++    ++m_Budget.m_BlockCount[heapIndex];
++
++    // VULKAN CALL vkAllocateMemory.
++    VkResult res = (*m_VulkanFunctions.vkAllocateMemory)(m_hDevice, pAllocateInfo, GetAllocationCallbacks(), pMemory);
++
++    if(res == VK_SUCCESS)
++    {
++#if VMA_MEMORY_BUDGET
++        ++m_Budget.m_OperationsSinceBudgetFetch;
++#endif
++
++        // Informative callback.
++        if(m_DeviceMemoryCallbacks.pfnAllocate != VMA_NULL)
++        {
++            (*m_DeviceMemoryCallbacks.pfnAllocate)(this, pAllocateInfo->memoryTypeIndex, *pMemory, pAllocateInfo->allocationSize, m_DeviceMemoryCallbacks.pUserData);
++        }
++
++        deviceMemoryCountIncrement.Commit();
++    }
++    else
++    {
++        --m_Budget.m_BlockCount[heapIndex];
++        m_Budget.m_BlockBytes[heapIndex] -= pAllocateInfo->allocationSize;
++    }
++
++    return res;
++}
++
++void VmaAllocator_T::FreeVulkanMemory(uint32_t memoryType, VkDeviceSize size, VkDeviceMemory hMemory)
++{
++    // Informative callback.
++    if(m_DeviceMemoryCallbacks.pfnFree != VMA_NULL)
++    {
++        (*m_DeviceMemoryCallbacks.pfnFree)(this, memoryType, hMemory, size, m_DeviceMemoryCallbacks.pUserData);
++    }
++
++    // VULKAN CALL vkFreeMemory.
++    (*m_VulkanFunctions.vkFreeMemory)(m_hDevice, hMemory, GetAllocationCallbacks());
++
++    const uint32_t heapIndex = MemoryTypeIndexToHeapIndex(memoryType);
++    --m_Budget.m_BlockCount[heapIndex];
++    m_Budget.m_BlockBytes[heapIndex] -= size;
++
++    --m_DeviceMemoryCount;
++}
++
++VkResult VmaAllocator_T::BindVulkanBuffer(
++    VkDeviceMemory memory,
++    VkDeviceSize memoryOffset,
++    VkBuffer buffer,
++    const void* pNext)
++{
++    if(pNext != VMA_NULL)
++    {
++#if VMA_VULKAN_VERSION >= 1001000 || VMA_BIND_MEMORY2
++        if((m_UseKhrBindMemory2 || m_VulkanApiVersion >= VK_MAKE_VERSION(1, 1, 0)) &&
++            m_VulkanFunctions.vkBindBufferMemory2KHR != VMA_NULL)
++        {
++            VkBindBufferMemoryInfoKHR bindBufferMemoryInfo = { VK_STRUCTURE_TYPE_BIND_BUFFER_MEMORY_INFO_KHR };
++            bindBufferMemoryInfo.pNext = pNext;
++            bindBufferMemoryInfo.buffer = buffer;
++            bindBufferMemoryInfo.memory = memory;
++            bindBufferMemoryInfo.memoryOffset = memoryOffset;
++            return (*m_VulkanFunctions.vkBindBufferMemory2KHR)(m_hDevice, 1, &bindBufferMemoryInfo);
++        }
++        else
++#endif // #if VMA_VULKAN_VERSION >= 1001000 || VMA_BIND_MEMORY2
++        {
++            return VK_ERROR_EXTENSION_NOT_PRESENT;
++        }
++    }
++    else
++    {
++        return (*m_VulkanFunctions.vkBindBufferMemory)(m_hDevice, buffer, memory, memoryOffset);
++    }
++}
++
++VkResult VmaAllocator_T::BindVulkanImage(
++    VkDeviceMemory memory,
++    VkDeviceSize memoryOffset,
++    VkImage image,
++    const void* pNext)
++{
++    if(pNext != VMA_NULL)
++    {
++#if VMA_VULKAN_VERSION >= 1001000 || VMA_BIND_MEMORY2
++        if((m_UseKhrBindMemory2 || m_VulkanApiVersion >= VK_MAKE_VERSION(1, 1, 0)) &&
++            m_VulkanFunctions.vkBindImageMemory2KHR != VMA_NULL)
++        {
++            VkBindImageMemoryInfoKHR bindBufferMemoryInfo = { VK_STRUCTURE_TYPE_BIND_IMAGE_MEMORY_INFO_KHR };
++            bindBufferMemoryInfo.pNext = pNext;
++            bindBufferMemoryInfo.image = image;
++            bindBufferMemoryInfo.memory = memory;
++            bindBufferMemoryInfo.memoryOffset = memoryOffset;
++            return (*m_VulkanFunctions.vkBindImageMemory2KHR)(m_hDevice, 1, &bindBufferMemoryInfo);
++        }
++        else
++#endif // #if VMA_BIND_MEMORY2
++        {
++            return VK_ERROR_EXTENSION_NOT_PRESENT;
++        }
++    }
++    else
++    {
++        return (*m_VulkanFunctions.vkBindImageMemory)(m_hDevice, image, memory, memoryOffset);
++    }
++}
++
++VkResult VmaAllocator_T::Map(VmaAllocation hAllocation, void** ppData)
++{
++    switch(hAllocation->GetType())
++    {
++    case VmaAllocation_T::ALLOCATION_TYPE_BLOCK:
++        {
++            VmaDeviceMemoryBlock* const pBlock = hAllocation->GetBlock();
++            char *pBytes = VMA_NULL;
++            VkResult res = pBlock->Map(this, 1, (void**)&pBytes);
++            if(res == VK_SUCCESS)
++            {
++                *ppData = pBytes + (ptrdiff_t)hAllocation->GetOffset();
++                hAllocation->BlockAllocMap();
++            }
++            return res;
++        }
++    case VmaAllocation_T::ALLOCATION_TYPE_DEDICATED:
++        return hAllocation->DedicatedAllocMap(this, ppData);
++    default:
++        VMA_ASSERT(0);
++        return VK_ERROR_MEMORY_MAP_FAILED;
++    }
++}
++
++void VmaAllocator_T::Unmap(VmaAllocation hAllocation)
++{
++    switch(hAllocation->GetType())
++    {
++    case VmaAllocation_T::ALLOCATION_TYPE_BLOCK:
++        {
++            VmaDeviceMemoryBlock* const pBlock = hAllocation->GetBlock();
++            hAllocation->BlockAllocUnmap();
++            pBlock->Unmap(this, 1);
++        }
++        break;
++    case VmaAllocation_T::ALLOCATION_TYPE_DEDICATED:
++        hAllocation->DedicatedAllocUnmap(this);
++        break;
++    default:
++        VMA_ASSERT(0);
++    }
++}
++
++VkResult VmaAllocator_T::BindBufferMemory(
++    VmaAllocation hAllocation,
++    VkDeviceSize allocationLocalOffset,
++    VkBuffer hBuffer,
++    const void* pNext)
++{
++    VkResult res = VK_SUCCESS;
++    switch(hAllocation->GetType())
++    {
++    case VmaAllocation_T::ALLOCATION_TYPE_DEDICATED:
++        res = BindVulkanBuffer(hAllocation->GetMemory(), allocationLocalOffset, hBuffer, pNext);
++        break;
++    case VmaAllocation_T::ALLOCATION_TYPE_BLOCK:
++    {
++        VmaDeviceMemoryBlock* const pBlock = hAllocation->GetBlock();
++        VMA_ASSERT(pBlock && "Binding buffer to allocation that doesn't belong to any block.");
++        res = pBlock->BindBufferMemory(this, hAllocation, allocationLocalOffset, hBuffer, pNext);
++        break;
++    }
++    default:
++        VMA_ASSERT(0);
++    }
++    return res;
++}
++
++VkResult VmaAllocator_T::BindImageMemory(
++    VmaAllocation hAllocation,
++    VkDeviceSize allocationLocalOffset,
++    VkImage hImage,
++    const void* pNext)
++{
++    VkResult res = VK_SUCCESS;
++    switch(hAllocation->GetType())
++    {
++    case VmaAllocation_T::ALLOCATION_TYPE_DEDICATED:
++        res = BindVulkanImage(hAllocation->GetMemory(), allocationLocalOffset, hImage, pNext);
++        break;
++    case VmaAllocation_T::ALLOCATION_TYPE_BLOCK:
++    {
++        VmaDeviceMemoryBlock* pBlock = hAllocation->GetBlock();
++        VMA_ASSERT(pBlock && "Binding image to allocation that doesn't belong to any block.");
++        res = pBlock->BindImageMemory(this, hAllocation, allocationLocalOffset, hImage, pNext);
++        break;
++    }
++    default:
++        VMA_ASSERT(0);
++    }
++    return res;
++}
++
++VkResult VmaAllocator_T::FlushOrInvalidateAllocation(
++    VmaAllocation hAllocation,
++    VkDeviceSize offset, VkDeviceSize size,
++    VMA_CACHE_OPERATION op)
++{
++    VkResult res = VK_SUCCESS;
++
++    VkMappedMemoryRange memRange = {};
++    if(GetFlushOrInvalidateRange(hAllocation, offset, size, memRange))
++    {
++        switch(op)
++        {
++        case VMA_CACHE_FLUSH:
++            res = (*GetVulkanFunctions().vkFlushMappedMemoryRanges)(m_hDevice, 1, &memRange);
++            break;
++        case VMA_CACHE_INVALIDATE:
++            res = (*GetVulkanFunctions().vkInvalidateMappedMemoryRanges)(m_hDevice, 1, &memRange);
++            break;
++        default:
++            VMA_ASSERT(0);
++        }
++    }
++    // else: Just ignore this call.
++    return res;
++}
++
++VkResult VmaAllocator_T::FlushOrInvalidateAllocations(
++    uint32_t allocationCount,
++    const VmaAllocation* allocations,
++    const VkDeviceSize* offsets, const VkDeviceSize* sizes,
++    VMA_CACHE_OPERATION op)
++{
++    typedef VmaStlAllocator<VkMappedMemoryRange> RangeAllocator;
++    typedef VmaSmallVector<VkMappedMemoryRange, RangeAllocator, 16> RangeVector;
++    RangeVector ranges = RangeVector(RangeAllocator(GetAllocationCallbacks()));
++
++    for(uint32_t allocIndex = 0; allocIndex < allocationCount; ++allocIndex)
++    {
++        const VmaAllocation alloc = allocations[allocIndex];
++        const VkDeviceSize offset = offsets != VMA_NULL ? offsets[allocIndex] : 0;
++        const VkDeviceSize size = sizes != VMA_NULL ? sizes[allocIndex] : VK_WHOLE_SIZE;
++        VkMappedMemoryRange newRange;
++        if(GetFlushOrInvalidateRange(alloc, offset, size, newRange))
++        {
++            ranges.push_back(newRange);
++        }
++    }
++
++    VkResult res = VK_SUCCESS;
++    if(!ranges.empty())
++    {
++        switch(op)
++        {
++        case VMA_CACHE_FLUSH:
++            res = (*GetVulkanFunctions().vkFlushMappedMemoryRanges)(m_hDevice, (uint32_t)ranges.size(), ranges.data());
++            break;
++        case VMA_CACHE_INVALIDATE:
++            res = (*GetVulkanFunctions().vkInvalidateMappedMemoryRanges)(m_hDevice, (uint32_t)ranges.size(), ranges.data());
++            break;
++        default:
++            VMA_ASSERT(0);
++        }
++    }
++    // else: Just ignore this call.
++    return res;
++}
++
++void VmaAllocator_T::FreeDedicatedMemory(const VmaAllocation allocation)
++{
++    VMA_ASSERT(allocation && allocation->GetType() == VmaAllocation_T::ALLOCATION_TYPE_DEDICATED);
++
++    const uint32_t memTypeIndex = allocation->GetMemoryTypeIndex();
++    VmaPool parentPool = allocation->GetParentPool();
++    if(parentPool == VK_NULL_HANDLE)
++    {
++        // Default pool
++        m_DedicatedAllocations[memTypeIndex].Unregister(allocation);
++    }
++    else
++    {
++        // Custom pool
++        parentPool->m_DedicatedAllocations.Unregister(allocation);
++    }
++
++    VkDeviceMemory hMemory = allocation->GetMemory();
++
++    /*
++    There is no need to call this, because Vulkan spec allows to skip vkUnmapMemory
++    before vkFreeMemory.
++
++    if(allocation->GetMappedData() != VMA_NULL)
++    {
++        (*m_VulkanFunctions.vkUnmapMemory)(m_hDevice, hMemory);
++    }
++    */
++
++    FreeVulkanMemory(memTypeIndex, allocation->GetSize(), hMemory);
++
++    m_Budget.RemoveAllocation(MemoryTypeIndexToHeapIndex(allocation->GetMemoryTypeIndex()), allocation->GetSize());
++    m_AllocationObjectAllocator.Free(allocation);
++
++    VMA_DEBUG_LOG("    Freed DedicatedMemory MemoryTypeIndex=%u", memTypeIndex);
++}
++
++uint32_t VmaAllocator_T::CalculateGpuDefragmentationMemoryTypeBits() const
++{
++    VkBufferCreateInfo dummyBufCreateInfo;
++    VmaFillGpuDefragmentationBufferCreateInfo(dummyBufCreateInfo);
++
++    uint32_t memoryTypeBits = 0;
++
++    // Create buffer.
++    VkBuffer buf = VK_NULL_HANDLE;
++    VkResult res = (*GetVulkanFunctions().vkCreateBuffer)(
++        m_hDevice, &dummyBufCreateInfo, GetAllocationCallbacks(), &buf);
++    if(res == VK_SUCCESS)
++    {
++        // Query for supported memory types.
++        VkMemoryRequirements memReq;
++        (*GetVulkanFunctions().vkGetBufferMemoryRequirements)(m_hDevice, buf, &memReq);
++        memoryTypeBits = memReq.memoryTypeBits;
++
++        // Destroy buffer.
++        (*GetVulkanFunctions().vkDestroyBuffer)(m_hDevice, buf, GetAllocationCallbacks());
++    }
++
++    return memoryTypeBits;
++}
++
++uint32_t VmaAllocator_T::CalculateGlobalMemoryTypeBits() const
++{
++    // Make sure memory information is already fetched.
++    VMA_ASSERT(GetMemoryTypeCount() > 0);
++
++    uint32_t memoryTypeBits = UINT32_MAX;
++
++    if(!m_UseAmdDeviceCoherentMemory)
++    {
++        // Exclude memory types that have VK_MEMORY_PROPERTY_DEVICE_COHERENT_BIT_AMD.
++        for(uint32_t memTypeIndex = 0; memTypeIndex < GetMemoryTypeCount(); ++memTypeIndex)
++        {
++            if((m_MemProps.memoryTypes[memTypeIndex].propertyFlags & VK_MEMORY_PROPERTY_DEVICE_COHERENT_BIT_AMD_COPY) != 0)
++            {
++                memoryTypeBits &= ~(1u << memTypeIndex);
++            }
++        }
++    }
++
++    return memoryTypeBits;
++}
++
++bool VmaAllocator_T::GetFlushOrInvalidateRange(
++    VmaAllocation allocation,
++    VkDeviceSize offset, VkDeviceSize size,
++    VkMappedMemoryRange& outRange) const
++{
++    const uint32_t memTypeIndex = allocation->GetMemoryTypeIndex();
++    if(size > 0 && IsMemoryTypeNonCoherent(memTypeIndex))
++    {
++        const VkDeviceSize nonCoherentAtomSize = m_PhysicalDeviceProperties.limits.nonCoherentAtomSize;
++        const VkDeviceSize allocationSize = allocation->GetSize();
++        VMA_ASSERT(offset <= allocationSize);
++
++        outRange.sType = VK_STRUCTURE_TYPE_MAPPED_MEMORY_RANGE;
++        outRange.pNext = VMA_NULL;
++        outRange.memory = allocation->GetMemory();
++
++        switch(allocation->GetType())
++        {
++        case VmaAllocation_T::ALLOCATION_TYPE_DEDICATED:
++            outRange.offset = VmaAlignDown(offset, nonCoherentAtomSize);
++            if(size == VK_WHOLE_SIZE)
++            {
++                outRange.size = allocationSize - outRange.offset;
++            }
++            else
++            {
++                VMA_ASSERT(offset + size <= allocationSize);
++                outRange.size = VMA_MIN(
++                    VmaAlignUp(size + (offset - outRange.offset), nonCoherentAtomSize),
++                    allocationSize - outRange.offset);
++            }
++            break;
++        case VmaAllocation_T::ALLOCATION_TYPE_BLOCK:
++        {
++            // 1. Still within this allocation.
++            outRange.offset = VmaAlignDown(offset, nonCoherentAtomSize);
++            if(size == VK_WHOLE_SIZE)
++            {
++                size = allocationSize - offset;
++            }
++            else
++            {
++                VMA_ASSERT(offset + size <= allocationSize);
++            }
++            outRange.size = VmaAlignUp(size + (offset - outRange.offset), nonCoherentAtomSize);
++
++            // 2. Adjust to whole block.
++            const VkDeviceSize allocationOffset = allocation->GetOffset();
++            VMA_ASSERT(allocationOffset % nonCoherentAtomSize == 0);
++            const VkDeviceSize blockSize = allocation->GetBlock()->m_pMetadata->GetSize();
++            outRange.offset += allocationOffset;
++            outRange.size = VMA_MIN(outRange.size, blockSize - outRange.offset);
++
++            break;
++        }
++        default:
++            VMA_ASSERT(0);
++        }
++        return true;
++    }
++    return false;
++}
++
++#if VMA_MEMORY_BUDGET
++void VmaAllocator_T::UpdateVulkanBudget()
++{
++    VMA_ASSERT(m_UseExtMemoryBudget);
++
++    VkPhysicalDeviceMemoryProperties2KHR memProps = { VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_MEMORY_PROPERTIES_2_KHR };
++
++    VkPhysicalDeviceMemoryBudgetPropertiesEXT budgetProps = { VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_MEMORY_BUDGET_PROPERTIES_EXT };
++    VmaPnextChainPushFront(&memProps, &budgetProps);
++
++    GetVulkanFunctions().vkGetPhysicalDeviceMemoryProperties2KHR(m_PhysicalDevice, &memProps);
++
++    {
++        VmaMutexLockWrite lockWrite(m_Budget.m_BudgetMutex, m_UseMutex);
++
++        for(uint32_t heapIndex = 0; heapIndex < GetMemoryHeapCount(); ++heapIndex)
++        {
++            m_Budget.m_VulkanUsage[heapIndex] = budgetProps.heapUsage[heapIndex];
++            m_Budget.m_VulkanBudget[heapIndex] = budgetProps.heapBudget[heapIndex];
++            m_Budget.m_BlockBytesAtBudgetFetch[heapIndex] = m_Budget.m_BlockBytes[heapIndex].load();
++
++            // Some bugged drivers return the budget incorrectly, e.g. 0 or much bigger than heap size.
++            if(m_Budget.m_VulkanBudget[heapIndex] == 0)
++            {
++                m_Budget.m_VulkanBudget[heapIndex] = m_MemProps.memoryHeaps[heapIndex].size * 8 / 10; // 80% heuristics.
++            }
++            else if(m_Budget.m_VulkanBudget[heapIndex] > m_MemProps.memoryHeaps[heapIndex].size)
++            {
++                m_Budget.m_VulkanBudget[heapIndex] = m_MemProps.memoryHeaps[heapIndex].size;
++            }
++            if(m_Budget.m_VulkanUsage[heapIndex] == 0 && m_Budget.m_BlockBytesAtBudgetFetch[heapIndex] > 0)
++            {
++                m_Budget.m_VulkanUsage[heapIndex] = m_Budget.m_BlockBytesAtBudgetFetch[heapIndex];
++            }
++        }
++        m_Budget.m_OperationsSinceBudgetFetch = 0;
++    }
++}
++#endif // VMA_MEMORY_BUDGET
++
++void VmaAllocator_T::FillAllocation(const VmaAllocation hAllocation, uint8_t pattern)
++{
++    if(VMA_DEBUG_INITIALIZE_ALLOCATIONS &&
++        (m_MemProps.memoryTypes[hAllocation->GetMemoryTypeIndex()].propertyFlags & VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT) != 0)
++    {
++        void* pData = VMA_NULL;
++        VkResult res = Map(hAllocation, &pData);
++        if(res == VK_SUCCESS)
++        {
++            memset(pData, (int)pattern, (size_t)hAllocation->GetSize());
++            FlushOrInvalidateAllocation(hAllocation, 0, VK_WHOLE_SIZE, VMA_CACHE_FLUSH);
++            Unmap(hAllocation);
++        }
++        else
++        {
++            VMA_ASSERT(0 && "VMA_DEBUG_INITIALIZE_ALLOCATIONS is enabled, but couldn't map memory to fill allocation.");
++        }
++    }
++}
++
++uint32_t VmaAllocator_T::GetGpuDefragmentationMemoryTypeBits()
++{
++    uint32_t memoryTypeBits = m_GpuDefragmentationMemoryTypeBits.load();
++    if(memoryTypeBits == UINT32_MAX)
++    {
++        memoryTypeBits = CalculateGpuDefragmentationMemoryTypeBits();
++        m_GpuDefragmentationMemoryTypeBits.store(memoryTypeBits);
++    }
++    return memoryTypeBits;
++}
++
++#if VMA_STATS_STRING_ENABLED
++void VmaAllocator_T::PrintDetailedMap(VmaJsonWriter& json)
++{
++    json.WriteString("DefaultPools");
++    json.BeginObject();
++    {
++        for (uint32_t memTypeIndex = 0; memTypeIndex < GetMemoryTypeCount(); ++memTypeIndex)
++        {
++            VmaBlockVector* pBlockVector = m_pBlockVectors[memTypeIndex];
++            VmaDedicatedAllocationList& dedicatedAllocList = m_DedicatedAllocations[memTypeIndex];
++            if (pBlockVector != VMA_NULL)
++            {
++                json.BeginString("Type ");
++                json.ContinueString(memTypeIndex);
++                json.EndString();
++                json.BeginObject();
++                {
++                    json.WriteString("PreferredBlockSize");
++                    json.WriteNumber(pBlockVector->GetPreferredBlockSize());
++
++                    json.WriteString("Blocks");
++                    pBlockVector->PrintDetailedMap(json);
++
++                    json.WriteString("DedicatedAllocations");
++                    dedicatedAllocList.BuildStatsString(json);
++                }
++                json.EndObject();
++            }
++        }
++    }
++    json.EndObject();
++
++    json.WriteString("CustomPools");
++    json.BeginObject();
++    {
++        VmaMutexLockRead lock(m_PoolsMutex, m_UseMutex);
++        if (!m_Pools.IsEmpty())
++        {
++            for (uint32_t memTypeIndex = 0; memTypeIndex < GetMemoryTypeCount(); ++memTypeIndex)
++            {
++                bool displayType = true;
++                size_t index = 0;
++                for (VmaPool pool = m_Pools.Front(); pool != VMA_NULL; pool = m_Pools.GetNext(pool))
++                {
++                    VmaBlockVector& blockVector = pool->m_BlockVector;
++                    if (blockVector.GetMemoryTypeIndex() == memTypeIndex)
++                    {
++                        if (displayType)
++                        {
++                            json.BeginString("Type ");
++                            json.ContinueString(memTypeIndex);
++                            json.EndString();
++                            json.BeginArray();
++                            displayType = false;
++                        }
++
++                        json.BeginObject();
++                        {
++                            json.WriteString("Name");
++                            json.BeginString();
++                            json.ContinueString_Size(index++);
++                            if (pool->GetName())
++                            {
++                                json.ContinueString(" - ");
++                                json.ContinueString(pool->GetName());
++                            }
++                            json.EndString();
++
++                            json.WriteString("PreferredBlockSize");
++                            json.WriteNumber(blockVector.GetPreferredBlockSize());
++
++                            json.WriteString("Blocks");
++                            blockVector.PrintDetailedMap(json);
++
++                            json.WriteString("DedicatedAllocations");
++                            pool->m_DedicatedAllocations.BuildStatsString(json);
++                        }
++                        json.EndObject();
++                    }
++                }
++
++                if (!displayType)
++                    json.EndArray();
++            }
++        }
++    }
++    json.EndObject();
++}
++#endif // VMA_STATS_STRING_ENABLED
++#endif // _VMA_ALLOCATOR_T_FUNCTIONS
++
++
++#ifndef _VMA_PUBLIC_INTERFACE
++VMA_CALL_PRE VkResult VMA_CALL_POST vmaCreateAllocator(
++    const VmaAllocatorCreateInfo* pCreateInfo,
++    VmaAllocator* pAllocator)
++{
++    VMA_ASSERT(pCreateInfo && pAllocator);
++    VMA_ASSERT(pCreateInfo->vulkanApiVersion == 0 ||
++        (VK_VERSION_MAJOR(pCreateInfo->vulkanApiVersion) == 1 && VK_VERSION_MINOR(pCreateInfo->vulkanApiVersion) <= 3));
++    VMA_DEBUG_LOG("vmaCreateAllocator");
++    *pAllocator = vma_new(pCreateInfo->pAllocationCallbacks, VmaAllocator_T)(pCreateInfo);
++    VkResult result = (*pAllocator)->Init(pCreateInfo);
++    if(result < 0)
++    {
++        vma_delete(pCreateInfo->pAllocationCallbacks, *pAllocator);
++        *pAllocator = VK_NULL_HANDLE;
++    }
++    return result;
++}
++
++VMA_CALL_PRE void VMA_CALL_POST vmaDestroyAllocator(
++    VmaAllocator allocator)
++{
++    if(allocator != VK_NULL_HANDLE)
++    {
++        VMA_DEBUG_LOG("vmaDestroyAllocator");
++        VkAllocationCallbacks allocationCallbacks = allocator->m_AllocationCallbacks; // Have to copy the callbacks when destroying.
