зеркало из https://github.com/mozilla/gecko-dev.git
55 строки
1.6 KiB
C++
55 строки
1.6 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_dom_ipc_VsyncParent_h
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#define mozilla_dom_ipc_VsyncParent_h
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#include "mozilla/dom/PVsyncParent.h"
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#include "mozilla/VsyncDispatcher.h"
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#include "nsCOMPtr.h"
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#include "mozilla/RefPtr.h"
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#include "VsyncSource.h"
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class nsIThread;
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namespace mozilla::dom {
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// Use PBackground thread in the main process to send vsync notifications to
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// content process. This actor will be released when its parent protocol calls
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// DeallocPVsyncParent().
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class VsyncParent final : public PVsyncParent, public VsyncObserver {
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friend class PVsyncParent;
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public:
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VsyncParent();
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void UpdateVsyncSource(const RefPtr<gfx::VsyncSource>& aVsyncSource);
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private:
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virtual ~VsyncParent() = default;
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virtual bool NotifyVsync(const VsyncEvent& aVsync) override;
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virtual void ActorDestroy(ActorDestroyReason aActorDestroyReason) override;
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mozilla::ipc::IPCResult RecvObserve();
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mozilla::ipc::IPCResult RecvUnobserve();
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void DispatchVsyncEvent(const VsyncEvent& aVsync);
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void UpdateVsyncRate();
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bool IsOnInitialThread();
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void AssertIsOnInitialThread();
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bool mObservingVsync;
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bool mDestroyed;
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nsCOMPtr<nsIThread> mInitialThread;
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RefPtr<gfx::VsyncSource> mVsyncSource;
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RefPtr<RefreshTimerVsyncDispatcher> mVsyncDispatcher;
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};
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} // namespace mozilla::dom
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#endif // mozilla_dom_ipc_VsyncParent_h
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