Function timerend

samples/postprocessing_benchmark.cpp:203–209

static struct timeval start, end;
void timerstart(void) { gettimeofday(&start, NULL); }
float timerend(void)
{
  gettimeofday(&end, NULL);
  float msec = (end.tv_sec - start.tv_sec) * 1000.0f +
               (end.tv_usec - start.tv_usec) / 1000.0f;
  return msec;
}
#else
LARGE_INTEGER start;
void timerstart(void) { QueryPerformanceCounter(&start); }