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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 "TextureHost.h"
#include "CompositableHost.h" // for CompositableHost
#include "mozilla/gfx/2D.h" // for DataSourceSurface, Factory
#include "mozilla/gfx/CanvasManagerParent.h"
#include "mozilla/gfx/gfxVars.h"
#include "mozilla/ipc/Shmem.h" // for Shmem
#include "mozilla/layers/AsyncImagePipelineManager.h"
#include "mozilla/layers/BufferTexture.h"
#include "mozilla/layers/CompositableTransactionParent.h" // for CompositableParentManager
#include "mozilla/layers/CompositorBridgeParent.h"
#include "mozilla/layers/Compositor.h" // for Compositor
#include "mozilla/layers/ISurfaceAllocator.h" // for ISurfaceAllocator
#include "mozilla/layers/ImageBridgeParent.h" // for ImageBridgeParent
#include "mozilla/layers/LayersSurfaces.h" // for SurfaceDescriptor, etc
#include "mozilla/layers/RemoteTextureMap.h"
#include "mozilla/layers/TextureHostOGL.h" // for TextureHostOGL
#include "mozilla/layers/ImageDataSerializer.h"
#include "mozilla/layers/TextureClient.h"
#include "mozilla/layers/GPUVideoTextureHost.h"
#include "mozilla/layers/WebRenderTextureHost.h"
#include "mozilla/StaticPrefs_layers.h"
#include "mozilla/StaticPrefs_gfx.h"
#include "mozilla/webrender/RenderBufferTextureHost.h"
#include "mozilla/webrender/RenderExternalTextureHost.h"
#include "mozilla/webrender/RenderThread.h"
#include "mozilla/webrender/WebRenderAPI.h"
#include "nsAString.h"
#include "mozilla/RefPtr.h" // for nsRefPtr
#include "nsPrintfCString.h" // for nsPrintfCString
#include "mozilla/layers/PTextureParent.h"
#include "mozilla/Unused.h"
#include <limits>
#include "../opengl/CompositorOGL.h"
#include "gfxUtils.h"
#include "IPDLActor.h"
#ifdef XP_MACOSX
# include "../opengl/MacIOSurfaceTextureHostOGL.h"
#endif
#ifdef XP_WIN
# include "../d3d11/CompositorD3D11.h"
# include "mozilla/layers/TextureD3D11.h"
# ifdef MOZ_WMF_MEDIA_ENGINE
# include "mozilla/layers/DcompSurfaceImage.h"
# endif
#endif
#if 0
# define RECYCLE_LOG(...) printf_stderr(__VA_ARGS__)
#else
# define RECYCLE_LOG(...) \
do { \
} while (0)
#endif
namespace mozilla {
namespace layers {
/**
* TextureParent is the host-side IPDL glue between TextureClient and
* TextureHost. It is an IPDL actor just like LayerParent, CompositableParent,
* etc.
*/
class TextureParent : public ParentActor<PTextureParent> {
public:
TextureParent(HostIPCAllocator* aAllocator,
const dom::ContentParentId& aContentId, uint64_t aSerial,
const wr::MaybeExternalImageId& aExternalImageId);
virtual ~TextureParent();
bool Init(const SurfaceDescriptor& aSharedData,
ReadLockDescriptor&& aReadLock, const LayersBackend& aLayersBackend,
const TextureFlags& aFlags);
void NotifyNotUsed(uint64_t aTransactionId);
mozilla::ipc::IPCResult RecvRecycleTexture(
const TextureFlags& aTextureFlags) final;
TextureHost* GetTextureHost() { return mTextureHost; }
void Destroy() override;
const dom::ContentParentId& GetContentId() const { return mContentId; }
uint64_t GetSerial() const { return mSerial; }
HostIPCAllocator* mSurfaceAllocator;
RefPtr<TextureHost> mTextureHost;
dom::ContentParentId mContentId;
// mSerial is unique in TextureClient's process.
