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#ifndef NULLSOFT_OUT_DS_VOLCTRL_H
#define NULLSOFT_OUT_DS_VOLCTRL_H
#include <windows.h>
#include <mmsystem.h>
#include <dsound.h>
class DsVolCtrl
{
public:
DsVolCtrl(int VolMode, double LogVolMin, bool logfades);
void SetFade(__int64 duration, double destvol, double destpan);
inline void SetFadeVol(__int64 duration, double destvol) {SetFade(duration, destvol, DestPanHack);}
inline void SetFadePan(__int64 duration, double destpan) {SetFade(duration, DestVolHack, destpan);}
__int64 RelFade(__int64 max, double destvol);
void SetTime(__int64 time);
void SetVolume(double vol);
void SetPan(double pan);
void Apply(IDirectSoundBuffer * pDSB);
// inline double GetCurVol() {return CurVol;}
inline double GetDestVol() { return DestVolHack;}
inline void Reset() {CurTime = 0;FadeDstTime = -1;}
double Stat_GetVolLeft();
double Stat_GetVolRight();
bool Fading();
private:
bool IsFading;
int VolMode;
double LogVolMin;
double FadeSrcVol, FadeDstVol, FadeSrcPan, FadeDstPan;
__int64 FadeSrcTime, FadeDstTime;
__int64 CurTime;
double CurVol, CurPan, LastVol, LastPan;
double DestVolHack, DestPanHack;
bool LogFades;
void MapVol(double Vol, double Pan, double &NewVol, double &NewPan);
};
#endif
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