зеркало из https://github.com/mozilla/gecko-dev.git
108 строки
4.0 KiB
C++
108 строки
4.0 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef include_dom_media_ipc_RemoteDecoderManagerChild_h
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#define include_dom_media_ipc_RemoteDecoderManagerChild_h
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#include "mozilla/PRemoteDecoderManagerChild.h"
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#include "mozilla/layers/VideoBridgeUtils.h"
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#include "GPUVideoImage.h"
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namespace mozilla {
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class RemoteDecoderManagerChild final
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: public PRemoteDecoderManagerChild,
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public mozilla::ipc::IShmemAllocator,
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public mozilla::layers::IGPUVideoSurfaceManager {
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friend class PRemoteDecoderManagerChild;
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public:
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NS_INLINE_DECL_THREADSAFE_REFCOUNTING(RemoteDecoderManagerChild, override)
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// Can only be called from the manager thread
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static RemoteDecoderManagerChild* GetRDDProcessSingleton();
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static RemoteDecoderManagerChild* GetGPUProcessSingleton();
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// Can be called from any thread.
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static nsIThread* GetManagerThread();
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// Can be called from any thread, dispatches the request to the IPDL thread
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// internally and will be ignored if the IPDL actor has been destroyed.
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already_AddRefed<gfx::SourceSurface> Readback(
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const SurfaceDescriptorGPUVideo& aSD) override;
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void DeallocateSurfaceDescriptor(
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const SurfaceDescriptorGPUVideo& aSD) override;
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bool AllocShmem(size_t aSize,
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mozilla::ipc::SharedMemory::SharedMemoryType aShmType,
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mozilla::ipc::Shmem* aShmem) override {
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return PRemoteDecoderManagerChild::AllocShmem(aSize, aShmType, aShmem);
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}
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bool AllocUnsafeShmem(size_t aSize,
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mozilla::ipc::SharedMemory::SharedMemoryType aShmType,
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mozilla::ipc::Shmem* aShmem) override {
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return PRemoteDecoderManagerChild::AllocUnsafeShmem(aSize, aShmType,
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aShmem);
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}
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// Can be called from any thread, dispatches the request to the IPDL thread
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// internally and will be ignored if the IPDL actor has been destroyed.
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bool DeallocShmem(mozilla::ipc::Shmem& aShmem) override;
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// Main thread only
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static void InitForRDDProcess(
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Endpoint<PRemoteDecoderManagerChild>&& aVideoManager);
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static void InitForGPUProcess(
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Endpoint<PRemoteDecoderManagerChild>&& aVideoManager);
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static void Shutdown();
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// Run aTask (on the manager thread) when we next attempt to create a new
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// manager (even if creation fails). Intended to be called from ActorDestroy
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// when we get notified that the old manager is being destroyed. Can only be
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// called from the manager thread.
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void RunWhenGPUProcessRecreated(already_AddRefed<Runnable> aTask);
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bool CanSend();
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layers::VideoBridgeSource GetSource() const { return mSource; }
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protected:
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void InitIPDL();
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void ActorDestroy(ActorDestroyReason aWhy) override;
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void ActorDealloc() override;
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void HandleFatalError(const char* aMsg) const override;
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PRemoteDecoderChild* AllocPRemoteDecoderChild(
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const RemoteDecoderInfoIPDL& aRemoteDecoderInfo,
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const CreateDecoderParams::OptionSet& aOptions,
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const Maybe<layers::TextureFactoryIdentifier>& aIdentifier,
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bool* aSuccess, nsCString* aErrorDescription);
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bool DeallocPRemoteDecoderChild(PRemoteDecoderChild* actor);
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private:
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// Main thread only
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static void InitializeThread();
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explicit RemoteDecoderManagerChild(layers::VideoBridgeSource aSource);
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~RemoteDecoderManagerChild() = default;
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static void OpenForRDDProcess(
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Endpoint<PRemoteDecoderManagerChild>&& aEndpoint);
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static void OpenForGPUProcess(
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Endpoint<PRemoteDecoderManagerChild>&& aEndpoint);
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RefPtr<RemoteDecoderManagerChild> mIPDLSelfRef;
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// The associated source of this decoder manager
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layers::VideoBridgeSource mSource;
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// Should only ever be accessed on the manager thread.
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bool mCanSend = false;
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};
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} // namespace mozilla
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#endif // include_dom_media_ipc_RemoteDecoderManagerChild_h
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