From 36d22d82aa202bb199967e9512281e9a53db42c9 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 21:33:14 +0200 Subject: Adding upstream version 115.7.0esr. Signed-off-by: Daniel Baumann --- gfx/layers/ipc/CompositorBridgeChild.h | 251 +++++++++++++++++++++++++++++++++ 1 file changed, 251 insertions(+) create mode 100644 gfx/layers/ipc/CompositorBridgeChild.h (limited to 'gfx/layers/ipc/CompositorBridgeChild.h') diff --git a/gfx/layers/ipc/CompositorBridgeChild.h b/gfx/layers/ipc/CompositorBridgeChild.h new file mode 100644 index 0000000000..723cbc5705 --- /dev/null +++ b/gfx/layers/ipc/CompositorBridgeChild.h @@ -0,0 +1,251 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim: set ts=8 sts=2 et sw=2 tw=80: */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#ifndef mozilla_layers_CompositorBridgeChild_h +#define mozilla_layers_CompositorBridgeChild_h + +#include "base/basictypes.h" // for DISALLOW_EVIL_CONSTRUCTORS +#include "mozilla/Assertions.h" // for MOZ_ASSERT_HELPER2 +#include "mozilla/Attributes.h" // for override +#include "mozilla/Monitor.h" +#include "mozilla/ipc/ProtocolUtils.h" +#include "mozilla/layers/PCompositorBridgeChild.h" +#include "mozilla/layers/TextureForwarder.h" // for TextureForwarder +#include "mozilla/webrender/WebRenderTypes.h" +#include "nsClassHashtable.h" // for nsClassHashtable +#include "nsCOMPtr.h" // for nsCOMPtr +#include "nsHashKeys.h" // for nsUint64HashKey +#include "nsISupportsImpl.h" // for NS_INLINE_DECL_REFCOUNTING +#include "nsIWeakReferenceUtils.h" + +#include + +namespace mozilla { + +namespace dom { +class BrowserChild; +} // namespace dom + +namespace widget { +class CompositorWidget; +} // namespace widget + +namespace layers { + +using mozilla::dom::BrowserChild; + +class IAPZCTreeManager; +class APZCTreeManagerChild; +class CanvasChild; +class CompositorBridgeParent; +class CompositorManagerChild; +class CompositorOptions; +class WebRenderLayerManager; +class TextureClient; +class TextureClientPool; +struct FrameMetrics; + +class CompositorBridgeChild final : public PCompositorBridgeChild, + public TextureForwarder { + typedef nsTArray AsyncParentMessageArray; + + friend class PCompositorBridgeChild; + + public: + NS_INLINE_DECL_THREADSAFE_REFCOUNTING(CompositorBridgeChild, override); + + explicit CompositorBridgeChild(CompositorManagerChild* aManager); + + /** + * Initialize the singleton compositor bridge for a content process. + */ + void InitForContent(uint32_t aNamespace); + + void InitForWidget(uint64_t aProcessToken, + WebRenderLayerManager* aLayerManager, uint32_t aNamespace); + + void Destroy(); + + static CompositorBridgeChild* Get(); + + // Returns whether the compositor is in the GPU process (false if in the UI + // process). This may only be called on the main thread. + static bool CompositorIsInGPUProcess(); + + mozilla::ipc::IPCResult RecvDidComposite( + const LayersId& aId, const nsTArray& aTransactionIds, + const TimeStamp& aCompositeStart, const TimeStamp& aCompositeEnd); + + mozilla::ipc::IPCResult RecvNotifyFrameStats( + nsTArray&& aFrameStats); + + mozilla::ipc::IPCResult RecvNotifyJankedAnimations( + const LayersId& aLayersId, nsTArray&& aJankedAnimations); + + PTextureChild* AllocPTextureChild( + const SurfaceDescriptor& aSharedData, ReadLockDescriptor& aReadLock, + const LayersBackend& aLayersBackend, const TextureFlags& aFlags, + const LayersId& aId, const uint64_t& aSerial, + const wr::MaybeExternalImageId& aExternalImageId); + + bool DeallocPTextureChild(PTextureChild* actor); + + mozilla::ipc::IPCResult RecvParentAsyncMessages( + nsTArray&& aMessages); + PTextureChild* CreateTexture( + const SurfaceDescriptor& aSharedData, ReadLockDescriptor&& aReadLock, + LayersBackend aLayersBackend, TextureFlags aFlags, + const dom::ContentParentId& aContentId, uint64_t aSerial, + wr::MaybeExternalImageId& aExternalImageId) override; + + already_AddRefed GetCanvasChild() final; + + void EndCanvasTransaction(); + + // Beware that these methods don't override their super-class equivalent + // (which are not virtual), they just overload them. All of these Send* + // methods just add a sanity check (that it is not too late send a message) + // and forward the call to the super-class's equivalent method. This means + // that it is correct to call directly the super-class methods, but you won't + // get the extra safety provided