xbmc/windowing/X11/VideoSyncOML.cpp

   1 /*
   2  *  Copyright (C) 2005-2018 Team Kodi
   3  *  This file is part of Kodi - https://kodi.tv
   4  *
   5  *  SPDX-License-Identifier: GPL-2.0-or-later
   6  *  See LICENSES/README.md for more information.
   7  */
   8
   9 #include "VideoSyncOML.h"
  10
  11 #include "cores/VideoPlayer/VideoReferenceClock.h"
  12 #include "utils/TimeUtils.h"
  13 #include "utils/log.h"
  14 #include "windowing/GraphicContext.h"
  15 #include "windowing/X11/WinSystemX11GLContext.h"
  16
  17 #include <unistd.h>
  18
  19 using namespace KODI::WINDOWING::X11;
  20
  21 bool CVideoSyncOML::Setup()
  22 {
  23   CLog::Log(LOGDEBUG, "CVideoSyncOML::{} - setting up OML", __FUNCTION__);
  24
  25   m_abort = false;
  26
  27   static_cast<CWinSystemX11*>(&m_winSystem)->Register(this);
  28
  29   return true;
  30 }
  31
  32 void CVideoSyncOML::Run(CEvent& stopEvent)
  33 {
  34   uint64_t interval, timeSinceVblank, msc;
  35
  36   timeSinceVblank = m_winSystem.GetVblankTiming(msc, interval);
  37
  38   while (!stopEvent.Signaled() && !m_abort)
  39   {
  40     if (interval == 0)
  41     {
  42       usleep(10000);
  43     }
  44     else
  45     {
  46       usleep(interval - timeSinceVblank + 1000);
  47     }
  48     uint64_t newMsc;
  49     timeSinceVblank = m_winSystem.GetVblankTiming(newMsc, interval);
  50
  51     if (newMsc == msc)
  52     {
  53       newMsc++;
  54     }
  55     else if (newMsc < msc)
  56     {
  57       timeSinceVblank = interval;
  58       continue;
  59     }
  60
  61     uint64_t now = CurrentHostCounter();
  62     m_refClock->UpdateClock(newMsc - msc, now);
  63     msc = newMsc;
  64   }
  65 }
  66
  67 void CVideoSyncOML::Cleanup()
  68 {
  69   m_winSystem.Unregister(this);
  70 }
  71
  72 void CVideoSyncOML::OnResetDisplay()
  73 {
  74   m_abort = true;
  75 }
  76
  77 float CVideoSyncOML::GetFps()
  78 {
  79   m_fps = m_winSystem.GetGfxContext().GetFPS();
  80   return m_fps;
  81 }
  82