зеркало из https://github.com/mozilla/gecko-dev.git
151 строка
4.9 KiB
C++
151 строка
4.9 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_ImageBridgeParent_h_
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#define gfx_layers_ipc_ImageBridgeParent_h_
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#include <stddef.h> // for size_t
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#include <stdint.h> // for uint32_t, uint64_t
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#include "CompositableTransactionParent.h"
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#include "mozilla/Assertions.h" // for MOZ_ASSERT_HELPER2
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#include "mozilla/Attributes.h" // for override
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#include "mozilla/ipc/ProtocolUtils.h"
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#include "mozilla/ipc/SharedMemory.h" // for SharedMemory, etc
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#include "mozilla/layers/CompositorThread.h"
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#include "mozilla/layers/PImageBridgeParent.h"
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#include "nsISupportsImpl.h"
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#include "nsTArrayForwardDeclare.h" // for nsTArray
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namespace mozilla {
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namespace ipc {
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class Shmem;
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} // namespace ipc
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namespace layers {
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struct ImageCompositeNotificationInfo;
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/**
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* ImageBridgeParent is the manager Protocol of async Compositables.
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*/
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class ImageBridgeParent final : public PImageBridgeParent,
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public CompositableParentManager,
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public mozilla::ipc::IShmemAllocator {
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public:
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typedef nsTArray<CompositableOperation> EditArray;
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typedef nsTArray<OpDestroy> OpDestroyArray;
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protected:
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ImageBridgeParent(nsISerialEventTarget* aThread, ProcessId aChildProcessId);
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public:
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virtual ~ImageBridgeParent();
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/**
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* Creates the globals of ImageBridgeParent.
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*/
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static void Setup();
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static ImageBridgeParent* CreateSameProcess();
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static bool CreateForGPUProcess(Endpoint<PImageBridgeParent>&& aEndpoint);
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static bool CreateForContent(Endpoint<PImageBridgeParent>&& aEndpoint);
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static void Shutdown();
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IShmemAllocator* AsShmemAllocator() override { return this; }
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void ActorDestroy(ActorDestroyReason aWhy) override;
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// CompositableParentManager
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void SendAsyncMessage(
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const nsTArray<AsyncParentMessageData>& aMessage) override;
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void NotifyNotUsed(PTextureParent* aTexture,
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uint64_t aTransactionId) override;
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static void NotifyBufferNotUsedOfCompositorBridge(
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base::ProcessId aChildProcessId, TextureHost* aTexture,
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uint64_t aTransactionId);
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void NotifyBufferNotUsedOfCompositorBridge(TextureHost* aTexture,
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uint64_t aTransactionId);
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base::ProcessId GetChildProcessId() override { return OtherPid(); }
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// PImageBridge
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mozilla::ipc::IPCResult RecvUpdate(EditArray&& aEdits,
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OpDestroyArray&& aToDestroy,
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const uint64_t& aFwdTransactionId);
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PTextureParent* AllocPTextureParent(
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const SurfaceDescriptor& aSharedData, ReadLockDescriptor& aReadLock,
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const LayersBackend& aLayersBackend, const TextureFlags& aFlags,
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const uint64_t& aSerial,
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const wr::MaybeExternalImageId& aExternalImageId);
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bool DeallocPTextureParent(PTextureParent* actor);
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mozilla::ipc::IPCResult RecvNewCompositable(const CompositableHandle& aHandle,
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const TextureInfo& aInfo);
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mozilla::ipc::IPCResult RecvReleaseCompositable(
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const CompositableHandle& aHandle);
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PMediaSystemResourceManagerParent* AllocPMediaSystemResourceManagerParent();
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bool DeallocPMediaSystemResourceManagerParent(
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PMediaSystemResourceManagerParent* aActor);
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// Shutdown step 1
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mozilla::ipc::IPCResult RecvWillClose();
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nsISerialEventTarget* GetThread() const { return mThread; }
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// IShmemAllocator
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bool AllocShmem(size_t aSize, ipc::SharedMemory::SharedMemoryType aType,
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ipc::Shmem* aShmem) override;
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bool AllocUnsafeShmem(size_t aSize, ipc::SharedMemory::SharedMemoryType aType,
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ipc::Shmem* aShmem) override;
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bool DeallocShmem(ipc::Shmem& aShmem) override;
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bool IsSameProcess() const override;
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static already_AddRefed<ImageBridgeParent> GetInstance(ProcessId aId);
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static bool NotifyImageComposites(
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nsTArray<ImageCompositeNotificationInfo>& aNotifications);
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bool UsesImageBridge() const override { return true; }
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bool IPCOpen() const override { return !mClosed; }
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protected:
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void Bind(Endpoint<PImageBridgeParent>&& aEndpoint);
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private:
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static void ShutdownInternal();
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void DeferredDestroy();
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nsCOMPtr<nsISerialEventTarget> mThread;
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// This keeps us alive until ActorDestroy(), at which point we do a
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// deferred destruction of ourselves.
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RefPtr<ImageBridgeParent> mSelfRef;
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bool mClosed;
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/**
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* Map of all living ImageBridgeParent instances
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*/
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typedef std::map<base::ProcessId, ImageBridgeParent*> ImageBridgeMap;
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static ImageBridgeMap sImageBridges;
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RefPtr<CompositorThreadHolder> mCompositorThreadHolder;
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};
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} // namespace layers
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} // namespace mozilla
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#endif // gfx_layers_ipc_ImageBridgeParent_h_
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