diff options
Diffstat (limited to 'disarray~.c')
| -rw-r--r-- | disarray~.c | 526 |
1 files changed, 526 insertions, 0 deletions
diff --git a/disarray~.c b/disarray~.c new file mode 100644 index 0000000..c115857 --- /dev/null +++ b/disarray~.c @@ -0,0 +1,526 @@ +#include "MSPd.h"
+#include "fftease.h"
+
+#define MEMPAD (1024)
+
+#if MSP
+void *disarray_class;
+#endif
+
+#if PD
+static t_class *disarray_class;
+#endif
+
+#define OBJECT_NAME "disarray~"
+
+
+typedef struct _disarray
+{
+#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;
+ //
+ int *shuffle_in;
+ int *shuffle_out;
+ int shuffle_count;
+ int max_bin;
+ //
+ float mult;
+ float *trigland;
+ int *bitshuffle;
+ //
+ float top_frequency;
+ int overlap;
+ int winfac;
+ float c_fundamental;
+
+ //
+ void *list_outlet;
+ t_atom *list_data;
+ short mute;
+ short bypass;
+ short lock;
+} t_disarray;
+
+void *disarray_new(t_symbol *msg, short argc, t_atom *argv);
+t_int *offset_perform(t_int *w);
+t_int *disarray_perform(t_int *w);
+void disarray_dsp(t_disarray *x, t_signal **sp, short *count);
+void disarray_assist(t_disarray *x, void *b, long m, long a, char *s);
+void switch_count (t_disarray *x, t_floatarg i);
+void iswitch_count (t_disarray *x, t_int i);
+void disarray_topfreq (t_disarray *x, t_floatarg freq);
+void reset_shuffle( t_disarray *x );
+void disarray_showstate( t_disarray *x );
+void disarray_list (t_disarray *x, t_symbol *msg, short argc, t_atom *argv);
+void disarray_setstate (t_disarray *x, t_symbol *msg, short argc, t_atom *argv);
+int rand_index( int max);
+void disarray_mute(t_disarray *x, t_floatarg toggle);
+void disarray_bypass(t_disarray *x, t_floatarg toggle);
+void disarray_tilde_setup(void);
+void disarray_free(t_disarray *x);
+
+void disarray_overlap(t_disarray *x, t_floatarg o);
+void disarray_winfac(t_disarray *x, t_floatarg o);
+void disarray_fftinfo(t_disarray *x);
+void disarray_init(t_disarray *x, short initialized);
+
+#if MSP
+void main(void)
+{
+ setup((t_messlist **)&disarray_class, (method)disarray_new,
+ (method)disarray_free, (short)sizeof(t_disarray), 0, A_GIMME, 0);
+ addmess((method)disarray_dsp, "dsp", A_CANT, 0);
+ addint((method)iswitch_count);
+ addbang((method)reset_shuffle);
+ addmess((method)disarray_showstate,"showstate",0);
+ addmess ((method)disarray_list, "list", A_GIMME, 0);
+ addmess ((method)disarray_setstate, "setstate", A_GIMME, 0);
+ addmess((method)disarray_assist,"assist",A_CANT,0);
+ addmess ((method)disarray_mute, "mute", A_FLOAT, 0);
+ addmess ((method)disarray_topfreq, "topfreq", A_FLOAT, 0);
+ addmess ((method)disarray_bypass, "bypass", A_LONG, 0);
+ addmess((method)disarray_overlap, "overlap", A_DEFFLOAT, 0);
+ addmess((method)disarray_winfac, "winfac", A_DEFFLOAT, 0);
+ addmess((method)switch_count, "switch_count", A_DEFFLOAT, 0);
