diff options
Diffstat (limited to 'dentist~.c')
| -rw-r--r-- | dentist~.c | 693 |
1 files changed, 693 insertions, 0 deletions
diff --git a/dentist~.c b/dentist~.c new file mode 100644 index 0000000..e9cb8fe --- /dev/null +++ b/dentist~.c @@ -0,0 +1,693 @@ +#include "MSPd.h"
+#include "fftease.h"
+
+#if MSP
+void *dentist_class;
+#endif
+
+#if PD
+static t_class *dentist_class;
+#endif
+
+#define OBJECT_NAME "dentist~"
+
+typedef struct _dentist
+{
+#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;
+ //
+ short *bin_selection;
+ short *last_bin_selection;
+ int *active_bins;
+ int tooth_count;
+ int ramp_frames;
+ int frames_left;
+ float frame_duration;
+ int max_bin;
+ //
+ float mult;
+ float *trigland;
+ int *bitshuffle;
+ int overlap;
+ int winfac;
+ float topfreq;
+ float funda;
+ //
+ void *list_outlet;
+ short direct_update;
+ short mute;
+ t_atom *list_data;
+ short interpolate_singles;
+ float sync;
+} t_dentist;
+
+void *dentist_new(t_symbol *msg, short argc, t_atom *argv);
+t_int *offset_perform(t_int *w);
+t_int *dentist_perform(t_int *w);
+void dentist_dsp(t_dentist *x, t_signal **sp, short *count);
+void dentist_assist(t_dentist *x, void *b, long m, long a, char *s);
+void set_switch_bins (t_dentist *x, int i);
+void reset_shuffle(t_dentist *x);
+void dentist_showstate(t_dentist *x);
+void dentist_direct_update(t_dentist *x, t_floatarg toggle);
+void dentist_mute(t_dentist *x, t_floatarg toggle);
+void dentist_setstate(t_dentist *x, t_symbol *msg, short argc, t_atom *argv);
+void dentist_ramptime(t_dentist *x, t_floatarg ramp_ms);
+int rand_index(int max);
+void dentist_init(t_dentist *x, short initialized);
+void dentist_bins_pd (t_dentist *x, t_floatarg i);
+void dentist_topfreq(t_dentist *x, t_floatarg f);
+void dentist_free(t_dentist *x);
+void dentist_toothcount(t_dentist *x, t_floatarg newcount);
+void dentist_scramble(t_dentist *x);
+void dentist_activate_bins(t_dentist *x, t_floatarg f);
+void dentist_interpolate_singles(t_dentist *x, t_floatarg f);
+void dentist_overlap(t_dentist *x, t_floatarg o);
+void dentist_winfac(t_dentist *x, t_floatarg o);
+void dentist_fftinfo(t_dentist *x);
+void dentist_mute(t_dentist *x, t_floatarg toggle);
+
+
+#if MSP
+void main(void)
+{
+ setup((t_messlist **)&dentist_class, (method)dentist_new, (method)dsp_free,
+ (short)sizeof(t_dentist), 0, A_GIMME, 0);
+ addmess((method)dentist_dsp, "dsp", A_CANT, 0);
+ addint((method)set_switch_bins);
+// addbang((method)reset_shuffle);
+ addmess((method)dentist_showstate,"showstate",0);
+// addmess((method)dentist_direct_update,"direct_update",A_FLOAT, 0);
+ addmess((method)dentist_mute,"mute",A_FLOAT, 0);
+ addmess((method)dentist_setstate, "setstate", A_GIMME, 0);
+ addmess((method)dentist_ramptime, "ramptime", A_FLOAT, 0);
+ addmess((method)dentist_topfreq, "topfreq", A_FLOAT, 0);
