diff options
Diffstat (limited to 'pvoc~.c')
| -rw-r--r-- | pvoc~.c | 564 |
1 files changed, 564 insertions, 0 deletions
@@ -0,0 +1,564 @@ +#include "MSPd.h"
+#include "fftease.h"
+
+#if MSP
+void *pvoc_class;
+#endif
+
+#if PD
+static t_class *pvoc_class;
+#endif
+
+#define OBJECT_NAME "pvoc~"
+
+typedef struct _pvoc
+{
+#if MSP
+ t_pxobject x_obj;
+#endif
+#if PD
+ t_object x_obj;
+ float x_f;
+#endif
+ int R;
+ int N;
+ int N2;
+ int Nw;
+ int Nw2;
+ int D;
+ int i;
+ int inCount;
+ float *Wanal;
+ float *Wsyn;
+ float *input;
+ float *Hwin;
+ float *buffer;
+ float *channel;
+ float *output;
+ // for convert
+ float *c_lastphase_in;
+ float *c_lastphase_out;
+ float c_fundamental;
+ float c_factor_in;
+ float c_factor_out;
+
+ // for oscbank
+ int NP;
+ float P;
+ int L;
+ int first;
+ float Iinv;
+ float *lastamp;
+ float *lastfreq;
+ float *index;
+ float *table;
+ float myPInc;
+ float ffac;
+ //
+ float lofreq;
+ float hifreq;
+ int lo_bin;
+ int hi_bin;
+ float topfreq;
+ float synt;
+ // for fast fft
+ float mult;
+ float *trigland;
+ int *bitshuffle;
+ //
+ int bypass_state;
+ int pitch_connected;
+ int synt_connected;
+ int overlap;
+ int winfac;
+ short mute;
+} t_pvoc;
+
+void *pvoc_new(t_symbol *s, int argc, t_atom *argv);
+t_int *offset_perform(t_int *w);
+t_int *pvoc_perform(t_int *w);
+void pvoc_dsp(t_pvoc *x, t_signal **sp, short *count);
+void pvoc_assist(t_pvoc *x, void *b, long m, long a, char *s);
+void pvoc_bypass(t_pvoc *x, t_floatarg state);//Pd does not accept A_LONG
+void pvoc_float(t_pvoc *x, double f);
+void pvoc_free(t_pvoc *x);
+void pvoc_mute(t_pvoc *x, t_floatarg tog);
+void pvoc_init(t_pvoc *x, short initialized);
+void pvoc_lowfreq(t_pvoc *x, t_floatarg f);
+void pvoc_highfreq(t_pvoc *x, t_floatarg f);
+void pvoc_overlap(t_pvoc *x, t_floatarg o);
+void pvoc_winfac(t_pvoc *x, t_floatarg f);
+void pvoc_fftinfo(t_pvoc *x);;
+
+#if PD
+/* Pd Initialization */
+void pvoc_tilde_setup(void)
+{
+ pvoc_class = class_new(gensym("pvoc~"), (t_newmethod)pvoc_new,
+ (t_method)pvoc_free ,sizeof(t_pvoc), 0,A_GIMME,0);
+ CLASS_MAINSIGNALIN(pvoc_class, t_pvoc, x_f);
+ class_addmethod(pvoc_class, (t_method)pvoc_dsp, gensym("dsp"), 0);
+ class_addmethod(pvoc_class, (t_method)pvoc_mute, gensym("mute"), A_DEFFLOAT,0);
+ class_addmethod(pvoc_class, (t_method)pvoc_bypass, gensym("bypass"), A_DEFFLOAT,0);
+ class_addmethod(pvoc_class, (t_method)pvoc_highfreq, gensym("highfreq"), A_DEFFLOAT,0);