const uint64_t mSerial;
wr::MaybeExternalImageId mExternalImageId;
};
static bool WrapWithWebRenderTextureHost(ISurfaceAllocator* aDeallocator,
LayersBackend aBackend,
TextureFlags aFlags) {
if (!aDeallocator) {
return false;
}
if ((aFlags & TextureFlags::SNAPSHOT) ||
(!aDeallocator->UsesImageBridge() &&
!aDeallocator->AsCompositorBridgeParentBase())) {
return false;
}
return true;
}
////////////////////////////////////////////////////////////////////////////////
PTextureParent* TextureHost::CreateIPDLActor(
HostIPCAllocator* aAllocator, const SurfaceDescriptor& aSharedData,
ReadLockDescriptor&& aReadLock, LayersBackend aLayersBackend,
TextureFlags aFlags, const dom::ContentParentId& aContentId,
uint64_t aSerial, const wr::MaybeExternalImageId& aExternalImageId) {
TextureParent* actor =
new TextureParent(aAllocator, aContentId, aSerial, aExternalImageId);
if (!actor->Init(aSharedData, std::move(aReadLock), aLayersBackend, aFlags)) {
actor->ActorDestroy(ipc::IProtocol::ActorDestroyReason::FailedConstructor);
delete actor;
return nullptr;
}
return actor;
}
// static
bool TextureHost::DestroyIPDLActor(PTextureParent* actor) {
delete actor;
return true;
}
// static
bool TextureHost::SendDeleteIPDLActor(PTextureParent* actor) {
return PTextureParent::Send__delete__(actor);
}
// static
TextureHost* TextureHost::AsTextureHost(PTextureParent* actor) {
if (!actor) {
return nullptr;
}
return static_cast<TextureParent*>(actor)->mTextureHost;
}
// static
uint64_t TextureHost::GetTextureSerial(PTextureParent* actor) {
if (!actor) {
return UINT64_MAX;
}
return static_cast<TextureParent*>(actor)->mSerial;
}
// static
dom::ContentParentId TextureHost::GetTextureContentId(PTextureParent* actor) {
if (!actor) {
return dom::ContentParentId();
}
return static_cast<TextureParent*>(actor)->mContentId;
}
PTextureParent* TextureHost::GetIPDLActor() { return mActor; }
void TextureHost::SetLastFwdTransactionId(uint64_t aTransactionId) {
MOZ_ASSERT(mFwdTransactionId <= aTransactionId);
mFwdTransactionId = aTransactionId;
}
already_AddRefed<TextureHost> CreateDummyBufferTextureHost(
mozilla::layers::LayersBackend aBackend,
mozilla::layers::TextureFlags aFlags) {
// Ensure that the host will delete the memory.
aFlags &= ~TextureFlags::DEALLOCATE_CLIENT;
aFlags |= TextureFlags::DUMMY_TEXTURE;
UniquePtr<TextureData> textureData(BufferTextureData::Create(
gfx::IntSize(1, 1), gfx::SurfaceFormat::B8G8R8A8, gfx::BackendType::SKIA,
aBackend, aFlags, TextureAllocationFlags::ALLOC_DEFAULT, nullptr));
SurfaceDescriptor surfDesc;
textureData->Serialize(surfDesc);
const SurfaceDescriptorBuffer& bufferDesc =
surfDesc.get_SurfaceDescriptorBuffer();
const MemoryOrShmem& data = bufferDesc.data();
RefPtr<TextureHost> host =
new MemoryTextureHost(reinterpret_cast<uint8_t*>(data.get_uintptr_t()),
bufferDesc.desc(), aFlags);
return host.forget();
}
already_AddRefed<TextureHost> TextureHost::Create(
const SurfaceDescriptor& aDesc, ReadLockDescriptor&& aReadLock,
HostIPCAllocator* aDeallocator, LayersBackend aBackend, TextureFlags aFlags,
wr::MaybeExternalImageId& aExternalImageId) {
RefPtr<TextureHost> result;
switch (aDesc.type()) {
case SurfaceDescriptor::TSurfaceDescriptorBuffer:
case SurfaceDescriptor::TSurfaceDescriptorGPUVideo:
result = CreateBackendIndependentTextureHost(aDesc, aDeallocator,