+ addmess((method)dentist_toothcount, "toothcount", A_FLOAT, 0);
+// addmess((method)dentist_activate_bins, "activate_bins", A_FLOAT, 0);
+ addmess((method)dentist_interpolate_singles, "interpolate_singles", A_FLOAT, 0);
+ addmess((method)dentist_scramble, "scramble", 0);
+ addmess((method)dentist_assist,"assist",A_CANT,0);
+ addmess((method)dentist_overlap, "overlap", A_DEFFLOAT, 0);
+ addmess((method)dentist_winfac, "winfac", A_DEFFLOAT, 0);
+ addmess((method)dentist_fftinfo, "fftinfo", 0);
+ dsp_initclass();
+ post("%s %s",OBJECT_NAME,FFTEASE_ANNOUNCEMENT);
+}
+#endif
+
+#if PD
+void dentist_tilde_setup(void)
+{
+ dentist_class = class_new(gensym("dentist~"), (t_newmethod)dentist_new,
+ (t_method)dentist_free ,sizeof(t_dentist), 0,A_GIMME,0);
+ CLASS_MAINSIGNALIN(dentist_class, t_dentist, x_f);
+ class_addmethod(dentist_class,(t_method)dentist_dsp,gensym("dsp"),0);
+ class_addmethod(dentist_class,(t_method)dentist_mute,gensym("mute"),A_FLOAT,0);
+ class_addmethod(dentist_class,(t_method)dentist_showstate,gensym("showstate"),0);
+// class_addmethod(dentist_class,(t_method)dentist_direct_update,gensym("direct_update"),A_FLOAT,0);
+ class_addmethod(dentist_class,(t_method)dentist_setstate,gensym("setstate"),A_GIMME,0);
+ class_addmethod(dentist_class,(t_method)dentist_ramptime,gensym("ramptime"),A_FLOAT,0);
+// class_addmethod(dentist_class,(t_method)dentist_bins_pd,gensym("dentist_bins"),A_FLOAT,0);
+ class_addmethod(dentist_class,(t_method)dentist_topfreq,gensym("topfreq"),A_FLOAT,0);
+ class_addmethod(dentist_class,(t_method)dentist_toothcount,gensym("toothcount"),A_FLOAT,0);
+ class_addmethod(dentist_class,(t_method)dentist_interpolate_singles,gensym("interpolate_singles"),A_FLOAT, 0);
+ class_addmethod(dentist_class,(t_method)dentist_scramble,gensym("scramble"),0);
+// class_addmethod(dentist_class,(t_method)dentist_activate_bins,gensym("activate_bins"),A_FLOAT,0);
+ class_addmethod(dentist_class, (t_method)dentist_overlap, gensym("overlap"), A_DEFFLOAT,0);
+ class_addmethod(dentist_class, (t_method)dentist_winfac, gensym("winfac"), A_DEFFLOAT,0);
+ class_addmethod(dentist_class, (t_method)dentist_fftinfo, gensym("fftinfo"), 0);
+
+ post("%s %s",OBJECT_NAME,FFTEASE_ANNOUNCEMENT);
+}
+#endif
+
+void dentist_interpolate_singles(t_dentist *x, t_floatarg f)
+{
+ x->interpolate_singles = (short)f;
+// post("singles interp: %d",x->interpolate_singles);
+}
+
+void dentist_free(t_dentist *x)
+{
+/* Pd might be having difficulty freeing its memory */
+#if MSP
+ dsp_free((t_pxobject *)x);
+#endif
+ free(x->Wanal);
+ free(x->Wsyn);
+ free(x->input);
+ free(x->Hwin);
+ free(x->buffer);
+ free(x->channel);
+ free(x->output);
+ free(x->bitshuffle);
+ free(x->trigland);
+ free(x->bin_selection);
+ free(x->active_bins);
+ free(x->last_bin_selection);
+ free(x->list_data);
+
+//post("avoiding freeing memory here");
+}
+
