| /* |
| * Copyright (c) 2010 The WebM project authors. All Rights Reserved. |
| * |
| * Use of this source code is governed by a BSD-style license |
| * that can be found in the LICENSE file in the root of the source |
| * tree. An additional intellectual property rights grant can be found |
| * in the file PATENTS. All contributing project authors may |
| * be found in the AUTHORS file in the root of the source tree. |
| */ |
| |
| |
| #ifndef VPX_PORTS_VPX_TIMER_H_ |
| #define VPX_PORTS_VPX_TIMER_H_ |
| |
| #include "./vpx_config.h" |
| |
| #include "vpx/vpx_integer.h" |
| |
| #if CONFIG_OS_SUPPORT || defined(__ORBIS__) |
| |
| #if defined(_WIN32) |
| /* |
| * Win32 specific includes |
| */ |
| #ifndef WIN32_LEAN_AND_MEAN |
| #define WIN32_LEAN_AND_MEAN |
| #endif |
| #include <windows.h> |
| #else |
| /* |
| * POSIX specific includes |
| */ |
| #include <sys/time.h> |
| |
| /* timersub is not provided by msys at this time. */ |
| #ifndef timersub |
| #define timersub(a, b, result) \ |
| do { \ |
| (result)->tv_sec = (a)->tv_sec - (b)->tv_sec; \ |
| (result)->tv_usec = (a)->tv_usec - (b)->tv_usec; \ |
| if ((result)->tv_usec < 0) { \ |
| --(result)->tv_sec; \ |
| (result)->tv_usec += 1000000; \ |
| } \ |
| } while (0) |
| #endif |
| #endif |
| |
| |
| struct vpx_usec_timer { |
| #if defined(_WIN32) |
| LARGE_INTEGER begin, end; |
| #else |
| struct timeval begin, end; |
| #endif |
| }; |
| |
| |
| static INLINE void |
| vpx_usec_timer_start(struct vpx_usec_timer *t) { |
| #if defined(_WIN32) |
| QueryPerformanceCounter(&t->begin); |
| #else |
| gettimeofday(&t->begin, NULL); |
| #endif |
| } |
| |
| |
| static INLINE void |
| vpx_usec_timer_mark(struct vpx_usec_timer *t) { |
| #if defined(_WIN32) |
| QueryPerformanceCounter(&t->end); |
| #else |
| gettimeofday(&t->end, NULL); |
| #endif |
| } |
| |
| |
| static INLINE int64_t |
| vpx_usec_timer_elapsed(struct vpx_usec_timer *t) { |
| #if defined(_WIN32) |
| LARGE_INTEGER freq, diff; |
| |
| diff.QuadPart = t->end.QuadPart - t->begin.QuadPart; |
| |
| QueryPerformanceFrequency(&freq); |
| return diff.QuadPart * 1000000 / freq.QuadPart; |
| #else |
| struct timeval diff; |
| |
| timersub(&t->end, &t->begin, &diff); |
| return diff.tv_sec * 1000000 + diff.tv_usec; |
| #endif |
| } |
| |
| #else /* CONFIG_OS_SUPPORT = 0*/ |
| |
| /* Empty timer functions if CONFIG_OS_SUPPORT = 0 */ |
| #ifndef timersub |
| #define timersub(a, b, result) |
| #endif |
| |
| struct vpx_usec_timer { |
| void *dummy; |
| }; |
| |
| static INLINE void |
| vpx_usec_timer_start(struct vpx_usec_timer *t) { } |
| |
| static INLINE void |
| vpx_usec_timer_mark(struct vpx_usec_timer *t) { } |
| |
| static INLINE int |
| vpx_usec_timer_elapsed(struct vpx_usec_timer *t) { |
| return 0; |
| } |
| |
| #endif /* CONFIG_OS_SUPPORT */ |
| |
| #endif // VPX_PORTS_VPX_TIMER_H_ |