The Tor Browser / file comparison
comparison: media/libvpx/vpx_ports/vpx_timer.h
media/libvpx/vpx_ports/vpx_timer.h
- branch
- TOR_BUG_9701
- changeset 10
- ac0c01689b40
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| -1:000000000000 | 0:1114bfd59bfa |
|---|---|
| 1 /* | |
| 2 * Copyright (c) 2010 The WebM project authors. All Rights Reserved. | |
| 3 * | |
| 4 * Use of this source code is governed by a BSD-style license | |
| 5 * that can be found in the LICENSE file in the root of the source | |
| 6 * tree. An additional intellectual property rights grant can be found | |
| 7 * in the file PATENTS. All contributing project authors may | |
| 8 * be found in the AUTHORS file in the root of the source tree. | |
| 9 */ | |
| 10 | |
| 11 | |
| 12 #ifndef VPX_TIMER_H | |
| 13 #define VPX_TIMER_H | |
| 14 #include "vpx/vpx_integer.h" | |
| 15 | |
| 16 #if CONFIG_OS_SUPPORT | |
| 17 | |
| 18 #if defined(_WIN32) | |
| 19 /* | |
| 20 * Win32 specific includes | |
| 21 */ | |
| 22 #ifndef WIN32_LEAN_AND_MEAN | |
| 23 #define WIN32_LEAN_AND_MEAN | |
| 24 #endif | |
| 25 #include <windows.h> | |
| 26 #else | |
| 27 /* | |
| 28 * POSIX specific includes | |
| 29 */ | |
| 30 #include <sys/time.h> | |
| 31 | |
| 32 /* timersub is not provided by msys at this time. */ | |
| 33 #ifndef timersub | |
| 34 #define timersub(a, b, result) \ | |
| 35 do { \ | |
| 36 (result)->tv_sec = (a)->tv_sec - (b)->tv_sec; \ | |
| 37 (result)->tv_usec = (a)->tv_usec - (b)->tv_usec; \ | |
| 38 if ((result)->tv_usec < 0) { \ | |
| 39 --(result)->tv_sec; \ | |
| 40 (result)->tv_usec += 1000000; \ | |
| 41 } \ | |
| 42 } while (0) | |
| 43 #endif | |
| 44 #endif | |
| 45 | |
| 46 | |
| 47 struct vpx_usec_timer { | |
| 48 #if defined(_WIN32) | |
| 49 LARGE_INTEGER begin, end; | |
| 50 #else | |
| 51 struct timeval begin, end; | |
| 52 #endif | |
| 53 }; | |
| 54 | |
| 55 | |
| 56 static void | |
| 57 vpx_usec_timer_start(struct vpx_usec_timer *t) { | |
| 58 #if defined(_WIN32) | |
| 59 QueryPerformanceCounter(&t->begin); | |
| 60 #else | |
| 61 gettimeofday(&t->begin, NULL); | |
| 62 #endif | |
| 63 } | |
| 64 | |
| 65 | |
| 66 static void | |
| 67 vpx_usec_timer_mark(struct vpx_usec_timer *t) { | |
| 68 #if defined(_WIN32) | |
| 69 QueryPerformanceCounter(&t->end); | |
| 70 #else | |
| 71 gettimeofday(&t->end, NULL); | |
| 72 #endif | |
| 73 } | |
| 74 | |
| 75 | |
| 76 static int64_t | |
| 77 vpx_usec_timer_elapsed(struct vpx_usec_timer *t) { | |
| 78 #if defined(_WIN32) | |
| 79 LARGE_INTEGER freq, diff; | |
| 80 | |
| 81 diff.QuadPart = t->end.QuadPart - t->begin.QuadPart; | |
| 82 | |
| 83 QueryPerformanceFrequency(&freq); | |
| 84 return diff.QuadPart * 1000000 / freq.QuadPart; | |
| 85 #else | |
| 86 struct timeval diff; | |
| 87 | |
| 88 timersub(&t->end, &t->begin, &diff); | |
| 89 return diff.tv_sec * 1000000 + diff.tv_usec; | |
| 90 #endif | |
| 91 } | |
| 92 | |
| 93 #else /* CONFIG_OS_SUPPORT = 0*/ | |
| 94 | |
| 95 /* Empty timer functions if CONFIG_OS_SUPPORT = 0 */ | |
| 96 #ifndef timersub | |
| 97 #define timersub(a, b, result) | |
| 98 #endif | |
| 99 | |
| 100 struct vpx_usec_timer { | |
| 101 void *dummy; | |
| 102 }; | |
| 103 | |
| 104 static void | |
| 105 vpx_usec_timer_start(struct vpx_usec_timer *t) { } | |
| 106 | |
| 107 static void | |
| 108 vpx_usec_timer_mark(struct vpx_usec_timer *t) { } | |
| 109 | |
| 110 static long | |
| 111 vpx_usec_timer_elapsed(struct vpx_usec_timer *t) { | |
| 112 return 0; | |
| 113 } | |
| 114 | |
| 115 #endif /* CONFIG_OS_SUPPORT */ | |
| 116 | |
| 117 #endif |