+ class_addmethod(pvoc_class, (t_method)pvoc_lowfreq, gensym("lowfreq"), A_DEFFLOAT,0);
+ class_addmethod(pvoc_class, (t_method)pvoc_overlap, gensym("overlap"), A_DEFFLOAT,0);
+ class_addmethod(pvoc_class, (t_method)pvoc_winfac, gensym("winfac"), A_DEFFLOAT,0);
+ class_addmethod(pvoc_class, (t_method)pvoc_fftinfo, gensym("fftinfo"),0);
+ class_addmethod(pvoc_class, (t_method)pvoc_assist, gensym("assist"), 0);
+ post("%s %s",OBJECT_NAME,FFTEASE_ANNOUNCEMENT);
+}
+#endif
+
+#if MSP
+void main(void)
+{
+ setup((t_messlist **)&pvoc_class, (method)pvoc_new, (method)pvoc_free, (short)sizeof(t_pvoc), 0L, A_GIMME, 0);
+ addmess((method)pvoc_dsp, "dsp", A_CANT, 0);
+ addmess((method)pvoc_assist,"assist",A_CANT,0);
+ addmess((method)pvoc_bypass,"bypass",A_DEFFLOAT,0);
+ addmess((method)pvoc_mute,"mute",A_DEFFLOAT,0);
+ addmess((method)pvoc_lowfreq,"lowfreq",A_DEFFLOAT,0);
+ addmess((method)pvoc_highfreq,"highfreq",A_DEFFLOAT,0);
+ addmess((method)pvoc_fftinfo,"fftinfo",0);
+ addmess((method)pvoc_overlap, "overlap", A_DEFFLOAT, 0);
+ addmess((method)pvoc_winfac, "winfac", A_DEFFLOAT, 0);
+ addfloat((method)pvoc_float);
+ dsp_initclass();
+ post("%s %s",OBJECT_NAME,FFTEASE_ANNOUNCEMENT);
+}
+#endif
+
+void pvoc_mute(t_pvoc *x, t_floatarg tog)
+{
+ x->mute = (short)tog;
+}
+
+void pvoc_overlap(t_pvoc *x, t_floatarg f)
+{
+ int i = (int) f;
+ if(!power_of_two(i)){
+ error("%f is not a power of two",f);
+ return;
+ }
+ x->overlap = i;
+ pvoc_init(x,1);
+}
+
+void pvoc_winfac(t_pvoc *x, t_floatarg f)
+{
+ int i = (int)f;
+
+ if(!power_of_two(i)){
+ error("%f is not a power of two",f);
+ return;
+ }
+ x->winfac = i;
+ pvoc_init(x,2);
+}
+
+void pvoc_fftinfo(t_pvoc *x)
+{
+ if( ! x->overlap ){
+ post("zero overlap!");
+ return;
+ }
+ post("%s: FFT size %d, hopsize %d, windowsize %d", OBJECT_NAME, x->N, x->N/x->overlap, x->Nw);
+}
+
+void pvoc_free(t_pvoc *x ){
+#if MSP
+ dsp_free((t_pxobject *) x);
+#endif
+ freebytes(x->c_lastphase_in,0);
+ freebytes(x->c_lastphase_out,0);
+ freebytes(x->trigland,0);
+ freebytes(x->bitshuffle,0);
+ freebytes(x->Wanal,0);
+ freebytes(x->Wsyn,0);
+ freebytes(x->input,0);
+ freebytes(x->Hwin,0);
+ freebytes(x->buffer,0);
+ freebytes(x->channel,0);
+ freebytes(x->output,0);
+ freebytes(x->lastamp,0);
+ freebytes(x->lastfreq,0);
+ freebytes(x->index,0);
+ freebytes(x->table,0);
+}
+
+/*MSP only but Pd crashes without it
+maybe because of function definition???
