Resonance.h

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/*
  ZynAddSubFX - a software synthesizer
 
  Resonance.h - Resonance
  Copyright (C) 2002-2005 Nasca Octavian Paul
  Author: Nasca Octavian Paul
 
  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 or later) 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 RESONANCE_H
#define RESONANCE_H
 
#include "../globals.h"
#include "../Misc/Util.h"
#include "../Misc/XMLwrapper.h"
#include "../Params/Presets.h"
#include "../DSP/FFTwrapper.h"
 
#define N_RES_POINTS 256
 
class Resonance:public Presets
{
    public:
        Resonance();
        ~Resonance();
        void setpoint(int n, unsigned char p);
        void applyres(int n, fft_t *fftdata, float freq);
        void smooth();
        void interpolatepeaks(int type);
        void randomize(int type);
 
        void add2XML(XMLwrapper *xml);
        void defaults();
        void getfromXML(XMLwrapper *xml);
 
 
        float getfreqpos(float freq);
        float getfreqx(float x);
        float getfreqresponse(float freq);
        float getcenterfreq();
        float getoctavesfreq();
        void sendcontroller(MidiControllers ctl, float par);
 
        //parameters
        unsigned char Penabled;     //if the ressonance is enabled
        unsigned char Prespoints[N_RES_POINTS]; //how many points define the resonance function
        unsigned char PmaxdB;       //how many dB the signal may be amplified
        unsigned char Pcenterfreq, Poctavesfreq; //the center frequency of the res. func., and the number of octaves
        unsigned char Pprotectthefundamental;   //the fundamental (1-st harmonic) is not damped, even it resonance function is low
 
        //controllers
        float ctlcenter; //center frequency(relative)
        float ctlbw; //bandwidth(relative)
 
    private:
};
 
#endif