++        vma_delete(&allocationCallbacks, allocator);
++    }
++}
++
++VMA_CALL_PRE void VMA_CALL_POST vmaGetAllocatorInfo(VmaAllocator allocator, VmaAllocatorInfo* pAllocatorInfo)
++{
++    VMA_ASSERT(allocator && pAllocatorInfo);
++    pAllocatorInfo->instance = allocator->m_hInstance;
++    pAllocatorInfo->physicalDevice = allocator->GetPhysicalDevice();
++    pAllocatorInfo->device = allocator->m_hDevice;
++}
++
++VMA_CALL_PRE void VMA_CALL_POST vmaGetPhysicalDeviceProperties(
++    VmaAllocator allocator,
++    const VkPhysicalDeviceProperties **ppPhysicalDeviceProperties)
++{
++    VMA_ASSERT(allocator && ppPhysicalDeviceProperties);
++    *ppPhysicalDeviceProperties = &allocator->m_PhysicalDeviceProperties;
++}
++
++VMA_CALL_PRE void VMA_CALL_POST vmaGetMemoryProperties(
++    VmaAllocator allocator,
++    const VkPhysicalDeviceMemoryProperties** ppPhysicalDeviceMemoryProperties)
++{
++    VMA_ASSERT(allocator && ppPhysicalDeviceMemoryProperties);
++    *ppPhysicalDeviceMemoryProperties = &allocator->m_MemProps;
++}
++
++VMA_CALL_PRE void VMA_CALL_POST vmaGetMemoryTypeProperties(
++    VmaAllocator allocator,
++    uint32_t memoryTypeIndex,
++    VkMemoryPropertyFlags* pFlags)
++{
++    VMA_ASSERT(allocator && pFlags);
++    VMA_ASSERT(memoryTypeIndex < allocator->GetMemoryTypeCount());
++    *pFlags = allocator->m_MemProps.memoryTypes[memoryTypeIndex].propertyFlags;
++}
++
++VMA_CALL_PRE void VMA_CALL_POST vmaSetCurrentFrameIndex(
++    VmaAllocator allocator,
++    uint32_t frameIndex)
++{
++    VMA_ASSERT(allocator);
++
++    VMA_DEBUG_GLOBAL_MUTEX_LOCK
++
++    allocator->SetCurrentFrameIndex(frameIndex);
++}
++
++VMA_CALL_PRE void VMA_CALL_POST vmaCalculateStatistics(
++    VmaAllocator allocator,
++    VmaTotalStatistics* pStats)
++{
++    VMA_ASSERT(allocator && pStats);
++    VMA_DEBUG_GLOBAL_MUTEX_LOCK
++    allocator->CalculateStatistics(pStats);
++}
++
++VMA_CALL_PRE void VMA_CALL_POST vmaGetHeapBudgets(
++    VmaAllocator allocator,
++    VmaBudget* pBudgets)
++{
++    VMA_ASSERT(allocator && pBudgets);
++    VMA_DEBUG_GLOBAL_MUTEX_LOCK
++    allocator->GetHeapBudgets(pBudgets, 0, allocator->GetMemoryHeapCount());
++}
++
++#if VMA_STATS_STRING_ENABLED
++
++VMA_CALL_PRE void VMA_CALL_POST vmaBuildStatsString(
++    VmaAllocator allocator,
++    char** ppStatsString,
++    VkBool32 detailedMap)
++{
++    VMA_ASSERT(allocator && ppStatsString);
++    VMA_DEBUG_GLOBAL_MUTEX_LOCK
++
++    VmaStringBuilder sb(allocator->GetAllocationCallbacks());
++    {
++        VmaBudget budgets[VK_MAX_MEMORY_HEAPS];
++        allocator->GetHeapBudgets(budgets, 0, allocator->GetMemoryHeapCount());
++
++        VmaTotalStatistics stats;
++        allocator->CalculateStatistics(&stats);
++
++        VmaJsonWriter json(allocator->GetAllocationCallbacks(), sb);
++        json.BeginObject();
++        {
++            json.WriteString("General");
++            json.BeginObject();
++            {
++                const VkPhysicalDeviceProperties& deviceProperties = allocator->m_PhysicalDeviceProperties;
++                const VkPhysicalDeviceMemoryProperties& memoryProperties = allocator->m_MemProps;
++
++                json.WriteString("API");
++                json.WriteString("Vulkan");
++
++                json.WriteString("apiVersion");
++                json.BeginString();
++                json.ContinueString(VK_API_VERSION_MAJOR(deviceProperties.apiVersion));
++                json.ContinueString(".");
++                json.ContinueString(VK_API_VERSION_MINOR(deviceProperties.apiVersion));
++                json.ContinueString(".");
++                json.ContinueString(VK_API_VERSION_PATCH(deviceProperties.apiVersion));
++                json.EndString();
++
++                json.WriteString("GPU");
++                json.WriteString(deviceProperties.deviceName);
++                json.WriteString("deviceType");
++                json.WriteNumber(static_cast<uint32_t>(deviceProperties.deviceType));
++
++                json.WriteString("maxMemoryAllocationCount");
++                json.WriteNumber(deviceProperties.limits.maxMemoryAllocationCount);
++                json.WriteString("bufferImageGranularity");
++                json.WriteNumber(deviceProperties.limits.bufferImageGranularity);
++                json.WriteString("nonCoherentAtomSize");
++                json.WriteNumber(deviceProperties.limits.nonCoherentAtomSize);
++
++                json.WriteString("memoryHeapCount");
++                json.WriteNumber(memoryProperties.memoryHeapCount);
++                json.WriteString("memoryTypeCount");
++                json.WriteNumber(memoryProperties.memoryTypeCount);
++            }
++            json.EndObject();
++        }
++        {
++            json.WriteString("Total");
++            VmaPrintDetailedStatistics(json, stats.total);
++        }
++        {
++            json.WriteString("MemoryInfo");
++            json.BeginObject();
++            {
++                for (uint32_t heapIndex = 0; heapIndex < allocator->GetMemoryHeapCount(); ++heapIndex)
++                {
++                    json.BeginString("Heap ");
++                    json.ContinueString(heapIndex);
++                    json.EndString();
++                    json.BeginObject();
++                    {
++                        const VkMemoryHeap& heapInfo = allocator->m_MemProps.memoryHeaps[heapIndex];
++                        json.WriteString("Flags");
++                        json.BeginArray(true);
++                        {
++                            if (heapInfo.flags & VK_MEMORY_HEAP_DEVICE_LOCAL_BIT)
++                                json.WriteString("DEVICE_LOCAL");
++                        #if VMA_VULKAN_VERSION >= 1001000
++                            if (heapInfo.flags & VK_MEMORY_HEAP_MULTI_INSTANCE_BIT)
++                                json.WriteString("MULTI_INSTANCE");
++                        #endif
++
++                            VkMemoryHeapFlags flags = heapInfo.flags &
++                                ~(VK_MEMORY_HEAP_DEVICE_LOCAL_BIT
++                        #if VMA_VULKAN_VERSION >= 1001000
++                                    | VK_MEMORY_HEAP_MULTI_INSTANCE_BIT
++                        #endif
++                                    );
++                            if (flags != 0)
++                                json.WriteNumber(flags);
++                        }
++                        json.EndArray();
++
++                        json.WriteString("Size");
++                        json.WriteNumber(heapInfo.size);
++
++                        json.WriteString("Budget");
++                        json.BeginObject();
++                        {
++                            json.WriteString("BudgetBytes");
++                            json.WriteNumber(budgets[heapIndex].budget);
++                            json.WriteString("UsageBytes");
++                            json.WriteNumber(budgets[heapIndex].usage);
++                        }
++                        json.EndObject();
++
++                        json.WriteString("Stats");
++                        VmaPrintDetailedStatistics(json, stats.memoryHeap[heapIndex]);
++
++                        json.WriteString("MemoryPools");
++                        json.BeginObject();
++                        {
++                            for (uint32_t typeIndex = 0; typeIndex < allocator->GetMemoryTypeCount(); ++typeIndex)
++                            {
++                                if (allocator->MemoryTypeIndexToHeapIndex(typeIndex) == heapIndex)
++                                {
++                                    json.BeginString("Type ");
++                                    json.ContinueString(typeIndex);
++                                    json.EndString();
++                                    json.BeginObject();
++                                    {
++                                        json.WriteString("Flags");
++                                        json.BeginArray(true);
++                                        {
++                                            VkMemoryPropertyFlags flags = allocator->m_MemProps.memoryTypes[typeIndex].propertyFlags;
++                                            if (flags & VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT)
++                                                json.WriteString("DEVICE_LOCAL");
++                                            if (flags & VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT)
++                                                json.WriteString("HOST_VISIBLE");
++                                            if (flags & VK_MEMORY_PROPERTY_HOST_COHERENT_BIT)
++                                                json.WriteString("HOST_COHERENT");
++                                            if (flags & VK_MEMORY_PROPERTY_HOST_CACHED_BIT)
++                                                json.WriteString("HOST_CACHED");
++                                            if (flags & VK_MEMORY_PROPERTY_LAZILY_ALLOCATED_BIT)
++                                                json.WriteString("LAZILY_ALLOCATED");
++                                        #if VMA_VULKAN_VERSION >= 1001000
++                                            if (flags & VK_MEMORY_PROPERTY_PROTECTED_BIT)
++                                                json.WriteString("PROTECTED");
++                                        #endif
++                                        #if VK_AMD_device_coherent_memory
++                                            if (flags & VK_MEMORY_PROPERTY_DEVICE_COHERENT_BIT_AMD_COPY)
++                                                json.WriteString("DEVICE_COHERENT_AMD");
++                                            if (flags & VK_MEMORY_PROPERTY_DEVICE_UNCACHED_BIT_AMD_COPY)
++                                                json.WriteString("DEVICE_UNCACHED_AMD");
++                                        #endif
++
++                                            flags &= ~(VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT
++                                        #if VMA_VULKAN_VERSION >= 1001000
++                                                | VK_MEMORY_PROPERTY_LAZILY_ALLOCATED_BIT
++                                        #endif
++                                        #if VK_AMD_device_coherent_memory
++                                                | VK_MEMORY_PROPERTY_DEVICE_COHERENT_BIT_AMD_COPY
++                                                | VK_MEMORY_PROPERTY_DEVICE_UNCACHED_BIT_AMD_COPY
++                                        #endif
++                                                | VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT
++                                                | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT
++                                                | VK_MEMORY_PROPERTY_HOST_CACHED_BIT);
++                                            if (flags != 0)
++                                                json.WriteNumber(flags);
++                                        }
++                                        json.EndArray();
++
++                                        json.WriteString("Stats");
++                                        VmaPrintDetailedStatistics(json, stats.memoryType[typeIndex]);
++                                    }
++                                    json.EndObject();
++                                }
++                            }
++
++                        }
++                        json.EndObject();
++                    }
++                    json.EndObject();
++                }
++            }
++            json.EndObject();
++        }
++
++        if (detailedMap == VK_TRUE)
++            allocator->PrintDetailedMap(json);
++
++        json.EndObject();
++    }
++
++    *ppStatsString = VmaCreateStringCopy(allocator->GetAllocationCallbacks(), sb.GetData(), sb.GetLength());
++}
++
++VMA_CALL_PRE void VMA_CALL_POST vmaFreeStatsString(
++    VmaAllocator allocator,
++    char* pStatsString)
++{
++    if(pStatsString != VMA_NULL)
++    {
++        VMA_ASSERT(allocator);
++        VmaFreeString(allocator->GetAllocationCallbacks(), pStatsString);
++    }
++}
++
++#endif // VMA_STATS_STRING_ENABLED
++
++/*
++This function is not protected by any mutex because it just reads immutable data.
++*/
++VMA_CALL_PRE VkResult VMA_CALL_POST vmaFindMemoryTypeIndex(
++    VmaAllocator allocator,
++    uint32_t memoryTypeBits,
++    const VmaAllocationCreateInfo* pAllocationCreateInfo,
++    uint32_t* pMemoryTypeIndex)
++{
++    VMA_ASSERT(allocator != VK_NULL_HANDLE);
++    VMA_ASSERT(pAllocationCreateInfo != VMA_NULL);
++    VMA_ASSERT(pMemoryTypeIndex != VMA_NULL);
++
++    return allocator->FindMemoryTypeIndex(memoryTypeBits, pAllocationCreateInfo, UINT32_MAX, pMemoryTypeIndex);
++}
++
++VMA_CALL_PRE VkResult VMA_CALL_POST vmaFindMemoryTypeIndexForBufferInfo(
++    VmaAllocator allocator,
++    const VkBufferCreateInfo* pBufferCreateInfo,
++    const VmaAllocationCreateInfo* pAllocationCreateInfo,
++    uint32_t* pMemoryTypeIndex)
++{
++    VMA_ASSERT(allocator != VK_NULL_HANDLE);
++    VMA_ASSERT(pBufferCreateInfo != VMA_NULL);
++    VMA_ASSERT(pAllocationCreateInfo != VMA_NULL);
++    VMA_ASSERT(pMemoryTypeIndex != VMA_NULL);
++
++    const VkDevice hDev = allocator->m_hDevice;
++    const VmaVulkanFunctions* funcs = &allocator->GetVulkanFunctions();
++    VkResult res;
++
++#if VMA_VULKAN_VERSION >= 1003000
++    if(funcs->vkGetDeviceBufferMemoryRequirements)
++    {
++        // Can query straight from VkBufferCreateInfo :)
++        VkDeviceBufferMemoryRequirements devBufMemReq = {VK_STRUCTURE_TYPE_DEVICE_BUFFER_MEMORY_REQUIREMENTS};
++        devBufMemReq.pCreateInfo = pBufferCreateInfo;
++
++        VkMemoryRequirements2 memReq = {VK_STRUCTURE_TYPE_MEMORY_REQUIREMENTS_2};
++        (*funcs->vkGetDeviceBufferMemoryRequirements)(hDev, &devBufMemReq, &memReq);
++
++        res = allocator->FindMemoryTypeIndex(
++            memReq.memoryRequirements.memoryTypeBits, pAllocationCreateInfo, pBufferCreateInfo->usage, pMemoryTypeIndex);
++    }
++    else
++#endif // #if VMA_VULKAN_VERSION >= 1003000
++    {
++        // Must create a dummy buffer to query :(
++        VkBuffer hBuffer = VK_NULL_HANDLE;
++        res = funcs->vkCreateBuffer(
++            hDev, pBufferCreateInfo, allocator->GetAllocationCallbacks(), &hBuffer);
++        if(res == VK_SUCCESS)
++        {
++            VkMemoryRequirements memReq = {};
++            funcs->vkGetBufferMemoryRequirements(hDev, hBuffer, &memReq);
++
++            res = allocator->FindMemoryTypeIndex(
++                memReq.memoryTypeBits, pAllocationCreateInfo, pBufferCreateInfo->usage, pMemoryTypeIndex);
++
++            funcs->vkDestroyBuffer(
++                hDev, hBuffer, allocator->GetAllocationCallbacks());
++        }
++    }
++    return res;
++}
++
++VMA_CALL_PRE VkResult VMA_CALL_POST vmaFindMemoryTypeIndexForImageInfo(
++    VmaAllocator allocator,
++    const VkImageCreateInfo* pImageCreateInfo,
++    const VmaAllocationCreateInfo* pAllocationCreateInfo,
++    uint32_t* pMemoryTypeIndex)
++{
++    VMA_ASSERT(allocator != VK_NULL_HANDLE);
++    VMA_ASSERT(pImageCreateInfo != VMA_NULL);
++    VMA_ASSERT(pAllocationCreateInfo != VMA_NULL);
++    VMA_ASSERT(pMemoryTypeIndex != VMA_NULL);
++
++    const VkDevice hDev = allocator->m_hDevice;
++    const VmaVulkanFunctions* funcs = &allocator->GetVulkanFunctions();
++    VkResult res;
++
++#if VMA_VULKAN_VERSION >= 1003000
++    if(funcs->vkGetDeviceImageMemoryRequirements)
++    {
++        // Can query straight from VkImageCreateInfo :)
++        VkDeviceImageMemoryRequirements devImgMemReq = {VK_STRUCTURE_TYPE_DEVICE_IMAGE_MEMORY_REQUIREMENTS};
++        devImgMemReq.pCreateInfo = pImageCreateInfo;
++        VMA_ASSERT(pImageCreateInfo->tiling != VK_IMAGE_TILING_DRM_FORMAT_MODIFIER_EXT_COPY && (pImageCreateInfo->flags & VK_IMAGE_CREATE_DISJOINT_BIT_COPY) == 0 &&
++            "Cannot use this VkImageCreateInfo with vmaFindMemoryTypeIndexForImageInfo as I don't know what to pass as VkDeviceImageMemoryRequirements::planeAspect.");
++
++        VkMemoryRequirements2 memReq = {VK_STRUCTURE_TYPE_MEMORY_REQUIREMENTS_2};
++        (*funcs->vkGetDeviceImageMemoryRequirements)(hDev, &devImgMemReq, &memReq);
++
++        res = allocator->FindMemoryTypeIndex(
++            memReq.memoryRequirements.memoryTypeBits, pAllocationCreateInfo, pImageCreateInfo->usage, pMemoryTypeIndex);
++    }
++    else
++#endif // #if VMA_VULKAN_VERSION >= 1003000
++    {
++        // Must create a dummy image to query :(
++        VkImage hImage = VK_NULL_HANDLE;
++        res = funcs->vkCreateImage(
++            hDev, pImageCreateInfo, allocator->GetAllocationCallbacks(), &hImage);
++        if(res == VK_SUCCESS)
++        {
++            VkMemoryRequirements memReq = {};
++            funcs->vkGetImageMemoryRequirements(hDev, hImage, &memReq);
++
++            res = allocator->FindMemoryTypeIndex(
++                memReq.memoryTypeBits, pAllocationCreateInfo, pImageCreateInfo->usage, pMemoryTypeIndex);
++
++            funcs->vkDestroyImage(
++                hDev, hImage, allocator->GetAllocationCallbacks());
++        }
++    }
++    return res;
++}
++
++VMA_CALL_PRE VkResult VMA_CALL_POST vmaCreatePool(
++    VmaAllocator allocator,
++    const VmaPoolCreateInfo* pCreateInfo,
++    VmaPool* pPool)
++{
++    VMA_ASSERT(allocator && pCreateInfo && pPool);
++
++    VMA_DEBUG_LOG("vmaCreatePool");
++
++    VMA_DEBUG_GLOBAL_MUTEX_LOCK
++
++    return allocator->CreatePool(pCreateInfo, pPool);
++}
++
++VMA_CALL_PRE void VMA_CALL_POST vmaDestroyPool(
++    VmaAllocator allocator,
++    VmaPool pool)
++{
++    VMA_ASSERT(allocator);
++
++    if(pool == VK_NULL_HANDLE)
++    {
++        return;
++    }
++
++    VMA_DEBUG_LOG("vmaDestroyPool");
++
++    VMA_DEBUG_GLOBAL_MUTEX_LOCK
++
++    allocator->DestroyPool(pool);
++}
++
++VMA_CALL_PRE void VMA_CALL_POST vmaGetPoolStatistics(
++    VmaAllocator allocator,
++    VmaPool pool,
++    VmaStatistics* pPoolStats)
++{
++    VMA_ASSERT(allocator && pool && pPoolStats);
++
++    VMA_DEBUG_GLOBAL_MUTEX_LOCK
++
++    allocator->GetPoolStatistics(pool, pPoolStats);
++}
++
++VMA_CALL_PRE void VMA_CALL_POST vmaCalculatePoolStatistics(
++    VmaAllocator allocator,
++    VmaPool pool,
++    VmaDetailedStatistics* pPoolStats)
++{
++    VMA_ASSERT(allocator && pool && pPoolStats);
++
++    VMA_DEBUG_GLOBAL_MUTEX_LOCK
++
++    allocator->CalculatePoolStatistics(pool, pPoolStats);
++}
++
++VMA_CALL_PRE VkResult VMA_CALL_POST vmaCheckPoolCorruption(VmaAllocator allocator, VmaPool pool)
++{
++    VMA_ASSERT(allocator && pool);
++
++    VMA_DEBUG_GLOBAL_MUTEX_LOCK
++
++    VMA_DEBUG_LOG("vmaCheckPoolCorruption");
++
++    return allocator->CheckPoolCorruption(pool);
++}
++
++VMA_CALL_PRE void VMA_CALL_POST vmaGetPoolName(
++    VmaAllocator allocator,
++    VmaPool pool,
++    const char** ppName)
++{
++    VMA_ASSERT(allocator && pool && ppName);
++
++    VMA_DEBUG_LOG("vmaGetPoolName");
++
++    VMA_DEBUG_GLOBAL_MUTEX_LOCK
++
++    *ppName = pool->GetName();
++}
++
++VMA_CALL_PRE void VMA_CALL_POST vmaSetPoolName(
++    VmaAllocator allocator,
++    VmaPool pool,
++    const char* pName)
++{
++    VMA_ASSERT(allocator && pool);
++
++    VMA_DEBUG_LOG("vmaSetPoolName");
++
++    VMA_DEBUG_GLOBAL_MUTEX_LOCK
++
++    pool->SetName(pName);
++}
++
++VMA_CALL_PRE VkResult VMA_CALL_POST vmaAllocateMemory(
++    VmaAllocator allocator,
++    const VkMemoryRequirements* pVkMemoryRequirements,
++    const VmaAllocationCreateInfo* pCreateInfo,
++    VmaAllocation* pAllocation,
++    VmaAllocationInfo* pAllocationInfo)
++{
++    VMA_ASSERT(allocator && pVkMemoryRequirements && pCreateInfo && pAllocation);
++
++    VMA_DEBUG_LOG("vmaAllocateMemory");
++
++    VMA_DEBUG_GLOBAL_MUTEX_LOCK
++
++    VkResult result = allocator->AllocateMemory(
++        *pVkMemoryRequirements,
++        false, // requiresDedicatedAllocation
++        false, // prefersDedicatedAllocation
++        VK_NULL_HANDLE, // dedicatedBuffer
++        VK_NULL_HANDLE, // dedicatedImage
++        UINT32_MAX, // dedicatedBufferImageUsage
++        *pCreateInfo,
++        VMA_SUBALLOCATION_TYPE_UNKNOWN,
++        1, // allocationCount
++        pAllocation);
++
++    if(pAllocationInfo != VMA_NULL && result == VK_SUCCESS)
++    {
++        allocator->GetAllocationInfo(*pAllocation, pAllocationInfo);
++    }
++
++    return result;
++}
++
++VMA_CALL_PRE VkResult VMA_CALL_POST vmaAllocateMemoryPages(
++    VmaAllocator allocator,
++    const VkMemoryRequirements* pVkMemoryRequirements,
++    const VmaAllocationCreateInfo* pCreateInfo,
++    size_t allocationCount,
++    VmaAllocation* pAllocations,
++    VmaAllocationInfo* pAllocationInfo)
++{
++    if(allocationCount == 0)
++    {
++        return VK_SUCCESS;
++    }
++
++    VMA_ASSERT(allocator && pVkMemoryRequirements && pCreateInfo && pAllocations);
++
++    VMA_DEBUG_LOG("vmaAllocateMemoryPages");
++
++    VMA_DEBUG_GLOBAL_MUTEX_LOCK
++
++    VkResult result = allocator->AllocateMemory(
++        *pVkMemoryRequirements,
++        false, // requiresDedicatedAllocation
++        false, // prefersDedicatedAllocation
++        VK_NULL_HANDLE, // dedicatedBuffer
++        VK_NULL_HANDLE, // dedicatedImage
++        UINT32_MAX, // dedicatedBufferImageUsage
++        *pCreateInfo,
++        VMA_SUBALLOCATION_TYPE_UNKNOWN,
++        allocationCount,
++        pAllocations);
++
++    if(pAllocationInfo != VMA_NULL && result == VK_SUCCESS)
++    {
++        for(size_t i = 0; i < allocationCount; ++i)
++        {
++            allocator->GetAllocationInfo(pAllocations[i], pAllocationInfo + i);
++        }
++    }
++
++    return result;
++}
++
++VMA_CALL_PRE VkResult VMA_CALL_POST vmaAllocateMemoryForBuffer(
++    VmaAllocator allocator,
++    VkBuffer buffer,
++    const VmaAllocationCreateInfo* pCreateInfo,
++    VmaAllocation* pAllocation,
++    VmaAllocationInfo* pAllocationInfo)
++{
++    VMA_ASSERT(allocator && buffer != VK_NULL_HANDLE && pCreateInfo && pAllocation);
++
++    VMA_DEBUG_LOG("vmaAllocateMemoryForBuffer");
++
++    VMA_DEBUG_GLOBAL_MUTEX_LOCK
++
++    VkMemoryRequirements vkMemReq = {};
++    bool requiresDedicatedAllocation = false;
