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71 lines
2.2 KiB
C
71 lines
2.2 KiB
C
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/*
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* Copyright (C)2011, 2019 D. R. Commander. All Rights Reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* - Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* - Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* - Neither the name of the libjpeg-turbo Project nor the names of its
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* contributors may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS",
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifdef _WIN32
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#include <windows.h>
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#include "tjutil.h"
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static double getFreq(void)
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{
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LARGE_INTEGER freq;
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if (!QueryPerformanceFrequency(&freq)) return 0.0;
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return (double)freq.QuadPart;
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}
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static double f = -1.0;
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double getTime(void)
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{
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LARGE_INTEGER t;
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if (f < 0.0) f = getFreq();
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if (f == 0.0) return (double)GetTickCount() / 1000.;
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else {
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QueryPerformanceCounter(&t);
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return (double)t.QuadPart / f;
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}
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}
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#else
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#include <stdlib.h>
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#include <sys/time.h>
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#include "tjutil.h"
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double getTime(void)
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{
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struct timeval tv;
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if (gettimeofday(&tv, NULL) < 0) return 0.0;
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else return (double)tv.tv_sec + ((double)tv.tv_usec / 1000000.);
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}
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#endif
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