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-rw-r--r--ftnoir_tracker_pt/timer.cpp66
1 files changed, 66 insertions, 0 deletions
diff --git a/ftnoir_tracker_pt/timer.cpp b/ftnoir_tracker_pt/timer.cpp
new file mode 100644
index 00000000..363b5b09
--- /dev/null
+++ b/ftnoir_tracker_pt/timer.cpp
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+/* Copyright (c) 2012 Patrick Ruoff
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ */
+
+#include "timer.h"
+
+#include <stdlib.h>
+
+// ----------------------------------------------------------------------------
+Timer::Timer()
+: startTime(0), endTime(0), running(false)
+{
+#ifdef WIN32
+ QueryPerformanceFrequency(&frequency);
+ startCount.QuadPart = 0;
+ endCount.QuadPart = 0;
+#else
+ startCount.tv_sec = startCount.tv_usec = 0;
+ endCount.tv_sec = endCount.tv_usec = 0;
+#endif
+}
+
+
+void Timer::start()
+{
+#ifdef WIN32
+ QueryPerformanceCounter(&startCount);
+#else
+ gettimeofday(&startCount, NULL);
+#endif
+ running = true;
+}
+
+
+void Timer::stop()
+{
+#ifdef WIN32
+ QueryPerformanceCounter(&endCount);
+#else
+ gettimeofday(&endCount, NULL);
+#endif
+ running = false;
+}
+
+
+double Timer::elapsed()
+{
+#ifdef WIN32
+ if (running)
+ QueryPerformanceCounter(&endCount);
+
+ startTime = startCount.QuadPart * (1e3 / frequency.QuadPart);
+ endTime = endCount.QuadPart * (1e3 / frequency.QuadPart);
+#else
+ if(!stopped)
+ gettimeofday(&endCount, NULL);
+
+ startTime = (startCount.tv_sec * 1e3) + startCount.tv_usec;
+ endTime = (endCount.tv_sec * 1e3) + endCount.tv_usec;
+#endif
+
+ return endTime - startTime;
+} \ No newline at end of file