Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 533 insertions, 0 deletions

diff --git a/gfx/layers/BufferTexture.cpp b/gfx/layers/BufferTexture.cpp
new file mode 100644
index 0000000000..a3cedc1840
--- /dev/null
+++ b/gfx/layers/BufferTexture.cpp
@@ -0,0 +1,533 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "BufferTexture.h"
+
+#include <utility>
+
+#include "libyuv.h"
+#include "mozilla/fallible.h"
+#include "mozilla/gfx/2D.h"
+#include "mozilla/gfx/Logging.h"
+#include "mozilla/layers/CompositableForwarder.h"
+#include "mozilla/layers/ISurfaceAllocator.h"
+#include "mozilla/layers/ImageDataSerializer.h"
+#include "mozilla/layers/TextureForwarder.h"
+
+#include "gfxPlatform.h"
+
+#ifdef MOZ_WIDGET_GTK
+#  include "gfxPlatformGtk.h"
+#endif
+
+using mozilla::ipc::IShmemAllocator;
+
+namespace mozilla {
+namespace layers {
+
+class MemoryTextureData : public BufferTextureData {
+ public:
+  static MemoryTextureData* Create(gfx::IntSize aSize,
+                                   gfx::SurfaceFormat aFormat,
+                                   gfx::BackendType aMoz2DBackend,
+                                   LayersBackend aLayersBackend,
+                                   TextureFlags aFlags,
+                                   TextureAllocationFlags aAllocFlags,
+                                   IShmemAllocator* aAllocator);
+
+  virtual TextureData* CreateSimilar(
+      LayersIPCChannel* aAllocator, LayersBackend aLayersBackend,
+      TextureFlags aFlags = TextureFlags::DEFAULT,
+      TextureAllocationFlags aAllocFlags = ALLOC_DEFAULT) const override;
+
+  virtual bool Serialize(SurfaceDescriptor& aOutDescriptor) override;
+
+  virtual void Deallocate(LayersIPCChannel*) override;
+
+  MemoryTextureData(const BufferDescriptor& aDesc,
+                    gfx::BackendType aMoz2DBackend, uint8_t* aBuffer,
+                    size_t aBufferSize, bool aAutoDeallocate = false)
+      : BufferTextureData(aDesc, aMoz2DBackend),
+        mBuffer(aBuffer),
+        mBufferSize(aBufferSize),
+        mAutoDeallocate(aAutoDeallocate) {
+    MOZ_ASSERT(aBuffer);
+    MOZ_ASSERT(aBufferSize);
+  }
+
+  virtual ~MemoryTextureData() override {
+    if (mAutoDeallocate) {
+      Deallocate(nullptr);
+    }
+  }
+
+  virtual uint8_t* GetBuffer() override { return mBuffer; }
+
+  virtual size_t GetBufferSize() override { return mBufferSize; }
+
+ protected:
+  uint8_t* mBuffer;
+  size_t mBufferSize;
+  bool mAutoDeallocate;
+};
+
+class ShmemTextureData : public BufferTextureData {
+ public:
+  static ShmemTextureData* Create(gfx::IntSize aSize,
+                                  gfx::SurfaceFormat aFormat,
+                                  gfx::BackendType aMoz2DBackend,
+                                  LayersBackend aLayersBackend,
+                                  TextureFlags aFlags,
+                                  TextureAllocationFlags aAllocFlags,
+                                  IShmemAllocator* aAllocator);
+
+  virtual TextureData* CreateSimilar(
+      LayersIPCChannel* aAllocator, LayersBackend aLayersBackend,
+      TextureFlags aFlags = TextureFlags::DEFAULT,
+      TextureAllocationFlags aAllocFlags = ALLOC_DEFAULT) const override;
+
+  virtual bool Serialize(SurfaceDescriptor& aOutDescriptor) override;
+
+  virtual void Deallocate(LayersIPCChannel* aAllocator) override;
+
+  ShmemTextureData(const BufferDescriptor& aDesc,
+                   gfx::BackendType aMoz2DBackend, mozilla::ipc::Shmem aShmem)
+      : BufferTextureData(aDesc, aMoz2DBackend), mShmem(aShmem) {
+    MOZ_ASSERT(mShmem.Size<uint8_t>());
+  }
+
+  virtual uint8_t* GetBuffer() override { return mShmem.get<uint8_t>(); }
