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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/. */
#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 VideoBridgeChild* GetSingleton();
// PVideoBridgeChild
PTextureChild* AllocPTextureChild(const SurfaceDescriptor& aSharedData,
ReadLockDescriptor& aReadLock,
const LayersBackend& aLayersBackend,
const TextureFlags& aFlags,
const dom::ContentParentId& aContentId,
const uint64_t& aSerial);
bool DeallocPTextureChild(PTextureChild* actor);
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
PTextureChild* CreateTexture(
const SurfaceDescriptor& aSharedData, ReadLockDescriptor&& aReadLock,
LayersBackend aLayersBackend, TextureFlags aFlags,
const dom::ContentParentId& aContentId, uint64_t aSerial,
wr::MaybeExternalImageId& aExternalImageId) override;
// ClientIPCAllocator
base::ProcessId GetParentPid() const override { return OtherPid(); }
nsISerialEventTarget* GetThread() const override { return mThread; }
void CancelWaitForNotifyNotUsed(uint64_t aTextureId) override {
MOZ_ASSERT(false, "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
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