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/*
* Copyright (c) 2016, Alliance for Open Media. All rights reserved
*
* This source code is subject to the terms of the BSD 2 Clause License and
* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
* was not distributed with this source code in the LICENSE file, you can
* obtain it at www.aomedia.org/license/software. If the Alliance for Open
* Media Patent License 1.0 was not distributed with this source code in the
* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
*/
#ifndef AOM_PORTS_AOM_TIMER_H_
#define AOM_PORTS_AOM_TIMER_H_
#include "./aom_config.h"
#include "aom/aom_integer.h"
#if CONFIG_OS_SUPPORT
#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 aom_usec_timer {
#if defined(_WIN32)
LARGE_INTEGER begin, end;
#else
struct timeval begin, end;
#endif
};
static INLINE void aom_usec_timer_start(struct aom_usec_timer *t) {
#if defined(_WIN32)
QueryPerformanceCounter(&t->begin);
#else
gettimeofday(&t->begin, NULL);
#endif
}
static INLINE void aom_usec_timer_mark(struct aom_usec_timer *t) {
#if defined(_WIN32)
QueryPerformanceCounter(&t->end);
#else
gettimeofday(&t->end, NULL);
#endif
}
static INLINE int64_t aom_usec_timer_elapsed(struct aom_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 aom_usec_timer {
void *dummy;
};
static INLINE void aom_usec_timer_start(struct aom_usec_timer *t) { (void)t; }
static INLINE void aom_usec_timer_mark(struct aom_usec_timer *t) { (void)t; }
static INLINE int aom_usec_timer_elapsed(struct aom_usec_timer *t) {
(void)t;
return 0;
}
#endif /* CONFIG_OS_SUPPORT */
#endif // AOM_PORTS_AOM_TIMER_H_
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