aBackend, aFlags);
break;
case SurfaceDescriptor::TEGLImageDescriptor:
case SurfaceDescriptor::TSurfaceTextureDescriptor:
case SurfaceDescriptor::TSurfaceDescriptorAndroidHardwareBuffer:
case SurfaceDescriptor::TSurfaceDescriptorSharedGLTexture:
case SurfaceDescriptor::TSurfaceDescriptorDMABuf:
result = CreateTextureHostOGL(aDesc, aDeallocator, aBackend, aFlags);
break;
case SurfaceDescriptor::TSurfaceDescriptorMacIOSurface:
result = CreateTextureHostOGL(aDesc, aDeallocator, aBackend, aFlags);
break;
#ifdef XP_WIN
case SurfaceDescriptor::TSurfaceDescriptorD3D10:
case SurfaceDescriptor::TSurfaceDescriptorDXGIYCbCr:
result = CreateTextureHostD3D11(aDesc, aDeallocator, aBackend, aFlags);
break;
# ifdef MOZ_WMF_MEDIA_ENGINE
case SurfaceDescriptor::TSurfaceDescriptorDcompSurface:
result =
CreateTextureHostDcompSurface(aDesc, aDeallocator, aBackend, aFlags);
break;
# endif
#endif
default:
MOZ_CRASH("GFX: Unsupported Surface type host");
}
if (!result) {
gfxCriticalNote << "TextureHost creation failure type=" << aDesc.type();
}
if (result && WrapWithWebRenderTextureHost(aDeallocator, aBackend, aFlags)) {
MOZ_ASSERT(aExternalImageId.isSome());
result = new WebRenderTextureHost(aFlags, result, aExternalImageId.ref());
}
if (result) {
result->DeserializeReadLock(std::move(aReadLock), aDeallocator);
}
return result.forget();
}
already_AddRefed<TextureHost> CreateBackendIndependentTextureHost(
const SurfaceDescriptor& aDesc, ISurfaceAllocator* aDeallocator,
LayersBackend aBackend, TextureFlags aFlags) {
RefPtr<TextureHost> result;
switch (aDesc.type()) {
case SurfaceDescriptor::TSurfaceDescriptorBuffer: {
const SurfaceDescriptorBuffer& bufferDesc =
aDesc.get_SurfaceDescriptorBuffer();
const MemoryOrShmem& data = bufferDesc.data();
switch (data.type()) {
case MemoryOrShmem::TShmem: {
const ipc::Shmem& shmem = data.get_Shmem();
const BufferDescriptor& desc = bufferDesc.desc();
if (!shmem.IsReadable()) {
// We failed to map the shmem so we can't verify its size. This
// should not be a fatal error, so just create the texture with
// nothing backing it.
result = new ShmemTextureHost(shmem, desc, aDeallocator, aFlags);
break;
}
size_t bufSize = shmem.Size<char>();
size_t reqSize = SIZE_MAX;
switch (desc.type()) {
case BufferDescriptor::TYCbCrDescriptor: {
const YCbCrDescriptor& ycbcr = desc.get_YCbCrDescriptor();
reqSize = ImageDataSerializer::ComputeYCbCrBufferSize(
ycbcr.ySize(), ycbcr.yStride(), ycbcr.cbCrSize(),
ycbcr.cbCrStride(), ycbcr.yOffset(), ycbcr.cbOffset(),
ycbcr.crOffset());
break;
}
case BufferDescriptor::TRGBDescriptor: {
const RGBDescriptor& rgb = desc.get_RGBDescriptor();
reqSize = ImageDataSerializer::ComputeRGBBufferSize(rgb.size(),
rgb.format());
break;
}
default:
gfxCriticalError()
<< "Bad buffer host descriptor " << (int)desc.type();
MOZ_CRASH("GFX: Bad descriptor");
}
if (reqSize == 0 || bufSize < reqSize) {
NS_ERROR(
"A client process gave a shmem too small to fit for its "
"descriptor!");
return nullptr;
}
result = new ShmemTextureHost(shmem, desc, aDeallocator, aFlags);
break;
}
case MemoryOrShmem::Tuintptr_t: {
if (aDeallocator && !aDeallocator->IsSameProcess()) {
NS_ERROR(
"A client process is trying to peek at our address space using "
"a MemoryTexture!");
return nullptr;
}
result = new MemoryTextureHost(
