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-rw-r--r--gfx/angle/checkout/src/image_util/copyimage.cpp74
-rw-r--r--gfx/angle/checkout/src/image_util/copyimage.h46
-rw-r--r--gfx/angle/checkout/src/image_util/copyimage.inc38
-rw-r--r--gfx/angle/checkout/src/image_util/generatemip.h34
-rw-r--r--gfx/angle/checkout/src/image_util/generatemip.inc268
-rw-r--r--gfx/angle/checkout/src/image_util/imageformats.cpp1954
-rw-r--r--gfx/angle/checkout/src/image_util/imageformats.h816
-rw-r--r--gfx/angle/checkout/src/image_util/loadimage.cpp1796
-rw-r--r--gfx/angle/checkout/src/image_util/loadimage.h976
-rw-r--r--gfx/angle/checkout/src/image_util/loadimage.inc201
-rw-r--r--gfx/angle/checkout/src/image_util/loadimage_astc.cpp84
-rw-r--r--gfx/angle/checkout/src/image_util/loadimage_etc.cpp1994
-rw-r--r--gfx/angle/checkout/src/image_util/loadimage_paletted.cpp158
13 files changed, 8439 insertions, 0 deletions
diff --git a/gfx/angle/checkout/src/image_util/copyimage.cpp b/gfx/angle/checkout/src/image_util/copyimage.cpp
new file mode 100644
index 0000000000..b5c2773e21
--- /dev/null
+++ b/gfx/angle/checkout/src/image_util/copyimage.cpp
@@ -0,0 +1,74 @@
+//
+// Copyright 2013 The ANGLE Project Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+//
+
+// copyimage.cpp: Defines image copying functions
+
+#include "image_util/copyimage.h"
+
+namespace angle
+{
+
+namespace
+{
+inline uint32_t SwizzleBGRAToRGBA(uint32_t argb)
+{
+ return ((argb & 0x000000FF) << 16) | // Move BGRA blue to RGBA blue
+ ((argb & 0x00FF0000) >> 16) | // Move BGRA red to RGBA red
+ ((argb & 0xFF00FF00)); // Keep alpha and green
+}
+
+void CopyBGRA8ToRGBA8Fast(const uint8_t *source,
+ int srcYAxisPitch,
+ uint8_t *dest,
+ int destYAxisPitch,
+ int destWidth,
+ int destHeight)
+{
+ for (int y = 0; y < destHeight; ++y)
+ {
+ const uint32_t *src32 = reinterpret_cast<const uint32_t *>(source + y * srcYAxisPitch);
+ uint32_t *dest32 = reinterpret_cast<uint32_t *>(dest + y * destYAxisPitch);
+ const uint32_t *end32 = src32 + destWidth;
+ while (src32 != end32)
+ {
+ *dest32++ = SwizzleBGRAToRGBA(*src32++);
+ }
+ }
+}
+} // namespace
+
+void CopyBGRA8ToRGBA8(const uint8_t *source,
+ int srcXAxisPitch,
+ int srcYAxisPitch,
+ uint8_t *dest,
+ int destXAxisPitch,
+ int destYAxisPitch,
+ int destWidth,
+ int destHeight)
+{
+ if (srcXAxisPitch == 4 && destXAxisPitch == 4)
+ {
+ CopyBGRA8ToRGBA8Fast(source, srcYAxisPitch, dest, destYAxisPitch, destWidth, destHeight);
+ return;
+ }
+
+ for (int y = 0; y < destHeight; ++y)
+ {
+ uint8_t *dst = dest + y * destYAxisPitch;
+ const uint8_t *src = source + y * srcYAxisPitch;
+ const uint8_t *end = src + destWidth * srcXAxisPitch;
+
+ while (src != end)
+ {
+ *reinterpret_cast<uint32_t *>(dst) =
+ SwizzleBGRAToRGBA(*reinterpret_cast<const uint32_t *>(src));
+ src += srcXAxisPitch;
+ dst += destXAxisPitch;
+ }
+ }
+}
+
+} // namespace angle
diff --git a/gfx/angle/checkout/src/image_util/copyimage.h b/gfx/angle/checkout/src/image_util/copyimage.h
new file mode 100644
index 0000000000..9825b86f98
--- /dev/null
+++ b/gfx/angle/checkout/src/image_util/copyimage.h
@@ -0,0 +1,46 @@
+//
+// Copyright 2013 The ANGLE Project Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+//
+
+// copyimage.h: Defines image copying functions
+
+#ifndef IMAGEUTIL_COPYIMAGE_H_
+#define IMAGEUTIL_COPYIMAGE_H_
+
+#include "common/Color.h"
+
+#include "image_util/imageformats.h"
+
+#include <stdint.h>
+
+namespace angle
+{
+
+template <typename sourceType, typename colorDataType>
+void ReadColor(const uint8_t *source, uint8_t *dest);
+
+template <typename destType, typename colorDataType>
+void WriteColor(const uint8_t *source, uint8_t *dest);
+
+template <typename SourceType>
+void ReadDepthStencil(const uint8_t *source, uint8_t *dest);
+
+template <typename DestType>
+void WriteDepthStencil(const uint8_t *source, uint8_t *dest);
+
+void CopyBGRA8ToRGBA8(const uint8_t *source,
+ int srcXAxisPitch,
+ int srcYAxisPitch,
+ uint8_t *dest,
+ int destXAxisPitch,
+ int destYAxisPitch,
+ int destWidth,
+ int destHeight);
+
+} // namespace angle
+
+#include "copyimage.inc"
+
+#endif // IMAGEUTIL_COPYIMAGE_H_
diff --git a/gfx/angle/checkout/src/image_util/copyimage.inc b/gfx/angle/checkout/src/image_util/copyimage.inc
new file mode 100644
index 0000000000..42ad6b9421
--- /dev/null
+++ b/gfx/angle/checkout/src/image_util/copyimage.inc
@@ -0,0 +1,38 @@
+//
+// Copyright 2014 The ANGLE Project Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+//
+
+// copyimage.inc: Defines image copying functions
+
+namespace angle
+{
+template <typename sourceType, typename colorDataType>
+void ReadColor(const uint8_t *source, uint8_t *dest)
+{
+ sourceType::readColor(reinterpret_cast<Color<colorDataType>*>(dest),
+ reinterpret_cast<const sourceType*>(source));
+}
+
+template <typename destType, typename colorDataType>
+void WriteColor(const uint8_t *source, uint8_t *dest)
+{
+ destType::writeColor(reinterpret_cast<destType*>(dest),
+ reinterpret_cast<const Color<colorDataType>*>(source));
+}
+
+template <typename SourceType>
+void ReadDepthStencil(const uint8_t *source, uint8_t *dest)
+{
+ SourceType::ReadDepthStencil(reinterpret_cast<DepthStencil *>(dest),
+ reinterpret_cast<const SourceType *>(source));
+}
+
+template <typename DestType>
+void WriteDepthStencil(const uint8_t *source, uint8_t *dest)
+{
+ DestType::WriteDepthStencil(reinterpret_cast<DestType *>(dest),
+ reinterpret_cast<const DepthStencil *>(source));
+}
+} // namespace angle
diff --git a/gfx/angle/checkout/src/image_util/generatemip.h b/gfx/angle/checkout/src/image_util/generatemip.h
new file mode 100644
index 0000000000..523c296298
--- /dev/null
+++ b/gfx/angle/checkout/src/image_util/generatemip.h
@@ -0,0 +1,34 @@
+//
+// Copyright 2002 The ANGLE Project Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+//
+
+// generatemip.h: Defines the GenerateMip function, templated on the format
+// type of the image for which mip levels are being generated.
+
+#ifndef IMAGEUTIL_GENERATEMIP_H_
+#define IMAGEUTIL_GENERATEMIP_H_
+
+#include <stddef.h>
+#include <stdint.h>
+
+namespace angle
+{
+
+template <typename T>
+inline void GenerateMip(size_t sourceWidth,
+ size_t sourceHeight,
+ size_t sourceDepth,
+ const uint8_t *sourceData,
+ size_t sourceRowPitch,
+ size_t sourceDepthPitch,
+ uint8_t *destData,
+ size_t destRowPitch,
+ size_t destDepthPitch);
+
+} // namespace angle
+
+#include "generatemip.inc"
+
+#endif // IMAGEUTIL_GENERATEMIP_H_
diff --git a/gfx/angle/checkout/src/image_util/generatemip.inc b/gfx/angle/checkout/src/image_util/generatemip.inc
new file mode 100644
index 0000000000..7a7f5abe9c
--- /dev/null
+++ b/gfx/angle/checkout/src/image_util/generatemip.inc
@@ -0,0 +1,268 @@
+//
+// Copyright 2015 The ANGLE Project Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+//
+
+// generatemip.inc: Defines the GenerateMip function, templated on the format
+// type of the image for which mip levels are being generated.
+
+#include "common/mathutil.h"
+
+#include "image_util/imageformats.h"
+
+namespace angle
+{
+
+namespace priv
+{
+
+template <typename T>
+static inline T *GetPixel(uint8_t *data, size_t x, size_t y, size_t z, size_t rowPitch, size_t depthPitch)
+{
+ return reinterpret_cast<T*>(data + (x * sizeof(T)) + (y * rowPitch) + (z * depthPitch));
+}
+
+template <typename T>
+static inline const T *GetPixel(const uint8_t *data, size_t x, size_t y, size_t z, size_t rowPitch, size_t depthPitch)
+{
+ return reinterpret_cast<const T*>(data + (x * sizeof(T)) + (y * rowPitch) + (z * depthPitch));
+}
+
+template <typename T>
+static void GenerateMip_Y(size_t sourceWidth, size_t sourceHeight, size_t sourceDepth,
+ const uint8_t *sourceData, size_t sourceRowPitch, size_t sourceDepthPitch,
+ size_t destWidth, size_t destHeight, size_t destDepth,
+ uint8_t *destData, size_t destRowPitch, size_t destDepthPitch)
+{
+ ASSERT(sourceWidth == 1);
+ ASSERT(sourceHeight > 1);
+ ASSERT(sourceDepth == 1);
+
+ for (size_t y = 0; y < destHeight; y++)
+ {
+ const T *src0 = GetPixel<T>(sourceData, 0, y * 2, 0, sourceRowPitch, sourceDepthPitch);
+ const T *src1 = GetPixel<T>(sourceData, 0, y * 2 + 1, 0, sourceRowPitch, sourceDepthPitch);
+ T *dst = GetPixel<T>(destData, 0, y, 0, destRowPitch, destDepthPitch);
+
+ T::average(dst, src0, src1);
+ }
+}
+
+template <typename T>
+static void GenerateMip_X(size_t sourceWidth, size_t sourceHeight, size_t sourceDepth,
+ const uint8_t *sourceData, size_t sourceRowPitch, size_t sourceDepthPitch,
+ size_t destWidth, size_t destHeight, size_t destDepth,
+ uint8_t *destData, size_t destRowPitch, size_t destDepthPitch)
+{
+ ASSERT(sourceWidth > 1);
+ ASSERT(sourceHeight == 1);
+ ASSERT(sourceDepth == 1);
+
+ for (size_t x = 0; x < destWidth; x++)
+ {
+ const T *src0 = GetPixel<T>(sourceData, x * 2, 0, 0, sourceRowPitch, sourceDepthPitch);
+ const T *src1 = GetPixel<T>(sourceData, x * 2 + 1, 0, 0, sourceRowPitch, sourceDepthPitch);
+ T *dst = GetPixel<T>(destData, x, 0, 0, destRowPitch, destDepthPitch);
+
+ T::average(dst, src0, src1);
+ }
+}
+
+template <typename T>
+static void GenerateMip_Z(size_t sourceWidth, size_t sourceHeight, size_t sourceDepth,
+ const uint8_t *sourceData, size_t sourceRowPitch, size_t sourceDepthPitch,
+ size_t destWidth, size_t destHeight, size_t destDepth,
+ uint8_t *destData, size_t destRowPitch, size_t destDepthPitch)
+{
+ ASSERT(sourceWidth == 1);
+ ASSERT(sourceHeight == 1);
+ ASSERT(sourceDepth > 1);
+
+ for (size_t z = 0; z < destDepth; z++)
+ {
+ const T *src0 = GetPixel<T>(sourceData, 0, 0, z * 2, sourceRowPitch, sourceDepthPitch);
+ const T *src1 = GetPixel<T>(sourceData, 0, 0, z * 2 + 1, sourceRowPitch, sourceDepthPitch);
+ T *dst = GetPixel<T>(destData, 0, 0, z, destRowPitch, destDepthPitch);
+
+ T::average(dst, src0, src1);
+ }
+}
+
+template <typename T>
+static void GenerateMip_XY(size_t sourceWidth, size_t sourceHeight, size_t sourceDepth,
+ const uint8_t *sourceData, size_t sourceRowPitch, size_t sourceDepthPitch,
+ size_t destWidth, size_t destHeight, size_t destDepth,
+ uint8_t *destData, size_t destRowPitch, size_t destDepthPitch)
+{
+ ASSERT(sourceWidth > 1);
+ ASSERT(sourceHeight > 1);
+ ASSERT(sourceDepth == 1);
+
+ for (size_t y = 0; y < destHeight; y++)
+ {
+ for (size_t x = 0; x < destWidth; x++)
+ {
+ const T *src0 = GetPixel<T>(sourceData, x * 2, y * 2, 0, sourceRowPitch, sourceDepthPitch);
+ const T *src1 = GetPixel<T>(sourceData, x * 2, y * 2 + 1, 0, sourceRowPitch, sourceDepthPitch);
+ const T *src2 = GetPixel<T>(sourceData, x * 2 + 1, y * 2, 0, sourceRowPitch, sourceDepthPitch);
+ const T *src3 = GetPixel<T>(sourceData, x * 2 + 1, y * 2 + 1, 0, sourceRowPitch, sourceDepthPitch);
+ T *dst = GetPixel<T>(destData, x, y, 0, destRowPitch, destDepthPitch);
+
+ T tmp0, tmp1;
+
+ T::average(&tmp0, src0, src1);
+ T::average(&tmp1, src2, src3);
+ T::average(dst, &tmp0, &tmp1);
+ }
+ }
+}
+
+template <typename T>
+static void GenerateMip_YZ(size_t sourceWidth, size_t sourceHeight, size_t sourceDepth,
+ const uint8_t *sourceData, size_t sourceRowPitch, size_t sourceDepthPitch,
+ size_t destWidth, size_t destHeight, size_t destDepth,
+ uint8_t *destData, size_t destRowPitch, size_t destDepthPitch)
+{
+ ASSERT(sourceWidth == 1);
+ ASSERT(sourceHeight > 1);
+ ASSERT(sourceDepth > 1);
+
+ for (size_t z = 0; z < destDepth; z++)
+ {
+ for (size_t y = 0; y < destHeight; y++)
+ {
+ const T *src0 = GetPixel<T>(sourceData, 0, y * 2, z * 2, sourceRowPitch, sourceDepthPitch);
+ const T *src1 = GetPixel<T>(sourceData, 0, y * 2, z * 2 + 1, sourceRowPitch, sourceDepthPitch);
+ const T *src2 = GetPixel<T>(sourceData, 0, y * 2 + 1, z * 2, sourceRowPitch, sourceDepthPitch);
+ const T *src3 = GetPixel<T>(sourceData, 0, y * 2 + 1, z * 2 + 1, sourceRowPitch, sourceDepthPitch);
+ T *dst = GetPixel<T>(destData, 0, y, z, destRowPitch, destDepthPitch);
+
+ T tmp0, tmp1;
+
+ T::average(&tmp0, src0, src1);
+ T::average(&tmp1, src2, src3);
+ T::average(dst, &tmp0, &tmp1);
+ }
+ }
+}
+
+template <typename T>
+static void GenerateMip_XZ(size_t sourceWidth, size_t sourceHeight, size_t sourceDepth,
+ const uint8_t *sourceData, size_t sourceRowPitch, size_t sourceDepthPitch,
+ size_t destWidth, size_t destHeight, size_t destDepth,
+ uint8_t *destData, size_t destRowPitch, size_t destDepthPitch)
+{
+ ASSERT(sourceWidth > 1);
+ ASSERT(sourceHeight == 1);
+ ASSERT(sourceDepth > 1);
+
+ for (size_t z = 0; z < destDepth; z++)
+ {
+ for (size_t x = 0; x < destWidth; x++)
+ {
+ const T *src0 = GetPixel<T>(sourceData, x * 2, 0, z * 2, sourceRowPitch, sourceDepthPitch);
+ const T *src1 = GetPixel<T>(sourceData, x * 2, 0, z * 2 + 1, sourceRowPitch, sourceDepthPitch);
+ const T *src2 = GetPixel<T>(sourceData, x * 2 + 1, 0, z * 2, sourceRowPitch, sourceDepthPitch);
+ const T *src3 = GetPixel<T>(sourceData, x * 2 + 1, 0, z * 2 + 1, sourceRowPitch, sourceDepthPitch);
+ T *dst = GetPixel<T>(destData, x, 0, z, destRowPitch, destDepthPitch);
+
+ T tmp0, tmp1;
+
+ T::average(&tmp0, src0, src1);
+ T::average(&tmp1, src2, src3);
+ T::average(dst, &tmp0, &tmp1);
+ }
+ }
+}
+
+template <typename T>
+static void GenerateMip_XYZ(size_t sourceWidth, size_t sourceHeight, size_t sourceDepth,
+ const uint8_t *sourceData, size_t sourceRowPitch, size_t sourceDepthPitch,
+ size_t destWidth, size_t destHeight, size_t destDepth,
+ uint8_t *destData, size_t destRowPitch, size_t destDepthPitch)
+{
+ ASSERT(sourceWidth > 1);
+ ASSERT(sourceHeight > 1);
+ ASSERT(sourceDepth > 1);
+
+ for (size_t z = 0; z < destDepth; z++)
+ {
+ for (size_t y = 0; y < destHeight; y++)
+ {
+ for (size_t x = 0; x < destWidth; x++)
+ {
+ const T *src0 = GetPixel<T>(sourceData, x * 2, y * 2, z * 2, sourceRowPitch, sourceDepthPitch);
+ const T *src1 = GetPixel<T>(sourceData, x * 2, y * 2, z * 2 + 1, sourceRowPitch, sourceDepthPitch);
+ const T *src2 = GetPixel<T>(sourceData, x * 2, y * 2 + 1, z * 2, sourceRowPitch, sourceDepthPitch);
+ const T *src3 = GetPixel<T>(sourceData, x * 2, y * 2 + 1, z * 2 + 1, sourceRowPitch, sourceDepthPitch);
+ const T *src4 = GetPixel<T>(sourceData, x * 2 + 1, y * 2, z * 2, sourceRowPitch, sourceDepthPitch);
+ const T *src5 = GetPixel<T>(sourceData, x * 2 + 1, y * 2, z * 2 + 1, sourceRowPitch, sourceDepthPitch);
+ const T *src6 = GetPixel<T>(sourceData, x * 2 + 1, y * 2 + 1, z * 2, sourceRowPitch, sourceDepthPitch);
+ const T *src7 = GetPixel<T>(sourceData, x * 2 + 1, y * 2 + 1, z * 2 + 1, sourceRowPitch, sourceDepthPitch);
+ T *dst = GetPixel<T>(destData, x, y, z, destRowPitch, destDepthPitch);
+
+ T tmp0, tmp1, tmp2, tmp3, tmp4, tmp5;
+
+ T::average(&tmp0, src0, src1);
+ T::average(&tmp1, src2, src3);
+ T::average(&tmp2, src4, src5);
+ T::average(&tmp3, src6, src7);
+
+ T::average(&tmp4, &tmp0, &tmp1);
+ T::average(&tmp5, &tmp2, &tmp3);
+
+ T::average(dst, &tmp4, &tmp5);
+ }
+ }
+ }
+}
+
+
+typedef void (*MipGenerationFunction)(size_t sourceWidth, size_t sourceHeight, size_t sourceDepth,
+ const uint8_t *sourceData, size_t sourceRowPitch, size_t sourceDepthPitch,
+ size_t destWidth, size_t destHeight, size_t destDepth,
+ uint8_t *destData, size_t destRowPitch, size_t destDepthPitch);
+
+template <typename T>
+static MipGenerationFunction GetMipGenerationFunction(size_t sourceWidth, size_t sourceHeight, size_t sourceDepth)
+{
+ uint8_t index = ((sourceWidth > 1) ? 1 : 0) |
+ ((sourceHeight > 1) ? 2 : 0) |
+ ((sourceDepth > 1) ? 4 : 0);
+
+ switch (index)
+ {
+ case 0: return nullptr;
+ case 1: return GenerateMip_X<T>; // W x 1 x 1
+ case 2: return GenerateMip_Y<T>; // 1 x H x 1
+ case 3: return GenerateMip_XY<T>; // W x H x 1
+ case 4: return GenerateMip_Z<T>; // 1 x 1 x D
+ case 5: return GenerateMip_XZ<T>; // W x 1 x D
+ case 6: return GenerateMip_YZ<T>; // 1 x H x D
+ case 7: return GenerateMip_XYZ<T>; // W x H x D
+ }
+
+ UNREACHABLE();
+ return nullptr;
+}
+
+} // namespace priv
+
+template <typename T>
+inline void GenerateMip(size_t sourceWidth, size_t sourceHeight, size_t sourceDepth,
+ const uint8_t *sourceData, size_t sourceRowPitch, size_t sourceDepthPitch,
+ uint8_t *destData, size_t destRowPitch, size_t destDepthPitch)
+{
+ size_t mipWidth = std::max<size_t>(1, sourceWidth >> 1);
+ size_t mipHeight = std::max<size_t>(1, sourceHeight >> 1);
+ size_t mipDepth = std::max<size_t>(1, sourceDepth >> 1);
+
+ priv::MipGenerationFunction generationFunction = priv::GetMipGenerationFunction<T>(sourceWidth, sourceHeight, sourceDepth);
+ ASSERT(generationFunction != nullptr);
+
+ generationFunction(sourceWidth, sourceHeight, sourceDepth, sourceData, sourceRowPitch, sourceDepthPitch,
+ mipWidth, mipHeight, mipDepth, destData, destRowPitch, destDepthPitch);
+}
+
+} // namespace angle
diff --git a/gfx/angle/checkout/src/image_util/imageformats.cpp b/gfx/angle/checkout/src/image_util/imageformats.cpp
new file mode 100644
index 0000000000..368b6d95d7
--- /dev/null
+++ b/gfx/angle/checkout/src/image_util/imageformats.cpp
@@ -0,0 +1,1954 @@
+//
+// Copyright 2016 The ANGLE Project Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+//
+
+// imageformats.cpp: Defines image format types with functions for mip generation
+// and copying.
+
+#include "image_util/imageformats.h"
+
+#include "common/mathutil.h"
+
+namespace angle
+{
+
+void L8::readColor(gl::ColorF *dst, const L8 *src)
+{
+ const float lum = gl::normalizedToFloat(src->L);
+ dst->red = lum;
+ dst->green = lum;
+ dst->blue = lum;
+ dst->alpha = 1.0f;
+}
+
+void L8::writeColor(L8 *dst, const gl::ColorF *src)
+{
+ dst->L = gl::floatToNormalized<uint8_t>(src->red);
+}
+
+void L8::average(L8 *dst, const L8 *src1, const L8 *src2)
+{
+ dst->L = gl::average(src1->L, src2->L);
+}
+
+void R8::readColor(gl::ColorUI *dst, const R8 *src)
+{
+ dst->red = src->R;
+ dst->green = 0;
+ dst->blue = 0;
+ dst->alpha = 1;
+}
+
+void R8::readColor(gl::ColorF *dst, const R8 *src)
+{
+ dst->red = gl::normalizedToFloat(src->R);
+ dst->green = 0.0f;
+ dst->blue = 0.0f;
+ dst->alpha = 1.0f;
+}
+
+void R8::writeColor(R8 *dst, const gl::ColorUI *src)
+{
+ dst->R = static_cast<uint8_t>(src->red);
+}
+
+void R8::writeColor(R8 *dst, const gl::ColorF *src)
+{
+ dst->R = gl::floatToNormalized<uint8_t>(src->red);
+}
+
+void R8::average(R8 *dst, const R8 *src1, const R8 *src2)
+{
+ dst->R = gl::average(src1->R, src2->R);
+}
+
+void A8::readColor(gl::ColorF *dst, const A8 *src)
+{
+ dst->red = 0.0f;
+ dst->green = 0.0f;
+ dst->blue = 0.0f;
+ dst->alpha = gl::normalizedToFloat(src->A);
+}
+
+void A8::writeColor(A8 *dst, const gl::ColorF *src)
+{
+ dst->A = gl::floatToNormalized<uint8_t>(src->alpha);
+}
+
+void A8::average(A8 *dst, const A8 *src1, const A8 *src2)
+{
+ dst->A = gl::average(src1->A, src2->A);
+}
+
+void L8A8::readColor(gl::ColorF *dst, const L8A8 *src)
+{
+ const float lum = gl::normalizedToFloat(src->L);
+ dst->red = lum;
+ dst->green = lum;
+ dst->blue = lum;
+ dst->alpha = gl::normalizedToFloat(src->A);
+}
+
+void L8A8::writeColor(L8A8 *dst, const gl::ColorF *src)
+{
+ dst->L = gl::floatToNormalized<uint8_t>(src->red);
+ dst->A = gl::floatToNormalized<uint8_t>(src->alpha);
+}
+
+void L8A8::average(L8A8 *dst, const L8A8 *src1, const L8A8 *src2)
+{
+ *(uint16_t *)dst = (((*(uint16_t *)src1 ^ *(uint16_t *)src2) & 0xFEFE) >> 1) +
+ (*(uint16_t *)src1 & *(uint16_t *)src2);
+}
+
+void A8L8::readColor(gl::ColorF *dst, const A8L8 *src)
+{
+ const float lum = gl::normalizedToFloat(src->L);
+ dst->red = lum;
+ dst->green = lum;
+ dst->blue = lum;
+ dst->alpha = gl::normalizedToFloat(src->A);
+}
+
+void A8L8::writeColor(A8L8 *dst, const gl::ColorF *src)
+{
+ dst->L = gl::floatToNormalized<uint8_t>(src->red);
+ dst->A = gl::floatToNormalized<uint8_t>(src->alpha);
+}
+
+void A8L8::average(A8L8 *dst, const A8L8 *src1, const A8L8 *src2)
+{
+ *(uint16_t *)dst = (((*(uint16_t *)src1 ^ *(uint16_t *)src2) & 0xFEFE) >> 1) +
+ (*(uint16_t *)src1 & *(uint16_t *)src2);
+}
+
+void R8G8::readColor(gl::ColorUI *dst, const R8G8 *src)
+{
+ dst->red = src->R;
+ dst->green = src->G;
+ dst->blue = 0;
+ dst->alpha = 1;
+}
+
+void R8G8::readColor(gl::ColorF *dst, const R8G8 *src)
+{
+ dst->red = gl::normalizedToFloat(src->R);
+ dst->green = gl::normalizedToFloat(src->G);
+ dst->blue = 0.0f;
+ dst->alpha = 1.0f;
+}
+
+void R8G8::writeColor(R8G8 *dst, const gl::ColorUI *src)
+{
+ dst->R = static_cast<uint8_t>(src->red);
+ dst->G = static_cast<uint8_t>(src->green);
+}
+
+void R8G8::writeColor(R8G8 *dst, const gl::ColorF *src)
+{
+ dst->R = gl::floatToNormalized<uint8_t>(src->red);
+ dst->G = gl::floatToNormalized<uint8_t>(src->green);
+}
+
+void R8G8::average(R8G8 *dst, const R8G8 *src1, const R8G8 *src2)
+{
+ *(uint16_t *)dst = (((*(uint16_t *)src1 ^ *(uint16_t *)src2) & 0xFEFE) >> 1) +
+ (*(uint16_t *)src1 & *(uint16_t *)src2);
+}
+
+void R8G8B8::readColor(gl::ColorUI *dst, const R8G8B8 *src)
+{
+ dst->red = src->R;
+ dst->green = src->G;
+ dst->blue = src->G;
+ dst->alpha = 1;
+}
+
+void R8G8B8::readColor(gl::ColorF *dst, const R8G8B8 *src)
+{
+ dst->red = gl::normalizedToFloat(src->R);
+ dst->green = gl::normalizedToFloat(src->G);
+ dst->blue = gl::normalizedToFloat(src->B);
+ dst->alpha = 1.0f;
+}
+
+void R8G8B8::writeColor(R8G8B8 *dst, const gl::ColorUI *src)
+{
+ dst->R = static_cast<uint8_t>(src->red);
+ dst->G = static_cast<uint8_t>(src->green);
+ dst->B = static_cast<uint8_t>(src->blue);
+}
+
+void R8G8B8::writeColor(R8G8B8 *dst, const gl::ColorF *src)
+{
+ dst->R = gl::floatToNormalized<uint8_t>(src->red);
+ dst->G = gl::floatToNormalized<uint8_t>(src->green);
+ dst->B = gl::floatToNormalized<uint8_t>(src->blue);
+}
+
+void R8G8B8::average(R8G8B8 *dst, const R8G8B8 *src1, const R8G8B8 *src2)
+{
+ dst->R = gl::average(src1->R, src2->R);
+ dst->G = gl::average(src1->G, src2->G);
+ dst->B = gl::average(src1->B, src2->B);
+}
+
+void B8G8R8::readColor(gl::ColorUI *dst, const B8G8R8 *src)
+{
+ dst->red = src->R;
+ dst->green = src->G;
+ dst->blue = src->G;
+ dst->alpha = 1;
+}
+
+void B8G8R8::readColor(gl::ColorF *dst, const B8G8R8 *src)
+{
+ dst->red = gl::normalizedToFloat(src->R);
+ dst->green = gl::normalizedToFloat(src->G);
+ dst->blue = gl::normalizedToFloat(src->B);
+ dst->alpha = 1.0f;
+}
+
+void B8G8R8::writeColor(B8G8R8 *dst, const gl::ColorUI *src)
+{
+ dst->R = static_cast<uint8_t>(src->red);
+ dst->G = static_cast<uint8_t>(src->green);
+ dst->B = static_cast<uint8_t>(src->blue);
+}
+
+void B8G8R8::writeColor(B8G8R8 *dst, const gl::ColorF *src)
+{
+ dst->R = gl::floatToNormalized<uint8_t>(src->red);
+ dst->G = gl::floatToNormalized<uint8_t>(src->green);
+ dst->B = gl::floatToNormalized<uint8_t>(src->blue);
+}
+
+void B8G8R8::average(B8G8R8 *dst, const B8G8R8 *src1, const B8G8R8 *src2)
+{
+ dst->R = gl::average(src1->R, src2->R);
+ dst->G = gl::average(src1->G, src2->G);
+ dst->B = gl::average(src1->B, src2->B);
+}
+
+void R5G6B5::readColor(gl::ColorF *dst, const R5G6B5 *src)
+{
+ dst->red = gl::normalizedToFloat<5>(gl::getShiftedData<5, 11>(src->RGB));
+ dst->green = gl::normalizedToFloat<6>(gl::getShiftedData<6, 5>(src->RGB));
+ dst->blue = gl::normalizedToFloat<5>(gl::getShiftedData<5, 0>(src->RGB));
+ dst->alpha = 1.0f;
+}
+
+void R5G6B5::writeColor(R5G6B5 *dst, const gl::ColorF *src)
+{
+ dst->RGB = gl::shiftData<5, 11>(gl::floatToNormalized<5, uint16_t>(src->red)) |
+ gl::shiftData<6, 5>(gl::floatToNormalized<6, uint16_t>(src->green)) |
+ gl::shiftData<5, 0>(gl::floatToNormalized<5, uint16_t>(src->blue));
+}
+
+void R5G6B5::average(R5G6B5 *dst, const R5G6B5 *src1, const R5G6B5 *src2)
+{
+ dst->RGB = gl::shiftData<5, 11>(gl::average(gl::getShiftedData<5, 11>(src1->RGB),
+ gl::getShiftedData<5, 11>(src2->RGB))) |
+ gl::shiftData<6, 5>(gl::average(gl::getShiftedData<6, 5>(src1->RGB),
+ gl::getShiftedData<6, 5>(src2->RGB))) |
+ gl::shiftData<5, 0>(gl::average(gl::getShiftedData<5, 0>(src1->RGB),
+ gl::getShiftedData<5, 0>(src2->RGB)));
+}
+
+void B5G6R5::readColor(gl::ColorF *dst, const B5G6R5 *src)
+{
+ dst->red = gl::normalizedToFloat<5>(gl::getShiftedData<5, 11>(src->BGR));
+ dst->green = gl::normalizedToFloat<6>(gl::getShiftedData<6, 5>(src->BGR));
+ dst->blue = gl::normalizedToFloat<5>(gl::getShiftedData<5, 0>(src->BGR));
+ dst->alpha = 1.0f;
+}
+
+void B5G6R5::writeColor(B5G6R5 *dst, const gl::ColorF *src)
+{
+ dst->BGR = gl::shiftData<5, 0>(gl::floatToNormalized<5, unsigned short>(src->blue)) |
+ gl::shiftData<6, 5>(gl::floatToNormalized<6, unsigned short>(src->green)) |
+ gl::shiftData<5, 11>(gl::floatToNormalized<5, unsigned short>(src->red));
+}
+
+void B5G6R5::average(B5G6R5 *dst, const B5G6R5 *src1, const B5G6R5 *src2)
+{
+ dst->BGR = gl::shiftData<5, 11>(gl::average(gl::getShiftedData<5, 11>(src1->BGR),