+
+  virtual size_t GetBufferSize() override { return mShmem.Size<uint8_t>(); }
+
+ protected:
+  mozilla::ipc::Shmem mShmem;
+};
+
+BufferTextureData* BufferTextureData::Create(
+    gfx::IntSize aSize, gfx::SurfaceFormat aFormat,
+    gfx::BackendType aMoz2DBackend, LayersBackend aLayersBackend,
+    TextureFlags aFlags, TextureAllocationFlags aAllocFlags,
+    mozilla::ipc::IShmemAllocator* aAllocator, bool aIsSameProcess) {
+  if (!aAllocator || aIsSameProcess) {
+    return MemoryTextureData::Create(aSize, aFormat, aMoz2DBackend,
+                                     aLayersBackend, aFlags, aAllocFlags,
+                                     aAllocator);
+  } else {
+    return ShmemTextureData::Create(aSize, aFormat, aMoz2DBackend,
+                                    aLayersBackend, aFlags, aAllocFlags,
+                                    aAllocator);
+  }
+}
+
+BufferTextureData* BufferTextureData::CreateInternal(
+    LayersIPCChannel* aAllocator, const BufferDescriptor& aDesc,
+    gfx::BackendType aMoz2DBackend, int32_t aBufferSize,
+    TextureFlags aTextureFlags) {
+  if (!aAllocator || aAllocator->IsSameProcess()) {
+    uint8_t* buffer = new (fallible) uint8_t[aBufferSize];
+    if (!buffer) {
+      return nullptr;
+    }
+
+    GfxMemoryImageReporter::DidAlloc(buffer);
+
+    return new MemoryTextureData(aDesc, aMoz2DBackend, buffer, aBufferSize);
+  } else {
+    ipc::Shmem shm;
+    if (!aAllocator->AllocUnsafeShmem(aBufferSize, &shm)) {
+      return nullptr;
+    }
+
+    return new ShmemTextureData(aDesc, aMoz2DBackend, shm);
+  }
+}
+
+BufferTextureData* BufferTextureData::CreateForYCbCr(
+    KnowsCompositor* aAllocator, const gfx::IntRect& aDisplay,
+    const gfx::IntSize& aYSize, uint32_t aYStride,
+    const gfx::IntSize& aCbCrSize, uint32_t aCbCrStride, StereoMode aStereoMode,
+    gfx::ColorDepth aColorDepth, gfx::YUVColorSpace aYUVColorSpace,
+    gfx::ColorRange aColorRange, gfx::ChromaSubsampling aSubsampling,
+    TextureFlags aTextureFlags) {
+  uint32_t bufSize = ImageDataSerializer::ComputeYCbCrBufferSize(
+      aYSize, aYStride, aCbCrSize, aCbCrStride);
+  if (bufSize == 0) {
+    return nullptr;
+  }
+
+  uint32_t yOffset;
+  uint32_t cbOffset;
+  uint32_t crOffset;
+  ImageDataSerializer::ComputeYCbCrOffsets(aYStride, aYSize.height, aCbCrStride,
+                                           aCbCrSize.height, yOffset, cbOffset,
+                                           crOffset);
+
+  YCbCrDescriptor descriptor =
+      YCbCrDescriptor(aDisplay, aYSize, aYStride, aCbCrSize, aCbCrStride,
+                      yOffset, cbOffset, crOffset, aStereoMode, aColorDepth,
+                      aYUVColorSpace, aColorRange, aSubsampling);
+
+  return CreateInternal(
+      aAllocator ? aAllocator->GetTextureForwarder() : nullptr, descriptor,
+      gfx::BackendType::NONE, bufSize, aTextureFlags);
+}
+
+void BufferTextureData::FillInfo(TextureData::Info& aInfo) const {
+  aInfo.size = GetSize();
+  aInfo.format = GetFormat();
+  aInfo.hasSynchronization = false;
+  aInfo.canExposeMappedData = true;
+
+  switch (aInfo.format) {
+    case gfx::SurfaceFormat::YUV:
+    case gfx::SurfaceFormat::UNKNOWN:
+      aInfo.supportsMoz2D = false;
+      break;
+    default:
+      aInfo.supportsMoz2D = true;
+  }
+}
+
+gfx::IntSize BufferTextureData::GetSize() const {
+  return ImageDataSerializer::SizeFromBufferDescriptor(mDescriptor);
+}
+
+gfx::IntRect BufferTextureData::GetPictureRect() const {
+  return ImageDataSerializer::RectFromBufferDescriptor(mDescriptor);
+}
+
+Maybe<gfx::IntSize> BufferTextureData::GetYSize() const {
+  return ImageDataSerializer::YSizeFromBufferDescriptor(mDescriptor);