reinterpret_cast<uint8_t*>(data.get_uintptr_t()),
bufferDesc.desc(), aFlags);
break;
}
default:
gfxCriticalError()
<< "Failed texture host for backend " << (int)data.type();
MOZ_CRASH("GFX: No texture host for backend");
}
break;
}
case SurfaceDescriptor::TSurfaceDescriptorGPUVideo: {
MOZ_ASSERT(aDesc.get_SurfaceDescriptorGPUVideo().type() ==
SurfaceDescriptorGPUVideo::TSurfaceDescriptorRemoteDecoder);
result = GPUVideoTextureHost::CreateFromDescriptor(
aDeallocator->GetContentId(), aFlags,
aDesc.get_SurfaceDescriptorGPUVideo());
break;
}
default: {
NS_WARNING("No backend independent TextureHost for this descriptor type");
}
}
return result.forget();
}
TextureHost::TextureHost(TextureHostType aType, TextureFlags aFlags)
: AtomicRefCountedWithFinalize("TextureHost"),
mTextureHostType(aType),
mActor(nullptr),
mFlags(aFlags),
mCompositableCount(0),
mFwdTransactionId(0),
mReadLocked(false) {}
TextureHost::~TextureHost() {
MOZ_ASSERT(mExternalImageId.isNothing());
if (mReadLocked) {
// If we still have a ReadLock, unlock it. At this point we don't care about
// the texture client being written into on the other side since it should
// be destroyed by now. But we will hit assertions if we don't ReadUnlock
// before destroying the lock itself.
ReadUnlock();
}
if (mDestroyedCallback) {
mDestroyedCallback();
}
}
void TextureHost::Finalize() {
MaybeDestroyRenderTexture();
if (!(GetFlags() & TextureFlags::DEALLOCATE_CLIENT)) {
DeallocateSharedData();
DeallocateDeviceData();
}
}
void TextureHost::UnbindTextureSource() {
if (mReadLocked) {
ReadUnlock();
}
}
void TextureHost::RecycleTexture(TextureFlags aFlags) {
MOZ_ASSERT(GetFlags() & TextureFlags::RECYCLE);
MOZ_ASSERT(aFlags & TextureFlags::RECYCLE);
mFlags = aFlags;
}
void TextureHost::PrepareForUse() {}
void TextureHost::NotifyNotUsed() {
if (!mActor) {
if ((mFlags & TextureFlags::REMOTE_TEXTURE) && AsSurfaceTextureHost()) {
MOZ_ASSERT(mExternalImageId.isSome());
wr::RenderThread::Get()->NotifyNotUsed(*mExternalImageId);
}
return;
}
// Do not need to call NotifyNotUsed() if TextureHost does not have
// TextureFlags::RECYCLE flag nor TextureFlags::WAIT_HOST_USAGE_END flag.
if (!(GetFlags() & TextureFlags::RECYCLE) &&
!(GetFlags() & TextureFlags::WAIT_HOST_USAGE_END)) {
return;
}
static_cast<TextureParent*>(mActor)->NotifyNotUsed(mFwdTransactionId);
}
void TextureHost::CallNotifyNotUsed() {
if (!mActor) {
return;
}
static_cast<TextureParent*>(mActor)->NotifyNotUsed(mFwdTransactionId);
}
void TextureHost::MaybeDestroyRenderTexture() {
if (mExternalImageId.isNothing()) {
// RenderTextureHost was not created
return;
}
// When TextureHost created RenderTextureHost, delete it here.
TextureHost::DestroyRenderTexture(mExternalImageId.ref());
mExternalImageId = Nothing();
}
void TextureHost::DestroyRenderTexture(
const wr::ExternalImageId& aExternalImageId) {
wr::RenderThread::Get()->UnregisterExternalImage(aExternalImageId);
}
void TextureHost::EnsureRenderTexture(
const wr::MaybeExternalImageId& aExternalImageId) {
if (aExternalImageId.isNothing()) {
// TextureHost is wrapped by GPUVideoTextureHost.
if (mExternalImageId.isSome()) {
// RenderTextureHost was already created.
return;
}
mExternalImageId =
Some(AsyncImagePipelineManager::GetNextExternalImageId());
} else {
// TextureHost is wrapped by WebRenderTextureHost.