+ gl::getShiftedData<5, 11>(src2->BGR))) |
+ gl::shiftData<6, 5>(gl::average(gl::getShiftedData<6, 5>(src1->BGR),
+ gl::getShiftedData<6, 5>(src2->BGR))) |
+ gl::shiftData<5, 0>(gl::average(gl::getShiftedData<5, 0>(src1->BGR),
+ gl::getShiftedData<5, 0>(src2->BGR)));
+}
+
+void A8R8G8B8::readColor(gl::ColorUI *dst, const A8R8G8B8 *src)
+{
+ dst->red = src->R;
+ dst->green = src->G;
+ dst->blue = src->B;
+ dst->alpha = src->A;
+}
+
+void A8R8G8B8::readColor(gl::ColorF *dst, const A8R8G8B8 *src)
+{
+ dst->red = gl::normalizedToFloat(src->R);
+ dst->green = gl::normalizedToFloat(src->G);
+ dst->blue = gl::normalizedToFloat(src->B);
+ dst->alpha = gl::normalizedToFloat(src->A);
+}
+
+void A8R8G8B8::writeColor(A8R8G8B8 *dst, const gl::ColorUI *src)
+{
+ dst->R = static_cast<uint8_t>(src->red);
+ dst->G = static_cast<uint8_t>(src->green);
+ dst->B = static_cast<uint8_t>(src->blue);
+ dst->A = static_cast<uint8_t>(src->alpha);
+}
+
+void A8R8G8B8::writeColor(A8R8G8B8 *dst, const gl::ColorF *src)
+{
+ dst->R = gl::floatToNormalized<uint8_t>(src->red);
+ dst->G = gl::floatToNormalized<uint8_t>(src->green);
+ dst->B = gl::floatToNormalized<uint8_t>(src->blue);
+ dst->A = gl::floatToNormalized<uint8_t>(src->alpha);
+}
+
+void A8R8G8B8::average(A8R8G8B8 *dst, const A8R8G8B8 *src1, const A8R8G8B8 *src2)
+{
+ *(uint32_t *)dst = (((*(uint32_t *)src1 ^ *(uint32_t *)src2) & 0xFEFEFEFE) >> 1) +
+ (*(uint32_t *)src1 & *(uint32_t *)src2);
+}
+
+void R8G8B8A8::readColor(gl::ColorUI *dst, const R8G8B8A8 *src)
+{
+ dst->red = src->R;
+ dst->green = src->G;
+ dst->blue = src->B;
+ dst->alpha = src->A;
+}
+
+void R8G8B8A8::readColor(gl::ColorF *dst, const R8G8B8A8 *src)
+{
+ dst->red = gl::normalizedToFloat(src->R);
+ dst->green = gl::normalizedToFloat(src->G);
+ dst->blue = gl::normalizedToFloat(src->B);
+ dst->alpha = gl::normalizedToFloat(src->A);
+}
+
+void R8G8B8A8::writeColor(R8G8B8A8 *dst, const gl::ColorUI *src)
+{
+ dst->R = static_cast<uint8_t>(src->red);
+ dst->G = static_cast<uint8_t>(src->green);
+ dst->B = static_cast<uint8_t>(src->blue);
+ dst->A = static_cast<uint8_t>(src->alpha);
+}
+
+void R8G8B8A8::writeColor(R8G8B8A8 *dst, const gl::ColorF *src)
+{
+ dst->R = gl::floatToNormalized<uint8_t>(src->red);
+ dst->G = gl::floatToNormalized<uint8_t>(src->green);
+ dst->B = gl::floatToNormalized<uint8_t>(src->blue);
+ dst->A = gl::floatToNormalized<uint8_t>(src->alpha);
+}
+
+void R8G8B8A8::average(R8G8B8A8 *dst, const R8G8B8A8 *src1, const R8G8B8A8 *src2)
+{
+ *(uint32_t *)dst = (((*(uint32_t *)src1 ^ *(uint32_t *)src2) & 0xFEFEFEFE) >> 1) +
+ (*(uint32_t *)src1 & *(uint32_t *)src2);
+}
+
+void R8G8B8A8SRGB::readColor(gl::ColorF *dst, const R8G8B8A8SRGB *src)
+{
+ dst->red = gl::normalizedToFloat(src->R);
+ dst->green = gl::normalizedToFloat(src->G);
+ dst->blue = gl::normalizedToFloat(src->B);
+ dst->alpha = gl::normalizedToFloat(src->A);
+}
+
+void R8G8B8A8SRGB::writeColor(R8G8B8A8SRGB *dst, const gl::ColorF *src)
+{
+ dst->R = gl::floatToNormalized<uint8_t>(src->red);
+ dst->G = gl::floatToNormalized<uint8_t>(src->green);
+ dst->B = gl::floatToNormalized<uint8_t>(src->blue);
+ dst->A = gl::floatToNormalized<uint8_t>(src->alpha);
+}
+
+void R8G8B8A8SRGB::average(R8G8B8A8SRGB *dst, const R8G8B8A8SRGB *src1, const R8G8B8A8SRGB *src2)
+{
+ dst->R =
+ gl::linearToSRGB(static_cast<uint8_t>((static_cast<uint16_t>(gl::sRGBToLinear(src1->R)) +
+ static_cast<uint16_t>(gl::sRGBToLinear(src2->R))) >>
+ 1));
+ dst->G =
+ gl::linearToSRGB(static_cast<uint8_t>((static_cast<uint16_t>(gl::sRGBToLinear(src1->G)) +
+ static_cast<uint16_t>(gl::sRGBToLinear(src2->G))) >>
+ 1));
+ dst->B =
+ gl::linearToSRGB(static_cast<uint8_t>((static_cast<uint16_t>(gl::sRGBToLinear(src1->B)) +
+ static_cast<uint16_t>(gl::sRGBToLinear(src2->B))) >>
+ 1));
+ dst->A = static_cast<uint8_t>(
+ (static_cast<uint16_t>(src1->A) + static_cast<uint16_t>(src2->A)) >> 1);
+}
+
+void B8G8R8A8::readColor(gl::ColorUI *dst, const B8G8R8A8 *src)
+{
+ dst->red = src->R;
+ dst->green = src->G;
+ dst->blue = src->B;
+ dst->alpha = src->A;
+}
+
+void B8G8R8A8::readColor(gl::ColorF *dst, const B8G8R8A8 *src)
+{
+ dst->red = gl::normalizedToFloat(src->R);
+ dst->green = gl::normalizedToFloat(src->G);
+ dst->blue = gl::normalizedToFloat(src->B);
+ dst->alpha = gl::normalizedToFloat(src->A);
+}
+
+void B8G8R8A8::writeColor(B8G8R8A8 *dst, const gl::ColorUI *src)
+{
+ dst->R = static_cast<uint8_t>(src->red);
+ dst->G = static_cast<uint8_t>(src->green);
+ dst->B = static_cast<uint8_t>(src->blue);
+ dst->A = static_cast<uint8_t>(src->alpha);
+}
+
+void B8G8R8A8::writeColor(B8G8R8A8 *dst, const gl::ColorF *src)
+{
+ dst->R = gl::floatToNormalized<uint8_t>(src->red);
+ dst->G = gl::floatToNormalized<uint8_t>(src->green);
+ dst->B = gl::floatToNormalized<uint8_t>(src->blue);
+ dst->A = gl::floatToNormalized<uint8_t>(src->alpha);
+}
+
+void B8G8R8A8::average(B8G8R8A8 *dst, const B8G8R8A8 *src1, const B8G8R8A8 *src2)
+{
+ *(uint32_t *)dst = (((*(uint32_t *)src1 ^ *(uint32_t *)src2) & 0xFEFEFEFE) >> 1) +
+ (*(uint32_t *)src1 & *(uint32_t *)src2);
+}
+
+void B8G8R8X8::readColor(gl::ColorUI *dst, const B8G8R8X8 *src)
+{
+ dst->red = src->R;
+ dst->green = src->G;
+ dst->blue = src->B;
+ dst->alpha = 1;
+}
+
+void B8G8R8X8::readColor(gl::ColorF *dst, const B8G8R8X8 *src)
+{
+ dst->red = gl::normalizedToFloat(src->R);
+ dst->green = gl::normalizedToFloat(src->G);
+ dst->blue = gl::normalizedToFloat(src->B);
+ dst->alpha = 1.0f;
+}
+
+void B8G8R8X8::writeColor(B8G8R8X8 *dst, const gl::ColorUI *src)
+{
+ dst->R = static_cast<uint8_t>(src->red);
+ dst->G = static_cast<uint8_t>(src->green);
+ dst->B = static_cast<uint8_t>(src->blue);
+ dst->X = 255;
+}
+
+void B8G8R8X8::writeColor(B8G8R8X8 *dst, const gl::ColorF *src)
+{
+ dst->R = gl::floatToNormalized<uint8_t>(src->red);
+ dst->G = gl::floatToNormalized<uint8_t>(src->green);
+ dst->B = gl::floatToNormalized<uint8_t>(src->blue);
+ dst->X = 255;
+}
+
+void B8G8R8X8::average(B8G8R8X8 *dst, const B8G8R8X8 *src1, const B8G8R8X8 *src2)
+{
+ *(uint32_t *)dst = (((*(uint32_t *)src1 ^ *(uint32_t *)src2) & 0xFEFEFEFE) >> 1) +
+ (*(uint32_t *)src1 & *(uint32_t *)src2);
+ dst->X = 255;
+}
+
+void R8G8B8X8::readColor(gl::ColorUI *dst, const R8G8B8X8 *src)
+{
+ dst->red = src->R;
+ dst->green = src->G;
+ dst->blue = src->B;
+ dst->alpha = 1;
+}
+
+void R8G8B8X8::readColor(gl::ColorF *dst, const R8G8B8X8 *src)
+{
+ dst->red = gl::normalizedToFloat(src->R);
+ dst->green = gl::normalizedToFloat(src->G);
+ dst->blue = gl::normalizedToFloat(src->B);
+ dst->alpha = 1.0f;
+}
+
+void R8G8B8X8::writeColor(R8G8B8X8 *dst, const gl::ColorUI *src)
+{
+ dst->R = static_cast<uint8_t>(src->red);
+ dst->G = static_cast<uint8_t>(src->green);
+ dst->B = static_cast<uint8_t>(src->blue);
+ dst->X = 255;
+}
+
+void R8G8B8X8::writeColor(R8G8B8X8 *dst, const gl::ColorF *src)
+{
+ dst->R = gl::floatToNormalized<uint8_t>(src->red);
+ dst->G = gl::floatToNormalized<uint8_t>(src->green);
+ dst->B = gl::floatToNormalized<uint8_t>(src->blue);
+ dst->X = 255;
+}
+
+void R8G8B8X8::average(R8G8B8X8 *dst, const R8G8B8X8 *src1, const R8G8B8X8 *src2)
+{
+ *(uint32_t *)dst = (((*(uint32_t *)src1 ^ *(uint32_t *)src2) & 0xFEFEFEFE) >> 1) +
+ (*(uint32_t *)src1 & *(uint32_t *)src2);
+ dst->X = 255;
+}
+
+void A1R5G5B5::readColor(gl::ColorF *dst, const A1R5G5B5 *src)
+{
+ dst->alpha = gl::normalizedToFloat<1>(gl::getShiftedData<1, 15>(src->ARGB));
+ dst->red = gl::normalizedToFloat<5>(gl::getShiftedData<5, 10>(src->ARGB));
+ dst->green = gl::normalizedToFloat<5>(gl::getShiftedData<5, 5>(src->ARGB));
+ dst->blue = gl::normalizedToFloat<5>(gl::getShiftedData<5, 0>(src->ARGB));
+}
+
+void A1R5G5B5::writeColor(A1R5G5B5 *dst, const gl::ColorF *src)
+{
+ dst->ARGB = gl::shiftData<1, 15>(gl::floatToNormalized<1, uint16_t>(src->alpha)) |
+ gl::shiftData<5, 10>(gl::floatToNormalized<5, uint16_t>(src->red)) |
+ gl::shiftData<5, 5>(gl::floatToNormalized<5, uint16_t>(src->green)) |
+ gl::shiftData<5, 0>(gl::floatToNormalized<5, uint16_t>(src->blue));
+}
+
+void A1R5G5B5::average(A1R5G5B5 *dst, const A1R5G5B5 *src1, const A1R5G5B5 *src2)
+{
+ dst->ARGB = gl::shiftData<1, 15>(gl::average(gl::getShiftedData<1, 15>(src1->ARGB),
+ gl::getShiftedData<1, 15>(src2->ARGB))) |
+ gl::shiftData<5, 10>(gl::average(gl::getShiftedData<5, 10>(src1->ARGB),
+ gl::getShiftedData<5, 10>(src2->ARGB))) |
+ gl::shiftData<5, 5>(gl::average(gl::getShiftedData<5, 5>(src1->ARGB),
+ gl::getShiftedData<5, 5>(src2->ARGB))) |
+ gl::shiftData<5, 0>(gl::average(gl::getShiftedData<5, 0>(src1->ARGB),
+ gl::getShiftedData<5, 0>(src2->ARGB)));
+}
+
+void R5G5B5A1::readColor(gl::ColorF *dst, const R5G5B5A1 *src)
+{
+ dst->red = gl::normalizedToFloat<5>(gl::getShiftedData<5, 11>(src->RGBA));
+ dst->green = gl::normalizedToFloat<5>(gl::getShiftedData<5, 6>(src->RGBA));
+ dst->blue = gl::normalizedToFloat<5>(gl::getShiftedData<5, 1>(src->RGBA));
+ dst->alpha = gl::normalizedToFloat<1>(gl::getShiftedData<1, 0>(src->RGBA));
+}
+
+void R5G5B5A1::writeColor(R5G5B5A1 *dst, const gl::ColorF *src)
+{
+ dst->RGBA = gl::shiftData<5, 11>(gl::floatToNormalized<5, uint16_t>(src->red)) |
+ gl::shiftData<5, 6>(gl::floatToNormalized<5, uint16_t>(src->green)) |
+ gl::shiftData<5, 1>(gl::floatToNormalized<5, uint16_t>(src->blue)) |
+ gl::shiftData<1, 0>(gl::floatToNormalized<1, uint16_t>(src->alpha));
+}
+
+void R5G5B5A1::average(R5G5B5A1 *dst, const R5G5B5A1 *src1, const R5G5B5A1 *src2)
+{
+ dst->RGBA = gl::shiftData<5, 11>(gl::average(gl::getShiftedData<5, 11>(src1->RGBA),
+ gl::getShiftedData<5, 11>(src2->RGBA))) |
+ gl::shiftData<5, 6>(gl::average(gl::getShiftedData<5, 6>(src1->RGBA),
+ gl::getShiftedData<5, 6>(src2->RGBA))) |
+ gl::shiftData<5, 1>(gl::average(gl::getShiftedData<5, 1>(src1->RGBA),
+ gl::getShiftedData<5, 1>(src2->RGBA))) |
+ gl::shiftData<1, 0>(gl::average(gl::getShiftedData<1, 0>(src1->RGBA),
+ gl::getShiftedData<1, 0>(src2->RGBA)));
+}
+
+void R4G4B4A4::readColor(gl::ColorF *dst, const R4G4B4A4 *src)
+{
+ dst->red = gl::normalizedToFloat<4>(gl::getShiftedData<4, 12>(src->RGBA));
+ dst->green = gl::normalizedToFloat<4>(gl::getShiftedData<4, 8>(src->RGBA));
+ dst->blue = gl::normalizedToFloat<4>(gl::getShiftedData<4, 4>(src->RGBA));
+ dst->alpha = gl::normalizedToFloat<4>(gl::getShiftedData<4, 0>(src->RGBA));
+}
+
+void R4G4B4A4::writeColor(R4G4B4A4 *dst, const gl::ColorF *src)
+{
+ dst->RGBA = gl::shiftData<4, 12>(gl::floatToNormalized<4, uint16_t>(src->red)) |
+ gl::shiftData<4, 8>(gl::floatToNormalized<4, uint16_t>(src->green)) |
+ gl::shiftData<4, 4>(gl::floatToNormalized<4, uint16_t>(src->blue)) |
+ gl::shiftData<4, 0>(gl::floatToNormalized<4, uint16_t>(src->alpha));
+}
+
+void R4G4B4A4::average(R4G4B4A4 *dst, const R4G4B4A4 *src1, const R4G4B4A4 *src2)
+{
+ dst->RGBA = gl::shiftData<4, 12>(gl::average(gl::getShiftedData<4, 12>(src1->RGBA),
+ gl::getShiftedData<4, 12>(src2->RGBA))) |
+ gl::shiftData<4, 8>(gl::average(gl::getShiftedData<4, 8>(src1->RGBA),
+ gl::getShiftedData<4, 8>(src2->RGBA))) |
+ gl::shiftData<4, 4>(gl::average(gl::getShiftedData<4, 4>(src1->RGBA),
+ gl::getShiftedData<4, 4>(src2->RGBA))) |
+ gl::shiftData<4, 0>(gl::average(gl::getShiftedData<4, 0>(src1->RGBA),
+ gl::getShiftedData<4, 0>(src2->RGBA)));
+}
+
+void A4R4G4B4::readColor(gl::ColorF *dst, const A4R4G4B4 *src)
+{
+ dst->alpha = gl::normalizedToFloat<4>(gl::getShiftedData<4, 12>(src->ARGB));
+ dst->red = gl::normalizedToFloat<4>(gl::getShiftedData<4, 8>(src->ARGB));
+ dst->green = gl::normalizedToFloat<4>(gl::getShiftedData<4, 4>(src->ARGB));
+ dst->blue = gl::normalizedToFloat<4>(gl::getShiftedData<4, 0>(src->ARGB));
+}
+
+void A4R4G4B4::writeColor(A4R4G4B4 *dst, const gl::ColorF *src)
+{
+ dst->ARGB = gl::shiftData<4, 12>(gl::floatToNormalized<4, uint16_t>(src->alpha)) |
+ gl::shiftData<4, 8>(gl::floatToNormalized<4, uint16_t>(src->red)) |
+ gl::shiftData<4, 4>(gl::floatToNormalized<4, uint16_t>(src->green)) |
+ gl::shiftData<4, 0>(gl::floatToNormalized<4, uint16_t>(src->blue));
+}
+
+void A4R4G4B4::average(A4R4G4B4 *dst, const A4R4G4B4 *src1, const A4R4G4B4 *src2)
+{
+ dst->ARGB = gl::shiftData<4, 12>(gl::average(gl::getShiftedData<4, 12>(src1->ARGB),
+ gl::getShiftedData<4, 12>(src2->ARGB))) |
+ gl::shiftData<4, 8>(gl::average(gl::getShiftedData<4, 8>(src1->ARGB),
+ gl::getShiftedData<4, 8>(src2->ARGB))) |
+ gl::shiftData<4, 4>(gl::average(gl::getShiftedData<4, 4>(src1->ARGB),
+ gl::getShiftedData<4, 4>(src2->ARGB))) |
+ gl::shiftData<4, 0>(gl::average(gl::getShiftedData<4, 0>(src1->ARGB),
+ gl::getShiftedData<4, 0>(src2->ARGB)));
+}
+
+void R16::readColor(gl::ColorUI *dst, const R16 *src)
+{
+ dst->red = src->R;
+ dst->green = 0;
+ dst->blue = 0;
+ dst->alpha = 1;
+}
+
+void R16::readColor(gl::ColorF *dst, const R16 *src)
+{
+ dst->red = gl::normalizedToFloat(src->R);
+ dst->green = 0.0f;
+ dst->blue = 0.0f;
+ dst->alpha = 1.0f;
+}
+
+void R16::writeColor(R16 *dst, const gl::ColorUI *src)
+{
+ dst->R = static_cast<uint16_t>(src->red);
+}
+
+void R16::writeColor(R16 *dst, const gl::ColorF *src)
+{
+ dst->R = gl::floatToNormalized<uint16_t>(src->red);
+}
+
+void R16::average(R16 *dst, const R16 *src1, const R16 *src2)
+{
+ dst->R = gl::average(src1->R, src2->R);
+}
+
+void R16G16::readColor(gl::ColorUI *dst, const R16G16 *src)
+{
+ dst->red = src->R;
+ dst->green = src->G;
+ dst->blue = 0;
+ dst->alpha = 1;
+}
+
+void R16G16::readColor(gl::ColorF *dst, const R16G16 *src)
+{
+ dst->red = gl::normalizedToFloat(src->R);
+ dst->green = gl::normalizedToFloat(src->G);
+ dst->blue = 0.0f;
+ dst->alpha = 1.0f;
+}
+
+void R16G16::writeColor(R16G16 *dst, const gl::ColorUI *src)
+{
+ dst->R = static_cast<uint16_t>(src->red);
+ dst->G = static_cast<uint16_t>(src->green);
+}
+
+void R16G16::writeColor(R16G16 *dst, const gl::ColorF *src)
+{
+ dst->R = gl::floatToNormalized<uint16_t>(src->red);
+ dst->G = gl::floatToNormalized<uint16_t>(src->green);
+}
+
+void R16G16::average(R16G16 *dst, const R16G16 *src1, const R16G16 *src2)
+{
+ dst->R = gl::average(src1->R, src2->R);
+ dst->G = gl::average(src1->G, src2->G);
+}
+
+void R16G16B16::readColor(gl::ColorUI *dst, const R16G16B16 *src)
+{
+ dst->red = src->R;
+ dst->green = src->G;
+ dst->blue = src->B;
+ dst->alpha = 1;
+}
+
+void R16G16B16::readColor(gl::ColorF *dst, const R16G16B16 *src)
+{
+ dst->red = gl::normalizedToFloat(src->R);
+ dst->green = gl::normalizedToFloat(src->G);
+ dst->blue = gl::normalizedToFloat(src->B);
+ dst->alpha = 1.0f;
+}
+
+void R16G16B16::writeColor(R16G16B16 *dst, const gl::ColorUI *src)
+{
+ dst->R = static_cast<uint16_t>(src->red);
+ dst->G = static_cast<uint16_t>(src->green);
+ dst->B = static_cast<uint16_t>(src->blue);
+}
+
+void R16G16B16::writeColor(R16G16B16 *dst, const gl::ColorF *src)
+{
+ dst->R = gl::floatToNormalized<uint16_t>(src->red);
+ dst->G = gl::floatToNormalized<uint16_t>(src->green);
+ dst->B = gl::floatToNormalized<uint16_t>(src->blue);
+}
+
+void R16G16B16::average(R16G16B16 *dst, const R16G16B16 *src1, const R16G16B16 *src2)
+{
+ dst->R = gl::average(src1->R, src2->R);
+ dst->G = gl::average(src1->G, src2->G);
+ dst->B = gl::average(src1->B, src2->B);
+}
+
+void R16G16B16A16::readColor(gl::ColorUI *dst, const R16G16B16A16 *src)
+{
+ dst->red = src->R;
+ dst->green = src->G;
+ dst->blue = src->B;
+ dst->alpha = src->A;
+}
+
+void R16G16B16A16::readColor(gl::ColorF *dst, const R16G16B16A16 *src)
+{
+ dst->red = gl::normalizedToFloat(src->R);
+ dst->green = gl::normalizedToFloat(src->G);
+ dst->blue = gl::normalizedToFloat(src->B);
+ dst->alpha = gl::normalizedToFloat(src->A);
+}
+
+void R16G16B16A16::writeColor(R16G16B16A16 *dst, const gl::ColorUI *src)
+{
+ dst->R = static_cast<uint16_t>(src->red);
+ dst->G = static_cast<uint16_t>(src->green);
+ dst->B = static_cast<uint16_t>(src->blue);
+ dst->A = static_cast<uint16_t>(src->alpha);
+}
+
+void R16G16B16A16::writeColor(R16G16B16A16 *dst, const gl::ColorF *src)
+{
+ dst->R = gl::floatToNormalized<uint16_t>(src->red);
+ dst->G = gl::floatToNormalized<uint16_t>(src->green);
+ dst->B = gl::floatToNormalized<uint16_t>(src->blue);
+ dst->A = gl::floatToNormalized<uint16_t>(src->alpha);
+}
+
+void R16G16B16A16::average(R16G16B16A16 *dst, const R16G16B16A16 *src1, const R16G16B16A16 *src2)
+{
+ dst->R = gl::average(src1->R, src2->R);
+ dst->G = gl::average(src1->G, src2->G);
+ dst->B = gl::average(src1->B, src2->B);
+ dst->A = gl::average(src1->A, src2->A);
+}
+
+void R32::readColor(gl::ColorUI *dst, const R32 *src)
+{
+ dst->red = src->R;
+ dst->green = 0;
+ dst->blue = 0;
+ dst->alpha = 1;
+}
+
+void R32::readColor(gl::ColorF *dst, const R32 *src)
+{
+ dst->red = gl::normalizedToFloat(src->R);
+ dst->green = 0.0f;
+ dst->blue = 0.0f;
+ dst->alpha = 1.0f;
+}
+
+void R32::writeColor(R32 *dst, const gl::ColorUI *src)
+{
+ dst->R = static_cast<uint32_t>(src->red);
+}
+
+void R32::writeColor(R32 *dst, const gl::ColorF *src)
+{
+ dst->R = gl::floatToNormalized<uint32_t>(src->red);
+}
+
+void R32::average(R32 *dst, const R32 *src1, const R32 *src2)
+{
+ dst->R = gl::average(src1->R, src2->R);
+}
+
+void R32G32::readColor(gl::ColorUI *dst, const R32G32 *src)
+{
+ dst->red = src->R;
+ dst->green = src->G;
+ dst->blue = 0;
+ dst->alpha = 1;
+}
+
+void R32G32::readColor(gl::ColorF *dst, const R32G32 *src)
+{
+ dst->red = gl::normalizedToFloat(src->R);
+ dst->green = gl::normalizedToFloat(src->G);
+ dst->blue = 0.0f;
+ dst->alpha = 1.0f;
+}
+
+void R32G32::writeColor(R32G32 *dst, const gl::ColorUI *src)
+{
+ dst->R = static_cast<uint32_t>(src->red);
+ dst->G = static_cast<uint32_t>(src->green);
+}
+
+void R32G32::writeColor(R32G32 *dst, const gl::ColorF *src)
+{
+ dst->R = gl::floatToNormalized<uint32_t>(src->red);
+ dst->G = gl::floatToNormalized<uint32_t>(src->green);
+}
+
+void R32G32::average(R32G32 *dst, const R32G32 *src1, const R32G32 *src2)
+{
+ dst->R = gl::average(src1->R, src2->R);
+ dst->G = gl::average(src1->G, src2->G);
+}
+
+void R32G32B32::readColor(gl::ColorUI *dst, const R32G32B32 *src)
+{
+ dst->red = src->R;
+ dst->green = src->G;
+ dst->blue = src->B;
+ dst->alpha = 1;
+}
+
+void R32G32B32::readColor(gl::ColorF *dst, const R32G32B32 *src)
+{
+ dst->red = gl::normalizedToFloat(src->R);
+ dst->green = gl::normalizedToFloat(src->G);
+ dst->blue = gl::normalizedToFloat(src->B);
+ dst->alpha = 1.0f;
+}
+
+void R32G32B32::writeColor(R32G32B32 *dst, const gl::ColorUI *src)
+{
+ dst->R = static_cast<uint32_t>(src->red);
+ dst->G = static_cast<uint32_t>(src->green);
+ dst->B = static_cast<uint32_t>(src->blue);
+}
+
+void R32G32B32::writeColor(R32G32B32 *dst, const gl::ColorF *src)
+{
+ dst->R = gl::floatToNormalized<uint32_t>(src->red);
+ dst->G = gl::floatToNormalized<uint32_t>(src->green);
+ dst->B = gl::floatToNormalized<uint32_t>(src->blue);
+}
+
+void R32G32B32::average(R32G32B32 *dst, const R32G32B32 *src1, const R32G32B32 *src2)
+{
+ dst->R = gl::average(src1->R, src2->R);
+ dst->G = gl::average(src1->G, src2->G);
+ dst->B = gl::average(src1->B, src2->B);
+}
+
+void R32G32B32A32::readColor(gl::ColorUI *dst, const R32G32B32A32 *src)
+{
+ dst->red = src->R;
+ dst->green = src->G;
+ dst->blue = src->B;
+ dst->alpha = src->A;
+}
+
+void R32G32B32A32::readColor(gl::ColorF *dst, const R32G32B32A32 *src)
+{
+ dst->red = gl::normalizedToFloat(src->R);
+ dst->green = gl::normalizedToFloat(src->G);
+ dst->blue = gl::normalizedToFloat(src->B);
+ dst->alpha = gl::normalizedToFloat(src->A);
+}
+
+void R32G32B32A32::writeColor(R32G32B32A32 *dst, const gl::ColorUI *src)
+{
+ dst->R = static_cast<uint32_t>(src->red);
+ dst->G = static_cast<uint32_t>(src->green);
+ dst->B = static_cast<uint32_t>(src->blue);
+ dst->A = static_cast<uint32_t>(src->alpha);
+}
+
+void R32G32B32A32::writeColor(R32G32B32A32 *dst, const gl::ColorF *src)
+{
+ dst->R = gl::floatToNormalized<uint32_t>(src->red);
+ dst->G = gl::floatToNormalized<uint32_t>(src->green);
+ dst->B = gl::floatToNormalized<uint32_t>(src->blue);
+ dst->A = gl::floatToNormalized<uint32_t>(src->alpha);
+}
+
+void R32G32B32A32::average(R32G32B32A32 *dst, const R32G32B32A32 *src1, const R32G32B32A32 *src2)
+{
+ dst->R = gl::average(src1->R, src2->R);
+ dst->G = gl::average(src1->G, src2->G);
+ dst->B = gl::average(src1->B, src2->B);
+ dst->A = gl::average(src1->A, src2->A);
+}
+
+void R8S::readColor(gl::ColorI *dst, const R8S *src)
+{
+ dst->red = src->R;
+ dst->green = 0;
+ dst->blue = 0;
+ dst->alpha = 1;
+}
+
+void R8S::readColor(gl::ColorF *dst, const R8S *src)
+{
+ dst->red = gl::normalizedToFloat(src->R);
+ dst->green = 0.0f;
+ dst->blue = 0.0f;
+ dst->alpha = 1.0f;
+}
+
+void R8S::writeColor(R8S *dst, const gl::ColorI *src)
+{
+ dst->R = static_cast<int8_t>(src->red);
+}
+
+void R8S::writeColor(R8S *dst, const gl::ColorF *src)
+{
+ dst->R = gl::floatToNormalized<int8_t>(src->red);
+}
+
+void R8S::average(R8S *dst, const R8S *src1, const R8S *src2)
+{
+ dst->R = static_cast<int8_t>(gl::average(src1->R, src2->R));
+}
+
+void R8G8S::readColor(gl::ColorI *dst, const R8G8S *src)
+{
+ dst->red = src->R;
+ dst->green = src->G;
+ dst->blue = 0;
+ dst->alpha = 1;
+}
+
+void R8G8S::readColor(gl::ColorF *dst, const R8G8S *src)
+{
+ dst->red = gl::normalizedToFloat(src->R);
+ dst->green = gl::normalizedToFloat(src->G);
+ dst->blue = 0.0f;
+ dst->alpha = 1.0f;
+}
+
+void R8G8S::writeColor(R8G8S *dst, const gl::ColorI *src)
+{
+ dst->R = static_cast<int8_t>(src->red);
+ dst->G = static_cast<int8_t>(src->green);
+}
+
+void R8G8S::writeColor(R8G8S *dst, const gl::ColorF *src)
+{
+ dst->R = gl::floatToNormalized<int8_t>(src->red);
+ dst->G = gl::floatToNormalized<int8_t>(src->green);
+}
+
+void R8G8S::average(R8G8S *dst, const R8G8S *src1, const R8G8S *src2)
+{
+ dst->R = static_cast<int8_t>(gl::average(src1->R, src2->R));
+ dst->G = static_cast<int8_t>(gl::average(src1->G, src2->G));
+}
+
+void R8G8B8S::readColor(gl::ColorI *dst, const R8G8B8S *src)
+{
+ dst->red = src->R;
+ dst->green = src->G;
+ dst->blue = src->B;
+ dst->alpha = 1;
+}
+
+void R8G8B8S::readColor(gl::ColorF *dst, const R8G8B8S *src)
+{
+ dst->red = gl::normalizedToFloat(src->R);
+ dst->green = gl::normalizedToFloat(src->G);
+ dst->blue = gl::normalizedToFloat(src->B);
+ dst->alpha = 1.0f;
+}
+
+void R8G8B8S::writeColor(R8G8B8S *dst, const gl::ColorI *src)
+{
+ dst->R = static_cast<int8_t>(src->red);
+ dst->G = static_cast<int8_t>(src->green);
+ dst->B = static_cast<int8_t>(src->blue);
+}
+
+void R8G8B8S::writeColor(R8G8B8S *dst, const gl::ColorF *src)
+{
+ dst->R = gl::floatToNormalized<int8_t>(src->red);
+ dst->G = gl::floatToNormalized<int8_t>(src->green);
+ dst->B = gl::floatToNormalized<int8_t>(src->blue);
+}
+
+void R8G8B8S::average(R8G8B8S *dst, const R8G8B8S *src1, const R8G8B8S *src2)
+{
+ dst->R = static_cast<int8_t>(gl::average(src1->R, src2->R));
+ dst->G = static_cast<int8_t>(gl::average(src1->G, src2->G));
+ dst->B = static_cast<int8_t>(gl::average(src1->B, src2->B));
+}
+
+void R8G8B8A8S::readColor(gl::ColorI *dst, const R8G8B8A8S *src)
+{
+ dst->red = src->R;
+ dst->green = src->G;
+ dst->blue = src->B;
+ dst->alpha = src->A;
+}
+
+void R8G8B8A8S::readColor(gl::ColorF *dst, const R8G8B8A8S *src)
+{
+ dst->red = gl::normalizedToFloat(src->R);
+ dst->green = gl::normalizedToFloat(src->G);
+ dst->blue = gl::normalizedToFloat(src->B);
+ dst->alpha = gl::normalizedToFloat(src->A);
+}
+
+void R8G8B8A8S::writeColor(R8G8B8A8S *dst, const gl::ColorI *src)
+{
+ dst->R = static_cast<int8_t>(src->red);
+ dst->G = static_cast<int8_t>(src->green);
+ dst->B = static_cast<int8_t>(src->blue);
+ dst->A = static_cast<int8_t>(src->alpha);
+}
+
+void R8G8B8A8S::writeColor(R8G8B8A8S *dst, const gl::ColorF *src)
+{
+ dst->R = gl::floatToNormalized<int8_t>(src->red);
+ dst->G = gl::floatToNormalized<int8_t>(src->green);
+ dst->B = gl::floatToNormalized<int8_t>(src->blue);
+ dst->A = gl::floatToNormalized<int8_t>(src->alpha);
+}
+
+void R8G8B8A8S::average(R8G8B8A8S *dst, const R8G8B8A8S *src1, const R8G8B8A8S *src2)
+{
+ dst->R = static_cast<int8_t>(gl::average(src1->R, src2->R));
+ dst->G = static_cast<int8_t>(gl::average(src1->G, src2->G));
+ dst->B = static_cast<int8_t>(gl::average(src1->B, src2->B));
+ dst->A = static_cast<int8_t>(gl::average(src1->A, src2->A));
+}
+
+void R16S::readColor(gl::ColorI *dst, const R16S *src)
+{
+ dst->red = src->R;
+ dst->green = 0;
+ dst->blue = 0;
+ dst->alpha = 1;
+}
+
+void R16S::readColor(gl::ColorF *dst, const R16S *src)
+{
+ dst->red = gl::normalizedToFloat(src->R);
+ dst->green = 0.0f;
+ dst->blue = 0.0f;
+ dst->alpha = 1.0f;
+}
+
+void R16S::writeColor(R16S *dst, const gl::ColorI *src)
+{
+ dst->R = static_cast<int16_t>(src->red);
+}
+
+void R16S::writeColor(R16S *dst, const gl::ColorF *src)