++    bool prefersDedicatedAllocation = false;
++    allocator->GetBufferMemoryRequirements(buffer, vkMemReq,
++        requiresDedicatedAllocation,
++        prefersDedicatedAllocation);
++
++    VkResult result = allocator->AllocateMemory(
++        vkMemReq,
++        requiresDedicatedAllocation,
++        prefersDedicatedAllocation,
++        buffer, // dedicatedBuffer
++        VK_NULL_HANDLE, // dedicatedImage
++        UINT32_MAX, // dedicatedBufferImageUsage
++        *pCreateInfo,
++        VMA_SUBALLOCATION_TYPE_BUFFER,
++        1, // allocationCount
++        pAllocation);
++
++    if(pAllocationInfo && result == VK_SUCCESS)
++    {
++        allocator->GetAllocationInfo(*pAllocation, pAllocationInfo);
++    }
++
++    return result;
++}
++
++VMA_CALL_PRE VkResult VMA_CALL_POST vmaAllocateMemoryForImage(
++    VmaAllocator allocator,
++    VkImage image,
++    const VmaAllocationCreateInfo* pCreateInfo,
++    VmaAllocation* pAllocation,
++    VmaAllocationInfo* pAllocationInfo)
++{
++    VMA_ASSERT(allocator && image != VK_NULL_HANDLE && pCreateInfo && pAllocation);
++
++    VMA_DEBUG_LOG("vmaAllocateMemoryForImage");
++
++    VMA_DEBUG_GLOBAL_MUTEX_LOCK
++
++    VkMemoryRequirements vkMemReq = {};
++    bool requiresDedicatedAllocation = false;
++    bool prefersDedicatedAllocation  = false;
++    allocator->GetImageMemoryRequirements(image, vkMemReq,
++        requiresDedicatedAllocation, prefersDedicatedAllocation);
++
++    VkResult result = allocator->AllocateMemory(
++        vkMemReq,
++        requiresDedicatedAllocation,
++        prefersDedicatedAllocation,
++        VK_NULL_HANDLE, // dedicatedBuffer
++        image, // dedicatedImage
++        UINT32_MAX, // dedicatedBufferImageUsage
++        *pCreateInfo,
++        VMA_SUBALLOCATION_TYPE_IMAGE_UNKNOWN,
++        1, // allocationCount
++        pAllocation);
++
++    if(pAllocationInfo && result == VK_SUCCESS)
++    {
++        allocator->GetAllocationInfo(*pAllocation, pAllocationInfo);
++    }
++
++    return result;
++}
++
++VMA_CALL_PRE void VMA_CALL_POST vmaFreeMemory(
++    VmaAllocator allocator,
++    VmaAllocation allocation)
++{
++    VMA_ASSERT(allocator);
++
++    if(allocation == VK_NULL_HANDLE)
++    {
++        return;
++    }
++
++    VMA_DEBUG_LOG("vmaFreeMemory");
++
++    VMA_DEBUG_GLOBAL_MUTEX_LOCK
++
++    allocator->FreeMemory(
++        1, // allocationCount
++        &allocation);
++}
++
++VMA_CALL_PRE void VMA_CALL_POST vmaFreeMemoryPages(
++    VmaAllocator allocator,
++    size_t allocationCount,
++    const VmaAllocation* pAllocations)
++{
++    if(allocationCount == 0)
++    {
++        return;
++    }
++
++    VMA_ASSERT(allocator);
++
++    VMA_DEBUG_LOG("vmaFreeMemoryPages");
++
++    VMA_DEBUG_GLOBAL_MUTEX_LOCK
++
++    allocator->FreeMemory(allocationCount, pAllocations);
++}
++
++VMA_CALL_PRE void VMA_CALL_POST vmaGetAllocationInfo(
++    VmaAllocator allocator,
++    VmaAllocation allocation,
++    VmaAllocationInfo* pAllocationInfo)
++{
++    VMA_ASSERT(allocator && allocation && pAllocationInfo);
++
++    VMA_DEBUG_GLOBAL_MUTEX_LOCK
++
++    allocator->GetAllocationInfo(allocation, pAllocationInfo);
++}
++
++VMA_CALL_PRE void VMA_CALL_POST vmaSetAllocationUserData(
++    VmaAllocator allocator,
++    VmaAllocation allocation,
++    void* pUserData)
++{
++    VMA_ASSERT(allocator && allocation);
++
++    VMA_DEBUG_GLOBAL_MUTEX_LOCK
++
++    allocation->SetUserData(allocator, pUserData);
++}
++
++VMA_CALL_PRE void VMA_CALL_POST vmaSetAllocationName(
++    VmaAllocator VMA_NOT_NULL allocator,
++    VmaAllocation VMA_NOT_NULL allocation,
++    const char* VMA_NULLABLE pName)
++{
++    allocation->SetName(allocator, pName);
++}
++
++VMA_CALL_PRE void VMA_CALL_POST vmaGetAllocationMemoryProperties(
++    VmaAllocator VMA_NOT_NULL allocator,
++    VmaAllocation VMA_NOT_NULL allocation,
++    VkMemoryPropertyFlags* VMA_NOT_NULL pFlags)
++{
++    VMA_ASSERT(allocator && allocation && pFlags);
++    const uint32_t memTypeIndex = allocation->GetMemoryTypeIndex();
++    *pFlags = allocator->m_MemProps.memoryTypes[memTypeIndex].propertyFlags;
++}
++
++VMA_CALL_PRE VkResult VMA_CALL_POST vmaMapMemory(
++    VmaAllocator allocator,
++    VmaAllocation allocation,
++    void** ppData)
++{
++    VMA_ASSERT(allocator && allocation && ppData);
++
++    VMA_DEBUG_GLOBAL_MUTEX_LOCK
++
++    return allocator->Map(allocation, ppData);
++}
++
++VMA_CALL_PRE void VMA_CALL_POST vmaUnmapMemory(
++    VmaAllocator allocator,
++    VmaAllocation allocation)
++{
++    VMA_ASSERT(allocator && allocation);
++
++    VMA_DEBUG_GLOBAL_MUTEX_LOCK
++
++    allocator->Unmap(allocation);
++}
++
++VMA_CALL_PRE VkResult VMA_CALL_POST vmaFlushAllocation(
++    VmaAllocator allocator,
++    VmaAllocation allocation,
++    VkDeviceSize offset,
++    VkDeviceSize size)
++{
++    VMA_ASSERT(allocator && allocation);
++
++    VMA_DEBUG_LOG("vmaFlushAllocation");
++
++    VMA_DEBUG_GLOBAL_MUTEX_LOCK
++
++    const VkResult res = allocator->FlushOrInvalidateAllocation(allocation, offset, size, VMA_CACHE_FLUSH);
++
++    return res;
++}
++
++VMA_CALL_PRE VkResult VMA_CALL_POST vmaInvalidateAllocation(
++    VmaAllocator allocator,
++    VmaAllocation allocation,
++    VkDeviceSize offset,
++    VkDeviceSize size)
++{
++    VMA_ASSERT(allocator && allocation);
++
++    VMA_DEBUG_LOG("vmaInvalidateAllocation");
++
++    VMA_DEBUG_GLOBAL_MUTEX_LOCK
++
++    const VkResult res = allocator->FlushOrInvalidateAllocation(allocation, offset, size, VMA_CACHE_INVALIDATE);
++
++    return res;
++}
++
++VMA_CALL_PRE VkResult VMA_CALL_POST vmaFlushAllocations(
++    VmaAllocator allocator,
++    uint32_t allocationCount,
++    const VmaAllocation* allocations,
++    const VkDeviceSize* offsets,
++    const VkDeviceSize* sizes)
++{
++    VMA_ASSERT(allocator);
++
++    if(allocationCount == 0)
++    {
++        return VK_SUCCESS;
++    }
++
++    VMA_ASSERT(allocations);
++
++    VMA_DEBUG_LOG("vmaFlushAllocations");
++
++    VMA_DEBUG_GLOBAL_MUTEX_LOCK
++
++    const VkResult res = allocator->FlushOrInvalidateAllocations(allocationCount, allocations, offsets, sizes, VMA_CACHE_FLUSH);
++
++    return res;
++}
++
++VMA_CALL_PRE VkResult VMA_CALL_POST vmaInvalidateAllocations(
++    VmaAllocator allocator,
++    uint32_t allocationCount,
++    const VmaAllocation* allocations,
++    const VkDeviceSize* offsets,
++    const VkDeviceSize* sizes)
++{
++    VMA_ASSERT(allocator);
++
++    if(allocationCount == 0)
++    {
++        return VK_SUCCESS;
++    }
++
++    VMA_ASSERT(allocations);
++
++    VMA_DEBUG_LOG("vmaInvalidateAllocations");
++
++    VMA_DEBUG_GLOBAL_MUTEX_LOCK
++
++    const VkResult res = allocator->FlushOrInvalidateAllocations(allocationCount, allocations, offsets, sizes, VMA_CACHE_INVALIDATE);
++
++    return res;
++}
++
++VMA_CALL_PRE VkResult VMA_CALL_POST vmaCheckCorruption(
++    VmaAllocator allocator,
++    uint32_t memoryTypeBits)
++{
++    VMA_ASSERT(allocator);
++
++    VMA_DEBUG_LOG("vmaCheckCorruption");
++
++    VMA_DEBUG_GLOBAL_MUTEX_LOCK
++
++    return allocator->CheckCorruption(memoryTypeBits);
++}
++
++VMA_CALL_PRE VkResult VMA_CALL_POST vmaBeginDefragmentation(
++    VmaAllocator allocator,
++    const VmaDefragmentationInfo* pInfo,
++    VmaDefragmentationContext* pContext)
++{
++    VMA_ASSERT(allocator && pInfo && pContext);
++
++    VMA_DEBUG_LOG("vmaBeginDefragmentation");
++
++    if (pInfo->pool != VMA_NULL)
++    {
++        // Check if run on supported algorithms
++        if (pInfo->pool->m_BlockVector.GetAlgorithm() & VMA_POOL_CREATE_LINEAR_ALGORITHM_BIT)
++            return VK_ERROR_FEATURE_NOT_PRESENT;
++    }
++
++    VMA_DEBUG_GLOBAL_MUTEX_LOCK
++
++    *pContext = vma_new(allocator, VmaDefragmentationContext_T)(allocator, *pInfo);
++    return VK_SUCCESS;
++}
++
++VMA_CALL_PRE void VMA_CALL_POST vmaEndDefragmentation(
++    VmaAllocator allocator,
++    VmaDefragmentationContext context,
++    VmaDefragmentationStats* pStats)
++{
++    VMA_ASSERT(allocator && context);
++
++    VMA_DEBUG_LOG("vmaEndDefragmentation");
++
++    VMA_DEBUG_GLOBAL_MUTEX_LOCK
++
++    if (pStats)
++        context->GetStats(*pStats);
++    vma_delete(allocator, context);
++}
++
++VMA_CALL_PRE VkResult VMA_CALL_POST vmaBeginDefragmentationPass(
++    VmaAllocator VMA_NOT_NULL allocator,
++    VmaDefragmentationContext VMA_NOT_NULL context,
++    VmaDefragmentationPassMoveInfo* VMA_NOT_NULL pPassInfo)
++{
++    VMA_ASSERT(context && pPassInfo);
++
++    VMA_DEBUG_LOG("vmaBeginDefragmentationPass");
++
++    VMA_DEBUG_GLOBAL_MUTEX_LOCK
++
++    return context->DefragmentPassBegin(*pPassInfo);
++}
++
++VMA_CALL_PRE VkResult VMA_CALL_POST vmaEndDefragmentationPass(
++    VmaAllocator VMA_NOT_NULL allocator,
++    VmaDefragmentationContext VMA_NOT_NULL context,
++    VmaDefragmentationPassMoveInfo* VMA_NOT_NULL pPassInfo)
++{
++    VMA_ASSERT(context && pPassInfo);
++
++    VMA_DEBUG_LOG("vmaEndDefragmentationPass");
++
++    VMA_DEBUG_GLOBAL_MUTEX_LOCK
++
++    return context->DefragmentPassEnd(*pPassInfo);
++}
++
++VMA_CALL_PRE VkResult VMA_CALL_POST vmaBindBufferMemory(
++    VmaAllocator allocator,
++    VmaAllocation allocation,
++    VkBuffer buffer)
++{
++    VMA_ASSERT(allocator && allocation && buffer);
++
++    VMA_DEBUG_LOG("vmaBindBufferMemory");
++
++    VMA_DEBUG_GLOBAL_MUTEX_LOCK
++
++    return allocator->BindBufferMemory(allocation, 0, buffer, VMA_NULL);
++}
++
++VMA_CALL_PRE VkResult VMA_CALL_POST vmaBindBufferMemory2(
++    VmaAllocator allocator,
++    VmaAllocation allocation,
++    VkDeviceSize allocationLocalOffset,
++    VkBuffer buffer,
++    const void* pNext)
++{
++    VMA_ASSERT(allocator && allocation && buffer);
++
++    VMA_DEBUG_LOG("vmaBindBufferMemory2");
++
++    VMA_DEBUG_GLOBAL_MUTEX_LOCK
++
++    return allocator->BindBufferMemory(allocation, allocationLocalOffset, buffer, pNext);
++}
++
++VMA_CALL_PRE VkResult VMA_CALL_POST vmaBindImageMemory(
++    VmaAllocator allocator,
++    VmaAllocation allocation,
++    VkImage image)
++{
++    VMA_ASSERT(allocator && allocation && image);
++
++    VMA_DEBUG_LOG("vmaBindImageMemory");
++
++    VMA_DEBUG_GLOBAL_MUTEX_LOCK
++
++    return allocator->BindImageMemory(allocation, 0, image, VMA_NULL);
++}
++
++VMA_CALL_PRE VkResult VMA_CALL_POST vmaBindImageMemory2(
++    VmaAllocator allocator,
++    VmaAllocation allocation,
++    VkDeviceSize allocationLocalOffset,
++    VkImage image,
++    const void* pNext)
++{
++    VMA_ASSERT(allocator && allocation && image);
++
++    VMA_DEBUG_LOG("vmaBindImageMemory2");
++
++    VMA_DEBUG_GLOBAL_MUTEX_LOCK
++
++        return allocator->BindImageMemory(allocation, allocationLocalOffset, image, pNext);
++}
++
++VMA_CALL_PRE VkResult VMA_CALL_POST vmaCreateBuffer(
++    VmaAllocator allocator,
++    const VkBufferCreateInfo* pBufferCreateInfo,
++    const VmaAllocationCreateInfo* pAllocationCreateInfo,
++    VkBuffer* pBuffer,
++    VmaAllocation* pAllocation,
++    VmaAllocationInfo* pAllocationInfo)
++{
++    VMA_ASSERT(allocator && pBufferCreateInfo && pAllocationCreateInfo && pBuffer && pAllocation);
++
++    if(pBufferCreateInfo->size == 0)
++    {
++        return VK_ERROR_INITIALIZATION_FAILED;
++    }
++    if((pBufferCreateInfo->usage & VK_BUFFER_USAGE_SHADER_DEVICE_ADDRESS_BIT_COPY) != 0 &&
++        !allocator->m_UseKhrBufferDeviceAddress)
++    {
++        VMA_ASSERT(0 && "Creating a buffer with VK_BUFFER_USAGE_SHADER_DEVICE_ADDRESS_BIT is not valid if VMA_ALLOCATOR_CREATE_BUFFER_DEVICE_ADDRESS_BIT was not used.");
++        return VK_ERROR_INITIALIZATION_FAILED;
++    }
++
++    VMA_DEBUG_LOG("vmaCreateBuffer");
++
++    VMA_DEBUG_GLOBAL_MUTEX_LOCK
++
++    *pBuffer = VK_NULL_HANDLE;
++    *pAllocation = VK_NULL_HANDLE;
++
++    // 1. Create VkBuffer.
++    VkResult res = (*allocator->GetVulkanFunctions().vkCreateBuffer)(
++        allocator->m_hDevice,
++        pBufferCreateInfo,
++        allocator->GetAllocationCallbacks(),
++        pBuffer);
++    if(res >= 0)
++    {
++        // 2. vkGetBufferMemoryRequirements.
++        VkMemoryRequirements vkMemReq = {};
++        bool requiresDedicatedAllocation = false;
++        bool prefersDedicatedAllocation  = false;
++        allocator->GetBufferMemoryRequirements(*pBuffer, vkMemReq,
++            requiresDedicatedAllocation, prefersDedicatedAllocation);
++
++        // 3. Allocate memory using allocator.
++        res = allocator->AllocateMemory(
++            vkMemReq,
++            requiresDedicatedAllocation,
++            prefersDedicatedAllocation,
++            *pBuffer, // dedicatedBuffer
++            VK_NULL_HANDLE, // dedicatedImage
++            pBufferCreateInfo->usage, // dedicatedBufferImageUsage
++            *pAllocationCreateInfo,
++            VMA_SUBALLOCATION_TYPE_BUFFER,
++            1, // allocationCount
++            pAllocation);
++
++        if(res >= 0)
++        {
++            // 3. Bind buffer with memory.
++            if((pAllocationCreateInfo->flags & VMA_ALLOCATION_CREATE_DONT_BIND_BIT) == 0)
++            {
++                res = allocator->BindBufferMemory(*pAllocation, 0, *pBuffer, VMA_NULL);
++            }
++            if(res >= 0)
++            {
++                // All steps succeeded.
++                #if VMA_STATS_STRING_ENABLED
++                    (*pAllocation)->InitBufferImageUsage(pBufferCreateInfo->usage);
++                #endif
++                if(pAllocationInfo != VMA_NULL)
++                {
++                    allocator->GetAllocationInfo(*pAllocation, pAllocationInfo);
++                }
++
++                return VK_SUCCESS;
++            }
++            allocator->FreeMemory(
++                1, // allocationCount
++                pAllocation);
++            *pAllocation = VK_NULL_HANDLE;
++            (*allocator->GetVulkanFunctions().vkDestroyBuffer)(allocator->m_hDevice, *pBuffer, allocator->GetAllocationCallbacks());
++            *pBuffer = VK_NULL_HANDLE;
++            return res;
++        }
++        (*allocator->GetVulkanFunctions().vkDestroyBuffer)(allocator->m_hDevice, *pBuffer, allocator->GetAllocationCallbacks());
++        *pBuffer = VK_NULL_HANDLE;
++        return res;
++    }
++    return res;
++}
++
++VMA_CALL_PRE VkResult VMA_CALL_POST vmaCreateBufferWithAlignment(
++    VmaAllocator allocator,
++    const VkBufferCreateInfo* pBufferCreateInfo,
++    const VmaAllocationCreateInfo* pAllocationCreateInfo,
++    VkDeviceSize minAlignment,
++    VkBuffer* pBuffer,
++    VmaAllocation* pAllocation,
++    VmaAllocationInfo* pAllocationInfo)
++{
++    VMA_ASSERT(allocator && pBufferCreateInfo && pAllocationCreateInfo && VmaIsPow2(minAlignment) && pBuffer && pAllocation);
++
++    if(pBufferCreateInfo->size == 0)
++    {
++        return VK_ERROR_INITIALIZATION_FAILED;
++    }
++    if((pBufferCreateInfo->usage & VK_BUFFER_USAGE_SHADER_DEVICE_ADDRESS_BIT_COPY) != 0 &&
++        !allocator->m_UseKhrBufferDeviceAddress)
++    {
++        VMA_ASSERT(0 && "Creating a buffer with VK_BUFFER_USAGE_SHADER_DEVICE_ADDRESS_BIT is not valid if VMA_ALLOCATOR_CREATE_BUFFER_DEVICE_ADDRESS_BIT was not used.");
++        return VK_ERROR_INITIALIZATION_FAILED;
++    }
++
++    VMA_DEBUG_LOG("vmaCreateBufferWithAlignment");
++
++    VMA_DEBUG_GLOBAL_MUTEX_LOCK
++
++    *pBuffer = VK_NULL_HANDLE;
++    *pAllocation = VK_NULL_HANDLE;
++
++    // 1. Create VkBuffer.
++    VkResult res = (*allocator->GetVulkanFunctions().vkCreateBuffer)(
++        allocator->m_hDevice,
++        pBufferCreateInfo,
++        allocator->GetAllocationCallbacks(),
++        pBuffer);
++    if(res >= 0)
++    {
++        // 2. vkGetBufferMemoryRequirements.
++        VkMemoryRequirements vkMemReq = {};
++        bool requiresDedicatedAllocation = false;
++        bool prefersDedicatedAllocation  = false;
++        allocator->GetBufferMemoryRequirements(*pBuffer, vkMemReq,
++            requiresDedicatedAllocation, prefersDedicatedAllocation);
++
++        // 2a. Include minAlignment
++        vkMemReq.alignment = VMA_MAX(vkMemReq.alignment, minAlignment);
++
++        // 3. Allocate memory using allocator.
++        res = allocator->AllocateMemory(
++            vkMemReq,
++            requiresDedicatedAllocation,
++            prefersDedicatedAllocation,
++            *pBuffer, // dedicatedBuffer
++            VK_NULL_HANDLE, // dedicatedImage
++            pBufferCreateInfo->usage, // dedicatedBufferImageUsage
++            *pAllocationCreateInfo,
++            VMA_SUBALLOCATION_TYPE_BUFFER,
++            1, // allocationCount
++            pAllocation);
++
++        if(res >= 0)
++        {
++            // 3. Bind buffer with memory.
++            if((pAllocationCreateInfo->flags & VMA_ALLOCATION_CREATE_DONT_BIND_BIT) == 0)
++            {
++                res = allocator->BindBufferMemory(*pAllocation, 0, *pBuffer, VMA_NULL);
++            }
++            if(res >= 0)
++            {
++                // All steps succeeded.
++                #if VMA_STATS_STRING_ENABLED
++                    (*pAllocation)->InitBufferImageUsage(pBufferCreateInfo->usage);
++                #endif
++                if(pAllocationInfo != VMA_NULL)
++                {
++                    allocator->GetAllocationInfo(*pAllocation, pAllocationInfo);
++                }
++
++                return VK_SUCCESS;
++            }
++            allocator->FreeMemory(
++                1, // allocationCount
++                pAllocation);
++            *pAllocation = VK_NULL_HANDLE;
++            (*allocator->GetVulkanFunctions().vkDestroyBuffer)(allocator->m_hDevice, *pBuffer, allocator->GetAllocationCallbacks());
++            *pBuffer = VK_NULL_HANDLE;
++            return res;
++        }
++        (*allocator->GetVulkanFunctions().vkDestroyBuffer)(allocator->m_hDevice, *pBuffer, allocator->GetAllocationCallbacks());
++        *pBuffer = VK_NULL_HANDLE;
++        return res;
++    }
++    return res;
++}
++
++VMA_CALL_PRE VkResult VMA_CALL_POST vmaCreateAliasingBuffer(
++    VmaAllocator VMA_NOT_NULL allocator,
++    VmaAllocation VMA_NOT_NULL allocation,
++    const VkBufferCreateInfo* VMA_NOT_NULL pBufferCreateInfo,
++    VkBuffer VMA_NULLABLE_NON_DISPATCHABLE* VMA_NOT_NULL pBuffer)
++{
++    VMA_ASSERT(allocator && pBufferCreateInfo && pBuffer && allocation);
++
++    VMA_DEBUG_LOG("vmaCreateAliasingBuffer");
++
++    *pBuffer = VK_NULL_HANDLE;
++
++    if (pBufferCreateInfo->size == 0)
++    {
++        return VK_ERROR_INITIALIZATION_FAILED;
++    }
++    if ((pBufferCreateInfo->usage & VK_BUFFER_USAGE_SHADER_DEVICE_ADDRESS_BIT_COPY) != 0 &&
++        !allocator->m_UseKhrBufferDeviceAddress)
++    {
++        VMA_ASSERT(0 && "Creating a buffer with VK_BUFFER_USAGE_SHADER_DEVICE_ADDRESS_BIT is not valid if VMA_ALLOCATOR_CREATE_BUFFER_DEVICE_ADDRESS_BIT was not used.");
++        return VK_ERROR_INITIALIZATION_FAILED;
++    }
++
++    VMA_DEBUG_GLOBAL_MUTEX_LOCK
++
++    // 1. Create VkBuffer.
++    VkResult res = (*allocator->GetVulkanFunctions().vkCreateBuffer)(
++        allocator->m_hDevice,
++        pBufferCreateInfo,
++        allocator->GetAllocationCallbacks(),
++        pBuffer);
++    if (res >= 0)
++    {
++        // 2. Bind buffer with memory.
++        res = allocator->BindBufferMemory(allocation, 0, *pBuffer, VMA_NULL);
++        if (res >= 0)
++        {
++            return VK_SUCCESS;
++        }
++        (*allocator->GetVulkanFunctions().vkDestroyBuffer)(allocator->m_hDevice, *pBuffer, allocator->GetAllocationCallbacks());
++    }
++    return res;
++}
++
++VMA_CALL_PRE void VMA_CALL_POST vmaDestroyBuffer(
++    VmaAllocator allocator,
++    VkBuffer buffer,
++    VmaAllocation allocation)
++{
++    VMA_ASSERT(allocator);
++
++    if(buffer == VK_NULL_HANDLE && allocation == VK_NULL_HANDLE)
++    {
++        return;
++    }
++
++    VMA_DEBUG_LOG("vmaDestroyBuffer");
++
++    VMA_DEBUG_GLOBAL_MUTEX_LOCK
++
++    if(buffer != VK_NULL_HANDLE)
++    {
++        (*allocator->GetVulkanFunctions().vkDestroyBuffer)(allocator->m_hDevice, buffer, allocator->GetAllocationCallbacks());
++    }
++
++    if(allocation != VK_NULL_HANDLE)
++    {
++        allocator->FreeMemory(
++            1, // allocationCount
++            &allocation);
++    }
++}
++
++VMA_CALL_PRE VkResult VMA_CALL_POST vmaCreateImage(
++    VmaAllocator allocator,
++    const VkImageCreateInfo* pImageCreateInfo,
++    const VmaAllocationCreateInfo* pAllocationCreateInfo,
++    VkImage* pImage,
++    VmaAllocation* pAllocation,
++    VmaAllocationInfo* pAllocationInfo)
++{
++    VMA_ASSERT(allocator && pImageCreateInfo && pAllocationCreateInfo && pImage && pAllocation);
++
++    if(pImageCreateInfo->extent.width == 0 ||
++        pImageCreateInfo->extent.height == 0 ||
++        pImageCreateInfo->extent.depth == 0 ||
++        pImageCreateInfo->mipLevels == 0 ||
++        pImageCreateInfo->arrayLayers == 0)
++    {
++        return VK_ERROR_INITIALIZATION_FAILED;
++    }
++
++    VMA_DEBUG_LOG("vmaCreateImage");
++
++    VMA_DEBUG_GLOBAL_MUTEX_LOCK
++
++    *pImage = VK_NULL_HANDLE;
++    *pAllocation = VK_NULL_HANDLE;
++
++    // 1. Create VkImage.
++    VkResult res = (*allocator->GetVulkanFunctions().vkCreateImage)(
++        allocator->m_hDevice,
++        pImageCreateInfo,
++        allocator->GetAllocationCallbacks(),
++        pImage);
++    if(res >= 0)
++    {
++        VmaSuballocationType suballocType = pImageCreateInfo->tiling == VK_IMAGE_TILING_OPTIMAL ?
++            VMA_SUBALLOCATION_TYPE_IMAGE_OPTIMAL :
++            VMA_SUBALLOCATION_TYPE_IMAGE_LINEAR;
++
++        // 2. Allocate memory using allocator.
++        VkMemoryRequirements vkMemReq = {};
++        bool requiresDedicatedAllocation = false;
++        bool prefersDedicatedAllocation  = false;
++        allocator->GetImageMemoryRequirements(*pImage, vkMemReq,
++            requiresDedicatedAllocation, prefersDedicatedAllocation);
++
++        res = allocator->AllocateMemory(
++            vkMemReq,
++            requiresDedicatedAllocation,
++            prefersDedicatedAllocation,
++            VK_NULL_HANDLE, // dedicatedBuffer
++            *pImage, // dedicatedImage
++            pImageCreateInfo->usage, // dedicatedBufferImageUsage
++            *pAllocationCreateInfo,
++            suballocType,
++            1, // allocationCount
++            pAllocation);
++
++        if(res >= 0)
++        {
++            // 3. Bind image with memory.
