зеркало из https://github.com/mozilla/gecko-dev.git
85 строки
2.8 KiB
C++
85 строки
2.8 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 gfx_layers_ipc_VideoBridgeParent_h_
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#define gfx_layers_ipc_VideoBridgeParent_h_
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#include "mozilla/layers/ISurfaceAllocator.h"
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#include "mozilla/layers/PVideoBridgeParent.h"
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namespace mozilla {
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namespace layers {
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enum class VideoBridgeSource : uint8_t;
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class CompositorThreadHolder;
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class VideoBridgeParent final : public PVideoBridgeParent,
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public HostIPCAllocator,
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public mozilla::ipc::IShmemAllocator {
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public:
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NS_INLINE_DECL_REFCOUNTING_INHERITED(VideoBridgeParent, HostIPCAllocator)
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static VideoBridgeParent* GetSingleton(
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const Maybe<VideoBridgeSource>& aSource);
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static void Open(Endpoint<PVideoBridgeParent>&& aEndpoint,
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VideoBridgeSource aSource);
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static void Shutdown();
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static void UnregisterExternalImages();
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TextureHost* LookupTexture(uint64_t aSerial);
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// PVideoBridgeParent
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void ActorDestroy(ActorDestroyReason aWhy) override;
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PTextureParent* AllocPTextureParent(const SurfaceDescriptor& aSharedData,
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ReadLockDescriptor& aReadLock,
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const LayersBackend& aLayersBackend,
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const TextureFlags& aFlags,
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const uint64_t& aSerial);
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bool DeallocPTextureParent(PTextureParent* actor);
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// HostIPCAllocator
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base::ProcessId GetChildProcessId() override { return OtherPid(); }
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void NotifyNotUsed(PTextureParent* aTexture,
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uint64_t aTransactionId) override;
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void SendAsyncMessage(
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const nsTArray<AsyncParentMessageData>& aMessage) override;
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// ISurfaceAllocator
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IShmemAllocator* AsShmemAllocator() override { return this; }
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bool IsSameProcess() const override;
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bool IPCOpen() const override { return !mClosed; }
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// IShmemAllocator
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bool AllocShmem(size_t aSize, ipc::Shmem* aShmem) override;
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bool AllocUnsafeShmem(size_t aSize, ipc::Shmem* aShmem) override;
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bool DeallocShmem(ipc::Shmem& aShmem) override;
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void OnChannelError() override;
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private:
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~VideoBridgeParent();
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explicit VideoBridgeParent(VideoBridgeSource aSource);
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void Bind(Endpoint<PVideoBridgeParent>&& aEndpoint);
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void ReleaseCompositorThread();
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void DoUnregisterExternalImages();
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RefPtr<CompositorThreadHolder> mCompositorThreadHolder;
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std::map<uint64_t, PTextureParent*> mTextureMap;
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bool mClosed;
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};
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} // namespace layers
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} // namespace mozilla
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#endif // gfx_layers_ipc_VideoBridgeParent_h_
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