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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 http://mozilla.org/MPL/2.0/. */
#ifndef mozilla_dom_ipc_VsyncParent_h
#define mozilla_dom_ipc_VsyncParent_h
#include "mozilla/dom/PVsyncParent.h"
#include "mozilla/VsyncDispatcher.h"
#include "nsCOMPtr.h"
#include "mozilla/RefPtr.h"
#include "VsyncSource.h"
class nsIThread;
namespace mozilla::dom {
// Use PBackground thread in the main process to send vsync notifications to
// content process. This actor will be released when its parent protocol calls
// DeallocPVsyncParent().
class VsyncParent final : public PVsyncParent, public VsyncObserver {
friend class PVsyncParent;
public:
VsyncParent();
void UpdateVsyncSource(const RefPtr<gfx::VsyncSource>& aVsyncSource);
private:
virtual ~VsyncParent() = default;
virtual bool NotifyVsync(const VsyncEvent& aVsync) override;
virtual void ActorDestroy(ActorDestroyReason aActorDestroyReason) override;
mozilla::ipc::IPCResult RecvObserve();
mozilla::ipc::IPCResult RecvUnobserve();
void DispatchVsyncEvent(const VsyncEvent& aVsync);
void UpdateVsyncRate();
bool IsOnInitialThread();
void AssertIsOnInitialThread();
bool mObservingVsync;
bool mDestroyed;
nsCOMPtr<nsIThread> mInitialThread;
RefPtr<gfx::VsyncSource> mVsyncSource;
RefPtr<RefreshTimerVsyncDispatcher> mVsyncDispatcher;
};
} // namespace mozilla::dom
#endif // mozilla_dom_ipc_VsyncParent_h
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