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51 lines
1.7 KiB
C++
51 lines
1.7 KiB
C++
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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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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#include "mozilla/RefPtr.h"
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#include "mozilla/TimeStamp.h"
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#include "nsISupportsImpl.h"
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#include "nsTArray.h"
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namespace mozilla {
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class VsyncDispatcher;
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namespace gfx {
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// Controls how and when to enable/disable vsync. Lives as long as the
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// gfxPlatform does on the parent process
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class VsyncSource
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{
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NS_INLINE_DECL_THREADSAFE_REFCOUNTING(VsyncSource)
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public:
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// Controls vsync unique to each display and unique on each platform
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class Display {
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public:
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Display();
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virtual ~Display();
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void AddVsyncDispatcher(mozilla::VsyncDispatcher* aVsyncDispatcher);
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void RemoveVsyncDispatcher(mozilla::VsyncDispatcher* aVsyncDispatcher);
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// Notified when this display's vsync occurs, on the hardware vsync thread
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void NotifyVsync(mozilla::TimeStamp aVsyncTimestamp);
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// These should all only be called on the main thread
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virtual void EnableVsync() = 0;
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virtual void DisableVsync() = 0;
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virtual bool IsVsyncEnabled() = 0;
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private:
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nsTArray<nsRefPtr<mozilla::VsyncDispatcher>> mVsyncDispatchers;
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}; // end Display
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void AddVsyncDispatcher(mozilla::VsyncDispatcher* aVsyncDispatcher);
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void RemoveVsyncDispatcher(mozilla::VsyncDispatcher* aVsyncDispatcher);
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protected:
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virtual Display& GetGlobalDisplay() = 0; // Works across all displays
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virtual Display& FindDisplay(mozilla::VsyncDispatcher* aVsyncDispatcher);
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virtual ~VsyncSource() {}
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}; // VsyncSource
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} // gfx
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} // mozilla
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