mirror of
https://github.com/mozilla/gecko-dev.git
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558 lines
17 KiB
C++
558 lines
17 KiB
C++
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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// * This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "BufferTexture.h"
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#include "mozilla/layers/ImageDataSerializer.h"
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#include "mozilla/layers/ISurfaceAllocator.h"
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#include "mozilla/layers/CompositableForwarder.h"
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#include "mozilla/gfx/Logging.h"
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#include "mozilla/gfx/2D.h"
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#include "mozilla/fallible.h"
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#include <algorithm>
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#ifdef MOZ_WIDGET_GTK
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#include "gfxPlatformGtk.h"
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#endif
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namespace mozilla {
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namespace layers {
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class MemoryTextureData : public BufferTextureData
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{
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public:
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static MemoryTextureData* Create(gfx::IntSize aSize, gfx::SurfaceFormat aFormat,
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gfx::BackendType aMoz2DBackend,TextureFlags aFlags,
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TextureAllocationFlags aAllocFlags,
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ClientIPCAllocator* aAllocator);
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virtual TextureData*
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CreateSimilar(ClientIPCAllocator* aAllocator,
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TextureFlags aFlags = TextureFlags::DEFAULT,
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TextureAllocationFlags aAllocFlags = ALLOC_DEFAULT) const override;
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virtual bool Serialize(SurfaceDescriptor& aOutDescriptor) override;
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virtual void Deallocate(ClientIPCAllocator*) override;
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MemoryTextureData(const BufferDescriptor& aDesc,
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gfx::BackendType aMoz2DBackend,
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uint8_t* aBuffer, size_t aBufferSize)
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: BufferTextureData(aDesc, aMoz2DBackend)
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, mBuffer(aBuffer)
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, mBufferSize(aBufferSize)
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{
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MOZ_ASSERT(aBuffer);
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MOZ_ASSERT(aBufferSize);
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}
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virtual uint8_t* GetBuffer() override { return mBuffer; }
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virtual size_t GetBufferSize() override { return mBufferSize; }
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protected:
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uint8_t* mBuffer;
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size_t mBufferSize;
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};
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class ShmemTextureData : public BufferTextureData
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{
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public:
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static ShmemTextureData* Create(gfx::IntSize aSize, gfx::SurfaceFormat aFormat,
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gfx::BackendType aMoz2DBackend, TextureFlags aFlags,
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TextureAllocationFlags aAllocFlags,
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ClientIPCAllocator* aAllocator);
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virtual TextureData*
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CreateSimilar(ClientIPCAllocator* aAllocator,
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TextureFlags aFlags = TextureFlags::DEFAULT,
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TextureAllocationFlags aAllocFlags = ALLOC_DEFAULT) const override;
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virtual bool Serialize(SurfaceDescriptor& aOutDescriptor) override;
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virtual void Deallocate(ClientIPCAllocator* aAllocator) override;
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ShmemTextureData(const BufferDescriptor& aDesc,
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gfx::BackendType aMoz2DBackend, mozilla::ipc::Shmem aShmem)
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: BufferTextureData(aDesc, aMoz2DBackend)
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, mShmem(aShmem)
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{
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MOZ_ASSERT(mShmem.Size<uint8_t>());
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}
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virtual uint8_t* GetBuffer() override { return mShmem.get<uint8_t>(); }
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virtual size_t GetBufferSize() override { return mShmem.Size<uint8_t>(); }
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protected:
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mozilla::ipc::Shmem mShmem;
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};
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static bool UsingX11Compositor()
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{
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#ifdef MOZ_WIDGET_GTK
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return gfxPlatformGtk::GetPlatform()->UseXRender();
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#endif
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return false;
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}
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static bool ComputeHasIntermediateBuffer(gfx::SurfaceFormat aFormat,
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LayersBackend aLayersBackend)
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{
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return aLayersBackend != LayersBackend::LAYERS_BASIC
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|| UsingX11Compositor()
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|| aFormat == gfx::SurfaceFormat::UNKNOWN
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|| aFormat == gfx::SurfaceFormat::YUV
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|| aFormat == gfx::SurfaceFormat::NV12;
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}
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BufferTextureData*