+void dentist_overlap(t_dentist *x, t_floatarg f)
+{
+int o = (int)f;
+ if(!power_of_two(o)){
+ error("%d is not a power of two",o);
+ return;
+ }
+ x->overlap = o;
+ dentist_init(x,1);
+}
+
+void dentist_winfac(t_dentist *x, t_floatarg f)
+{
+int w = (int)f;
+ if(!power_of_two(w)){
+ error("%d is not a power of two",w);
+ return;
+ }
+ x->winfac = w;
+ dentist_init(x,2);
+}
+
+void dentist_fftinfo( t_dentist *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 dentist_direct_update( t_dentist *x, t_floatarg toggle)
+{
+ x->direct_update = (short)toggle;
+}
+
+void dentist_mute( t_dentist *x, t_floatarg toggle )
+{
+ x->mute = (short)toggle;
+}
+
+void dentist_assist (t_dentist *x, void *b, long msg, long arg, char *dst)
+{
+ if (msg==1) {
+ switch (arg) {
+ case 0:
+ sprintf(dst,"(signal) Input ");
+ break;
+ }
+ } else if (msg==2) {
+ switch (arg) {
+ case 0: sprintf(dst,"(signal) Output"); break;
+ case 1: sprintf(dst,"(signal) Interpolation Sync"); break;
+ case 2: sprintf(dst,"(list) Current Selected Bins"); break;
+ }
+ }
+}
+
+void *dentist_new(t_symbol *msg, short argc, t_atom *argv)
+{
+#if MSP
+ t_dentist *x = (t_dentist *)newobject(dentist_class);
+ x->list_outlet = listout((t_pxobject *)x);
+ dsp_setup((t_pxobject *)x,1);
+ outlet_new((t_pxobject *)x, "signal");
+ outlet_new((t_pxobject *)x, "signal");
+#endif
+
+#if PD
+ t_dentist *x = (t_dentist *)pd_new(dentist_class);
+ outlet_new(&x->x_obj, gensym("signal"));
+ outlet_new(&x->x_obj, gensym("signal"));
+ x->list_outlet = outlet_new(&x->x_obj,gensym("list"));
+#endif
+
+ // INITIALIZATIONS
+
+ x->D = sys_getblksize();
+ x->R = sys_getsr();
+ x->topfreq = atom_getfloatarg(0,argc,argv);
+ x->overlap = atom_getfloatarg(1,argc,argv);
+ x->winfac = atom_getfloatarg(2,argc,argv);
+ if(!power_of_two(x->overlap))
+ x->overlap = 4;
+ if(!power_of_two(x->winfac))
+ x->winfac = 1;
+
+ dentist_init(x,0);
+ return (x);
+}
+
+void dentist_topfreq(t_dentist *x, t_floatarg f)
+{
+float funda = x->funda;
+float curfreq;
+
+ if(f < 50 || f > x->R/2.0)
+ return;
+
+ x->topfreq = f;
+ x->max_bin = 1;
+ curfreq = 0;
+ while(curfreq < x->topfreq) {
+ ++(x->max_bin);
+ curfreq += funda ;
+ }
+}
+
+void dentist_init(t_dentist *x, short initialized)
+{
+
+ float curfreq;
+ int i;
+
+ x->N = x->overlap * x->D;
+ x->Nw = x->N * x->winfac;
+ limit_fftsize(&x->N,&x->Nw,OBJECT_NAME);
+
+ x->N2 = (x->N)>>1;
+ x->Nw2 = (x->Nw)>>1;
+ x->inCount = -(x->Nw);
+
+ if(!initialized){
+ x->sync = 0;
+ x->mute = 0;
+ x->direct_update = 0;
+ if(x->topfreq < 100)
+ x->topfreq = 100.0;
+ x->Wanal = (float *) calloc(MAX_Nw, sizeof(float));
+ x->Wsyn = (float *) calloc(MAX_Nw, sizeof(float));
+ x->input = (float *) calloc(MAX_Nw, sizeof(float));
+ x->Hwin = (float *) calloc(MAX_Nw, sizeof(float));
+ x->buffer = (float *) calloc(MAX_N, sizeof(float));
+ x->channel = (float *) calloc(MAX_N+2, sizeof(float));