+ addmess((method)disarray_fftinfo, "fftinfo", 0);
+
+ dsp_initclass();
+ post("%s %s",OBJECT_NAME,FFTEASE_ANNOUNCEMENT);
+}
+#endif
+
+#if PD
+void disarray_tilde_setup(void)
+{
+ disarray_class = class_new(gensym("disarray~"), (t_newmethod)disarray_new,
+ (t_method)disarray_free ,sizeof(t_disarray), 0,A_GIMME,0);
+ CLASS_MAINSIGNALIN(disarray_class, t_disarray, x_f);
+ class_addmethod(disarray_class, (t_method)disarray_dsp, gensym("dsp"), 0);
+ class_addmethod(disarray_class, (t_method)disarray_showstate, gensym("showstate"), 0);
+ class_addmethod(disarray_class, (t_method)disarray_list, gensym("list"), A_GIMME, 0);
+ class_addmethod(disarray_class, (t_method)disarray_mute, gensym("mute"), A_FLOAT, 0);
+ class_addmethod(disarray_class, (t_method)disarray_topfreq, gensym("topfreq"), A_FLOAT, 0);
+ class_addmethod(disarray_class, (t_method)switch_count, gensym("switch_count"), A_FLOAT, 0);
+ class_addmethod(disarray_class, (t_method)reset_shuffle, gensym("bang"), 0);
+ class_addmethod(disarray_class, (t_method)disarray_overlap, gensym("overlap"), A_DEFFLOAT,0);
+ class_addmethod(disarray_class, (t_method)disarray_winfac, gensym("winfac"), A_DEFFLOAT,0);
+ class_addmethod(disarray_class, (t_method)disarray_fftinfo, gensym("fftinfo"), 0);
+ post("%s %s",OBJECT_NAME,FFTEASE_ANNOUNCEMENT);
+}
+#endif
+
+void disarray_free(t_disarray *x)
+{
+#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->list_data) ;
+}
+
+
+void disarray_overlap(t_disarray *x, t_floatarg o)
+{
+ if(!power_of_two(o)){
+ error("%f is not a power of two",o);
+ return;
+ }
+ x->overlap = (int)o;
+ disarray_init(x,1);
+}
+
+void disarray_winfac(t_disarray *x, t_floatarg f)
+{
+ if(!power_of_two(f)){
+ error("%f is not a power of two",f);
+ return;
+ }
+ x->winfac = (int)f;
+ disarray_init(x,2); /* calling lighter reinit routine */
+}
+
+void disarray_fftinfo( t_disarray *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 disarray_topfreq (t_disarray *x, t_floatarg freq)
+{
+ float funda = (float) x->R / (2. * (float) x->N) ;
+ float curfreq;
+
+
+ if( freq < funda || freq > 20000) {
+ freq = 1000.0 ;
+ }
+ x->max_bin = 1;
+ curfreq = 0;
+ while( curfreq < freq ) {
+ ++(x->max_bin);
+ curfreq += funda ;
+ }
+
+}
+
+void disarray_assist (t_disarray *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,"(list) Current State "); break;
+ }
+ }
+}
+
+void *disarray_new(t_symbol *msg, short argc, t_atom *argv)
+{
+#if MSP
+ t_disarray *x = (t_disarray *)newobject(disarray_class);
+ x->list_outlet = listout((t_pxobject *)x);
+ dsp_setup((t_pxobject *)x,1);
+ outlet_new((t_pxobject *)x, "signal");
+#endif
+
+#if PD
+ t_disarray *x = (t_disarray *)pd_new(disarray_class);
+ outlet_new(&x->x_obj, gensym("signal"));
+ x->list_outlet = outlet_new(&x->x_obj,gensym("list"));
+#endif
+
+// INITIALIZATIONS
+
+
