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
---
 presidency~.c | 760 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 760 insertions(+)
 create mode 100644 presidency~.c

(limited to 'presidency~.c')

diff --git a/presidency~.c b/presidency~.c
new file mode 100644
index 0000000..3e78243
--- /dev/null
+++ b/presidency~.c
@@ -0,0 +1,760 @@
+#include "MSPd.h"
+#include "fftease.h"
+
+#if MSP
+void *presidency_class;
+#endif 
+
+#if PD
+static t_class *presidency_class;
+#endif
+
+#define OBJECT_NAME "presidency~"
+
+typedef struct _presidency
+{
+#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;
+  float **loveboat;
+  float current_frame;
+  float *local_frame; // needs mem allocation in init
+  int framecount;
+  float lo_freq;
+  float hi_freq;
+  float topfreq;
+  float curfreq;
+  float P;
+  int lo_bin;
+  int hi_bin;
+  float i_vector_size;
+  float vector_size;
+  float synthesis_threshold;
+  float pitch_increment;
+  // oscillator
+  float *table;
+  float *bindex;
+  float *lastamp;// stores last amplitudes for each bin
+  float *lastfreq;// stores last frequencies
+  float table_si;
+  int table_length;
+  //
+  float frame_increment ;
+  float fpos;
+  float last_fpos;
+  float tadv;
+  // for convert
+  float *c_lastphase_in;
+  float *c_lastphase_out;
+  float c_fundamental;
+  float c_factor_in;
+  float c_factor_out;
+  // faster fft
+  float mult; 
+  float *trigland;
+  int *bitshuffle;
+  int read_me;
+  int frames_read;
+  //  int MAXFRAMES;
+  short mute;
+  short virgin;
+  short playthrough;
+  short in2_connected;
+  short in3_connected;
+  short in4_connected;
+  int overlap;
+  int winfac;
+  int hopsize;
+  float duration;
+  short lock;
+  short verbose;
+  short override;
+  float sync;
+} t_presidency;
+
+void *presidency_new(t_symbol *s, int argc, t_atom *argv);
+t_int *presidency_perform(t_int *w);
+void presidency_dsp(t_presidency *x, t_signal **sp, short *count);
+void presidency_assist(t_presidency *x, void *b, long m, long a, char *s);
+void presidency_bangname(t_presidency *x) ;
+
+void presidency_playthrough( t_presidency *x, t_floatarg tog) ;
+void presidency_float(t_presidency *x, double f) ;
+void presidency_int(t_presidency *x, long i);
+void presidency_mute(t_presidency *x, t_floatarg tog);
+void presidency_free(t_presidency *x);
+void presidency_init(t_presidency *x, short initialized);
+void presidency_size(t_presidency *x, t_floatarg newsize);
+void presidency_winfac(t_presidency *x, t_floatarg factor);
+void presidency_overlap(t_presidency *x, t_floatarg o);
+void presidency_fftinfo(t_presidency *x) ;
+void presidency_verbose(t_presidency *x, t_floatarg t);
+void presidency_acquire_sample(t_presidency *x);
+void presidency_low_freq(t_presidency *x, t_floatarg f);
+void presidency_high_freq(t_presidency *x, t_floatarg f);
+void presidency_calc_bins_from_freqs(t_presidency *x);
+void presidency_abs_thresh(t_presidency *x, t_floatarg t);
+
+#if MSP
+void main(void)
+{
+  setup((t_messlist **)&presidency_class, (method)presidency_new, (method)presidency_free, 
+	(short)sizeof(t_presidency), 0, A_GIMME,0);
+  addmess((method)presidency_dsp, "dsp", A_CANT, 0);
+  addmess((method)presidency_assist,"assist",A_CANT,0);
+  addfloat((method)presidency_float);
+  addint((method)presidency_int);
+  addbang((method)presidency_bangname);
+  addmess((method)presidency_mute, "mute", A_FLOAT, 0);
+  addmess((method)presidency_fftinfo, "fftinfo",  0);
+  addmess((method)presidency_playthrough, "playthrough", A_DEFFLOAT, 0);