++            if((pAllocationCreateInfo->flags & VMA_ALLOCATION_CREATE_DONT_BIND_BIT) == 0)
++            {
++                res = allocator->BindImageMemory(*pAllocation, 0, *pImage, VMA_NULL);
++            }
++            if(res >= 0)
++            {
++                // All steps succeeded.
++                #if VMA_STATS_STRING_ENABLED
++                    (*pAllocation)->InitBufferImageUsage(pImageCreateInfo->usage);
++                #endif
++                if(pAllocationInfo != VMA_NULL)
++                {
++                    allocator->GetAllocationInfo(*pAllocation, pAllocationInfo);
++                }
++
++                return VK_SUCCESS;
++            }
++            allocator->FreeMemory(
++                1, // allocationCount
++                pAllocation);
++            *pAllocation = VK_NULL_HANDLE;
++            (*allocator->GetVulkanFunctions().vkDestroyImage)(allocator->m_hDevice, *pImage, allocator->GetAllocationCallbacks());
++            *pImage = VK_NULL_HANDLE;
++            return res;
++        }
++        (*allocator->GetVulkanFunctions().vkDestroyImage)(allocator->m_hDevice, *pImage, allocator->GetAllocationCallbacks());
++        *pImage = VK_NULL_HANDLE;
++        return res;
++    }
++    return res;
++}
++
++VMA_CALL_PRE VkResult VMA_CALL_POST vmaCreateAliasingImage(
++    VmaAllocator VMA_NOT_NULL allocator,
++    VmaAllocation VMA_NOT_NULL allocation,
++    const VkImageCreateInfo* VMA_NOT_NULL pImageCreateInfo,
++    VkImage VMA_NULLABLE_NON_DISPATCHABLE* VMA_NOT_NULL pImage)
++{
++    VMA_ASSERT(allocator && pImageCreateInfo && pImage && allocation);
++
++    *pImage = VK_NULL_HANDLE;
++
++    VMA_DEBUG_LOG("vmaCreateImage");
++
++    if (pImageCreateInfo->extent.width == 0 ||
++        pImageCreateInfo->extent.height == 0 ||
++        pImageCreateInfo->extent.depth == 0 ||
++        pImageCreateInfo->mipLevels == 0 ||
++        pImageCreateInfo->arrayLayers == 0)
++    {
++        return VK_ERROR_INITIALIZATION_FAILED;
++    }
++
++    VMA_DEBUG_GLOBAL_MUTEX_LOCK
++
++    // 1. Create VkImage.
++    VkResult res = (*allocator->GetVulkanFunctions().vkCreateImage)(
++        allocator->m_hDevice,
++        pImageCreateInfo,
++        allocator->GetAllocationCallbacks(),
++        pImage);
++    if (res >= 0)
++    {
++        // 2. Bind image with memory.
++        res = allocator->BindImageMemory(allocation, 0, *pImage, VMA_NULL);
++        if (res >= 0)
++        {
++            return VK_SUCCESS;
++        }
++        (*allocator->GetVulkanFunctions().vkDestroyImage)(allocator->m_hDevice, *pImage, allocator->GetAllocationCallbacks());
++    }
++    return res;
++}
++
++VMA_CALL_PRE void VMA_CALL_POST vmaDestroyImage(
++    VmaAllocator VMA_NOT_NULL allocator,
++    VkImage VMA_NULLABLE_NON_DISPATCHABLE image,
++    VmaAllocation VMA_NULLABLE allocation)
++{
++    VMA_ASSERT(allocator);
++
++    if(image == VK_NULL_HANDLE && allocation == VK_NULL_HANDLE)
++    {
++        return;
++    }
++
++    VMA_DEBUG_LOG("vmaDestroyImage");
++
++    VMA_DEBUG_GLOBAL_MUTEX_LOCK
++
++    if(image != VK_NULL_HANDLE)
++    {
++        (*allocator->GetVulkanFunctions().vkDestroyImage)(allocator->m_hDevice, image, allocator->GetAllocationCallbacks());
++    }
++    if(allocation != VK_NULL_HANDLE)
++    {
++        allocator->FreeMemory(
++            1, // allocationCount
++            &allocation);
++    }
++}
++
++VMA_CALL_PRE VkResult VMA_CALL_POST vmaCreateVirtualBlock(
++    const VmaVirtualBlockCreateInfo* VMA_NOT_NULL pCreateInfo,
++    VmaVirtualBlock VMA_NULLABLE * VMA_NOT_NULL pVirtualBlock)
++{
++    VMA_ASSERT(pCreateInfo && pVirtualBlock);
++    VMA_ASSERT(pCreateInfo->size > 0);
++    VMA_DEBUG_LOG("vmaCreateVirtualBlock");
++    VMA_DEBUG_GLOBAL_MUTEX_LOCK;
++    *pVirtualBlock = vma_new(pCreateInfo->pAllocationCallbacks, VmaVirtualBlock_T)(*pCreateInfo);
++    VkResult res = (*pVirtualBlock)->Init();
++    if(res < 0)
++    {
++        vma_delete(pCreateInfo->pAllocationCallbacks, *pVirtualBlock);
++        *pVirtualBlock = VK_NULL_HANDLE;
++    }
++    return res;
++}
++
++VMA_CALL_PRE void VMA_CALL_POST vmaDestroyVirtualBlock(VmaVirtualBlock VMA_NULLABLE virtualBlock)
++{
++    if(virtualBlock != VK_NULL_HANDLE)
++    {
++        VMA_DEBUG_LOG("vmaDestroyVirtualBlock");
++        VMA_DEBUG_GLOBAL_MUTEX_LOCK;
++        VkAllocationCallbacks allocationCallbacks = virtualBlock->m_AllocationCallbacks; // Have to copy the callbacks when destroying.
++        vma_delete(&allocationCallbacks, virtualBlock);
++    }
++}
++
++VMA_CALL_PRE VkBool32 VMA_CALL_POST vmaIsVirtualBlockEmpty(VmaVirtualBlock VMA_NOT_NULL virtualBlock)
++{
++    VMA_ASSERT(virtualBlock != VK_NULL_HANDLE);
++    VMA_DEBUG_LOG("vmaIsVirtualBlockEmpty");
++    VMA_DEBUG_GLOBAL_MUTEX_LOCK;
++    return virtualBlock->IsEmpty() ? VK_TRUE : VK_FALSE;
++}
++
++VMA_CALL_PRE void VMA_CALL_POST vmaGetVirtualAllocationInfo(VmaVirtualBlock VMA_NOT_NULL virtualBlock,
++    VmaVirtualAllocation VMA_NOT_NULL_NON_DISPATCHABLE allocation, VmaVirtualAllocationInfo* VMA_NOT_NULL pVirtualAllocInfo)
++{
++    VMA_ASSERT(virtualBlock != VK_NULL_HANDLE && pVirtualAllocInfo != VMA_NULL);
++    VMA_DEBUG_LOG("vmaGetVirtualAllocationInfo");
++    VMA_DEBUG_GLOBAL_MUTEX_LOCK;
++    virtualBlock->GetAllocationInfo(allocation, *pVirtualAllocInfo);
++}
++
++VMA_CALL_PRE VkResult VMA_CALL_POST vmaVirtualAllocate(VmaVirtualBlock VMA_NOT_NULL virtualBlock,
++    const VmaVirtualAllocationCreateInfo* VMA_NOT_NULL pCreateInfo, VmaVirtualAllocation VMA_NULLABLE_NON_DISPATCHABLE* VMA_NOT_NULL pAllocation,
++    VkDeviceSize* VMA_NULLABLE pOffset)
++{
++    VMA_ASSERT(virtualBlock != VK_NULL_HANDLE && pCreateInfo != VMA_NULL && pAllocation != VMA_NULL);
++    VMA_DEBUG_LOG("vmaVirtualAllocate");
++    VMA_DEBUG_GLOBAL_MUTEX_LOCK;
++    return virtualBlock->Allocate(*pCreateInfo, *pAllocation, pOffset);
++}
++
++VMA_CALL_PRE void VMA_CALL_POST vmaVirtualFree(VmaVirtualBlock VMA_NOT_NULL virtualBlock, VmaVirtualAllocation VMA_NULLABLE_NON_DISPATCHABLE allocation)
++{
++    if(allocation != VK_NULL_HANDLE)
++    {
++        VMA_ASSERT(virtualBlock != VK_NULL_HANDLE);
++        VMA_DEBUG_LOG("vmaVirtualFree");
++        VMA_DEBUG_GLOBAL_MUTEX_LOCK;
++        virtualBlock->Free(allocation);
++    }
++}
++
++VMA_CALL_PRE void VMA_CALL_POST vmaClearVirtualBlock(VmaVirtualBlock VMA_NOT_NULL virtualBlock)
++{
++    VMA_ASSERT(virtualBlock != VK_NULL_HANDLE);
++    VMA_DEBUG_LOG("vmaClearVirtualBlock");
++    VMA_DEBUG_GLOBAL_MUTEX_LOCK;
++    virtualBlock->Clear();
++}
++
++VMA_CALL_PRE void VMA_CALL_POST vmaSetVirtualAllocationUserData(VmaVirtualBlock VMA_NOT_NULL virtualBlock,
++    VmaVirtualAllocation VMA_NOT_NULL_NON_DISPATCHABLE allocation, void* VMA_NULLABLE pUserData)
++{
++    VMA_ASSERT(virtualBlock != VK_NULL_HANDLE);
++    VMA_DEBUG_LOG("vmaSetVirtualAllocationUserData");
++    VMA_DEBUG_GLOBAL_MUTEX_LOCK;
++    virtualBlock->SetAllocationUserData(allocation, pUserData);
++}
++
++VMA_CALL_PRE void VMA_CALL_POST vmaGetVirtualBlockStatistics(VmaVirtualBlock VMA_NOT_NULL virtualBlock,
++    VmaStatistics* VMA_NOT_NULL pStats)
++{
++    VMA_ASSERT(virtualBlock != VK_NULL_HANDLE && pStats != VMA_NULL);
++    VMA_DEBUG_LOG("vmaGetVirtualBlockStatistics");
++    VMA_DEBUG_GLOBAL_MUTEX_LOCK;
++    virtualBlock->GetStatistics(*pStats);
++}
++
++VMA_CALL_PRE void VMA_CALL_POST vmaCalculateVirtualBlockStatistics(VmaVirtualBlock VMA_NOT_NULL virtualBlock,
++    VmaDetailedStatistics* VMA_NOT_NULL pStats)
++{
++    VMA_ASSERT(virtualBlock != VK_NULL_HANDLE && pStats != VMA_NULL);
++    VMA_DEBUG_LOG("vmaCalculateVirtualBlockStatistics");
++    VMA_DEBUG_GLOBAL_MUTEX_LOCK;
++    virtualBlock->CalculateDetailedStatistics(*pStats);
++}
++
++#if VMA_STATS_STRING_ENABLED
++
++VMA_CALL_PRE void VMA_CALL_POST vmaBuildVirtualBlockStatsString(VmaVirtualBlock VMA_NOT_NULL virtualBlock,
++    char* VMA_NULLABLE * VMA_NOT_NULL ppStatsString, VkBool32 detailedMap)
++{
++    VMA_ASSERT(virtualBlock != VK_NULL_HANDLE && ppStatsString != VMA_NULL);
++    VMA_DEBUG_GLOBAL_MUTEX_LOCK;
++    const VkAllocationCallbacks* allocationCallbacks = virtualBlock->GetAllocationCallbacks();
++    VmaStringBuilder sb(allocationCallbacks);
++    virtualBlock->BuildStatsString(detailedMap != VK_FALSE, sb);
++    *ppStatsString = VmaCreateStringCopy(allocationCallbacks, sb.GetData(), sb.GetLength());
++}
++
++VMA_CALL_PRE void VMA_CALL_POST vmaFreeVirtualBlockStatsString(VmaVirtualBlock VMA_NOT_NULL virtualBlock,
++    char* VMA_NULLABLE pStatsString)
++{
++    if(pStatsString != VMA_NULL)
++    {
++        VMA_ASSERT(virtualBlock != VK_NULL_HANDLE);
++        VMA_DEBUG_GLOBAL_MUTEX_LOCK;
++        VmaFreeString(virtualBlock->GetAllocationCallbacks(), pStatsString);
++    }
++}
++#endif // VMA_STATS_STRING_ENABLED
++#endif // _VMA_PUBLIC_INTERFACE
++#endif // VMA_IMPLEMENTATION
++
++/**
++\page quick_start Quick start
++
++\section quick_start_project_setup Project setup
++
++Vulkan Memory Allocator comes in form of a "stb-style" single header file.
++You don't need to build it as a separate library project.
++You can add this file directly to your project and submit it to code repository next to your other source files.
++
++"Single header" doesn't mean that everything is contained in C/C++ declarations,
++like it tends to be in case of inline functions or C++ templates.
++It means that implementation is bundled with interface in a single file and needs to be extracted using preprocessor macro.
++If you don't do it properly, you will get linker errors.
++
++To do it properly:
++
++-# Include "vk_mem_alloc.h" file in each CPP file where you want to use the library.
++   This includes declarations of all members of the library.
++-# In exactly one CPP file define following macro before this include.
++   It enables also internal definitions.
++
++\code
++#define VMA_IMPLEMENTATION
++#include "vk_mem_alloc.h"
++\endcode
++
++It may be a good idea to create dedicated CPP file just for this purpose.
++
++This library includes header `<vulkan/vulkan.h>`, which in turn
++includes `<windows.h>` on Windows. If you need some specific macros defined
++before including these headers (like `WIN32_LEAN_AND_MEAN` or
++`WINVER` for Windows, `VK_USE_PLATFORM_WIN32_KHR` for Vulkan), you must define
++them before every `#include` of this library.
++
++This library is written in C++, but has C-compatible interface.
++Thus you can include and use vk_mem_alloc.h in C or C++ code, but full
++implementation with `VMA_IMPLEMENTATION` macro must be compiled as C++, NOT as C.
++Some features of C++14 used. STL containers, RTTI, or C++ exceptions are not used.
++
++
++\section quick_start_initialization Initialization
++
++At program startup:
++
++-# Initialize Vulkan to have `VkPhysicalDevice`, `VkDevice` and `VkInstance` object.
++-# Fill VmaAllocatorCreateInfo structure and create #VmaAllocator object by
++   calling vmaCreateAllocator().
++
++Only members `physicalDevice`, `device`, `instance` are required.
++However, you should inform the library which Vulkan version do you use by setting
++VmaAllocatorCreateInfo::vulkanApiVersion and which extensions did you enable
++by setting VmaAllocatorCreateInfo::flags (like #VMA_ALLOCATOR_CREATE_BUFFER_DEVICE_ADDRESS_BIT for VK_KHR_buffer_device_address).
++Otherwise, VMA would use only features of Vulkan 1.0 core with no extensions.
++
++You may need to configure importing Vulkan functions. There are 3 ways to do this:
++
++-# **If you link with Vulkan static library** (e.g. "vulkan-1.lib" on Windows):
++   - You don't need to do anything.
++   - VMA will use these, as macro `VMA_STATIC_VULKAN_FUNCTIONS` is defined to 1 by default.
++-# **If you want VMA to fetch pointers to Vulkan functions dynamically** using `vkGetInstanceProcAddr`,
++   `vkGetDeviceProcAddr` (this is the option presented in the example below):
++   - Define `VMA_STATIC_VULKAN_FUNCTIONS` to 0, `VMA_DYNAMIC_VULKAN_FUNCTIONS` to 1.
++   - Provide pointers to these two functions via VmaVulkanFunctions::vkGetInstanceProcAddr,
++     VmaVulkanFunctions::vkGetDeviceProcAddr.
++   - The library will fetch pointers to all other functions it needs internally.
++-# **If you fetch pointers to all Vulkan functions in a custom way**, e.g. using some loader like
++   [Volk](https://github.com/zeux/volk):
++   - Define `VMA_STATIC_VULKAN_FUNCTIONS` and `VMA_DYNAMIC_VULKAN_FUNCTIONS` to 0.
++   - Pass these pointers via structure #VmaVulkanFunctions.
++
++\code
++VmaVulkanFunctions vulkanFunctions = {};
++vulkanFunctions.vkGetInstanceProcAddr = &vkGetInstanceProcAddr;
++vulkanFunctions.vkGetDeviceProcAddr = &vkGetDeviceProcAddr;
++
++VmaAllocatorCreateInfo allocatorCreateInfo = {};
++allocatorCreateInfo.vulkanApiVersion = VK_API_VERSION_1_2;
++allocatorCreateInfo.physicalDevice = physicalDevice;
++allocatorCreateInfo.device = device;
++allocatorCreateInfo.instance = instance;
++allocatorCreateInfo.pVulkanFunctions = &vulkanFunctions;
++
++VmaAllocator allocator;
++vmaCreateAllocator(&allocatorCreateInfo, &allocator);
++\endcode
++
++
++\section quick_start_resource_allocation Resource allocation
++
++When you want to create a buffer or image:
++
++-# Fill `VkBufferCreateInfo` / `VkImageCreateInfo` structure.
++-# Fill VmaAllocationCreateInfo structure.
++-# Call vmaCreateBuffer() / vmaCreateImage() to get `VkBuffer`/`VkImage` with memory
++   already allocated and bound to it, plus #VmaAllocation objects that represents its underlying memory.
++
++\code
++VkBufferCreateInfo bufferInfo = { VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO };
++bufferInfo.size = 65536;
++bufferInfo.usage = VK_BUFFER_USAGE_VERTEX_BUFFER_BIT | VK_BUFFER_USAGE_TRANSFER_DST_BIT;
++
++VmaAllocationCreateInfo allocInfo = {};
++allocInfo.usage = VMA_MEMORY_USAGE_AUTO;
++
++VkBuffer buffer;
++VmaAllocation allocation;
++vmaCreateBuffer(allocator, &bufferInfo, &allocInfo, &buffer, &allocation, nullptr);
++\endcode
++
++Don't forget to destroy your objects when no longer needed:
++
++\code
++vmaDestroyBuffer(allocator, buffer, allocation);
++vmaDestroyAllocator(allocator);
++\endcode
++
++
++\page choosing_memory_type Choosing memory type
++
++Physical devices in Vulkan support various combinations of memory heaps and
++types. Help with choosing correct and optimal memory type for your specific
++resource is one of the key features of this library. You can use it by filling
++appropriate members of VmaAllocationCreateInfo structure, as described below.
++You can also combine multiple methods.
++
++-# If you just want to find memory type index that meets your requirements, you
++   can use function: vmaFindMemoryTypeIndexForBufferInfo(),
++   vmaFindMemoryTypeIndexForImageInfo(), vmaFindMemoryTypeIndex().
++-# If you want to allocate a region of device memory without association with any
++   specific image or buffer, you can use function vmaAllocateMemory(). Usage of
++   this function is not recommended and usually not needed.
++   vmaAllocateMemoryPages() function is also provided for creating multiple allocations at once,
++   which may be useful for sparse binding.
++-# If you already have a buffer or an image created, you want to allocate memory
++   for it and then you will bind it yourself, you can use function
++   vmaAllocateMemoryForBuffer(), vmaAllocateMemoryForImage().
++   For binding you should use functions: vmaBindBufferMemory(), vmaBindImageMemory()
++   or their extended versions: vmaBindBufferMemory2(), vmaBindImageMemory2().
++-# **This is the easiest and recommended way to use this library:**
++   If you want to create a buffer or an image, allocate memory for it and bind
++   them together, all in one call, you can use function vmaCreateBuffer(),
++   vmaCreateImage().
++
++When using 3. or 4., the library internally queries Vulkan for memory types
++supported for that buffer or image (function `vkGetBufferMemoryRequirements()`)
++and uses only one of these types.
++
++If no memory type can be found that meets all the requirements, these functions
++return `VK_ERROR_FEATURE_NOT_PRESENT`.
++
++You can leave VmaAllocationCreateInfo structure completely filled with zeros.
++It means no requirements are specified for memory type.
++It is valid, although not very useful.
++
++\section choosing_memory_type_usage Usage
++
++The easiest way to specify memory requirements is to fill member
++VmaAllocationCreateInfo::usage using one of the values of enum #VmaMemoryUsage.
++It defines high level, common usage types.
++Since version 3 of the library, it is recommended to use #VMA_MEMORY_USAGE_AUTO to let it select best memory type for your resource automatically.
++
++For example, if you want to create a uniform buffer that will be filled using
++transfer only once or infrequently and then used for rendering every frame as a uniform buffer, you can
++do it using following code. The buffer will most likely end up in a memory type with
++`VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT` to be fast to access by the GPU device.
++
++\code
++VkBufferCreateInfo bufferInfo = { VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO };
++bufferInfo.size = 65536;
++bufferInfo.usage = VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT | VK_BUFFER_USAGE_TRANSFER_DST_BIT;
++
++VmaAllocationCreateInfo allocInfo = {};
++allocInfo.usage = VMA_MEMORY_USAGE_AUTO;
++
++VkBuffer buffer;
++VmaAllocation allocation;
++vmaCreateBuffer(allocator, &bufferInfo, &allocInfo, &buffer, &allocation, nullptr);
++\endcode
++
++If you have a preference for putting the resource in GPU (device) memory or CPU (host) memory
++on systems with discrete graphics card that have the memories separate, you can use
++#VMA_MEMORY_USAGE_AUTO_PREFER_DEVICE or #VMA_MEMORY_USAGE_AUTO_PREFER_HOST.
++
++When using `VMA_MEMORY_USAGE_AUTO*` while you want to map the allocated memory,
++you also need to specify one of the host access flags:
++#VMA_ALLOCATION_CREATE_HOST_ACCESS_SEQUENTIAL_WRITE_BIT or #VMA_ALLOCATION_CREATE_HOST_ACCESS_RANDOM_BIT.
++This will help the library decide about preferred memory type to ensure it has `VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT`
++so you can map it.
++
++For example, a staging buffer that will be filled via mapped pointer and then
++used as a source of transfer to the buffer decribed previously can be created like this.
++It will likely and up in a memory type that is `HOST_VISIBLE` and `HOST_COHERENT`
++but not `HOST_CACHED` (meaning uncached, write-combined) and not `DEVICE_LOCAL` (meaning system RAM).
++
++\code
++VkBufferCreateInfo stagingBufferInfo = { VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO };
++stagingBufferInfo.size = 65536;
++stagingBufferInfo.usage = VK_BUFFER_USAGE_TRANSFER_SRC_BIT;
++
++VmaAllocationCreateInfo stagingAllocInfo = {};
++stagingAllocInfo.usage = VMA_MEMORY_USAGE_AUTO;
++stagingAllocInfo.flags = VMA_ALLOCATION_CREATE_HOST_ACCESS_SEQUENTIAL_WRITE_BIT;
++
++VkBuffer stagingBuffer;
++VmaAllocation stagingAllocation;
++vmaCreateBuffer(allocator, &stagingBufferInfo, &stagingAllocInfo, &stagingBuffer, &stagingAllocation, nullptr);
++\endcode
++
++For more examples of creating different kinds of resources, see chapter \ref usage_patterns.
++
++Usage values `VMA_MEMORY_USAGE_AUTO*` are legal to use only when the library knows
++about the resource being created by having `VkBufferCreateInfo` / `VkImageCreateInfo` passed,
++so they work with functions like: vmaCreateBuffer(), vmaCreateImage(), vmaFindMemoryTypeIndexForBufferInfo() etc.
++If you allocate raw memory using function vmaAllocateMemory(), you have to use other means of selecting
++memory type, as decribed below.
++
++\note
++Old usage values (`VMA_MEMORY_USAGE_GPU_ONLY`, `VMA_MEMORY_USAGE_CPU_ONLY`,
++`VMA_MEMORY_USAGE_CPU_TO_GPU`, `VMA_MEMORY_USAGE_GPU_TO_CPU`, `VMA_MEMORY_USAGE_CPU_COPY`)
++are still available and work same way as in previous versions of the library
++for backward compatibility, but they are not recommended.
++
++\section choosing_memory_type_required_preferred_flags Required and preferred flags
++
++You can specify more detailed requirements by filling members
++VmaAllocationCreateInfo::requiredFlags and VmaAllocationCreateInfo::preferredFlags
++with a combination of bits from enum `VkMemoryPropertyFlags`. For example,
++if you want to create a buffer that will be persistently mapped on host (so it
++must be `HOST_VISIBLE`) and preferably will also be `HOST_COHERENT` and `HOST_CACHED`,
++use following code:
++
++\code
++VmaAllocationCreateInfo allocInfo = {};
++allocInfo.requiredFlags = VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT;
++allocInfo.preferredFlags = VK_MEMORY_PROPERTY_HOST_COHERENT_BIT | VK_MEMORY_PROPERTY_HOST_CACHED_BIT;
++allocInfo.flags = VMA_ALLOCATION_CREATE_HOST_ACCESS_RANDOM_BIT | VMA_ALLOCATION_CREATE_MAPPED_BIT;
++
++VkBuffer buffer;
++VmaAllocation allocation;
++vmaCreateBuffer(allocator, &bufferInfo, &allocInfo, &buffer, &allocation, nullptr);
++\endcode
++
++A memory type is chosen that has all the required flags and as many preferred
++flags set as possible.
++
++Value passed in VmaAllocationCreateInfo::usage is internally converted to a set of required and preferred flags,
++plus some extra "magic" (heuristics).
++
++\section choosing_memory_type_explicit_memory_types Explicit memory types
++
++If you inspected memory types available on the physical device and you have
++a preference for memory types that you want to use, you can fill member
++VmaAllocationCreateInfo::memoryTypeBits. It is a bit mask, where each bit set
++means that a memory type with that index is allowed to be used for the
++allocation. Special value 0, just like `UINT32_MAX`, means there are no
++restrictions to memory type index.
++
++Please note that this member is NOT just a memory type index.
++Still you can use it to choose just one, specific memory type.