+{
+ dst->R = gl::floatToNormalized<int16_t>(src->red);
+}
+
+void R16S::average(R16S *dst, const R16S *src1, const R16S *src2)
+{
+ dst->R = gl::average(src1->R, src2->R);
+}
+
+void R16G16S::readColor(gl::ColorI *dst, const R16G16S *src)
+{
+ dst->red = src->R;
+ dst->green = src->G;
+ dst->blue = 0;
+ dst->alpha = 1;
+}
+
+void R16G16S::readColor(gl::ColorF *dst, const R16G16S *src)
+{
+ dst->red = gl::normalizedToFloat(src->R);
+ dst->green = gl::normalizedToFloat(src->G);
+ dst->blue = 0.0f;
+ dst->alpha = 1.0f;
+}
+
+void R16G16S::writeColor(R16G16S *dst, const gl::ColorI *src)
+{
+ dst->R = static_cast<int16_t>(src->red);
+ dst->G = static_cast<int16_t>(src->green);
+}
+
+void R16G16S::writeColor(R16G16S *dst, const gl::ColorF *src)
+{
+ dst->R = gl::floatToNormalized<int16_t>(src->red);
+ dst->G = gl::floatToNormalized<int16_t>(src->green);
+}
+
+void R16G16S::average(R16G16S *dst, const R16G16S *src1, const R16G16S *src2)
+{
+ dst->R = gl::average(src1->R, src2->R);
+ dst->G = gl::average(src1->G, src2->G);
+}
+
+void R16G16B16S::readColor(gl::ColorI *dst, const R16G16B16S *src)
+{
+ dst->red = src->R;
+ dst->green = src->G;
+ dst->blue = src->B;
+ dst->alpha = 1;
+}
+
+void R16G16B16S::readColor(gl::ColorF *dst, const R16G16B16S *src)
+{
+ dst->red = gl::normalizedToFloat(src->R);
+ dst->green = gl::normalizedToFloat(src->G);
+ dst->blue = gl::normalizedToFloat(src->B);
+ dst->alpha = 1.0f;
+}
+
+void R16G16B16S::writeColor(R16G16B16S *dst, const gl::ColorI *src)
+{
+ dst->R = static_cast<int16_t>(src->red);
+ dst->G = static_cast<int16_t>(src->green);
+ dst->B = static_cast<int16_t>(src->blue);
+}
+
+void R16G16B16S::writeColor(R16G16B16S *dst, const gl::ColorF *src)
+{
+ dst->R = gl::floatToNormalized<int16_t>(src->red);
+ dst->G = gl::floatToNormalized<int16_t>(src->green);
+ dst->B = gl::floatToNormalized<int16_t>(src->blue);
+}
+
+void R16G16B16S::average(R16G16B16S *dst, const R16G16B16S *src1, const R16G16B16S *src2)
+{
+ dst->R = gl::average(src1->R, src2->R);
+ dst->G = gl::average(src1->G, src2->G);
+ dst->B = gl::average(src1->B, src2->B);
+}
+
+void R16G16B16A16S::readColor(gl::ColorI *dst, const R16G16B16A16S *src)
+{
+ dst->red = src->R;
+ dst->green = src->G;
+ dst->blue = src->B;
+ dst->alpha = src->A;
+}
+
+void R16G16B16A16S::readColor(gl::ColorF *dst, const R16G16B16A16S *src)
+{
+ dst->red = gl::normalizedToFloat(src->R);
+ dst->green = gl::normalizedToFloat(src->G);
+ dst->blue = gl::normalizedToFloat(src->B);
+ dst->alpha = gl::normalizedToFloat(src->A);
+}
+
+void R16G16B16A16S::writeColor(R16G16B16A16S *dst, const gl::ColorI *src)
+{
+ dst->R = static_cast<int16_t>(src->red);
+ dst->G = static_cast<int16_t>(src->green);
+ dst->B = static_cast<int16_t>(src->blue);
+ dst->A = static_cast<int16_t>(src->alpha);
+}
+
+void R16G16B16A16S::writeColor(R16G16B16A16S *dst, const gl::ColorF *src)
+{
+ dst->R = gl::floatToNormalized<int16_t>(src->red);
+ dst->G = gl::floatToNormalized<int16_t>(src->green);
+ dst->B = gl::floatToNormalized<int16_t>(src->blue);
+ dst->A = gl::floatToNormalized<int16_t>(src->alpha);
+}
+
+void R16G16B16A16S::average(R16G16B16A16S *dst,
+ const R16G16B16A16S *src1,
+ const R16G16B16A16S *src2)
+{
+ dst->R = gl::average(src1->R, src2->R);
+ dst->G = gl::average(src1->G, src2->G);
+ dst->B = gl::average(src1->B, src2->B);
+ dst->A = gl::average(src1->A, src2->A);
+}
+
+void R32S::readColor(gl::ColorI *dst, const R32S *src)
+{
+ dst->red = src->R;
+ dst->green = 0;
+ dst->blue = 0;
+ dst->alpha = 1;
+}
+
+void R32S::readColor(gl::ColorF *dst, const R32S *src)
+{
+ dst->red = gl::normalizedToFloat(src->R);
+ dst->green = 0.0f;
+ dst->blue = 0.0f;
+ dst->alpha = 1.0f;
+}
+
+void R32S::writeColor(R32S *dst, const gl::ColorI *src)
+{
+ dst->R = static_cast<int32_t>(src->red);
+}
+
+void R32S::writeColor(R32S *dst, const gl::ColorF *src)
+{
+ dst->R = gl::floatToNormalized<int32_t>(src->red);
+}
+
+void R32S::average(R32S *dst, const R32S *src1, const R32S *src2)
+{
+ dst->R = gl::average(src1->R, src2->R);
+}
+
+void R32G32S::readColor(gl::ColorI *dst, const R32G32S *src)
+{
+ dst->red = src->R;
+ dst->green = src->G;
+ dst->blue = 0;
+ dst->alpha = 1;
+}
+
+void R32G32S::readColor(gl::ColorF *dst, const R32G32S *src)
+{
+ dst->red = gl::normalizedToFloat(src->R);
+ dst->green = gl::normalizedToFloat(src->G);
+ dst->blue = 0.0f;
+ dst->alpha = 1.0f;
+}
+
+void R32G32S::writeColor(R32G32S *dst, const gl::ColorI *src)
+{
+ dst->R = static_cast<int32_t>(src->red);
+ dst->G = static_cast<int32_t>(src->green);
+}
+
+void R32G32S::writeColor(R32G32S *dst, const gl::ColorF *src)
+{
+ dst->R = gl::floatToNormalized<int32_t>(src->red);
+ dst->G = gl::floatToNormalized<int32_t>(src->green);
+}
+
+void R32G32S::average(R32G32S *dst, const R32G32S *src1, const R32G32S *src2)
+{
+ dst->R = gl::average(src1->R, src2->R);
+ dst->G = gl::average(src1->G, src2->G);
+}
+
+void R32G32B32S::readColor(gl::ColorI *dst, const R32G32B32S *src)
+{
+ dst->red = src->R;
+ dst->green = src->G;
+ dst->blue = src->B;
+ dst->alpha = 1;
+}
+
+void R32G32B32S::readColor(gl::ColorF *dst, const R32G32B32S *src)
+{
+ dst->red = gl::normalizedToFloat(src->R);
+ dst->green = gl::normalizedToFloat(src->G);
+ dst->blue = gl::normalizedToFloat(src->B);
+ dst->alpha = 1.0f;
+}
+
+void R32G32B32S::writeColor(R32G32B32S *dst, const gl::ColorI *src)
+{
+ dst->R = static_cast<int32_t>(src->red);
+ dst->G = static_cast<int32_t>(src->green);
+ dst->B = static_cast<int32_t>(src->blue);
+}
+
+void R32G32B32S::writeColor(R32G32B32S *dst, const gl::ColorF *src)
+{
+ dst->R = gl::floatToNormalized<int32_t>(src->red);
+ dst->G = gl::floatToNormalized<int32_t>(src->green);
+ dst->B = gl::floatToNormalized<int32_t>(src->blue);
+}
+
+void R32G32B32S::average(R32G32B32S *dst, const R32G32B32S *src1, const R32G32B32S *src2)
+{
+ dst->R = gl::average(src1->R, src2->R);
+ dst->G = gl::average(src1->G, src2->G);
+ dst->B = gl::average(src1->B, src2->B);
+}
+
+void R32G32B32A32S::readColor(gl::ColorI *dst, const R32G32B32A32S *src)
+{
+ dst->red = src->R;
+ dst->green = src->G;
+ dst->blue = src->B;
+ dst->alpha = src->A;
+}
+
+void R32G32B32A32S::readColor(gl::ColorF *dst, const R32G32B32A32S *src)
+{
+ dst->red = gl::normalizedToFloat(src->R);
+ dst->green = gl::normalizedToFloat(src->G);
+ dst->blue = gl::normalizedToFloat(src->B);
+ dst->alpha = gl::normalizedToFloat(src->A);
+}
+
+void R32G32B32A32S::writeColor(R32G32B32A32S *dst, const gl::ColorI *src)
+{
+ dst->R = static_cast<int32_t>(src->red);
+ dst->G = static_cast<int32_t>(src->green);
+ dst->B = static_cast<int32_t>(src->blue);
+ dst->A = static_cast<int32_t>(src->alpha);
+}
+
+void R32G32B32A32S::writeColor(R32G32B32A32S *dst, const gl::ColorF *src)
+{
+ dst->R = gl::floatToNormalized<int32_t>(src->red);
+ dst->G = gl::floatToNormalized<int32_t>(src->green);
+ dst->B = gl::floatToNormalized<int32_t>(src->blue);
+ dst->A = gl::floatToNormalized<int32_t>(src->alpha);
+}
+
+void R32G32B32A32S::average(R32G32B32A32S *dst,
+ const R32G32B32A32S *src1,
+ const R32G32B32A32S *src2)
+{
+ dst->R = gl::average(src1->R, src2->R);
+ dst->G = gl::average(src1->G, src2->G);
+ dst->B = gl::average(src1->B, src2->B);
+ dst->A = gl::average(src1->A, src2->A);
+}
+
+void A16B16G16R16F::readColor(gl::ColorF *dst, const A16B16G16R16F *src)
+{
+ dst->red = gl::float16ToFloat32(src->R);
+ dst->green = gl::float16ToFloat32(src->G);
+ dst->blue = gl::float16ToFloat32(src->B);
+ dst->alpha = gl::float16ToFloat32(src->A);
+}
+
+void A16B16G16R16F::writeColor(A16B16G16R16F *dst, const gl::ColorF *src)
+{
+ dst->R = gl::float32ToFloat16(src->red);
+ dst->G = gl::float32ToFloat16(src->green);
+ dst->B = gl::float32ToFloat16(src->blue);
+ dst->A = gl::float32ToFloat16(src->alpha);
+}
+
+void A16B16G16R16F::average(A16B16G16R16F *dst,
+ const A16B16G16R16F *src1,
+ const A16B16G16R16F *src2)
+{
+ dst->R = gl::averageHalfFloat(src1->R, src2->R);
+ dst->G = gl::averageHalfFloat(src1->G, src2->G);
+ dst->B = gl::averageHalfFloat(src1->B, src2->B);
+ dst->A = gl::averageHalfFloat(src1->A, src2->A);
+}
+
+void R16G16B16A16F::readColor(gl::ColorF *dst, const R16G16B16A16F *src)
+{
+ dst->red = gl::float16ToFloat32(src->R);
+ dst->green = gl::float16ToFloat32(src->G);
+ dst->blue = gl::float16ToFloat32(src->B);
+ dst->alpha = gl::float16ToFloat32(src->A);
+}
+
+void R16G16B16A16F::writeColor(R16G16B16A16F *dst, const gl::ColorF *src)
+{
+ dst->R = gl::float32ToFloat16(src->red);
+ dst->G = gl::float32ToFloat16(src->green);
+ dst->B = gl::float32ToFloat16(src->blue);
+ dst->A = gl::float32ToFloat16(src->alpha);
+}
+
+void R16G16B16A16F::average(R16G16B16A16F *dst,
+ const R16G16B16A16F *src1,
+ const R16G16B16A16F *src2)
+{
+ dst->R = gl::averageHalfFloat(src1->R, src2->R);
+ dst->G = gl::averageHalfFloat(src1->G, src2->G);
+ dst->B = gl::averageHalfFloat(src1->B, src2->B);
+ dst->A = gl::averageHalfFloat(src1->A, src2->A);
+}
+
+void R16F::readColor(gl::ColorF *dst, const R16F *src)
+{
+ dst->red = gl::float16ToFloat32(src->R);
+ dst->green = 0.0f;
+ dst->blue = 0.0f;
+ dst->alpha = 1.0f;
+}
+
+void R16F::writeColor(R16F *dst, const gl::ColorF *src)
+{
+ dst->R = gl::float32ToFloat16(src->red);
+}
+
+void R16F::average(R16F *dst, const R16F *src1, const R16F *src2)
+{
+ dst->R = gl::averageHalfFloat(src1->R, src2->R);
+}
+
+void A16F::readColor(gl::ColorF *dst, const A16F *src)
+{
+ dst->red = 0.0f;
+ dst->green = 0.0f;
+ dst->blue = 0.0f;
+ dst->alpha = gl::float16ToFloat32(src->A);
+}
+
+void A16F::writeColor(A16F *dst, const gl::ColorF *src)
+{
+ dst->A = gl::float32ToFloat16(src->alpha);
+}
+
+void A16F::average(A16F *dst, const A16F *src1, const A16F *src2)
+{
+ dst->A = gl::averageHalfFloat(src1->A, src2->A);
+}
+
+void L16F::readColor(gl::ColorF *dst, const L16F *src)
+{
+ float lum = gl::float16ToFloat32(src->L);
+ dst->red = lum;
+ dst->green = lum;
+ dst->blue = lum;
+ dst->alpha = 1.0f;
+}
+
+void L16F::writeColor(L16F *dst, const gl::ColorF *src)
+{
+ dst->L = gl::float32ToFloat16(src->red);
+}
+
+void L16F::average(L16F *dst, const L16F *src1, const L16F *src2)
+{
+ dst->L = gl::averageHalfFloat(src1->L, src2->L);
+}
+
+void L16A16F::readColor(gl::ColorF *dst, const L16A16F *src)
+{
+ float lum = gl::float16ToFloat32(src->L);
+ dst->red = lum;
+ dst->green = lum;
+ dst->blue = lum;
+ dst->alpha = gl::float16ToFloat32(src->A);
+}
+
+void L16A16F::writeColor(L16A16F *dst, const gl::ColorF *src)
+{
+ dst->L = gl::float32ToFloat16(src->red);
+ dst->A = gl::float32ToFloat16(src->alpha);
+}
+
+void L16A16F::average(L16A16F *dst, const L16A16F *src1, const L16A16F *src2)
+{
+ dst->L = gl::averageHalfFloat(src1->L, src2->L);
+ dst->A = gl::averageHalfFloat(src1->A, src2->A);
+}
+
+void R16G16F::readColor(gl::ColorF *dst, const R16G16F *src)
+{
+ dst->red = gl::float16ToFloat32(src->R);
+ dst->green = gl::float16ToFloat32(src->G);
+ dst->blue = 0.0f;
+ dst->alpha = 1.0f;
+}
+
+void R16G16F::writeColor(R16G16F *dst, const gl::ColorF *src)
+{
+ dst->R = gl::float32ToFloat16(src->red);
+ dst->G = gl::float32ToFloat16(src->green);
+}
+
+void R16G16F::average(R16G16F *dst, const R16G16F *src1, const R16G16F *src2)
+{
+ dst->R = gl::averageHalfFloat(src1->R, src2->R);
+ dst->G = gl::averageHalfFloat(src1->G, src2->G);
+}
+
+void R16G16B16F::readColor(gl::ColorF *dst, const R16G16B16F *src)
+{
+ dst->red = gl::float16ToFloat32(src->R);
+ dst->green = gl::float16ToFloat32(src->G);
+ dst->blue = gl::float16ToFloat32(src->B);
+ dst->alpha = 1.0f;
+}
+
+void R16G16B16F::writeColor(R16G16B16F *dst, const gl::ColorF *src)
+{
+ dst->R = gl::float32ToFloat16(src->red);
+ dst->G = gl::float32ToFloat16(src->green);
+ dst->B = gl::float32ToFloat16(src->blue);
+}
+
+void R16G16B16F::average(R16G16B16F *dst, const R16G16B16F *src1, const R16G16B16F *src2)
+{
+ dst->R = gl::averageHalfFloat(src1->R, src2->R);
+ dst->G = gl::averageHalfFloat(src1->G, src2->G);
+ dst->B = gl::averageHalfFloat(src1->B, src2->B);
+}
+
+void A32B32G32R32F::readColor(gl::ColorF *dst, const A32B32G32R32F *src)
+{
+ dst->red = src->R;
+ dst->green = src->G;
+ dst->blue = src->B;
+ dst->alpha = src->A;
+}
+
+void A32B32G32R32F::writeColor(A32B32G32R32F *dst, const gl::ColorF *src)
+{
+ dst->R = src->red;
+ dst->G = src->green;
+ dst->B = src->blue;
+ dst->A = src->alpha;
+}
+
+void A32B32G32R32F::average(A32B32G32R32F *dst,
+ const A32B32G32R32F *src1,
+ const A32B32G32R32F *src2)
+{
+ dst->R = gl::average(src1->R, src2->R);
+ dst->G = gl::average(src1->G, src2->G);
+ dst->B = gl::average(src1->B, src2->B);
+ dst->A = gl::average(src1->A, src2->A);
+}
+
+void R32G32B32A32F::readColor(gl::ColorF *dst, const R32G32B32A32F *src)
+{
+ dst->red = src->R;
+ dst->green = src->G;
+ dst->blue = src->B;
+ dst->alpha = src->A;
+}
+
+void R32G32B32A32F::writeColor(R32G32B32A32F *dst, const gl::ColorF *src)
+{
+ dst->R = src->red;
+ dst->G = src->green;
+ dst->B = src->blue;
+ dst->A = src->alpha;
+}
+
+void R32G32B32A32F::average(R32G32B32A32F *dst,
+ const R32G32B32A32F *src1,
+ const R32G32B32A32F *src2)
+{
+ dst->R = gl::average(src1->R, src2->R);
+ dst->G = gl::average(src1->G, src2->G);
+ dst->B = gl::average(src1->B, src2->B);
+ dst->A = gl::average(src1->A, src2->A);
+}
+
+void R32F::readColor(gl::ColorF *dst, const R32F *src)
+{
+ dst->red = src->R;
+ dst->green = 0.0f;
+ dst->blue = 0.0f;
+ dst->alpha = 1.0f;
+}
+
+void R32F::writeColor(R32F *dst, const gl::ColorF *src)
+{
+ dst->R = src->red;
+}
+
+void R32F::average(R32F *dst, const R32F *src1, const R32F *src2)
+{
+ dst->R = gl::average(src1->R, src2->R);
+}
+
+void A32F::readColor(gl::ColorF *dst, const A32F *src)
+{
+ dst->red = 0.0f;
+ dst->green = 0.0f;
+ dst->blue = 0.0f;
+ dst->alpha = src->A;
+}
+
+void A32F::writeColor(A32F *dst, const gl::ColorF *src)
+{
+ dst->A = src->alpha;
+}
+
+void A32F::average(A32F *dst, const A32F *src1, const A32F *src2)
+{
+ dst->A = gl::average(src1->A, src2->A);
+}
+
+void L32F::readColor(gl::ColorF *dst, const L32F *src)
+{
+ dst->red = src->L;
+ dst->green = src->L;
+ dst->blue = src->L;
+ dst->alpha = 1.0f;
+}
+
+void L32F::writeColor(L32F *dst, const gl::ColorF *src)
+{
+ dst->L = src->red;
+}
+
+void L32F::average(L32F *dst, const L32F *src1, const L32F *src2)
+{
+ dst->L = gl::average(src1->L, src2->L);
+}
+
+void L32A32F::readColor(gl::ColorF *dst, const L32A32F *src)
+{
+ dst->red = src->L;
+ dst->green = src->L;
+ dst->blue = src->L;
+ dst->alpha = src->A;
+}
+
+void L32A32F::writeColor(L32A32F *dst, const gl::ColorF *src)
+{
+ dst->L = src->red;
+ dst->A = src->alpha;
+}
+
+void L32A32F::average(L32A32F *dst, const L32A32F *src1, const L32A32F *src2)
+{
+ dst->L = gl::average(src1->L, src2->L);
+ dst->A = gl::average(src1->A, src2->A);
+}
+
+void R32G32F::readColor(gl::ColorF *dst, const R32G32F *src)
+{
+ dst->red = src->R;
+ dst->green = src->G;
+ dst->blue = 0.0f;
+ dst->alpha = 1.0f;
+}
+
+void R32G32F::writeColor(R32G32F *dst, const gl::ColorF *src)
+{
+ dst->R = src->red;
+ dst->G = src->green;
+}
+
+void R32G32F::average(R32G32F *dst, const R32G32F *src1, const R32G32F *src2)
+{
+ dst->R = gl::average(src1->R, src2->R);
+ dst->G = gl::average(src1->G, src2->G);
+}
+
+void R32G32B32F::readColor(gl::ColorF *dst, const R32G32B32F *src)
+{
+ dst->red = src->R;
+ dst->green = src->G;
+ dst->blue = src->B;
+ dst->alpha = 1.0f;
+}
+
+void R32G32B32F::writeColor(R32G32B32F *dst, const gl::ColorF *src)
+{
+ dst->R = src->red;
+ dst->G = src->green;
+ dst->B = src->blue;
+}
+
+void R32G32B32F::average(R32G32B32F *dst, const R32G32B32F *src1, const R32G32B32F *src2)
+{
+ dst->R = gl::average(src1->R, src2->R);
+ dst->G = gl::average(src1->G, src2->G);
+ dst->B = gl::average(src1->B, src2->B);
+}
+
+void R10G10B10A2::readColor(gl::ColorUI *dst, const R10G10B10A2 *src)
+{
+ dst->red = src->R;
+ dst->green = src->G;
+ dst->blue = src->B;
+ dst->alpha = src->A;
+}
+
+void R10G10B10A2::readColor(gl::ColorF *dst, const R10G10B10A2 *src)
+{
+ dst->red = gl::normalizedToFloat<10>(src->R);
+ dst->green = gl::normalizedToFloat<10>(src->G);
+ dst->blue = gl::normalizedToFloat<10>(src->B);
+ dst->alpha = gl::normalizedToFloat<2>(src->A);
+}
+
+void R10G10B10A2::writeColor(R10G10B10A2 *dst, const gl::ColorUI *src)
+{
+ dst->R = static_cast<uint32_t>(src->red);
+ dst->G = static_cast<uint32_t>(src->green);
+ dst->B = static_cast<uint32_t>(src->blue);
+ dst->A = static_cast<uint32_t>(src->alpha);
+}
+
+void R10G10B10A2::writeColor(R10G10B10A2 *dst, const gl::ColorF *src)
+{
+ dst->R = gl::floatToNormalized<10, uint32_t>(src->red);
+ dst->G = gl::floatToNormalized<10, uint32_t>(src->green);
+ dst->B = gl::floatToNormalized<10, uint32_t>(src->blue);
+ dst->A = gl::floatToNormalized<2, uint32_t>(src->alpha);
+}
+
+void R10G10B10A2::average(R10G10B10A2 *dst, const R10G10B10A2 *src1, const R10G10B10A2 *src2)
+{
+ dst->R = gl::average(src1->R, src2->R);
+ dst->G = gl::average(src1->G, src2->G);
+ dst->B = gl::average(src1->B, src2->B);
+ dst->A = gl::average(src1->A, src2->A);
+}
+
+void R10G10B10A2S::readColor(gl::ColorI *dst, const R10G10B10A2S *src)
+{
+ dst->red = src->R;
+ dst->green = src->G;
+ dst->blue = src->B;
+ dst->alpha = src->A;
+}
+
+void R10G10B10A2S::readColor(gl::ColorF *dst, const R10G10B10A2S *src)
+{
+ dst->red = gl::normalizedToFloat<10>(src->R);
+ dst->green = gl::normalizedToFloat<10>(src->G);
+ dst->blue = gl::normalizedToFloat<10>(src->B);
+ dst->alpha = gl::normalizedToFloat<2>(src->A);
+}
+
+void R10G10B10A2S::writeColor(R10G10B10A2S *dst, const gl::ColorI *src)
+{
+ dst->R = static_cast<int32_t>(src->red);
+ dst->G = static_cast<int32_t>(src->green);
+ dst->B = static_cast<int32_t>(src->blue);
+ dst->A = static_cast<int32_t>(src->alpha);
+}
+
+void R10G10B10A2S::writeColor(R10G10B10A2S *dst, const gl::ColorF *src)
+{
+ dst->R = gl::floatToNormalized<10, int32_t>(src->red);
+ dst->G = gl::floatToNormalized<10, int32_t>(src->green);
+ dst->B = gl::floatToNormalized<10, int32_t>(src->blue);
+ dst->A = gl::floatToNormalized<2, int32_t>(src->alpha);
+}
+
+void R10G10B10A2S::average(R10G10B10A2S *dst, const R10G10B10A2S *src1, const R10G10B10A2S *src2)
+{
+ dst->R = gl::average(src1->R, src2->R);
+ dst->G = gl::average(src1->G, src2->G);
+ dst->B = gl::average(src1->B, src2->B);
+ dst->A = gl::average(src1->A, src2->A);
+}
+
+void R10G10B10X2::readColor(gl::ColorUI *dst, const R10G10B10X2 *src)
+{
+ dst->red = src->R;
+ dst->green = src->G;
+ dst->blue = src->B;
+ dst->alpha = 0x3;
+}
+
+void R10G10B10X2::readColor(gl::ColorF *dst, const R10G10B10X2 *src)
+{
+ dst->red = gl::normalizedToFloat<10>(src->R);
+ dst->green = gl::normalizedToFloat<10>(src->G);
+ dst->blue = gl::normalizedToFloat<10>(src->B);
+ dst->alpha = 1.0f;
+}
+
+void R10G10B10X2::writeColor(R10G10B10X2 *dst, const gl::ColorUI *src)
+{
+ dst->R = static_cast<uint32_t>(src->red);
+ dst->G = static_cast<uint32_t>(src->green);
+ dst->B = static_cast<uint32_t>(src->blue);
+}
+
+void R10G10B10X2::writeColor(R10G10B10X2 *dst, const gl::ColorF *src)
+{
+ dst->R = gl::floatToNormalized<10, uint32_t>(src->red);
+ dst->G = gl::floatToNormalized<10, uint32_t>(src->green);
+ dst->B = gl::floatToNormalized<10, uint32_t>(src->blue);
+}
+
+void R10G10B10X2::average(R10G10B10X2 *dst, const R10G10B10X2 *src1, const R10G10B10X2 *src2)
+{
+ dst->R = gl::average(src1->R, src2->R);
+ dst->G = gl::average(src1->G, src2->G);
+ dst->B = gl::average(src1->B, src2->B);
+}
+
+void B10G10R10A2::readColor(gl::ColorUI *dst, const B10G10R10A2 *src)
+{
+ dst->red = src->R;
+ dst->green = src->G;
+ dst->blue = src->B;
+ dst->alpha = src->A;
+}
+
+void B10G10R10A2::readColor(gl::ColorF *dst, const B10G10R10A2 *src)
+{
+ dst->red = gl::normalizedToFloat<10>(src->R);
+ dst->green = gl::normalizedToFloat<10>(src->G);
+ dst->blue = gl::normalizedToFloat<10>(src->B);
+ dst->alpha = gl::normalizedToFloat<2>(src->A);
+}
+
+void B10G10R10A2::writeColor(B10G10R10A2 *dst, const gl::ColorUI *src)
+{
+ dst->R = static_cast<uint32_t>(src->red);
+ dst->G = static_cast<uint32_t>(src->green);
+ dst->B = static_cast<uint32_t>(src->blue);
+ dst->A = static_cast<uint32_t>(src->alpha);
+}
+
+void B10G10R10A2::writeColor(B10G10R10A2 *dst, const gl::ColorF *src)
+{
+ dst->R = gl::floatToNormalized<10, uint32_t>(src->red);
+ dst->G = gl::floatToNormalized<10, uint32_t>(src->green);
+ dst->B = gl::floatToNormalized<10, uint32_t>(src->blue);
+ dst->A = gl::floatToNormalized<2, uint32_t>(src->alpha);
+}
+
+void B10G10R10A2::average(B10G10R10A2 *dst, const B10G10R10A2 *src1, const B10G10R10A2 *src2)
+{
+ dst->R = gl::average(src1->R, src2->R);
+ dst->G = gl::average(src1->G, src2->G);
+ dst->B = gl::average(src1->B, src2->B);
+ dst->A = gl::average(src1->A, src2->A);
+}
+
+void R9G9B9E5::readColor(gl::ColorF *dst, const R9G9B9E5 *src)
+{
+ gl::convert999E5toRGBFloats(gl::bitCast<uint32_t>(*src), &dst->red, &dst->green, &dst->blue);
+ dst->alpha = 1.0f;
+}
+
+void R9G9B9E5::writeColor(R9G9B9E5 *dst, const gl::ColorF *src)
+{
+ *reinterpret_cast<uint32_t *>(dst) =
+ gl::convertRGBFloatsTo999E5(src->red, src->green, src->blue);
+}
+
+void R9G9B9E5::average(R9G9B9E5 *dst, const R9G9B9E5 *src1, const R9G9B9E5 *src2)
+{
+ float r1, g1, b1;
+ gl::convert999E5toRGBFloats(*reinterpret_cast<const uint32_t *>(src1), &r1, &g1, &b1);
+
+ float r2, g2, b2;
+ gl::convert999E5toRGBFloats(*reinterpret_cast<const uint32_t *>(src2), &r2, &g2, &b2);
+
+ *reinterpret_cast<uint32_t *>(dst) =
+ gl::convertRGBFloatsTo999E5(gl::average(r1, r2), gl::average(g1, g2), gl::average(b1, b2));
+}
+
+void R11G11B10F::readColor(gl::ColorF *dst, const R11G11B10F *src)
+{
+ dst->red = gl::float11ToFloat32(src->R);
+ dst->green = gl::float11ToFloat32(src->G);
+ dst->blue = gl::float10ToFloat32(src->B);
+ dst->alpha = 1.0f;
+}
+
+void R11G11B10F::writeColor(R11G11B10F *dst, const gl::ColorF *src)
+{
+ dst->R = gl::float32ToFloat11(src->red);
+ dst->G = gl::float32ToFloat11(src->green);
+ dst->B = gl::float32ToFloat10(src->blue);
+}
+
+void R11G11B10F::average(R11G11B10F *dst, const R11G11B10F *src1, const R11G11B10F *src2)
+{
+ dst->R = gl::averageFloat11(src1->R, src2->R);
+ dst->G = gl::averageFloat11(src1->G, src2->G);
+ dst->B = gl::averageFloat10(src1->B, src2->B);
+}
+
+void D24S8::ReadDepthStencil(DepthStencil *dst, const D24S8 *src)
+{
+ dst->depth = gl::normalizedToFloat<24>(src->D);
+ dst->stencil = src->S;
+}
+
+void D24S8::WriteDepthStencil(D24S8 *dst, const DepthStencil *src)
+{
+ dst->D = gl::floatToNormalized<24, uint32_t>(static_cast<float>(src->depth));
+ dst->S = src->stencil & 0xFF;
+}
+
+void S8::ReadDepthStencil(DepthStencil *dst, const S8 *src)
+{
+ dst->depth = 0;
+ dst->stencil = src->S;
+}
+
+void S8::WriteDepthStencil(S8 *dst, const DepthStencil *src)
+{
+ dst->S = src->stencil & 0xFF;
+}
+
+void D16::ReadDepthStencil(DepthStencil *dst, const D16 *src)
+{
+ dst->depth = gl::normalizedToFloat(src->D);
+ dst->stencil = 0;
+}
+
+void D16::WriteDepthStencil(D16 *dst, const DepthStencil *src)
+{
+ dst->D = gl::floatToNormalized<uint16_t>(static_cast<float>(src->depth));
+}
+
+void D24X8::ReadDepthStencil(DepthStencil *dst, const D24X8 *src)
+{
+ dst->depth = gl::normalizedToFloat<24>(src->D & 0x00ffffff);
+}
+
+void D24X8::WriteDepthStencil(D24X8 *dst, const DepthStencil *src)
+{
+ dst->D = gl::floatToNormalized<24, uint32_t>(static_cast<float>(src->depth));
+}
+
+void D32F::ReadDepthStencil(DepthStencil *dst, const D32F *src)
+{
+ dst->depth = src->D;
+}
+
+void D32F::WriteDepthStencil(D32F *dst, const DepthStencil *src)
+{
+ dst->D = static_cast<float>(src->depth);
+}
+
+void D32::ReadDepthStencil(DepthStencil *dst, const D32 *src)
+{
+ dst->depth = gl::normalizedToFloat(src->D);
+ dst->stencil = 0;
+}
+
+void D32::WriteDepthStencil(D32 *dst, const DepthStencil *src)
+{
+ dst->D = gl::floatToNormalized<uint32_t>(static_cast<float>(src->depth));
+}
+
+void D32FS8X24::ReadDepthStencil(DepthStencil *dst, const D32FS8X24 *src)
+{
+ dst->depth = src->D;
+ dst->stencil = src->S;
+}
+
+void D32FS8X24::WriteDepthStencil(D32FS8X24 *dst, const DepthStencil *src)
+{
+ dst->D = static_cast<float>(src->depth);
+ dst->S = src->stencil & 0xFF;
+}
+} // namespace angle
diff --git a/gfx/angle/checkout/src/image_util/imageformats.h b/gfx/angle/checkout/src/image_util/imageformats.h
new file mode 100644
index 0000000000..58fe5fe1a2
--- /dev/null
+++ b/gfx/angle/checkout/src/image_util/imageformats.h
@@ -0,0 +1,816 @@
+//
+// Copyright 2013 The ANGLE Project Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+//
+
+// imageformats.h: Defines image format types with functions for mip generation
+// and copying.
