gecko-dev/gfx/layers/ipc/VideoBridgeParent.cpp

128 строки
3.1 KiB
C++

/* -*- 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 "VideoBridgeParent.h"
#include "CompositorThread.h"
#include "mozilla/layers/TextureHost.h"
namespace mozilla {
namespace layers {
using namespace mozilla::ipc;
using namespace mozilla::gfx;
static VideoBridgeParent* sVideoBridgeSingleton;
VideoBridgeParent::VideoBridgeParent()
: mClosed(false)
{
mSelfRef = this;
sVideoBridgeSingleton = this;
mCompositorThreadRef = CompositorThreadHolder::GetSingleton();
}
VideoBridgeParent::~VideoBridgeParent()
{
sVideoBridgeSingleton = nullptr;
}
/* static */ VideoBridgeParent*
VideoBridgeParent::GetSingleton()
{
return sVideoBridgeSingleton;
}
TextureHost*
VideoBridgeParent::LookupTexture(uint64_t aSerial)
{
return TextureHost::AsTextureHost(mTextureMap[aSerial]);
}
void
VideoBridgeParent::ActorDestroy(ActorDestroyReason aWhy)
{
// Can't alloc/dealloc shmems from now on.
mClosed = true;
}
void
VideoBridgeParent::DeallocPVideoBridgeParent()
{
mCompositorThreadRef = nullptr;
mSelfRef = nullptr;
}
PTextureParent*
VideoBridgeParent::AllocPTextureParent(const SurfaceDescriptor& aSharedData,
const ReadLockDescriptor& aReadLock,
const LayersBackend& aLayersBackend,
const TextureFlags& aFlags,
const uint64_t& aSerial)
{
PTextureParent* parent =
TextureHost::CreateIPDLActor(this, aSharedData, aReadLock, aLayersBackend, aFlags, aSerial, Nothing());
mTextureMap[aSerial] = parent;
return parent;
}
bool
VideoBridgeParent::DeallocPTextureParent(PTextureParent* actor)
{
mTextureMap.erase(TextureHost::GetTextureSerial(actor));
return TextureHost::DestroyIPDLActor(actor);
}
void
VideoBridgeParent::SendAsyncMessage(const InfallibleTArray<AsyncParentMessageData>& aMessage)
{
MOZ_ASSERT(false, "AsyncMessages not supported");
}
bool
VideoBridgeParent::AllocShmem(size_t aSize,
ipc::SharedMemory::SharedMemoryType aType,
ipc::Shmem* aShmem)
{
if (mClosed) {
return false;
}
return PVideoBridgeParent::AllocShmem(aSize, aType, aShmem);
}
bool
VideoBridgeParent::AllocUnsafeShmem(size_t aSize,
ipc::SharedMemory::SharedMemoryType aType,
ipc::Shmem* aShmem)
{
if (mClosed) {
return false;
}
return PVideoBridgeParent::AllocUnsafeShmem(aSize, aType, aShmem);
}
void
VideoBridgeParent::DeallocShmem(ipc::Shmem& aShmem)
{
if (mClosed) {
return;
}
PVideoBridgeParent::DeallocShmem(aShmem);
}
bool
VideoBridgeParent::IsSameProcess() const
{
return OtherPid() == base::GetCurrentProcId();
}
void
VideoBridgeParent::NotifyNotUsed(PTextureParent* aTexture, uint64_t aTransactionId)
{
}
} // namespace layers
} // namespace mozilla