++For example, if you already determined that your buffer should be created in
++memory type 2, use following code:
++
++\code
++uint32_t memoryTypeIndex = 2;
++
++VmaAllocationCreateInfo allocInfo = {};
++allocInfo.memoryTypeBits = 1u << memoryTypeIndex;
++
++VkBuffer buffer;
++VmaAllocation allocation;
++vmaCreateBuffer(allocator, &bufferInfo, &allocInfo, &buffer, &allocation, nullptr);
++\endcode
++
++
++\section choosing_memory_type_custom_memory_pools Custom memory pools
++
++If you allocate from custom memory pool, all the ways of specifying memory
++requirements described above are not applicable and the aforementioned members
++of VmaAllocationCreateInfo structure are ignored. Memory type is selected
++explicitly when creating the pool and then used to make all the allocations from
++that pool. For further details, see \ref custom_memory_pools.
++
++\section choosing_memory_type_dedicated_allocations Dedicated allocations
++
++Memory for allocations is reserved out of larger block of `VkDeviceMemory`
++allocated from Vulkan internally. That is the main feature of this whole library.
++You can still request a separate memory block to be created for an allocation,
++just like you would do in a trivial solution without using any allocator.
++In that case, a buffer or image is always bound to that memory at offset 0.
++This is called a "dedicated allocation".
++You can explicitly request it by using flag #VMA_ALLOCATION_CREATE_DEDICATED_MEMORY_BIT.
++The library can also internally decide to use dedicated allocation in some cases, e.g.:
++
++- When the size of the allocation is large.
++- When [VK_KHR_dedicated_allocation](@ref vk_khr_dedicated_allocation) extension is enabled
++  and it reports that dedicated allocation is required or recommended for the resource.
++- When allocation of next big memory block fails due to not enough device memory,
++  but allocation with the exact requested size succeeds.
++
++
++\page memory_mapping Memory mapping
++
++To "map memory" in Vulkan means to obtain a CPU pointer to `VkDeviceMemory`,
++to be able to read from it or write to it in CPU code.
++Mapping is possible only of memory allocated from a memory type that has
++`VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT` flag.
++Functions `vkMapMemory()`, `vkUnmapMemory()` are designed for this purpose.
++You can use them directly with memory allocated by this library,
++but it is not recommended because of following issue:
++Mapping the same `VkDeviceMemory` block multiple times is illegal - only one mapping at a time is allowed.
++This includes mapping disjoint regions. Mapping is not reference-counted internally by Vulkan.
++Because of this, Vulkan Memory Allocator provides following facilities:
++
++\note If you want to be able to map an allocation, you need to specify one of the flags
++#VMA_ALLOCATION_CREATE_HOST_ACCESS_SEQUENTIAL_WRITE_BIT or #VMA_ALLOCATION_CREATE_HOST_ACCESS_RANDOM_BIT
++in VmaAllocationCreateInfo::flags. These flags are required for an allocation to be mappable
++when using #VMA_MEMORY_USAGE_AUTO or other `VMA_MEMORY_USAGE_AUTO*` enum values.
++For other usage values they are ignored and every such allocation made in `HOST_VISIBLE` memory type is mappable,
++but they can still be used for consistency.
++
++\section memory_mapping_mapping_functions Mapping functions
++
++The library provides following functions for mapping of a specific #VmaAllocation: vmaMapMemory(), vmaUnmapMemory().
++They are safer and more convenient to use than standard Vulkan functions.
++You can map an allocation multiple times simultaneously - mapping is reference-counted internally.
++You can also map different allocations simultaneously regardless of whether they use the same `VkDeviceMemory` block.
++The way it is implemented is that the library always maps entire memory block, not just region of the allocation.
++For further details, see description of vmaMapMemory() function.
++Example:
++
++\code
++// Having these objects initialized:
++struct ConstantBuffer
++{
++    ...
++};
++ConstantBuffer constantBufferData = ...
++
++VmaAllocator allocator = ...
++VkBuffer constantBuffer = ...
++VmaAllocation constantBufferAllocation = ...
++
++// You can map and fill your buffer using following code:
++
++void* mappedData;
++vmaMapMemory(allocator, constantBufferAllocation, &mappedData);
++memcpy(mappedData, &constantBufferData, sizeof(constantBufferData));
++vmaUnmapMemory(allocator, constantBufferAllocation);
++\endcode
++
++When mapping, you may see a warning from Vulkan validation layer similar to this one:
++
++<i>Mapping an image with layout VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL can result in undefined behavior if this memory is used by the device. Only GENERAL or PREINITIALIZED should be used.</i>
++
++It happens because the library maps entire `VkDeviceMemory` block, where different
++types of images and buffers may end up together, especially on GPUs with unified memory like Intel.
++You can safely ignore it if you are sure you access only memory of the intended
++object that you wanted to map.
++
++
++\section memory_mapping_persistently_mapped_memory Persistently mapped memory
++
++Kepping your memory persistently mapped is generally OK in Vulkan.
++You don't need to unmap it before using its data on the GPU.
++The library provides a special feature designed for that:
++Allocations made with #VMA_ALLOCATION_CREATE_MAPPED_BIT flag set in
++VmaAllocationCreateInfo::flags stay mapped all the time,
++so you can just access CPU pointer to it any time
++without a need to call any "map" or "unmap" function.
++Example:
++
++\code
++VkBufferCreateInfo bufCreateInfo = { VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO };
++bufCreateInfo.size = sizeof(ConstantBuffer);
++bufCreateInfo.usage = VK_BUFFER_USAGE_TRANSFER_SRC_BIT;
++
++VmaAllocationCreateInfo allocCreateInfo = {};
++allocCreateInfo.usage = VMA_MEMORY_USAGE_AUTO;
++allocCreateInfo.flags = VMA_ALLOCATION_CREATE_HOST_ACCESS_SEQUENTIAL_WRITE_BIT |
++    VMA_ALLOCATION_CREATE_MAPPED_BIT;
++
++VkBuffer buf;
++VmaAllocation alloc;
++VmaAllocationInfo allocInfo;
++vmaCreateBuffer(allocator, &bufCreateInfo, &allocCreateInfo, &buf, &alloc, &allocInfo);
++
++// Buffer is already mapped. You can access its memory.
++memcpy(allocInfo.pMappedData, &constantBufferData, sizeof(constantBufferData));
++\endcode
++
++\note #VMA_ALLOCATION_CREATE_MAPPED_BIT by itself doesn't guarantee that the allocation will end up
++in a mappable memory type.
++For this, you need to also specify #VMA_ALLOCATION_CREATE_HOST_ACCESS_SEQUENTIAL_WRITE_BIT or
++#VMA_ALLOCATION_CREATE_HOST_ACCESS_RANDOM_BIT.
++#VMA_ALLOCATION_CREATE_MAPPED_BIT only guarantees that if the memory is `HOST_VISIBLE`, the allocation will be mapped on creation.
++For an example of how to make use of this fact, see section \ref usage_patterns_advanced_data_uploading.
++
++\section memory_mapping_cache_control Cache flush and invalidate
++
++Memory in Vulkan doesn't need to be unmapped before using it on GPU,
++but unless a memory types has `VK_MEMORY_PROPERTY_HOST_COHERENT_BIT` flag set,
++you need to manually **invalidate** cache before reading of mapped pointer
++and **flush** cache after writing to mapped pointer.
++Map/unmap operations don't do that automatically.
++Vulkan provides following functions for this purpose `vkFlushMappedMemoryRanges()`,
++`vkInvalidateMappedMemoryRanges()`, but this library provides more convenient
++functions that refer to given allocation object: vmaFlushAllocation(),
++vmaInvalidateAllocation(),
++or multiple objects at once: vmaFlushAllocations(), vmaInvalidateAllocations().
++
++Regions of memory specified for flush/invalidate must be aligned to
++`VkPhysicalDeviceLimits::nonCoherentAtomSize`. This is automatically ensured by the library.
++In any memory type that is `HOST_VISIBLE` but not `HOST_COHERENT`, all allocations
++within blocks are aligned to this value, so their offsets are always multiply of
++`nonCoherentAtomSize` and two different allocations never share same "line" of this size.
++
++Also, Windows drivers from all 3 PC GPU vendors (AMD, Intel, NVIDIA)
++currently provide `HOST_COHERENT` flag on all memory types that are
++`HOST_VISIBLE`, so on PC you may not need to bother.
++
++
++\page staying_within_budget Staying within budget
++
++When developing a graphics-intensive game or program, it is important to avoid allocating
++more GPU memory than it is physically available. When the memory is over-committed,
++various bad things can happen, depending on the specific GPU, graphics driver, and
++operating system:
++
++- It may just work without any problems.
++- The application may slow down because some memory blocks are moved to system RAM
++  and the GPU has to access them through PCI Express bus.
++- A new allocation may take very long time to complete, even few seconds, and possibly
++  freeze entire system.
++- The new allocation may fail with `VK_ERROR_OUT_OF_DEVICE_MEMORY`.
++- It may even result in GPU crash (TDR), observed as `VK_ERROR_DEVICE_LOST`
++  returned somewhere later.
++
++\section staying_within_budget_querying_for_budget Querying for budget
++
++To query for current memory usage and available budget, use function vmaGetHeapBudgets().
++Returned structure #VmaBudget contains quantities expressed in bytes, per Vulkan memory heap.
++
++Please note that this function returns different information and works faster than
++vmaCalculateStatistics(). vmaGetHeapBudgets() can be called every frame or even before every
++allocation, while vmaCalculateStatistics() is intended to be used rarely,
++only to obtain statistical information, e.g. for debugging purposes.
++
++It is recommended to use <b>VK_EXT_memory_budget</b> device extension to obtain information
++about the budget from Vulkan device. VMA is able to use this extension automatically.
++When not enabled, the allocator behaves same way, but then it estimates current usage
++and available budget based on its internal information and Vulkan memory heap sizes,
++which may be less precise. In order to use this extension:
++
++1. Make sure extensions VK_EXT_memory_budget and VK_KHR_get_physical_device_properties2
++   required by it are available and enable them. Please note that the first is a device
++   extension and the second is instance extension!
++2. Use flag #VMA_ALLOCATOR_CREATE_EXT_MEMORY_BUDGET_BIT when creating #VmaAllocator object.
++3. Make sure to call vmaSetCurrentFrameIndex() every frame. Budget is queried from
++   Vulkan inside of it to avoid overhead of querying it with every allocation.
++
++\section staying_within_budget_controlling_memory_usage Controlling memory usage
++
++There are many ways in which you can try to stay within the budget.
++
++First, when making new allocation requires allocating a new memory block, the library
++tries not to exceed the budget automatically. If a block with default recommended size
++(e.g. 256 MB) would go over budget, a smaller block is allocated, possibly even
++dedicated memory for just this resource.
++
++If the size of the requested resource plus current memory usage is more than the
++budget, by default the library still tries to create it, leaving it to the Vulkan
++implementation whether the allocation succeeds or fails. You can change this behavior
++by using #VMA_ALLOCATION_CREATE_WITHIN_BUDGET_BIT flag. With it, the allocation is
++not made if it would exceed the budget or if the budget is already exceeded.
++VMA then tries to make the allocation from the next eligible Vulkan memory type.
++The all of them fail, the call then fails with `VK_ERROR_OUT_OF_DEVICE_MEMORY`.
++Example usage pattern may be to pass the #VMA_ALLOCATION_CREATE_WITHIN_BUDGET_BIT flag
++when creating resources that are not essential for the application (e.g. the texture
++of a specific object) and not to pass it when creating critically important resources
++(e.g. render targets).
++
++On AMD graphics cards there is a custom vendor extension available: <b>VK_AMD_memory_overallocation_behavior</b>
++that allows to control the behavior of the Vulkan implementation in out-of-memory cases -
++whether it should fail with an error code or still allow the allocation.
++Usage of this extension involves only passing extra structure on Vulkan device creation,
++so it is out of scope of this library.
++
++Finally, you can also use #VMA_ALLOCATION_CREATE_NEVER_ALLOCATE_BIT flag to make sure
++a new allocation is created only when it fits inside one of the existing memory blocks.
++If it would require to allocate a new block, if fails instead with `VK_ERROR_OUT_OF_DEVICE_MEMORY`.
++This also ensures that the function call is very fast because it never goes to Vulkan
++to obtain a new block.
++
++\note Creating \ref custom_memory_pools with VmaPoolCreateInfo::minBlockCount
++set to more than 0 will currently try to allocate memory blocks without checking whether they
++fit within budget.
++
++
++\page resource_aliasing Resource aliasing (overlap)
++
++New explicit graphics APIs (Vulkan and Direct3D 12), thanks to manual memory
++management, give an opportunity to alias (overlap) multiple resources in the
++same region of memory - a feature not available in the old APIs (Direct3D 11, OpenGL).
++It can be useful to save video memory, but it must be used with caution.
++
++For example, if you know the flow of your whole render frame in advance, you
++are going to use some intermediate textures or buffers only during a small range of render passes,
++and you know these ranges don't overlap in time, you can bind these resources to
++the same place in memory, even if they have completely different parameters (width, height, format etc.).
++
++![Resource aliasing (overlap)](../gfx/Aliasing.png)
++
++Such scenario is possible using VMA, but you need to create your images manually.
++Then you need to calculate parameters of an allocation to be made using formula:
++
++- allocation size = max(size of each image)
++- allocation alignment = max(alignment of each image)
++- allocation memoryTypeBits = bitwise AND(memoryTypeBits of each image)
++
++Following example shows two different images bound to the same place in memory,
++allocated to fit largest of them.
++
++\code
++// A 512x512 texture to be sampled.
++VkImageCreateInfo img1CreateInfo = { VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO };
++img1CreateInfo.imageType = VK_IMAGE_TYPE_2D;
++img1CreateInfo.extent.width = 512;
++img1CreateInfo.extent.height = 512;
++img1CreateInfo.extent.depth = 1;
++img1CreateInfo.mipLevels = 10;
++img1CreateInfo.arrayLayers = 1;
++img1CreateInfo.format = VK_FORMAT_R8G8B8A8_SRGB;
++img1CreateInfo.tiling = VK_IMAGE_TILING_OPTIMAL;
++img1CreateInfo.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
++img1CreateInfo.usage = VK_IMAGE_USAGE_TRANSFER_DST_BIT | VK_IMAGE_USAGE_SAMPLED_BIT;
++img1CreateInfo.samples = VK_SAMPLE_COUNT_1_BIT;
++
++// A full screen texture to be used as color attachment.
++VkImageCreateInfo img2CreateInfo = { VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO };
++img2CreateInfo.imageType = VK_IMAGE_TYPE_2D;
++img2CreateInfo.extent.width = 1920;
++img2CreateInfo.extent.height = 1080;
++img2CreateInfo.extent.depth = 1;
++img2CreateInfo.mipLevels = 1;
++img2CreateInfo.arrayLayers = 1;
++img2CreateInfo.format = VK_FORMAT_R8G8B8A8_UNORM;
++img2CreateInfo.tiling = VK_IMAGE_TILING_OPTIMAL;
++img2CreateInfo.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
++img2CreateInfo.usage = VK_IMAGE_USAGE_SAMPLED_BIT | VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT;
++img2CreateInfo.samples = VK_SAMPLE_COUNT_1_BIT;
++
++VkImage img1;
++res = vkCreateImage(device, &img1CreateInfo, nullptr, &img1);
++VkImage img2;
++res = vkCreateImage(device, &img2CreateInfo, nullptr, &img2);
++
++VkMemoryRequirements img1MemReq;
++vkGetImageMemoryRequirements(device, img1, &img1MemReq);
++VkMemoryRequirements img2MemReq;
++vkGetImageMemoryRequirements(device, img2, &img2MemReq);
++
++VkMemoryRequirements finalMemReq = {};
++finalMemReq.size = std::max(img1MemReq.size, img2MemReq.size);
++finalMemReq.alignment = std::max(img1MemReq.alignment, img2MemReq.alignment);
++finalMemReq.memoryTypeBits = img1MemReq.memoryTypeBits & img2MemReq.memoryTypeBits;
++// Validate if(finalMemReq.memoryTypeBits != 0)
++
++VmaAllocationCreateInfo allocCreateInfo = {};
++allocCreateInfo.preferredFlags = VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT;
++
++VmaAllocation alloc;
++res = vmaAllocateMemory(allocator, &finalMemReq, &allocCreateInfo, &alloc, nullptr);
++
++res = vmaBindImageMemory(allocator, alloc, img1);
++res = vmaBindImageMemory(allocator, alloc, img2);
++
++// You can use img1, img2 here, but not at the same time!
++
++vmaFreeMemory(allocator, alloc);
++vkDestroyImage(allocator, img2, nullptr);
++vkDestroyImage(allocator, img1, nullptr);
++\endcode
++
++Remember that using resources that alias in memory requires proper synchronization.
++You need to issue a memory barrier to make sure commands that use `img1` and `img2`
++don't overlap on GPU timeline.
++You also need to treat a resource after aliasing as uninitialized - containing garbage data.
++For example, if you use `img1` and then want to use `img2`, you need to issue
++an image memory barrier for `img2` with `oldLayout` = `VK_IMAGE_LAYOUT_UNDEFINED`.
++
++Additional considerations:
++
++- Vulkan also allows to interpret contents of memory between aliasing resources consistently in some cases.
++See chapter 11.8. "Memory Aliasing" of Vulkan specification or `VK_IMAGE_CREATE_ALIAS_BIT` flag.
++- You can create more complex layout where different images and buffers are bound
++at different offsets inside one large allocation. For example, one can imagine
++a big texture used in some render passes, aliasing with a set of many small buffers
++used between in some further passes. To bind a resource at non-zero offset in an allocation,
++use vmaBindBufferMemory2() / vmaBindImageMemory2().
++- Before allocating memory for the resources you want to alias, check `memoryTypeBits`
++returned in memory requirements of each resource to make sure the bits overlap.
++Some GPUs may expose multiple memory types suitable e.g. only for buffers or
++images with `COLOR_ATTACHMENT` usage, so the sets of memory types supported by your
++resources may be disjoint. Aliasing them is not possible in that case.
++
++
++\page custom_memory_pools Custom memory pools
++
++A memory pool contains a number of `VkDeviceMemory` blocks.
++The library automatically creates and manages default pool for each memory type available on the device.
++Default memory pool automatically grows in size.
++Size of allocated blocks is also variable and managed automatically.
++
++You can create custom pool and allocate memory out of it.
++It can be useful if you want to:
++
++- Keep certain kind of allocations separate from others.
++- Enforce particular, fixed size of Vulkan memory blocks.
++- Limit maximum amount of Vulkan memory allocated for that pool.
++- Reserve minimum or fixed amount of Vulkan memory always preallocated for that pool.
++- Use extra parameters for a set of your allocations that are available in #VmaPoolCreateInfo but not in
++  #VmaAllocationCreateInfo - e.g., custom minimum alignment, custom `pNext` chain.
++- Perform defragmentation on a specific subset of your allocations.
++
++To use custom memory pools:
++
++-# Fill VmaPoolCreateInfo structure.
++-# Call vmaCreatePool() to obtain #VmaPool handle.
++-# When making an allocation, set VmaAllocationCreateInfo::pool to this handle.
++   You don't need to specify any other parameters of this structure, like `usage`.
++
++Example:
++
++\code
++// Find memoryTypeIndex for the pool.
++VkBufferCreateInfo sampleBufCreateInfo = { VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO };
++sampleBufCreateInfo.size = 0x10000; // Doesn't matter.
++sampleBufCreateInfo.usage = VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT | VK_BUFFER_USAGE_TRANSFER_DST_BIT;
++
++VmaAllocationCreateInfo sampleAllocCreateInfo = {};
++sampleAllocCreateInfo.usage = VMA_MEMORY_USAGE_AUTO;
++
++uint32_t memTypeIndex;
++VkResult res = vmaFindMemoryTypeIndexForBufferInfo(allocator,
++    &sampleBufCreateInfo, &sampleAllocCreateInfo, &memTypeIndex);
++// Check res...
++
++// Create a pool that can have at most 2 blocks, 128 MiB each.
++VmaPoolCreateInfo poolCreateInfo = {};
++poolCreateInfo.memoryTypeIndex = memTypeIndex;
++poolCreateInfo.blockSize = 128ull * 1024 * 1024;
++poolCreateInfo.maxBlockCount = 2;
++
++VmaPool pool;
++res = vmaCreatePool(allocator, &poolCreateInfo, &pool);
++// Check res...
++
++// Allocate a buffer out of it.
++VkBufferCreateInfo bufCreateInfo = { VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO };
++bufCreateInfo.size = 1024;
++bufCreateInfo.usage = VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT | VK_BUFFER_USAGE_TRANSFER_DST_BIT;
++
++VmaAllocationCreateInfo allocCreateInfo = {};
++allocCreateInfo.pool = pool;
++
++VkBuffer buf;
++VmaAllocation alloc;
++res = vmaCreateBuffer(allocator, &bufCreateInfo, &allocCreateInfo, &buf, &alloc, nullptr);
++// Check res...
++\endcode
++
++You have to free all allocations made from this pool before destroying it.
++
++\code
++vmaDestroyBuffer(allocator, buf, alloc);
++vmaDestroyPool(allocator, pool);
++\endcode
++
++New versions of this library support creating dedicated allocations in custom pools.
++It is supported only when VmaPoolCreateInfo::blockSize = 0.
++To use this feature, set VmaAllocationCreateInfo::pool to the pointer to your custom pool and
++VmaAllocationCreateInfo::flags to #VMA_ALLOCATION_CREATE_DEDICATED_MEMORY_BIT.
++
++\note Excessive use of custom pools is a common mistake when using this library.
++Custom pools may be useful for special purposes - when you want to
++keep certain type of resources separate e.g. to reserve minimum amount of memory
++for them or limit maximum amount of memory they can occupy. For most
++resources this is not needed and so it is not recommended to create #VmaPool
++objects and allocations out of them. Allocating from the default pool is sufficient.
++
++
++\section custom_memory_pools_MemTypeIndex Choosing memory type index
++
++When creating a pool, you must explicitly specify memory type index.
++To find the one suitable for your buffers or images, you can use helper functions
++vmaFindMemoryTypeIndexForBufferInfo(), vmaFindMemoryTypeIndexForImageInfo().
++You need to provide structures with example parameters of buffers or images
++that you are going to create in that pool.
++
++\code
++VkBufferCreateInfo exampleBufCreateInfo = { VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO };
++exampleBufCreateInfo.size = 1024; // Doesn't matter
++exampleBufCreateInfo.usage = VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT | VK_BUFFER_USAGE_TRANSFER_DST_BIT;
++
++VmaAllocationCreateInfo allocCreateInfo = {};
++allocCreateInfo.usage = VMA_MEMORY_USAGE_AUTO;
++
++uint32_t memTypeIndex;
++vmaFindMemoryTypeIndexForBufferInfo(allocator, &exampleBufCreateInfo, &allocCreateInfo, &memTypeIndex);
++
++VmaPoolCreateInfo poolCreateInfo = {};
++poolCreateInfo.memoryTypeIndex = memTypeIndex;
++// ...
++\endcode
++
++When creating buffers/images allocated in that pool, provide following parameters:
++
++- `VkBufferCreateInfo`: Prefer to pass same parameters as above.
++  Otherwise you risk creating resources in a memory type that is not suitable for them, which may result in undefined behavior.
++  Using different `VK_BUFFER_USAGE_` flags may work, but you shouldn't create images in a pool intended for buffers
++  or the other way around.
++- VmaAllocationCreateInfo: You don't need to pass same parameters. Fill only `pool` member.
++  Other members are ignored anyway.
++
++\section linear_algorithm Linear allocation algorithm
++
++Each Vulkan memory block managed by this library has accompanying metadata that
++keeps track of used and unused regions. By default, the metadata structure and
++algorithm tries to find best place for new allocations among free regions to
++optimize memory usage. This way you can allocate and free objects in any order.
++
++![Default allocation algorithm](../gfx/Linear_allocator_1_algo_default.png)
++
++Sometimes there is a need to use simpler, linear allocation algorithm. You can
++create custom pool that uses such algorithm by adding flag
++#VMA_POOL_CREATE_LINEAR_ALGORITHM_BIT to VmaPoolCreateInfo::flags while creating
++#VmaPool object. Then an alternative metadata management is used. It always
++creates new allocations after last one and doesn't reuse free regions after
++allocations freed in the middle. It results in better allocation performance and
++less memory consumed by metadata.
++
++![Linear allocation algorithm](../gfx/Linear_allocator_2_algo_linear.png)
++
++With this one flag, you can create a custom pool that can be used in many ways:
++free-at-once, stack, double stack, and ring buffer. See below for details.
++You don't need to specify explicitly which of these options you are going to use - it is detected automatically.
++
++\subsection linear_algorithm_free_at_once Free-at-once
++
++In a pool that uses linear algorithm, you still need to free all the allocations
++individually, e.g. by using vmaFreeMemory() or vmaDestroyBuffer(). You can free
++them in any order. New allocations are always made after last one - free space
++in the middle is not reused. However, when you release all the allocation and
++the pool becomes empty, allocation starts from the beginning again. This way you
++can use linear algorithm to speed up creation of allocations that you are going
++to release all at once.
++
++![Free-at-once](../gfx/Linear_allocator_3_free_at_once.png)
++
++This mode is also available for pools created with VmaPoolCreateInfo::maxBlockCount
++value that allows multiple memory blocks.
++
++\subsection linear_algorithm_stack Stack
++
++When you free an allocation that was created last, its space can be reused.
++Thanks to this, if you always release allocations in the order opposite to their
++creation (LIFO - Last In First Out), you can achieve behavior of a stack.
++
++![Stack](../gfx/Linear_allocator_4_stack.png)
++
++This mode is also available for pools created with VmaPoolCreateInfo::maxBlockCount
++value that allows multiple memory blocks.
++
++\subsection linear_algorithm_double_stack Double stack
++
++The space reserved by a custom pool with linear algorithm may be used by two
++stacks:
++
++- First, default one, growing up from offset 0.
++- Second, "upper" one, growing down from the end towards lower offsets.
++
++To make allocation from the upper stack, add flag #VMA_ALLOCATION_CREATE_UPPER_ADDRESS_BIT
++to VmaAllocationCreateInfo::flags.
++
++![Double stack](../gfx/Linear_allocator_7_double_stack.png)
++
++Double stack is available only in pools with one memory block -
++VmaPoolCreateInfo::maxBlockCount must be 1. Otherwise behavior is undefined.
++
++When the two stacks' ends meet so there is not enough space between them for a
++new allocation, such allocation fails with usual
++`VK_ERROR_OUT_OF_DEVICE_MEMORY` error.
