diff options
Diffstat (limited to 'attic/muse_qt4_evolution/synti/zynaddsubfx/Effects/EQ.C')
| -rw-r--r-- | attic/muse_qt4_evolution/synti/zynaddsubfx/Effects/EQ.C | 198 |
1 files changed, 0 insertions, 198 deletions
diff --git a/attic/muse_qt4_evolution/synti/zynaddsubfx/Effects/EQ.C b/attic/muse_qt4_evolution/synti/zynaddsubfx/Effects/EQ.C deleted file mode 100644 index 8180a655..00000000 --- a/attic/muse_qt4_evolution/synti/zynaddsubfx/Effects/EQ.C +++ /dev/null @@ -1,198 +0,0 @@ -/* - ZynAddSubFX - a software synthesizer - - EQ.C - EQ effect - 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 - -*/ - -#include <stdio.h> -#include <stdlib.h> -#include <math.h> -#include "EQ.h" - -EQ::EQ(int insertion_,REALTYPE *efxoutl_,REALTYPE *efxoutr_){ - efxoutl=efxoutl_; - efxoutr=efxoutr_; - insertion=insertion_; - filterpars=NULL; - - for (int i=0;i<MAX_EQ_BANDS;i++){ - filter[i].Ptype=0; - filter[i].Pfreq=64; - filter[i].Pgain=64; - filter[i].Pq=64; - filter[i].Pstages=0; - filter[i].l=new AnalogFilter(6,1000.0,1.0,0); - filter[i].r=new AnalogFilter(6,1000.0,1.0,0); - }; - //default values - Ppreset=0; - Pvolume=50; - - setpreset(Ppreset); - cleanup(); -}; - -EQ::~EQ(){ -}; - -/* - * Cleanup the effect - */ -void EQ::cleanup(){ - for (int i=0;i<MAX_EQ_BANDS;i++){ - filter[i].l->cleanup(); - filter[i].r->cleanup(); - }; -}; - - - -/* - * Effect output - */ -void EQ::out(REALTYPE *smpsl,REALTYPE *smpsr){ - int i; - for (i=0;i<SOUND_BUFFER_SIZE;i++){ - efxoutl[i]=smpsl[i]*volume; - efxoutr[i]=smpsr[i]*volume; - }; - - for (i=0;i<MAX_EQ_BANDS;i++){ - if (filter[i].Ptype==0) continue; - filter[i].l->filterout(efxoutl); - filter[i].r->filterout(efxoutr); - }; -}; - - -/* - * Parameter control - */ -void EQ::setvolume(unsigned char Pvolume){ - this->Pvolume=Pvolume; - - outvolume=pow(0.005,(1.0-Pvolume/127.0))*10.0; - if (insertion==0) { - volume=1.0; - } else { - volume=outvolume; - }; - -}; - - -void EQ::setpreset(unsigned char npreset){ - const int PRESET_SIZE=1; - const int NUM_PRESETS=2; - unsigned char presets[NUM_PRESETS][PRESET_SIZE]={ - //EQ 1 - {67}, - //EQ 2 - {67}}; - - if (npreset>=NUM_PRESETS) npreset=NUM_PRESETS-1; - for (int n=0;n<PRESET_SIZE;n++) changepar(n,presets[npreset][n]); - Ppreset=npreset; -}; - - -void EQ::changepar(int npar,unsigned char value){ - switch (npar){ - case 0: setvolume(value); - break; - }; - if (npar<10) return; - - int nb=(npar-10)/5;//number of the band (filter) - if (nb>=MAX_EQ_BANDS) return; - int bp=npar%5;//band paramenter - - REALTYPE tmp; - switch(bp){ - case 0: if (value>9) value=0;//has to be changed if more filters will be added - filter[nb].Ptype=value; - if (value!=0){ - filter[nb].l->settype(value-1); - filter[nb].r->settype(value-1); - }; - break; - case 1: filter[nb].Pfreq=value; - tmp=600.0*pow(30.0,(value-64.0)/64.0); - filter[nb].l->setfreq(tmp); - filter[nb].r->setfreq(tmp); - break; - case 2: filter[nb].Pgain=value; - tmp=30.0*(value-64.0)/64.0; - filter[nb].l->setgain(tmp); - filter[nb].r->setgain(tmp); - break; - case 3: filter[nb].Pq=value; - tmp=pow(30.0,(value-64.0)/64.0); - filter[nb].l->setq(tmp); - filter[nb].r->setq(tmp); - break; - case 4: if (value>=MAX_FILTER_STAGES) value=MAX_FILTER_STAGES-1; - filter[nb].Pstages=value; - filter[nb].l->setstages(value); - filter[nb].r->setstages(value); - break; - }; -}; - -unsigned char EQ::getpar(int npar){ - switch (npar){ - case 0: return(Pvolume); - break; - }; - - if (npar<10) return(0); - - int nb=(npar-10)/5;//number of the band (filter) - if (nb>=MAX_EQ_BANDS) return(0); - int bp=npar%5;//band paramenter - switch(bp){ - case 0: return(filter[nb].Ptype); - break; - case 1: return(filter[nb].Pfreq); - break; - case 2: return(filter[nb].Pgain); - break; - case 3: return(filter[nb].Pq); - break; - case 4: return(filter[nb].Pstages); - break; - }; - - return(0);//in case of bogus parameter number -}; - - - - -REALTYPE EQ::getfreqresponse(REALTYPE freq){ - REALTYPE resp=1.0; - - for (int i=0;i<MAX_EQ_BANDS;i++){ - if (filter[i].Ptype==0) continue; - resp*=filter[i].l->H(freq); - }; - return(rap2dB(resp*outvolume)); -}; - - |