+ x->output = (float *) calloc(MAX_Nw, sizeof(float));
+ x->bitshuffle = (int *) calloc(MAX_N * 2, sizeof(int));
+ x->trigland = (float *) calloc(MAX_N * 2, sizeof(float));
+ x->bin_selection = (short *) calloc( MAX_N2, sizeof(short));
+ x->active_bins = (int *) calloc( MAX_N2, sizeof(int));
+ x->last_bin_selection = (short *) calloc( MAX_N2, sizeof(short)) ;
+ x->list_data = (t_atom *) calloc( MAX_N + 2, sizeof(t_atom));
+ x->tooth_count = 0;
+ x->interpolate_singles = 1;
+ x->ramp_frames = 0;
+ dentist_scramble(x);
+ }
+ memset((char *)x->input,0,x->Nw * sizeof(float));
+ memset((char *)x->output,0,x->Nw * sizeof(float));
+ memset((char *)x->buffer,0,x->N * sizeof(float));
+ memset((char *)x->channel,0,(x->N+2) * sizeof(float));
+
+
+ x->mult = 1. / (float) x->N;
+ x->frame_duration = (float) x->D / (float) x->R;
+ x->frames_left = 0;
+ x->funda = (float) x->R / (float) x->N;
+ x->max_bin = 1;
+/* curfreq = 0;
+
+ while(curfreq < x->topfreq) {
+ ++(x->max_bin);
+ curfreq += x->funda;
+ }*/
+ if(!x->funda){
+ error("%s: zero sampling rate!",OBJECT_NAME);
+ return;
+ }
+ x->max_bin = (int) (x->topfreq / x->funda);
+ if(x->max_bin < 1)
+ x->max_bin = 1;
+
+ init_rdft( x->N, x->bitshuffle, x->trigland);
+ makehanning( x->Hwin, x->Wanal, x->Wsyn, x->Nw, x->N, x->D, 0);
+
+ for( i = 0; i < x->N2; i++) {
+ x->last_bin_selection[i] = x->bin_selection[i];
+ }
+}
+
+t_int *dentist_perform(t_int *w)
+{
+ int i,j;
+ float oldfrac,newfrac;
+ int tooth_count;
+
+ t_dentist *x = (t_dentist *) (w[1]);
+
+ t_float *in = (t_float *)(w[2]);
+ t_float *out = (t_float *)(w[3]);
+ t_float *sync_vec = (t_float *)(w[4]);
+ t_int n = w[5];
+
+ int frames_left = x->frames_left;
+ int ramp_frames = x->ramp_frames;
+ short *bin_selection = x->bin_selection;
+ short *last_bin_selection = x->last_bin_selection;
+ /* dereference struncture */
+ float *input = x->input;
+ float *buffer = x->buffer;
+ int inCount = x->inCount;
+ int R = x->R;
+ int N = x->N;
+ int N2 = x->N2;
+ int D = x->D;
+ int Nw = x->Nw;
+ float *Wanal = x->Wanal;
+ float *Wsyn = x->Wsyn;
+ float *output = x->output;
+ float *channel = x->channel;
+ float mult = x->mult ;
+ int *bitshuffle = x->bitshuffle;
+ float *trigland = x->trigland ;
+ float sync = x->sync;
+
+
+ if( x->mute ){
+ while( n-- ){
+ *out++ = 0.0;
+ *sync_vec++ = sync;
+ }
+ return (w+6);
+ }
+
+ inCount += D;
+
+ for ( j = 0 ; j < Nw - D ; j++ ){
+ input[j] = input[j+D];
+ }
+ for ( j = Nw - D; j < Nw; j++ ) {
+ input[j] = *in++;
+ }
+
+ fold( input, Wanal, Nw, buffer, N, inCount );
+ rdft( N, 1, buffer, bitshuffle, trigland );
+ leanconvert( buffer, channel, N2 );
+
+ if(frames_left > 0 && ramp_frames > 0) {
+ // INTERPOLATE ACCORDING TO POSITION IN RAMP
+ oldfrac = (float) frames_left / (float) ramp_frames ;
+ sync = newfrac = 1.0 - oldfrac;
+ for( i = 0; i < N2 ; i++){
+ if( (! bin_selection[i]) && (! last_bin_selection[i]) ){
