From b418fb91e7bb45d7b5f1eb8b19703441ae94eb13 Mon Sep 17 00:00:00 2001
From: Hans-Christoph Steiner <eighthave@users.sourceforge.net>
Date: Thu, 9 Feb 2006 16:18:39 +0000
Subject: got everything building and working, including building
 single-object/single-file objects with a shared dylib.  Now got to get it
 integrated into the build system

svn path=/trunk/externals/fftease/; revision=4574
---
 dentist~.c | 693 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 693 insertions(+)
 create mode 100644 dentist~.c

(limited to 'dentist~.c')

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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