if (aExternalImageId == mExternalImageId) {
// The texture has already been created.
return;
}
MOZ_ASSERT(mExternalImageId.isNothing());
mExternalImageId = aExternalImageId;
}
CreateRenderTexture(mExternalImageId.ref());
}
TextureSource::TextureSource() : mCompositableCount(0) {}
TextureSource::~TextureSource() = default;
BufferTextureHost::BufferTextureHost(const BufferDescriptor& aDesc,
TextureFlags aFlags)
: TextureHost(TextureHostType::Buffer, aFlags), mLocked(false) {
mDescriptor = aDesc;
switch (mDescriptor.type()) {
case BufferDescriptor::TYCbCrDescriptor: {
const YCbCrDescriptor& ycbcr = mDescriptor.get_YCbCrDescriptor();
mSize = ycbcr.display().Size();
mFormat = gfx::SurfaceFormat::YUV;
break;
}
case BufferDescriptor::TRGBDescriptor: {
const RGBDescriptor& rgb = mDescriptor.get_RGBDescriptor();
mSize = rgb.size();
mFormat = rgb.format();
break;
}
default:
gfxCriticalError() << "Bad buffer host descriptor "
<< (int)mDescriptor.type();
MOZ_CRASH("GFX: Bad descriptor");
}
#ifdef XP_MACOSX
const int kMinSize = 1024;
const int kMaxSize = 4096;
mUseExternalTextures =
kMaxSize >= mSize.width && mSize.width >= kMinSize &&
kMaxSize >= mSize.height && mSize.height >= kMinSize &&
StaticPrefs::gfx_webrender_enable_client_storage_AtStartup();
#else
mUseExternalTextures = false;
#endif
}
BufferTextureHost::~BufferTextureHost() = default;
void BufferTextureHost::DeallocateDeviceData() {}
void BufferTextureHost::CreateRenderTexture(
const wr::ExternalImageId& aExternalImageId) {
MOZ_ASSERT(mExternalImageId.isSome());
RefPtr<wr::RenderTextureHost> texture;
if (UseExternalTextures()) {
texture =
new wr::RenderExternalTextureHost(GetBuffer(), GetBufferDescriptor());
} else {
texture =
new wr::RenderBufferTextureHost(GetBuffer(), GetBufferDescriptor());
}
wr::RenderThread::Get()->RegisterExternalImage(aExternalImageId,
texture.forget());
}
uint32_t BufferTextureHost::NumSubTextures() {
if (GetFormat() == gfx::SurfaceFormat::YUV) {
return 3;
}
return 1;
}
void BufferTextureHost::PushResourceUpdates(
wr::TransactionBuilder& aResources, ResourceUpdateOp aOp,
const Range<wr::ImageKey>& aImageKeys, const wr::ExternalImageId& aExtID) {
auto method = aOp == TextureHost::ADD_IMAGE
? &wr::TransactionBuilder::AddExternalImage
: &wr::TransactionBuilder::UpdateExternalImage;
// Use native textures if our backend requires it, or if our backend doesn't
// forbid it and we want to use them.
NativeTexturePolicy policy =
BackendNativeTexturePolicy(aResources.GetBackendType(), GetSize());
bool useNativeTexture =
(policy == REQUIRE) || (policy != FORBID && UseExternalTextures());
auto imageType = useNativeTexture ? wr::ExternalImageType::TextureHandle(
wr::ImageBufferKind::TextureRect)
: wr::ExternalImageType::Buffer();
if (GetFormat() != gfx::SurfaceFormat::YUV) {
MOZ_ASSERT(aImageKeys.length() == 1);
wr::ImageDescriptor descriptor(
GetSize(),
ImageDataSerializer::ComputeRGBStride(GetFormat(), GetSize().width),
GetFormat());
(aResources.*method)(aImageKeys[0], descriptor, aExtID, imageType, 0);
} else {
MOZ_ASSERT(aImageKeys.length() == 3);
const layers::YCbCrDescriptor& desc = mDescriptor.get_YCbCrDescriptor();
gfx::IntSize ySize = desc.display().Size();
gfx::IntSize cbcrSize = ImageDataSerializer::GetCroppedCbCrSize(desc);
wr::ImageDescriptor yDescriptor(
ySize, desc.yStride(), SurfaceFormatForColorDepth(desc.colorDepth()));
wr::ImageDescriptor cbcrDescriptor(
cbcrSize, desc.cbCrStride(),
SurfaceFormatForColorDepth(desc.colorDepth()));
(aResources.*method)(aImageKeys[0], yDescriptor, aExtID, imageType, 0);
(aResources.*method)(aImageKeys[1], cbcrDescriptor, aExtID, imageType, 1);
(aResources.*method)(aImageKeys[2], cbcrDescriptor, aExtID, imageType, 2);
}
}
void BufferTextureHost::PushDisplayItems(wr::DisplayListBuilder& aBuilder,
const wr::LayoutRect& aBounds,
const wr::LayoutRect& aClip,
wr::ImageRendering aFilter,
const Range<wr::ImageKey>& aImageKeys,
PushDisplayItemFlagSet aFlags) {
// SWGL should always try to bypass shaders and composite directly.
