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/* -*- 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 */
#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 {
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();
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__