112 строки
2.7 KiB
C
112 строки
2.7 KiB
C
/*
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* Copyright (c) 2016, Alliance for Open Media. All rights reserved
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*
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* This source code is subject to the terms of the BSD 2 Clause License and
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* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
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* was not distributed with this source code in the LICENSE file, you can
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* obtain it at www.aomedia.org/license/software. If the Alliance for Open
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* Media Patent License 1.0 was not distributed with this source code in the
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* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
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*/
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#ifndef AOM_PORTS_AOM_TIMER_H_
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#define AOM_PORTS_AOM_TIMER_H_
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#include "./aom_config.h"
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#include "aom/aom_integer.h"
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#if CONFIG_OS_SUPPORT
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#if defined(_WIN32)
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/*
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* Win32 specific includes
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*/
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#ifndef WIN32_LEAN_AND_MEAN
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#define WIN32_LEAN_AND_MEAN
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#endif
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#include <windows.h>
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#else
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/*
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* POSIX specific includes
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*/
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#include <sys/time.h>
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/* timersub is not provided by msys at this time. */
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#ifndef timersub
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#define timersub(a, b, result) \
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do { \
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(result)->tv_sec = (a)->tv_sec - (b)->tv_sec; \
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(result)->tv_usec = (a)->tv_usec - (b)->tv_usec; \
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if ((result)->tv_usec < 0) { \
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--(result)->tv_sec; \
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(result)->tv_usec += 1000000; \
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} \
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} while (0)
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#endif
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#endif
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struct aom_usec_timer {
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#if defined(_WIN32)
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LARGE_INTEGER begin, end;
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#else
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struct timeval begin, end;
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#endif
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};
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static INLINE void aom_usec_timer_start(struct aom_usec_timer *t) {
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#if defined(_WIN32)
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QueryPerformanceCounter(&t->begin);
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#else
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gettimeofday(&t->begin, NULL);
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#endif
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}
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static INLINE void aom_usec_timer_mark(struct aom_usec_timer *t) {
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#if defined(_WIN32)
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QueryPerformanceCounter(&t->end);
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#else
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gettimeofday(&t->end, NULL);
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#endif
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}
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static INLINE int64_t aom_usec_timer_elapsed(struct aom_usec_timer *t) {
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#if defined(_WIN32)
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LARGE_INTEGER freq, diff;
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diff.QuadPart = t->end.QuadPart - t->begin.QuadPart;
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QueryPerformanceFrequency(&freq);
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return diff.QuadPart * 1000000 / freq.QuadPart;
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#else
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struct timeval diff;
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timersub(&t->end, &t->begin, &diff);
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return diff.tv_sec * 1000000 + diff.tv_usec;
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#endif
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}
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#else /* CONFIG_OS_SUPPORT = 0*/
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/* Empty timer functions if CONFIG_OS_SUPPORT = 0 */
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#ifndef timersub
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#define timersub(a, b, result)
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#endif
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struct aom_usec_timer {
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void *dummy;
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};
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static INLINE void aom_usec_timer_start(struct aom_usec_timer *t) { (void)t; }
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static INLINE void aom_usec_timer_mark(struct aom_usec_timer *t) { (void)t; }
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static INLINE int aom_usec_timer_elapsed(struct aom_usec_timer *t) {
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(void)t;
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return 0;
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}
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#endif /* CONFIG_OS_SUPPORT */
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#endif // AOM_PORTS_AOM_TIMER_H_
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