+
+#ifndef IMAGEUTIL_IMAGEFORMATS_H_
+#define IMAGEUTIL_IMAGEFORMATS_H_
+
+#include "common/Color.h"
+
+#include <cstdint>
+
+namespace angle
+{
+
+// Several structures share functionality for reading, writing or mipmapping but the layout
+// must match the texture format which the structure represents. If collapsing or typedefing
+// structs in this header, make sure the functionality and memory layout is exactly the same.
+
+struct L8
+{
+ uint8_t L;
+
+ static void readColor(gl::ColorF *dst, const L8 *src);
+ static void writeColor(L8 *dst, const gl::ColorF *src);
+ static void average(L8 *dst, const L8 *src1, const L8 *src2);
+};
+
+struct R8
+{
+ uint8_t R;
+
+ static void readColor(gl::ColorF *dst, const R8 *src);
+ static void readColor(gl::ColorUI *dst, const R8 *src);
+ static void writeColor(R8 *dst, const gl::ColorF *src);
+ static void writeColor(R8 *dst, const gl::ColorUI *src);
+ static void average(R8 *dst, const R8 *src1, const R8 *src2);
+};
+
+struct A8
+{
+ uint8_t A;
+
+ static void readColor(gl::ColorF *dst, const A8 *src);
+ static void writeColor(A8 *dst, const gl::ColorF *src);
+ static void average(A8 *dst, const A8 *src1, const A8 *src2);
+};
+
+struct L8A8
+{
+ uint8_t L;
+ uint8_t A;
+
+ static void readColor(gl::ColorF *dst, const L8A8 *src);
+ static void writeColor(L8A8 *dst, const gl::ColorF *src);
+ static void average(L8A8 *dst, const L8A8 *src1, const L8A8 *src2);
+};
+
+struct A8L8
+{
+ uint8_t A;
+ uint8_t L;
+
+ static void readColor(gl::ColorF *dst, const A8L8 *src);
+ static void writeColor(A8L8 *dst, const gl::ColorF *src);
+ static void average(A8L8 *dst, const A8L8 *src1, const A8L8 *src2);
+};
+
+struct R8G8
+{
+ uint8_t R;
+ uint8_t G;
+
+ static void readColor(gl::ColorF *dst, const R8G8 *src);
+ static void readColor(gl::ColorUI *dst, const R8G8 *src);
+ static void writeColor(R8G8 *dst, const gl::ColorF *src);
+ static void writeColor(R8G8 *dst, const gl::ColorUI *src);
+ static void average(R8G8 *dst, const R8G8 *src1, const R8G8 *src2);
+};
+
+struct R8G8B8
+{
+ uint8_t R;
+ uint8_t G;
+ uint8_t B;
+
+ static void readColor(gl::ColorF *dst, const R8G8B8 *src);
+ static void readColor(gl::ColorUI *dst, const R8G8B8 *src);
+ static void writeColor(R8G8B8 *dst, const gl::ColorF *src);
+ static void writeColor(R8G8B8 *dst, const gl::ColorUI *src);
+ static void average(R8G8B8 *dst, const R8G8B8 *src1, const R8G8B8 *src2);
+};
+
+struct B8G8R8
+{
+ uint8_t B;
+ uint8_t G;
+ uint8_t R;
+
+ static void readColor(gl::ColorF *dst, const B8G8R8 *src);
+ static void readColor(gl::ColorUI *dst, const B8G8R8 *src);
+ static void writeColor(B8G8R8 *dst, const gl::ColorF *src);
+ static void writeColor(B8G8R8 *dst, const gl::ColorUI *src);
+ static void average(B8G8R8 *dst, const B8G8R8 *src1, const B8G8R8 *src2);
+};
+
+struct R5G6B5
+{
+ // OpenGL ES 2.0.25 spec Section 3.6.2: "Components are packed with the first component in the
+ // most significant bits of the bitfield, and successive component occupying progressively less
+ // significant locations"
+ uint16_t RGB;
+
+ static void readColor(gl::ColorF *dst, const R5G6B5 *src);
+ static void writeColor(R5G6B5 *dst, const gl::ColorF *src);
+ static void average(R5G6B5 *dst, const R5G6B5 *src1, const R5G6B5 *src2);
+};
+
+struct B5G6R5
+{
+ uint16_t BGR;
+
+ static void readColor(gl::ColorF *dst, const B5G6R5 *src);
+ static void writeColor(B5G6R5 *dst, const gl::ColorF *src);
+ static void average(B5G6R5 *dst, const B5G6R5 *src1, const B5G6R5 *src2);
+};
+
+struct A8R8G8B8
+{
+ uint8_t A;
+ uint8_t R;
+ uint8_t G;
+ uint8_t B;
+
+ static void readColor(gl::ColorF *dst, const A8R8G8B8 *src);
+ static void readColor(gl::ColorUI *dst, const A8R8G8B8 *src);
+ static void writeColor(A8R8G8B8 *dst, const gl::ColorF *src);
+ static void writeColor(A8R8G8B8 *dst, const gl::ColorUI *src);
+ static void average(A8R8G8B8 *dst, const A8R8G8B8 *src1, const A8R8G8B8 *src2);
+};
+
+struct R8G8B8A8
+{
+ uint8_t R;
+ uint8_t G;
+ uint8_t B;
+ uint8_t A;
+
+ static void readColor(gl::ColorF *dst, const R8G8B8A8 *src);
+ static void readColor(gl::ColorUI *dst, const R8G8B8A8 *src);
+ static void writeColor(R8G8B8A8 *dst, const gl::ColorF *src);
+ static void writeColor(R8G8B8A8 *dst, const gl::ColorUI *src);
+ static void average(R8G8B8A8 *dst, const R8G8B8A8 *src1, const R8G8B8A8 *src2);
+};
+
+struct R8G8B8A8SRGB
+{
+ uint8_t R;
+ uint8_t G;
+ uint8_t B;
+ uint8_t A;
+
+ static void readColor(gl::ColorF *dst, const R8G8B8A8SRGB *src);
+ static void writeColor(R8G8B8A8SRGB *dst, const gl::ColorF *src);
+ static void average(R8G8B8A8SRGB *dst, const R8G8B8A8SRGB *src1, const R8G8B8A8SRGB *src2);
+};
+
+struct B8G8R8A8
+{
+ uint8_t B;
+ uint8_t G;
+ uint8_t R;
+ uint8_t A;
+
+ static void readColor(gl::ColorF *dst, const B8G8R8A8 *src);
+ static void readColor(gl::ColorUI *dst, const B8G8R8A8 *src);
+ static void writeColor(B8G8R8A8 *dst, const gl::ColorF *src);
+ static void writeColor(B8G8R8A8 *dst, const gl::ColorUI *src);
+ static void average(B8G8R8A8 *dst, const B8G8R8A8 *src1, const B8G8R8A8 *src2);
+};
+
+struct B8G8R8X8
+{
+ uint8_t B;
+ uint8_t G;
+ uint8_t R;
+ uint8_t X;
+
+ static void readColor(gl::ColorF *dst, const B8G8R8X8 *src);
+ static void readColor(gl::ColorUI *dst, const B8G8R8X8 *src);
+ static void writeColor(B8G8R8X8 *dst, const gl::ColorF *src);
+ static void writeColor(B8G8R8X8 *dst, const gl::ColorUI *src);
+ static void average(B8G8R8X8 *dst, const B8G8R8X8 *src1, const B8G8R8X8 *src2);
+};
+
+struct R8G8B8X8
+{
+ uint8_t R;
+ uint8_t G;
+ uint8_t B;
+ uint8_t X;
+
+ static void readColor(gl::ColorF *dst, const R8G8B8X8 *src);
+ static void readColor(gl::ColorUI *dst, const R8G8B8X8 *src);
+ static void writeColor(R8G8B8X8 *dst, const gl::ColorF *src);
+ static void writeColor(R8G8B8X8 *dst, const gl::ColorUI *src);
+ static void average(R8G8B8X8 *dst, const R8G8B8X8 *src1, const R8G8B8X8 *src2);
+};
+
+struct A1R5G5B5
+{
+ uint16_t ARGB;
+
+ static void readColor(gl::ColorF *dst, const A1R5G5B5 *src);
+ static void writeColor(A1R5G5B5 *dst, const gl::ColorF *src);
+ static void average(A1R5G5B5 *dst, const A1R5G5B5 *src1, const A1R5G5B5 *src2);
+};
+
+struct R5G5B5A1
+{
+ // OpenGL ES 2.0.25 spec Section 3.6.2: "Components are packed with the first component in the
+ // most significant
+ // bits of the bitfield, and successive component occupying progressively less significant
+ // locations"
+ uint16_t RGBA;
+
+ static void readColor(gl::ColorF *dst, const R5G5B5A1 *src);
+ static void writeColor(R5G5B5A1 *dst, const gl::ColorF *src);
+ static void average(R5G5B5A1 *dst, const R5G5B5A1 *src1, const R5G5B5A1 *src2);
+};
+
+struct R4G4B4A4
+{
+ // OpenGL ES 2.0.25 spec Section 3.6.2: "Components are packed with the first component in the
+ // most significant
+ // bits of the bitfield, and successive component occupying progressively less significant
+ // locations"
+ uint16_t RGBA;
+
+ static void readColor(gl::ColorF *dst, const R4G4B4A4 *src);
+ static void writeColor(R4G4B4A4 *dst, const gl::ColorF *src);
+ static void average(R4G4B4A4 *dst, const R4G4B4A4 *src1, const R4G4B4A4 *src2);
+};
+
+struct A4R4G4B4
+{
+ uint16_t ARGB;
+
+ static void readColor(gl::ColorF *dst, const A4R4G4B4 *src);
+ static void writeColor(A4R4G4B4 *dst, const gl::ColorF *src);
+ static void average(A4R4G4B4 *dst, const A4R4G4B4 *src1, const A4R4G4B4 *src2);
+};
+
+struct R16
+{
+ uint16_t R;
+
+ static void readColor(gl::ColorF *dst, const R16 *src);
+ static void readColor(gl::ColorUI *dst, const R16 *src);
+ static void writeColor(R16 *dst, const gl::ColorF *src);
+ static void writeColor(R16 *dst, const gl::ColorUI *src);
+ static void average(R16 *dst, const R16 *src1, const R16 *src2);
+};
+
+struct R16G16
+{
+ uint16_t R;
+ uint16_t G;
+
+ static void readColor(gl::ColorF *dst, const R16G16 *src);
+ static void readColor(gl::ColorUI *dst, const R16G16 *src);
+ static void writeColor(R16G16 *dst, const gl::ColorF *src);
+ static void writeColor(R16G16 *dst, const gl::ColorUI *src);
+ static void average(R16G16 *dst, const R16G16 *src1, const R16G16 *src2);
+};
+
+struct R16G16B16
+{
+ uint16_t R;
+ uint16_t G;
+ uint16_t B;
+
+ static void readColor(gl::ColorF *dst, const R16G16B16 *src);
+ static void readColor(gl::ColorUI *dst, const R16G16B16 *src);
+ static void writeColor(R16G16B16 *dst, const gl::ColorF *src);
+ static void writeColor(R16G16B16 *dst, const gl::ColorUI *src);
+ static void average(R16G16B16 *dst, const R16G16B16 *src1, const R16G16B16 *src2);
+};
+
+struct R16G16B16A16
+{
+ uint16_t R;
+ uint16_t G;
+ uint16_t B;
+ uint16_t A;
+
+ static void readColor(gl::ColorF *dst, const R16G16B16A16 *src);
+ static void readColor(gl::ColorUI *dst, const R16G16B16A16 *src);
+ static void writeColor(R16G16B16A16 *dst, const gl::ColorF *src);
+ static void writeColor(R16G16B16A16 *dst, const gl::ColorUI *src);
+ static void average(R16G16B16A16 *dst, const R16G16B16A16 *src1, const R16G16B16A16 *src2);
+};
+
+struct R32
+{
+ uint32_t R;
+
+ static void readColor(gl::ColorF *dst, const R32 *src);
+ static void readColor(gl::ColorUI *dst, const R32 *src);
+ static void writeColor(R32 *dst, const gl::ColorF *src);
+ static void writeColor(R32 *dst, const gl::ColorUI *src);
+ static void average(R32 *dst, const R32 *src1, const R32 *src2);
+};
+
+struct R32G32
+{
+ uint32_t R;
+ uint32_t G;
+
+ static void readColor(gl::ColorF *dst, const R32G32 *src);
+ static void readColor(gl::ColorUI *dst, const R32G32 *src);
+ static void writeColor(R32G32 *dst, const gl::ColorF *src);
+ static void writeColor(R32G32 *dst, const gl::ColorUI *src);
+ static void average(R32G32 *dst, const R32G32 *src1, const R32G32 *src2);
+};
+
+struct R32G32B32
+{
+ uint32_t R;
+ uint32_t G;
+ uint32_t B;
+
+ static void readColor(gl::ColorF *dst, const R32G32B32 *src);
+ static void readColor(gl::ColorUI *dst, const R32G32B32 *src);
+ static void writeColor(R32G32B32 *dst, const gl::ColorF *src);
+ static void writeColor(R32G32B32 *dst, const gl::ColorUI *src);
+ static void average(R32G32B32 *dst, const R32G32B32 *src1, const R32G32B32 *src2);
+};
+
+struct R32G32B32A32
+{
+ uint32_t R;
+ uint32_t G;
+ uint32_t B;
+ uint32_t A;
+
+ static void readColor(gl::ColorF *dst, const R32G32B32A32 *src);
+ static void readColor(gl::ColorUI *dst, const R32G32B32A32 *src);
+ static void writeColor(R32G32B32A32 *dst, const gl::ColorF *src);
+ static void writeColor(R32G32B32A32 *dst, const gl::ColorUI *src);
+ static void average(R32G32B32A32 *dst, const R32G32B32A32 *src1, const R32G32B32A32 *src2);
+};
+
+struct R8S
+{
+ int8_t R;
+
+ static void readColor(gl::ColorF *dst, const R8S *src);
+ static void readColor(gl::ColorI *dst, const R8S *src);
+ static void writeColor(R8S *dst, const gl::ColorF *src);
+ static void writeColor(R8S *dst, const gl::ColorI *src);
+ static void average(R8S *dst, const R8S *src1, const R8S *src2);
+};
+
+struct R8G8S
+{
+ int8_t R;
+ int8_t G;
+
+ static void readColor(gl::ColorF *dst, const R8G8S *src);
+ static void readColor(gl::ColorI *dst, const R8G8S *src);
+ static void writeColor(R8G8S *dst, const gl::ColorF *src);
+ static void writeColor(R8G8S *dst, const gl::ColorI *src);
+ static void average(R8G8S *dst, const R8G8S *src1, const R8G8S *src2);
+};
+
+struct R8G8B8S
+{
+ int8_t R;
+ int8_t G;
+ int8_t B;
+
+ static void readColor(gl::ColorF *dst, const R8G8B8S *src);
+ static void readColor(gl::ColorI *dst, const R8G8B8S *src);
+ static void writeColor(R8G8B8S *dst, const gl::ColorF *src);
+ static void writeColor(R8G8B8S *dst, const gl::ColorI *src);
+ static void average(R8G8B8S *dst, const R8G8B8S *src1, const R8G8B8S *src2);
+};
+
+struct R8G8B8A8S
+{
+ int8_t R;
+ int8_t G;
+ int8_t B;
+ int8_t A;
+
+ static void readColor(gl::ColorF *dst, const R8G8B8A8S *src);
+ static void readColor(gl::ColorI *dst, const R8G8B8A8S *src);
+ static void writeColor(R8G8B8A8S *dst, const gl::ColorF *src);
+ static void writeColor(R8G8B8A8S *dst, const gl::ColorI *src);
+ static void average(R8G8B8A8S *dst, const R8G8B8A8S *src1, const R8G8B8A8S *src2);
+};
+
+struct R16S
+{
+ int16_t R;
+
+ static void readColor(gl::ColorF *dst, const R16S *src);
+ static void readColor(gl::ColorI *dst, const R16S *src);
+ static void writeColor(R16S *dst, const gl::ColorF *src);
+ static void writeColor(R16S *dst, const gl::ColorI *src);
+ static void average(R16S *dst, const R16S *src1, const R16S *src2);
+};
+
+struct R16G16S
+{
+ int16_t R;
+ int16_t G;
+
+ static void readColor(gl::ColorF *dst, const R16G16S *src);
+ static void readColor(gl::ColorI *dst, const R16G16S *src);
+ static void writeColor(R16G16S *dst, const gl::ColorF *src);
+ static void writeColor(R16G16S *dst, const gl::ColorI *src);
+ static void average(R16G16S *dst, const R16G16S *src1, const R16G16S *src2);
+};
+
+struct R16G16B16S
+{
+ int16_t R;
+ int16_t G;
+ int16_t B;
+
+ static void readColor(gl::ColorF *dst, const R16G16B16S *src);
+ static void readColor(gl::ColorI *dst, const R16G16B16S *src);
+ static void writeColor(R16G16B16S *dst, const gl::ColorF *src);
+ static void writeColor(R16G16B16S *dst, const gl::ColorI *src);
+ static void average(R16G16B16S *dst, const R16G16B16S *src1, const R16G16B16S *src2);
+};
+
+struct R16G16B16A16S
+{
+ int16_t R;
+ int16_t G;
+ int16_t B;
+ int16_t A;
+
+ static void readColor(gl::ColorF *dst, const R16G16B16A16S *src);
+ static void readColor(gl::ColorI *dst, const R16G16B16A16S *src);
+ static void writeColor(R16G16B16A16S *dst, const gl::ColorF *src);
+ static void writeColor(R16G16B16A16S *dst, const gl::ColorI *src);
+ static void average(R16G16B16A16S *dst, const R16G16B16A16S *src1, const R16G16B16A16S *src2);
+};
+
+struct R32S
+{
+ int32_t R;
+
+ static void readColor(gl::ColorF *dst, const R32S *src);
+ static void readColor(gl::ColorI *dst, const R32S *src);
+ static void writeColor(R32S *dst, const gl::ColorF *src);
+ static void writeColor(R32S *dst, const gl::ColorI *src);
+ static void average(R32S *dst, const R32S *src1, const R32S *src2);
+};
+
+struct R32G32S
+{
+ int32_t R;
+ int32_t G;
+
+ static void readColor(gl::ColorF *dst, const R32G32S *src);
+ static void readColor(gl::ColorI *dst, const R32G32S *src);
+ static void writeColor(R32G32S *dst, const gl::ColorF *src);
+ static void writeColor(R32G32S *dst, const gl::ColorI *src);
+ static void average(R32G32S *dst, const R32G32S *src1, const R32G32S *src2);
+};
+
+struct R32G32B32S
+{
+ int32_t R;
+ int32_t G;
+ int32_t B;
+
+ static void readColor(gl::ColorF *dst, const R32G32B32S *src);
+ static void readColor(gl::ColorI *dst, const R32G32B32S *src);
+ static void writeColor(R32G32B32S *dst, const gl::ColorF *src);
+ static void writeColor(R32G32B32S *dst, const gl::ColorI *src);
+ static void average(R32G32B32S *dst, const R32G32B32S *src1, const R32G32B32S *src2);
+};
+
+struct R32G32B32A32S
+{
+ int32_t R;
+ int32_t G;
+ int32_t B;
+ int32_t A;
+
+ static void readColor(gl::ColorF *dst, const R32G32B32A32S *src);
+ static void readColor(gl::ColorI *dst, const R32G32B32A32S *src);
+ static void writeColor(R32G32B32A32S *dst, const gl::ColorF *src);
+ static void writeColor(R32G32B32A32S *dst, const gl::ColorI *src);
+ static void average(R32G32B32A32S *dst, const R32G32B32A32S *src1, const R32G32B32A32S *src2);
+};
+
+struct A16B16G16R16F
+{
+ uint16_t A;
+ uint16_t R;
+ uint16_t G;
+ uint16_t B;
+
+ static void readColor(gl::ColorF *dst, const A16B16G16R16F *src);
+ static void writeColor(A16B16G16R16F *dst, const gl::ColorF *src);
+ static void average(A16B16G16R16F *dst, const A16B16G16R16F *src1, const A16B16G16R16F *src2);
+};
+
+struct R16G16B16A16F
+{
+ uint16_t R;
+ uint16_t G;
+ uint16_t B;
+ uint16_t A;
+
+ static void readColor(gl::ColorF *dst, const R16G16B16A16F *src);
+ static void writeColor(R16G16B16A16F *dst, const gl::ColorF *src);
+ static void average(R16G16B16A16F *dst, const R16G16B16A16F *src1, const R16G16B16A16F *src2);
+};
+
+struct R16F
+{
+ uint16_t R;
+
+ static void readColor(gl::ColorF *dst, const R16F *src);
+ static void writeColor(R16F *dst, const gl::ColorF *src);
+ static void average(R16F *dst, const R16F *src1, const R16F *src2);
+};
+
+struct A16F
+{
+ uint16_t A;
+
+ static void readColor(gl::ColorF *dst, const A16F *src);
+ static void writeColor(A16F *dst, const gl::ColorF *src);
+ static void average(A16F *dst, const A16F *src1, const A16F *src2);
+};
+
+struct L16F
+{
+ uint16_t L;
+
+ static void readColor(gl::ColorF *dst, const L16F *src);
+ static void writeColor(L16F *dst, const gl::ColorF *src);
+ static void average(L16F *dst, const L16F *src1, const L16F *src2);
+};
+
+struct L16A16F
+{
+ uint16_t L;
+ uint16_t A;
+
+ static void readColor(gl::ColorF *dst, const L16A16F *src);
+ static void writeColor(L16A16F *dst, const gl::ColorF *src);
+ static void average(L16A16F *dst, const L16A16F *src1, const L16A16F *src2);
+};
+
+struct R16G16F
+{
+ uint16_t R;
+ uint16_t G;
+
+ static void readColor(gl::ColorF *dst, const R16G16F *src);
+ static void writeColor(R16G16F *dst, const gl::ColorF *src);
+ static void average(R16G16F *dst, const R16G16F *src1, const R16G16F *src2);
+};
+
+struct R16G16B16F
+{
+ uint16_t R;
+ uint16_t G;
+ uint16_t B;
+
+ static void readColor(gl::ColorF *dst, const R16G16B16F *src);
+ static void writeColor(R16G16B16F *dst, const gl::ColorF *src);
+ static void average(R16G16B16F *dst, const R16G16B16F *src1, const R16G16B16F *src2);
+};
+
+struct A32B32G32R32F
+{
+ float A;
+ float R;
+ float G;
+ float B;
+
+ static void readColor(gl::ColorF *dst, const A32B32G32R32F *src);
+ static void writeColor(A32B32G32R32F *dst, const gl::ColorF *src);
+ static void average(A32B32G32R32F *dst, const A32B32G32R32F *src1, const A32B32G32R32F *src2);
+};
+
+struct R32G32B32A32F
+{
+ float R;
+ float G;
+ float B;
+ float A;
+
+ static void readColor(gl::ColorF *dst, const R32G32B32A32F *src);
+ static void writeColor(R32G32B32A32F *dst, const gl::ColorF *src);
+ static void average(R32G32B32A32F *dst, const R32G32B32A32F *src1, const R32G32B32A32F *src2);
+};
+
+struct R32F
+{
+ float R;
+
+ static void readColor(gl::ColorF *dst, const R32F *src);
+ static void writeColor(R32F *dst, const gl::ColorF *src);
+ static void average(R32F *dst, const R32F *src1, const R32F *src2);
+};
+
+struct A32F
+{
+ float A;
+
+ static void readColor(gl::ColorF *dst, const A32F *src);
+ static void writeColor(A32F *dst, const gl::ColorF *src);
+ static void average(A32F *dst, const A32F *src1, const A32F *src2);
+};
+
+struct L32F
+{
+ float L;
+
+ static void readColor(gl::ColorF *dst, const L32F *src);
+ static void writeColor(L32F *dst, const gl::ColorF *src);
+ static void average(L32F *dst, const L32F *src1, const L32F *src2);
+};
+
+struct L32A32F
+{
+ float L;
+ float A;
+
+ static void readColor(gl::ColorF *dst, const L32A32F *src);
+ static void writeColor(L32A32F *dst, const gl::ColorF *src);
+ static void average(L32A32F *dst, const L32A32F *src1, const L32A32F *src2);
+};
+
+struct R32G32F
+{
+ float R;
+ float G;
+
+ static void readColor(gl::ColorF *dst, const R32G32F *src);
+ static void writeColor(R32G32F *dst, const gl::ColorF *src);
+ static void average(R32G32F *dst, const R32G32F *src1, const R32G32F *src2);
+};
+
+struct R32G32B32F
+{
+ float R;
+ float G;
+ float B;
+
+ static void readColor(gl::ColorF *dst, const R32G32B32F *src);
+ static void writeColor(R32G32B32F *dst, const gl::ColorF *src);
+ static void average(R32G32B32F *dst, const R32G32B32F *src1, const R32G32B32F *src2);
+};
+
+struct R10G10B10A2
+{
+ uint32_t R : 10;
+ uint32_t G : 10;
+ uint32_t B : 10;
+ uint32_t A : 2;
+
+ static void readColor(gl::ColorF *dst, const R10G10B10A2 *src);
+ static void readColor(gl::ColorUI *dst, const R10G10B10A2 *src);
+ static void writeColor(R10G10B10A2 *dst, const gl::ColorF *src);
+ static void writeColor(R10G10B10A2 *dst, const gl::ColorUI *src);
+ static void average(R10G10B10A2 *dst, const R10G10B10A2 *src1, const R10G10B10A2 *src2);
+};
+static_assert(sizeof(R10G10B10A2) == 4, "R10G10B10A2 struct not 32-bits.");
+
+struct R10G10B10A2S
+{
+ int32_t R : 10;
+ int32_t G : 10;
+ int32_t B : 10;
+ int32_t A : 2;
+
+ static void readColor(gl::ColorF *dst, const R10G10B10A2S *src);
+ static void readColor(gl::ColorI *dst, const R10G10B10A2S *src);
+ static void writeColor(R10G10B10A2S *dst, const gl::ColorF *src);
+ static void writeColor(R10G10B10A2S *dst, const gl::ColorI *src);
+ static void average(R10G10B10A2S *dst, const R10G10B10A2S *src1, const R10G10B10A2S *src2);
+};
+static_assert(sizeof(R10G10B10A2S) == 4, "R10G10B10A2S struct not 32-bits.");
+
+struct R10G10B10X2
+{
+ uint32_t R : 10;
+ uint32_t G : 10;
+ uint32_t B : 10;
+
+ static void readColor(gl::ColorF *dst, const R10G10B10X2 *src);
+ static void readColor(gl::ColorUI *dst, const R10G10B10X2 *src);
+ static void writeColor(R10G10B10X2 *dst, const gl::ColorF *src);
+ static void writeColor(R10G10B10X2 *dst, const gl::ColorUI *src);
+ static void average(R10G10B10X2 *dst, const R10G10B10X2 *src1, const R10G10B10X2 *src2);
+};
+static_assert(sizeof(R10G10B10X2) == 4, "R10G10B10X2 struct not 32-bits.");
+
+struct B10G10R10A2
+{
+ uint32_t B : 10;
+ uint32_t G : 10;
+ uint32_t R : 10;
+ uint32_t A : 2;
+
+ static void readColor(gl::ColorF *dst, const B10G10R10A2 *src);
+ static void readColor(gl::ColorUI *dst, const B10G10R10A2 *src);
+ static void writeColor(B10G10R10A2 *dst, const gl::ColorF *src);
+ static void writeColor(B10G10R10A2 *dst, const gl::ColorUI *src);
+ static void average(B10G10R10A2 *dst, const B10G10R10A2 *src1, const B10G10R10A2 *src2);
+};
+static_assert(sizeof(B10G10R10A2) == 4, "B10G10R10A2 struct not 32-bits.");
+
+struct R9G9B9E5
+{
+ uint32_t R : 9;
+ uint32_t G : 9;
+ uint32_t B : 9;
+ uint32_t E : 5;
+
+ static void readColor(gl::ColorF *dst, const R9G9B9E5 *src);
+ static void writeColor(R9G9B9E5 *dst, const gl::ColorF *src);
+ static void average(R9G9B9E5 *dst, const R9G9B9E5 *src1, const R9G9B9E5 *src2);
+};
+static_assert(sizeof(R9G9B9E5) == 4, "R9G9B9E5 struct not 32-bits.");
+
+struct R11G11B10F
+{
+ uint32_t R : 11;
+ uint32_t G : 11;
+ uint32_t B : 10;
+
+ static void readColor(gl::ColorF *dst, const R11G11B10F *src);
+ static void writeColor(R11G11B10F *dst, const gl::ColorF *src);
+ static void average(R11G11B10F *dst, const R11G11B10F *src1, const R11G11B10F *src2);
+};
+static_assert(sizeof(R11G11B10F) == 4, "R11G11B10F struct not 32-bits.");
+
+struct D24S8
+{
+ uint32_t S : 8;
+ uint32_t D : 24;
+
+ static void ReadDepthStencil(DepthStencil *dst, const D24S8 *src);
+ static void WriteDepthStencil(D24S8 *dst, const DepthStencil *src);
+};
+
+struct S8
+{
+ uint8_t S;
+
+ static void ReadDepthStencil(DepthStencil *dst, const S8 *src);
+ static void WriteDepthStencil(S8 *dst, const DepthStencil *src);
+};
+
+struct D16
+{
+ uint16_t D;
+
+ static void ReadDepthStencil(DepthStencil *dst, const D16 *src);
+ static void WriteDepthStencil(D16 *dst, const DepthStencil *src);
+};
+
+struct D24X8
+{
+ uint32_t D : 24;
+ uint32_t X : 8;
+
+ static void ReadDepthStencil(DepthStencil *dst, const D24X8 *src);
+ static void WriteDepthStencil(D24X8 *dst, const DepthStencil *src);
+};
+
+struct D32F
+{
+ float D;
+
+ static void ReadDepthStencil(DepthStencil *dst, const D32F *src);
+ static void WriteDepthStencil(D32F *dst, const DepthStencil *src);
+};
+
+struct D32
+{
+ uint32_t D;
+
+ static void ReadDepthStencil(DepthStencil *dst, const D32 *src);
+ static void WriteDepthStencil(D32 *dst, const DepthStencil *src);
+};
+
+struct D32FS8X24
+{
+ float D;
+ uint32_t S;
+
+ static void ReadDepthStencil(DepthStencil *dst, const D32FS8X24 *src);
+ static void WriteDepthStencil(D32FS8X24 *dst, const DepthStencil *src);
+};
+} // namespace angle
+
+#endif // IMAGEUTIL_IMAGEFORMATS_H_
diff --git a/gfx/angle/checkout/src/image_util/loadimage.cpp b/gfx/angle/checkout/src/image_util/loadimage.cpp
new file mode 100644
index 0000000000..97169c00f5
--- /dev/null
+++ b/gfx/angle/checkout/src/image_util/loadimage.cpp
@@ -0,0 +1,1796 @@
+//
+// Copyright 2013 The ANGLE Project Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+//
+
+// angle_loadimage.cpp: Defines image loading functions.
