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-rw-r--r--muse_qt4_evolution/synti/zynaddsubfx/Effects/DynamicFilter.C318
1 files changed, 318 insertions, 0 deletions
diff --git a/muse_qt4_evolution/synti/zynaddsubfx/Effects/DynamicFilter.C b/muse_qt4_evolution/synti/zynaddsubfx/Effects/DynamicFilter.C
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+++ b/muse_qt4_evolution/synti/zynaddsubfx/Effects/DynamicFilter.C
@@ -0,0 +1,318 @@
+/*
+ ZynAddSubFX - a software synthesizer
+
+ DynamicFilter.C - "WahWah" effect and others
+ 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 <math.h>
+#include "DynamicFilter.h"
+#include <stdio.h>
+
+DynamicFilter::DynamicFilter(int insertion_,REALTYPE *efxoutl_,REALTYPE *efxoutr_){
+ efxoutl=efxoutl_;
+ efxoutr=efxoutr_;
+
+ insertion=insertion_;
+
+ Ppreset=0;
+ filterl=NULL;
+ filterr=NULL;
+ filterpars=new FilterParams(0,64,64);
+ setpreset(Ppreset);
+ cleanup();
+};
+
+DynamicFilter::~DynamicFilter(){
+ delete(filterpars);
+ delete(filterl);
+ delete(filterr);
+};
+
+
+/*
+ * Apply the effect
+ */
+void DynamicFilter::out(REALTYPE *smpsl,REALTYPE *smpsr){
+ int i;
+ if (filterpars->changed){
+ filterpars->changed=false;
+ cleanup();
+ };
+
+ REALTYPE lfol,lfor;
+ lfo.effectlfoout(&lfol,&lfor);
+ lfol*=depth*5.0;lfor*=depth*5.0;
+ REALTYPE freq=filterpars->getfreq();
+ REALTYPE q=filterpars->getq();
+
+ for (i=0;i<SOUND_BUFFER_SIZE;i++){
+ efxoutl[i]=smpsl[i];
+ efxoutr[i]=smpsr[i];
+
+ REALTYPE x=(fabs(smpsl[i])+fabs(smpsr[i]))*0.5;
+ ms1=ms1*(1.0-ampsmooth)+x*ampsmooth+1e-10;
+ };
+
+
+ REALTYPE ampsmooth2=pow(ampsmooth,0.2)*0.3;
+ ms2=ms2*(1.0-ampsmooth2)+ms1*ampsmooth2;
+ ms3=ms3*(1.0-ampsmooth2)+ms2*ampsmooth2;
+ ms4=ms4*(1.0-ampsmooth2)+ms3*ampsmooth2;
+ REALTYPE rms=(sqrt(ms4))*ampsns;
+
+ REALTYPE frl=filterl->getrealfreq(freq+lfol+rms);
+ REALTYPE frr=filterr->getrealfreq(freq+lfor+rms);
+
+ filterl->setfreq_and_q(frl,q);
+ filterr->setfreq_and_q(frr,q);
+
+
+ filterl->filterout(efxoutl);
+ filterr->filterout(efxoutr);
+
+ //panning
+ for (i=0;i<SOUND_BUFFER_SIZE;i++){
+ efxoutl[i]*=panning;
+ efxoutr[i]*=(1.0-panning);
+ };
+
+};
+
+/*
+ * Cleanup the effect
+ */
+void DynamicFilter::cleanup(){
+ reinitfilter();
+ ms1=0.0;
+ ms2=0.0;
+ ms3=0.0;
+ ms4=0.0;
+};
+
+
+/*
+ * Parameter control
+ */
+
+void DynamicFilter::setdepth(unsigned char Pdepth){
+ this->Pdepth=Pdepth;
+ depth=pow((Pdepth/127.0),2.0);
+};
+
+
+void DynamicFilter::setvolume(unsigned char Pvolume){
+ this->Pvolume=Pvolume;
+ outvolume=Pvolume/127.0;
+ if (insertion==0) volume=1.0;
+ else volume=outvolume;
+};
+
+void DynamicFilter::setpanning(unsigned char Ppanning){
+ this->Ppanning=Ppanning;
+ panning=Ppanning/127.0;
+};
+
+
+void DynamicFilter::setampsns(unsigned char Pampsns){
+ ampsns=pow(Pampsns/127.0,2.5)*10.0;
+ if (Pampsnsinv!=0) ampsns=-ampsns;
+ ampsmooth=exp(-Pampsmooth/127.0*10.0)*0.99;
+ this->Pampsns=Pampsns;
+};
+
+void DynamicFilter::reinitfilter(){
+ if (filterl!=NULL) delete(filterl);
+ if (filterr!=NULL) delete(filterr);
+ filterl=new Filter(filterpars);
+ filterr=new Filter(filterpars);
+};
+
+void DynamicFilter::setpreset(unsigned char npreset){
+ const int PRESET_SIZE=10;
+ const int NUM_PRESETS=5;
+ unsigned char presets[NUM_PRESETS][PRESET_SIZE]={
+ //WahWah
+ {110,64,80,0,0,64,0,90,0,60},
+ //AutoWah
+ {110,64,70,0,0,80,70,0,0,60},
+ //Sweep
+ {100,64,30,0,0,50,80,0,0,60},
+ //VocalMorph1
+ {110,64,80,0,0,64,0,64,0,60},
+ //VocalMorph1
+ {127,64,50,0,0,96,64,0,0,60}};
+
+ if (npreset>=NUM_PRESETS) npreset=NUM_PRESETS-1;
+ for (int n=0;n<PRESET_SIZE;n++) changepar(n,presets[npreset][n]);
+
+ filterpars->defaults();
+ switch(npreset){
+ case 0:
+ filterpars->Pcategory=0;
+ filterpars->Ptype=2;
+ filterpars->Pfreq=45;
