windows-nt/Source/XPSP1/NT/multimedia/opengl/scrsave/common/util.hxx
2020-09-26 16:20:57 +08:00

43 lines
980 B
C++

/******************************Module*Header*******************************\
* Module Name: util.hxx
*
* Utility classes
*
* Copyright (c) 1996 Microsoft Corporation
*
\**************************************************************************/
#ifndef __util_hxx__
#define __util_hxx__
class SS_TIME {
public:
SS_TIME() { Zero(); };
double Seconds();
void Update();
void Zero();
SS_TIME operator+( SS_TIME addTime );
SS_TIME operator-( SS_TIME subTime );
SS_TIME operator+=( SS_TIME addTime );
SS_TIME operator-=( SS_TIME subTime );
operator double() { return seconds; };
operator float() { return (float) seconds; };
operator int() { return (int) (seconds + 0.5); };
private:
double seconds;
};
class SS_TIMER {
public:
SS_TIMER() { Reset(); };
void Start();
SS_TIME Stop();
void Reset();
SS_TIME ElapsedTime();
private:
SS_TIME startTime;
SS_TIME elapsed;
};
#endif // __util_hxx__