1ef4c721a0
Added Bullet SAP/MultiSAP support by Erwin Coumans (BulletSAPCompleteBoxPruningTest.*) AABB tree broadphase by Nathanael Presson (btDbvt.*, DbvtTest.*)
59 lines
1.8 KiB
C++
59 lines
1.8 KiB
C++
// ---------------------------------------------------------------------------
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//
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// @file AntPerfTimer.h
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// @brief A performance (precision) timer for benchs
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// @author Philippe Decaudin - http://www.antisphere.com
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// @license This file is part of the AntTweakBar library.
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// Copyright © 2005, 2006 Philippe Decaudin.
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// For conditions of distribution and use, see License.txt
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//
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// notes: TAB=4
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// No cpp file is needed, everything is defined in this header
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//
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// ---------------------------------------------------------------------------
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#if !defined ANT_PERF_TIMER_INCLUDED
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#define ANT_PERF_TIMER_INCLUDED
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#ifndef __cplusplus
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# error This is a C++ header
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#endif // __cplusplus
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#if defined(WIN32) || defined(WIN64) || defined(_WIN32) || defined(_WIN64)
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#include <windows.h>
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#include <tchar.h>
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struct PerfTimer
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{
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__forceinline PerfTimer() { if( !QueryPerformanceFrequency(&Freq) ) MessageBox(NULL, _T("Precision timer not supported"), _T("Problem"), MB_ICONEXCLAMATION); Reset(); }
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__forceinline void Reset() { QueryPerformanceCounter(&Start); }
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__forceinline double GetTime() { if( QueryPerformanceCounter(&End) ) return ((double)End.QuadPart - (double)Start.QuadPart)/((double)Freq.QuadPart); else return 0; }
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protected:
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LARGE_INTEGER Start, End, Freq;
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};
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#else // !_WIN (-> LINUX)
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#include <sys/time.h>
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#include <unistd.h>
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struct PerfTimer
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{
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inline PerfTimer() { Reset(); }
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inline void Reset() { gettimeofday(&Start, &TZ); }
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inline double GetTime() { gettimeofday(&End,&TZ);
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double t1 = (double)Start.tv_sec + (double)Start.tv_usec/(1000*1000);
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double t2 = (double)End.tv_sec + (double)End.tv_usec/(1000*1000);
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return t2-t1; }
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protected:
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struct timeval Start, End;
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struct timezone TZ;
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};
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#endif // _WIN
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#endif // ANT_PERF_TIMER_INCLUDED
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