+}
+
+Maybe<gfx::IntSize> BufferTextureData::GetCbCrSize() const {
+  return ImageDataSerializer::CbCrSizeFromBufferDescriptor(mDescriptor);
+}
+
+Maybe<int32_t> BufferTextureData::GetYStride() const {
+  return ImageDataSerializer::YStrideFromBufferDescriptor(mDescriptor);
+}
+
+Maybe<int32_t> BufferTextureData::GetCbCrStride() const {
+  return ImageDataSerializer::CbCrStrideFromBufferDescriptor(mDescriptor);
+}
+
+Maybe<gfx::YUVColorSpace> BufferTextureData::GetYUVColorSpace() const {
+  return ImageDataSerializer::YUVColorSpaceFromBufferDescriptor(mDescriptor);
+}
+
+Maybe<gfx::ColorDepth> BufferTextureData::GetColorDepth() const {
+  return ImageDataSerializer::ColorDepthFromBufferDescriptor(mDescriptor);
+}
+
+Maybe<StereoMode> BufferTextureData::GetStereoMode() const {
+  return ImageDataSerializer::StereoModeFromBufferDescriptor(mDescriptor);
+}
+
+Maybe<gfx::ChromaSubsampling> BufferTextureData::GetChromaSubsampling() const {
+  return ImageDataSerializer::ChromaSubsamplingFromBufferDescriptor(
+      mDescriptor);
+}
+
+gfx::SurfaceFormat BufferTextureData::GetFormat() const {
+  return ImageDataSerializer::FormatFromBufferDescriptor(mDescriptor);
+}
+
+already_AddRefed<gfx::DrawTarget> BufferTextureData::BorrowDrawTarget() {
+  if (mDescriptor.type() != BufferDescriptor::TRGBDescriptor) {
+    return nullptr;
+  }
+
+  const RGBDescriptor& rgb = mDescriptor.get_RGBDescriptor();
+
+  uint32_t stride = ImageDataSerializer::GetRGBStride(rgb);
+  RefPtr<gfx::DrawTarget> dt;
+  if (gfx::Factory::DoesBackendSupportDataDrawtarget(mMoz2DBackend)) {
+    dt = gfx::Factory::CreateDrawTargetForData(
+        mMoz2DBackend, GetBuffer(), rgb.size(), stride, rgb.format(), true);
+  }
+  if (!dt) {
+    // Fall back to supported platform backend.  Note that mMoz2DBackend
+    // does not match the draw target type.
+    dt = gfxPlatform::CreateDrawTargetForData(GetBuffer(), rgb.size(), stride,
+                                              rgb.format(), true);
+  }
+
+  if (!dt) {
+    gfxCriticalNote << "BorrowDrawTarget failure, original backend "
+                    << (int)mMoz2DBackend;
+  }
+
+  return dt.forget();
+}
+
+bool BufferTextureData::BorrowMappedData(MappedTextureData& aData) {
+  if (GetFormat() == gfx::SurfaceFormat::YUV) {
+    return false;
+  }
+
+  gfx::IntSize size = GetSize();
+
+  aData.data = GetBuffer();
+  aData.size = size;
+  aData.format = GetFormat();
+  aData.stride =
+      ImageDataSerializer::ComputeRGBStride(aData.format, size.width);
+
+  return true;
+}
+
+bool BufferTextureData::BorrowMappedYCbCrData(MappedYCbCrTextureData& aMap) {
+  if (mDescriptor.type() != BufferDescriptor::TYCbCrDescriptor) {
+    return false;
+  }
+
+  const YCbCrDescriptor& desc = mDescriptor.get_YCbCrDescriptor();
+
+  uint8_t* data = GetBuffer();
+  auto ySize = desc.ySize();
+  auto cbCrSize = desc.cbCrSize();
+
+  aMap.stereoMode = desc.stereoMode();
+  aMap.metadata = nullptr;
+  uint32_t bytesPerPixel =
+      BytesPerPixel(SurfaceFormatForColorDepth(desc.colorDepth()));
+
+  aMap.y.data = data + desc.yOffset();
+  aMap.y.size = ySize;
+  aMap.y.stride = desc.yStride();
+  aMap.y.skip = 0;
+  aMap.y.bytesPerPixel = bytesPerPixel;
+
+  aMap.cb.data = data + desc.cbOffset();
+  aMap.cb.size = cbCrSize;
+  aMap.cb.stride = desc.cbCrStride();
+  aMap.cb.skip = 0;
+  aMap.cb.bytesPerPixel = bytesPerPixel;
+
+  aMap.cr.data = data + desc.crOffset();
+  aMap.cr.size = cbCrSize;
+  aMap.cr.stride = desc.cbCrStride();
+  aMap.cr.skip = 0;
+  aMap.cr.bytesPerPixel = bytesPerPixel;
+
+  return true;
+}
+
+bool BufferTextureData::UpdateFromSurface(gfx::SourceSurface* aSurface) {
