70 lines
1.8 KiB
C
70 lines
1.8 KiB
C
/*
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Copyright (C) 2004-2008 Grame
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include "JackTime.h"
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#include "JackError.h"
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static LARGE_INTEGER _jack_freq;
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static UINT gPeriod = 0;
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SERVER_EXPORT void JackSleep(long usec)
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{
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Sleep(usec / 1000);
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}
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SERVER_EXPORT void InitTime()
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{
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TIMECAPS caps;
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QueryPerformanceFrequency(&_jack_freq);
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if (timeGetDevCaps(&caps, sizeof(TIMECAPS)) != TIMERR_NOERROR) {
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jack_error("InitTime : could not get timer device");
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} else {
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gPeriod = caps.wPeriodMin;
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if (timeBeginPeriod(gPeriod) != TIMERR_NOERROR) {
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jack_error("InitTime : could not set minimum timer");
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gPeriod = 0;
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} else {
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jack_log("InitTime : multimedia timer resolution set to %d milliseconds", gPeriod);
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}
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}
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}
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SERVER_EXPORT void EndTime()
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{
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if (gPeriod > 0) {
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timeEndPeriod(gPeriod);
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}
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}
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SERVER_EXPORT jack_time_t GetMicroSeconds(void)
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{
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LARGE_INTEGER t1;
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QueryPerformanceCounter(&t1);
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return (jack_time_t)(((double)t1.QuadPart) / ((double)_jack_freq.QuadPart) * 1000000.0);
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}
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void SetClockSource(jack_timer_type_t source)
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{}
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const char* ClockSourceName(jack_timer_type_t source)
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{
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return "";
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}
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