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/* -*- 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
#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; }
TextureType GetTextureType() const override { return TextureType::Unknown; }
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::YUV420:
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::YUV420) {
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::YUV420);
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::YUV420);
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