C:/development/RenderTools/src/common/StopWatch.h

Go to the documentation of this file.

/*
 */
#pragma once
#ifndef STOPWATCH_H
#define STOPWATCH_H

#ifdef RT_PROFILER

#include <windows.h>

namespace RenderTools {

class Stopwatch {
public:

        Stopwatch(){
                QueryPerformanceFrequency( (LARGE_INTEGER *)& m_ticksPerSecond );
                reset();
        }
        void reset(){
                QueryPerformanceCounter( (LARGE_INTEGER *)& m_t0 );
                QueryPerformanceCounter( (LARGE_INTEGER *)& m_t1 );
        }
        double lapse(){
                QueryPerformanceCounter( (LARGE_INTEGER *)& m_t1 );
                __int64 ticks = m_t1 - m_t0;
                reset();
                return( (double)ticks / (double)m_ticksPerSecond );
        }

private:
        __int64 m_ticksPerSecond;
        __int64 m_t0;
        __int64 m_t1;
};

}; // namespace RenderTools

#endif // RT_PROFILER

#endif 

---