/* 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/. */
#ifndef MOZILLA_GFX_VIDEOBRIDGECHILD_H
#define MOZILLA_GFX_VIDEOBRIDGECHILD_H
#include "mozilla/layers/PVideoBridgeChild.h"
#include "mozilla/layers/VideoBridgeUtils.h"
#include "ISurfaceAllocator.h"
#include "TextureForwarder.h"
namespace mozilla {
namespace layers {
class SynchronousTask;
class VideoBridgeChild final : public PVideoBridgeChild,
public TextureForwarder {
public:
NS_INLINE_DECL_THREADSAFE_REFCOUNTING(VideoBridgeChild, override);
static void StartupForGPUProcess();
static void Shutdown();
static RefPtr<VideoBridgeChild> GetSingleton();
mozilla::ipc::IPCResult RecvPing(PingResolver&& aResolver);
void ActorDestroy(ActorDestroyReason aWhy) override;
// ISurfaceAllocator
bool AllocUnsafeShmem(size_t aSize, mozilla::ipc::Shmem* aShmem) override;
bool AllocShmem(size_t aSize, mozilla::ipc::Shmem* aShmem) override;
bool DeallocShmem(mozilla::ipc::Shmem& aShmem) override;
// TextureForwarder
already_AddRefed<PTextureChild> CreateTexture(
const SurfaceDescriptor& aSharedData, ReadLockDescriptor&& aReadLock,
LayersBackend aLayersBackend, TextureFlags aFlags,
const dom::ContentParentId& aContentId, uint64_t aSerial,
wr::MaybeExternalImageId& aExternalImageId) override;
// LayersIPCChannel
base::ProcessId GetParentPid()
const override {
return OtherPid(); }
nsISerialEventTarget* GetThread()
const override {
return mThread; }
void CancelWaitForNotifyNotUsed(uint64_t aTextureId) override {
MOZ_ASSERT_UNREACHABLE(
"NO RECYCLING HERE");
}
// ISurfaceAllocator
bool IsSameProcess()
const override;
bool CanSend() {
return mCanSend; }
static void Open(Endpoint<PVideoBridgeChild>&& aEndpoint);
protected:
void HandleFatalError(
const char* aMsg) override;
bool DispatchAllocShmemInternal(size_t aSize, mozilla::ipc::Shmem* aShmem,
bool aUnsafe);
void ProxyAllocShmemNow(SynchronousTask* aTask, size_t aSize,
mozilla::ipc::Shmem* aShmem,
bool aUnsafe,
bool* aSuccess);
void ProxyDeallocShmemNow(SynchronousTask* aTask, mozilla::ipc::Shmem* aShmem,
bool* aResult);
private:
VideoBridgeChild();
virtual ~VideoBridgeChild();
nsCOMPtr<nsISerialEventTarget> mThread;
bool mCanSend;
};
}
// namespace layers
}
// namespace mozilla
#endif