Stopwatch.h

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#ifndef G3D_Stopwatch_h
#define G3D_Stopwatch_h

#include "G3D/platform.h"
#include "G3D/Queue.h"
#include "G3D/G3DGameUnits.h"
#include "G3D/g3dmath.h"

namespace G3D {

class Stopwatch {
private:

 std::string myName;

 bool m_enabled;

 double startTime;
 std::string prevMark;
 double prevTime;

 bool inBetween;

 uint64 cycleStart;

 RealTime timeStart;

 RealTime lastTockTime;

 RealTime lastDuration;
 int64 lastCycleCount;

 double m_fps;

 double emwaFPS;
 double m_smoothFPS;

 RealTime emwaDuration;

 int64 cycleOverhead;
 
 void computeOverhead();

public:

 Stopwatch(const std::string& name = "Stopwatch");

 void setEnabled(bool e) {
 m_enabled = e;
 }

 bool enabled() const {
 return m_enabled;
 }

 double FPS() const {
 return m_fps;
 }

 RealTime elapsedTime() const {
 return lastDuration;
 }

 RealTime smoothElapsedTime() const {
 return emwaDuration;
 }

 double smoothFPS() const {
 return m_smoothFPS;
 }

 uint64 elapsedCycles() const {
 return lastCycleCount;
 }

 void tick();

 void tock();

 
 void reset();

 void after(const std::string& s = "");

};

typedef Stopwatch StopWatch;

}

#endif