/* -*- 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"
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(dom::ThreadSafeWorkerRef* aWorkerRef,
uint32_t aId);
uint32_t Id()
const {
return mId; }
already_AddRefed<DataSourceSurface> GetSnapshot(
uint32_t aManagerId, int32_t aProtocolId,
const Maybe<RemoteTextureOwnerId>& aOwnerId,
const Maybe<RawId>& aCommandEncoderId, 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);
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;
UniquePtr<layers::ActiveResourceTracker> mActiveResourceTracker;
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__
