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Chorus.h

/*
  ZynAddSubFX - a software synthesizer
 
  Chorus.h - Chorus and Flange effects
  Copyright (C) 2002-2005 Nasca Octavian Paul
  Author: Nasca Octavian Paul

  Modified for rakarrack by Josep Andreu

  This program is free software; you can redistribute it and/or modify
  it under the terms of version 2 of the GNU General Public License 
  as published by the Free Software Foundation.

  This program is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License (version 2) for more details.

  You should have received a copy of the GNU General Public License (version 2)
  along with this program; if not, write to the Free Software Foundation,
  Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA

*/

#ifndef CHORUS_H
#define CHORUS_H
#include "global.h"
#include "EffectLFO.h"
#define MAX_CHORUS_DELAY 250.0      //ms

class Chorus
{

public:
  Chorus (REALTYPE * efxoutl_, REALTYPE * efxoutr_);
  ~Chorus ();
  void out (REALTYPE * smpsl, REALTYPE * smpsr);
  void setpreset (unsigned char npreset);
  void changepar (int npar, unsigned char value);
  unsigned char getpar (int npar);
  void cleanup ();


  unsigned char Ppreset;
  REALTYPE *efxoutl;
  REALTYPE *efxoutr;

  REALTYPE outvolume;         //this is the volume of effect and is public because need it in system effect. The out volume of s
  REALTYPE volume;



private:
  //Parametrii Chorus
    EffectLFO lfo;            //lfo-ul chorus
  unsigned char Pvolume;
  unsigned char Ppanning;
  unsigned char Pdepth;       //the depth of the Chorus(ms)
  unsigned char Pdelay;       //the delay (ms)
  unsigned char Pfb;          //feedback
  unsigned char Plrcross;     //feedback
  unsigned char Pflangemode;  //how the LFO is scaled, to result chorus or flange
  unsigned char Poutsub;      //if I wish to substract the output instead of the adding it


  //Control Parametrii
  void setvolume (unsigned char Pvolume);
  void setpanning (unsigned char Ppanning);
  void setdepth (unsigned char Pdepth);
  void setdelay (unsigned char Pdelay);
  void setfb (unsigned char Pfb);
  void setlrcross (unsigned char Plrcross);

  //Valorile interne
  REALTYPE depth, delay, fb, lrcross, panning;
  REALTYPE dl1, dl2, dr1, dr2, lfol, lfor;
  int maxdelay;
  REALTYPE *delayl, *delayr;
  int dlk, drk, dlhi, dlhi2;
  REALTYPE getdelay (REALTYPE xlfo);
  REALTYPE dllo, mdel;
};

#endif

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