++
++\subsection linear_algorithm_ring_buffer Ring buffer
++
++When you free some allocations from the beginning and there is not enough free space
++for a new one at the end of a pool, allocator's "cursor" wraps around to the
++beginning and starts allocation there. Thanks to this, if you always release
++allocations in the same order as you created them (FIFO - First In First Out),
++you can achieve behavior of a ring buffer / queue.
++
++![Ring buffer](../gfx/Linear_allocator_5_ring_buffer.png)
++
++Ring buffer is available only in pools with one memory block -
++VmaPoolCreateInfo::maxBlockCount must be 1. Otherwise behavior is undefined.
++
++\note \ref defragmentation is not supported in custom pools created with #VMA_POOL_CREATE_LINEAR_ALGORITHM_BIT.
++
++
++\page defragmentation Defragmentation
++
++Interleaved allocations and deallocations of many objects of varying size can
++cause fragmentation over time, which can lead to a situation where the library is unable
++to find a continuous range of free memory for a new allocation despite there is
++enough free space, just scattered across many small free ranges between existing
++allocations.
++
++To mitigate this problem, you can use defragmentation feature.
++It doesn't happen automatically though and needs your cooperation,
++because VMA is a low level library that only allocates memory.
++It cannot recreate buffers and images in a new place as it doesn't remember the contents of `VkBufferCreateInfo` / `VkImageCreateInfo` structures.
++It cannot copy their contents as it doesn't record any commands to a command buffer.
++
++Example:
++
++\code
++VmaDefragmentationInfo defragInfo = {};
++defragInfo.pool = myPool;
++defragInfo.flags = VMA_DEFRAGMENTATION_FLAG_ALGORITHM_FAST_BIT;
++
++VmaDefragmentationContext defragCtx;
++VkResult res = vmaBeginDefragmentation(allocator, &defragInfo, &defragCtx);
++// Check res...
++
++for(;;)
++{
++    VmaDefragmentationPassMoveInfo pass;
++    res = vmaBeginDefragmentationPass(allocator, defragCtx, &pass);
++    if(res == VK_SUCCESS)
++        break;
++    else if(res != VK_INCOMPLETE)
++        // Handle error...
++
++    for(uint32_t i = 0; i < pass.moveCount; ++i)
++    {
++        // Inspect pass.pMoves[i].srcAllocation, identify what buffer/image it represents.
++        VmaAllocationInfo allocInfo;
++        vmaGetAllocationInfo(allocator, pMoves[i].srcAllocation, &allocInfo);
++        MyEngineResourceData* resData = (MyEngineResourceData*)allocInfo.pUserData;
++            
++        // Recreate and bind this buffer/image at: pass.pMoves[i].dstMemory, pass.pMoves[i].dstOffset.
++        VkImageCreateInfo imgCreateInfo = ...
++        VkImage newImg;
++        res = vkCreateImage(device, &imgCreateInfo, nullptr, &newImg);
++        // Check res...
++        res = vmaBindImageMemory(allocator, pMoves[i].dstTmpAllocation, newImg);
++        // Check res...
++
++        // Issue a vkCmdCopyBuffer/vkCmdCopyImage to copy its content to the new place.
++        vkCmdCopyImage(cmdBuf, resData->img, ..., newImg, ...);
++    }
++        
++    // Make sure the copy commands finished executing.
++    vkWaitForFences(...);
++
++    // Destroy old buffers/images bound with pass.pMoves[i].srcAllocation.
++    for(uint32_t i = 0; i < pass.moveCount; ++i)
++    {
++        // ...
++        vkDestroyImage(device, resData->img, nullptr);
++    }
++
++    // Update appropriate descriptors to point to the new places...
++        
++    res = vmaEndDefragmentationPass(allocator, defragCtx, &pass);
++    if(res == VK_SUCCESS)
++        break;
++    else if(res != VK_INCOMPLETE)
++        // Handle error...
++}
++
++vmaEndDefragmentation(allocator, defragCtx, nullptr);
++\endcode
++
++Although functions like vmaCreateBuffer(), vmaCreateImage(), vmaDestroyBuffer(), vmaDestroyImage()
++create/destroy an allocation and a buffer/image at once, these are just a shortcut for
++creating the resource, allocating memory, and binding them together.
++Defragmentation works on memory allocations only. You must handle the rest manually.
++Defragmentation is an iterative process that should repreat "passes" as long as related functions
++return `VK_INCOMPLETE` not `VK_SUCCESS`.
++In each pass:
++
++1. vmaBeginDefragmentationPass() function call:
++   - Calculates and returns the list of allocations to be moved in this pass.
++     Note this can be a time-consuming process.
++   - Reserves destination memory for them by creating temporary destination allocations
++     that you can query for their `VkDeviceMemory` + offset using vmaGetAllocationInfo().
++2. Inside the pass, **you should**:
++   - Inspect the returned list of allocations to be moved.
++   - Create new buffers/images and bind them at the returned destination temporary allocations.
++   - Copy data from source to destination resources if necessary.
++   - Destroy the source buffers/images, but NOT their allocations.
++3. vmaEndDefragmentationPass() function call:
++   - Frees the source memory reserved for the allocations that are moved.
++   - Modifies source #VmaAllocation objects that are moved to point to the destination reserved memory.
++   - Frees `VkDeviceMemory` blocks that became empty.
++
++Unlike in previous iterations of the defragmentation API, there is no list of "movable" allocations passed as a parameter.
++Defragmentation algorithm tries to move all suitable allocations.
++You can, however, refuse to move some of them inside a defragmentation pass, by setting
++`pass.pMoves[i].operation` to #VMA_DEFRAGMENTATION_MOVE_OPERATION_IGNORE.
++This is not recommended and may result in suboptimal packing of the allocations after defragmentation.
++If you cannot ensure any allocation can be moved, it is better to keep movable allocations separate in a custom pool.
++
++Inside a pass, for each allocation that should be moved:
++
++- You should copy its data from the source to the destination place by calling e.g. `vkCmdCopyBuffer()`, `vkCmdCopyImage()`.
++  - You need to make sure these commands finished executing before destroying the source buffers/images and before calling vmaEndDefragmentationPass().
++- If a resource doesn't contain any meaningful data, e.g. it is a transient color attachment image to be cleared,
++  filled, and used temporarily in each rendering frame, you can just recreate this image
++  without copying its data.
++- If the resource is in `HOST_VISIBLE` and `HOST_CACHED` memory, you can copy its data on the CPU
++  using `memcpy()`.
++- If you cannot move the allocation, you can set `pass.pMoves[i].operation` to #VMA_DEFRAGMENTATION_MOVE_OPERATION_IGNORE.
++  This will cancel the move.
++  - vmaEndDefragmentationPass() will then free the destination memory
++    not the source memory of the allocation, leaving it unchanged.
++- If you decide the allocation is unimportant and can be destroyed instead of moved (e.g. it wasn't used for long time),
++  you can set `pass.pMoves[i].operation` to #VMA_DEFRAGMENTATION_MOVE_OPERATION_DESTROY.
++  - vmaEndDefragmentationPass() will then free both source and destination memory, and will destroy the source #VmaAllocation object.
++
++You can defragment a specific custom pool by setting VmaDefragmentationInfo::pool
++(like in the example above) or all the default pools by setting this member to null.
++
++Defragmentation is always performed in each pool separately.
++Allocations are never moved between different Vulkan memory types.
++The size of the destination memory reserved for a moved allocation is the same as the original one.
++Alignment of an allocation as it was determined using `vkGetBufferMemoryRequirements()` etc. is also respected after defragmentation.
++Buffers/images should be recreated with the same `VkBufferCreateInfo` / `VkImageCreateInfo` parameters as the original ones.
++
++You can perform the defragmentation incrementally to limit the number of allocations and bytes to be moved
++in each pass, e.g. to call it in sync with render frames and not to experience too big hitches.
++See members: VmaDefragmentationInfo::maxBytesPerPass, VmaDefragmentationInfo::maxAllocationsPerPass.
++
++It is also safe to perform the defragmentation asynchronously to render frames and other Vulkan and VMA
++usage, possibly from multiple threads, with the exception that allocations
++returned in VmaDefragmentationPassMoveInfo::pMoves shouldn't be destroyed until the defragmentation pass is ended.
++
++<b>Mapping</b> is preserved on allocations that are moved during defragmentation.
++Whether through #VMA_ALLOCATION_CREATE_MAPPED_BIT or vmaMapMemory(), the allocations
++are mapped at their new place. Of course, pointer to the mapped data changes, so it needs to be queried
++using VmaAllocationInfo::pMappedData.
++
++\note Defragmentation is not supported in custom pools created with #VMA_POOL_CREATE_LINEAR_ALGORITHM_BIT.
++
++
++\page statistics Statistics
++
++This library contains several functions that return information about its internal state,
++especially the amount of memory allocated from Vulkan.
++
++\section statistics_numeric_statistics Numeric statistics
++
++If you need to obtain basic statistics about memory usage per heap, together with current budget,
++you can call function vmaGetHeapBudgets() and inspect structure #VmaBudget.
++This is useful to keep track of memory usage and stay withing budget
++(see also \ref staying_within_budget).
++Example:
++
++\code
++uint32_t heapIndex = ...
++
++VmaBudget budgets[VK_MAX_MEMORY_HEAPS];
++vmaGetHeapBudgets(allocator, budgets);
++
++printf("My heap currently has %u allocations taking %llu B,\n",
++    budgets[heapIndex].statistics.allocationCount,
++    budgets[heapIndex].statistics.allocationBytes);
++printf("allocated out of %u Vulkan device memory blocks taking %llu B,\n",
++    budgets[heapIndex].statistics.blockCount,
++    budgets[heapIndex].statistics.blockBytes);
++printf("Vulkan reports total usage %llu B with budget %llu B.\n",
++    budgets[heapIndex].usage,
++    budgets[heapIndex].budget);
++\endcode
++
++You can query for more detailed statistics per memory heap, type, and totals,
++including minimum and maximum allocation size and unused range size,
++by calling function vmaCalculateStatistics() and inspecting structure #VmaTotalStatistics.
++This function is slower though, as it has to traverse all the internal data structures,
++so it should be used only for debugging purposes.
++
++You can query for statistics of a custom pool using function vmaGetPoolStatistics()
++or vmaCalculatePoolStatistics().
++
++You can query for information about a specific allocation using function vmaGetAllocationInfo().
++It fill structure #VmaAllocationInfo.
++
++\section statistics_json_dump JSON dump
++
++You can dump internal state of the allocator to a string in JSON format using function vmaBuildStatsString().
++The result is guaranteed to be correct JSON.
++It uses ANSI encoding.
++Any strings provided by user (see [Allocation names](@ref allocation_names))
++are copied as-is and properly escaped for JSON, so if they use UTF-8, ISO-8859-2 or any other encoding,
++this JSON string can be treated as using this encoding.
++It must be freed using function vmaFreeStatsString().
++
++The format of this JSON string is not part of official documentation of the library,
++but it will not change in backward-incompatible way without increasing library major version number
++and appropriate mention in changelog.
++
++The JSON string contains all the data that can be obtained using vmaCalculateStatistics().
++It can also contain detailed map of allocated memory blocks and their regions -
++free and occupied by allocations.
++This allows e.g. to visualize the memory or assess fragmentation.
++
++
++\page allocation_annotation Allocation names and user data
++
++\section allocation_user_data Allocation user data
++
++You can annotate allocations with your own information, e.g. for debugging purposes.
++To do that, fill VmaAllocationCreateInfo::pUserData field when creating
++an allocation. It is an opaque `void*` pointer. You can use it e.g. as a pointer,
++some handle, index, key, ordinal number or any other value that would associate
++the allocation with your custom metadata.
++It it useful to identify appropriate data structures in your engine given #VmaAllocation,
++e.g. when doing \ref defragmentation.
++
++\code
++VkBufferCreateInfo bufCreateInfo = ...
++
++MyBufferMetadata* pMetadata = CreateBufferMetadata();
++
++VmaAllocationCreateInfo allocCreateInfo = {};
++allocCreateInfo.usage = VMA_MEMORY_USAGE_AUTO;
++allocCreateInfo.pUserData = pMetadata;
++
++VkBuffer buffer;
++VmaAllocation allocation;
++vmaCreateBuffer(allocator, &bufCreateInfo, &allocCreateInfo, &buffer, &allocation, nullptr);
++\endcode
++
++The pointer may be later retrieved as VmaAllocationInfo::pUserData:
++
++\code
++VmaAllocationInfo allocInfo;
++vmaGetAllocationInfo(allocator, allocation, &allocInfo);
++MyBufferMetadata* pMetadata = (MyBufferMetadata*)allocInfo.pUserData;
++\endcode
++
++It can also be changed using function vmaSetAllocationUserData().
++
++Values of (non-zero) allocations' `pUserData` are printed in JSON report created by
++vmaBuildStatsString() in hexadecimal form.
++
++\section allocation_names Allocation names
++
++An allocation can also carry a null-terminated string, giving a name to the allocation.
++To set it, call vmaSetAllocationName().
++The library creates internal copy of the string, so the pointer you pass doesn't need
++to be valid for whole lifetime of the allocation. You can free it after the call.
++
++\code
++std::string imageName = "Texture: ";
++imageName += fileName;
++vmaSetAllocationName(allocator, allocation, imageName.c_str());
++\endcode
++
++The string can be later retrieved by inspecting VmaAllocationInfo::pName.
++It is also printed in JSON report created by vmaBuildStatsString().
++
++\note Setting string name to VMA allocation doesn't automatically set it to the Vulkan buffer or image created with it.
++You must do it manually using an extension like VK_EXT_debug_utils, which is independent of this library.
++
++
++\page virtual_allocator Virtual allocator
++
++As an extra feature, the core allocation algorithm of the library is exposed through a simple and convenient API of "virtual allocator".
++It doesn't allocate any real GPU memory. It just keeps track of used and free regions of a "virtual block".
++You can use it to allocate your own memory or other objects, even completely unrelated to Vulkan.
++A common use case is sub-allocation of pieces of one large GPU buffer.
++
++\section virtual_allocator_creating_virtual_block Creating virtual block
++
++To use this functionality, there is no main "allocator" object.
++You don't need to have #VmaAllocator object created.
++All you need to do is to create a separate #VmaVirtualBlock object for each block of memory you want to be managed by the allocator:
++
++-# Fill in #VmaVirtualBlockCreateInfo structure.
++-# Call vmaCreateVirtualBlock(). Get new #VmaVirtualBlock object.
++
++Example:
++
++\code
++VmaVirtualBlockCreateInfo blockCreateInfo = {};
++blockCreateInfo.size = 1048576; // 1 MB
++
++VmaVirtualBlock block;
++VkResult res = vmaCreateVirtualBlock(&blockCreateInfo, &block);
++\endcode
++
++\section virtual_allocator_making_virtual_allocations Making virtual allocations
++
++#VmaVirtualBlock object contains internal data structure that keeps track of free and occupied regions
++using the same code as the main Vulkan memory allocator.
++Similarly to #VmaAllocation for standard GPU allocations, there is #VmaVirtualAllocation type
++that represents an opaque handle to an allocation withing the virtual block.
++
++In order to make such allocation:
++
++-# Fill in #VmaVirtualAllocationCreateInfo structure.
++-# Call vmaVirtualAllocate(). Get new #VmaVirtualAllocation object that represents the allocation.
++   You can also receive `VkDeviceSize offset` that was assigned to the allocation.
++
++Example:
++
++\code
++VmaVirtualAllocationCreateInfo allocCreateInfo = {};
++allocCreateInfo.size = 4096; // 4 KB
++
++VmaVirtualAllocation alloc;
++VkDeviceSize offset;
++res = vmaVirtualAllocate(block, &allocCreateInfo, &alloc, &offset);
++if(res == VK_SUCCESS)
++{
++    // Use the 4 KB of your memory starting at offset.
++}
++else
++{
++    // Allocation failed - no space for it could be found. Handle this error!
++}
++\endcode
++
++\section virtual_allocator_deallocation Deallocation
++
++When no longer needed, an allocation can be freed by calling vmaVirtualFree().
++You can only pass to this function an allocation that was previously returned by vmaVirtualAllocate()
++called for the same #VmaVirtualBlock.
++
++When whole block is no longer needed, the block object can be released by calling vmaDestroyVirtualBlock().
++All allocations must be freed before the block is destroyed, which is checked internally by an assert.
++However, if you don't want to call vmaVirtualFree() for each allocation, you can use vmaClearVirtualBlock() to free them all at once -
++a feature not available in normal Vulkan memory allocator. Example:
++
++\code
++vmaVirtualFree(block, alloc);
++vmaDestroyVirtualBlock(block);
++\endcode
++
++\section virtual_allocator_allocation_parameters Allocation parameters
++
++You can attach a custom pointer to each allocation by using vmaSetVirtualAllocationUserData().
++Its default value is null.
++It can be used to store any data that needs to be associated with that allocation - e.g. an index, a handle, or a pointer to some
++larger data structure containing more information. Example:
++
++\code
++struct CustomAllocData
++{
++    std::string m_AllocName;
++};
++CustomAllocData* allocData = new CustomAllocData();
++allocData->m_AllocName = "My allocation 1";
++vmaSetVirtualAllocationUserData(block, alloc, allocData);
++\endcode
++
++The pointer can later be fetched, along with allocation offset and size, by passing the allocation handle to function
++vmaGetVirtualAllocationInfo() and inspecting returned structure #VmaVirtualAllocationInfo.
++If you allocated a new object to be used as the custom pointer, don't forget to delete that object before freeing the allocation!
++Example:
++
++\code
++VmaVirtualAllocationInfo allocInfo;
++vmaGetVirtualAllocationInfo(block, alloc, &allocInfo);
++delete (CustomAllocData*)allocInfo.pUserData;
++
++vmaVirtualFree(block, alloc);
++\endcode
++
++\section virtual_allocator_alignment_and_units Alignment and units
++
++It feels natural to express sizes and offsets in bytes.
++If an offset of an allocation needs to be aligned to a multiply of some number (e.g. 4 bytes), you can fill optional member
++VmaVirtualAllocationCreateInfo::alignment to request it. Example:
++
++\code
++VmaVirtualAllocationCreateInfo allocCreateInfo = {};
++allocCreateInfo.size = 4096; // 4 KB
++allocCreateInfo.alignment = 4; // Returned offset must be a multiply of 4 B
++
++VmaVirtualAllocation alloc;
++res = vmaVirtualAllocate(block, &allocCreateInfo, &alloc, nullptr);
++\endcode
++
++Alignments of different allocations made from one block may vary.
++However, if all alignments and sizes are always multiply of some size e.g. 4 B or `sizeof(MyDataStruct)`,
++you can express all sizes, alignments, and offsets in multiples of that size instead of individual bytes.
++It might be more convenient, but you need to make sure to use this new unit consistently in all the places:
++
++- VmaVirtualBlockCreateInfo::size
++- VmaVirtualAllocationCreateInfo::size and VmaVirtualAllocationCreateInfo::alignment
++- Using offset returned by vmaVirtualAllocate() or in VmaVirtualAllocationInfo::offset
++
++\section virtual_allocator_statistics Statistics
++
++You can obtain statistics of a virtual block using vmaGetVirtualBlockStatistics()
++(to get brief statistics that are fast to calculate)
++or vmaCalculateVirtualBlockStatistics() (to get more detailed statistics, slower to calculate).
++The functions fill structures #VmaStatistics, #VmaDetailedStatistics respectively - same as used by the normal Vulkan memory allocator.
++Example:
++
++\code
++VmaStatistics stats;
++vmaGetVirtualBlockStatistics(block, &stats);
++printf("My virtual block has %llu bytes used by %u virtual allocations\n",
++    stats.allocationBytes, stats.allocationCount);
++\endcode
++
++You can also request a full list of allocations and free regions as a string in JSON format by calling
++vmaBuildVirtualBlockStatsString().
++Returned string must be later freed using vmaFreeVirtualBlockStatsString().
++The format of this string differs from the one returned by the main Vulkan allocator, but it is similar.
++
++\section virtual_allocator_additional_considerations Additional considerations
++
++The "virtual allocator" functionality is implemented on a level of individual memory blocks.
++Keeping track of a whole collection of blocks, allocating new ones when out of free space,
++deleting empty ones, and deciding which one to try first for a new allocation must be implemented by the user.
++
++Alternative allocation algorithms are supported, just like in custom pools of the real GPU memory.
++See enum #VmaVirtualBlockCreateFlagBits to learn how to specify them (e.g. #VMA_VIRTUAL_BLOCK_CREATE_LINEAR_ALGORITHM_BIT).
++You can find their description in chapter \ref custom_memory_pools.
++Allocation strategies are also supported.
++See enum #VmaVirtualAllocationCreateFlagBits to learn how to specify them (e.g. #VMA_VIRTUAL_ALLOCATION_CREATE_STRATEGY_MIN_TIME_BIT).
++
++Following features are supported only by the allocator of the real GPU memory and not by virtual allocations:
++buffer-image granularity, `VMA_DEBUG_MARGIN`, `VMA_MIN_ALIGNMENT`.
++
++
++\page debugging_memory_usage Debugging incorrect memory usage
++
++If you suspect a bug with memory usage, like usage of uninitialized memory or
++memory being overwritten out of bounds of an allocation,
++you can use debug features of this library to verify this.
++
++\section debugging_memory_usage_initialization Memory initialization
++
++If you experience a bug with incorrect and nondeterministic data in your program and you suspect uninitialized memory to be used,
++you can enable automatic memory initialization to verify this.
++To do it, define macro `VMA_DEBUG_INITIALIZE_ALLOCATIONS` to 1.
++
++\code
++#define VMA_DEBUG_INITIALIZE_ALLOCATIONS 1
++#include "vk_mem_alloc.h"
++\endcode
++
++It makes memory of all new allocations initialized to bit pattern `0xDCDCDCDC`.
++Before an allocation is destroyed, its memory is filled with bit pattern `0xEFEFEFEF`.
++Memory is automatically mapped and unmapped if necessary.
++
++If you find these values while debugging your program, good chances are that you incorrectly
++read Vulkan memory that is allocated but not initialized, or already freed, respectively.
++
++Memory initialization works only with memory types that are `HOST_VISIBLE`.
++It works also with dedicated allocations.
++
++\section debugging_memory_usage_margins Margins
++
++By default, allocations are laid out in memory blocks next to each other if possible
++(considering required alignment, `bufferImageGranularity`, and `nonCoherentAtomSize`).
++
++![Allocations without margin](../gfx/Margins_1.png)
++
++Define macro `VMA_DEBUG_MARGIN` to some non-zero value (e.g. 16) to enforce specified
++number of bytes as a margin after every allocation.
++
++\code
++#define VMA_DEBUG_MARGIN 16
++#include "vk_mem_alloc.h"
++\endcode
++
++![Allocations with margin](../gfx/Margins_2.png)
++
++If your bug goes away after enabling margins, it means it may be caused by memory
++being overwritten outside of allocation boundaries. It is not 100% certain though.
++Change in application behavior may also be caused by different order and distribution
++of allocations across memory blocks after margins are applied.
++
++Margins work with all types of memory.
++
++Margin is applied only to allocations made out of memory blocks and not to dedicated
++allocations, which have their own memory block of specific size.
++It is thus not applied to allocations made using #VMA_ALLOCATION_CREATE_DEDICATED_MEMORY_BIT flag
++or those automatically decided to put into dedicated allocations, e.g. due to its
++large size or recommended by VK_KHR_dedicated_allocation extension.
++
++Margins appear in [JSON dump](@ref statistics_json_dump) as part of free space.
++
++Note that enabling margins increases memory usage and fragmentation.
++
++Margins do not apply to \ref virtual_allocator.
++
++\section debugging_memory_usage_corruption_detection Corruption detection
++
++You can additionally define macro `VMA_DEBUG_DETECT_CORRUPTION` to 1 to enable validation
++of contents of the margins.
++
++\code
++#define VMA_DEBUG_MARGIN 16
++#define VMA_DEBUG_DETECT_CORRUPTION 1
++#include "vk_mem_alloc.h"
++\endcode
++
++When this feature is enabled, number of bytes specified as `VMA_DEBUG_MARGIN`
++(it must be multiply of 4) after every allocation is filled with a magic number.
++This idea is also know as "canary".
++Memory is automatically mapped and unmapped if necessary.
++
++This number is validated automatically when the allocation is destroyed.
++If it is not equal to the expected value, `VMA_ASSERT()` is executed.
++It clearly means that either CPU or GPU overwritten the memory outside of boundaries of the allocation,
++which indicates a serious bug.
++
++You can also explicitly request checking margins of all allocations in all memory blocks
++that belong to specified memory types by using function vmaCheckCorruption(),
++or in memory blocks that belong to specified custom pool, by using function
++vmaCheckPoolCorruption().
++
++Margin validation (corruption detection) works only for memory types that are
++`HOST_VISIBLE` and `HOST_COHERENT`.
++
++
++\page opengl_interop OpenGL Interop
++
++VMA provides some features that help with interoperability with OpenGL.
++
++\section opengl_interop_exporting_memory Exporting memory
++
++If you want to attach `VkExportMemoryAllocateInfoKHR` structure to `pNext` chain of memory allocations made by the library:
++
++It is recommended to create \ref custom_memory_pools for such allocations.
++Define and fill in your `VkExportMemoryAllocateInfoKHR` structure and attach it to VmaPoolCreateInfo::pMemoryAllocateNext
++while creating the custom pool.
++Please note that the structure must remain alive and unchanged for the whole lifetime of the #VmaPool,
++not only while creating it, as no copy of the structure is made,
++but its original pointer is used for each allocation instead.
++
++If you want to export all memory allocated by the library from certain memory types,
++also dedicated allocations or other allocations made from default pools,
++an alternative solution is to fill in VmaAllocatorCreateInfo::pTypeExternalMemoryHandleTypes.
++It should point to an array with `VkExternalMemoryHandleTypeFlagsKHR` to be automatically passed by the library
++through `VkExportMemoryAllocateInfoKHR` on each allocation made from a specific memory type.
++Please note that new versions of the library also support dedicated allocations created in custom pools.
++
++You should not mix these two methods in a way that allows to apply both to the same memory type.
++Otherwise, `VkExportMemoryAllocateInfoKHR` structure would be attached twice to the `pNext` chain of `VkMemoryAllocateInfo`.
