mirror of https://github.com/mpv-player/mpv
58 lines
1.6 KiB
C
58 lines
1.6 KiB
C
/*
|
|
* 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 <sys/time.h>
|
|
#include <mmsystem.h>
|
|
#include <stdlib.h>
|
|
#include "timer.h"
|
|
|
|
void mp_sleep_us(int64_t us)
|
|
{
|
|
if (us < 0)
|
|
return;
|
|
// 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 (us < 1000)
|
|
us = 1000;
|
|
Sleep(us / 1000);
|
|
}
|
|
|
|
uint64_t mp_raw_time_us(void)
|
|
{
|
|
struct timeval tv;
|
|
gettimeofday(&tv,NULL);
|
|
return tv.tv_sec * 1000000LL + tv.tv_usec;
|
|
}
|
|
|
|
static void restore_timer(void)
|
|
{
|
|
// The MSDN documents that begin/end "must" be matched. This satisfies
|
|
// this requirement.
|
|
timeEndPeriod(1);
|
|
}
|
|
|
|
void mp_raw_time_init(void)
|
|
{
|
|
timeBeginPeriod(1); // request 1ms timer resolution
|
|
atexit(restore_timer);
|
|
}
|