bool preferCompositorSurface =
aFlags.contains(PushDisplayItemFlag::PREFER_COMPOSITOR_SURFACE);
bool useExternalSurface =
aFlags.contains(PushDisplayItemFlag::SUPPORTS_EXTERNAL_BUFFER_TEXTURES);
if (GetFormat() != gfx::SurfaceFormat::YUV) {
MOZ_ASSERT(aImageKeys.length() == 1);
aBuilder.PushImage(aBounds, aClip, true, false, aFilter, aImageKeys[0],
!(mFlags & TextureFlags::NON_PREMULTIPLIED),
wr::ColorF{1.0f, 1.0f, 1.0f, 1.0f},
preferCompositorSurface, useExternalSurface);
} else {
MOZ_ASSERT(aImageKeys.length() == 3);
const YCbCrDescriptor& desc = mDescriptor.get_YCbCrDescriptor();
aBuilder.PushYCbCrPlanarImage(
aBounds, aClip, true, aImageKeys[0], aImageKeys[1], aImageKeys[2],
wr::ToWrColorDepth(desc.colorDepth()),
wr::ToWrYuvColorSpace(desc.yUVColorSpace()),
wr::ToWrColorRange(desc.colorRange()), aFilter, preferCompositorSurface,
useExternalSurface);
}
}
void TextureHost::DeserializeReadLock(ReadLockDescriptor&& aDesc,
ISurfaceAllocator* aAllocator) {
if (mReadLock) {
return;
}
mReadLock = TextureReadLock::Deserialize(std::move(aDesc), aAllocator);
}
void TextureHost::SetReadLocked() {
if (!mReadLock) {
return;
}
// If mReadLocked is true it means we haven't read unlocked yet and the
// content side should not have been able to write into this texture and read
// lock again!
MOZ_ASSERT(!mReadLocked);
mReadLocked = true;
}
void TextureHost::ReadUnlock() {
if (mReadLock && mReadLocked) {
mReadLock->ReadUnlock();
mReadLocked = false;
}
}
bool TextureHost::NeedsYFlip() const {
return bool(mFlags & TextureFlags::ORIGIN_BOTTOM_LEFT);
}
void BufferTextureHost::UnbindTextureSource() {
// This texture is not used by any layer anymore.
// If the texture has an intermediate buffer we don't care either because
// texture uploads are also performed synchronously for BufferTextureHost.
