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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
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "RemoteImageHolder.h"
#include "GPUVideoImage.h"
#include "mozilla/PRemoteDecoderChild.h"
#include "mozilla/RemoteDecodeUtils.h"
#include "mozilla/RemoteDecoderManagerChild.h"
#include "mozilla/layers/ImageDataSerializer.h"
#include "mozilla/layers/VideoBridgeUtils.h"
namespace mozilla {
using namespace gfx;
using namespace layers;
RemoteImageHolder::RemoteImageHolder() = default;
RemoteImageHolder::RemoteImageHolder(layers::IGPUVideoSurfaceManager* aManager,
layers::VideoBridgeSource aSource,
const gfx::IntSize& aSize,
const gfx::ColorDepth& aColorDepth,
const layers::SurfaceDescriptor& aSD)
: mSource(aSource),
mSize(aSize),
mColorDepth(aColorDepth),
mSD(Some(aSD)),
mManager(aManager) {}
RemoteImageHolder::RemoteImageHolder(RemoteImageHolder&& aOther)
: mSource(aOther.mSource),
mSize(aOther.mSize),
mColorDepth(aOther.mColorDepth),
mSD(std::move(aOther.mSD)),
mManager(aOther.mManager) {
aOther.mSD = Nothing();
}
already_AddRefed<Image> RemoteImageHolder::DeserializeImage(
layers::BufferRecycleBin* aBufferRecycleBin) {
MOZ_ASSERT(mSD && mSD->type() == SurfaceDescriptor::TSurfaceDescriptorBuffer);
const SurfaceDescriptorBuffer& sdBuffer = mSD->get_SurfaceDescriptorBuffer();
MOZ_ASSERT(sdBuffer.desc().type() == BufferDescriptor::TYCbCrDescriptor);
if (sdBuffer.desc().type() != BufferDescriptor::TYCbCrDescriptor ||
!aBufferRecycleBin) {
return nullptr;
}
const YCbCrDescriptor& descriptor = sdBuffer.desc().get_YCbCrDescriptor();
uint8_t* buffer = nullptr;
const MemoryOrShmem& memOrShmem = sdBuffer.data();
switch (memOrShmem.type()) {
case MemoryOrShmem::Tuintptr_t:
buffer = reinterpret_cast<uint8_t*>(memOrShmem.get_uintptr_t());
break;
case MemoryOrShmem::TShmem:
buffer = memOrShmem.get_Shmem().get<uint8_t>();
break;
default:
MOZ_ASSERT(false, "Unknown MemoryOrShmem type");
}
if (!buffer) {
return nullptr;
}
PlanarYCbCrData pData;
pData.mYStride = descriptor.yStride();
pData.mCbCrStride = descriptor.cbCrStride();
// default mYSkip, mCbSkip, mCrSkip because not held in YCbCrDescriptor
pData.mYSkip = pData.mCbSkip = pData.mCrSkip = 0;
pData.mPictureRect = descriptor.display();
pData.mStereoMode = descriptor.stereoMode();
pData.mColorDepth = descriptor.colorDepth();
pData.mYUVColorSpace = descriptor.yUVColorSpace();
pData.mColorRange = descriptor.colorRange();
pData.mChromaSubsampling = descriptor.chromaSubsampling();
pData.mYChannel = ImageDataSerializer::GetYChannel(buffer, descriptor);
pData.mCbChannel = ImageDataSerializer::GetCbChannel(buffer, descriptor);
pData.mCrChannel = ImageDataSerializer::GetCrChannel(buffer, descriptor);
// images coming from AOMDecoder are RecyclingPlanarYCbCrImages.
RefPtr<RecyclingPlanarYCbCrImage> image =
new RecyclingPlanarYCbCrImage(aBufferRecycleBin);
bool setData = image->CopyData(pData);
MOZ_ASSERT(setData);
switch (memOrShmem.type()) {
case MemoryOrShmem::Tuintptr_t:
delete[] reinterpret_cast<uint8_t*>(memOrShmem.get_uintptr_t());
break;
case MemoryOrShmem::TShmem:
// Memory buffer will be recycled by the parent automatically.
break;
default:
MOZ_ASSERT(false, "Unknown MemoryOrShmem type");
}
if (!setData) {
return nullptr;
}
return image.forget();
}
already_AddRefed<layers::Image> RemoteImageHolder::TransferToImage(
layers::BufferRecycleBin* aBufferRecycleBin) {
if (IsEmpty()) {
return nullptr;
}
RefPtr<Image> image;
if (mSD->type() == SurfaceDescriptor::TSurfaceDescriptorBuffer) {
image = DeserializeImage(aBufferRecycleBin);
} else {
// The Image here creates a TextureData object that takes ownership
// of the SurfaceDescriptor, and is responsible for making sure that
// it gets deallocated.
SurfaceDescriptorRemoteDecoder remoteSD =
static_cast<const SurfaceDescriptorGPUVideo&>(*mSD);
remoteSD.source() = Some(mSource);
image = new GPUVideoImage(mManager, remoteSD, mSize, mColorDepth);
}
mSD = Nothing();
mManager = nullptr;
return image.forget();
}
RemoteImageHolder::~RemoteImageHolder() {
// GPU Images are held by the RemoteDecoderManagerParent, we didn't get to use
// this image holder (the decoder could have been flushed). We don't need to
// worry about Shmem based image as the Shmem will be automatically re-used
// once the decoder is used again.
if (!IsEmpty() && mManager &&
mSD->type() != SurfaceDescriptor::TSurfaceDescriptorBuffer) {
SurfaceDescriptorRemoteDecoder remoteSD =
static_cast<const SurfaceDescriptorGPUVideo&>(*mSD);
mManager->DeallocateSurfaceDescriptor(remoteSD);
}
}
/* static */ void ipc::IPDLParamTraits<RemoteImageHolder>::Write(
IPC::MessageWriter* aWriter, ipc::IProtocol* aActor,
RemoteImageHolder&& aParam) {
WriteIPDLParam(aWriter, aActor, aParam.mSource);
WriteIPDLParam(aWriter, aActor, aParam.mSize);
WriteIPDLParam(aWriter, aActor, aParam.mColorDepth);
WriteIPDLParam(aWriter, aActor, aParam.mSD);
// Empty this holder.
aParam.mSD = Nothing();
aParam.mManager = nullptr;
}
/* static */ bool ipc::IPDLParamTraits<RemoteImageHolder>::Read(
IPC::MessageReader* aReader, ipc::IProtocol* aActor,
RemoteImageHolder* aResult) {
if (!ReadIPDLParam(aReader, aActor, &aResult->mSource) ||
!ReadIPDLParam(aReader, aActor, &aResult->mSize) ||
!ReadIPDLParam(aReader, aActor, &aResult->mColorDepth) ||
!ReadIPDLParam(aReader, aActor, &aResult->mSD)) {
return false;
}
if (!aResult->IsEmpty()) {
aResult->mManager = RemoteDecoderManagerChild::GetSingleton(
GetRemoteDecodeInFromVideoBridgeSource(aResult->mSource));
}
return true;
}
} // namespace mozilla
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