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BufferTextureData::Create(gfx::IntSize aSize, gfx::SurfaceFormat aFormat,
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gfx::BackendType aMoz2DBackend, TextureFlags aFlags,
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TextureAllocationFlags aAllocFlags,
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ClientIPCAllocator* aAllocator)
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{
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if (!aAllocator || aAllocator->IsSameProcess()) {
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return MemoryTextureData::Create(aSize, aFormat, aMoz2DBackend, aFlags,
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aAllocFlags, aAllocator);
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} else if (aAllocator->AsShmemAllocator()) {
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return ShmemTextureData::Create(aSize, aFormat, aMoz2DBackend, aFlags,
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aAllocFlags, aAllocator);
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}
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return nullptr;
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}
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BufferTextureData*
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BufferTextureData::CreateInternal(ClientIPCAllocator* aAllocator,
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const BufferDescriptor& aDesc,
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gfx::BackendType aMoz2DBackend,
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int32_t aBufferSize,
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TextureFlags aTextureFlags)
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{
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if (!aAllocator || aAllocator->IsSameProcess()) {
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uint8_t* buffer = new (fallible) uint8_t[aBufferSize];
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if (!buffer) {
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return nullptr;
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}
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GfxMemoryImageReporter::DidAlloc(buffer);
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return new MemoryTextureData(aDesc, aMoz2DBackend, buffer, aBufferSize);
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} else if (aAllocator->AsShmemAllocator()) {
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ipc::Shmem shm;
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if (!aAllocator->AsShmemAllocator()->AllocUnsafeShmem(aBufferSize, OptimalShmemType(), &shm)) {
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return nullptr;
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}
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return new ShmemTextureData(aDesc, aMoz2DBackend, shm);
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}
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return nullptr;
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}
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BufferTextureData*
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BufferTextureData::CreateForYCbCrWithBufferSize(ClientIPCAllocator* aAllocator,
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gfx::SurfaceFormat aFormat,
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int32_t aBufferSize,
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TextureFlags aTextureFlags)
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{
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if (aBufferSize == 0 || !gfx::Factory::CheckBufferSize(aBufferSize)) {
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return nullptr;
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}
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// Initialize the metadata with something, even if it will have to be rewritten
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// afterwards since we don't know the dimensions of the texture at this point.
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BufferDescriptor desc = YCbCrDescriptor(gfx::IntSize(), gfx::IntSize(),
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0, 0, 0, StereoMode::MONO);
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return CreateInternal(aAllocator, desc, gfx::BackendType::NONE, aBufferSize,
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aTextureFlags);
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}
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BufferTextureData*
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BufferTextureData::CreateForYCbCr(ClientIPCAllocator* aAllocator,
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gfx::IntSize aYSize,
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gfx::IntSize aCbCrSize,
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StereoMode aStereoMode,
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TextureFlags aTextureFlags)
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{
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uint32_t bufSize = ImageDataSerializer::ComputeYCbCrBufferSize(aYSize, aCbCrSize);
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if (bufSize == 0) {
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return nullptr;
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}
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uint32_t yOffset;
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uint32_t cbOffset;
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uint32_t crOffset;
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ImageDataSerializer::ComputeYCbCrOffsets(aYSize.width, aYSize.height,
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aCbCrSize.width, aCbCrSize.height,
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yOffset, cbOffset, crOffset);
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YCbCrDescriptor descriptor = YCbCrDescriptor(aYSize, aCbCrSize, yOffset, cbOffset,
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crOffset, aStereoMode);
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return CreateInternal(aAllocator, descriptor, gfx::BackendType::NONE, bufSize,
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aTextureFlags);
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}
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gfx::IntSize
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BufferTextureData::GetSize() const
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{
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return ImageDataSerializer::SizeFromBufferDescriptor(mDescriptor);
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}
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gfx::SurfaceFormat
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BufferTextureData::GetFormat() const
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{
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return ImageDataSerializer::FormatFromBufferDescriptor(mDescriptor);
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}
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bool
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BufferTextureData::HasIntermediateBuffer() const
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{