ReadUnlock();
}
gfx::SurfaceFormat BufferTextureHost::GetFormat() const { return mFormat; }
gfx::YUVColorSpace BufferTextureHost::GetYUVColorSpace() const {
if (mFormat == gfx::SurfaceFormat::YUV) {
const YCbCrDescriptor& desc = mDescriptor.get_YCbCrDescriptor();
return desc.yUVColorSpace();
}
return gfx::YUVColorSpace::Identity;
}
gfx::ColorDepth BufferTextureHost::GetColorDepth() const {
if (mFormat == gfx::SurfaceFormat::YUV) {
const YCbCrDescriptor& desc = mDescriptor.get_YCbCrDescriptor();
return desc.colorDepth();
}
return gfx::ColorDepth::COLOR_8;
}
gfx::ColorRange BufferTextureHost::GetColorRange() const {
if (mFormat == gfx::SurfaceFormat::YUV) {
const YCbCrDescriptor& desc = mDescriptor.get_YCbCrDescriptor();
return desc.colorRange();
}
return TextureHost::GetColorRange();
}
gfx::ChromaSubsampling BufferTextureHost::GetChromaSubsampling() const {
if (mFormat == gfx::SurfaceFormat::YUV) {
const YCbCrDescriptor& desc = mDescriptor.get_YCbCrDescriptor();
return desc.chromaSubsampling();
}
return gfx::ChromaSubsampling::FULL;
}
uint8_t* BufferTextureHost::GetYChannel() {
if (mFormat == gfx::SurfaceFormat::YUV) {
const YCbCrDescriptor& desc = mDescriptor.get_YCbCrDescriptor();
return ImageDataSerializer::GetYChannel(GetBuffer(), desc);
}
return nullptr;
}
uint8_t* BufferTextureHost::GetCbChannel() {
if (mFormat == gfx::SurfaceFormat::YUV) {
const YCbCrDescriptor& desc = mDescriptor.get_YCbCrDescriptor();
return ImageDataSerializer::GetCbChannel(GetBuffer(), desc);
}
return nullptr;
}
uint8_t* BufferTextureHost::GetCrChannel() {
if (mFormat == gfx::SurfaceFormat::YUV) {
const YCbCrDescriptor& desc = mDescriptor.get_YCbCrDescriptor();
return ImageDataSerializer::GetCrChannel(GetBuffer(), desc);
}
return nullptr;
}
int32_t BufferTextureHost::GetYStride() const {
if (mFormat == gfx::SurfaceFormat::YUV) {
const YCbCrDescriptor& desc = mDescriptor.get_YCbCrDescriptor();
return desc.yStride();
}
return 0;
}
int32_t BufferTextureHost::GetCbCrStride() const {
if (mFormat == gfx::SurfaceFormat::YUV) {
const YCbCrDescriptor& desc = mDescriptor.get_YCbCrDescriptor();
return desc.cbCrStride();
}
return 0;
}
already_AddRefed<gfx::DataSourceSurface> BufferTextureHost::GetAsSurface() {
RefPtr<gfx::DataSourceSurface> result;
if (mFormat == gfx::SurfaceFormat::UNKNOWN) {
NS_WARNING("BufferTextureHost: unsupported format!");
return nullptr;
} else if (mFormat == gfx::SurfaceFormat::YUV) {
result = ImageDataSerializer::DataSourceSurfaceFromYCbCrDescriptor(
GetBuffer(), mDescriptor.get_YCbCrDescriptor());
if (NS_WARN_IF(!result)) {
return nullptr;
}
} else {
result = gfx::Factory::CreateWrappingDataSourceSurface(
GetBuffer(),
ImageDataSerializer::GetRGBStride(mDescriptor.get_RGBDescriptor()),
mSize, mFormat);
}
return result.forget();
}
ShmemTextureHost::ShmemTextureHost(const ipc::Shmem& aShmem,
const BufferDescriptor& aDesc,
ISurfaceAllocator* aDeallocator,
TextureFlags aFlags)
: BufferTextureHost(aDesc, aFlags), mDeallocator(aDeallocator) {
if (aShmem.IsReadable()) {
mShmem = MakeUnique<ipc::Shmem>(aShmem);
} else {
// This can happen if we failed to map the shmem on this process, perhaps
// because it was big and we didn't have enough contiguous address space
// available, even though we did on the child process.
// As a result this texture will be in an invalid state and Lock will
// always fail.
