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//************************************************************//
// DelayLine.h: interface of the Delayline class //
// //
// //
// //
//************************************************************//
#ifndef _DELAYLINE_H
#define _DELAYLINE_H
#include "SndObj.h"
class DelayLine : public SndObj
{
protected:
float* m_delay; // delay line
float m_delaytime; // delay time
long m_size; // delay line size in samples
long m_wpointer; // write pointer
long m_rpointer; // read pointer
void PutSample(float sample){
m_delay[(m_wpointer%=m_size)] = sample;
m_wpointer++;
}
float GetSample(){
float out;
out = m_delay[(m_rpointer%=m_size)];
m_rpointer++;
return out;
}
float GetSample(float pos){
double dump;
double frac = modf ((double)pos, &dump);
return (float)((1-frac)*m_delay[(int)pos] + frac*m_delay[(int)(pos+1)%m_size]);
}
public:
DelayLine();
DelayLine(float delaytime, SndObj* InObj, int vecsize=DEF_VECSIZE, float sr=DEF_SR);
~DelayLine();
float* Buffer() { return m_delay; }
long GetWritePointerPos() { return m_wpointer; }
float GetDelayTime() { return m_size/m_sr; }
void SetSr(float sr);
void Reset();
virtual void SetDelayTime(float delaytime);
int Set(char* mess, float value);
short DoProcess();
char* ErrorMessage();
};
#endif
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