++
++
++\section opengl_interop_custom_alignment Custom alignment
++
++Buffers or images exported to a different API like OpenGL may require a different alignment,
++higher than the one used by the library automatically, queried from functions like `vkGetBufferMemoryRequirements`.
++To impose such alignment:
++
++It is recommended to create \ref custom_memory_pools for such allocations.
++Set VmaPoolCreateInfo::minAllocationAlignment member to the minimum alignment required for each allocation
++to be made out of this pool.
++The alignment actually used will be the maximum of this member and the alignment returned for the specific buffer or image
++from a function like `vkGetBufferMemoryRequirements`, which is called by VMA automatically.
++
++If you want to create a buffer with a specific minimum alignment out of default pools,
++use special function vmaCreateBufferWithAlignment(), which takes additional parameter `minAlignment`.
++
++Note the problem of alignment affects only resources placed inside bigger `VkDeviceMemory` blocks and not dedicated
++allocations, as these, by definition, always have alignment = 0 because the resource is bound to the beginning of its dedicated block.
++Contrary to Direct3D 12, Vulkan doesn't have a concept of alignment of the entire memory block passed on its allocation.
++
++
++\page usage_patterns Recommended usage patterns
++
++Vulkan gives great flexibility in memory allocation.
++This chapter shows the most common patterns.
++
++See also slides from talk:
++[Sawicki, Adam. Advanced Graphics Techniques Tutorial: Memory management in Vulkan and DX12. Game Developers Conference, 2018](https://www.gdcvault.com/play/1025458/Advanced-Graphics-Techniques-Tutorial-New)
++
++
++\section usage_patterns_gpu_only GPU-only resource
++
++<b>When:</b>
++Any resources that you frequently write and read on GPU,
++e.g. images used as color attachments (aka "render targets"), depth-stencil attachments,
++images/buffers used as storage image/buffer (aka "Unordered Access View (UAV)").
++
++<b>What to do:</b>
++Let the library select the optimal memory type, which will likely have `VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT`.
++
++\code
++VkImageCreateInfo imgCreateInfo = { VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO };
++imgCreateInfo.imageType = VK_IMAGE_TYPE_2D;
++imgCreateInfo.extent.width = 3840;
++imgCreateInfo.extent.height = 2160;
++imgCreateInfo.extent.depth = 1;
++imgCreateInfo.mipLevels = 1;
++imgCreateInfo.arrayLayers = 1;
++imgCreateInfo.format = VK_FORMAT_R8G8B8A8_UNORM;
++imgCreateInfo.tiling = VK_IMAGE_TILING_OPTIMAL;
++imgCreateInfo.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
++imgCreateInfo.usage = VK_IMAGE_USAGE_SAMPLED_BIT | VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT;
++imgCreateInfo.samples = VK_SAMPLE_COUNT_1_BIT;
++
++VmaAllocationCreateInfo allocCreateInfo = {};
++allocCreateInfo.usage = VMA_MEMORY_USAGE_AUTO;
++allocCreateInfo.flags = VMA_ALLOCATION_CREATE_DEDICATED_MEMORY_BIT;
++allocCreateInfo.priority = 1.0f;
++
++VkImage img;
++VmaAllocation alloc;
++vmaCreateImage(allocator, &imgCreateInfo, &allocCreateInfo, &img, &alloc, nullptr);
++\endcode
++
++<b>Also consider:</b>
++Consider creating them as dedicated allocations using #VMA_ALLOCATION_CREATE_DEDICATED_MEMORY_BIT,
++especially if they are large or if you plan to destroy and recreate them with different sizes
++e.g. when display resolution changes.
++Prefer to create such resources first and all other GPU resources (like textures and vertex buffers) later.
++When VK_EXT_memory_priority extension is enabled, it is also worth setting high priority to such allocation
++to decrease chances to be evicted to system memory by the operating system.
++
++\section usage_patterns_staging_copy_upload Staging copy for upload
++
++<b>When:</b>
++A "staging" buffer than you want to map and fill from CPU code, then use as a source od transfer
++to some GPU resource.
++
++<b>What to do:</b>
++Use flag #VMA_ALLOCATION_CREATE_HOST_ACCESS_SEQUENTIAL_WRITE_BIT.
++Let the library select the optimal memory type, which will always have `VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT`.
++
++\code
++VkBufferCreateInfo bufCreateInfo = { VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO };
++bufCreateInfo.size = 65536;
++bufCreateInfo.usage = VK_BUFFER_USAGE_TRANSFER_SRC_BIT;
++
++VmaAllocationCreateInfo allocCreateInfo = {};
++allocCreateInfo.usage = VMA_MEMORY_USAGE_AUTO;
++allocCreateInfo.flags = VMA_ALLOCATION_CREATE_HOST_ACCESS_SEQUENTIAL_WRITE_BIT |
++    VMA_ALLOCATION_CREATE_MAPPED_BIT;
++
++VkBuffer buf;
++VmaAllocation alloc;
++VmaAllocationInfo allocInfo;
++vmaCreateBuffer(allocator, &bufCreateInfo, &allocCreateInfo, &buf, &alloc, &allocInfo);
++
++...
++
++memcpy(allocInfo.pMappedData, myData, myDataSize);
++\endcode
++
++<b>Also consider:</b>
++You can map the allocation using vmaMapMemory() or you can create it as persistenly mapped
++using #VMA_ALLOCATION_CREATE_MAPPED_BIT, as in the example above.
++
++
++\section usage_patterns_readback Readback
++
++<b>When:</b>
++Buffers for data written by or transferred from the GPU that you want to read back on the CPU,
++e.g. results of some computations.
++
++<b>What to do:</b>
++Use flag #VMA_ALLOCATION_CREATE_HOST_ACCESS_RANDOM_BIT.
++Let the library select the optimal memory type, which will always have `VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT`
++and `VK_MEMORY_PROPERTY_HOST_CACHED_BIT`.
++
++\code
++VkBufferCreateInfo bufCreateInfo = { VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO };
++bufCreateInfo.size = 65536;
++bufCreateInfo.usage = VK_BUFFER_USAGE_TRANSFER_DST_BIT;
++
++VmaAllocationCreateInfo allocCreateInfo = {};
++allocCreateInfo.usage = VMA_MEMORY_USAGE_AUTO;
++allocCreateInfo.flags = VMA_ALLOCATION_CREATE_HOST_ACCESS_RANDOM_BIT |
++    VMA_ALLOCATION_CREATE_MAPPED_BIT;
++
++VkBuffer buf;
++VmaAllocation alloc;
++VmaAllocationInfo allocInfo;
++vmaCreateBuffer(allocator, &bufCreateInfo, &allocCreateInfo, &buf, &alloc, &allocInfo);
++
++...
++
++const float* downloadedData = (const float*)allocInfo.pMappedData;
++\endcode
++
++
++\section usage_patterns_advanced_data_uploading Advanced data uploading
++
++For resources that you frequently write on CPU via mapped pointer and
++freqnently read on GPU e.g. as a uniform buffer (also called "dynamic"), multiple options are possible:
++
++-# Easiest solution is to have one copy of the resource in `HOST_VISIBLE` memory,
++   even if it means system RAM (not `DEVICE_LOCAL`) on systems with a discrete graphics card,
++   and make the device reach out to that resource directly.
++   - Reads performed by the device will then go through PCI Express bus.
++     The performace of this access may be limited, but it may be fine depending on the size
++     of this resource (whether it is small enough to quickly end up in GPU cache) and the sparsity
++     of access.
++-# On systems with unified memory (e.g. AMD APU or Intel integrated graphics, mobile chips),
++   a memory type may be available that is both `HOST_VISIBLE` (available for mapping) and `DEVICE_LOCAL`
++   (fast to access from the GPU). Then, it is likely the best choice for such type of resource.
++-# Systems with a discrete graphics card and separate video memory may or may not expose
++   a memory type that is both `HOST_VISIBLE` and `DEVICE_LOCAL`, also known as Base Address Register (BAR).
++   If they do, it represents a piece of VRAM (or entire VRAM, if ReBAR is enabled in the motherboard BIOS)
++   that is available to CPU for mapping.
++   - Writes performed by the host to that memory go through PCI Express bus.
++     The performance of these writes may be limited, but it may be fine, especially on PCIe 4.0,
++     as long as rules of using uncached and write-combined memory are followed - only sequential writes and no reads.
++-# Finally, you may need or prefer to create a separate copy of the resource in `DEVICE_LOCAL` memory,
++   a separate "staging" copy in `HOST_VISIBLE` memory and perform an explicit transfer command between them.
++
++Thankfully, VMA offers an aid to create and use such resources in the the way optimal
++for the current Vulkan device. To help the library make the best choice,
++use flag #VMA_ALLOCATION_CREATE_HOST_ACCESS_SEQUENTIAL_WRITE_BIT together with
++#VMA_ALLOCATION_CREATE_HOST_ACCESS_ALLOW_TRANSFER_INSTEAD_BIT.
++It will then prefer a memory type that is both `DEVICE_LOCAL` and `HOST_VISIBLE` (integrated memory or BAR),
++but if no such memory type is available or allocation from it fails
++(PC graphics cards have only 256 MB of BAR by default, unless ReBAR is supported and enabled in BIOS),
++it will fall back to `DEVICE_LOCAL` memory for fast GPU access.
++It is then up to you to detect that the allocation ended up in a memory type that is not `HOST_VISIBLE`,
++so you need to create another "staging" allocation and perform explicit transfers.
++
++\code
++VkBufferCreateInfo bufCreateInfo = { VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO };
++bufCreateInfo.size = 65536;
++bufCreateInfo.usage = VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT | VK_BUFFER_USAGE_TRANSFER_DST_BIT;
++ 
++VmaAllocationCreateInfo allocCreateInfo = {};
++allocCreateInfo.usage = VMA_MEMORY_USAGE_AUTO;
++allocCreateInfo.flags = VMA_ALLOCATION_CREATE_HOST_ACCESS_SEQUENTIAL_WRITE_BIT |
++    VMA_ALLOCATION_CREATE_HOST_ACCESS_ALLOW_TRANSFER_INSTEAD_BIT |
++    VMA_ALLOCATION_CREATE_MAPPED_BIT;
++ 
++VkBuffer buf;
++VmaAllocation alloc;
++VmaAllocationInfo allocInfo;
++vmaCreateBuffer(allocator, &bufCreateInfo, &allocCreateInfo, &buf, &alloc, &allocInfo);
++
++VkMemoryPropertyFlags memPropFlags;
++vmaGetAllocationMemoryProperties(allocator, alloc, &memPropFlags);
++
++if(memPropFlags & VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT)
++{
++    // Allocation ended up in a mappable memory and is already mapped - write to it directly.
++
++    // [Executed in runtime]:
++    memcpy(allocInfo.pMappedData, myData, myDataSize);
++}
++else
++{
++    // Allocation ended up in a non-mappable memory - need to transfer.
++    VkBufferCreateInfo stagingBufCreateInfo = { VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO };
++    stagingBufCreateInfo.size = 65536;
++    stagingBufCreateInfo.usage = VK_BUFFER_USAGE_TRANSFER_SRC_BIT;
++
++    VmaAllocationCreateInfo stagingAllocCreateInfo = {};
++    stagingAllocCreateInfo.usage = VMA_MEMORY_USAGE_AUTO;
++    stagingAllocCreateInfo.flags = VMA_ALLOCATION_CREATE_HOST_ACCESS_SEQUENTIAL_WRITE_BIT |
++        VMA_ALLOCATION_CREATE_MAPPED_BIT;
++
++    VkBuffer stagingBuf;
++    VmaAllocation stagingAlloc;
++    VmaAllocationInfo stagingAllocInfo;
++    vmaCreateBuffer(allocator, &stagingBufCreateInfo, &stagingAllocCreateInfo,
++        &stagingBuf, &stagingAlloc, stagingAllocInfo);
++
++    // [Executed in runtime]:
++    memcpy(stagingAllocInfo.pMappedData, myData, myDataSize);
++    //vkCmdPipelineBarrier: VK_ACCESS_HOST_WRITE_BIT --> VK_ACCESS_TRANSFER_READ_BIT
++    VkBufferCopy bufCopy = {
++        0, // srcOffset
++        0, // dstOffset,
++        myDataSize); // size
++    vkCmdCopyBuffer(cmdBuf, stagingBuf, buf, 1, &bufCopy);
++}
++\endcode
++
++\section usage_patterns_other_use_cases Other use cases
++
++Here are some other, less obvious use cases and their recommended settings:
++
++- An image that is used only as transfer source and destination, but it should stay on the device,
++  as it is used to temporarily store a copy of some texture, e.g. from the current to the next frame,
++  for temporal antialiasing or other temporal effects.
++  - Use `VkImageCreateInfo::usage = VK_IMAGE_USAGE_TRANSFER_SRC_BIT | VK_IMAGE_USAGE_TRANSFER_DST_BIT`
++  - Use VmaAllocationCreateInfo::usage = #VMA_MEMORY_USAGE_AUTO
++- An image that is used only as transfer source and destination, but it should be placed
++  in the system RAM despite it doesn't need to be mapped, because it serves as a "swap" copy to evict
++  least recently used textures from VRAM.
++  - Use `VkImageCreateInfo::usage = VK_IMAGE_USAGE_TRANSFER_SRC_BIT | VK_IMAGE_USAGE_TRANSFER_DST_BIT`
++  - Use VmaAllocationCreateInfo::usage = #VMA_MEMORY_USAGE_AUTO_PREFER_HOST,
++    as VMA needs a hint here to differentiate from the previous case.
++- A buffer that you want to map and write from the CPU, directly read from the GPU
++  (e.g. as a uniform or vertex buffer), but you have a clear preference to place it in device or
++  host memory due to its large size.
++  - Use `VkBufferCreateInfo::usage = VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT`
++  - Use VmaAllocationCreateInfo::usage = #VMA_MEMORY_USAGE_AUTO_PREFER_DEVICE or #VMA_MEMORY_USAGE_AUTO_PREFER_HOST
++  - Use VmaAllocationCreateInfo::flags = #VMA_ALLOCATION_CREATE_HOST_ACCESS_SEQUENTIAL_WRITE_BIT
++
++
++\page configuration Configuration
++
++Please check "CONFIGURATION SECTION" in the code to find macros that you can define
++before each include of this file or change directly in this file to provide
++your own implementation of basic facilities like assert, `min()` and `max()` functions,
++mutex, atomic etc.
++The library uses its own implementation of containers by default, but you can switch to using
++STL containers instead.
++
++For example, define `VMA_ASSERT(expr)` before including the library to provide
++custom implementation of the assertion, compatible with your project.
++By default it is defined to standard C `assert(expr)` in `_DEBUG` configuration
++and empty otherwise.
++
++\section config_Vulkan_functions Pointers to Vulkan functions
++
++There are multiple ways to import pointers to Vulkan functions in the library.
++In the simplest case you don't need to do anything.
++If the compilation or linking of your program or the initialization of the #VmaAllocator
++doesn't work for you, you can try to reconfigure it.
++
++First, the allocator tries to fetch pointers to Vulkan functions linked statically,
++like this:
++
++\code
++m_VulkanFunctions.vkAllocateMemory = (PFN_vkAllocateMemory)vkAllocateMemory;
++\endcode
++
++If you want to disable this feature, set configuration macro: `#define VMA_STATIC_VULKAN_FUNCTIONS 0`.
++
++Second, you can provide the pointers yourself by setting member VmaAllocatorCreateInfo::pVulkanFunctions.
++You can fetch them e.g. using functions `vkGetInstanceProcAddr` and `vkGetDeviceProcAddr` or
++by using a helper library like [volk](https://github.com/zeux/volk).
++
++Third, VMA tries to fetch remaining pointers that are still null by calling
++`vkGetInstanceProcAddr` and `vkGetDeviceProcAddr` on its own.
++You need to only fill in VmaVulkanFunctions::vkGetInstanceProcAddr and VmaVulkanFunctions::vkGetDeviceProcAddr.
++Other pointers will be fetched automatically.
++If you want to disable this feature, set configuration macro: `#define VMA_DYNAMIC_VULKAN_FUNCTIONS 0`.
++
++Finally, all the function pointers required by the library (considering selected
++Vulkan version and enabled extensions) are checked with `VMA_ASSERT` if they are not null.
++
++
++\section custom_memory_allocator Custom host memory allocator
++
++If you use custom allocator for CPU memory rather than default operator `new`
++and `delete` from C++, you can make this library using your allocator as well
++by filling optional member VmaAllocatorCreateInfo::pAllocationCallbacks. These
++functions will be passed to Vulkan, as well as used by the library itself to
++make any CPU-side allocations.
++
++\section allocation_callbacks Device memory allocation callbacks
++
++The library makes calls to `vkAllocateMemory()` and `vkFreeMemory()` internally.
++You can setup callbacks to be informed about these calls, e.g. for the purpose
++of gathering some statistics. To do it, fill optional member
++VmaAllocatorCreateInfo::pDeviceMemoryCallbacks.
++
++\section heap_memory_limit Device heap memory limit
++
++When device memory of certain heap runs out of free space, new allocations may
++fail (returning error code) or they may succeed, silently pushing some existing_
++memory blocks from GPU VRAM to system RAM (which degrades performance). This
++behavior is implementation-dependent - it depends on GPU vendor and graphics
++driver.
++
++On AMD cards it can be controlled while creating Vulkan device object by using
++VK_AMD_memory_overallocation_behavior extension, if available.
++
++Alternatively, if you want to test how your program behaves with limited amount of Vulkan device
++memory available without switching your graphics card to one that really has
++smaller VRAM, you can use a feature of this library intended for this purpose.
++To do it, fill optional member VmaAllocatorCreateInfo::pHeapSizeLimit.
++
++
++
++\page vk_khr_dedicated_allocation VK_KHR_dedicated_allocation
++
++VK_KHR_dedicated_allocation is a Vulkan extension which can be used to improve
++performance on some GPUs. It augments Vulkan API with possibility to query
++driver whether it prefers particular buffer or image to have its own, dedicated
++allocation (separate `VkDeviceMemory` block) for better efficiency - to be able
++to do some internal optimizations. The extension is supported by this library.
++It will be used automatically when enabled.
++
++It has been promoted to core Vulkan 1.1, so if you use eligible Vulkan version
++and inform VMA about it by setting VmaAllocatorCreateInfo::vulkanApiVersion,
++you are all set.
++
++Otherwise, if you want to use it as an extension:
++
++1 . When creating Vulkan device, check if following 2 device extensions are
++supported (call `vkEnumerateDeviceExtensionProperties()`).
++If yes, enable them (fill `VkDeviceCreateInfo::ppEnabledExtensionNames`).
++
++- VK_KHR_get_memory_requirements2
++- VK_KHR_dedicated_allocation
++
++If you enabled these extensions:
++
++2 . Use #VMA_ALLOCATOR_CREATE_KHR_DEDICATED_ALLOCATION_BIT flag when creating
++your #VmaAllocator to inform the library that you enabled required extensions
++and you want the library to use them.
++
++\code
++allocatorInfo.flags |= VMA_ALLOCATOR_CREATE_KHR_DEDICATED_ALLOCATION_BIT;
++
++vmaCreateAllocator(&allocatorInfo, &allocator);
++\endcode
++
++That is all. The extension will be automatically used whenever you create a
++buffer using vmaCreateBuffer() or image using vmaCreateImage().
++
++When using the extension together with Vulkan Validation Layer, you will receive
++warnings like this:
++
++_vkBindBufferMemory(): Binding memory to buffer 0x33 but vkGetBufferMemoryRequirements() has not been called on that buffer._
++
++It is OK, you should just ignore it. It happens because you use function
++`vkGetBufferMemoryRequirements2KHR()` instead of standard
++`vkGetBufferMemoryRequirements()`, while the validation layer seems to be
++unaware of it.
++
++To learn more about this extension, see:
++
++- [VK_KHR_dedicated_allocation in Vulkan specification](https://www.khronos.org/registry/vulkan/specs/1.2-extensions/html/chap50.html#VK_KHR_dedicated_allocation)
++- [VK_KHR_dedicated_allocation unofficial manual](http://asawicki.info/articles/VK_KHR_dedicated_allocation.php5)
++
++
++
++\page vk_ext_memory_priority VK_EXT_memory_priority
++
++VK_EXT_memory_priority is a device extension that allows to pass additional "priority"
++value to Vulkan memory allocations that the implementation may use prefer certain
++buffers and images that are critical for performance to stay in device-local memory
++in cases when the memory is over-subscribed, while some others may be moved to the system memory.
++
++VMA offers convenient usage of this extension.
++If you enable it, you can pass "priority" parameter when creating allocations or custom pools
++and the library automatically passes the value to Vulkan using this extension.
++
++If you want to use this extension in connection with VMA, follow these steps:
++
++\section vk_ext_memory_priority_initialization Initialization
++
++1) Call `vkEnumerateDeviceExtensionProperties` for the physical device.
++Check if the extension is supported - if returned array of `VkExtensionProperties` contains "VK_EXT_memory_priority".
++
++2) Call `vkGetPhysicalDeviceFeatures2` for the physical device instead of old `vkGetPhysicalDeviceFeatures`.
++Attach additional structure `VkPhysicalDeviceMemoryPriorityFeaturesEXT` to `VkPhysicalDeviceFeatures2::pNext` to be returned.
++Check if the device feature is really supported - check if `VkPhysicalDeviceMemoryPriorityFeaturesEXT::memoryPriority` is true.
++
++3) While creating device with `vkCreateDevice`, enable this extension - add "VK_EXT_memory_priority"
++to the list passed as `VkDeviceCreateInfo::ppEnabledExtensionNames`.
++
++4) While creating the device, also don't set `VkDeviceCreateInfo::pEnabledFeatures`.
++Fill in `VkPhysicalDeviceFeatures2` structure instead and pass it as `VkDeviceCreateInfo::pNext`.
++Enable this device feature - attach additional structure `VkPhysicalDeviceMemoryPriorityFeaturesEXT` to
++`VkPhysicalDeviceFeatures2::pNext` chain and set its member `memoryPriority` to `VK_TRUE`.
++
++5) While creating #VmaAllocator with vmaCreateAllocator() inform VMA that you
++have enabled this extension and feature - add #VMA_ALLOCATOR_CREATE_EXT_MEMORY_PRIORITY_BIT
++to VmaAllocatorCreateInfo::flags.
++
++\section vk_ext_memory_priority_usage Usage
++
++When using this extension, you should initialize following member:
++
++- VmaAllocationCreateInfo::priority when creating a dedicated allocation with #VMA_ALLOCATION_CREATE_DEDICATED_MEMORY_BIT.
++- VmaPoolCreateInfo::priority when creating a custom pool.
++
++It should be a floating-point value between `0.0f` and `1.0f`, where recommended default is `0.5f`.
++Memory allocated with higher value can be treated by the Vulkan implementation as higher priority
++and so it can have lower chances of being pushed out to system memory, experiencing degraded performance.
++
++It might be a good idea to create performance-critical resources like color-attachment or depth-stencil images
++as dedicated and set high priority to them. For example:
++
++\code
++VkImageCreateInfo imgCreateInfo = { VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO };
++imgCreateInfo.imageType = VK_IMAGE_TYPE_2D;
++imgCreateInfo.extent.width = 3840;
++imgCreateInfo.extent.height = 2160;
++imgCreateInfo.extent.depth = 1;
++imgCreateInfo.mipLevels = 1;
++imgCreateInfo.arrayLayers = 1;
++imgCreateInfo.format = VK_FORMAT_R8G8B8A8_UNORM;
++imgCreateInfo.tiling = VK_IMAGE_TILING_OPTIMAL;
++imgCreateInfo.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
++imgCreateInfo.usage = VK_IMAGE_USAGE_SAMPLED_BIT | VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT;
++imgCreateInfo.samples = VK_SAMPLE_COUNT_1_BIT;
++
++VmaAllocationCreateInfo allocCreateInfo = {};
++allocCreateInfo.usage = VMA_MEMORY_USAGE_AUTO;
++allocCreateInfo.flags = VMA_ALLOCATION_CREATE_DEDICATED_MEMORY_BIT;
++allocCreateInfo.priority = 1.0f;
++
++VkImage img;
++VmaAllocation alloc;
++vmaCreateImage(allocator, &imgCreateInfo, &allocCreateInfo, &img, &alloc, nullptr);
++\endcode
++
++`priority` member is ignored in the following situations:
++
++- Allocations created in custom pools: They inherit the priority, along with all other allocation parameters
++  from the parametrs passed in #VmaPoolCreateInfo when the pool was created.
++- Allocations created in default pools: They inherit the priority from the parameters
++  VMA used when creating default pools, which means `priority == 0.5f`.
++
++
++\page vk_amd_device_coherent_memory VK_AMD_device_coherent_memory
++
++VK_AMD_device_coherent_memory is a device extension that enables access to
++additional memory types with `VK_MEMORY_PROPERTY_DEVICE_COHERENT_BIT_AMD` and
++`VK_MEMORY_PROPERTY_DEVICE_UNCACHED_BIT_AMD` flag. It is useful mostly for
++allocation of buffers intended for writing "breadcrumb markers" in between passes
++or draw calls, which in turn are useful for debugging GPU crash/hang/TDR cases.
++
++When the extension is available but has not been enabled, Vulkan physical device
++still exposes those memory types, but their usage is forbidden. VMA automatically
++takes care of that - it returns `VK_ERROR_FEATURE_NOT_PRESENT` when an attempt
++to allocate memory of such type is made.
++
++If you want to use this extension in connection with VMA, follow these steps:
++
++\section vk_amd_device_coherent_memory_initialization Initialization
++
++1) Call `vkEnumerateDeviceExtensionProperties` for the physical device.
++Check if the extension is supported - if returned array of `VkExtensionProperties` contains "VK_AMD_device_coherent_memory".
++
++2) Call `vkGetPhysicalDeviceFeatures2` for the physical device instead of old `vkGetPhysicalDeviceFeatures`.
++Attach additional structure `VkPhysicalDeviceCoherentMemoryFeaturesAMD` to `VkPhysicalDeviceFeatures2::pNext` to be returned.
++Check if the device feature is really supported - check if `VkPhysicalDeviceCoherentMemoryFeaturesAMD::deviceCoherentMemory` is true.
