2 Copyright (C) 2004-2008 Grame
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU Lesser General Public License as published by
6 the Free Software Foundation; either version 2.1 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU Lesser General Public License for more details.
14 You should have received a copy of the GNU Lesser General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
22 #include "JackError.h"
24 static LARGE_INTEGER _jack_freq
;
25 static UINT gPeriod
= 0;
27 SERVER_EXPORT
void JackSleep(long usec
)
32 SERVER_EXPORT
void InitTime()
34 QueryPerformanceFrequency(&_jack_freq
);
36 if (timeGetDevCaps(&caps
, sizeof(TIMECAPS
)) != TIMERR_NOERROR
) {
37 jack_error("InitTime : could not get timer device");
39 gPeriod
= caps
.wPeriodMin
;
40 if (timeBeginPeriod(gPeriod
) != TIMERR_NOERROR
) {
41 jack_error("InitTime : could not set minimum timer");
44 jack_info("InitTime : multimedia timer resolution set to %d milliseconds", gPeriod
);
49 SERVER_EXPORT
void EndTime()
52 timeEndPeriod(gPeriod
);
56 SERVER_EXPORT jack_time_t
GetMicroSeconds(void)
59 QueryPerformanceCounter(&t1
);
60 return (jack_time_t
)(((double)t1
.QuadPart
) / ((double)_jack_freq
.QuadPart
) * 1000000.0);
63 void SetClockSource(jack_timer_type_t source
)
66 const char* ClockSourceName(jack_timer_type_t source
)