text: #pragma once
  /*
   *      Copyright (C) 2005-2014 Team Kodi
   *      http://kodi.tv
   *
   *  This Program is free software; you can redistribute it and/or modify
   *  it under the terms of the GNU General Public License as published by
   *  the Free Software Foundation; either version 2, or (at your option)
   *  any later version.
   *
   *  This Program is distributed in the hope that it will be useful,
   *  but WITHOUT ANY WARRANTY; without even the implied warranty of
   *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
   *  GNU General Public License for more details.
   *
   *  You should have received a copy of the GNU General Public License
   *  along with XBMC; see the file COPYING.  If not, see
   *  <http://www.gnu.org/licenses/>.
   *
   */
  
  #if defined(TARGET_DARWIN_OSX)
  #include "VideoSync.h"
  #include "guilib/DispResource.h"
  #include "threads/Event.h"
  
  class CVideoSyncOsx : public CVideoSync, IDispResource
  {
  public:
  
    CVideoSyncOsx() : m_LastVBlankTime(0), m_displayLost(false), m_displayReset(false){}
    
    // CVideoSync interface
    virtual bool Setup(PUPDATECLOCK func);
    virtual void Run(volatile bool& stop);
    virtual void Cleanup();
    virtual float GetFps();
    virtual void RefreshChanged();
    
    // IDispResource interface
    virtual void OnLostDevice();
    virtual void OnResetDevice();
  
    // used in the displaylink callback
    void VblankHandler(int64_t nowtime, uint32_t timebase);
    
  private:
    virtual bool InitDisplayLink();
    virtual void DeinitDisplayLink();
  
    int64_t m_LastVBlankTime;  //timestamp of the last vblank, used for calculating how many vblanks happened
    volatile bool m_displayLost;
    volatile bool m_displayReset;
    CEvent m_lostEvent;
  };
  
  #endif// TARGET_DARWIN_OSX
  