++
++3) While creating device with `vkCreateDevice`, enable this extension - add "VK_AMD_device_coherent_memory"
++to the list passed as `VkDeviceCreateInfo::ppEnabledExtensionNames`.
++
++4) While creating the device, also don't set `VkDeviceCreateInfo::pEnabledFeatures`.
++Fill in `VkPhysicalDeviceFeatures2` structure instead and pass it as `VkDeviceCreateInfo::pNext`.
++Enable this device feature - attach additional structure `VkPhysicalDeviceCoherentMemoryFeaturesAMD` to
++`VkPhysicalDeviceFeatures2::pNext` and set its member `deviceCoherentMemory` to `VK_TRUE`.
++
++5) While creating #VmaAllocator with vmaCreateAllocator() inform VMA that you
++have enabled this extension and feature - add #VMA_ALLOCATOR_CREATE_AMD_DEVICE_COHERENT_MEMORY_BIT
++to VmaAllocatorCreateInfo::flags.
++
++\section vk_amd_device_coherent_memory_usage Usage
++
++After following steps described above, you can create VMA allocations and custom pools
++out of the special `DEVICE_COHERENT` and `DEVICE_UNCACHED` memory types on eligible
++devices. There are multiple ways to do it, for example:
++
++- You can request or prefer to allocate out of such memory types by adding
++  `VK_MEMORY_PROPERTY_DEVICE_UNCACHED_BIT_AMD` to VmaAllocationCreateInfo::requiredFlags
++  or VmaAllocationCreateInfo::preferredFlags. Those flags can be freely mixed with
++  other ways of \ref choosing_memory_type, like setting VmaAllocationCreateInfo::usage.
++- If you manually found memory type index to use for this purpose, force allocation
++  from this specific index by setting VmaAllocationCreateInfo::memoryTypeBits `= 1u << index`.
++
++\section vk_amd_device_coherent_memory_more_information More information
++
++To learn more about this extension, see [VK_AMD_device_coherent_memory in Vulkan specification](https://www.khronos.org/registry/vulkan/specs/1.2-extensions/man/html/VK_AMD_device_coherent_memory.html)
++
++Example use of this extension can be found in the code of the sample and test suite
++accompanying this library.
++
++
++\page enabling_buffer_device_address Enabling buffer device address
++
++Device extension VK_KHR_buffer_device_address
++allow to fetch raw GPU pointer to a buffer and pass it for usage in a shader code.
++It has been promoted to core Vulkan 1.2.
++
++If you want to use this feature in connection with VMA, follow these steps:
++
++\section enabling_buffer_device_address_initialization Initialization
++
++1) (For Vulkan version < 1.2) Call `vkEnumerateDeviceExtensionProperties` for the physical device.
++Check if the extension is supported - if returned array of `VkExtensionProperties` contains
++"VK_KHR_buffer_device_address".
++
++2) Call `vkGetPhysicalDeviceFeatures2` for the physical device instead of old `vkGetPhysicalDeviceFeatures`.
++Attach additional structure `VkPhysicalDeviceBufferDeviceAddressFeatures*` to `VkPhysicalDeviceFeatures2::pNext` to be returned.
++Check if the device feature is really supported - check if `VkPhysicalDeviceBufferDeviceAddressFeatures::bufferDeviceAddress` is true.
++
++3) (For Vulkan version < 1.2) While creating device with `vkCreateDevice`, enable this extension - add
++"VK_KHR_buffer_device_address" to the list passed as `VkDeviceCreateInfo::ppEnabledExtensionNames`.
++
++4) While creating the device, also don't set `VkDeviceCreateInfo::pEnabledFeatures`.
++Fill in `VkPhysicalDeviceFeatures2` structure instead and pass it as `VkDeviceCreateInfo::pNext`.
++Enable this device feature - attach additional structure `VkPhysicalDeviceBufferDeviceAddressFeatures*` to
++`VkPhysicalDeviceFeatures2::pNext` and set its member `bufferDeviceAddress` to `VK_TRUE`.
++
++5) While creating #VmaAllocator with vmaCreateAllocator() inform VMA that you
++have enabled this feature - add #VMA_ALLOCATOR_CREATE_BUFFER_DEVICE_ADDRESS_BIT
++to VmaAllocatorCreateInfo::flags.
++
++\section enabling_buffer_device_address_usage Usage
++
++After following steps described above, you can create buffers with `VK_BUFFER_USAGE_SHADER_DEVICE_ADDRESS_BIT*` using VMA.
++The library automatically adds `VK_MEMORY_ALLOCATE_DEVICE_ADDRESS_BIT*` to
++allocated memory blocks wherever it might be needed.
++
++Please note that the library supports only `VK_BUFFER_USAGE_SHADER_DEVICE_ADDRESS_BIT*`.
++The second part of this functionality related to "capture and replay" is not supported,
++as it is intended for usage in debugging tools like RenderDoc, not in everyday Vulkan usage.
++
++\section enabling_buffer_device_address_more_information More information
++
++To learn more about this extension, see [VK_KHR_buffer_device_address in Vulkan specification](https://www.khronos.org/registry/vulkan/specs/1.2-extensions/html/chap46.html#VK_KHR_buffer_device_address)
++
++Example use of this extension can be found in the code of the sample and test suite
++accompanying this library.
++
++\page general_considerations General considerations
++
++\section general_considerations_thread_safety Thread safety
++
++- The library has no global state, so separate #VmaAllocator objects can be used
++  independently.
++  There should be no need to create multiple such objects though - one per `VkDevice` is enough.
++- By default, all calls to functions that take #VmaAllocator as first parameter
++  are safe to call from multiple threads simultaneously because they are
++  synchronized internally when needed.
++  This includes allocation and deallocation from default memory pool, as well as custom #VmaPool.
++- When the allocator is created with #VMA_ALLOCATOR_CREATE_EXTERNALLY_SYNCHRONIZED_BIT
++  flag, calls to functions that take such #VmaAllocator object must be
++  synchronized externally.
++- Access to a #VmaAllocation object must be externally synchronized. For example,
++  you must not call vmaGetAllocationInfo() and vmaMapMemory() from different
++  threads at the same time if you pass the same #VmaAllocation object to these
++  functions.
++- #VmaVirtualBlock is not safe to be used from multiple threads simultaneously.
++
++\section general_considerations_versioning_and_compatibility Versioning and compatibility
++
++The library uses [**Semantic Versioning**](https://semver.org/),
++which means version numbers follow convention: Major.Minor.Patch (e.g. 2.3.0), where:
++
++- Incremented Patch version means a release is backward- and forward-compatible,
++  introducing only some internal improvements, bug fixes, optimizations etc.
++  or changes that are out of scope of the official API described in this documentation.
++- Incremented Minor version means a release is backward-compatible,
++  so existing code that uses the library should continue to work, while some new
++  symbols could have been added: new structures, functions, new values in existing
++  enums and bit flags, new structure members, but not new function parameters.
++- Incrementing Major version means a release could break some backward compatibility.
++
++All changes between official releases are documented in file "CHANGELOG.md".
++
++\warning Backward compatiblity is considered on the level of C++ source code, not binary linkage.
++Adding new members to existing structures is treated as backward compatible if initializing
++the new members to binary zero results in the old behavior.
++You should always fully initialize all library structures to zeros and not rely on their
++exact binary size.
++
++\section general_considerations_validation_layer_warnings Validation layer warnings
++
++When using this library, you can meet following types of warnings issued by
++Vulkan validation layer. They don't necessarily indicate a bug, so you may need
++to just ignore them.
++
++- *vkBindBufferMemory(): Binding memory to buffer 0xeb8e4 but vkGetBufferMemoryRequirements() has not been called on that buffer.*
++  - It happens when VK_KHR_dedicated_allocation extension is enabled.
++    `vkGetBufferMemoryRequirements2KHR` function is used instead, while validation layer seems to be unaware of it.
++- *Mapping an image with layout VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL can result in undefined behavior if this memory is used by the device. Only GENERAL or PREINITIALIZED should be used.*
++  - It happens when you map a buffer or image, because the library maps entire
++    `VkDeviceMemory` block, where different types of images and buffers may end
++    up together, especially on GPUs with unified memory like Intel.
++- *Non-linear image 0xebc91 is aliased with linear buffer 0xeb8e4 which may indicate a bug.*
++  - It may happen when you use [defragmentation](@ref defragmentation).
++
++\section general_considerations_allocation_algorithm Allocation algorithm
++
++The library uses following algorithm for allocation, in order:
++
++-# Try to find free range of memory in existing blocks.
++-# If failed, try to create a new block of `VkDeviceMemory`, with preferred block size.
++-# If failed, try to create such block with size / 2, size / 4, size / 8.
++-# If failed, try to allocate separate `VkDeviceMemory` for this allocation,
++   just like when you use #VMA_ALLOCATION_CREATE_DEDICATED_MEMORY_BIT.
++-# If failed, choose other memory type that meets the requirements specified in
++   VmaAllocationCreateInfo and go to point 1.
++-# If failed, return `VK_ERROR_OUT_OF_DEVICE_MEMORY`.
++
++\section general_considerations_features_not_supported Features not supported
++
++Features deliberately excluded from the scope of this library:
++
++-# **Data transfer.** Uploading (streaming) and downloading data of buffers and images
++   between CPU and GPU memory and related synchronization is responsibility of the user.
++   Defining some "texture" object that would automatically stream its data from a
++   staging copy in CPU memory to GPU memory would rather be a feature of another,
++   higher-level library implemented on top of VMA.
++   VMA doesn't record any commands to a `VkCommandBuffer`. It just allocates memory.
++-# **Recreation of buffers and images.** Although the library has functions for
++   buffer and image creation: vmaCreateBuffer(), vmaCreateImage(), you need to
++   recreate these objects yourself after defragmentation. That is because the big
++   structures `VkBufferCreateInfo`, `VkImageCreateInfo` are not stored in
++   #VmaAllocation object.
++-# **Handling CPU memory allocation failures.** When dynamically creating small C++
++   objects in CPU memory (not Vulkan memory), allocation failures are not checked
++   and handled gracefully, because that would complicate code significantly and
++   is usually not needed in desktop PC applications anyway.
++   Success of an allocation is just checked with an assert.
++-# **Code free of any compiler warnings.** Maintaining the library to compile and
++   work correctly on so many different platforms is hard enough. Being free of
++   any warnings, on any version of any compiler, is simply not feasible.
++   There are many preprocessor macros that make some variables unused, function parameters unreferenced,
++   or conditional expressions constant in some configurations.
++   The code of this library should not be bigger or more complicated just to silence these warnings.
++   It is recommended to disable such warnings instead.
++-# This is a C++ library with C interface. **Bindings or ports to any other programming languages** are welcome as external projects but
++   are not going to be included into this repository.
++*/
diff --git a/external/skia/windows-do-not-modify-logfont.patch.0 b/external/skia/windows-do-not-modify-logfont.patch.0
new file mode 100644
index 000000000..30c5c1e96
--- /dev/null
+++ b/external/skia/windows-do-not-modify-logfont.patch.0
@@ -0,0 +1,29 @@
+--- ./src/ports/SkFontHost_win.cpp
++++ ./src/ports/SkFontHost_win.cpp
+@@ -349,7 +349,7 @@ static bool FindByLogFont(SkTypeface* face, void* ctx) {
+  */
+ SkTypeface* SkCreateTypefaceFromLOGFONT(const LOGFONT& origLF) {
+     LOGFONT lf = origLF;
+-    make_canonical(&lf);
++//    make_canonical(&lf);
+     sk_sp<SkTypeface> face = SkTypefaceCache::FindByProcAndRef(FindByLogFont, &lf);
+     if (!face) {
+         face = LogFontTypeface::Make(lf);
+@@ -363,7 +363,7 @@ SkTypeface* SkCreateTypefaceFromLOGFONT(const LOGFONT& origLF) {
+  */
+ sk_sp<SkTypeface> SkCreateFontMemResourceTypefaceFromLOGFONT(const LOGFONT& origLF, HANDLE fontMemResource) {
+     LOGFONT lf = origLF;
+-    make_canonical(&lf);
++//    make_canonical(&lf);
+     // We'll never get a cache hit, so no point in putting this in SkTypefaceCache.
+     return FontMemResourceTypeface::Make(lf, fontMemResource);
+ }
+@@ -686,7 +686,7 @@ SkScalerContext_GDI::SkScalerContext_GDI(sk_sp<LogFontTypeface> rawTypeface,
+ 
+     LOGFONT lf = typeface->fLogFont;
+     lf.lfHeight = -SkScalarTruncToInt(gdiTextSize);
+-    lf.lfQuality = compute_quality(fRec);
++//    lf.lfQuality = compute_quality(fRec);
+     fFont = CreateFontIndirect(&lf);
+     if (!fFont) {
+         return;
diff --git a/external/skia/windows-force-unicode-api.patch.0 b/external/skia/windows-force-unicode-api.patch.0
new file mode 100644
index 000000000..f73de176d
--- /dev/null
+++ b/external/skia/windows-force-unicode-api.patch.0
@@ -0,0 +1,31 @@
+diff --git a/include/ports/SkTypeface_win.h b/include/ports/SkTypeface_win.h
+index f659adf0e9..34446fc7a1 100644
+--- ./include/ports/SkTypeface_win.h
++++ ./include/ports/SkTypeface_win.h
+@@ -26,7 +26,7 @@ typedef LOGFONTA LOGFONT;
+  *  corresponding typeface for the specified logfont. The caller is responsible
+  *  for calling unref() when it is finished.
+  */
+-SK_API SkTypeface* SkCreateTypefaceFromLOGFONT(const LOGFONT&);
++SK_API SkTypeface* SkCreateTypefaceFromLOGFONT(const LOGFONTW&);
+ 
+ /**
+  *  Copy the LOGFONT associated with this typeface into the lf parameter. Note
+@@ -34,7 +34,7 @@ SK_API SkTypeface* SkCreateTypefaceFromLOGFONT(const LOGFONT&);
+  *  not track this (the paint does).
+  *  typeface may be NULL, in which case we return the logfont for the default font.
+  */
+-SK_API void SkLOGFONTFromTypeface(const SkTypeface* typeface, LOGFONT* lf);
++SK_API void SkLOGFONTFromTypeface(const SkTypeface* typeface, LOGFONTW* lf);
+ 
+ /**
+   *  Set an optional callback to ensure that the data behind a LOGFONT is loaded.
+@@ -42,7 +42,7 @@ SK_API void SkLOGFONTFromTypeface(const SkTypeface* typeface, LOGFONT* lf);
+   *  Normally this is null, and is only required if the font data needs to be
+   *  remotely (re)loaded.
+   */
+-SK_API void SkTypeface_SetEnsureLOGFONTAccessibleProc(void (*)(const LOGFONT&));
++SK_API void SkTypeface_SetEnsureLOGFONTAccessibleProc(void (*)(const LOGFONTW&));
+ 
+ // Experimental!
+ //
diff --git a/external/skia/windows-libraries-system32.patch.1 b/external/skia/windows-libraries-system32.patch.1
new file mode 100644
index 000000000..45c0e35d1
--- /dev/null
+++ b/external/skia/windows-libraries-system32.patch.1
@@ -0,0 +1,13 @@
+diff --git a/src/ports/SkOSLibrary_win.cpp b/src/ports/SkOSLibrary_win.cpp
+index d2dcbe0af6..c288bbf177 100644
+--- a/src/ports/SkOSLibrary_win.cpp
++++ b/src/ports/SkOSLibrary_win.cpp
+@@ -11,7 +11,7 @@
+ #include "src/ports/SkOSLibrary.h"
+ 
+ void* SkLoadDynamicLibrary(const char* libraryName) {
+-    return LoadLibraryA(libraryName);
++    return LoadLibraryExA(libraryName, nullptr, LOAD_LIBRARY_SEARCH_SYSTEM32);
+ }
+ 
+ void* SkGetProcedureAddress(void* library, const char* functionName) {
diff --git a/external/skia/windows-raster-surface-no-copies.patch.1 b/external/skia/windows-raster-surface-no-copies.patch.1
new file mode 100644
index 000000000..0c5804d85
--- /dev/null
+++ b/external/skia/windows-raster-surface-no-copies.patch.1
@@ -0,0 +1,39 @@
+diff --git a/tools/sk_app/win/RasterWindowContext_win.cpp b/tools/sk_app/win/RasterWindowContext_win.cpp
+index 9548220ce6..49f1f9ed17 100644
+--- a/tools/sk_app/win/RasterWindowContext_win.cpp
++++ b/tools/sk_app/win/RasterWindowContext_win.cpp
+@@ -55,7 +55,7 @@ void RasterWindowContext_win::resize(int w, int h) {
+     fWidth = w;
+     fHeight = h;
+     fBackbufferSurface.reset();
+-    const size_t bmpSize = sizeof(BITMAPINFOHEADER) + w * h * sizeof(uint32_t);
++    const size_t bmpSize = sizeof(BITMAPINFO);
+     fSurfaceMemory.reset(bmpSize);
+     BITMAPINFO* bmpInfo = reinterpret_cast<BITMAPINFO*>(fSurfaceMemory.get());
+     ZeroMemory(bmpInfo, sizeof(BITMAPINFO));
+@@ -65,11 +65,12 @@ void RasterWindowContext_win::resize(int w, int h) {
+     bmpInfo->bmiHeader.biPlanes = 1;
+     bmpInfo->bmiHeader.biBitCount = 32;
+     bmpInfo->bmiHeader.biCompression = BI_RGB;
+-    void* pixels = bmpInfo->bmiColors;
++    // Do not use a packed DIB bitmap, SkSurface_Raster::onNewImageSnapshot() does
++    // a deep copy if it does not own the pixels.
+ 
+     SkImageInfo info = SkImageInfo::Make(w, h, fDisplayParams.fColorType, kPremul_SkAlphaType,
+                                          fDisplayParams.fColorSpace);
+-    fBackbufferSurface = SkSurface::MakeRasterDirect(info, pixels, sizeof(uint32_t) * w);
++    fBackbufferSurface = SkSurface::MakeRaster(info);
+ }
+ 
+ sk_sp<SkSurface> RasterWindowContext_win::getBackbufferSurface() { return fBackbufferSurface; }
+@@ -77,7 +78,9 @@ sk_sp<SkSurface> RasterWindowContext_win::getBackbufferSurface() { return fBackb
+ void RasterWindowContext_win::swapBuffers() {
+     BITMAPINFO* bmpInfo = reinterpret_cast<BITMAPINFO*>(fSurfaceMemory.get());
+     HDC dc = GetDC(fWnd);
+-    StretchDIBits(dc, 0, 0, fWidth, fHeight, 0, 0, fWidth, fHeight, bmpInfo->bmiColors, bmpInfo,
++    SkPixmap pixmap;
++    fBackbufferSurface->peekPixels(&pixmap);
++    StretchDIBits(dc, 0, 0, fWidth, fHeight, 0, 0, fWidth, fHeight, pixmap.addr(), bmpInfo,
+                   DIB_RGB_COLORS, SRCCOPY);
+     ReleaseDC(fWnd, dc);
+ }
diff --git a/external/skia/windows-text-gamma.patch.0 b/external/skia/windows-text-gamma.patch.0
new file mode 100644
index 000000000..624636b7d
--- /dev/null
+++ b/external/skia/windows-text-gamma.patch.0
@@ -0,0 +1,70 @@
+--- ./src/ports/SkFontHost_win.cpp.sav	2020-03-18 10:26:52.470184300 +0100
++++ ./src/ports/SkFontHost_win.cpp	2020-03-18 12:08:04.598406700 +0100
+@@ -1215,17 +1215,23 @@
+         // since the caller may require A8 for maskfilters, we can't check for BW
+         // ... until we have the caller tell us that explicitly
+         const SkGdiRGB* src = (const SkGdiRGB*)bits;
++#if defined(SK_GAMMA_APPLY_TO_A8)
+         if (fPreBlend.isApplicable()) {
+             RGBToA8<true>(src, srcRB, glyph, fPreBlend.fG);
+-        } else {
++        } else
++#endif
++        {
+             RGBToA8<false>(src, srcRB, glyph, fPreBlend.fG);
+         }
+     } else {    // LCD16
+         const SkGdiRGB* src = (const SkGdiRGB*)bits;
+         SkASSERT(SkMask::kLCD16_Format == glyph.fMaskFormat);
++#if defined(SK_GAMMA_APPLY_TO_A8)
+         if (fPreBlend.isApplicable()) {
+             RGBToLcd16<true>(src, srcRB, glyph, fPreBlend.fR, fPreBlend.fG, fPreBlend.fB);
+-        } else {
++        } else
++#endif
++        {
+             RGBToLcd16<false>(src, srcRB, glyph, fPreBlend.fR, fPreBlend.fG, fPreBlend.fB);
+         }
+     }
+--- ./src/ports/SkScalerContext_win_dw.cpp
++++ ./src/ports/SkScalerContext_win_dw.cpp
+@@ -1132,27 +1132,36 @@ void SkScalerContext_DW::generateImage(const SkGlyph& glyph) {
+         BilevelToBW(src, glyph);
+     } else if (!isLCD(fRec)) {
+         if (textureType == DWRITE_TEXTURE_ALIASED_1x1) {
++#if defined(SK_GAMMA_APPLY_TO_A8)
+             if (fPreBlend.isApplicable()) {
+                 GrayscaleToA8<true>(src, glyph, fPreBlend.fG);
+-            } else {
++            } else
++#endif
++            {
+                 GrayscaleToA8<false>(src, glyph, fPreBlend.fG);
+             }
+         } else {
++#if defined(SK_GAMMA_APPLY_TO_A8)
+             if (fPreBlend.isApplicable()) {
+                 RGBToA8<true>(src, glyph, fPreBlend.fG);
+-            } else {
++            } else
++#endif
++            {
+                 RGBToA8<false>(src, glyph, fPreBlend.fG);
+             }
+         }
+     } else {
+         SkASSERT(SkMask::kLCD16_Format == glyph.fMaskFormat);
++#if defined(SK_GAMMA_APPLY_TO_A8)
+         if (fPreBlend.isApplicable()) {
+             if (fRec.fFlags & SkScalerContext::kLCD_BGROrder_Flag) {
+                 RGBToLcd16<true, false>(src, glyph, fPreBlend.fR, fPreBlend.fG, fPreBlend.fB);
+             } else {
+                 RGBToLcd16<true, true>(src, glyph, fPreBlend.fR, fPreBlend.fG, fPreBlend.fB);
+             }
+-        } else {
++        } else
++#endif
++        {
+             if (fRec.fFlags & SkScalerContext::kLCD_BGROrder_Flag) {
+                 RGBToLcd16<false, false>(src, glyph, fPreBlend.fR, fPreBlend.fG, fPreBlend.fB);
+             } else {
diff --git a/external/skia/windows-typeface-directwrite.patch.0 b/external/skia/windows-typeface-directwrite.patch.0
new file mode 100644
index 000000000..56e8209ce
--- /dev/null
+++ b/external/skia/windows-typeface-directwrite.patch.0
@@ -0,0 +1,48 @@
+--- ./include/ports/SkTypeface_win.h
++++ ./include/ports/SkTypeface_win.h
+@@ -75,5 +75,13 @@ SK_API sk_sp<SkFontMgr> SkFontMgr_New_DirectWriteRenderer(sk_sp<SkRemotableFontM
+  */
+ SK_API sk_sp<SkRemotableFontMgr> SkRemotableFontMgr_New_DirectWrite();
+ 
++struct IDWriteFontFace;
++struct IDWriteFont;
++struct IDWriteFontFamily;
++SK_API SkTypeface* SkCreateTypefaceDirectWrite(sk_sp<SkFontMgr> fontMgr,
++                                               IDWriteFontFace* fontFace,
++                                               IDWriteFont* font,
++                                               IDWriteFontFamily* fontFamily);
++
+ #endif  // SK_BUILD_FOR_WIN
+ #endif  // SkTypeface_win_DEFINED
+--- ./src/ports/SkFontMgr_win_dw.cpp
++++ ./src/ports/SkFontMgr_win_dw.cpp
+@@ -320,6 +320,10 @@ private:
+ 
+     friend class SkFontStyleSet_DirectWrite;
+     friend class FontFallbackRenderer;
++    friend SK_API SkTypeface* SkCreateTypefaceDirectWrite(sk_sp<SkFontMgr> fontMgr,
++                                               IDWriteFontFace* fontFace,
++                                               IDWriteFont* font,
++                                               IDWriteFontFamily* fontFamily);
+ };
+ 
+ class SkFontStyleSet_DirectWrite : public SkFontStyleSet {
+@@ -1215,6 +1219,18 @@ SK_API sk_sp<SkFontMgr> SkFontMgr_New_DirectWrite(IDWriteFactory* factory,
+                                              defaultFamilyName, defaultFamilyNameLen);
+ }
+ 
++SkTypeface* SkCreateTypefaceDirectWrite(sk_sp<SkFontMgr> fontMgr,
++                                        IDWriteFontFace* fontFace,
++                                        IDWriteFont* font,
++                                        IDWriteFontFamily* fontFamily)
++{
++    SkFontMgr_DirectWrite* mgr = dynamic_cast<SkFontMgr_DirectWrite*>(fontMgr.get());
++    if(!mgr)
++        return nullptr;
++    sk_sp<SkTypeface> typeface = mgr->makeTypefaceFromDWriteFont(fontFace, font, fontFamily);
++    return typeface.release();
++}
++
+ #include "include/ports/SkFontMgr_indirect.h"
+ SK_API sk_sp<SkFontMgr> SkFontMgr_New_DirectWriteRenderer(sk_sp<SkRemotableFontMgr> proxy) {
+     sk_sp<SkFontMgr> impl(SkFontMgr_New_DirectWrite());
author	Daniel Baumann <daniel.baumann@progress-linux.org>	2024-04-07 09:06:44 +0000
committer	Daniel Baumann <daniel.baumann@progress-linux.org>	2024-04-07 09:06:44 +0000
commit	ed5640d8b587fbcfed7dd7967f3de04b37a76f26 (patch)
tree	7a5f7c6c9d02226d7471cb3cc8fbbf631b415303 /external/skia
parent	Initial commit. (diff)
download	libreoffice-cb75148ebd0135178ff46f89a30139c44f8d2040.tar.xz libreoffice-cb75148ebd0135178ff46f89a30139c44f8d2040.zip