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"

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)
{
    return timeGetTime() * 1000;
}

void mp_raw_time_init(void)
{
    // request 1ms timer resolution
    timeBeginPeriod(1);
}