gecko-dev/dom/media/ipc/RemoteDecoderManagerChild.h
David Parks 78fbd97e70 Bug 1577336: Part 4 - Refactor some things in RemoteDecoderManager r=mattwoodrow,jolin
In anticipation of the rest of this patch series, we make 2 changes to the RemoteDecoderManager:
1. Rename RemoteDecoderManagerChild::DeallocateSurfaceDescriptorGPUVideo to DeallocateSurfaceDescriptor
2. Move call to RemoteDecoderManager::GetSource() from GPUVideoTextureClient to RemoteVideoDecoder.

Differential Revision: https://phabricator.services.mozilla.com/D52396

--HG--
extra : moz-landing-system : lando
2019-11-20 21:53:28 +00:00

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4.1 KiB
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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 include_dom_media_ipc_RemoteDecoderManagerChild_h
#define include_dom_media_ipc_RemoteDecoderManagerChild_h
#include "mozilla/PRemoteDecoderManagerChild.h"
#include "mozilla/layers/VideoBridgeUtils.h"
#include "GPUVideoImage.h"
namespace mozilla {
class RemoteDecoderManagerChild final
: public PRemoteDecoderManagerChild,
public mozilla::ipc::IShmemAllocator,
public mozilla::layers::IGPUVideoSurfaceManager {
friend class PRemoteDecoderManagerChild;
public:
NS_INLINE_DECL_THREADSAFE_REFCOUNTING(RemoteDecoderManagerChild, override)
// Can only be called from the manager thread
static RemoteDecoderManagerChild* GetRDDProcessSingleton();
static RemoteDecoderManagerChild* GetGPUProcessSingleton();
// Can be called from any thread.
static nsIThread* GetManagerThread();
static AbstractThread* GetManagerAbstractThread();
// Can be called from any thread, dispatches the request to the IPDL thread
// internally and will be ignored if the IPDL actor has been destroyed.
already_AddRefed<gfx::SourceSurface> Readback(
const SurfaceDescriptorGPUVideo& aSD) override;
void DeallocateSurfaceDescriptor(
const SurfaceDescriptorGPUVideo& aSD) override;
bool AllocShmem(size_t aSize,
mozilla::ipc::SharedMemory::SharedMemoryType aShmType,
mozilla::ipc::Shmem* aShmem) override {
return PRemoteDecoderManagerChild::AllocShmem(aSize, aShmType, aShmem);
}
bool AllocUnsafeShmem(size_t aSize,
mozilla::ipc::SharedMemory::SharedMemoryType aShmType,
mozilla::ipc::Shmem* aShmem) override {
return PRemoteDecoderManagerChild::AllocUnsafeShmem(aSize, aShmType,
aShmem);
}
// Can be called from any thread, dispatches the request to the IPDL thread
// internally and will be ignored if the IPDL actor has been destroyed.
bool DeallocShmem(mozilla::ipc::Shmem& aShmem) override;
// Main thread only
static void InitForRDDProcess(
Endpoint<PRemoteDecoderManagerChild>&& aVideoManager);
static void InitForGPUProcess(
Endpoint<PRemoteDecoderManagerChild>&& aVideoManager);
static void Shutdown();
// Run aTask (on the manager thread) when we next attempt to create a new
// manager (even if creation fails). Intended to be called from ActorDestroy
// when we get notified that the old manager is being destroyed. Can only be
// called from the manager thread.
void RunWhenGPUProcessRecreated(already_AddRefed<Runnable> aTask);
bool CanSend();
layers::VideoBridgeSource GetSource() const { return mSource; }
protected:
void InitIPDL();
void ActorDestroy(ActorDestroyReason aWhy) override;
void ActorDealloc() override;
void HandleFatalError(const char* aMsg) const override;
PRemoteDecoderChild* AllocPRemoteDecoderChild(
const RemoteDecoderInfoIPDL& aRemoteDecoderInfo,
const CreateDecoderParams::OptionSet& aOptions,
const Maybe<layers::TextureFactoryIdentifier>& aIdentifier,
bool* aSuccess, nsCString* aErrorDescription);
bool DeallocPRemoteDecoderChild(PRemoteDecoderChild* actor);
private:
// Main thread only
static void InitializeThread();
explicit RemoteDecoderManagerChild(layers::VideoBridgeSource aSource);
~RemoteDecoderManagerChild() = default;
static void OpenForRDDProcess(
Endpoint<PRemoteDecoderManagerChild>&& aEndpoint);
static void OpenForGPUProcess(
Endpoint<PRemoteDecoderManagerChild>&& aEndpoint);
RefPtr<RemoteDecoderManagerChild> mIPDLSelfRef;
// The associated source of this decoder manager
layers::VideoBridgeSource mSource;
// Should only ever be accessed on the manager thread.
bool mCanSend = false;
};
} // namespace mozilla
#endif // include_dom_media_ipc_RemoteDecoderManagerChild_h