+*/
+void pvoc_assist (t_pvoc *x, void *b, long msg, long arg, char *dst)
+{
+ if (msg==1) {
+ switch (arg) {
+ case 0: sprintf(dst,"(signal) Input"); break;
+ case 1: sprintf(dst,"(signal/float) Pitch Modification Factor"); break;
+ case 2: sprintf(dst,"(signal/float) Synthesis Threshold"); break;
+ }
+ } else if (msg==2) {
+ sprintf(dst,"(signal) Output");
+ }
+}
+
+void pvoc_highfreq(t_pvoc *x, t_floatarg f)
+{
+ float curfreq;
+
+ if(f < x->lofreq){
+ error("current minimum is %f",x->lofreq);
+ return;
+ }
+ if(f > x->R/2 ){
+ f = x->R/2;
+ }
+ x->hifreq = f;
+ x->hi_bin = 1;
+ curfreq = 0;
+ while(curfreq < x->hifreq) {
+ ++(x->hi_bin);
+ curfreq += x->c_fundamental;
+ }
+}
+
+void pvoc_lowfreq(t_pvoc *x, t_floatarg f)
+{
+ float curfreq;
+
+ if(f > x->hifreq){
+ error("current maximum is %f",x->lofreq);
+ return;
+ }
+ if(f < 0 ){
+ f = 0;
+ }
+ x->lofreq = f;
+ x->lo_bin = 0;
+ curfreq = 0;
+ while( curfreq < x->lofreq ) {
+ ++(x->lo_bin);
+ curfreq += x->c_fundamental ;
+ }
+}
+
+
+void pvoc_init(t_pvoc *x, short initialized)
+{
+ int i;
+ float curfreq;
+
+ if(!x->R)//temp init if MSP functions returned zero
+ x->R = 44100;
+ if(!x->D)
+ x->D = 256;
+ if(x->P <= 0)
+ x->P = 1.0;
+ if(!power_of_two(x->overlap))
+ x->overlap = 4;
+ if(!power_of_two(x->winfac))
+ x->winfac = 2;
+ x->N = x->D * x->overlap;
+ x->Nw = x->N * x->winfac;
+ limit_fftsize(&x->N,&x->Nw,OBJECT_NAME);
+ x->N2 = x->N / 2;
+ x->Nw2 = x->Nw / 2;
+ x->inCount = -(x->Nw);
+ x->bypass_state = 0;
+ x->mult = 1. / (float) x->N;
+ x->pitch_connected = 0;
+ x->synt_connected = 0;
+ x->mute = 0;
+ x->synt = .000001;
+ x->L = 8192 ;
+ x->c_fundamental = (float) x->R/(float)( (x->N2)<<1 );
+ x->c_factor_in = (float) x->R/((float)x->D * TWOPI);
+ x->c_factor_out = TWOPI * (float) x->D / (float) x->R;
+ x->Iinv = 1./x->D;
+ x->myPInc = x->P*x->L/x->R;
+ x->ffac = x->P * PI/x->N;
+
+ if(!initialized){
+ x->Wanal = (float *) getbytes( (MAX_Nw) * sizeof(float));
+ x->Wsyn = (float *) getbytes( (MAX_Nw) * sizeof(float));
+ x->Hwin = (float *) getbytes( (MAX_Nw) * sizeof(float));
+ x->input = (float *) getbytes( MAX_Nw * sizeof(float) );
+ x->output = (float *) getbytes( MAX_Nw * sizeof(float) );
+ x->buffer = (float *) getbytes( MAX_N * sizeof(float) );
+ x->channel = (float *) getbytes( (MAX_N+2) * sizeof(float) );
+ x->bitshuffle = (int *) getbytes( MAX_N * 2 * sizeof( int ) );
+ x->trigland = (float *) getbytes( MAX_N * 2 * sizeof( float ) );
+ x->c_lastphase_in = (float *) getbytes( (MAX_N2+1) * sizeof(float) );
+ x->c_lastphase_out = (float *) getbytes( (MAX_N2+1) * sizeof(float) );
+ x->lastamp = (float *) getbytes( (MAX_N+1) * sizeof(float) );
+ x->lastfreq = (float *) getbytes( (MAX_N+1) * sizeof(float) );
+ x->index = (float *) getbytes( (MAX_N+1) * sizeof(float) );
+ x->table = (float *) getbytes( x->L * sizeof(float) );
+ x->P = 1.0;