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if (mDescriptor.type() == BufferDescriptor::TYCbCrDescriptor) {
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return true;
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}
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return mDescriptor.get_RGBDescriptor().hasIntermediateBuffer();
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}
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bool
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BufferTextureData::SupportsMoz2D() const
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{
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switch (GetFormat()) {
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case gfx::SurfaceFormat::YUV:
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case gfx::SurfaceFormat::NV12:
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case gfx::SurfaceFormat::UNKNOWN:
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return false;
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default:
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return true;
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}
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}
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already_AddRefed<gfx::DrawTarget>
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BufferTextureData::BorrowDrawTarget()
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{
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if (mDrawTarget) {
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mDrawTarget->SetTransform(gfx::Matrix());
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RefPtr<gfx::DrawTarget> dt = mDrawTarget;
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return dt.forget();
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}
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if (mDescriptor.type() != BufferDescriptor::TRGBDescriptor) {
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return nullptr;
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}
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const RGBDescriptor& rgb = mDescriptor.get_RGBDescriptor();
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uint32_t stride = ImageDataSerializer::GetRGBStride(rgb);
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mDrawTarget = gfx::Factory::CreateDrawTargetForData(mMoz2DBackend,
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GetBuffer(), rgb.size(),
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stride, rgb.format(), true);
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if (mDrawTarget) {
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RefPtr<gfx::DrawTarget> dt = mDrawTarget;
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return dt.forget();
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}
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// TODO - should we warn? should we really fallback to cairo? perhaps
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// at least update mMoz2DBackend...
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if (mMoz2DBackend != gfx::BackendType::CAIRO) {
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mDrawTarget = gfx::Factory::CreateDrawTargetForData(gfx::BackendType::CAIRO,
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GetBuffer(), rgb.size(),
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stride, rgb.format(), true);
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}
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if (!mDrawTarget) {
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gfxCriticalNote << "BorrowDrawTarget failure, original backend " << (int)mMoz2DBackend;
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}
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RefPtr<gfx::DrawTarget> dt = mDrawTarget;
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return dt.forget();
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}
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bool
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BufferTextureData::BorrowMappedData(MappedTextureData& aData)
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{
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if (GetFormat() == gfx::SurfaceFormat::YUV) {
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return false;
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}
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gfx::IntSize size = GetSize();
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aData.data = GetBuffer();
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aData.size = size;
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aData.format = GetFormat();
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aData.stride = ImageDataSerializer::ComputeRGBStride(aData.format, size.width);
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return true;
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}
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bool
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BufferTextureData::BorrowMappedYCbCrData(MappedYCbCrTextureData& aMap)
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{
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if (mDescriptor.type() != BufferDescriptor::TYCbCrDescriptor) {
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return false;
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}
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const YCbCrDescriptor& desc = mDescriptor.get_YCbCrDescriptor();
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uint8_t* data = GetBuffer();
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auto ySize = desc.ySize();
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auto cbCrSize = desc.cbCrSize();
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aMap.stereoMode = desc.stereoMode();
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aMap.metadata = nullptr;
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aMap.y.data = data + desc.yOffset();
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aMap.y.size = ySize;
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aMap.y.stride = ySize.width;
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aMap.y.skip = 0;
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aMap.cb.data = data + desc.cbOffset();
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aMap.cb.size = cbCrSize;
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aMap.cb.stride = cbCrSize.width;
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aMap.cb.skip = 0;
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aMap.cr.data = data + desc.crOffset();
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aMap.cr.size = cbCrSize;
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aMap.cr.stride = cbCrSize.width;
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aMap.cr.skip = 0;
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return true;
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}
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bool
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BufferTextureData::UpdateFromSurface(gfx::SourceSurface* aSurface)
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{
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if (mDescriptor.type() != BufferDescriptor::TRGBDescriptor) {
