mpv/osdep/timer-win2.c

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/*
* precise timer routines for Windows
*
* This file is part of MPlayer.
*
* MPlayer 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 of the License, or
* (at your option) any later version.
*
* MPlayer 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 MPlayer; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <windows.h>
#include <mmsystem.h>
#include "timer.h"
const char *timer_name = "Windows native";
// Returns current time in microseconds
unsigned int GetTimer(void)
{
return timeGetTime() * 1000;
}
// Returns current time in milliseconds
unsigned int GetTimerMS(void)
{
return timeGetTime() ;
}
int usec_sleep(int usec_delay){
// Sleep(0) won't sleep for one clocktick as the unix usleep
// instead it will only make the thread ready
// it may take some time until it actually starts to run again
if(usec_delay<1000)usec_delay=1000;
Sleep( usec_delay/1000);
return 0;
}
static DWORD RelativeTime = 0;
float GetRelativeTime(void)
{
DWORD t, r;
t = GetTimer();
r = t - RelativeTime;
RelativeTime = t;
return (float) r *0.000001F;
}
void InitTimer(void)
{
GetRelativeTime();
}