/* -*- 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 gfx_layers_ipc_VideoBridgeParent_h_
#define gfx_layers_ipc_VideoBridgeParent_h_
#include "mozilla/Monitor.h"
#include "mozilla/layers/ISurfaceAllocator.h"
#include "mozilla/layers/PVideoBridgeParent.h"
namespace mozilla::layers {
enum class VideoBridgeSource : uint8_t;
class CompositorThreadHolder;
class VideoBridgeParent final :
public PVideoBridgeParent,
public HostIPCAllocator,
public mozilla::ipc::IShmemAllocator {
public:
NS_IMETHODIMP_(MozExternalRefCountType) AddRef(
void) override;
NS_IMETHODIMP_(MozExternalRefCountType) Release(
void) override;
static RefPtr<VideoBridgeParent> GetSingleton(
const Maybe<VideoBridgeSource>& aSource);
static void Open(Endpoint<PVideoBridgeParent>&& aEndpoint,
VideoBridgeSource aSource);
static void Shutdown();
static void UnregisterExternalImages();
already_AddRefed<TextureHost> LookupTextureAsync(
const dom::ContentParentId& aContentId, uint64_t aSerial);
already_AddRefed<TextureHost> LookupTexture(
const dom::ContentParentId& aContentId, uint64_t aSerial);
// PVideoBridgeParent
void ActorDestroy(ActorDestroyReason aWhy) override;
PTextureParent* AllocPTextureParent(
const SurfaceDescriptor& aSharedData,
ReadLockDescriptor& aReadLock,
const LayersBackend& aLayersBackend,
const TextureFlags& aFlags,
const dom::ContentParentId& aContentId,
const uint64_t& aSerial);
bool DeallocPTextureParent(PTextureParent* actor);
// HostIPCAllocator
base::ProcessId GetChildProcessId() override {
return OtherPid(); }
void NotifyNotUsed(PTextureParent* aTexture,
uint64_t aTransactionId) override;
void SendAsyncMessage(
const nsTArray<AsyncParentMessageData>& aMessage) override;
// ISurfaceAllocator
IShmemAllocator* AsShmemAllocator() override {
return this; }
bool IsSameProcess()
const override;
bool IPCOpen()
const override {
return !mClosed; }
// IShmemAllocator
bool AllocShmem(size_t aSize, mozilla::ipc::Shmem* aShmem) override;
bool AllocUnsafeShmem(size_t aSize, mozilla::ipc::Shmem* aShmem) override;
bool DeallocShmem(mozilla::ipc::Shmem& aShmem) override;
private:
~VideoBridgeParent();
explicit VideoBridgeParent(VideoBridgeSource aSource);
void Bind(Endpoint<PVideoBridgeParent>&& aEndpoint);
static void ShutdownInternal();
void DoUnregisterExternalImages();
Monitor mMonitor;
RefPtr<CompositorThreadHolder> mCompositorThreadHolder
MOZ_GUARDED_BY(mMonitor);
std::map<uint64_t, PTextureParent*> mTextureMap MOZ_GUARDED_BY(mMonitor);
bool mClosed;
};
}
// namespace mozilla::layers
#endif // gfx_layers_ipc_VideoBridgeParent_h_