+  if (mDescriptor.type() != BufferDescriptor::TRGBDescriptor) {
+    return false;
+  }
+  const RGBDescriptor& rgb = mDescriptor.get_RGBDescriptor();
+
+  uint32_t stride = ImageDataSerializer::GetRGBStride(rgb);
+  RefPtr<gfx::DataSourceSurface> surface =
+      gfx::Factory::CreateWrappingDataSourceSurface(GetBuffer(), stride,
+                                                    rgb.size(), rgb.format());
+
+  if (!surface) {
+    gfxCriticalError() << "Failed to get serializer as surface!";
+    return false;
+  }
+
+  RefPtr<gfx::DataSourceSurface> srcSurf = aSurface->GetDataSurface();
+
+  if (!srcSurf) {
+    gfxCriticalError() << "Failed to GetDataSurface in UpdateFromSurface (BT).";
+    return false;
+  }
+
+  if (surface->GetSize() != srcSurf->GetSize() ||
+      surface->GetFormat() != srcSurf->GetFormat()) {
+    gfxCriticalError() << "Attempt to update texture client from a surface "
+                          "with a different size or format (BT)! This: "
+                       << surface->GetSize() << " " << surface->GetFormat()
+                       << " Other: " << aSurface->GetSize() << " "
+                       << aSurface->GetFormat();
+    return false;
+  }
+
+  gfx::DataSourceSurface::MappedSurface sourceMap;
+  gfx::DataSourceSurface::MappedSurface destMap;
+  if (!srcSurf->Map(gfx::DataSourceSurface::READ, &sourceMap)) {
+    gfxCriticalError()
+        << "Failed to map source surface for UpdateFromSurface (BT).";
+    return false;
+  }
+
+  if (!surface->Map(gfx::DataSourceSurface::WRITE, &destMap)) {
+    srcSurf->Unmap();
+    gfxCriticalError()
+        << "Failed to map destination surface for UpdateFromSurface.";
+    return false;
+  }
+
+  for (int y = 0; y < srcSurf->GetSize().height; y++) {
+    memcpy(destMap.mData + destMap.mStride * y,
+           sourceMap.mData + sourceMap.mStride * y,
+           srcSurf->GetSize().width * BytesPerPixel(srcSurf->GetFormat()));
+  }
+
+  srcSurf->Unmap();
+  surface->Unmap();
+
+  return true;
+}
+
+bool MemoryTextureData::Serialize(SurfaceDescriptor& aOutDescriptor) {
+  MOZ_ASSERT(GetFormat() != gfx::SurfaceFormat::UNKNOWN);
+  if (GetFormat() == gfx::SurfaceFormat::UNKNOWN) {
+    return false;
+  }
+
+  uintptr_t ptr = reinterpret_cast<uintptr_t>(mBuffer);
+  aOutDescriptor = SurfaceDescriptorBuffer(mDescriptor, MemoryOrShmem(ptr));
+
+  return true;
+}
+
+static bool InitBuffer(uint8_t* buf, size_t bufSize, gfx::SurfaceFormat aFormat,
+                       TextureAllocationFlags aAllocFlags, bool aAlreadyZero) {
+  if (!buf) {
+    gfxDebug() << "BufferTextureData: Failed to allocate " << bufSize
+               << " bytes";
+    return false;
+  }
+
+  if (aAllocFlags & ALLOC_CLEAR_BUFFER) {
+    if (aFormat == gfx::SurfaceFormat::B8G8R8X8) {
+      // Even though BGRX was requested, XRGB_UINT32 is what is meant,
+      // so use 0xFF000000 to put alpha in the right place.
+      libyuv::ARGBRect(buf, bufSize, 0, 0, bufSize / sizeof(uint32_t), 1,
+                       0xFF000000);
+    } else if (!aAlreadyZero) {
+      memset(buf, 0, bufSize);
+    }
+  }
+
+  return true;
+}
+
+MemoryTextureData* MemoryTextureData::Create(gfx::IntSize aSize,
+                                             gfx::SurfaceFormat aFormat,
+                                             gfx::BackendType aMoz2DBackend,
+                                             LayersBackend aLayersBackend,
+                                             TextureFlags aFlags,
+                                             TextureAllocationFlags aAllocFlags,
+                                             IShmemAllocator* aAllocator) {
+  // Should have used CreateForYCbCr.
