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/*
* Copyright (C) 2015-2018 Team Kodi
* This file is part of Kodi - https://kodi.tv
*
* SPDX-License-Identifier: GPL-2.0-or-later
* See LICENSES/README.md for more information.
*/
#include "VideoSyncAndroid.h"
#include "ServiceBroker.h"
#include "cores/VideoPlayer/VideoReferenceClock.h"
#include "utils/MathUtils.h"
#include "utils/TimeUtils.h"
#include "utils/XTimeUtils.h"
#include "utils/log.h"
#include "windowing/GraphicContext.h"
#include "windowing/WinSystem.h"
#include "platform/android/activity/XBMCApp.h"
bool CVideoSyncAndroid::Setup(PUPDATECLOCK func)
{
CLog::Log(LOGDEBUG, "CVideoSyncAndroid::{} setting up", __FUNCTION__);
//init the vblank timestamp
m_LastVBlankTime = CurrentHostCounter();
UpdateClock = func;
m_abortEvent.Reset();
CXBMCApp::Get().InitFrameCallback(this);
CServiceBroker::GetWinSystem()->Register(this);
return true;
}
void CVideoSyncAndroid::Run(CEvent& stopEvent)
{
XbmcThreads::CEventGroup waitGroup{&stopEvent, &m_abortEvent};
waitGroup.wait();
}
void CVideoSyncAndroid::Cleanup()
{
CLog::Log(LOGDEBUG, "CVideoSyncAndroid::{} cleaning up", __FUNCTION__);
CXBMCApp::Get().DeinitFrameCallback();
CServiceBroker::GetWinSystem()->Unregister(this);
}
float CVideoSyncAndroid::GetFps()
{
m_fps = CServiceBroker::GetWinSystem()->GetGfxContext().GetFPS();
CLog::Log(LOGDEBUG, "CVideoSyncAndroid::{} Detected refreshrate: {:f} hertz", __FUNCTION__,
m_fps);
return m_fps;
}
void CVideoSyncAndroid::OnResetDisplay()
{
m_abortEvent.Set();
}
void CVideoSyncAndroid::FrameCallback(int64_t frameTimeNanos)
{
int NrVBlanks;
double VBlankTime;
//calculate how many vblanks happened
VBlankTime = (double)(frameTimeNanos - m_LastVBlankTime) / (double)CurrentHostFrequency();
NrVBlanks = MathUtils::round_int(VBlankTime * static_cast<double>(m_fps));
//save the timestamp of this vblank so we can calculate how many happened next time
m_LastVBlankTime = frameTimeNanos;
//update the vblank timestamp, update the clock and send a signal that we got a vblank
UpdateClock(NrVBlanks, frameTimeNanos, m_refClock);
}
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