+ srand( time( 0 ) );
+
+ x->D = sys_getblksize();
+ x->R = sys_getsr();
+ x->top_frequency = atom_getfloatarg(0,argc,argv);
+ x->overlap = atom_getintarg(1,argc,argv);
+ x->winfac = atom_getintarg(2,argc,argv);
+
+ if(!power_of_two(x->overlap))
+ x->overlap = 4;
+ if(!power_of_two(x->winfac))
+ x->winfac = 1;
+ disarray_init(x,0);
+ return (x);
+}
+
+
+void disarray_init(t_disarray *x, short initialized)
+{
+ int i;
+ float curfreq;
+
+
+ if(!power_of_two(x->winfac)){
+ x->winfac = 1;
+ }
+ if(!power_of_two(x->overlap)){
+ x->overlap = 4;
+ }
+
+ x->N = x->D * x->overlap;
+ 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);
+
+ x->c_fundamental = (float) x->R/(float)( (x->N2)<<1 );
+ x->mult = 1. / (float) x->N;
+
+ x->lock = 1;
+
+ if(initialized == 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->output = (float *) calloc( (MAX_Nw) , sizeof(float));
+ x->buffer = (float *) calloc( (MAX_N), sizeof(float));
+ x->channel = (float *) calloc( ((MAX_N+2)) , sizeof(float));
+ x->bitshuffle = (int *) calloc( ((MAX_N * 2)) , sizeof(int));
+ x->trigland = (float *) calloc( ((MAX_N * 2)) , sizeof(float));
+ x->shuffle_in = (int *) calloc( (MAX_N2), sizeof(int) ) ;
+ x->shuffle_out = (int *) calloc( (MAX_N2), sizeof(int) ) ;
+ x->list_data = (t_atom *) calloc( ((MAX_N+2)) , sizeof(t_atom) ) ;
+ x->mute = 0;
+ x->bypass = 0;
+ x->shuffle_count = 0;
+
+ } else {
+ 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));
+ }
+
+
+ init_rdft( x->N, x->bitshuffle, x->trigland);
+ makewindows( x->Hwin, x->Wanal, x->Wsyn, x->Nw, x->N, x->D);
+
+
+ if(initialized != 2){
+ if( x->top_frequency < x->c_fundamental || x->top_frequency > 20000) {
+ x->top_frequency = 1000.0 ;
+ }
+ x->max_bin = 1;
+ curfreq = 0;
+ while( curfreq < x->top_frequency ) {
+ ++(x->max_bin);
+ curfreq += x->c_fundamental ;
+ }
+
+ reset_shuffle(x); // set shuffle lookup
+ x->shuffle_count = 0;
+ }
+ x->lock = 0;
+}
+
+
+void disarray_mute(t_disarray *x, t_floatarg toggle)
+{
+ x->mute = (short)toggle;
+// post("muted: %d", x->mute);
+}
+
+void disarray_bypass(t_disarray *x, t_floatarg toggle)
+{
+ x->bypass = (short)toggle;
+}
+
+
+t_int *disarray_perform(t_int *w)
+{
+ t_disarray *x = (t_disarray *) (w[1]);
+ t_float *in = (t_float *)(w[2]);
+ t_float *out = (t_float *)(w[3]);
+ int n = w[4];
+
+ int R = x->R;
+ int Nw = x->Nw;
+ int N = x->N ;
+ int N2 = x-> N2;
+ int Nw2 = x->Nw2;
+ float *Wanal = x->Wanal;
+ float *Wsyn = x->Wsyn;
+ float *Hwin = x->Hwin;
+
+ float *input = x->input;
+ float *output = x->output;
+ float *buffer = x->buffer;
+ float *channel = x->channel;
+ int i,j;
+ int inCount = x->inCount;
+
+ int D = x->D;
+ float tmp;
+
+ int shuffle_count = x->shuffle_count;
+
+ float mult = x->mult ;
+ int *bitshuffle = x->bitshuffle;
+ float *trigland = x->trigland ;
+ int *shuffle_in = x->shuffle_in;