gfxCriticalNote << "Failed to create a valid ShmemTextureHost";
}
MOZ_COUNT_CTOR(ShmemTextureHost);
}
ShmemTextureHost::~ShmemTextureHost() {
MOZ_ASSERT(!mShmem || (mFlags & TextureFlags::DEALLOCATE_CLIENT),
"Leaking our buffer");
DeallocateDeviceData();
MOZ_COUNT_DTOR(ShmemTextureHost);
}
void ShmemTextureHost::DeallocateSharedData() {
if (mShmem) {
MOZ_ASSERT(mDeallocator,
"Shared memory would leak without a ISurfaceAllocator");
mDeallocator->AsShmemAllocator()->DeallocShmem(*mShmem);
mShmem = nullptr;
}
}
void ShmemTextureHost::ForgetSharedData() {
if (mShmem) {
mShmem = nullptr;
}
}
void ShmemTextureHost::OnShutdown() { mShmem = nullptr; }
uint8_t* ShmemTextureHost::GetBuffer() {
return mShmem ? mShmem->get<uint8_t>() : nullptr;
}
size_t ShmemTextureHost::GetBufferSize() {
return mShmem ? mShmem->Size<uint8_t>() : 0;
}
MemoryTextureHost::MemoryTextureHost(uint8_t* aBuffer,
const BufferDescriptor& aDesc,
TextureFlags aFlags)
: BufferTextureHost(aDesc, aFlags), mBuffer(aBuffer) {
MOZ_COUNT_CTOR(MemoryTextureHost);
}
MemoryTextureHost::~MemoryTextureHost() {
MOZ_ASSERT(!mBuffer || (mFlags & TextureFlags::DEALLOCATE_CLIENT),
"Leaking our buffer");
DeallocateDeviceData();
MOZ_COUNT_DTOR(MemoryTextureHost);
}
void MemoryTextureHost::DeallocateSharedData() {
if (mBuffer) {
GfxMemoryImageReporter::WillFree(mBuffer);
}
delete[] mBuffer;
mBuffer = nullptr;
}
void MemoryTextureHost::ForgetSharedData() { mBuffer = nullptr; }
uint8_t* MemoryTextureHost::GetBuffer() { return mBuffer; }
size_t MemoryTextureHost::GetBufferSize() {
// MemoryTextureHost just trusts that the buffer size is large enough to read
// anything we need to. That's because MemoryTextureHost has to trust the
// buffer pointer anyway, so the security model here is just that
// MemoryTexture's are restricted to same-process clients.
return std::numeric_limits<size_t>::max();
}
TextureParent::TextureParent(HostIPCAllocator* aSurfaceAllocator,
const dom::ContentParentId& aContentId,
uint64_t aSerial,
const wr::MaybeExternalImageId& aExternalImageId)
: mSurfaceAllocator(aSurfaceAllocator),
mContentId(aContentId),
mSerial(aSerial),
mExternalImageId(aExternalImageId) {
MOZ_COUNT_CTOR(TextureParent);
}
TextureParent::~TextureParent() { MOZ_COUNT_DTOR(TextureParent); }
void TextureParent::NotifyNotUsed(uint64_t aTransactionId) {
if (!mTextureHost) {
return;
}
mSurfaceAllocator->NotifyNotUsed(this, aTransactionId);
}
bool TextureParent::Init(const SurfaceDescriptor& aSharedData,
ReadLockDescriptor&& aReadLock,
const LayersBackend& aBackend,
const TextureFlags& aFlags) {
mTextureHost =
TextureHost::Create(aSharedData, std::move(aReadLock), mSurfaceAllocator,
aBackend, aFlags, mExternalImageId);
if (mTextureHost) {
mTextureHost->mActor = this;
}
return !!mTextureHost;
}
void TextureParent::Destroy() {
if (!mTextureHost) {
return;
}
if (mTextureHost->mReadLocked) {
// ReadUnlock here to make sure the ReadLock's shmem does not outlive the
// protocol that created it.
mTextureHost->ReadUnlock();
}
if (mTextureHost->GetFlags() & TextureFlags::DEALLOCATE_CLIENT) {
mTextureHost->ForgetSharedData();
}
mTextureHost->mActor = nullptr;
mTextureHost = nullptr;
}
void TextureHost::ReceivedDestroy(PTextureParent* aActor) {
static_cast<TextureParent*>(aActor)->RecvDestroy();
}
mozilla::ipc::IPCResult TextureParent::RecvRecycleTexture(
const TextureFlags& aTextureFlags) {
if (!mTextureHost) {
return IPC_OK();
}
mTextureHost->RecycleTexture(aTextureFlags);
return IPC_OK();
}
////////////////////////////////////////////////////////////////////////////////
} // namespace layers
} // namespace mozilla