+ filterpars->Pq=64;
+ filterpars->Pstages=1;
+ filterpars->Pgain=64;
+ break;
+ case 1:
+ filterpars->Pcategory=2;
+ filterpars->Ptype=0;
+ filterpars->Pfreq=72;
+ filterpars->Pq=64;
+ filterpars->Pstages=0;
+ filterpars->Pgain=64;
+ break;
+ case 2:
+ filterpars->Pcategory=0;
+ filterpars->Ptype=4;
+ filterpars->Pfreq=64;
+ filterpars->Pq=64;
+ filterpars->Pstages=2;
+ filterpars->Pgain=64;
+ break;
+ case 3:
+ filterpars->Pcategory=1;
+ filterpars->Ptype=0;
+ filterpars->Pfreq=50;
+ filterpars->Pq=70;
+ filterpars->Pstages=1;
+ filterpars->Pgain=64;
+
+ filterpars->Psequencesize=2;
+ // "I"
+ filterpars->Pvowels[0].formants[0].freq=34;
+ filterpars->Pvowels[0].formants[0].amp=127;
+ filterpars->Pvowels[0].formants[0].q=64;
+ filterpars->Pvowels[0].formants[1].freq=99;
+ filterpars->Pvowels[0].formants[1].amp=122;
+ filterpars->Pvowels[0].formants[1].q=64;
+ filterpars->Pvowels[0].formants[2].freq=108;
+ filterpars->Pvowels[0].formants[2].amp=112;
+ filterpars->Pvowels[0].formants[2].q=64;
+ // "A"
+ filterpars->Pvowels[1].formants[0].freq=61;
+ filterpars->Pvowels[1].formants[0].amp=127;
+ filterpars->Pvowels[1].formants[0].q=64;
+ filterpars->Pvowels[1].formants[1].freq=71;
+ filterpars->Pvowels[1].formants[1].amp=121;
+ filterpars->Pvowels[1].formants[1].q=64;
+ filterpars->Pvowels[1].formants[2].freq=99;
+ filterpars->Pvowels[1].formants[2].amp=117;
+ filterpars->Pvowels[1].formants[2].q=64;
+ break;
+ case 4:
+ filterpars->Pcategory=1;
+ filterpars->Ptype=0;
+ filterpars->Pfreq=64;
+ filterpars->Pq=70;
+ filterpars->Pstages=1;
+ filterpars->Pgain=64;
+
+ filterpars->Psequencesize=2;
+ filterpars->Pnumformants=2;
+ filterpars->Pvowelclearness=0;
+
+ filterpars->Pvowels[0].formants[0].freq=70;
+ filterpars->Pvowels[0].formants[0].amp=127;
+ filterpars->Pvowels[0].formants[0].q=64;
+ filterpars->Pvowels[0].formants[1].freq=80;
+ filterpars->Pvowels[0].formants[1].amp=122;
+ filterpars->Pvowels[0].formants[1].q=64;
+
+ filterpars->Pvowels[1].formants[0].freq=20;
+ filterpars->Pvowels[1].formants[0].amp=127;
+ filterpars->Pvowels[1].formants[0].q=64;
+ filterpars->Pvowels[1].formants[1].freq=100;
+ filterpars->Pvowels[1].formants[1].amp=121;
+ filterpars->Pvowels[1].formants[1].q=64;
+ break;
+ };
+
+// for (int i=0;i<5;i++){
+// printf("freq=%d amp=%d q=%d\n",filterpars->Pvowels[0].formants[i].freq,filterpars->Pvowels[0].formants[i].amp,filterpars->Pvowels[0].formants[i].q);
+// };
+ if (insertion==0) changepar(0,presets[npreset][0]/2);//lower the volume if this is system effect
+ Ppreset=npreset;
+
+ reinitfilter();
+};
+
+
+void DynamicFilter::changepar(int npar,unsigned char value){
+ switch(npar){
+ case 0: setvolume(value);
+ break;
+ case 1: setpanning(value);
+ break;
+ case 2: lfo.Pfreq=value;
+ lfo.updateparams();
+ break;
+ case 3: lfo.Prandomness=value;
+ lfo.updateparams();
+ break;
+ case 4: lfo.PLFOtype=value;
+ lfo.updateparams();
+ break;
+ case 5: lfo.Pstereo=value;
+ lfo.updateparams();
+ break;
+ case 6: setdepth(value);
+ break;
+ case 7: setampsns(value);
+ break;
+ case 8: Pampsnsinv=value;
+ setampsns(Pampsns);
+ break;
+ case 9: Pampsmooth=value;
+ setampsns(Pampsns);
+ break;
+ };
+};
+
+unsigned char DynamicFilter::getpar(int npar){
+ switch (npar){
+ case 0: return(Pvolume);
+ break;
+ case 1: return(Ppanning);
+ break;
+ case 2: return(lfo.Pfreq);
+ break;
+ case 3: return(lfo.Prandomness);
+ break;
+ case 4: return(lfo.PLFOtype);
+ break;
+ case 5: return(lfo.Pstereo);
+ break;
+ case 6: return(Pdepth);
+ break;
+ case 7: return(Pampsns);
+ break;
+ case 8: return(Pampsnsinv);
+ break;
+ case 9: return(Pampsmooth);
+ break;
+ default:return (0);
+ };
+
+};
+
+
+
+
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