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return false;
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}
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const RGBDescriptor& rgb = mDescriptor.get_RGBDescriptor();
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uint32_t stride = ImageDataSerializer::GetRGBStride(rgb);
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RefPtr<gfx::DataSourceSurface> surface =
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gfx::Factory::CreateWrappingDataSourceSurface(GetBuffer(), stride,
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rgb.size(), rgb.format());
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if (!surface) {
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gfxCriticalError() << "Failed to get serializer as surface!";
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return false;
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}
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RefPtr<gfx::DataSourceSurface> srcSurf = aSurface->GetDataSurface();
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if (!srcSurf) {
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gfxCriticalError() << "Failed to GetDataSurface in UpdateFromSurface (BT).";
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return false;
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}
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if (surface->GetSize() != srcSurf->GetSize() || surface->GetFormat() != srcSurf->GetFormat()) {
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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();
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return false;
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}
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gfx::DataSourceSurface::MappedSurface sourceMap;
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gfx::DataSourceSurface::MappedSurface destMap;
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if (!srcSurf->Map(gfx::DataSourceSurface::READ, &sourceMap)) {
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gfxCriticalError() << "Failed to map source surface for UpdateFromSurface (BT).";
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return false;
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}
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if (!surface->Map(gfx::DataSourceSurface::WRITE, &destMap)) {
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srcSurf->Unmap();
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gfxCriticalError() << "Failed to map destination surface for UpdateFromSurface.";
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return false;
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}
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for (int y = 0; y < srcSurf->GetSize().height; y++) {
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memcpy(destMap.mData + destMap.mStride * y,
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sourceMap.mData + sourceMap.mStride * y,
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srcSurf->GetSize().width * BytesPerPixel(srcSurf->GetFormat()));
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}
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srcSurf->Unmap();
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surface->Unmap();
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return true;
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}
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void
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BufferTextureData::SetDesciptor(const BufferDescriptor& aDescriptor)
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{
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MOZ_ASSERT(mDescriptor.type() == BufferDescriptor::TYCbCrDescriptor);
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MOZ_ASSERT(mDescriptor.get_YCbCrDescriptor().ySize() == gfx::IntSize());
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mDescriptor = aDescriptor;
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}
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bool
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MemoryTextureData::Serialize(SurfaceDescriptor& aOutDescriptor)
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{
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MOZ_ASSERT(GetFormat() != gfx::SurfaceFormat::UNKNOWN);
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if (GetFormat() == gfx::SurfaceFormat::UNKNOWN) {
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return false;
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}
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uintptr_t ptr = reinterpret_cast<uintptr_t>(mBuffer);
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aOutDescriptor = SurfaceDescriptorBuffer(mDescriptor, MemoryOrShmem(ptr));
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return true;
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}
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static bool InitBuffer(uint8_t* buf, size_t bufSize, gfx::SurfaceFormat aFormat, TextureAllocationFlags aAllocFlags)
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{
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if (!buf) {
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gfxDebug() << "BufferTextureData: Failed to allocate " << bufSize << " bytes";
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return false;
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}
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if ((aAllocFlags & ALLOC_CLEAR_BUFFER) ||
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(aAllocFlags & ALLOC_CLEAR_BUFFER_BLACK)) {
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if (aFormat == gfx::SurfaceFormat::B8G8R8X8) {
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// Even though BGRX was requested, XRGB_UINT32 is what is meant,
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// so use 0xFF000000 to put alpha in the right place.
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std::fill_n(reinterpret_cast<uint32_t*>(buf), bufSize / sizeof(uint32_t), 0xFF000000);
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} else {
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memset(buf, 0, bufSize);
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}
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}
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if (aAllocFlags & ALLOC_CLEAR_BUFFER_WHITE) {
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memset(buf, 0xFF, bufSize);
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}
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return true;
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}
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MemoryTextureData*
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MemoryTextureData::Create(gfx::IntSize aSize, gfx::SurfaceFormat aFormat,
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gfx::BackendType aMoz2DBackend, TextureFlags aFlags,
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TextureAllocationFlags aAllocFlags,
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ClientIPCAllocator* aAllocator)
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{
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// Should have used CreateForYCbCr.
