/* -*- 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 _include_gfx_ipc_CanvasManagerChild_h__ #define _include_gfx_ipc_CanvasManagerChild_h__ #include "mozilla/Atomics.h" #include "mozilla/gfx/PCanvasManagerChild.h" #include "mozilla/gfx/Types.h" #include "mozilla/ThreadLocal.h" #include <set> namespace mozilla { namespace dom { class CanvasRenderingContext2D; class ThreadSafeWorkerRef; class WorkerPrivate; } // namespace dom namespace layers { class CanvasChild; class ActiveResourceTracker; } // namespace layers namespace webgpu { class WebGPUChild; } // namespace webgpu namespace gfx { class DataSourceSurface; class CanvasManagerChild final : public PCanvasManagerChild { public: NS_INLINE_DECL_THREADSAFE_REFCOUNTING(CanvasManagerChild, override); explicit CanvasManagerChild(uint32_t aId); uint32_t Id() const { return mId; } already_AddRefed<DataSourceSurface> GetSnapshot( uint32_t aManagerId, int32_t aProtocolId, const Maybe<RemoteTextureOwnerId>& aOwnerId, SurfaceFormat aFormat, bool aPremultiply, bool aYFlip); void ActorDestroy(ActorDestroyReason aReason) override; static CanvasManagerChild* Get(); static CanvasManagerChild* MaybeGet(); static void Shutdown(); static bool CreateParent( mozilla::ipc::Endpoint<PCanvasManagerParent>&& aEndpoint); void AddShutdownObserver(dom::CanvasRenderingContext2D* aCanvas); void RemoveShutdownObserver(dom::CanvasRenderingContext2D* aCanvas); bool IsCanvasActive() { return mActive; } void EndCanvasTransaction(); void ClearCachedResources(); void DeactivateCanvas(); void BlockCanvas(); RefPtr<layers::CanvasChild> GetCanvasChild(); RefPtr<webgpu::WebGPUChild> GetWebGPUChild(); layers::ActiveResourceTracker* GetActiveResourceTracker(); private: ~CanvasManagerChild(); void DestroyInternal(); void Destroy(); RefPtr<mozilla::dom::ThreadSafeWorkerRef> mWorkerRef; RefPtr<layers::CanvasChild> mCanvasChild; RefPtr<webgpu::WebGPUChild> mWebGPUChild; UniquePtr<layers::ActiveResourceTracker> mActiveResourceTracker; std::set<dom::CanvasRenderingContext2D*> mActiveCanvas; const uint32_t mId; bool mActive = true; bool mBlocked = false; static MOZ_THREAD_LOCAL(CanvasManagerChild*) sLocalManager; static Atomic<uint32_t> sNextId; }; } // namespace gfx } // namespace mozilla #endif // _include_gfx_ipc_CanvasManagerChild_h__