+ int *shuffle_out = x->shuffle_out;
+
+ if( x->mute || x->lock ){
+ while( n-- ){
+ *out++ = 0.0;
+ }
+ return (w+5);
+ }
+
+ if( x->bypass ){
+ while( n-- ){
+ *out++ = *in++ * 0.5; // gain compensation
+ }
+ return (w+5);
+ }
+
+ 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);
+
+ for( i = 0; i < shuffle_count ; i++){
+ tmp = channel[ shuffle_in[ i ] * 2 ];
+ channel[ shuffle_in[ i ] * 2] = channel[ shuffle_out[ i ] * 2];
+ channel[ shuffle_out[ i ] * 2] = tmp;
+ }
+
+ 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 */
+ x->inCount = inCount % Nw;
+
+ return (w+5);
+}
+
+void iswitch_count(t_disarray *x, t_int i)
+{
+ switch_count(x,(t_floatarg)i);
+}
+
+void switch_count (t_disarray *x, t_floatarg i)
+{
+ if( i < 0 ){
+ i = 0;
+ }
+ if( i > x->N2 ) {
+ i = x->N2;
+ }
+ x->shuffle_count = i;
+}
+
+void reset_shuffle (t_disarray *x)
+{
+int i;
+int temp, p1, p2;
+int max;
+
+//post("max bin %d",x->max_bin);
+max = x->max_bin;
+ for( i = 0; i < x->N2; i++ ) {
+ x->shuffle_out[i] = x->shuffle_in[i] = i ;
+ }
+
+ for( i = 0; i < 10000; i++ ) {
+ p1 = x->shuffle_out[ rand_index( max ) ];
+ p2 = x->shuffle_out[ rand_index( max ) ];
+ temp = x->shuffle_out[ p1 ];
+ x->shuffle_out[ p1 ] = x->shuffle_out[ p2 ];
+ x->shuffle_out[ p2 ] = temp;
+ }
+
+}
+
+int rand_index( int max) {
+ return ( rand() % max );
+}
+
+void disarray_dsp(t_disarray *x, t_signal **sp, short *count)
+{
+
+ if(x->D != sp[0]->s_n ||x->D != sp[0]->s_n ) {
+ x->R = sp[0]->s_sr;
+ x->D = sp[0]->s_n;
+ disarray_init(x,1);
+ }
+ dsp_add(disarray_perform, 4, x, sp[0]->s_vec, sp[1]->s_vec, sp[0]->s_n);
+}
+
+// ENTER STORED SHUFFLE
+void disarray_list (t_disarray *x, t_symbol *msg, short argc, t_atom *argv) {
+ short i;
+ int ival;
+ x->shuffle_count = argc;
+ for (i=0; i < argc; i++) {
+
+ ival = (int)atom_getfloatarg(i,argc,argv);
+
+
+ if ( ival < x->N2 ) {
+ x->shuffle_out[ i ] = ival;
+ } else {
+ post ("%d out of range",ival);
+ }
+ }
+ return;
+}
+
+void disarray_setstate (t_disarray *x, t_symbol *msg, short argc, t_atom *argv) {
+ short i;
+ int ival;
+
+ x->shuffle_count = argc;
+ for (i=0; i < argc; i++) {
+ ival = atom_getfloatarg(i,argc,argv);
+
+ if ( ival < x->N2 && ival >= 0) {
+ x->shuffle_out[ i ] = ival;
+ } else {
+ error("%s: %d is out of range",OBJECT_NAME, ival);
+ }
+ }
+ return;
+}
+
+// REPORT CURRENT SHUFFLE STATUS
+void disarray_showstate (t_disarray *x ) {
+
+ t_atom *list_data = x->list_data;
+
+ short i;
+#if MSP
+ for( i = 0; i < x->shuffle_count; i++ ) {
+ SETLONG(list_data+i,x->shuffle_out[i]);
+ }
+#endif
+
+#if PD
+ for( i = 0; i < x->shuffle_count; i++ ) {
+ SETFLOAT(list_data+i,(float)x->shuffle_out[i]);
+ }
+#endif
+ outlet_list(x->list_outlet,0,x->shuffle_count,list_data);
+
+ return;
+}
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