+ channel[i * 2] = 0;
+ } else if (bin_selection[i] && last_bin_selection[i]) {
+ // channel[i * 2] *= 1; NO ACTION
+ } else if (bin_selection[i]) {
+ channel[i * 2] *= newfrac;
+ } else if (last_bin_selection[i]) {
+ channel[i * 2] *= oldfrac;
+ }
+ }
+ --frames_left;
+ if( ! frames_left ){
+ // Copy current to last
+ for( i = 0; i < N2; i++) {
+ last_bin_selection[i] = bin_selection[i];
+ }
+ }
+ } else {
+ for( i = 0; i < N2 ; i++){
+ if( ! bin_selection[ i ] ){
+ channel[ i * 2 ] = 0;
+ }
+ }
+ oldfrac = 0.0;
+ sync = 1.0;
+ }
+ leanunconvert( channel, buffer, N2 );
+ rdft( N, -1, buffer, bitshuffle, trigland );
+ overlapadd( buffer, N, Wsyn, output, Nw, inCount);
+
+ for ( j = 0; j < D; j++ )
+ *out++ = 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 */
+ for(i=0; i < n; i++){
+ sync_vec[i] = sync;
+ }
+ x->inCount = inCount % Nw;
+ x->frames_left = frames_left;
+ x->sync = sync;
+ return (w+6);
+}
+
+
+void set_switch_bins (t_dentist *x, int i)
+{
+ if( i < 0 ){
+ i = 0;
+ }
+ if( i > x->N2 ) {
+ i = x->N2;
+ }
+ x->tooth_count = i;
+ if( x->direct_update ){
+ reset_shuffle(x);
+ }
+ return;
+}
+//identical function for Pd
+void dentist_bins_pd (t_dentist *x, t_floatarg i)
+{
+ if( i < 0 ){
+ i = 0;
+ }
+ if( i > x->N2 ) {
+ i = x->N2;
+ }
+ x->tooth_count = (int)i;
+ if(x->direct_update){
+ reset_shuffle(x);
+ }
+ return;
+}
+
+// experimental, not to be used
+void dentist_activate_bins(t_dentist *x, t_floatarg f)
+{
+ if(f < 0 || f > x->max_bin){
+#if PD
+ post("* %d bin out of range",(int)f);
+#endif
+ return;
+ }
+ x->tooth_count = (int)f;
+}
+
+void dentist_scramble(t_dentist *x)
+{
+short *last_bin_selection = x->last_bin_selection;
+short *bin_selection = x->bin_selection;
+int *active_bins = x->active_bins;
+int N2 = x->N2;
+int i,tmp,b1,b2;
+int maxswap = x->max_bin;
+int tooth_count = x->tooth_count;
+
+ /* for(i = 0; i < x->N2; i++){
+ last_bin_selection[i] = bin_selection[i];
+ }*/
+ for(i=0; i<N2; i++){
+ bin_selection[i] = 0;
+ active_bins[i] = i;
+ }
+ while(maxswap > 0){
+ b1 = maxswap;
+ b2 = rand_index(maxswap);
+ tmp = active_bins[b1];
+ active_bins[b1] = active_bins[b2];
+ active_bins[b2] = tmp;
+ --maxswap;
+ }
+ for( i = 0; i < x->tooth_count; i++ ) {
+ x->bin_selection[active_bins[i]] = 1;
+ }
+ x->frames_left = x->ramp_frames;
+ if(! x->ramp_frames) {
+ for(i = 0; i < N2; i++){
+ last_bin_selection[i] = bin_selection[i];
+ }
+ }
+}
+
+
+void dentist_toothcount(t_dentist *x, t_floatarg newcount)
+{
+int i;
+int nc = (int) newcount;
+int max = x->max_bin;
+int tooth_count = x->tooth_count;
+int newbin;
+int oldbin;
+
+if(nc < 0 || nc > x->N2){
+#if PD
+ post("* %d out of range",nc);
+#endif
+#if MSP
+ error("%d out of range",nc);
+#endif
+ return;
+}
+ /* for(i = 0; i < x->N2; i++){
+ x->last_bin_selection[i] = x->bin_selection[i];
+ }*/