+
+#include "image_util/loadimage.h"
+
+#include "common/mathutil.h"
+#include "common/platform.h"
+#include "image_util/imageformats.h"
+
+namespace angle
+{
+
+void LoadA8ToRGBA8(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+#if defined(ANGLE_USE_SSE)
+ if (gl::supportsSSE2())
+ {
+ __m128i zeroWide = _mm_setzero_si128();
+
+ for (size_t z = 0; z < depth; z++)
+ {
+ for (size_t y = 0; y < height; y++)
+ {
+ const uint8_t *source =
+ priv::OffsetDataPointer<uint8_t>(input, y, z, inputRowPitch, inputDepthPitch);
+ uint32_t *dest = priv::OffsetDataPointer<uint32_t>(output, y, z, outputRowPitch,
+ outputDepthPitch);
+
+ size_t x = 0;
+
+ // Make output writes aligned
+ for (; ((reinterpret_cast<intptr_t>(&dest[x]) & 0xF) != 0 && x < width); x++)
+ {
+ dest[x] = static_cast<uint32_t>(source[x]) << 24;
+ }
+
+ for (; x + 7 < width; x += 8)
+ {
+ __m128i sourceData =
+ _mm_loadl_epi64(reinterpret_cast<const __m128i *>(&source[x]));
+ // Interleave each byte to 16bit, make the lower byte to zero
+ sourceData = _mm_unpacklo_epi8(zeroWide, sourceData);
+ // Interleave each 16bit to 32bit, make the lower 16bit to zero
+ __m128i lo = _mm_unpacklo_epi16(zeroWide, sourceData);
+ __m128i hi = _mm_unpackhi_epi16(zeroWide, sourceData);
+
+ _mm_store_si128(reinterpret_cast<__m128i *>(&dest[x]), lo);
+ _mm_store_si128(reinterpret_cast<__m128i *>(&dest[x + 4]), hi);
+ }
+
+ // Handle the remainder
+ for (; x < width; x++)
+ {
+ dest[x] = static_cast<uint32_t>(source[x]) << 24;
+ }
+ }
+ }
+
+ return;
+ }
+#endif
+
+ for (size_t z = 0; z < depth; z++)
+ {
+ for (size_t y = 0; y < height; y++)
+ {
+ const uint8_t *source =
+ priv::OffsetDataPointer<uint8_t>(input, y, z, inputRowPitch, inputDepthPitch);
+ uint32_t *dest =
+ priv::OffsetDataPointer<uint32_t>(output, y, z, outputRowPitch, outputDepthPitch);
+ for (size_t x = 0; x < width; x++)
+ {
+ dest[x] = static_cast<uint32_t>(source[x]) << 24;
+ }
+ }
+ }
+}
+
+void LoadA8ToBGRA8(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ // Same as loading to RGBA
+ LoadA8ToRGBA8(width, height, depth, input, inputRowPitch, inputDepthPitch, output,
+ outputRowPitch, outputDepthPitch);
+}
+
+void LoadA32FToRGBA32F(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ for (size_t z = 0; z < depth; z++)
+ {
+ for (size_t y = 0; y < height; y++)
+ {
+ const float *source =
+ priv::OffsetDataPointer<float>(input, y, z, inputRowPitch, inputDepthPitch);
+ float *dest =
+ priv::OffsetDataPointer<float>(output, y, z, outputRowPitch, outputDepthPitch);
+ for (size_t x = 0; x < width; x++)
+ {
+ dest[4 * x + 0] = 0.0f;
+ dest[4 * x + 1] = 0.0f;
+ dest[4 * x + 2] = 0.0f;
+ dest[4 * x + 3] = source[x];
+ }
+ }
+ }
+}
+
+void LoadA16FToRGBA16F(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ for (size_t z = 0; z < depth; z++)
+ {
+ for (size_t y = 0; y < height; y++)
+ {
+ const uint16_t *source =
+ priv::OffsetDataPointer<uint16_t>(input, y, z, inputRowPitch, inputDepthPitch);
+ uint16_t *dest =
+ priv::OffsetDataPointer<uint16_t>(output, y, z, outputRowPitch, outputDepthPitch);
+ for (size_t x = 0; x < width; x++)
+ {
+ dest[4 * x + 0] = 0;
+ dest[4 * x + 1] = 0;
+ dest[4 * x + 2] = 0;
+ dest[4 * x + 3] = source[x];
+ }
+ }
+ }
+}
+
+void LoadL8ToRGBA8(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ for (size_t z = 0; z < depth; z++)
+ {
+ for (size_t y = 0; y < height; y++)
+ {
+ const uint8_t *source =
+ priv::OffsetDataPointer<uint8_t>(input, y, z, inputRowPitch, inputDepthPitch);
+ uint8_t *dest =
+ priv::OffsetDataPointer<uint8_t>(output, y, z, outputRowPitch, outputDepthPitch);
+ for (size_t x = 0; x < width; x++)
+ {
+ uint8_t sourceVal = source[x];
+ dest[4 * x + 0] = sourceVal;
+ dest[4 * x + 1] = sourceVal;
+ dest[4 * x + 2] = sourceVal;
+ dest[4 * x + 3] = 0xFF;
+ }
+ }
+ }
+}
+
+void LoadL8ToBGRA8(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ // Same as loading to RGBA
+ LoadL8ToRGBA8(width, height, depth, input, inputRowPitch, inputDepthPitch, output,
+ outputRowPitch, outputDepthPitch);
+}
+
+void LoadL32FToRGBA32F(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ for (size_t z = 0; z < depth; z++)
+ {
+ for (size_t y = 0; y < height; y++)
+ {
+ const float *source =
+ priv::OffsetDataPointer<float>(input, y, z, inputRowPitch, inputDepthPitch);
+ float *dest =
+ priv::OffsetDataPointer<float>(output, y, z, outputRowPitch, outputDepthPitch);
+ for (size_t x = 0; x < width; x++)
+ {
+ dest[4 * x + 0] = source[x];
+ dest[4 * x + 1] = source[x];
+ dest[4 * x + 2] = source[x];
+ dest[4 * x + 3] = 1.0f;
+ }
+ }
+ }
+}
+
+void LoadL16FToRGBA16F(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ for (size_t z = 0; z < depth; z++)
+ {
+ for (size_t y = 0; y < height; y++)
+ {
+ const uint16_t *source =
+ priv::OffsetDataPointer<uint16_t>(input, y, z, inputRowPitch, inputDepthPitch);
+ uint16_t *dest =
+ priv::OffsetDataPointer<uint16_t>(output, y, z, outputRowPitch, outputDepthPitch);
+ for (size_t x = 0; x < width; x++)
+ {
+ dest[4 * x + 0] = source[x];
+ dest[4 * x + 1] = source[x];
+ dest[4 * x + 2] = source[x];
+ dest[4 * x + 3] = gl::Float16One;
+ }
+ }
+ }
+}
+
+void LoadLA8ToRGBA8(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ for (size_t z = 0; z < depth; z++)
+ {
+ for (size_t y = 0; y < height; y++)
+ {
+ const uint8_t *source =
+ priv::OffsetDataPointer<uint8_t>(input, y, z, inputRowPitch, inputDepthPitch);
+ uint8_t *dest =
+ priv::OffsetDataPointer<uint8_t>(output, y, z, outputRowPitch, outputDepthPitch);
+ for (size_t x = 0; x < width; x++)
+ {
+ dest[4 * x + 0] = source[2 * x + 0];
+ dest[4 * x + 1] = source[2 * x + 0];
+ dest[4 * x + 2] = source[2 * x + 0];
+ dest[4 * x + 3] = source[2 * x + 1];
+ }
+ }
+ }
+}
+
+void LoadLA8ToBGRA8(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ // Same as loading to RGBA
+ LoadLA8ToRGBA8(width, height, depth, input, inputRowPitch, inputDepthPitch, output,
+ outputRowPitch, outputDepthPitch);
+}
+
+void LoadLA32FToRGBA32F(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ for (size_t z = 0; z < depth; z++)
+ {
+ for (size_t y = 0; y < height; y++)
+ {
+ const float *source =
+ priv::OffsetDataPointer<float>(input, y, z, inputRowPitch, inputDepthPitch);
+ float *dest =
+ priv::OffsetDataPointer<float>(output, y, z, outputRowPitch, outputDepthPitch);
+ for (size_t x = 0; x < width; x++)
+ {
+ dest[4 * x + 0] = source[2 * x + 0];
+ dest[4 * x + 1] = source[2 * x + 0];
+ dest[4 * x + 2] = source[2 * x + 0];
+ dest[4 * x + 3] = source[2 * x + 1];
+ }
+ }
+ }
+}
+
+void LoadLA16FToRGBA16F(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ for (size_t z = 0; z < depth; z++)
+ {
+ for (size_t y = 0; y < height; y++)
+ {
+ const uint16_t *source =
+ priv::OffsetDataPointer<uint16_t>(input, y, z, inputRowPitch, inputDepthPitch);
+ uint16_t *dest =
+ priv::OffsetDataPointer<uint16_t>(output, y, z, outputRowPitch, outputDepthPitch);
+ for (size_t x = 0; x < width; x++)
+ {
+ dest[4 * x + 0] = source[2 * x + 0];
+ dest[4 * x + 1] = source[2 * x + 0];
+ dest[4 * x + 2] = source[2 * x + 0];
+ dest[4 * x + 3] = source[2 * x + 1];
+ }
+ }
+ }
+}
+
+void LoadRGB8ToBGR565(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ for (size_t z = 0; z < depth; z++)
+ {
+ for (size_t y = 0; y < height; y++)
+ {
+ const uint8_t *source =
+ priv::OffsetDataPointer<uint8_t>(input, y, z, inputRowPitch, inputDepthPitch);
+ uint16_t *dest =
+ priv::OffsetDataPointer<uint16_t>(output, y, z, outputRowPitch, outputDepthPitch);
+ for (size_t x = 0; x < width; x++)
+ {
+ uint8_t r8 = source[x * 3 + 0];
+ uint8_t g8 = source[x * 3 + 1];
+ uint8_t b8 = source[x * 3 + 2];
+ auto r5 = static_cast<uint16_t>(r8 >> 3);
+ auto g6 = static_cast<uint16_t>(g8 >> 2);
+ auto b5 = static_cast<uint16_t>(b8 >> 3);
+ dest[x] = (r5 << 11) | (g6 << 5) | b5;
+ }
+ }
+ }
+}
+
+void LoadRGB565ToBGR565(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ for (size_t z = 0; z < depth; z++)
+ {
+ for (size_t y = 0; y < height; y++)
+ {
+ const uint16_t *source =
+ priv::OffsetDataPointer<uint16_t>(input, y, z, inputRowPitch, inputDepthPitch);
+ uint16_t *dest =
+ priv::OffsetDataPointer<uint16_t>(output, y, z, outputRowPitch, outputDepthPitch);
+ for (size_t x = 0; x < width; x++)
+ {
+ // The GL type RGB is packed with with red in the MSB, while the D3D11 type BGR
+ // is packed with red in the LSB
+ auto rgb = source[x];
+ uint16_t r5 = gl::getShiftedData<5, 11>(rgb);
+ uint16_t g6 = gl::getShiftedData<6, 5>(rgb);
+ uint16_t b5 = gl::getShiftedData<5, 0>(rgb);
+ dest[x] = (r5 << 11) | (g6 << 5) | b5;
+ }
+ }
+ }
+}
+
+void LoadRGB8ToBGRX8(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ for (size_t z = 0; z < depth; z++)
+ {
+ for (size_t y = 0; y < height; y++)
+ {
+ const uint8_t *source =
+ priv::OffsetDataPointer<uint8_t>(input, y, z, inputRowPitch, inputDepthPitch);
+ uint8_t *dest =
+ priv::OffsetDataPointer<uint8_t>(output, y, z, outputRowPitch, outputDepthPitch);
+ for (size_t x = 0; x < width; x++)
+ {
+ dest[4 * x + 0] = source[x * 3 + 2];
+ dest[4 * x + 1] = source[x * 3 + 1];
+ dest[4 * x + 2] = source[x * 3 + 0];
+ dest[4 * x + 3] = 0xFF;
+ }
+ }
+ }
+}
+
+void LoadRG8ToBGRX8(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ for (size_t z = 0; z < depth; z++)
+ {
+ for (size_t y = 0; y < height; y++)
+ {
+ const uint8_t *source =
+ priv::OffsetDataPointer<uint8_t>(input, y, z, inputRowPitch, inputDepthPitch);
+ uint8_t *dest =
+ priv::OffsetDataPointer<uint8_t>(output, y, z, outputRowPitch, outputDepthPitch);
+ for (size_t x = 0; x < width; x++)
+ {
+ dest[4 * x + 0] = 0x00;
+ dest[4 * x + 1] = source[x * 2 + 1];
+ dest[4 * x + 2] = source[x * 2 + 0];
+ dest[4 * x + 3] = 0xFF;
+ }
+ }
+ }
+}
+
+void LoadR8ToBGRX8(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ for (size_t z = 0; z < depth; z++)
+ {
+ for (size_t y = 0; y < height; y++)
+ {
+ const uint8_t *source =
+ priv::OffsetDataPointer<uint8_t>(input, y, z, inputRowPitch, inputDepthPitch);
+ uint8_t *dest =
+ priv::OffsetDataPointer<uint8_t>(output, y, z, outputRowPitch, outputDepthPitch);
+ for (size_t x = 0; x < width; x++)
+ {
+ dest[4 * x + 0] = 0x00;
+ dest[4 * x + 1] = 0x00;
+ dest[4 * x + 2] = source[x];
+ dest[4 * x + 3] = 0xFF;
+ }
+ }
+ }
+}
+
+void LoadR5G6B5ToBGRA8(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ for (size_t z = 0; z < depth; z++)
+ {
+ for (size_t y = 0; y < height; y++)
+ {
+ const uint16_t *source =
+ priv::OffsetDataPointer<uint16_t>(input, y, z, inputRowPitch, inputDepthPitch);
+ uint8_t *dest =
+ priv::OffsetDataPointer<uint8_t>(output, y, z, outputRowPitch, outputDepthPitch);
+ for (size_t x = 0; x < width; x++)
+ {
+ uint16_t rgb = source[x];
+ dest[4 * x + 0] =
+ static_cast<uint8_t>(((rgb & 0x001F) << 3) | ((rgb & 0x001F) >> 2));
+ dest[4 * x + 1] =
+ static_cast<uint8_t>(((rgb & 0x07E0) >> 3) | ((rgb & 0x07E0) >> 9));
+ dest[4 * x + 2] =
+ static_cast<uint8_t>(((rgb & 0xF800) >> 8) | ((rgb & 0xF800) >> 13));
+ dest[4 * x + 3] = 0xFF;
+ }
+ }
+ }
+}
+
+void LoadR5G6B5ToRGBA8(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ for (size_t z = 0; z < depth; z++)
+ {
+ for (size_t y = 0; y < height; y++)
+ {
+ const uint16_t *source =
+ priv::OffsetDataPointer<uint16_t>(input, y, z, inputRowPitch, inputDepthPitch);
+ uint8_t *dest =
+ priv::OffsetDataPointer<uint8_t>(output, y, z, outputRowPitch, outputDepthPitch);
+ for (size_t x = 0; x < width; x++)
+ {
+ uint16_t rgb = source[x];
+ dest[4 * x + 0] =
+ static_cast<uint8_t>(((rgb & 0xF800) >> 8) | ((rgb & 0xF800) >> 13));
+ dest[4 * x + 1] =
+ static_cast<uint8_t>(((rgb & 0x07E0) >> 3) | ((rgb & 0x07E0) >> 9));
+ dest[4 * x + 2] =
+ static_cast<uint8_t>(((rgb & 0x001F) << 3) | ((rgb & 0x001F) >> 2));
+ dest[4 * x + 3] = 0xFF;
+ }
+ }
+ }
+}
+
+void LoadRGBA8ToBGRA8(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+#if defined(ANGLE_USE_SSE)
+ if (gl::supportsSSE2())
+ {
+ __m128i brMask = _mm_set1_epi32(0x00ff00ff);
+
+ for (size_t z = 0; z < depth; z++)
+ {
+ for (size_t y = 0; y < height; y++)
+ {
+ const uint32_t *source =
+ priv::OffsetDataPointer<uint32_t>(input, y, z, inputRowPitch, inputDepthPitch);
+ uint32_t *dest = priv::OffsetDataPointer<uint32_t>(output, y, z, outputRowPitch,
+ outputDepthPitch);
+
+ size_t x = 0;
+
+ // Make output writes aligned
+ for (; ((reinterpret_cast<intptr_t>(&dest[x]) & 15) != 0) && x < width; x++)
+ {
+ uint32_t rgba = source[x];
+ dest[x] = (ANGLE_ROTL(rgba, 16) & 0x00ff00ff) | (rgba & 0xff00ff00);
+ }
+
+ for (; x + 3 < width; x += 4)
+ {
+ __m128i sourceData =
+ _mm_loadu_si128(reinterpret_cast<const __m128i *>(&source[x]));
+ // Mask out g and a, which don't change
+ __m128i gaComponents = _mm_andnot_si128(brMask, sourceData);
+ // Mask out b and r
+ __m128i brComponents = _mm_and_si128(sourceData, brMask);
+ // Swap b and r
+ __m128i brSwapped = _mm_shufflehi_epi16(
+ _mm_shufflelo_epi16(brComponents, _MM_SHUFFLE(2, 3, 0, 1)),
+ _MM_SHUFFLE(2, 3, 0, 1));
+ __m128i result = _mm_or_si128(gaComponents, brSwapped);
+ _mm_store_si128(reinterpret_cast<__m128i *>(&dest[x]), result);
+ }
+
+ // Perform leftover writes
+ for (; x < width; x++)
+ {
+ uint32_t rgba = source[x];
+ dest[x] = (ANGLE_ROTL(rgba, 16) & 0x00ff00ff) | (rgba & 0xff00ff00);
+ }
+ }
+ }
+
+ return;
+ }
+#endif
+
+ for (size_t z = 0; z < depth; z++)
+ {
+ for (size_t y = 0; y < height; y++)
+ {
+ const uint32_t *source =
+ priv::OffsetDataPointer<uint32_t>(input, y, z, inputRowPitch, inputDepthPitch);
+ uint32_t *dest =
+ priv::OffsetDataPointer<uint32_t>(output, y, z, outputRowPitch, outputDepthPitch);
+ for (size_t x = 0; x < width; x++)
+ {
+ uint32_t rgba = source[x];
+ dest[x] = (ANGLE_ROTL(rgba, 16) & 0x00ff00ff) | (rgba & 0xff00ff00);
+ }
+ }
+ }
+}
+
+void LoadRGBA8ToBGRA4(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ for (size_t z = 0; z < depth; z++)
+ {
+ for (size_t y = 0; y < height; y++)
+ {
+ const uint32_t *source =
+ priv::OffsetDataPointer<uint32_t>(input, y, z, inputRowPitch, inputDepthPitch);
+ uint16_t *dest =
+ priv::OffsetDataPointer<uint16_t>(output, y, z, outputRowPitch, outputDepthPitch);
+ for (size_t x = 0; x < width; x++)
+ {
+ uint32_t rgba8 = source[x];
+ auto r4 = static_cast<uint16_t>((rgba8 & 0x000000FF) >> 4);
+ auto g4 = static_cast<uint16_t>((rgba8 & 0x0000FF00) >> 12);
+ auto b4 = static_cast<uint16_t>((rgba8 & 0x00FF0000) >> 20);
+ auto a4 = static_cast<uint16_t>((rgba8 & 0xFF000000) >> 28);
+ dest[x] = (a4 << 12) | (r4 << 8) | (g4 << 4) | b4;
+ }
+ }
+ }
+}
+
+void LoadRGBA8ToRGBA4(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ for (size_t z = 0; z < depth; z++)
+ {
+ for (size_t y = 0; y < height; y++)
+ {
+ const uint32_t *source =
+ priv::OffsetDataPointer<uint32_t>(input, y, z, inputRowPitch, inputDepthPitch);
+ uint16_t *dest =
+ priv::OffsetDataPointer<uint16_t>(output, y, z, outputRowPitch, outputDepthPitch);
+ for (size_t x = 0; x < width; x++)
+ {
+ uint32_t rgba8 = source[x];
+ auto r4 = static_cast<uint16_t>((rgba8 & 0x000000FF) >> 4);
+ auto g4 = static_cast<uint16_t>((rgba8 & 0x0000FF00) >> 12);
+ auto b4 = static_cast<uint16_t>((rgba8 & 0x00FF0000) >> 20);
+ auto a4 = static_cast<uint16_t>((rgba8 & 0xFF000000) >> 28);
+ dest[x] = (r4 << 12) | (g4 << 8) | (b4 << 4) | a4;
+ }
+ }
+ }
+}
+
+void LoadRGBA4ToARGB4(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ for (size_t z = 0; z < depth; z++)
+ {
+ for (size_t y = 0; y < height; y++)
+ {
+ const uint16_t *source =
+ priv::OffsetDataPointer<uint16_t>(input, y, z, inputRowPitch, inputDepthPitch);
+ uint16_t *dest =
+ priv::OffsetDataPointer<uint16_t>(output, y, z, outputRowPitch, outputDepthPitch);
+ for (size_t x = 0; x < width; x++)
+ {
+ dest[x] = ANGLE_ROTR16(source[x], 4);
+ }
+ }
+ }
+}
+
+void LoadRGBA4ToBGRA8(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ for (size_t z = 0; z < depth; z++)
+ {
+ for (size_t y = 0; y < height; y++)
+ {
+ const uint16_t *source =
+ priv::OffsetDataPointer<uint16_t>(input, y, z, inputRowPitch, inputDepthPitch);
+ uint8_t *dest =
+ priv::OffsetDataPointer<uint8_t>(output, y, z, outputRowPitch, outputDepthPitch);
+ for (size_t x = 0; x < width; x++)
+ {
+ uint16_t rgba = source[x];
+ dest[4 * x + 0] =
+ static_cast<uint8_t>(((rgba & 0x00F0) << 0) | ((rgba & 0x00F0) >> 4));
+ dest[4 * x + 1] =
+ static_cast<uint8_t>(((rgba & 0x0F00) >> 4) | ((rgba & 0x0F00) >> 8));
+ dest[4 * x + 2] =
+ static_cast<uint8_t>(((rgba & 0xF000) >> 8) | ((rgba & 0xF000) >> 12));
+ dest[4 * x + 3] =
+ static_cast<uint8_t>(((rgba & 0x000F) << 4) | ((rgba & 0x000F) >> 0));
+ }
+ }
+ }
+}
+
+void LoadRGBA4ToRGBA8(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ for (size_t z = 0; z < depth; z++)
+ {
+ for (size_t y = 0; y < height; y++)
+ {
+ const uint16_t *source =
+ priv::OffsetDataPointer<uint16_t>(input, y, z, inputRowPitch, inputDepthPitch);
+ uint8_t *dest =
+ priv::OffsetDataPointer<uint8_t>(output, y, z, outputRowPitch, outputDepthPitch);
+ for (size_t x = 0; x < width; x++)
+ {
+ uint16_t rgba = source[x];
+ dest[4 * x + 0] =
+ static_cast<uint8_t>(((rgba & 0xF000) >> 8) | ((rgba & 0xF000) >> 12));
+ dest[4 * x + 1] =
+ static_cast<uint8_t>(((rgba & 0x0F00) >> 4) | ((rgba & 0x0F00) >> 8));
+ dest[4 * x + 2] =
+ static_cast<uint8_t>(((rgba & 0x00F0) << 0) | ((rgba & 0x00F0) >> 4));
+ dest[4 * x + 3] =
+ static_cast<uint8_t>(((rgba & 0x000F) << 4) | ((rgba & 0x000F) >> 0));
+ }
+ }
+ }
+}
+
+void LoadBGRA4ToBGRA8(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ for (size_t z = 0; z < depth; z++)
+ {
+ for (size_t y = 0; y < height; y++)
+ {
+ const uint16_t *source =
+ priv::OffsetDataPointer<uint16_t>(input, y, z, inputRowPitch, inputDepthPitch);
+ uint8_t *dest =
+ priv::OffsetDataPointer<uint8_t>(output, y, z, outputRowPitch, outputDepthPitch);
+ for (size_t x = 0; x < width; x++)
+ {
+ uint16_t bgra = source[x];
+ dest[4 * x + 0] =
+ static_cast<uint8_t>(((bgra & 0xF000) >> 8) | ((bgra & 0xF000) >> 12));
+ dest[4 * x + 1] =
+ static_cast<uint8_t>(((bgra & 0x0F00) >> 4) | ((bgra & 0x0F00) >> 8));
+ dest[4 * x + 2] =
+ static_cast<uint8_t>(((bgra & 0x00F0) << 0) | ((bgra & 0x00F0) >> 4));
+ dest[4 * x + 3] =
+ static_cast<uint8_t>(((bgra & 0x000F) << 4) | ((bgra & 0x000F) >> 0));
+ }
+ }
+ }
+}
+
+void LoadRGBA8ToBGR5A1(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ for (size_t z = 0; z < depth; z++)
+ {
+ for (size_t y = 0; y < height; y++)
+ {
+ const uint32_t *source =
+ priv::OffsetDataPointer<uint32_t>(input, y, z, inputRowPitch, inputDepthPitch);
+ uint16_t *dest =
+ priv::OffsetDataPointer<uint16_t>(output, y, z, outputRowPitch, outputDepthPitch);
+ for (size_t x = 0; x < width; x++)
+ {
+ uint32_t rgba8 = source[x];
+ auto r5 = static_cast<uint16_t>((rgba8 & 0x000000FF) >> 3);
+ auto g5 = static_cast<uint16_t>((rgba8 & 0x0000FF00) >> 11);
+ auto b5 = static_cast<uint16_t>((rgba8 & 0x00FF0000) >> 19);
+ auto a1 = static_cast<uint16_t>((rgba8 & 0xFF000000) >> 31);
+ dest[x] = (a1 << 15) | (r5 << 10) | (g5 << 5) | b5;
+ }
+ }
+ }
+}
+
+void LoadRGBA8ToRGB5A1(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ for (size_t z = 0; z < depth; z++)
+ {
+ for (size_t y = 0; y < height; y++)
+ {
+ const uint32_t *source =
+ priv::OffsetDataPointer<uint32_t>(input, y, z, inputRowPitch, inputDepthPitch);
+ uint16_t *dest =
+ priv::OffsetDataPointer<uint16_t>(output, y, z, outputRowPitch, outputDepthPitch);
+ for (size_t x = 0; x < width; x++)
+ {
+ uint32_t rgba8 = source[x];
+ auto r5 = static_cast<uint16_t>((rgba8 & 0x000000FF) >> 3);
+ auto g5 = static_cast<uint16_t>((rgba8 & 0x0000FF00) >> 11);
+ auto b5 = static_cast<uint16_t>((rgba8 & 0x00FF0000) >> 19);
+ auto a1 = static_cast<uint16_t>((rgba8 & 0xFF000000) >> 31);
+ dest[x] = (r5 << 11) | (g5 << 6) | (b5 << 1) | a1;
+ }
+ }
+ }
+}
+
+void LoadRGB10A2ToBGR5A1(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ for (size_t z = 0; z < depth; z++)
+ {
+ for (size_t y = 0; y < height; y++)
+ {
+ const R10G10B10A2 *source =
+ priv::OffsetDataPointer<R10G10B10A2>(input, y, z, inputRowPitch, inputDepthPitch);
+ uint16_t *dest =
+ priv::OffsetDataPointer<uint16_t>(output, y, z, outputRowPitch, outputDepthPitch);
+ for (size_t x = 0; x < width; x++)
+ {
+ R10G10B10A2 rgb10a2 = source[x];
+
+ uint16_t r5 = static_cast<uint16_t>(rgb10a2.R >> 5u);
+ uint16_t g5 = static_cast<uint16_t>(rgb10a2.G >> 5u);
+ uint16_t b5 = static_cast<uint16_t>(rgb10a2.B >> 5u);
+ uint16_t a1 = static_cast<uint16_t>(rgb10a2.A >> 1u);
+
+ dest[x] = (a1 << 15) | (r5 << 10) | (g5 << 5) | b5;
+ }
+ }
+ }
+}
+
+void LoadRGB10A2ToRGB5A1(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ for (size_t z = 0; z < depth; z++)
+ {
+ for (size_t y = 0; y < height; y++)
+ {
+ const R10G10B10A2 *source =
+ priv::OffsetDataPointer<R10G10B10A2>(input, y, z, inputRowPitch, inputDepthPitch);
+ uint16_t *dest =
+ priv::OffsetDataPointer<uint16_t>(output, y, z, outputRowPitch, outputDepthPitch);
+ for (size_t x = 0; x < width; x++)
+ {
+ R10G10B10A2 rgb10a2 = source[x];
+
+ uint16_t r5 = static_cast<uint16_t>(rgb10a2.R >> 5u);
+ uint16_t g5 = static_cast<uint16_t>(rgb10a2.G >> 5u);
+ uint16_t b5 = static_cast<uint16_t>(rgb10a2.B >> 5u);
+ uint16_t a1 = static_cast<uint16_t>(rgb10a2.A >> 1u);
+
+ dest[x] = (r5 << 11) | (g5 << 6) | (b5 << 1) | a1;
+ }
+ }
+ }
+}
+
+void LoadRGB5A1ToA1RGB5(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ for (size_t z = 0; z < depth; z++)
+ {
+ for (size_t y = 0; y < height; y++)
+ {
+ const uint16_t *source =
+ priv::OffsetDataPointer<uint16_t>(input, y, z, inputRowPitch, inputDepthPitch);
+ uint16_t *dest =
+ priv::OffsetDataPointer<uint16_t>(output, y, z, outputRowPitch, outputDepthPitch);
+ for (size_t x = 0; x < width; x++)
+ {
+ dest[x] = ANGLE_ROTR16(source[x], 1);
+ }
+ }
+ }
+}
+
+void LoadRGB5A1ToBGR5A1(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ for (size_t z = 0; z < depth; z++)
+ {
+ for (size_t y = 0; y < height; y++)
+ {
+ const uint16_t *source =
+ priv::OffsetDataPointer<uint16_t>(input, y, z, inputRowPitch, inputDepthPitch);
+ uint16_t *dest =
+ priv::OffsetDataPointer<uint16_t>(output, y, z, outputRowPitch, outputDepthPitch);
+ for (size_t x = 0; x < width; x++)
+ {
+ uint16_t rgba = source[x];
+ auto r5 = static_cast<uint16_t>((rgba & 0xF800) >> 11);
+ auto g5 = static_cast<uint16_t>((rgba & 0x07c0) >> 6);
+ auto b5 = static_cast<uint16_t>((rgba & 0x003e) >> 1);
+ auto a1 = static_cast<uint16_t>((rgba & 0x0001));
+ dest[x] = (b5 << 11) | (g5 << 6) | (r5 << 1) | a1;
+ }
+ }
+ }
+}
+
+void LoadRGB5A1ToBGRA8(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ for (size_t z = 0; z < depth; z++)
+ {
+ for (size_t y = 0; y < height; y++)
+ {
+ const uint16_t *source =
+ priv::OffsetDataPointer<uint16_t>(input, y, z, inputRowPitch, inputDepthPitch);
+ uint8_t *dest =
+ priv::OffsetDataPointer<uint8_t>(output, y, z, outputRowPitch, outputDepthPitch);
+ for (size_t x = 0; x < width; x++)
+ {
+ uint16_t rgba = source[x];
+ dest[4 * x + 0] =
+ static_cast<uint8_t>(((rgba & 0x003E) << 2) | ((rgba & 0x003E) >> 3));
+ dest[4 * x + 1] =
+ static_cast<uint8_t>(((rgba & 0x07C0) >> 3) | ((rgba & 0x07C0) >> 8));
+ dest[4 * x + 2] =
+ static_cast<uint8_t>(((rgba & 0xF800) >> 8) | ((rgba & 0xF800) >> 13));
+ dest[4 * x + 3] = static_cast<uint8_t>((rgba & 0x0001) ? 0xFF : 0);
+ }
+ }
+ }
+}
+
+void LoadRGB5A1ToRGBA8(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ for (size_t z = 0; z < depth; z++)
+ {
+ for (size_t y = 0; y < height; y++)
+ {
+ const uint16_t *source =
+ priv::OffsetDataPointer<uint16_t>(input, y, z, inputRowPitch, inputDepthPitch);
+ uint8_t *dest =
+ priv::OffsetDataPointer<uint8_t>(output, y, z, outputRowPitch, outputDepthPitch);
+ for (size_t x = 0; x < width; x++)
+ {
+ uint16_t rgba = source[x];
+ dest[4 * x + 0] =
+ static_cast<uint8_t>(((rgba & 0xF800) >> 8) | ((rgba & 0xF800) >> 13));
+ dest[4 * x + 1] =
+ static_cast<uint8_t>(((rgba & 0x07C0) >> 3) | ((rgba & 0x07C0) >> 8));
+ dest[4 * x + 2] =
+ static_cast<uint8_t>(((rgba & 0x003E) << 2) | ((rgba & 0x003E) >> 3));
+ dest[4 * x + 3] = static_cast<uint8_t>((rgba & 0x0001) ? 0xFF : 0);
+ }
+ }
+ }
+}
+
+void LoadBGR5A1ToBGRA8(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ for (size_t z = 0; z < depth; z++)
+ {
+ for (size_t y = 0; y < height; y++)
+ {
+ const uint16_t *source =
+ priv::OffsetDataPointer<uint16_t>(input, y, z, inputRowPitch, inputDepthPitch);
+ uint8_t *dest =
+ priv::OffsetDataPointer<uint8_t>(output, y, z, outputRowPitch, outputDepthPitch);
+ for (size_t x = 0; x < width; x++)
+ {
+ uint16_t bgra = source[x];
+ dest[4 * x + 0] =
+ static_cast<uint8_t>(((bgra & 0xF800) >> 8) | ((bgra & 0xF800) >> 13));
+ dest[4 * x + 1] =
+ static_cast<uint8_t>(((bgra & 0x07C0) >> 3) | ((bgra & 0x07C0) >> 8));
+ dest[4 * x + 2] =
+ static_cast<uint8_t>(((bgra & 0x003E) << 2) | ((bgra & 0x003E) >> 3));
+ dest[4 * x + 3] = static_cast<uint8_t>((bgra & 0x0001) ? 0xFF : 0);
+ }
+ }
+ }
+}
+
+void LoadRGB10A2ToRGBA8(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ for (size_t z = 0; z < depth; z++)
+ {
+ for (size_t y = 0; y < height; y++)
+ {
+ const uint32_t *source =
+ priv::OffsetDataPointer<uint32_t>(input, y, z, inputRowPitch, inputDepthPitch);
+ uint8_t *dest =
+ priv::OffsetDataPointer<uint8_t>(output, y, z, outputRowPitch, outputDepthPitch);
+ for (size_t x = 0; x < width; x++)
+ {
+ uint32_t rgba = source[x];
+ dest[4 * x + 0] = static_cast<uint8_t>((rgba & 0x000003FF) >> 2);
+ dest[4 * x + 1] = static_cast<uint8_t>((rgba & 0x000FFC00) >> 12);
+ dest[4 * x + 2] = static_cast<uint8_t>((rgba & 0x3FF00000) >> 22);
+ dest[4 * x + 3] = static_cast<uint8_t>(((rgba & 0xC0000000) >> 30) * 0x55);
+ }
+ }
+ }
+}
+
+void LoadRGB10A2ToRGB10X2(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ for (size_t z = 0; z < depth; z++)
+ {
+ for (size_t y = 0; y < height; y++)
+ {
+ const uint32_t *source =
+ priv::OffsetDataPointer<uint32_t>(input, y, z, inputRowPitch, inputDepthPitch);
+ uint32_t *dest =
+ priv::OffsetDataPointer<uint32_t>(output, y, z, outputRowPitch, outputDepthPitch);
+ for (size_t x = 0; x < width; x++)
+ {
+ dest[x] = source[x] | 0xC0000000;
+ }
+ }
+ }
+}
+
+void LoadRGB16FToRGB9E5(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ for (size_t z = 0; z < depth; z++)
+ {
+ for (size_t y = 0; y < height; y++)
+ {
+ const uint16_t *source =
+ priv::OffsetDataPointer<uint16_t>(input, y, z, inputRowPitch, inputDepthPitch);
+ uint32_t *dest =
+ priv::OffsetDataPointer<uint32_t>(output, y, z, outputRowPitch, outputDepthPitch);
+ for (size_t x = 0; x < width; x++)
+ {
+ dest[x] = gl::convertRGBFloatsTo999E5(gl::float16ToFloat32(source[x * 3 + 0]),
+ gl::float16ToFloat32(source[x * 3 + 1]),
+ gl::float16ToFloat32(source[x * 3 + 2]));
+ }
+ }
+ }
+}
+
+void LoadRGB32FToRGB9E5(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ for (size_t z = 0; z < depth; z++)
+ {
+ for (size_t y = 0; y < height; y++)
+ {
+ const float *source =
+ priv::OffsetDataPointer<float>(input, y, z, inputRowPitch, inputDepthPitch);
+ uint32_t *dest =
+ priv::OffsetDataPointer<uint32_t>(output, y, z, outputRowPitch, outputDepthPitch);
+ for (size_t x = 0; x < width; x++)
+ {
+ dest[x] = gl::convertRGBFloatsTo999E5(source[x * 3 + 0], source[x * 3 + 1],
+ source[x * 3 + 2]);
+ }
+ }
+ }
+}
+
+void LoadRGB16FToRG11B10F(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ for (size_t z = 0; z < depth; z++)
+ {
+ for (size_t y = 0; y < height; y++)
+ {
+ const uint16_t *source =
+ priv::OffsetDataPointer<uint16_t>(input, y, z, inputRowPitch, inputDepthPitch);
+ uint32_t *dest =
+ priv::OffsetDataPointer<uint32_t>(output, y, z, outputRowPitch, outputDepthPitch);
+ for (size_t x = 0; x < width; x++)
+ {
+ dest[x] = (gl::float32ToFloat11(gl::float16ToFloat32(source[x * 3 + 0])) << 0) |
+ (gl::float32ToFloat11(gl::float16ToFloat32(source[x * 3 + 1])) << 11) |
+ (gl::float32ToFloat10(gl::float16ToFloat32(source[x * 3 + 2])) << 22);
+ }
+ }
+ }
+}
+
+void LoadRGB32FToRG11B10F(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ for (size_t z = 0; z < depth; z++)