+ x->ffac = x->P * PI/MAX_N;
+ }
+ memset((char *)x->input,0,x->Nw * sizeof(float));
+ memset((char *)x->output,0,x->Nw * sizeof(float));
+ memset((char *)x->c_lastphase_in,0,(x->N2+1) * sizeof(float));
+ memset((char *)x->c_lastphase_out,0,(x->N2+1) * sizeof(float));
+ memset((char *)x->lastamp,0,(x->N+1) * sizeof(float));
+ memset((char *)x->lastfreq,0,(x->N+1) * sizeof(float));
+ memset((char *)x->index,0,(x->N+1) * sizeof(float));
+
+ for ( i = 0; i < x->L; i++ ) {
+ x->table[i] = (float) x->N * cos((float)i * TWOPI / (float)x->L);
+ }
+ init_rdft( x->N, x->bitshuffle, x->trigland);
+ makehanning( x->Hwin, x->Wanal, x->Wsyn, x->Nw, x->N, x->D, 0);
+
+ if( x->hifreq < x->c_fundamental ) {
+ x->hifreq = 3000.0 ;
+ }
+ x->hi_bin = 1;
+ curfreq = 0;
+ while( curfreq < x->hifreq ) {
+ ++(x->hi_bin);
+ curfreq += x->c_fundamental ;
+ }
+
+ x->lo_bin = 0;
+ curfreq = 0;
+ while( curfreq < x->lofreq ) {
+ ++(x->lo_bin);
+ curfreq += x->c_fundamental ;
+ }
+
+}
+
+void *pvoc_new(t_symbol *s, int argc, t_atom *argv)
+{
+#if MSP
+ t_pvoc *x = (t_pvoc *)newobject(pvoc_class);
+ dsp_setup((t_pxobject *)x,3);
+ outlet_new((t_pxobject *)x, "signal");
+#endif
+
+#if PD
+ t_pvoc *x = (t_pvoc *)pd_new(pvoc_class);
+ inlet_new(&x->x_obj, &x->x_obj.ob_pd,gensym("signal"), gensym("signal"));
+ inlet_new(&x->x_obj, &x->x_obj.ob_pd,gensym("signal"), gensym("signal"));
+ outlet_new(&x->x_obj, gensym("signal"));
+#endif
+
+ x->lofreq = atom_getfloatarg(0,argc,argv);
+ x->hifreq = atom_getfloatarg(1,argc,argv);
+ x->overlap = atom_getfloatarg(2,argc,argv);
+ x->winfac = atom_getfloatarg(3,argc,argv);
+
+ if(x->lofreq <0 || x->lofreq> 22050)
+ x->lofreq = 0;
+ if(x->hifreq <50 || x->hifreq> 22050)
+ x->hifreq = 4000;
+
+
+ if(!power_of_two(x->overlap)){
+ x->overlap = 4;
+ }
+ if(!power_of_two(x->winfac)){
+ x->winfac = 2;
+ }
+ x->R = sys_getsr();
+ x->D = sys_getblksize();
+
+ pvoc_init(x,0);
+
+ return (x);
+}
+
+t_int *pvoc_perform(t_int *w)
+{
+ int i,j, in,on;
+ int amp,freq,chan,L = 8192;
+
+ float a,ainc,f,finc,address;
+ int breaker = 0;
+ t_pvoc *x = (t_pvoc *) (w[1]);
+ t_float *inbuf = (t_float *)(w[2]);
+ t_float *in2 = (t_float *)(w[3]);
+ t_float *in3 = (t_float *)(w[4]);
+ t_float *outbuf = (t_float *)(w[5]);
+ t_int n = w[6];
+
+ int D = x->D;
+ int I = D;
+ int R = x->R;
+ int Nw = x->Nw;
+ int N = x->N ;
+ int N2 = x-> N2;
+ int Nw2 = x->Nw2;
+ float fundamental = x->c_fundamental;
+ float factor_in = x->c_factor_in;
+ float factor_out = x->c_factor_out;
+ int *bitshuffle = x->bitshuffle;
+ float *trigland = x->trigland;
+ float mult = x->mult;
+ float synt = x->synt;
+ float P = x->P;
+ float Iinv = 1./x->D;
+ float myPInc = x->myPInc;
+ float *table = x->table;
+ float *lastamp = x->lastamp ;
+ float *lastfreq = x->lastfreq ;
+ float *bindex = x->index;
+ float *lastphase_in = x->c_lastphase_in;
