Search  

---

C:/temp/src/j2k/etc/Games/fps.hpp

Go to the documentation of this file.

// It's a very simple fps counter, which prints information to the
// stream stdout every second. It's only useful for debugging purposes.

#ifndef __J2K__Jfps_HPP__
#define __J2K__Jfps_HPP__

#include <j2k/Fred/Standard.hpp>
#include <time.h>

class Jfps {
public:
  inline Jfps();
  void calculate();

private:
  long curTime, lateTime, beginTime;
  long count, totalFrames;
  float msec;
  float average;
};

inline Jfps::Jfps() 
{
  time( &beginTime );
}

void Jfps::calculate() 
{
  count++;
  time( &curTime );

  if ( lateTime != curTime ) 
  {
    lateTime = curTime;
    msec = (float)1000 / (float)count;
    totalFrames += count;
    average = (float)totalFrames / (float)(curTime - beginTime);
    printf("fps: %4d  AVG: %3.1f  MS: %3.1f\n", (int)count, average, msec);
    count = 0;
  }
}

#endif

---