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MOZ_ASSERT(aFormat != gfx::SurfaceFormat::YUV);
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if (aSize.width <= 0 || aSize.height <= 0) {
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gfxDebug() << "Asking for buffer of invalid size " << aSize.width << "x" << aSize.height;
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return nullptr;
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}
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uint32_t bufSize = ImageDataSerializer::ComputeRGBBufferSize(aSize, aFormat);
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if (!bufSize) {
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return nullptr;
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}
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uint8_t* buf = new (fallible) uint8_t[bufSize];
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if (!InitBuffer(buf, bufSize, aFormat, aAllocFlags)) {
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return nullptr;
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}
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auto fwd = aAllocator ? aAllocator->AsCompositableForwarder() : nullptr;
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bool hasIntermediateBuffer = fwd ? ComputeHasIntermediateBuffer(aFormat,
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fwd->GetCompositorBackendType())
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: true;
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GfxMemoryImageReporter::DidAlloc(buf);
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BufferDescriptor descriptor = RGBDescriptor(aSize, aFormat, hasIntermediateBuffer);
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return new MemoryTextureData(descriptor, aMoz2DBackend, buf, bufSize);
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}
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void
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MemoryTextureData::Deallocate(ClientIPCAllocator*)
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{
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MOZ_ASSERT(mBuffer);
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GfxMemoryImageReporter::WillFree(mBuffer);
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delete [] mBuffer;
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mBuffer = nullptr;
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}
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TextureData*
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MemoryTextureData::CreateSimilar(ClientIPCAllocator* aAllocator,
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TextureFlags aFlags,
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TextureAllocationFlags aAllocFlags) const
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{
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return MemoryTextureData::Create(GetSize(), GetFormat(), mMoz2DBackend,
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aFlags, aAllocFlags, aAllocator);
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}
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bool
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ShmemTextureData::Serialize(SurfaceDescriptor& aOutDescriptor)
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{
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MOZ_ASSERT(GetFormat() != gfx::SurfaceFormat::UNKNOWN);
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if (GetFormat() == gfx::SurfaceFormat::UNKNOWN) {
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return false;
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}
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aOutDescriptor = SurfaceDescriptorBuffer(mDescriptor, MemoryOrShmem(mShmem));
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return true;
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}
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ShmemTextureData*
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ShmemTextureData::Create(gfx::IntSize aSize, gfx::SurfaceFormat aFormat,
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gfx::BackendType aMoz2DBackend, TextureFlags aFlags,
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TextureAllocationFlags aAllocFlags,
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ClientIPCAllocator* aAllocator)
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{
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MOZ_ASSERT(aAllocator);
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// Should have used CreateForYCbCr.
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MOZ_ASSERT(aFormat != gfx::SurfaceFormat::YUV);
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if (!aAllocator || !aAllocator->AsShmemAllocator()) {
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return nullptr;
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}
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if (aSize.width <= 0 || aSize.height <= 0) {
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gfxDebug() << "Asking for buffer of invalid size " << aSize.width << "x" << aSize.height;
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return nullptr;
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}
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uint32_t bufSize = ImageDataSerializer::ComputeRGBBufferSize(aSize, aFormat);
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if (!bufSize) {
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return nullptr;
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}
|
|
|
|
mozilla::ipc::Shmem shm;
|
|
if (!aAllocator->AsShmemAllocator()->AllocUnsafeShmem(bufSize, OptimalShmemType(), &shm)) {
|
|
return nullptr;
|
|
}
|
|
|
|
uint8_t* buf = shm.get<uint8_t>();
|
|
if (!InitBuffer(buf, bufSize, aFormat, aAllocFlags)) {
|
|
return nullptr;
|
|
}
|
|
|
|
auto fwd = aAllocator->AsCompositableForwarder();
|
|
bool hasIntermediateBuffer = fwd ? ComputeHasIntermediateBuffer(aFormat,
|
|
fwd->GetCompositorBackendType())
|
|
: true;
|
|
|
|
BufferDescriptor descriptor = RGBDescriptor(aSize, aFormat, hasIntermediateBuffer);
|
|
|
|
return new ShmemTextureData(descriptor, aMoz2DBackend, shm);
|
|
|
|
return nullptr;
|
|
}
|
|
|
|
TextureData*
|
|
ShmemTextureData::CreateSimilar(ClientIPCAllocator* aAllocator,
|
|
TextureFlags aFlags,
|
|
TextureAllocationFlags aAllocFlags) const
|
|
{
|
|
return ShmemTextureData::Create(GetSize(), GetFormat(), mMoz2DBackend,
|
|
aFlags, aAllocFlags, aAllocator);
|
|
}
|
|
|
|
void
|
|
ShmemTextureData::Deallocate(ClientIPCAllocator* aAllocator)
|
|
{
|
|
aAllocator->AsShmemAllocator()->DeallocShmem(mShmem);
|
|
}
|
|
|
|
} // namespace
|
|
} // namespace
|