+ float *lastphase_out = x->c_lastphase_out;
+
+ float *Wanal = x->Wanal;
+ float *Wsyn = x->Wsyn;
+ float *input = x->input;
+ float *Hwin = x->Hwin;
+ float *buffer = x->buffer;
+ float *channel = x->channel;
+ float *output = x->output;
+ int hi_bin = x->hi_bin;
+ int lo_bin = x->lo_bin;
+ in = on = x->inCount ;
+
+
+ if(x->mute){
+ while(n--){
+ *outbuf++ = 0;
+ }
+ return w+7;
+ }
+#if MSP
+ if(x->pitch_connected) {
+ P = *in2;
+ myPInc = P * (float) x->L / (float)x->R;
+ }
+
+ if (x->synt_connected) {
+ synt = *in3;
+ }
+#endif
+ // Pd has superior float/signal inlet treatment
+#if PD
+ P = *in2;
+ synt = *in3;
+ myPInc = P * (float) x->L / (float)x->R;
+#endif
+
+ if (x->bypass_state) {
+ for( j = 0; j < D; j++ ) {
+ *outbuf++ = *inbuf++;
+ }
+ return w+7;
+ }
+
+ in = on = x->inCount ;
+
+ in += D;
+ on += I;
+
+ for ( j = 0 ; j < (Nw - D) ; j++ ){
+ input[j] = input[j+D];
+ }
+ for ( j = (Nw-D), i = 0 ; j < Nw; j++, i++ ) {// unneeded loop variable
+ input[j] = *inbuf++;
+ }
+
+ fold( input, Wanal, Nw, buffer, N, in );
+ rdft( N, 1, buffer, bitshuffle, trigland );
+ convert( buffer, channel, N2, lastphase_in, fundamental, factor_in );
+
+
+ // start osc bank
+
+ for ( chan = lo_bin; chan < hi_bin; chan++ ) {
+
+ freq = ( amp = ( chan << 1 ) ) + 1;
+ if ( channel[amp] < synt ){
+ breaker = 1;
+ }
+ if( breaker ) {
+ breaker = 0 ;
+ } else {
+ channel[freq] *= myPInc;
+ finc = ( channel[freq] - ( f = lastfreq[chan] ) )*Iinv;
+ ainc = ( channel[amp] - ( a = lastamp[chan] ) )*Iinv;
+ address = bindex[chan];
+ for ( n = 0; n < I; n++ ) {
+ output[n] += a*table[ (int) address ];
+
+ address += f;
+ while ( address >= L )
+ address -= L;
+ while ( address < 0 )
+ address += L;
+ a += ainc;
+ f += finc;
+ }
+ lastfreq[chan] = channel[freq];
+ lastamp[chan] = channel[amp];
+ bindex[chan] = address;
+ }
+ }
+
+
+ for ( j = 0; j < D; j++ ){
+ *outbuf++ = output[j] * mult;
+ }
+ for ( j = 0; j < Nw - D; j++ ){
+ output[j] = output[j+D];
+ }
+
+ for ( j = Nw - D; j < Nw; j++ ){
+ output[j] = 0.;
+ }
+
+
+
+ // restore state variables
+ x->inCount = in;
+ return (w+7);
+}
+
+void pvoc_bypass(t_pvoc *x, t_floatarg state)
+{
+ x->bypass_state = state;
+}
+
+#if MSP
+void pvoc_float(t_pvoc *x, double f) // Look at floats at inlets
+{
+ int inlet = x->x_obj.z_in;
+
+ if (inlet == 1)
+ {
+ x->P = (float)f;
+ x->myPInc = x->P*x->L/x->R;
+ }
+ else if (inlet == 2)
+ {
+ x->synt = (float)f;
+ }
+
+}
+#endif
+
+
+void pvoc_dsp(t_pvoc *x, t_signal **sp, short *count)
+{
+
+#if MSP // these blew up Pd
+ x->pitch_connected = count[1];
+ x->synt_connected = count[2];
+#endif
+
+ if(x->D != sp[0]->s_n || x->R != sp[0]->s_sr ){
+ x->D = sp[0]->s_n;
+ x->R = sp[0]->s_sr;
+ pvoc_init(x,1);
+ }
+
+ dsp_add(pvoc_perform, 6, x,
+ sp[0]->s_vec, sp[1]->s_vec, sp[2]->s_vec, sp[3]->s_vec,
+ sp[0]->s_n);
+}
+
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