+ {
+ for (size_t y = 0; y < height; y++)
+ {
+ const float *source =
+ priv::OffsetDataPointer<float>(input, y, z, inputRowPitch, inputDepthPitch);
+ uint32_t *dest =
+ priv::OffsetDataPointer<uint32_t>(output, y, z, outputRowPitch, outputDepthPitch);
+ for (size_t x = 0; x < width; x++)
+ {
+ dest[x] = (gl::float32ToFloat11(source[x * 3 + 0]) << 0) |
+ (gl::float32ToFloat11(source[x * 3 + 1]) << 11) |
+ (gl::float32ToFloat10(source[x * 3 + 2]) << 22);
+ }
+ }
+ }
+}
+
+void LoadG8R24ToR24G8(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ for (size_t z = 0; z < depth; z++)
+ {
+ for (size_t y = 0; y < height; y++)
+ {
+ const uint32_t *source =
+ priv::OffsetDataPointer<uint32_t>(input, y, z, inputRowPitch, inputDepthPitch);
+ uint32_t *dest =
+ priv::OffsetDataPointer<uint32_t>(output, y, z, outputRowPitch, outputDepthPitch);
+ for (size_t x = 0; x < width; x++)
+ {
+ uint32_t d = source[x] >> 8;
+ uint8_t s = source[x] & 0xFF;
+ dest[x] = d | (s << 24);
+ }
+ }
+ }
+}
+
+void LoadD24S8ToD32FS8X24(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ for (size_t z = 0; z < depth; z++)
+ {
+ for (size_t y = 0; y < height; y++)
+ {
+ const uint32_t *source =
+ priv::OffsetDataPointer<uint32_t>(input, y, z, inputRowPitch, inputDepthPitch);
+ float *destDepth =
+ priv::OffsetDataPointer<float>(output, y, z, outputRowPitch, outputDepthPitch);
+ uint32_t *destStencil =
+ priv::OffsetDataPointer<uint32_t>(output, y, z, outputRowPitch, outputDepthPitch) +
+ 1;
+ for (size_t x = 0; x < width; x++)
+ {
+ destDepth[x * 2] = (source[x] & 0xFFFFFF) / static_cast<float>(0xFFFFFF);
+ destStencil[x * 2] = source[x] & 0xFF000000;
+ }
+ }
+ }
+}
+
+void LoadD24S8ToD32F(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ for (size_t z = 0; z < depth; z++)
+ {
+ for (size_t y = 0; y < height; y++)
+ {
+ const uint32_t *source =
+ priv::OffsetDataPointer<uint32_t>(input, y, z, inputRowPitch, inputDepthPitch);
+ float *destDepth =
+ priv::OffsetDataPointer<float>(output, y, z, outputRowPitch, outputDepthPitch);
+ for (size_t x = 0; x < width; x++)
+ {
+ uint32_t sourcePixel = (source[x] >> 8) & 0xFFFFFF;
+ destDepth[x] = sourcePixel / static_cast<float>(0xFFFFFF);
+ }
+ }
+ }
+}
+
+void LoadD32ToD32FX32(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ for (size_t z = 0; z < depth; z++)
+ {
+ for (size_t y = 0; y < height; y++)
+ {
+ const uint32_t *source =
+ priv::OffsetDataPointer<uint32_t>(input, y, z, inputRowPitch, inputDepthPitch);
+ float *destDepth =
+ priv::OffsetDataPointer<float>(output, y, z, outputRowPitch, outputDepthPitch);
+ for (size_t x = 0; x < width; x++)
+ {
+ destDepth[x * 2] = source[x] / static_cast<float>(0xFFFFFFFF);
+ }
+ }
+ }
+}
+
+void LoadD32ToD32F(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ for (size_t z = 0; z < depth; z++)
+ {
+ for (size_t y = 0; y < height; y++)
+ {
+ const uint32_t *source =
+ priv::OffsetDataPointer<uint32_t>(input, y, z, inputRowPitch, inputDepthPitch);
+ float *destDepth =
+ priv::OffsetDataPointer<float>(output, y, z, outputRowPitch, outputDepthPitch);
+ for (size_t x = 0; x < width; x++)
+ {
+ uint32_t sourcePixel = source[x];
+ destDepth[x] = sourcePixel / static_cast<float>(0xFFFFFFFF);
+ }
+ }
+ }
+}
+
+void LoadD32FToD32F(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ for (size_t z = 0; z < depth; z++)
+ {
+ for (size_t y = 0; y < height; y++)
+ {
+ const float *source =
+ priv::OffsetDataPointer<float>(input, y, z, inputRowPitch, inputDepthPitch);
+ float *dest =
+ priv::OffsetDataPointer<float>(output, y, z, outputRowPitch, outputDepthPitch);
+ for (size_t x = 0; x < width; x++)
+ {
+ dest[x] = gl::clamp01(source[x]);
+ }
+ }
+ }
+}
+
+void LoadD32FS8X24ToD24S8(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ for (size_t z = 0; z < depth; z++)
+ {
+ for (size_t y = 0; y < height; y++)
+ {
+ const float *sourceDepth =
+ priv::OffsetDataPointer<float>(input, y, z, inputRowPitch, inputDepthPitch);
+ const uint32_t *sourceStencil =
+ priv::OffsetDataPointer<uint32_t>(input, y, z, inputRowPitch, inputDepthPitch) + 1;
+ uint32_t *dest =
+ priv::OffsetDataPointer<uint32_t>(output, y, z, outputRowPitch, outputDepthPitch);
+ for (size_t x = 0; x < width; x++)
+ {
+ uint32_t d = static_cast<uint32_t>(gl::clamp01(sourceDepth[x * 2]) * 0xFFFFFF);
+ uint32_t s = sourceStencil[x * 2] & 0xFF000000;
+ dest[x] = d | s;
+ }
+ }
+ }
+}
+
+void LoadX24S8ToS8(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ for (size_t z = 0; z < depth; z++)
+ {
+ for (size_t y = 0; y < height; y++)
+ {
+ const uint32_t *source = reinterpret_cast<const uint32_t *>(
+ input + (y * inputRowPitch) + (z * inputDepthPitch));
+ uint8_t *destStencil =
+ reinterpret_cast<uint8_t *>(output + (y * outputRowPitch) + (z * outputDepthPitch));
+ for (size_t x = 0; x < width; x++)
+ {
+ destStencil[x] = (source[x] & 0xFF);
+ }
+ }
+ }
+}
+
+void LoadX32S8ToS8(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ for (size_t z = 0; z < depth; z++)
+ {
+ for (size_t y = 0; y < height; y++)
+ {
+ const uint32_t *source = reinterpret_cast<const uint32_t *>(
+ input + (y * inputRowPitch) + (z * inputDepthPitch));
+ uint8_t *destStencil =
+ reinterpret_cast<uint8_t *>(output + (y * outputRowPitch) + (z * outputDepthPitch));
+ for (size_t x = 0; x < width; x++)
+ {
+ destStencil[x] = (source[(x * 2) + 1] & 0xFF);
+ }
+ }
+ }
+}
+
+void LoadD32FS8X24ToD32F(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ for (size_t z = 0; z < depth; z++)
+ {
+ for (size_t y = 0; y < height; y++)
+ {
+ const float *sourceDepth =
+ priv::OffsetDataPointer<float>(input, y, z, inputRowPitch, inputDepthPitch);
+ float *destDepth =
+ priv::OffsetDataPointer<float>(output, y, z, outputRowPitch, outputDepthPitch);
+ for (size_t x = 0; x < width; x++)
+ {
+ destDepth[x] = gl::clamp01(sourceDepth[x * 2]);
+ }
+ }
+ }
+}
+
+void LoadD32FS8X24ToD32FS8X24(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ for (size_t z = 0; z < depth; z++)
+ {
+ for (size_t y = 0; y < height; y++)
+ {
+ const float *sourceDepth =
+ priv::OffsetDataPointer<float>(input, y, z, inputRowPitch, inputDepthPitch);
+ const uint32_t *sourceStencil =
+ priv::OffsetDataPointer<uint32_t>(input, y, z, inputRowPitch, inputDepthPitch) + 1;
+ float *destDepth =
+ priv::OffsetDataPointer<float>(output, y, z, outputRowPitch, outputDepthPitch);
+ uint32_t *destStencil =
+ priv::OffsetDataPointer<uint32_t>(output, y, z, outputRowPitch, outputDepthPitch) +
+ 1;
+ for (size_t x = 0; x < width; x++)
+ {
+ destDepth[x * 2] = gl::clamp01(sourceDepth[x * 2]);
+ destStencil[x * 2] = sourceStencil[x * 2] & 0xFF000000;
+ }
+ }
+ }
+}
+
+void LoadRGB32FToRGBA16F(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ for (size_t z = 0; z < depth; z++)
+ {
+ for (size_t y = 0; y < height; y++)
+ {
+ const float *source =
+ priv::OffsetDataPointer<float>(input, y, z, inputRowPitch, inputDepthPitch);
+ uint16_t *dest =
+ priv::OffsetDataPointer<uint16_t>(output, y, z, outputRowPitch, outputDepthPitch);
+ for (size_t x = 0; x < width; x++)
+ {
+ dest[x * 4 + 0] = gl::float32ToFloat16(source[x * 3 + 0]);
+ dest[x * 4 + 1] = gl::float32ToFloat16(source[x * 3 + 1]);
+ dest[x * 4 + 2] = gl::float32ToFloat16(source[x * 3 + 2]);
+ dest[x * 4 + 3] = gl::Float16One;
+ }
+ }
+ }
+}
+
+void LoadRGB32FToRGB16F(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ for (size_t z = 0; z < depth; z++)
+ {
+ for (size_t y = 0; y < height; y++)
+ {
+ const float *source =
+ priv::OffsetDataPointer<float>(input, y, z, inputRowPitch, inputDepthPitch);
+ uint16_t *dest =
+ priv::OffsetDataPointer<uint16_t>(output, y, z, outputRowPitch, outputDepthPitch);
+ for (size_t x = 0; x < width; x++)
+ {
+ dest[x * 3 + 0] = gl::float32ToFloat16(source[x * 3 + 0]);
+ dest[x * 3 + 1] = gl::float32ToFloat16(source[x * 3 + 1]);
+ dest[x * 3 + 2] = gl::float32ToFloat16(source[x * 3 + 2]);
+ }
+ }
+ }
+}
+
+void LoadR32ToR16(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ for (size_t z = 0; z < depth; z++)
+ {
+ for (size_t y = 0; y < height; y++)
+ {
+ const uint32_t *source =
+ priv::OffsetDataPointer<uint32_t>(input, y, z, inputRowPitch, inputDepthPitch);
+ uint16_t *dest =
+ priv::OffsetDataPointer<uint16_t>(output, y, z, outputRowPitch, outputDepthPitch);
+ for (size_t x = 0; x < width; x++)
+ {
+ dest[x] = source[x] >> 16;
+ }
+ }
+ }
+}
+
+void LoadR32ToR24G8(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ for (size_t z = 0; z < depth; z++)
+ {
+ for (size_t y = 0; y < height; y++)
+ {
+ const uint32_t *source =
+ priv::OffsetDataPointer<uint32_t>(input, y, z, inputRowPitch, inputDepthPitch);
+ uint32_t *dest =
+ priv::OffsetDataPointer<uint32_t>(output, y, z, outputRowPitch, outputDepthPitch);
+
+ for (size_t x = 0; x < width; x++)
+ {
+ dest[x] = source[x] >> 8;
+ }
+ }
+ }
+}
+
+// This conversion was added to support using a 32F depth buffer
+// as emulation for 16unorm depth buffer in Metal.
+// See angleproject:6597
+void LoadUNorm16To32F(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ for (size_t z = 0; z < depth; z++)
+ {
+ for (size_t y = 0; y < height; y++)
+ {
+ const uint16_t *source =
+ priv::OffsetDataPointer<uint16_t>(input, y, z, inputRowPitch, inputDepthPitch);
+ float *dest =
+ priv::OffsetDataPointer<float>(output, y, z, outputRowPitch, outputDepthPitch);
+ for (size_t x = 0; x < width; x++)
+ {
+ dest[x] = static_cast<float>(source[x]) / 0xFFFF;
+ }
+ }
+ }
+}
+
+// This conversion was added to support using a 32F depth buffer
+// as emulation for 16unorm depth buffer in Metal. In OpenGL ES 3.0
+// you're allowed to pass UNSIGNED_INT as input to texImage2D and
+// so this conversion is neccasary.
+//
+// See angleproject:6597
+void LoadUNorm32To32F(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ for (size_t z = 0; z < depth; z++)
+ {
+ for (size_t y = 0; y < height; y++)
+ {
+ const uint16_t *source =
+ priv::OffsetDataPointer<uint16_t>(input, y, z, inputRowPitch, inputDepthPitch);
+ float *dest =
+ priv::OffsetDataPointer<float>(output, y, z, outputRowPitch, outputDepthPitch);
+ for (size_t x = 0; x < width; x++)
+ {
+ dest[x] = static_cast<float>(source[x]) / static_cast<float>(0xFFFFFFFFU);
+ }
+ }
+ }
+}
+
+void LoadYuvToNative(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ // For YUV formats it is assumed that source has tightly packed data.
+ memcpy(output, input, inputDepthPitch);
+}
+
+} // namespace angle
diff --git a/gfx/angle/checkout/src/image_util/loadimage.h b/gfx/angle/checkout/src/image_util/loadimage.h
new file mode 100644
index 0000000000..5ae4d47938
--- /dev/null
+++ b/gfx/angle/checkout/src/image_util/loadimage.h
@@ -0,0 +1,976 @@
+//
+// Copyright 2013 The ANGLE Project Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+//
+
+// loadimage.h: Defines image loading functions
+
+#ifndef IMAGEUTIL_LOADIMAGE_H_
+#define IMAGEUTIL_LOADIMAGE_H_
+
+#include <stddef.h>
+#include <stdint.h>
+
+namespace angle
+{
+
+void LoadA8ToRGBA8(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadA8ToBGRA8(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadA32FToRGBA32F(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadA16FToRGBA16F(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadL8ToRGBA8(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadL8ToBGRA8(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadL32FToRGBA32F(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadL16FToRGBA16F(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadLA8ToRGBA8(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadLA8ToBGRA8(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadLA32FToRGBA32F(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadLA16FToRGBA16F(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadRGB8ToBGR565(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadRGB565ToBGR565(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadRGB8ToBGRX8(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadRG8ToBGRX8(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadR8ToBGRX8(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadR5G6B5ToBGRA8(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadR5G6B5ToRGBA8(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadRGBA8ToBGRA8(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadRGBA8ToBGRA4(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadRGBA8ToRGBA4(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadRGBA4ToARGB4(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadRGBA4ToRGBA4(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadRGBA4ToBGRA8(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadRGBA4ToRGBA8(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadBGRA4ToBGRA8(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadRGBA8ToBGR5A1(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadRGBA8ToRGB5A1(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadRGB10A2ToBGR5A1(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadRGB10A2ToRGB5A1(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadRGB5A1ToRGB5A1(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadRGB5A1ToBGR5A1(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadRGB5A1ToA1RGB5(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadRGB5A1ToBGRA8(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadRGB5A1ToRGBA8(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadBGR5A1ToBGRA8(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadRGB10A2ToRGBA8(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadRGB10A2ToRGB10X2(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadRGB16FToRGB9E5(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadRGB32FToRGB9E5(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadRGB16FToRG11B10F(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadRGB32FToRG11B10F(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadG8R24ToR24G8(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadD24S8ToD32FS8X24(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadD24S8ToD32F(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadD32ToD32FX32(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadD32ToD32F(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadD32FToD32F(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadD32FS8X24ToD24S8(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadX24S8ToS8(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadX32S8ToS8(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadD32FS8X24ToD32F(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadD32FS8X24ToD32FS8X24(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+template <typename type, size_t componentCount>
+inline void LoadToNative(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+template <typename type, uint32_t fourthComponentBits>
+inline void LoadToNative3To4(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+template <size_t componentCount>
+inline void Load32FTo16F(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadUNorm16To32F(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadUNorm32To32F(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadRGB32FToRGBA16F(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadRGB32FToRGB16F(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+template <size_t blockWidth, size_t blockHeight, size_t blockDepth, size_t blockSize>
+inline void LoadCompressedToNative(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadR32ToR16(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+template <typename type,
+ uint32_t firstBits,
+ uint32_t secondBits,
+ uint32_t thirdBits,
+ uint32_t fourthBits>
+inline void Initialize4ComponentData(size_t width,
+ size_t height,
+ size_t depth,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadR32ToR24G8(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadETC1RGB8ToRGBA8(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadASTCToRGBA8Inner(size_t width,
+ size_t height,
+ size_t depth,
+ uint32_t blockWidth,
+ uint32_t blockHeight,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+template <size_t blockWidth, size_t blockHeight>
+inline void LoadASTCToRGBA8(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadETC1RGB8ToBC1(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadEACR11ToR8(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadEACR11SToR8(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadEACRG11ToRG8(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadEACRG11SToRG8(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadEACR11ToR16(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadEACR11SToR16(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadEACRG11ToRG16(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadEACRG11SToRG16(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadEACR11ToR16F(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadEACR11SToR16F(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadEACRG11ToRG16F(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadEACRG11SToRG16F(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadETC2RGB8ToRGBA8(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadETC2RGB8ToBC1(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadETC2SRGB8ToRGBA8(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadETC2SRGB8ToBC1(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadETC2RGB8A1ToRGBA8(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadETC2RGB8A1ToBC1(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadETC2SRGB8A1ToRGBA8(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadETC2SRGB8A1ToBC1(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadETC2RGBA8ToRGBA8(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadETC2SRGBA8ToSRGBA8(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadYuvToNative(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+void LoadPalettedToRGBA8Impl(size_t width,
+ size_t height,
+ size_t depth,
+ uint32_t indexBits,
+ uint32_t redBlueBits,
+ uint32_t greenBits,
+ uint32_t alphaBits,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+template <uint32_t indexBits, uint32_t redBlueBits, uint32_t greenBits, uint32_t alphaBits>
+inline void LoadPalettedToRGBA8(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch);
+
+} // namespace angle
+
+#include "loadimage.inc"
+
+#endif // IMAGEUTIL_LOADIMAGE_H_
diff --git a/gfx/angle/checkout/src/image_util/loadimage.inc b/gfx/angle/checkout/src/image_util/loadimage.inc
new file mode 100644
index 0000000000..58c0b9faf5
--- /dev/null
+++ b/gfx/angle/checkout/src/image_util/loadimage.inc
@@ -0,0 +1,201 @@
+//
+// Copyright 2014 The ANGLE Project Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+//
+
+#include "common/mathutil.h"
+
+#include <string.h>
+
+namespace angle
+{
+
+namespace priv
+{
+
+template <typename T>
+inline T *OffsetDataPointer(uint8_t *data, size_t y, size_t z, size_t rowPitch, size_t depthPitch)
+{
+ return reinterpret_cast<T*>(data + (y * rowPitch) + (z * depthPitch));
+}
+
+template <typename T>
+inline const T *OffsetDataPointer(const uint8_t *data, size_t y, size_t z, size_t rowPitch, size_t depthPitch)
+{
+ return reinterpret_cast<const T*>(data + (y * rowPitch) + (z * depthPitch));
+}
+
+} // namespace priv
+
+template <typename type, size_t componentCount>
+inline void LoadToNative(size_t width, size_t height, size_t depth,
+ const uint8_t *input, size_t inputRowPitch, size_t inputDepthPitch,
+ uint8_t *output, size_t outputRowPitch, size_t outputDepthPitch)
+{
+ const size_t rowSize = width * sizeof(type) * componentCount;
+ const size_t layerSize = rowSize * height;
+ const size_t imageSize = layerSize * depth;
+
+ if (layerSize == inputDepthPitch && layerSize == outputDepthPitch)
+ {
+ ASSERT(rowSize == inputRowPitch && rowSize == outputRowPitch);
+ memcpy(output, input, imageSize);
+ }
+ else if (rowSize == inputRowPitch && rowSize == outputRowPitch)
+ {
+ for (size_t z = 0; z < depth; z++)
+ {
+ const type *source = priv::OffsetDataPointer<type>(input, 0, z, inputRowPitch, inputDepthPitch);
+ type *dest = priv::OffsetDataPointer<type>(output, 0, z, outputRowPitch, outputDepthPitch);
+
+ memcpy(dest, source, layerSize);
+ }
+ }
+ else
+ {
+ for (size_t z = 0; z < depth; z++)
+ {
+ for (size_t y = 0; y < height; y++)
+ {
+ const type *source = priv::OffsetDataPointer<type>(input, y, z, inputRowPitch, inputDepthPitch);
+ type *dest = priv::OffsetDataPointer<type>(output, y, z, outputRowPitch, outputDepthPitch);
+ memcpy(dest, source, width * sizeof(type) * componentCount);
+ }
+ }
+ }
+}
+
+template <typename type, uint32_t fourthComponentBits>
+inline void LoadToNative3To4(size_t width, size_t height, size_t depth,
+ const uint8_t *input, size_t inputRowPitch, size_t inputDepthPitch,
+ uint8_t *output, size_t outputRowPitch, size_t outputDepthPitch)
+{
+ const type fourthValue = gl::bitCast<type>(fourthComponentBits);
+
+ for (size_t z = 0; z < depth; z++)
+ {
+ for (size_t y = 0; y < height; y++)
+ {
+ const type *source = priv::OffsetDataPointer<type>(input, y, z, inputRowPitch, inputDepthPitch);
+ type *dest = priv::OffsetDataPointer<type>(output, y, z, outputRowPitch, outputDepthPitch);
+ for (size_t x = 0; x < width; x++)
+ {
+ memcpy(&dest[x * 4], &source[x * 3], sizeof(type) * 3);
+ dest[x * 4 + 3] = fourthValue;
+ }
+ }
+ }
+}
+
+template <size_t componentCount>
+inline void Load32FTo16F(size_t width, size_t height, size_t depth,
+ const uint8_t *input, size_t inputRowPitch, size_t inputDepthPitch,
+ uint8_t *output, size_t outputRowPitch, size_t outputDepthPitch)
+{
+ const size_t elementWidth = componentCount * width;
+
+ for (size_t z = 0; z < depth; z++)
+ {
+ for (size_t y = 0; y < height; y++)
+ {
+ const float *source = priv::OffsetDataPointer<float>(input, y, z, inputRowPitch, inputDepthPitch);
+ uint16_t *dest = priv::OffsetDataPointer<uint16_t>(output, y, z, outputRowPitch, outputDepthPitch);
+
+ for (size_t x = 0; x < elementWidth; x++)
+ {
+ dest[x] = gl::float32ToFloat16(source[x]);
+ }
+ }
+ }
+}
+
+template <size_t blockWidth, size_t blockHeight, size_t blockDepth, size_t blockSize>
+inline void LoadCompressedToNative(size_t width, size_t height, size_t depth,
+ const uint8_t *input, size_t inputRowPitch, size_t inputDepthPitch,
+ uint8_t *output, size_t outputRowPitch, size_t outputDepthPitch)
+{
+ const size_t columns = (width + (blockWidth - 1)) / blockWidth;
+ const size_t rows = (height + (blockHeight - 1)) / blockHeight;
+ const size_t layers = (depth + (blockDepth - 1)) / blockDepth;
+
+ for (size_t z = 0; z < layers; ++z)
+ {
+ for (size_t y = 0; y < rows; ++y)
+ {
+ const uint8_t *source = priv::OffsetDataPointer<uint8_t>(input, y, z, inputRowPitch, inputDepthPitch);
+ uint8_t *dest = priv::OffsetDataPointer<uint8_t>(output, y, z, outputRowPitch, outputDepthPitch);
+ memcpy(dest, source, columns * blockSize);
+ }
+ }
+}
+
+template <typename type, uint32_t firstBits, uint32_t secondBits, uint32_t thirdBits, uint32_t fourthBits>
+inline void Initialize4ComponentData(size_t width, size_t height, size_t depth,
+ uint8_t *output, size_t outputRowPitch, size_t outputDepthPitch)
+{
+ type writeValues[4] =
+ {
+ gl::bitCast<type>(firstBits),
+ gl::bitCast<type>(secondBits),
+ gl::bitCast<type>(thirdBits),
+ gl::bitCast<type>(fourthBits),
+ };
+
+ for (size_t z = 0; z < depth; z++)
+ {
+ for (size_t y = 0; y < height; y++)
+ {
+ type *destRow = priv::OffsetDataPointer<type>(output, y, z, outputRowPitch, outputDepthPitch);
+ for (size_t x = 0; x < width; x++)
+ {
+ type* destPixel = destRow + x * 4;
+
+ // This could potentially be optimized by generating an entire row of initialization
+ // data and copying row by row instead of pixel by pixel.
+ memcpy(destPixel, writeValues, sizeof(type) * 4);
+ }
+ }
+ }
+}
+
+template <size_t blockWidth, size_t blockHeight>
+inline void LoadASTCToRGBA8(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ LoadASTCToRGBA8Inner(width, height, depth, blockWidth, blockHeight, input, inputRowPitch,
+ inputDepthPitch, output, outputRowPitch, outputDepthPitch);
+}
+
+template <uint32_t indexBits, uint32_t redBlueBits, uint32_t greenBits, uint32_t alphaBits>
+inline void LoadPalettedToRGBA8(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ static_assert(indexBits == 4 || indexBits == 8);
+ static_assert(redBlueBits == 4 || redBlueBits == 5 || redBlueBits == 8);
+ static_assert(greenBits == 4 || greenBits == 5 || greenBits == 6 || greenBits == 8);
+ static_assert(alphaBits == 0 || alphaBits == 1 || alphaBits == 4 || alphaBits == 8);
+ constexpr uint32_t colorBits = 2 * redBlueBits + greenBits + alphaBits;
+ static_assert(colorBits == 16 || colorBits == 24 || colorBits == 32);
+
+ LoadPalettedToRGBA8Impl(width, height, depth,
+ indexBits, redBlueBits, greenBits, alphaBits,
+ input, inputRowPitch, inputDepthPitch,
+ output, outputRowPitch, outputDepthPitch);
+}
+
+} // namespace angle
diff --git a/gfx/angle/checkout/src/image_util/loadimage_astc.cpp b/gfx/angle/checkout/src/image_util/loadimage_astc.cpp
new file mode 100644
index 0000000000..34fd164322
--- /dev/null
+++ b/gfx/angle/checkout/src/image_util/loadimage_astc.cpp
@@ -0,0 +1,84 @@
+//
+// Copyright 2022 The ANGLE Project Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+//
+
+// loadimage_astc.cpp: Decodes ASTC encoded textures.
+
+#ifdef ANGLE_HAS_ASTCENC
+# include <astcenc.h>
+#endif
+
+#include "image_util/loadimage.h"
+
+namespace angle
+{
+
+void LoadASTCToRGBA8Inner(size_t width,
+ size_t height,
+ size_t depth,
+ uint32_t blockWidth,
+ uint32_t blockHeight,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+#ifdef ANGLE_HAS_ASTCENC
+ astcenc_config config;
+
+ constexpr unsigned int kBlockZ = 1;
+
+ const float kQuality = ASTCENC_PRE_MEDIUM;
+ constexpr astcenc_profile kProfile = ASTCENC_PRF_LDR;
+
+ astcenc_error status;
+ status = astcenc_config_init(kProfile, blockWidth, blockHeight, kBlockZ, kQuality,
+ ASTCENC_FLG_DECOMPRESS_ONLY, &config);
+ if (status != ASTCENC_SUCCESS)
+ {
+ WARN() << "astcenc config init failed: " << astcenc_get_error_string(status);
+ return;
+ }
+
+ constexpr unsigned int kThreadCount = 1;
+
+ astcenc_context *context;
+ status = astcenc_context_alloc(&config, kThreadCount, &context);
+ if (status != ASTCENC_SUCCESS)
+ {
+ WARN() << "Could not allocate astcenc context: " << astcenc_get_error_string(status);
+ return;
+ }
+
+ // Compute the number of ASTC blocks in each dimension
+ uint32_t blockCountX = (static_cast<uint32_t>(width) + config.block_x - 1) / config.block_x;
+ uint32_t blockCountY = (static_cast<uint32_t>(height) + config.block_y - 1) / config.block_y;
+
+ // Space needed for 16 bytes of output per compressed block
+ size_t blockSize = blockCountX * blockCountY * 16;
+
+ astcenc_image image;
+ image.dim_x = static_cast<uint32_t>(width);
+ image.dim_y = static_cast<uint32_t>(height);
+ image.dim_z = 1;
+ image.data_type = ASTCENC_TYPE_U8;
+ image.data = reinterpret_cast<void **>(&output);
+
+ constexpr astcenc_swizzle swizzle{ASTCENC_SWZ_R, ASTCENC_SWZ_G, ASTCENC_SWZ_B, ASTCENC_SWZ_A};
+
+ status = astcenc_decompress_image(context, input, blockSize, &image, &swizzle, 0);
+ if (status != ASTCENC_SUCCESS)
+ {
+ WARN() << "astcenc decompress failed: " << astcenc_get_error_string(status);
+ }
+
+ astcenc_context_free(context);
+#else
+ ERR() << "Trying to decode ASTC without having ASTC support built.";
+#endif
+}
+} // namespace angle
diff --git a/gfx/angle/checkout/src/image_util/loadimage_etc.cpp b/gfx/angle/checkout/src/image_util/loadimage_etc.cpp
new file mode 100644
index 0000000000..5eca88ef04
--- /dev/null
+++ b/gfx/angle/checkout/src/image_util/loadimage_etc.cpp
@@ -0,0 +1,1994 @@
+//
+// Copyright 2013 The ANGLE Project Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+//
+
+// loadimage_etc.cpp: Decodes ETC and EAC encoded textures.
