зеркало из https://github.com/mozilla/gecko-dev.git
98 строки
3.5 KiB
C++
98 строки
3.5 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_ipc_VideoDecoderManagerChild_h
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#define include_ipc_VideoDecoderManagerChild_h
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#include "mozilla/RefPtr.h"
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#include "mozilla/PVideoDecoderManagerChild.h"
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namespace mozilla {
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namespace gfx {
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class SourceSurface;
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}
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class VideoDecoderManagerChild final : public PVideoDecoderManagerChild,
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public mozilla::ipc::IShmemAllocator {
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public:
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NS_INLINE_DECL_THREADSAFE_REFCOUNTING(VideoDecoderManagerChild)
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// Can only be called from the manager thread
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static VideoDecoderManagerChild* GetSingleton();
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// Can be called from any thread.
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static nsIThread* GetManagerThread();
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static AbstractThread* GetManagerAbstractThread();
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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);
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void DeallocateSurfaceDescriptorGPUVideo(
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const SurfaceDescriptorGPUVideo& aSD);
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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 PVideoDecoderManagerChild::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 PVideoDecoderManagerChild::AllocUnsafeShmem(aSize, aShmType, 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 InitForContent(
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Endpoint<PVideoDecoderManagerChild>&& 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 RunWhenRecreated(already_AddRefed<Runnable> aTask);
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bool CanSend();
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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 DeallocPVideoDecoderManagerChild() override;
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void HandleFatalError(const char* aMsg) const override;
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PVideoDecoderChild* AllocPVideoDecoderChild(
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const VideoInfo& aVideoInfo, const float& aFramerate,
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const CreateDecoderParams::OptionSet& aOptions,
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const layers::TextureFactoryIdentifier& aIdentifier, bool* aSuccess,
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nsCString* aBlacklistedD3D11Driver, nsCString* aBlacklistedD3D9Driver,
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nsCString* aErrorDescription) override;
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bool DeallocPVideoDecoderChild(PVideoDecoderChild* actor) override;
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private:
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// Main thread only
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static void InitializeThread();
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VideoDecoderManagerChild() : mCanSend(false) {}
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~VideoDecoderManagerChild() {}
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static void Open(Endpoint<PVideoDecoderManagerChild>&& aEndpoint);
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RefPtr<VideoDecoderManagerChild> mIPDLSelfRef;
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// Should only ever be accessed on the manager thread.
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bool mCanSend;
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};
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} // namespace mozilla
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#endif // include_ipc_VideoDecoderManagerChild_h
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