74 lines
1.9 KiB
C
74 lines
1.9 KiB
C
/*
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This file is part of Warzone 2100.
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Copyright (C) 2008-2009 Warzone Resurrection Project
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Warzone 2100 is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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Warzone 2100 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 General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Warzone 2100; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "timer.h"
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#include "lib/framework/frame.h"
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#if defined(WZ_OS_UNIX)
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# include <sys/time.h>
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#endif
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static double startTimeInMicroSec = 0; // starting time in microseconds
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static double endTimeInMicroSec = 0; // ending time in microseconds
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static BOOL stopped = false; // stop flag
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static struct timeval startCount;
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static struct timeval endCount;
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// Uses the highest resolution timers avail on windows & linux
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void Timer_Init(void)
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{
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startCount.tv_sec = startCount.tv_usec = 0;
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endCount.tv_sec = endCount.tv_usec = 0;
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stopped = false;
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startTimeInMicroSec = 0;
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endTimeInMicroSec = 0;
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}
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void Timer_start(void)
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{
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stopped = false; // reset stop flag
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gettimeofday(&startCount, NULL);
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}
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void Timer_stop(void)
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{
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stopped = true; // set timer stopped flag
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gettimeofday(&endCount, NULL);
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}
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double Timer_getElapsedMicroSecs(void)
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{
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if (!stopped)
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{
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gettimeofday(&endCount, NULL);
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}
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startTimeInMicroSec = (startCount.tv_sec * 1000000.0) + startCount.tv_usec;
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endTimeInMicroSec = (endCount.tv_sec * 1000000.0) + endCount.tv_usec;
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return endTimeInMicroSec - startTimeInMicroSec;
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}
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double Timer_getElapsedMilliSecs(void)
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{
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return Timer_getElapsedMicroSecs() * 0.001;
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}
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