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-rw-r--r--media/libvpx/vpx_ports/vpx_timer.h120
1 files changed, 120 insertions, 0 deletions
diff --git a/media/libvpx/vpx_ports/vpx_timer.h b/media/libvpx/vpx_ports/vpx_timer.h
new file mode 100644
index 000000000..dd98e291c
--- /dev/null
+++ b/media/libvpx/vpx_ports/vpx_timer.h
@@ -0,0 +1,120 @@
+/*
+ * 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
+
+#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_