here. + bool SendWillClose(); + bool SendPause(); + bool SendResume(); + bool SendResumeAsync(); + bool SendAdoptChild(const LayersId& id); + bool SendFlushRendering(const wr::RenderReasons& aReasons); + bool SendStartFrameTimeRecording(const int32_t& bufferSize, + uint32_t* startIndex); + bool SendStopFrameTimeRecording(const uint32_t& startIndex, + nsTArray* intervals); + bool IsSameProcess() const override; + + bool IPCOpen() const override { return mCanSend; } + + static void ShutDown(); + + void UpdateFwdTransactionId() { ++mFwdTransactionId; } + uint64_t GetFwdTransactionId() { return mFwdTransactionId; } + + /** + * Hold TextureClient ref until end of usage on host side if + * TextureFlags::RECYCLE is set. Host side's usage is checked via + * CompositableRef. + */ + void HoldUntilCompositableRefReleasedIfNecessary(TextureClient* aClient); + + /** + * Notify id of Texture When host side end its use. Transaction id is used to + * make sure if there is no newer usage. + */ + void NotifyNotUsed(uint64_t aTextureId, uint64_t aFwdTransactionId); + + void CancelWaitForNotifyNotUsed(uint64_t aTextureId) override; + + FixedSizeSmallShmemSectionAllocator* GetTileLockAllocator() override; + + nsISerialEventTarget* GetThread() const override { return mThread; } + + base::ProcessId GetParentPid() const override { return OtherPid(); } + + bool AllocUnsafeShmem(size_t aSize, mozilla::ipc::Shmem* aShmem) override; + bool AllocShmem(size_t aSize, mozilla::ipc::Shmem* aShmem) override; + bool DeallocShmem(mozilla::ipc::Shmem& aShmem) override; + + PCompositorWidgetChild* AllocPCompositorWidgetChild( + const CompositorWidgetInitData& aInitData); + bool DeallocPCompositorWidgetChild(PCompositorWidgetChild* aActor); + + PAPZCTreeManagerChild* AllocPAPZCTreeManagerChild(const LayersId& aLayersId); + bool DeallocPAPZCTreeManagerChild(PAPZCTreeManagerChild* aActor); + + PAPZChild* AllocPAPZChild(const LayersId& aLayersId); + bool DeallocPAPZChild(PAPZChild* aActor); + + PWebRenderBridgeChild* AllocPWebRenderBridgeChild( + const wr::PipelineId& aPipelineId, const LayoutDeviceIntSize&, + const WindowKind&); + bool DeallocPWebRenderBridgeChild(PWebRenderBridgeChild* aActor); + + wr::MaybeExternalImageId GetNextExternalImageId() override; + + wr::PipelineId GetNextPipelineId(); + + private: + // Private destructor, to discourage deletion outside of Release(): + virtual ~CompositorBridgeChild(); + + // Must only be called from the paint thread. If the main thread is delaying + // IPC messages, this forwards all such delayed IPC messages to the I/O thread + // and resumes IPC. + void ResumeIPCAfterAsyncPaint(); + + void PrepareFinalDestroy(); + void AfterDestroy(); + + void ActorDestroy(ActorDestroyReason aWhy) override; + + mozilla::ipc::IPCResult RecvObserveLayersUpdate( + const LayersId& aLayersId, const LayersObserverEpoch& aEpoch, + const bool& aActive); + + mozilla::ipc::IPCResult RecvCompositorOptionsChanged( + const LayersId& aLayersId, const CompositorOptions& aNewOptions); + + uint64_t GetNextResourceId(); + + RefPtr mCompositorManager; + + RefPtr mLayerManager; + + uint32_t mIdNamespace; + uint32_t mResourceId; + + // When not multi-process, hold a reference to the CompositorBridgeParent to + // keep it alive. This reference should be null in multi-process. + RefPtr mCompositorBridgeParent; + + DISALLOW_EVIL_CONSTRUCTORS(CompositorBridgeChild); + + // True until the beginning of the two-step shutdown sequence of this actor. + bool mCanSend; + + // False until the actor is destroyed. + bool mActorDestroyed; + + /** + * Transaction id of ShadowLayerForwarder. + * It is incremented by UpdateFwdTransactionId() in each BeginTransaction() + * call. + */ + uint64_t mFwdTransactionId; + + /** + * Hold TextureClients refs until end of their usages on host side. + * It defer calling of TextureClient recycle callback. + */ + std::unordered_map> + mTexturesWaitingNotifyNotUsed; + + nsCOMPtr mThread; + + AutoTArray, 2> mTexturePools; + + uint64_t mProcessToken; + + FixedSizeSmallShmemSectionAllocator* mSectionAllocator; + + // TextureClients that must be kept alive during async painting. This + // is only accessed on the main thread. + nsTArray> mTextureClientsForAsyncPaint; + + RefPtr mCanvasChild; +}; + +} // namespace layers +} // namespace mozilla + +#endif // mozilla_layers_CompositorBrigedChild_h -- cgit v1.2.3