+
+#include "image_util/loadimage.h"
+
+#include <type_traits>
+#include "common/mathutil.h"
+
+#include "image_util/imageformats.h"
+
+namespace angle
+{
+namespace
+{
+
+using IntensityModifier = const int[4];
+
+// Table 3.17.2 sorted according to table 3.17.3
+// clang-format off
+static IntensityModifier intensityModifierDefault[] =
+{
+ { 2, 8, -2, -8 },
+ { 5, 17, -5, -17 },
+ { 9, 29, -9, -29 },
+ { 13, 42, -13, -42 },
+ { 18, 60, -18, -60 },
+ { 24, 80, -24, -80 },
+ { 33, 106, -33, -106 },
+ { 47, 183, -47, -183 },
+};
+// clang-format on
+
+// Table C.12, intensity modifier for non opaque punchthrough alpha
+// clang-format off
+static IntensityModifier intensityModifierNonOpaque[] =
+{
+ { 0, 8, 0, -8 },
+ { 0, 17, 0, -17 },
+ { 0, 29, 0, -29 },
+ { 0, 42, 0, -42 },
+ { 0, 60, 0, -60 },
+ { 0, 80, 0, -80 },
+ { 0, 106, 0, -106 },
+ { 0, 183, 0, -183 },
+};
+// clang-format on
+
+static const int kNumPixelsInBlock = 16;
+
+struct ETC2Block
+{
+ // Decodes unsigned single or dual channel ETC2 block to 8-bit color
+ void decodeAsSingleETC2Channel(uint8_t *dest,
+ size_t x,
+ size_t y,
+ size_t w,
+ size_t h,
+ size_t destPixelStride,
+ size_t destRowPitch,
+ bool isSigned) const
+ {
+ for (size_t j = 0; j < 4 && (y + j) < h; j++)
+ {
+ uint8_t *row = dest + (j * destRowPitch);
+ for (size_t i = 0; i < 4 && (x + i) < w; i++)
+ {
+ uint8_t *pixel = row + (i * destPixelStride);
+ if (isSigned)
+ {
+ *pixel = clampSByte(getSingleETC2Channel(i, j, isSigned));
+ }
+ else
+ {
+ *pixel = clampByte(getSingleETC2Channel(i, j, isSigned));
+ }
+ }
+ }
+ }
+
+ // Decodes unsigned single or dual channel EAC block to 16-bit color
+ void decodeAsSingleEACChannel(uint16_t *dest,
+ size_t x,
+ size_t y,
+ size_t w,
+ size_t h,
+ size_t destPixelStride,
+ size_t destRowPitch,
+ bool isSigned,
+ bool isFloat) const
+ {
+ for (size_t j = 0; j < 4 && (y + j) < h; j++)
+ {
+ uint16_t *row = reinterpret_cast<uint16_t *>(reinterpret_cast<uint8_t *>(dest) +
+ (j * destRowPitch));
+ for (size_t i = 0; i < 4 && (x + i) < w; i++)
+ {
+ uint16_t *pixel = row + (i * destPixelStride);
+ if (isSigned)
+ {
+ int16_t tempPixel =
+ renormalizeEAC<int16_t>(getSingleEACChannel(i, j, isSigned));
+ *pixel =
+ isFloat ? gl::float32ToFloat16(float(gl::normalize(tempPixel))) : tempPixel;
+ }
+ else
+ {
+ uint16_t tempPixel =
+ renormalizeEAC<uint16_t>(getSingleEACChannel(i, j, isSigned));
+ *pixel =
+ isFloat ? gl::float32ToFloat16(float(gl::normalize(tempPixel))) : tempPixel;
+ }
+ }
+ }
+ }
+
+ // Decodes RGB block to rgba8
+ void decodeAsRGB(uint8_t *dest,
+ size_t x,
+ size_t y,
+ size_t w,
+ size_t h,
+ size_t destRowPitch,
+ const uint8_t alphaValues[4][4],
+ bool punchThroughAlpha) const
+ {
+ bool opaqueBit = u.idht.mode.idm.diffbit;
+ bool nonOpaquePunchThroughAlpha = punchThroughAlpha && !opaqueBit;
+ // Select mode
+ if (u.idht.mode.idm.diffbit || punchThroughAlpha)
+ {
+ const auto &block = u.idht.mode.idm.colors.diff;
+ int r = (block.R + block.dR);
+ int g = (block.G + block.dG);
+ int b = (block.B + block.dB);
+ if (r < 0 || r > 31)
+ {
+ decodeTBlock(dest, x, y, w, h, destRowPitch, alphaValues,
+ nonOpaquePunchThroughAlpha);
+ }
+ else if (g < 0 || g > 31)
+ {
+ decodeHBlock(dest, x, y, w, h, destRowPitch, alphaValues,
+ nonOpaquePunchThroughAlpha);
+ }
+ else if (b < 0 || b > 31)
+ {
+ decodePlanarBlock(dest, x, y, w, h, destRowPitch, alphaValues);
+ }
+ else
+ {
+ decodeDifferentialBlock(dest, x, y, w, h, destRowPitch, alphaValues,
+ nonOpaquePunchThroughAlpha);
+ }
+ }
+ else
+ {
+ decodeIndividualBlock(dest, x, y, w, h, destRowPitch, alphaValues,
+ nonOpaquePunchThroughAlpha);
+ }
+ }
+
+ // Transcodes RGB block to BC1
+ void transcodeAsBC1(uint8_t *dest,
+ size_t x,
+ size_t y,
+ size_t w,
+ size_t h,
+ const uint8_t alphaValues[4][4],
+ bool punchThroughAlpha) const
+ {
+ bool opaqueBit = u.idht.mode.idm.diffbit;
+ bool nonOpaquePunchThroughAlpha = punchThroughAlpha && !opaqueBit;
+ // Select mode
+ if (u.idht.mode.idm.diffbit || punchThroughAlpha)
+ {
+ const auto &block = u.idht.mode.idm.colors.diff;
+ int r = (block.R + block.dR);
+ int g = (block.G + block.dG);
+ int b = (block.B + block.dB);
+ if (r < 0 || r > 31)
+ {
+ transcodeTBlockToBC1(dest, x, y, w, h, alphaValues, nonOpaquePunchThroughAlpha);
+ }
+ else if (g < 0 || g > 31)
+ {
+ transcodeHBlockToBC1(dest, x, y, w, h, alphaValues, nonOpaquePunchThroughAlpha);
+ }
+ else if (b < 0 || b > 31)
+ {
+ transcodePlanarBlockToBC1(dest, x, y, w, h, alphaValues);
+ }
+ else
+ {
+ transcodeDifferentialBlockToBC1(dest, x, y, w, h, alphaValues,
+ nonOpaquePunchThroughAlpha);
+ }
+ }
+ else
+ {
+ transcodeIndividualBlockToBC1(dest, x, y, w, h, alphaValues,
+ nonOpaquePunchThroughAlpha);
+ }
+ }
+
+ private:
+ union
+ {
+ // Individual, differential, H and T modes
+ struct
+ {
+ union
+ {
+ // Individual and differential modes
+ struct
+ {
+ union
+ {
+ struct // Individual colors
+ {
+ unsigned char R2 : 4;
+ unsigned char R1 : 4;
+ unsigned char G2 : 4;
+ unsigned char G1 : 4;
+ unsigned char B2 : 4;
+ unsigned char B1 : 4;
+ } indiv;
+ struct // Differential colors
+ {
+ signed char dR : 3;
+ unsigned char R : 5;
+ signed char dG : 3;
+ unsigned char G : 5;
+ signed char dB : 3;
+ unsigned char B : 5;
+ } diff;
+ } colors;
+ bool flipbit : 1;
+ bool diffbit : 1;
+ unsigned char cw2 : 3;
+ unsigned char cw1 : 3;
+ } idm;
+ // T mode
+ struct
+ {
+ // Byte 1
+ unsigned char TR1b : 2;
+ unsigned char TunusedB : 1;
+ unsigned char TR1a : 2;
+ unsigned char TunusedA : 3;
+ // Byte 2
+ unsigned char TB1 : 4;
+ unsigned char TG1 : 4;
+ // Byte 3
+ unsigned char TG2 : 4;
+ unsigned char TR2 : 4;
+ // Byte 4
+ unsigned char Tdb : 1;
+ bool Tflipbit : 1;
+ unsigned char Tda : 2;
+ unsigned char TB2 : 4;
+ } tm;
+ // H mode
+ struct
+ {
+ // Byte 1
+ unsigned char HG1a : 3;
+ unsigned char HR1 : 4;
+ unsigned char HunusedA : 1;
+ // Byte 2
+ unsigned char HB1b : 2;
+ unsigned char HunusedC : 1;
+ unsigned char HB1a : 1;
+ unsigned char HG1b : 1;
+ unsigned char HunusedB : 3;
+ // Byte 3
+ unsigned char HG2a : 3;
+ unsigned char HR2 : 4;
+ unsigned char HB1c : 1;
+ // Byte 4
+ unsigned char Hdb : 1;
+ bool Hflipbit : 1;
+ unsigned char Hda : 1;
+ unsigned char HB2 : 4;
+ unsigned char HG2b : 1;
+ } hm;
+ } mode;
+ unsigned char pixelIndexMSB[2];
+ unsigned char pixelIndexLSB[2];
+ } idht;
+ // planar mode
+ struct
+ {
+ // Byte 1
+ unsigned char GO1 : 1;
+ unsigned char RO : 6;
+ unsigned char PunusedA : 1;
+ // Byte 2
+ unsigned char BO1 : 1;
+ unsigned char GO2 : 6;
+ unsigned char PunusedB : 1;
+ // Byte 3
+ unsigned char BO3a : 2;
+ unsigned char PunusedD : 1;
+ unsigned char BO2 : 2;
+ unsigned char PunusedC : 3;
+ // Byte 4
+ unsigned char RH2 : 1;
+ bool Pflipbit : 1;
+ unsigned char RH1 : 5;
+ unsigned char BO3b : 1;
+ // Byte 5
+ unsigned char BHa : 1;
+ unsigned char GH : 7;
+ // Byte 6
+ unsigned char RVa : 3;
+ unsigned char BHb : 5;
+ // Byte 7
+ unsigned char GVa : 5;
+ unsigned char RVb : 3;
+ // Byte 8
+ unsigned char BV : 6;
+ unsigned char GVb : 2;
+ } pblk;
+ // Single channel block
+ struct
+ {
+ union
+ {
+ unsigned char us;
+ signed char s;
+ } base_codeword;
+ unsigned char table_index : 4;
+ unsigned char multiplier : 4;
+ unsigned char mc1 : 2;
+ unsigned char mb : 3;
+ unsigned char ma : 3;
+ unsigned char mf1 : 1;
+ unsigned char me : 3;
+ unsigned char md : 3;
+ unsigned char mc2 : 1;
+ unsigned char mh : 3;
+ unsigned char mg : 3;
+ unsigned char mf2 : 2;
+ unsigned char mk1 : 2;
+ unsigned char mj : 3;
+ unsigned char mi : 3;
+ unsigned char mn1 : 1;
+ unsigned char mm : 3;
+ unsigned char ml : 3;
+ unsigned char mk2 : 1;
+ unsigned char mp : 3;
+ unsigned char mo : 3;
+ unsigned char mn2 : 2;
+ } scblk;
+ } u;
+
+ static unsigned char clampByte(int value)
+ {
+ return static_cast<unsigned char>(gl::clamp(value, 0, 255));
+ }
+
+ static signed char clampSByte(int value)
+ {
+ return static_cast<signed char>(gl::clamp(value, -128, 127));
+ }
+
+ template <typename T>
+ static T renormalizeEAC(int value)
+ {
+ int upper = 0;
+ int lower = 0;
+ int shift = 0;
+
+ if (std::is_same<T, int16_t>::value)
+ {
+ // The spec states that -1024 invalid and should be clamped to -1023
+ upper = 1023;
+ lower = -1023;
+ shift = 5;
+ }
+ else if (std::is_same<T, uint16_t>::value)
+ {
+ upper = 2047;
+ lower = 0;
+ shift = 5;
+ }
+ else
+ {
+ // We currently only support renormalizing int16_t or uint16_t
+ UNREACHABLE();
+ }
+
+ return static_cast<T>(gl::clamp(value, lower, upper)) << shift;
+ }
+
+ static R8G8B8A8 createRGBA(int red, int green, int blue, int alpha)
+ {
+ R8G8B8A8 rgba;
+ rgba.R = clampByte(red);
+ rgba.G = clampByte(green);
+ rgba.B = clampByte(blue);
+ rgba.A = clampByte(alpha);
+ return rgba;
+ }
+
+ static R8G8B8A8 createRGBA(int red, int green, int blue)
+ {
+ return createRGBA(red, green, blue, 255);
+ }
+
+ static int extend_4to8bits(int x) { return (x << 4) | x; }
+ static int extend_5to8bits(int x) { return (x << 3) | (x >> 2); }
+ static int extend_6to8bits(int x) { return (x << 2) | (x >> 4); }
+ static int extend_7to8bits(int x) { return (x << 1) | (x >> 6); }
+
+ void decodeIndividualBlock(uint8_t *dest,
+ size_t x,
+ size_t y,
+ size_t w,
+ size_t h,
+ size_t destRowPitch,
+ const uint8_t alphaValues[4][4],
+ bool nonOpaquePunchThroughAlpha) const
+ {
+ const auto &block = u.idht.mode.idm.colors.indiv;
+ int r1 = extend_4to8bits(block.R1);
+ int g1 = extend_4to8bits(block.G1);
+ int b1 = extend_4to8bits(block.B1);
+ int r2 = extend_4to8bits(block.R2);
+ int g2 = extend_4to8bits(block.G2);
+ int b2 = extend_4to8bits(block.B2);
+ decodeIndividualOrDifferentialBlock(dest, x, y, w, h, destRowPitch, r1, g1, b1, r2, g2, b2,
+ alphaValues, nonOpaquePunchThroughAlpha);
+ }
+
+ void decodeDifferentialBlock(uint8_t *dest,
+ size_t x,
+ size_t y,
+ size_t w,
+ size_t h,
+ size_t destRowPitch,
+ const uint8_t alphaValues[4][4],
+ bool nonOpaquePunchThroughAlpha) const
+ {
+ const auto &block = u.idht.mode.idm.colors.diff;
+ int b1 = extend_5to8bits(block.B);
+ int g1 = extend_5to8bits(block.G);
+ int r1 = extend_5to8bits(block.R);
+ int r2 = extend_5to8bits(block.R + block.dR);
+ int g2 = extend_5to8bits(block.G + block.dG);
+ int b2 = extend_5to8bits(block.B + block.dB);
+ decodeIndividualOrDifferentialBlock(dest, x, y, w, h, destRowPitch, r1, g1, b1, r2, g2, b2,
+ alphaValues, nonOpaquePunchThroughAlpha);
+ }
+
+ void decodeIndividualOrDifferentialBlock(uint8_t *dest,
+ size_t x,
+ size_t y,
+ size_t w,
+ size_t h,
+ size_t destRowPitch,
+ int r1,
+ int g1,
+ int b1,
+ int r2,
+ int g2,
+ int b2,
+ const uint8_t alphaValues[4][4],
+ bool nonOpaquePunchThroughAlpha) const
+ {
+ const IntensityModifier *intensityModifier =
+ nonOpaquePunchThroughAlpha ? intensityModifierNonOpaque : intensityModifierDefault;
+
+ R8G8B8A8 subblockColors0[4];
+ R8G8B8A8 subblockColors1[4];
+ for (size_t modifierIdx = 0; modifierIdx < 4; modifierIdx++)
+ {
+ const int i1 = intensityModifier[u.idht.mode.idm.cw1][modifierIdx];
+ subblockColors0[modifierIdx] = createRGBA(r1 + i1, g1 + i1, b1 + i1);
+
+ const int i2 = intensityModifier[u.idht.mode.idm.cw2][modifierIdx];
+ subblockColors1[modifierIdx] = createRGBA(r2 + i2, g2 + i2, b2 + i2);
+ }
+
+ if (u.idht.mode.idm.flipbit)
+ {
+ uint8_t *curPixel = dest;
+ for (size_t j = 0; j < 2 && (y + j) < h; j++)
+ {
+ R8G8B8A8 *row = reinterpret_cast<R8G8B8A8 *>(curPixel);
+ for (size_t i = 0; i < 4 && (x + i) < w; i++)
+ {
+ row[i] = subblockColors0[getIndex(i, j)];
+ row[i].A = alphaValues[j][i];
+ }
+ curPixel += destRowPitch;
+ }
+ for (size_t j = 2; j < 4 && (y + j) < h; j++)
+ {
+ R8G8B8A8 *row = reinterpret_cast<R8G8B8A8 *>(curPixel);
+ for (size_t i = 0; i < 4 && (x + i) < w; i++)
+ {
+ row[i] = subblockColors1[getIndex(i, j)];
+ row[i].A = alphaValues[j][i];
+ }
+ curPixel += destRowPitch;
+ }
+ }
+ else
+ {
+ uint8_t *curPixel = dest;
+ for (size_t j = 0; j < 4 && (y + j) < h; j++)
+ {
+ R8G8B8A8 *row = reinterpret_cast<R8G8B8A8 *>(curPixel);
+ for (size_t i = 0; i < 2 && (x + i) < w; i++)
+ {
+ row[i] = subblockColors0[getIndex(i, j)];
+ row[i].A = alphaValues[j][i];
+ }
+ for (size_t i = 2; i < 4 && (x + i) < w; i++)
+ {
+ row[i] = subblockColors1[getIndex(i, j)];
+ row[i].A = alphaValues[j][i];
+ }
+ curPixel += destRowPitch;
+ }
+ }
+ if (nonOpaquePunchThroughAlpha)
+ {
+ decodePunchThroughAlphaBlock(dest, x, y, w, h, destRowPitch);
+ }
+ }
+
+ void decodeTBlock(uint8_t *dest,
+ size_t x,
+ size_t y,
+ size_t w,
+ size_t h,
+ size_t destRowPitch,
+ const uint8_t alphaValues[4][4],
+ bool nonOpaquePunchThroughAlpha) const
+ {
+ // Table C.8, distance index for T and H modes
+ const auto &block = u.idht.mode.tm;
+
+ int r1 = extend_4to8bits(block.TR1a << 2 | block.TR1b);
+ int g1 = extend_4to8bits(block.TG1);
+ int b1 = extend_4to8bits(block.TB1);
+ int r2 = extend_4to8bits(block.TR2);
+ int g2 = extend_4to8bits(block.TG2);
+ int b2 = extend_4to8bits(block.TB2);
+
+ static int distance[8] = {3, 6, 11, 16, 23, 32, 41, 64};
+ const int d = distance[block.Tda << 1 | block.Tdb];
+
+ const R8G8B8A8 paintColors[4] = {
+ createRGBA(r1, g1, b1),
+ createRGBA(r2 + d, g2 + d, b2 + d),
+ createRGBA(r2, g2, b2),
+ createRGBA(r2 - d, g2 - d, b2 - d),
+ };
+
+ uint8_t *curPixel = dest;
+ for (size_t j = 0; j < 4 && (y + j) < h; j++)
+ {
+ R8G8B8A8 *row = reinterpret_cast<R8G8B8A8 *>(curPixel);
+ for (size_t i = 0; i < 4 && (x + i) < w; i++)
+ {
+ row[i] = paintColors[getIndex(i, j)];
+ row[i].A = alphaValues[j][i];
+ }
+ curPixel += destRowPitch;
+ }
+
+ if (nonOpaquePunchThroughAlpha)
+ {
+ decodePunchThroughAlphaBlock(dest, x, y, w, h, destRowPitch);
+ }
+ }
+
+ void decodeHBlock(uint8_t *dest,
+ size_t x,
+ size_t y,
+ size_t w,
+ size_t h,
+ size_t destRowPitch,
+ const uint8_t alphaValues[4][4],
+ bool nonOpaquePunchThroughAlpha) const
+ {
+ // Table C.8, distance index for T and H modes
+ const auto &block = u.idht.mode.hm;
+
+ int r1 = extend_4to8bits(block.HR1);
+ int g1 = extend_4to8bits(block.HG1a << 1 | block.HG1b);
+ int b1 = extend_4to8bits(block.HB1a << 3 | block.HB1b << 1 | block.HB1c);
+ int r2 = extend_4to8bits(block.HR2);
+ int g2 = extend_4to8bits(block.HG2a << 1 | block.HG2b);
+ int b2 = extend_4to8bits(block.HB2);
+
+ static const int distance[8] = {3, 6, 11, 16, 23, 32, 41, 64};
+ const int orderingTrickBit =
+ ((r1 << 16 | g1 << 8 | b1) >= (r2 << 16 | g2 << 8 | b2) ? 1 : 0);
+ const int d = distance[(block.Hda << 2) | (block.Hdb << 1) | orderingTrickBit];
+
+ const R8G8B8A8 paintColors[4] = {
+ createRGBA(r1 + d, g1 + d, b1 + d),
+ createRGBA(r1 - d, g1 - d, b1 - d),
+ createRGBA(r2 + d, g2 + d, b2 + d),
+ createRGBA(r2 - d, g2 - d, b2 - d),
+ };
+
+ uint8_t *curPixel = dest;
+ for (size_t j = 0; j < 4 && (y + j) < h; j++)
+ {
+ R8G8B8A8 *row = reinterpret_cast<R8G8B8A8 *>(curPixel);
+ for (size_t i = 0; i < 4 && (x + i) < w; i++)
+ {
+ row[i] = paintColors[getIndex(i, j)];
+ row[i].A = alphaValues[j][i];
+ }
+ curPixel += destRowPitch;
+ }
+
+ if (nonOpaquePunchThroughAlpha)
+ {
+ decodePunchThroughAlphaBlock(dest, x, y, w, h, destRowPitch);
+ }
+ }
+
+ void decodePlanarBlock(uint8_t *dest,
+ size_t x,
+ size_t y,
+ size_t w,
+ size_t h,
+ size_t pitch,
+ const uint8_t alphaValues[4][4]) const
+ {
+ int ro = extend_6to8bits(u.pblk.RO);
+ int go = extend_7to8bits(u.pblk.GO1 << 6 | u.pblk.GO2);
+ int bo =
+ extend_6to8bits(u.pblk.BO1 << 5 | u.pblk.BO2 << 3 | u.pblk.BO3a << 1 | u.pblk.BO3b);
+ int rh = extend_6to8bits(u.pblk.RH1 << 1 | u.pblk.RH2);
+ int gh = extend_7to8bits(u.pblk.GH);
+ int bh = extend_6to8bits(u.pblk.BHa << 5 | u.pblk.BHb);
+ int rv = extend_6to8bits(u.pblk.RVa << 3 | u.pblk.RVb);
+ int gv = extend_7to8bits(u.pblk.GVa << 2 | u.pblk.GVb);
+ int bv = extend_6to8bits(u.pblk.BV);
+
+ uint8_t *curPixel = dest;
+ for (size_t j = 0; j < 4 && (y + j) < h; j++)
+ {
+ R8G8B8A8 *row = reinterpret_cast<R8G8B8A8 *>(curPixel);
+
+ int ry = static_cast<int>(j) * (rv - ro) + 2;
+ int gy = static_cast<int>(j) * (gv - go) + 2;
+ int by = static_cast<int>(j) * (bv - bo) + 2;
+ for (size_t i = 0; i < 4 && (x + i) < w; i++)
+ {
+ row[i] = createRGBA(((static_cast<int>(i) * (rh - ro) + ry) >> 2) + ro,
+ ((static_cast<int>(i) * (gh - go) + gy) >> 2) + go,
+ ((static_cast<int>(i) * (bh - bo) + by) >> 2) + bo,
+ alphaValues[j][i]);
+ }
+ curPixel += pitch;
+ }
+ }
+
+ // Index for individual, differential, H and T modes
+ size_t getIndex(size_t x, size_t y) const
+ {
+ size_t bitIndex = x * 4 + y;
+ size_t bitOffset = bitIndex & 7;
+ size_t lsb = (u.idht.pixelIndexLSB[1 - (bitIndex >> 3)] >> bitOffset) & 1;
+ size_t msb = (u.idht.pixelIndexMSB[1 - (bitIndex >> 3)] >> bitOffset) & 1;
+ return (msb << 1) | lsb;
+ }
+
+ void decodePunchThroughAlphaBlock(uint8_t *dest,
+ size_t x,
+ size_t y,
+ size_t w,
+ size_t h,
+ size_t destRowPitch) const
+ {
+ uint8_t *curPixel = dest;
+ for (size_t j = 0; j < 4 && (y + j) < h; j++)
+ {
+ R8G8B8A8 *row = reinterpret_cast<R8G8B8A8 *>(curPixel);
+ for (size_t i = 0; i < 4 && (x + i) < w; i++)
+ {
+ if (getIndex(i, j) == 2) // msb == 1 && lsb == 0
+ {
+ row[i] = createRGBA(0, 0, 0, 0);
+ }
+ }
+ curPixel += destRowPitch;
+ }
+ }
+
+ uint16_t RGB8ToRGB565(const R8G8B8A8 &rgba) const
+ {
+ return (static_cast<uint16_t>(rgba.R >> 3) << 11) |
+ (static_cast<uint16_t>(rgba.G >> 2) << 5) |
+ (static_cast<uint16_t>(rgba.B >> 3) << 0);
+ }
+
+ uint32_t matchBC1Bits(const int *pixelIndices,
+ const int *pixelIndexCounts,
+ const R8G8B8A8 *subblockColors,
+ size_t numColors,
+ const R8G8B8A8 &minColor,
+ const R8G8B8A8 &maxColor,
+ bool nonOpaquePunchThroughAlpha) const
+ {
+ // Project each pixel on the (maxColor, minColor) line to decide which
+ // BC1 code to assign to it.
+
+ uint8_t decodedColors[2][3] = {{maxColor.R, maxColor.G, maxColor.B},
+ {minColor.R, minColor.G, minColor.B}};
+
+ int direction[3];
+ for (int ch = 0; ch < 3; ch++)
+ {
+ direction[ch] = decodedColors[0][ch] - decodedColors[1][ch];
+ }
+
+ int stops[2];
+ for (int i = 0; i < 2; i++)
+ {
+ stops[i] = decodedColors[i][0] * direction[0] + decodedColors[i][1] * direction[1] +
+ decodedColors[i][2] * direction[2];
+ }
+
+ ASSERT(numColors <= kNumPixelsInBlock);
+
+ int encodedColors[kNumPixelsInBlock];
+ if (nonOpaquePunchThroughAlpha)
+ {
+ for (size_t i = 0; i < numColors; i++)
+ {
+ const int count = pixelIndexCounts[i];
+ if (count > 0)
+ {
+ // In non-opaque mode, 3 is for tranparent pixels.
+
+ if (0 == subblockColors[i].A)
+ {
+ encodedColors[i] = 3;
+ }
+ else
+ {
+ const R8G8B8A8 &pixel = subblockColors[i];
+ const int dot = pixel.R * direction[0] + pixel.G * direction[1] +
+ pixel.B * direction[2];
+ const int factor = gl::clamp(
+ static_cast<int>(
+ (static_cast<float>(dot - stops[1]) / (stops[0] - stops[1])) * 2 +
+ 0.5f),
+ 0, 2);
+ switch (factor)
+ {
+ case 0:
+ encodedColors[i] = 0;
+ break;
+ case 1:
+ encodedColors[i] = 2;
+ break;
+ case 2:
+ default:
+ encodedColors[i] = 1;
+ break;
+ }
+ }
+ }
+ }
+ }
+ else
+ {
+ for (size_t i = 0; i < numColors; i++)
+ {
+ const int count = pixelIndexCounts[i];
+ if (count > 0)
+ {
+ // In opaque mode, the code is from 0 to 3.
+
+ const R8G8B8A8 &pixel = subblockColors[i];
+ const int dot =
+ pixel.R * direction[0] + pixel.G * direction[1] + pixel.B * direction[2];
+ const int factor = gl::clamp(
+ static_cast<int>(
+ (static_cast<float>(dot - stops[1]) / (stops[0] - stops[1])) * 3 +
+ 0.5f),
+ 0, 3);
+ switch (factor)
+ {
+ case 0:
+ encodedColors[i] = 1;
+ break;
+ case 1:
+ encodedColors[i] = 3;
+ break;
+ case 2:
+ encodedColors[i] = 2;
+ break;
+ case 3:
+ default:
+ encodedColors[i] = 0;
+ break;
+ }
+ }
+ }
+ }
+
+ uint32_t bits = 0;
+ for (int i = kNumPixelsInBlock - 1; i >= 0; i--)
+ {
+ bits <<= 2;
+ bits |= encodedColors[pixelIndices[i]];
+ }
+
+ return bits;
+ }
+
+ void packBC1(void *bc1,
+ const int *pixelIndices,
+ const int *pixelIndexCounts,
+ const R8G8B8A8 *subblockColors,
+ size_t numColors,
+ int minColorIndex,
+ int maxColorIndex,
+ bool nonOpaquePunchThroughAlpha) const
+ {
+ const R8G8B8A8 &minColor = subblockColors[minColorIndex];
+ const R8G8B8A8 &maxColor = subblockColors[maxColorIndex];
+
+ uint32_t bits;
+ uint16_t max16 = RGB8ToRGB565(maxColor);
+ uint16_t min16 = RGB8ToRGB565(minColor);
+ if (max16 != min16)
+ {
+ // Find the best BC1 code for each pixel
+ bits = matchBC1Bits(pixelIndices, pixelIndexCounts, subblockColors, numColors, minColor,
+ maxColor, nonOpaquePunchThroughAlpha);
+ }
+ else
+ {
+ // Same colors, BC1 index 0 is the color in both opaque and transparent mode
+ bits = 0;
+ // BC1 index 3 is transparent
+ if (nonOpaquePunchThroughAlpha)
+ {
+ for (int i = 0; i < kNumPixelsInBlock; i++)
+ {
+ if (0 == subblockColors[pixelIndices[i]].A)
+ {
+ bits |= (3 << (i * 2));
+ }
+ }
+ }
+ }
+
+ if (max16 < min16)
+ {
+ std::swap(max16, min16);
+
+ uint32_t xorMask = 0;
+ if (nonOpaquePunchThroughAlpha)
+ {
+ // In transparent mode switching the colors is doing the
+ // following code swap: 0 <-> 1. 0xA selects the second bit of
+ // each code, bits >> 1 selects the first bit of the code when
+ // the seconds bit is set (case 2 and 3). We invert all the
+ // non-selected bits, that is the first bit when the code is
+ // 0 or 1.
+ xorMask = ~((bits >> 1) | 0xAAAAAAAA);
+ }
+ else
+ {
+ // In opaque mode switching the two colors is doing the
+ // following code swaps: 0 <-> 1 and 2 <-> 3. This is
+ // equivalent to flipping the first bit of each code
+ // (5 = 0b0101)
+ xorMask = 0x55555555;
+ }
+ bits ^= xorMask;
+ }
+
+ struct BC1Block
+ {
+ uint16_t color0;
+ uint16_t color1;
+ uint32_t bits;
+ };
+
+ // Encode the opaqueness in the order of the two BC1 colors
+ BC1Block *dest = reinterpret_cast<BC1Block *>(bc1);
+ if (nonOpaquePunchThroughAlpha)
+ {
+ dest->color0 = min16;
+ dest->color1 = max16;
+ }
+ else
+ {
+ dest->color0 = max16;
+ dest->color1 = min16;
+ }
+ dest->bits = bits;
+ }
+
+ void transcodeIndividualBlockToBC1(uint8_t *dest,
+ size_t x,
+ size_t y,
+ size_t w,
+ size_t h,
+ const uint8_t alphaValues[4][4],
+ bool nonOpaquePunchThroughAlpha) const
+ {
+ const auto &block = u.idht.mode.idm.colors.indiv;
+ int r1 = extend_4to8bits(block.R1);
+ int g1 = extend_4to8bits(block.G1);
+ int b1 = extend_4to8bits(block.B1);
+ int r2 = extend_4to8bits(block.R2);
+ int g2 = extend_4to8bits(block.G2);
+ int b2 = extend_4to8bits(block.B2);
+ transcodeIndividualOrDifferentialBlockToBC1(dest, x, y, w, h, r1, g1, b1, r2, g2, b2,
+ alphaValues, nonOpaquePunchThroughAlpha);
+ }
+
+ void transcodeDifferentialBlockToBC1(uint8_t *dest,
+ size_t x,
+ size_t y,
+ size_t w,
+ size_t h,
+ const uint8_t alphaValues[4][4],
+ bool nonOpaquePunchThroughAlpha) const
+ {
+ const auto &block = u.idht.mode.idm.colors.diff;
+ int b1 = extend_5to8bits(block.B);
+ int g1 = extend_5to8bits(block.G);
+ int r1 = extend_5to8bits(block.R);
+ int r2 = extend_5to8bits(block.R + block.dR);
+ int g2 = extend_5to8bits(block.G + block.dG);
+ int b2 = extend_5to8bits(block.B + block.dB);
+ transcodeIndividualOrDifferentialBlockToBC1(dest, x, y, w, h, r1, g1, b1, r2, g2, b2,
+ alphaValues, nonOpaquePunchThroughAlpha);
+ }
+
+ void extractPixelIndices(int *pixelIndices,
+ int *pixelIndicesCounts,
+ size_t x,
+ size_t y,
+ size_t w,
+ size_t h,
+ bool flipbit,
+ size_t subblockIdx) const
+ {
+ size_t dxBegin = 0;
+ size_t dxEnd = 4;
+ size_t dyBegin = subblockIdx * 2;
+ size_t dyEnd = dyBegin + 2;
+ if (!flipbit)
+ {
+ std::swap(dxBegin, dyBegin);
+ std::swap(dxEnd, dyEnd);
+ }
+
+ for (size_t j = dyBegin; j < dyEnd; j++)
+ {
+ int *row = &pixelIndices[j * 4];
+ for (size_t i = dxBegin; i < dxEnd; i++)
+ {
+ const size_t pixelIndex = subblockIdx * 4 + getIndex(i, j);
+ row[i] = static_cast<int>(pixelIndex);
+ pixelIndicesCounts[pixelIndex]++;
+ }
+ }
+ }
+
+ void selectEndPointPCA(const int *pixelIndexCounts,
+ const R8G8B8A8 *subblockColors,
+ size_t numColors,
+ int *minColorIndex,
+ int *maxColorIndex) const
+ {
+ // determine color distribution
+ int mu[3], min[3], max[3];
+ for (int ch = 0; ch < 3; ch++)
+ {
+ int muv = 0;
+ int minv = 255;
+ int maxv = 0;
+ for (size_t i = 0; i < numColors; i++)
+ {
+ const int count = pixelIndexCounts[i];
+ if (count > 0)
+ {
+ const auto &pixel = subblockColors[i];
+ if (pixel.A > 0)
+ {
+ // Non-transparent pixels
+ muv += (&pixel.R)[ch] * count;
+ minv = std::min<int>(minv, (&pixel.R)[ch]);
+ maxv = std::max<int>(maxv, (&pixel.R)[ch]);
+ }
+ }
+ }
+
+ mu[ch] = (muv + kNumPixelsInBlock / 2) / kNumPixelsInBlock;
+ min[ch] = minv;
+ max[ch] = maxv;
+ }
+
+ // determine covariance matrix
+ int cov[6] = {0, 0, 0, 0, 0, 0};
+ for (size_t i = 0; i < numColors; i++)
+ {
+ const int count = pixelIndexCounts[i];
+ if (count > 0)
+ {
+ const auto &pixel = subblockColors[i];
+ if (pixel.A > 0)
+ {
+ int r = pixel.R - mu[0];
+ int g = pixel.G - mu[1];
+ int b = pixel.B - mu[2];
+
+ cov[0] += r * r * count;
+ cov[1] += r * g * count;
+ cov[2] += r * b * count;
+ cov[3] += g * g * count;
+ cov[4] += g * b * count;
+ cov[5] += b * b * count;
+ }
+ }
+ }
+
+ // Power iteration algorithm to get the eigenvalues and eigenvector
+
+ // Starts with diagonal vector
+ float vfr = static_cast<float>(max[0] - min[0]);
+ float vfg = static_cast<float>(max[1] - min[1]);
+ float vfb = static_cast<float>(max[2] - min[2]);
+ float eigenvalue = 0.0f;
+
+ constexpr size_t kPowerIterations = 4;
+ for (size_t i = 0; i < kPowerIterations; i++)
+ {
+ float r = vfr * cov[0] + vfg * cov[1] + vfb * cov[2];
+ float g = vfr * cov[1] + vfg * cov[3] + vfb * cov[4];
+ float b = vfr * cov[2] + vfg * cov[4] + vfb * cov[5];
+
+ vfr = r;
+ vfg = g;
+ vfb = b;
+
+ eigenvalue = sqrt(r * r + g * g + b * b);
+ if (eigenvalue > 0)
+ {
+ float invNorm = 1.0f / eigenvalue;
+ vfr *= invNorm;
+ vfg *= invNorm;
+ vfb *= invNorm;
+ }
+ }
+
+ int vr, vg, vb;
+
+ static const float kDefaultLuminanceThreshold = 4.0f * 255;
+ static const float kQuantizeRange = 512.0f;
+ if (eigenvalue < kDefaultLuminanceThreshold) // too small, default to luminance
+ {
+ // Luminance weights defined by ITU-R Recommendation BT.601, scaled by 1000
+ vr = 299;
+ vg = 587;
+ vb = 114;
+ }
+ else
+ {
+ // From the eigenvalue and eigenvector, choose the axis to project
+ // colors on. When projecting colors we want to do integer computations
+ // for speed, so we normalize the eigenvector to the [0, 512] range.
