mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-23 04:41:11 +00:00
f3ebfed97b
The strong reference from CanvasManagerChild to WebGPUChild was never cleared when the WebGPUChild dies, meaning that it would form a strong cycle through the `Manager()` reference. Under the new system, the WebGPUChild actor is kept alive by the IPC connection, and will be torn down when the IPC connection dies. Differential Revision: https://phabricator.services.mozilla.com/D198625
84 lines
2.4 KiB
C++
84 lines
2.4 KiB
C++
/* -*- 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, 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__
|