Upload New File

timer.h

+#ifndef TIMER_H
+#define TIMER_H
+
+#include <stdlib.h>
+
+#ifdef WIN32
+  #define WIN32_LEAN_AND_MEAN
+  #include <windows.h>
+#else
+  #ifndef __USE_BSD
+    #define __USE_BSD
+  #endif
+  #include <sys/time.h>
+#endif
+
+#ifdef WIN32
+double PCFreq = 0.0;
+__int64 timerStart = 0;
+#else
+struct timeval timerStart;
+#endif
+
+void StartTimer()
+{
+#ifdef WIN32
+  LARGE_INTEGER li;
+  if(!QueryPerformanceFrequency(&li))
+    printf("QueryPerformanceFrequency failed!\n");
+
+  PCFreq = (double)li.QuadPart/1000.0;
+
+  QueryPerformanceCounter(&li);
+  timerStart = li.QuadPart;
+#else
+  gettimeofday(&timerStart, NULL);
+#endif
+}
+
+// time elapsed in ms
+double GetTimer()
+{
+#ifdef WIN32
+  LARGE_INTEGER li;
+  QueryPerformanceCounter(&li);
+  return (double)(li.QuadPart-timerStart)/PCFreq;
+#else
+  struct timeval timerStop, timerElapsed;
+  gettimeofday(&timerStop, NULL);
+  timersub(&timerStop, &timerStart, &timerElapsed);
+    return timerElapsed.tv_sec*1000.0+timerElapsed.tv_usec/1000.0;
+#endif
+}
+
+#endif // TIMER_H