+  MOZ_ASSERT(aFormat != gfx::SurfaceFormat::YUV);
+
+  if (aSize.width <= 0 || aSize.height <= 0) {
+    gfxDebug() << "Asking for buffer of invalid size " << aSize.width << "x"
+               << aSize.height;
+    return nullptr;
+  }
+
+  uint32_t bufSize = ImageDataSerializer::ComputeRGBBufferSize(aSize, aFormat);
+  if (!bufSize) {
+    return nullptr;
+  }
+
+  uint8_t* buf = new (fallible) uint8_t[bufSize];
+  if (!InitBuffer(buf, bufSize, aFormat, aAllocFlags, false)) {
+    return nullptr;
+  }
+
+  GfxMemoryImageReporter::DidAlloc(buf);
+
+  BufferDescriptor descriptor = RGBDescriptor(aSize, aFormat);
+
+  // Remote textures are not managed by a texture client, so we need to ensure
+  // that memory is freed when the owning MemoryTextureData goes away.
+  bool autoDeallocate = !!(aFlags & TextureFlags::REMOTE_TEXTURE);
+  return new MemoryTextureData(descriptor, aMoz2DBackend, buf, bufSize,
+                               autoDeallocate);
+}
+
+void MemoryTextureData::Deallocate(LayersIPCChannel*) {
+  MOZ_ASSERT(mBuffer);
+  GfxMemoryImageReporter::WillFree(mBuffer);
+  delete[] mBuffer;
+  mBuffer = nullptr;
+}
+
+TextureData* MemoryTextureData::CreateSimilar(
+    LayersIPCChannel* aAllocator, LayersBackend aLayersBackend,
+    TextureFlags aFlags, TextureAllocationFlags aAllocFlags) const {
+  return MemoryTextureData::Create(GetSize(), GetFormat(), mMoz2DBackend,
+                                   aLayersBackend, aFlags, aAllocFlags,
+                                   aAllocator);
+}
+
+bool ShmemTextureData::Serialize(SurfaceDescriptor& aOutDescriptor) {
+  MOZ_ASSERT(GetFormat() != gfx::SurfaceFormat::UNKNOWN);
+  if (GetFormat() == gfx::SurfaceFormat::UNKNOWN) {
+    return false;
+  }
+
+  aOutDescriptor =
+      SurfaceDescriptorBuffer(mDescriptor, MemoryOrShmem(std::move(mShmem)));
+
+  return true;
+}
+
+ShmemTextureData* ShmemTextureData::Create(gfx::IntSize aSize,
+                                           gfx::SurfaceFormat aFormat,
+                                           gfx::BackendType aMoz2DBackend,
+                                           LayersBackend aLayersBackend,
+                                           TextureFlags aFlags,
+                                           TextureAllocationFlags aAllocFlags,
+                                           IShmemAllocator* aAllocator) {
+  MOZ_ASSERT(aAllocator);
+  // Should have used CreateForYCbCr.
+  MOZ_ASSERT(aFormat != gfx::SurfaceFormat::YUV);
+
+  if (!aAllocator) {
+    return nullptr;
+  }
+
+  if (aSize.width <= 0 || aSize.height <= 0) {
+    gfxDebug() << "Asking for buffer of invalid size " << aSize.width << "x"
+               << aSize.height;
+    return nullptr;
+  }
+
+  uint32_t bufSize = ImageDataSerializer::ComputeRGBBufferSize(aSize, aFormat);
+  if (!bufSize) {
+    return nullptr;
+  }
+
+  mozilla::ipc::Shmem shm;
+  if (!aAllocator->AllocUnsafeShmem(bufSize, &shm)) {
+    return nullptr;
+  }
+
+  uint8_t* buf = shm.get<uint8_t>();
+  if (!InitBuffer(buf, bufSize, aFormat, aAllocFlags, true)) {
+    return nullptr;
+  }
+
+  BufferDescriptor descriptor = RGBDescriptor(aSize, aFormat);
+
+  return new ShmemTextureData(descriptor, aMoz2DBackend, shm);
+}
+
+TextureData* ShmemTextureData::CreateSimilar(
+    LayersIPCChannel* aAllocator, LayersBackend aLayersBackend,
+    TextureFlags aFlags, TextureAllocationFlags aAllocFlags) const {
+  return ShmemTextureData::Create(GetSize(), GetFormat(), mMoz2DBackend,
+                                  aLayersBackend, aFlags, aAllocFlags,
+                                  aAllocator);
+}
+
+void ShmemTextureData::Deallocate(LayersIPCChannel* aAllocator) {
+  aAllocator->DeallocShmem(mShmem);
+}
+
+}  // namespace layers
+}  // namespace mozilla