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66 lines
2.1 KiB
66 lines
2.1 KiB
/* |
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* Copyright (C)2011 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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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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{ |
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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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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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