+ float magn = std::max(std::max(std::abs(vfr), std::abs(vfg)), std::abs(vfb));
+ magn = kQuantizeRange / magn;
+ vr = static_cast<int>(vfr * magn);
+ vg = static_cast<int>(vfg * magn);
+ vb = static_cast<int>(vfb * magn);
+ }
+
+ // Pick colors at extreme points
+ int minD = INT_MAX;
+ int maxD = 0;
+ size_t minIndex = 0;
+ size_t maxIndex = 0;
+ for (size_t i = 0; i < numColors; i++)
+ {
+ const int count = pixelIndexCounts[i];
+ if (count > 0)
+ {
+ const auto &pixel = subblockColors[i];
+ if (pixel.A > 0)
+ {
+ int dot = pixel.R * vr + pixel.G * vg + pixel.B * vb;
+ if (dot < minD)
+ {
+ minD = dot;
+ minIndex = i;
+ }
+ if (dot > maxD)
+ {
+ maxD = dot;
+ maxIndex = i;
+ }
+ }
+ }
+ }
+
+ *minColorIndex = static_cast<int>(minIndex);
+ *maxColorIndex = static_cast<int>(maxIndex);
+ }
+
+ void transcodeIndividualOrDifferentialBlockToBC1(uint8_t *dest,
+ size_t x,
+ size_t y,
+ size_t w,
+ size_t h,
+ int r1,
+ int g1,
+ int b1,
+ int r2,
+ int g2,
+ int b2,
+ const uint8_t alphaValues[4][4],
+ bool nonOpaquePunchThroughAlpha) const
+ {
+ // A BC1 block has 2 endpoints, pixels is encoded as linear
+ // interpolations of them. A ETC1/ETC2 individual or differential block
+ // has 2 subblocks. Each subblock has one color and a modifier. We
+ // select axis by principal component analysis (PCA) to use as
+ // our two BC1 endpoints and then map pixels to BC1 by projecting on the
+ // line between the two endpoints and choosing the right fraction.
+
+ // The goal of this algorithm is make it faster than decode ETC to RGBs
+ // and then encode to BC. To achieve this, we only extract subblock
+ // colors, pixel indices, and counts of each pixel indices from ETC.
+ // With those information, we can only encode used subblock colors
+ // to BC1, and copy the bits to the right pixels.
+ // Fully decode and encode need to process 16 RGBA pixels. With this
+ // algorithm, it's 8 pixels at maximum for a individual or
+ // differential block. Saves us bandwidth and computations.
+
+ static const size_t kNumColors = 8;
+
+ const IntensityModifier *intensityModifier =
+ nonOpaquePunchThroughAlpha ? intensityModifierNonOpaque : intensityModifierDefault;
+
+ // Compute the colors that pixels can have in each subblock both for
+ // the decoding of the RGBA data and BC1 encoding
+ R8G8B8A8 subblockColors[kNumColors];
+ for (size_t modifierIdx = 0; modifierIdx < 4; modifierIdx++)
+ {
+ if (nonOpaquePunchThroughAlpha && (modifierIdx == 2))
+ {
+ // In ETC opaque punch through formats, individual and
+ // differential blocks take index 2 as transparent pixel.
+ // Thus we don't need to compute its color, just assign it
+ // as black.
+ subblockColors[modifierIdx] = createRGBA(0, 0, 0, 0);
+ subblockColors[4 + modifierIdx] = createRGBA(0, 0, 0, 0);
+ }
+ else
+ {
+ const int i1 = intensityModifier[u.idht.mode.idm.cw1][modifierIdx];
+ subblockColors[modifierIdx] = createRGBA(r1 + i1, g1 + i1, b1 + i1);
+
+ const int i2 = intensityModifier[u.idht.mode.idm.cw2][modifierIdx];
+ subblockColors[4 + modifierIdx] = createRGBA(r2 + i2, g2 + i2, b2 + i2);
+ }
+ }
+
+ int pixelIndices[kNumPixelsInBlock];
+ int pixelIndexCounts[kNumColors] = {0};
+ // Extract pixel indices from a ETC block.
+ for (size_t blockIdx = 0; blockIdx < 2; blockIdx++)
+ {
+ extractPixelIndices(pixelIndices, pixelIndexCounts, x, y, w, h, u.idht.mode.idm.flipbit,
+ blockIdx);
+ }
+
+ int minColorIndex, maxColorIndex;
+ selectEndPointPCA(pixelIndexCounts, subblockColors, kNumColors, &minColorIndex,
+ &maxColorIndex);
+
+ packBC1(dest, pixelIndices, pixelIndexCounts, subblockColors, kNumColors, minColorIndex,
+ maxColorIndex, nonOpaquePunchThroughAlpha);
+ }
+
+ void transcodeTBlockToBC1(uint8_t *dest,
+ size_t x,
+ size_t y,
+ size_t w,
+ size_t h,
+ const uint8_t alphaValues[4][4],
+ bool nonOpaquePunchThroughAlpha) const
+ {
+ static const size_t kNumColors = 4;
+
+ // Table C.8, distance index for T and H modes
+ const auto &block = u.idht.mode.tm;
+
+ int r1 = extend_4to8bits(block.TR1a << 2 | block.TR1b);
+ int g1 = extend_4to8bits(block.TG1);
+ int b1 = extend_4to8bits(block.TB1);
+ int r2 = extend_4to8bits(block.TR2);
+ int g2 = extend_4to8bits(block.TG2);
+ int b2 = extend_4to8bits(block.TB2);
+
+ static int distance[8] = {3, 6, 11, 16, 23, 32, 41, 64};
+ const int d = distance[block.Tda << 1 | block.Tdb];
+
+ // In ETC opaque punch through formats, index == 2 means transparent pixel.
+ // Thus we don't need to compute its color, just assign it as black.
+ const R8G8B8A8 paintColors[kNumColors] = {
+ createRGBA(r1, g1, b1),
+ createRGBA(r2 + d, g2 + d, b2 + d),
+ nonOpaquePunchThroughAlpha ? createRGBA(0, 0, 0, 0) : createRGBA(r2, g2, b2),
+ createRGBA(r2 - d, g2 - d, b2 - d),
+ };
+
+ int pixelIndices[kNumPixelsInBlock];
+ int pixelIndexCounts[kNumColors] = {0};
+ for (size_t j = 0; j < 4; j++)
+ {
+ int *row = &pixelIndices[j * 4];
+ for (size_t i = 0; i < 4; i++)
+ {
+ const size_t pixelIndex = getIndex(i, j);
+ row[i] = static_cast<int>(pixelIndex);
+ pixelIndexCounts[pixelIndex]++;
+ }
+ }
+
+ int minColorIndex, maxColorIndex;
+ selectEndPointPCA(pixelIndexCounts, paintColors, kNumColors, &minColorIndex,
+ &maxColorIndex);
+
+ packBC1(dest, pixelIndices, pixelIndexCounts, paintColors, kNumColors, minColorIndex,
+ maxColorIndex, nonOpaquePunchThroughAlpha);
+ }
+
+ void transcodeHBlockToBC1(uint8_t *dest,
+ size_t x,
+ size_t y,
+ size_t w,
+ size_t h,
+ const uint8_t alphaValues[4][4],
+ bool nonOpaquePunchThroughAlpha) const
+ {
+ static const size_t kNumColors = 4;
+
+ // Table C.8, distance index for T and H modes
+ const auto &block = u.idht.mode.hm;
+
+ int r1 = extend_4to8bits(block.HR1);
+ int g1 = extend_4to8bits(block.HG1a << 1 | block.HG1b);
+ int b1 = extend_4to8bits(block.HB1a << 3 | block.HB1b << 1 | block.HB1c);
+ int r2 = extend_4to8bits(block.HR2);
+ int g2 = extend_4to8bits(block.HG2a << 1 | block.HG2b);
+ int b2 = extend_4to8bits(block.HB2);
+
+ static const int distance[8] = {3, 6, 11, 16, 23, 32, 41, 64};
+ const int orderingTrickBit =
+ ((r1 << 16 | g1 << 8 | b1) >= (r2 << 16 | g2 << 8 | b2) ? 1 : 0);
+ const int d = distance[(block.Hda << 2) | (block.Hdb << 1) | orderingTrickBit];
+
+ // In ETC opaque punch through formats, index == 2 means transparent pixel.
+ // Thus we don't need to compute its color, just assign it as black.
+ const R8G8B8A8 paintColors[kNumColors] = {
+ createRGBA(r1 + d, g1 + d, b1 + d),
+ createRGBA(r1 - d, g1 - d, b1 - d),
+ nonOpaquePunchThroughAlpha ? createRGBA(0, 0, 0, 0)
+ : createRGBA(r2 + d, g2 + d, b2 + d),
+ createRGBA(r2 - d, g2 - d, b2 - d),
+ };
+
+ int pixelIndices[kNumPixelsInBlock];
+ int pixelIndexCounts[kNumColors] = {0};
+ for (size_t j = 0; j < 4; j++)
+ {
+ int *row = &pixelIndices[j * 4];
+ for (size_t i = 0; i < 4; i++)
+ {
+ const size_t pixelIndex = getIndex(i, j);
+ row[i] = static_cast<int>(pixelIndex);
+ pixelIndexCounts[pixelIndex]++;
+ }
+ }
+
+ int minColorIndex, maxColorIndex;
+ selectEndPointPCA(pixelIndexCounts, paintColors, kNumColors, &minColorIndex,
+ &maxColorIndex);
+
+ packBC1(dest, pixelIndices, pixelIndexCounts, paintColors, kNumColors, minColorIndex,
+ maxColorIndex, nonOpaquePunchThroughAlpha);
+ }
+
+ void transcodePlanarBlockToBC1(uint8_t *dest,
+ size_t x,
+ size_t y,
+ size_t w,
+ size_t h,
+ const uint8_t alphaValues[4][4]) const
+ {
+ static const size_t kNumColors = kNumPixelsInBlock;
+
+ R8G8B8A8 rgbaBlock[kNumColors];
+ decodePlanarBlock(reinterpret_cast<uint8_t *>(rgbaBlock), x, y, w, h, sizeof(R8G8B8A8) * 4,
+ alphaValues);
+
+ // Planar block doesn't have a color table, fill indices as full
+ int pixelIndices[kNumPixelsInBlock] = {0, 1, 2, 3, 4, 5, 6, 7,
+ 8, 9, 10, 11, 12, 13, 14, 15};
+ int pixelIndexCounts[kNumColors] = {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1};
+
+ int minColorIndex, maxColorIndex;
+ selectEndPointPCA(pixelIndexCounts, rgbaBlock, kNumColors, &minColorIndex, &maxColorIndex);
+
+ packBC1(dest, pixelIndices, pixelIndexCounts, rgbaBlock, kNumColors, minColorIndex,
+ maxColorIndex, false);
+ }
+
+ // Single channel utility functions
+ int getSingleEACChannel(size_t x, size_t y, bool isSigned) const
+ {
+ int codeword = isSigned ? u.scblk.base_codeword.s : u.scblk.base_codeword.us;
+ int multiplier = (u.scblk.multiplier == 0) ? 1 : u.scblk.multiplier * 8;
+ return codeword * 8 + 4 + getSingleChannelModifier(x, y) * multiplier;
+ }
+
+ int getSingleETC2Channel(size_t x, size_t y, bool isSigned) const
+ {
+ int codeword = isSigned ? u.scblk.base_codeword.s : u.scblk.base_codeword.us;
+ return codeword + getSingleChannelModifier(x, y) * u.scblk.multiplier;
+ }
+
+ int getSingleChannelIndex(size_t x, size_t y) const
+ {
+ ASSERT(x < 4 && y < 4);
+
+ // clang-format off
+ switch (x * 4 + y)
+ {
+ case 0: return u.scblk.ma;
+ case 1: return u.scblk.mb;
+ case 2: return u.scblk.mc1 << 1 | u.scblk.mc2;
+ case 3: return u.scblk.md;
+ case 4: return u.scblk.me;
+ case 5: return u.scblk.mf1 << 2 | u.scblk.mf2;
+ case 6: return u.scblk.mg;
+ case 7: return u.scblk.mh;
+ case 8: return u.scblk.mi;
+ case 9: return u.scblk.mj;
+ case 10: return u.scblk.mk1 << 1 | u.scblk.mk2;
+ case 11: return u.scblk.ml;
+ case 12: return u.scblk.mm;
+ case 13: return u.scblk.mn1 << 2 | u.scblk.mn2;
+ case 14: return u.scblk.mo;
+ case 15: return u.scblk.mp;
+ default: UNREACHABLE(); return 0;
+ }
+ // clang-format on
+ }
+
+ int getSingleChannelModifier(size_t x, size_t y) const
+ {
+ // clang-format off
+ static const int modifierTable[16][8] =
+ {
+ { -3, -6, -9, -15, 2, 5, 8, 14 },
+ { -3, -7, -10, -13, 2, 6, 9, 12 },
+ { -2, -5, -8, -13, 1, 4, 7, 12 },
+ { -2, -4, -6, -13, 1, 3, 5, 12 },
+ { -3, -6, -8, -12, 2, 5, 7, 11 },
+ { -3, -7, -9, -11, 2, 6, 8, 10 },
+ { -4, -7, -8, -11, 3, 6, 7, 10 },
+ { -3, -5, -8, -11, 2, 4, 7, 10 },
+ { -2, -6, -8, -10, 1, 5, 7, 9 },
+ { -2, -5, -8, -10, 1, 4, 7, 9 },
+ { -2, -4, -8, -10, 1, 3, 7, 9 },
+ { -2, -5, -7, -10, 1, 4, 6, 9 },
+ { -3, -4, -7, -10, 2, 3, 6, 9 },
+ { -1, -2, -3, -10, 0, 1, 2, 9 },
+ { -4, -6, -8, -9, 3, 5, 7, 8 },
+ { -3, -5, -7, -9, 2, 4, 6, 8 }
+ };
+ // clang-format on
+
+ return modifierTable[u.scblk.table_index][getSingleChannelIndex(x, y)];
+ }
+};
+
+// clang-format off
+static const uint8_t DefaultETCAlphaValues[4][4] =
+{
+ { 255, 255, 255, 255 },
+ { 255, 255, 255, 255 },
+ { 255, 255, 255, 255 },
+ { 255, 255, 255, 255 },
+};
+
+// clang-format on
+void LoadR11EACToR8(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch,
+ bool isSigned)
+{
+ for (size_t z = 0; z < depth; z++)
+ {
+ for (size_t y = 0; y < height; y += 4)
+ {
+ const ETC2Block *sourceRow =
+ priv::OffsetDataPointer<ETC2Block>(input, y / 4, z, inputRowPitch, inputDepthPitch);
+ uint8_t *destRow =
+ priv::OffsetDataPointer<uint8_t>(output, y, z, outputRowPitch, outputDepthPitch);
+
+ for (size_t x = 0; x < width; x += 4)
+ {
+ const ETC2Block *sourceBlock = sourceRow + (x / 4);
+ uint8_t *destPixels = destRow + x;
+
+ sourceBlock->decodeAsSingleETC2Channel(destPixels, x, y, width, height, 1,
+ outputRowPitch, isSigned);
+ }
+ }
+ }
+}
+
+void LoadRG11EACToRG8(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch,
+ bool isSigned)
+{
+ for (size_t z = 0; z < depth; z++)
+ {
+ for (size_t y = 0; y < height; y += 4)
+ {
+ const ETC2Block *sourceRow =
+ priv::OffsetDataPointer<ETC2Block>(input, y / 4, z, inputRowPitch, inputDepthPitch);
+ uint8_t *destRow =
+ priv::OffsetDataPointer<uint8_t>(output, y, z, outputRowPitch, outputDepthPitch);
+
+ for (size_t x = 0; x < width; x += 4)
+ {
+ uint8_t *destPixelsRed = destRow + (x * 2);
+ const ETC2Block *sourceBlockRed = sourceRow + (x / 2);
+ sourceBlockRed->decodeAsSingleETC2Channel(destPixelsRed, x, y, width, height, 2,
+ outputRowPitch, isSigned);
+
+ uint8_t *destPixelsGreen = destPixelsRed + 1;
+ const ETC2Block *sourceBlockGreen = sourceBlockRed + 1;
+ sourceBlockGreen->decodeAsSingleETC2Channel(destPixelsGreen, x, y, width, height, 2,
+ outputRowPitch, isSigned);
+ }
+ }
+ }
+}
+
+void LoadR11EACToR16(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch,
+ bool isSigned,
+ bool isFloat)
+{
+ for (size_t z = 0; z < depth; z++)
+ {
+ for (size_t y = 0; y < height; y += 4)
+ {
+ const ETC2Block *sourceRow =
+ priv::OffsetDataPointer<ETC2Block>(input, y / 4, z, inputRowPitch, inputDepthPitch);
+ uint16_t *destRow =
+ priv::OffsetDataPointer<uint16_t>(output, y, z, outputRowPitch, outputDepthPitch);
+
+ for (size_t x = 0; x < width; x += 4)
+ {
+ const ETC2Block *sourceBlock = sourceRow + (x / 4);
+ uint16_t *destPixels = destRow + x;
+
+ sourceBlock->decodeAsSingleEACChannel(destPixels, x, y, width, height, 1,
+ outputRowPitch, isSigned, isFloat);
+ }
+ }
+ }
+}
+
+void LoadRG11EACToRG16(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch,
+ bool isSigned,
+ bool isFloat)
+{
+ for (size_t z = 0; z < depth; z++)
+ {
+ for (size_t y = 0; y < height; y += 4)
+ {
+ const ETC2Block *sourceRow =
+ priv::OffsetDataPointer<ETC2Block>(input, y / 4, z, inputRowPitch, inputDepthPitch);
+ uint16_t *destRow =
+ priv::OffsetDataPointer<uint16_t>(output, y, z, outputRowPitch, outputDepthPitch);
+
+ for (size_t x = 0; x < width; x += 4)
+ {
+ uint16_t *destPixelsRed = destRow + (x * 2);
+ const ETC2Block *sourceBlockRed = sourceRow + (x / 2);
+ sourceBlockRed->decodeAsSingleEACChannel(destPixelsRed, x, y, width, height, 2,
+ outputRowPitch, isSigned, isFloat);
+
+ uint16_t *destPixelsGreen = destPixelsRed + 1;
+ const ETC2Block *sourceBlockGreen = sourceBlockRed + 1;
+ sourceBlockGreen->decodeAsSingleEACChannel(destPixelsGreen, x, y, width, height, 2,
+ outputRowPitch, isSigned, isFloat);
+ }
+ }
+ }
+}
+
+void LoadETC2RGB8ToRGBA8(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch,
+ bool punchthroughAlpha)
+{
+ for (size_t z = 0; z < depth; z++)
+ {
+ for (size_t y = 0; y < height; y += 4)
+ {
+ const ETC2Block *sourceRow =
+ priv::OffsetDataPointer<ETC2Block>(input, y / 4, z, inputRowPitch, inputDepthPitch);
+ uint8_t *destRow =
+ priv::OffsetDataPointer<uint8_t>(output, y, z, outputRowPitch, outputDepthPitch);
+
+ for (size_t x = 0; x < width; x += 4)
+ {
+ const ETC2Block *sourceBlock = sourceRow + (x / 4);
+ uint8_t *destPixels = destRow + (x * 4);
+
+ sourceBlock->decodeAsRGB(destPixels, x, y, width, height, outputRowPitch,
+ DefaultETCAlphaValues, punchthroughAlpha);
+ }
+ }
+ }
+}
+
+void LoadETC2RGB8ToBC1(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch,
+ bool punchthroughAlpha)
+{
+ for (size_t z = 0; z < depth; z++)
+ {
+ for (size_t y = 0; y < height; y += 4)
+ {
+ const ETC2Block *sourceRow =
+ priv::OffsetDataPointer<ETC2Block>(input, y / 4, z, inputRowPitch, inputDepthPitch);
+ uint8_t *destRow = priv::OffsetDataPointer<uint8_t>(output, y / 4, z, outputRowPitch,
+ outputDepthPitch);
+
+ for (size_t x = 0; x < width; x += 4)
+ {
+ const ETC2Block *sourceBlock = sourceRow + (x / 4);
+ uint8_t *destPixels = destRow + (x * 2);
+
+ sourceBlock->transcodeAsBC1(destPixels, x, y, width, height, DefaultETCAlphaValues,
+ punchthroughAlpha);
+ }
+ }
+ }
+}
+
+void LoadETC2RGBA8ToRGBA8(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch,
+ bool srgb)
+{
+ uint8_t decodedAlphaValues[4][4];
+
+ for (size_t z = 0; z < depth; z++)
+ {
+ for (size_t y = 0; y < height; y += 4)
+ {
+ const ETC2Block *sourceRow =
+ priv::OffsetDataPointer<ETC2Block>(input, y / 4, z, inputRowPitch, inputDepthPitch);
+ uint8_t *destRow =
+ priv::OffsetDataPointer<uint8_t>(output, y, z, outputRowPitch, outputDepthPitch);
+
+ for (size_t x = 0; x < width; x += 4)
+ {
+ const ETC2Block *sourceBlockAlpha = sourceRow + (x / 2);
+ sourceBlockAlpha->decodeAsSingleETC2Channel(
+ reinterpret_cast<uint8_t *>(decodedAlphaValues), x, y, width, height, 1, 4,
+ false);
+
+ uint8_t *destPixels = destRow + (x * 4);
+ const ETC2Block *sourceBlockRGB = sourceBlockAlpha + 1;
+ sourceBlockRGB->decodeAsRGB(destPixels, x, y, width, height, outputRowPitch,
+ decodedAlphaValues, false);
+ }
+ }
+ }
+}
+
+} // anonymous namespace
+
+void LoadETC1RGB8ToRGBA8(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ LoadETC2RGB8ToRGBA8(width, height, depth, input, inputRowPitch, inputDepthPitch, output,
+ outputRowPitch, outputDepthPitch, false);
+}
+
+void LoadETC1RGB8ToBC1(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ LoadETC2RGB8ToBC1(width, height, depth, input, inputRowPitch, inputDepthPitch, output,
+ outputRowPitch, outputDepthPitch, false);
+}
+
+void LoadEACR11ToR8(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ LoadR11EACToR8(width, height, depth, input, inputRowPitch, inputDepthPitch, output,
+ outputRowPitch, outputDepthPitch, false);
+}
+
+void LoadEACR11SToR8(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ LoadR11EACToR8(width, height, depth, input, inputRowPitch, inputDepthPitch, output,
+ outputRowPitch, outputDepthPitch, true);
+}
+
+void LoadEACRG11ToRG8(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ LoadRG11EACToRG8(width, height, depth, input, inputRowPitch, inputDepthPitch, output,
+ outputRowPitch, outputDepthPitch, false);
+}
+
+void LoadEACRG11SToRG8(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ LoadRG11EACToRG8(width, height, depth, input, inputRowPitch, inputDepthPitch, output,
+ outputRowPitch, outputDepthPitch, true);
+}
+
+void LoadEACR11ToR16(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ LoadR11EACToR16(width, height, depth, input, inputRowPitch, inputDepthPitch, output,
+ outputRowPitch, outputDepthPitch, false, false);
+}
+
+void LoadEACR11SToR16(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ LoadR11EACToR16(width, height, depth, input, inputRowPitch, inputDepthPitch, output,
+ outputRowPitch, outputDepthPitch, true, false);
+}
+
+void LoadEACRG11ToRG16(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ LoadRG11EACToRG16(width, height, depth, input, inputRowPitch, inputDepthPitch, output,
+ outputRowPitch, outputDepthPitch, false, false);
+}
+
+void LoadEACRG11SToRG16(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ LoadRG11EACToRG16(width, height, depth, input, inputRowPitch, inputDepthPitch, output,
+ outputRowPitch, outputDepthPitch, true, false);
+}
+
+void LoadEACR11ToR16F(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ LoadR11EACToR16(width, height, depth, input, inputRowPitch, inputDepthPitch, output,
+ outputRowPitch, outputDepthPitch, false, true);
+}
+
+void LoadEACR11SToR16F(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ LoadR11EACToR16(width, height, depth, input, inputRowPitch, inputDepthPitch, output,
+ outputRowPitch, outputDepthPitch, true, true);
+}
+
+void LoadEACRG11ToRG16F(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ LoadRG11EACToRG16(width, height, depth, input, inputRowPitch, inputDepthPitch, output,
+ outputRowPitch, outputDepthPitch, false, true);
+}
+
+void LoadEACRG11SToRG16F(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ LoadRG11EACToRG16(width, height, depth, input, inputRowPitch, inputDepthPitch, output,
+ outputRowPitch, outputDepthPitch, true, true);
+}
+
+void LoadETC2RGB8ToRGBA8(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ LoadETC2RGB8ToRGBA8(width, height, depth, input, inputRowPitch, inputDepthPitch, output,
+ outputRowPitch, outputDepthPitch, false);
+}
+
+void LoadETC2RGB8ToBC1(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ LoadETC2RGB8ToBC1(width, height, depth, input, inputRowPitch, inputDepthPitch, output,
+ outputRowPitch, outputDepthPitch, false);
+}
+
+void LoadETC2SRGB8ToRGBA8(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ LoadETC2RGB8ToRGBA8(width, height, depth, input, inputRowPitch, inputDepthPitch, output,
+ outputRowPitch, outputDepthPitch, false);
+}
+
+void LoadETC2SRGB8ToBC1(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ LoadETC2RGB8ToBC1(width, height, depth, input, inputRowPitch, inputDepthPitch, output,
+ outputRowPitch, outputDepthPitch, false);
+}
+
+void LoadETC2RGB8A1ToRGBA8(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ LoadETC2RGB8ToRGBA8(width, height, depth, input, inputRowPitch, inputDepthPitch, output,
+ outputRowPitch, outputDepthPitch, true);
+}
+
+void LoadETC2RGB8A1ToBC1(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ LoadETC2RGB8ToBC1(width, height, depth, input, inputRowPitch, inputDepthPitch, output,
+ outputRowPitch, outputDepthPitch, true);
+}
+
+void LoadETC2SRGB8A1ToRGBA8(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ LoadETC2RGB8ToRGBA8(width, height, depth, input, inputRowPitch, inputDepthPitch, output,
+ outputRowPitch, outputDepthPitch, true);
+}
+
+void LoadETC2SRGB8A1ToBC1(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ LoadETC2RGB8ToBC1(width, height, depth, input, inputRowPitch, inputDepthPitch, output,
+ outputRowPitch, outputDepthPitch, true);
+}
+
+void LoadETC2RGBA8ToRGBA8(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ LoadETC2RGBA8ToRGBA8(width, height, depth, input, inputRowPitch, inputDepthPitch, output,
+ outputRowPitch, outputDepthPitch, false);
+}
+
+void LoadETC2SRGBA8ToSRGBA8(size_t width,
+ size_t height,
+ size_t depth,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ LoadETC2RGBA8ToRGBA8(width, height, depth, input, inputRowPitch, inputDepthPitch, output,
+ outputRowPitch, outputDepthPitch, true);
+}
+
+} // namespace angle
diff --git a/gfx/angle/checkout/src/image_util/loadimage_paletted.cpp b/gfx/angle/checkout/src/image_util/loadimage_paletted.cpp
new file mode 100644
index 0000000000..af36ce3cd6
--- /dev/null
+++ b/gfx/angle/checkout/src/image_util/loadimage_paletted.cpp
@@ -0,0 +1,158 @@
+//
+// Copyright 2022 The ANGLE Project Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+//
+
+// loadimage_paletted.cpp: Decodes GL_PALETTE_* textures.
+
+#include "image_util/loadimage.h"
+
+#include <type_traits>
+#include "common/mathutil.h"
+
+#include "image_util/imageformats.h"
+
+namespace angle
+{
+
+namespace
+{
+
+template <typename T>
+R8G8B8A8 ReadColor(const T *src)
+{
+ gl::ColorF tmp;
+ T::readColor(&tmp, src);
+ R8G8B8A8 rgba;
+ R8G8B8A8::writeColor(&rgba, &tmp);
+ return rgba;
+}
+
+size_t DecodeIndexIntoPalette(const uint8_t *row, size_t i, uint32_t indexBits)
+{
+ switch (indexBits)
+ {
+ case 4:
+ {
+ // From OES_compressed_paletted_texture, section Additions to
+ // Chapter 3 of the OpenGL 1.3 Specification (Rasterization):
+ //
+ // Texel Data Formats for compressed paletted textures
+ //
+ // PALETTE4_xxx:
+ //
+ // 7 6 5 4 3 2 1 0
+ // ---------------
+ // | 1st | 2nd |
+ // | texel | texel |
+ // ---------------
+
+ bool even = i % 2 == 0;
+ return (row[i / 2] >> (even ? 4 : 0)) & 0x0f;
+ }
+
+ case 8:
+ return row[i];
+
+ default:
+ UNREACHABLE();
+ return 0;
+ }
+}
+
+R8G8B8A8 DecodeColor(const uint8_t *src,
+ uint32_t redBlueBits,
+ uint32_t greenBits,
+ uint32_t alphaBits)
+{
+ switch (redBlueBits)
+ {
+ case 8:
+ ASSERT(greenBits == 8);
+ switch (alphaBits)
+ {
+ case 0:
+ return ReadColor<>(reinterpret_cast<const R8G8B8 *>(src));
+ case 8:
+ return ReadColor<>(reinterpret_cast<const R8G8B8A8 *>(src));
+ default:
+ UNREACHABLE();
+ break;
+ }
+ break;
+
+ case 5:
+ switch (greenBits)
+ {
+ case 6:
+ ASSERT(alphaBits == 0);
+ return ReadColor<>(reinterpret_cast<const R5G6B5 *>(src));
+ case 5:
+ ASSERT(alphaBits == 1);
+ return ReadColor<>(reinterpret_cast<const R5G5B5A1 *>(src));
+ default:
+ UNREACHABLE();
+ break;
+ }
+ break;
+
+ case 4:
+ ASSERT(greenBits == 4 && alphaBits == 4);
+ return ReadColor<>(reinterpret_cast<const R4G4B4A4 *>(src));
+
+ default:
+ UNREACHABLE();
+ break;
+ }
+
+ UNREACHABLE();
+ return R8G8B8A8{0, 0, 0, 255};
+}
+
+} // namespace
+
+// See LoadPalettedToRGBA8.
+void LoadPalettedToRGBA8Impl(size_t width,
+ size_t height,
+ size_t depth,
+ uint32_t indexBits,
+ uint32_t redBlueBits,
+ uint32_t greenBits,
+ uint32_t alphaBits,
+ const uint8_t *input,
+ size_t inputRowPitch,
+ size_t inputDepthPitch,
+ uint8_t *output,
+ size_t outputRowPitch,
+ size_t outputDepthPitch)
+{
+ size_t colorBytes = (redBlueBits + greenBits + redBlueBits + alphaBits) / 8;
+ size_t paletteSize = 1 << indexBits;
+ size_t paletteBytes = paletteSize * colorBytes;
+
+ const uint8_t *palette = input;
+
+ const uint8_t *texels = input + paletteBytes; // + TODO(http://anglebug.com/7688): mip levels
+
+ for (size_t z = 0; z < depth; z++)
+ {
+ for (size_t y = 0; y < height; y++)
+ {
+ const uint8_t *srcRow =
+ priv::OffsetDataPointer<uint8_t>(texels, y, z, inputRowPitch, inputDepthPitch);
+ R8G8B8A8 *dstRow =
+ priv::OffsetDataPointer<R8G8B8A8>(output, y, z, outputRowPitch, outputDepthPitch);
+
+ for (size_t x = 0; x < width; x++)
+ {
+ size_t indexIntoPalette = DecodeIndexIntoPalette(srcRow, x, indexBits);
+
+ dstRow[x] = DecodeColor(palette + indexIntoPalette * colorBytes, redBlueBits,
+ greenBits, alphaBits);
+ }
+ }
+ }
+}
+
+} // namespace angle
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-16 11:01:12 +0000