зеркало из https://github.com/mozilla/gecko-dev.git
153 строки
5.4 KiB
C++
153 строки
5.4 KiB
C++
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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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 InfallibleTArray
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class MessageLoop;
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namespace base {
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class Thread;
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} // namespace base
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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 ShmemAllocator
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{
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public:
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typedef InfallibleTArray<CompositableOperation> EditArray;
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typedef InfallibleTArray<OpDestroy> OpDestroyArray;
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protected:
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ImageBridgeParent(MessageLoop* aLoop, ProcessId aChildProcessId);
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public:
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~ImageBridgeParent();
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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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virtual ShmemAllocator* AsShmemAllocator() override { return this; }
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virtual void ActorDestroy(ActorDestroyReason aWhy) override;
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// CompositableParentManager
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virtual void SendAsyncMessage(const InfallibleTArray<AsyncParentMessageData>& aMessage) override;
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virtual void NotifyNotUsed(PTextureParent* aTexture, uint64_t aTransactionId) override;
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virtual base::ProcessId GetChildProcessId() override
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{
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return OtherPid();
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}
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// PImageBridge
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virtual mozilla::ipc::IPCResult RecvImageBridgeThreadId(const PlatformThreadId& aThreadId) override;
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virtual mozilla::ipc::IPCResult RecvUpdate(EditArray&& aEdits, OpDestroyArray&& aToDestroy,
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const uint64_t& aFwdTransactionId) override;
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virtual mozilla::ipc::IPCResult RecvUpdateNoSwap(EditArray&& aEdits, OpDestroyArray&& aToDestroy,
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const uint64_t& aFwdTransactionId) override;
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virtual PTextureParent* AllocPTextureParent(const SurfaceDescriptor& aSharedData,
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const LayersBackend& aLayersBackend,
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const TextureFlags& aFlags,
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const uint64_t& aSerial) override;
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virtual bool DeallocPTextureParent(PTextureParent* actor) override;
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virtual mozilla::ipc::IPCResult RecvNewCompositable(const CompositableHandle& aHandle,
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const TextureInfo& aInfo) override;
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virtual mozilla::ipc::IPCResult RecvReleaseCompositable(const CompositableHandle& aHandle) override;
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PMediaSystemResourceManagerParent* AllocPMediaSystemResourceManagerParent() override;
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bool DeallocPMediaSystemResourceManagerParent(PMediaSystemResourceManagerParent* aActor) override;
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// Shutdown step 1
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virtual mozilla::ipc::IPCResult RecvWillClose() override;
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MessageLoop* GetMessageLoop() const { return mMessageLoop; }
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// ShmemAllocator
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virtual bool AllocShmem(size_t aSize,
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ipc::SharedMemory::SharedMemoryType aType,
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ipc::Shmem* aShmem) override;
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virtual bool AllocUnsafeShmem(size_t aSize,
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ipc::SharedMemory::SharedMemoryType aType,
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ipc::Shmem* aShmem) override;
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virtual void DeallocShmem(ipc::Shmem& aShmem) override;
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virtual bool IsSameProcess() const override;
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using CompositableParentManager::SetAboutToSendAsyncMessages;
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static void SetAboutToSendAsyncMessages(base::ProcessId aChildProcessId);
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using CompositableParentManager::SendPendingAsyncMessages;
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static void SendPendingAsyncMessages(base::ProcessId aChildProcessId);
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static ImageBridgeParent* GetInstance(ProcessId aId);
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static bool NotifyImageComposites(nsTArray<ImageCompositeNotificationInfo>& aNotifications);
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virtual bool UsesImageBridge() const override { return true; }
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virtual bool IPCOpen() const override { return !mClosed; }
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protected:
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void OnChannelConnected(int32_t pid) override;
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void Bind(Endpoint<PImageBridgeParent>&& aEndpoint);
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private:
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void DeferredDestroy();
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MessageLoop* mMessageLoop;
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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 mSetChildThreadPriority;
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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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static std::map<base::ProcessId, ImageBridgeParent*> sImageBridges;
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static MessageLoop* sMainLoop;
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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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