+ if(nc < x->tooth_count){
+ for(i = nc; i < tooth_count; i++){
+ x->bin_selection[x->active_bins[i]] = 0;
+ }
+ } else {
+ for(i = tooth_count; i < nc; i++){
+ x->bin_selection[x->active_bins[i]] = 1;
+ }
+ }
+ // if immediate reset
+ if(x->interpolate_singles){
+// post("setting frames left");
+ x->frames_left = x->ramp_frames;
+ }
+ if(! x->ramp_frames) {
+ for(i = 0; i < x->N2; i++){
+ x->last_bin_selection[i] = x->bin_selection[i];
+ }
+ }
+ x->tooth_count = nc;
+}
+
+
+void reset_shuffle (t_dentist *x)
+{
+ int i;
+ int temp, p1, p2;
+ int max;
+
+ max = x->max_bin;
+ for(i = 0; i < x->N2; i++){
+ x->last_bin_selection[i] = x->bin_selection[i];
+ x->bin_selection[i] = 0;
+ }
+ for(i = 0; i < x->max_bin; i++) {
+ x->active_bins[i] = rand_index(max);
+ x->bin_selection[x->active_bins[i]] = 1;
+ }
+ x->frames_left = x->ramp_frames;
+ if(! x->ramp_frames) { // Ramp Off - Immediately set last to current
+ for( i = 0; i < x->N2; i++ ){
+ x->last_bin_selection[ i ] = x->bin_selection[ i ];
+ }
+ }
+}
+
+int rand_index(int max) {
+ return (rand() % max);
+}
+
+void dentist_setstate (t_dentist *x, t_symbol *msg, short argc, t_atom *argv) {
+ short i;
+ int selex;
+
+ short *last_bin_selection = x->last_bin_selection;
+ short *bin_selection = x->bin_selection;
+ int *active_bins = x->active_bins;
+ x->tooth_count = argc;
+
+ for(i = 0; i < x->N2; i++){
+ last_bin_selection[i] = bin_selection[i]; // needed here
+ bin_selection[i] = 0;
+ }
+
+ for (i=0; i < argc; i++) {
+ selex = atom_getfloatarg(i,argc,argv);
+ if (selex < x->N2 && selex >= 0 ) {
+ active_bins[i] = selex;
+ bin_selection[selex] = 1;
+ } else {
+ post ("%d out of range bin",selex);
+ }
+ }
+
+
+ x->frames_left = x->ramp_frames;
+ if(! x->ramp_frames) { // Ramp Off - Immediately set last to current
+ for(i = 0; i < x->N2; i++){
+ last_bin_selection[i] = bin_selection[i];
+ }
+ }
+
+ return;
+}
+void dentist_ramptime (t_dentist *x, t_floatarg ramp_ms) {
+
+ if(ramp_ms <= 0){
+ x->ramp_frames = 0;
+ return;
+ }
+
+ x->frames_left = x->ramp_frames = (int)(ramp_ms * .001 / x->frame_duration);
+ return;
+}
+// REPORT CURRENT SHUFFLE STATUS
+void dentist_showstate (t_dentist *x) {
+
+ t_atom *list_data = x->list_data;
+
+ short i, count;
+ float data;
+
+ count = 0;
+ for(i = 0; i < x->tooth_count; i++ ) {
+ data = x->active_bins[i];
+#if MSP
+ SETLONG(list_data+count,x->active_bins[i]);
+ #endif
+ #if PD
+ SETFLOAT(list_data+count,data);
+ #endif
+ ++count;
+ }
+ outlet_list(x->list_outlet,0,x->tooth_count,list_data);
+
+ return;
+}
+void dentist_dsp(t_dentist *x, t_signal **sp, short *count)
+{
+ long i;
+ if(x->R != sp[0]->s_sr || x->D != sp[0]->s_n){
+ x->R = sp[0]->s_sr;
+ x->D = sp[0]->s_n;
+ dentist_init(x,1);
+ }
+ dsp_add(dentist_perform, 5, x, sp[0]->s_vec, sp[1]->s_vec, sp[2]->s_vec, sp[0]->s_n);
+}
+
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