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/*
ZynAddSubFX - a software synthesizer
FilterParams.h - Parameters for filter
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) 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 FILTER_PARAMS_H
#define FILTER_PARAMS_H
#include "../globals.h"
#include "../Misc/XMLwrapper.h"
#include "Presets.h"
class FilterParams:public Presets{
public:
FilterParams(unsigned char Ptype_,unsigned char Pfreq,unsigned char Pq_);
~FilterParams();
void add2XML(XMLwrapper *xml);
void add2XMLsection(XMLwrapper *xml,int n);
void defaults();
void getfromXML(XMLwrapper *xml);
void getfromXMLsection(XMLwrapper *xml,int n);
void getfromFilterParams(FilterParams *pars);
REALTYPE getfreq();
REALTYPE getq();
REALTYPE getfreqtracking(REALTYPE notefreq);
REALTYPE getgain();
unsigned char Pcategory;//Filter category (Analog/Formant/StVar)
unsigned char Ptype;// Filter type (for analog lpf,hpf,bpf..)
unsigned char Pfreq;// Frequency (64-central frequency)
unsigned char Pq; // Q parameters (resonance or bandwidth)
unsigned char Pstages; //filter stages+1
unsigned char Pfreqtrack;//how the filter frequency is changing according the note frequency
unsigned char Pgain;//filter's output gain
//Formant filter parameters
unsigned char Pnumformants;//how many formants are used
unsigned char Pformantslowness;//how slow varies the formants
unsigned char Pvowelclearness;//how vowels are kept clean (how much try to avoid "mixed" vowels)
unsigned char Pcenterfreq,Poctavesfreq;//the center frequency of the res. func., and the number of octaves
struct {
struct {
unsigned char freq,amp,q;//frequency,amplitude,Q
}formants[FF_MAX_FORMANTS];
}Pvowels[FF_MAX_VOWELS];
unsigned char Psequencesize;//how many vowels are in the sequence
unsigned char Psequencestretch;//how the sequence is stretched (how the input from filter envelopes/LFOs/etc. is "stretched")
unsigned char Psequencereversed;//if the input from filter envelopes/LFOs/etc. is reversed(negated)
struct {
unsigned char nvowel;//the vowel from the position
} Psequence[FF_MAX_SEQUENCE];
REALTYPE getcenterfreq();
REALTYPE getoctavesfreq();
REALTYPE getfreqpos(REALTYPE freq);
REALTYPE getfreqx(REALTYPE x);
void formantfilterH(int nvowel,int nfreqs,REALTYPE *freqs);//used by UI
REALTYPE getformantfreq(unsigned char freq);
REALTYPE getformantamp(unsigned char amp);
REALTYPE getformantq(unsigned char q);
bool changed;
private:
void defaults(int n);
//stored default parameters
unsigned char Dtype;
unsigned char Dfreq;
unsigned char Dq;
};
#endif
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