DRC | 2e7b76b | 2009-04-03 12:04:24 +0000 | [diff] [blame^] | 1 | /* Copyright (C)2004 Landmark Graphics Corporation |
| 2 | * Copyright (C)2005 Sun Microsystems, Inc. |
| 3 | * |
| 4 | * This library is free software and may be redistributed and/or modified under |
| 5 | * the terms of the wxWindows Library License, Version 3.1 or (at your option) |
| 6 | * any later version. The full license is in the LICENSE.txt file included |
| 7 | * with this distribution. |
| 8 | * |
| 9 | * This library is distributed in the hope that it will be useful, |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 12 | * wxWindows Library License for more details. |
| 13 | */ |
| 14 | |
| 15 | #ifndef __RRTIMER_H__ |
| 16 | #define __RRTIMER_H__ |
| 17 | |
| 18 | #ifdef __cplusplus |
| 19 | |
| 20 | #ifdef _WIN32 |
| 21 | #include <windows.h> |
| 22 | #else |
| 23 | #include <sys/time.h> |
| 24 | #endif |
| 25 | |
| 26 | class rrtimer |
| 27 | { |
| 28 | public: |
| 29 | |
| 30 | rrtimer(void) : t1(0.0) |
| 31 | { |
| 32 | #ifdef _WIN32 |
| 33 | highres=false; tick=0.001; |
| 34 | LARGE_INTEGER Frequency; |
| 35 | if(QueryPerformanceFrequency(&Frequency)!=0) |
| 36 | { |
| 37 | tick=(double)1.0/(double)(Frequency.QuadPart); |
| 38 | highres=true; |
| 39 | } |
| 40 | #endif |
| 41 | } |
| 42 | |
| 43 | void start(void) |
| 44 | { |
| 45 | t1=time(); |
| 46 | } |
| 47 | |
| 48 | double time(void) |
| 49 | { |
| 50 | #ifdef _WIN32 |
| 51 | if(highres) |
| 52 | { |
| 53 | LARGE_INTEGER Time; |
| 54 | QueryPerformanceCounter(&Time); |
| 55 | return((double)(Time.QuadPart)*tick); |
| 56 | } |
| 57 | else |
| 58 | return((double)GetTickCount()*tick); |
| 59 | #else |
| 60 | struct timeval __tv; |
| 61 | gettimeofday(&__tv, (struct timezone *)NULL); |
| 62 | return((double)(__tv.tv_sec)+(double)(__tv.tv_usec)*0.000001); |
| 63 | #endif |
| 64 | } |
| 65 | |
| 66 | double elapsed(void) |
| 67 | { |
| 68 | return time()-t1; |
| 69 | } |
| 70 | |
| 71 | private: |
| 72 | |
| 73 | #ifdef _WIN32 |
| 74 | bool highres; double tick; |
| 75 | #endif |
| 76 | double t1; |
| 77 | }; |
| 78 | |
| 79 | #endif // __cplusplus |
| 80 | |
| 81 | #ifdef _WIN32 |
| 82 | |
| 83 | #include <windows.h> |
| 84 | |
| 85 | __inline double rrtime(void) |
| 86 | { |
| 87 | LARGE_INTEGER Frequency, Time; |
| 88 | if(QueryPerformanceFrequency(&Frequency)!=0) |
| 89 | { |
| 90 | QueryPerformanceCounter(&Time); |
| 91 | return (double)Time.QuadPart/(double)Frequency.QuadPart; |
| 92 | } |
| 93 | else return (double)GetTickCount()*0.001; |
| 94 | } |
| 95 | |
| 96 | #else |
| 97 | |
| 98 | #include <sys/time.h> |
| 99 | |
| 100 | #ifdef sun |
| 101 | #define __inline inline |
| 102 | #endif |
| 103 | |
| 104 | static __inline double rrtime(void) |
| 105 | { |
| 106 | struct timeval __tv; |
| 107 | gettimeofday(&__tv, (struct timezone *)NULL); |
| 108 | return((double)__tv.tv_sec+(double)__tv.tv_usec*0.000001); |
| 109 | } |
| 110 | |
| 111 | #endif |
| 112 | |
| 113 | #endif |
| 114 | |