+  addmess((method)presidency_size, "size", A_DEFFLOAT, 0);
+  addmess((method)presidency_overlap, "overlap", A_DEFFLOAT, 0);
+  addmess((method)presidency_winfac, "winfac", A_DEFFLOAT, 0);
+  addmess((method)presidency_verbose, "verbose", A_DEFFLOAT, 0);
+  addmess((method)presidency_low_freq, "low_freq", A_DEFFLOAT, 0);
+  addmess((method)presidency_high_freq, "high_freq", A_DEFFLOAT, 0);
+  addmess((method)presidency_acquire_sample, "acquire_sample", 0);
+  addmess((method)presidency_abs_thresh, "abs_thresh", A_FLOAT, 0);
+  dsp_initclass();
+  post("%s %s",OBJECT_NAME,FFTEASE_ANNOUNCEMENT);
+}
+#endif
+
+#if PD
+void presidency_tilde_setup(void)
+{
+  presidency_class = class_new(gensym("presidency~"), (t_newmethod)presidency_new, 
+			 (t_method)presidency_free ,sizeof(t_presidency), 0,A_GIMME,0);
+  CLASS_MAINSIGNALIN(presidency_class, t_presidency, x_f);
+  class_addmethod(presidency_class,(t_method)presidency_dsp,gensym("dsp"),0);
+  class_addmethod(presidency_class,(t_method)presidency_mute,gensym("mute"),A_FLOAT,0);
+  class_addmethod(presidency_class,(t_method)presidency_fftinfo,gensym("fftinfo"),0);
+  class_addmethod(presidency_class,(t_method)presidency_playthrough,gensym("playthrough"),A_FLOAT,0); 
+  class_addmethod(presidency_class,(t_method)presidency_size,gensym("size"),A_FLOAT,0);
+  class_addmethod(presidency_class,(t_method)presidency_overlap,gensym("overlap"),A_FLOAT,0); 
+  class_addmethod(presidency_class,(t_method)presidency_winfac,gensym("winfac"),A_FLOAT,0);  
+  class_addmethod(presidency_class,(t_method)presidency_verbose,gensym("verbose"),A_FLOAT,0);
+  class_addmethod(presidency_class,(t_method)presidency_acquire_sample,gensym("acquire_sample"),0);
+  class_addmethod(presidency_class,(t_method)presidency_low_freq,gensym("low_freq"),A_FLOAT,0);
+  class_addmethod(presidency_class,(t_method)presidency_high_freq,gensym("high_freq"),A_FLOAT,0);
+  class_addmethod(presidency_class,(t_method)presidency_abs_thresh,gensym("abs_thresh"),A_FLOAT,0);
+  post("%s %s",OBJECT_NAME,FFTEASE_ANNOUNCEMENT);
+}
+#endif
+
+void presidency_abs_thresh(t_presidency *x, t_floatarg f)
+{
+	if(f < 0){
+		error("illegal value for threshold");
+		return;
+	}
+	x->synthesis_threshold = f;
+}
+
+void presidency_low_freq(t_presidency *x, t_floatarg f)
+{
+	if(f > x->hi_freq || f < 0){
+		error("illegal value for low freq");
+		return;
+	}
+	x->lo_freq = f;
+	presidency_calc_bins_from_freqs(x);
+}
+
+void presidency_high_freq(t_presidency *x, t_floatarg f)
+{
+	if(f < x->lo_freq || f > x->R/2.0){
+		error("illegal value for high freq");
+		return;
+	}
+	x->hi_freq = f;
+	presidency_calc_bins_from_freqs(x);
+}
+
+void presidency_calc_bins_from_freqs(t_presidency *x)
+{
+  x->hi_bin = 1;  
+  x->curfreq = 0;
+  
+  if( x->c_fundamental <= 0){
+	error("we're not yet fully initialized. Try turning on DACs first");
+	return;
+  }
+  
+  while( x->curfreq < x->hi_freq ) {
+    ++(x->hi_bin);
+    x->curfreq += x->c_fundamental ;
+  }
+
+  x->lo_bin = 0;  
+  x->curfreq = 0;
+  while( x->curfreq < x->lo_freq ) {
+    ++(x->lo_bin);
+    x->curfreq += x->c_fundamental ;
+  }
+
+  if( x->hi_bin > x->N2)
+    x->hi_bin = x->N2 ;
+  if(x->lo_bin > x->hi_bin)
+	x->lo_bin = x->hi_bin;
+//  post("hibin: %d lobin %d",x->hi_bin, x->lo_bin);
+}
+
+
+void presidency_overlap(t_presidency *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;
+	presidency_init(x,1);
+}
+
+void presidency_winfac(t_presidency *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;
+	presidency_init(x,2);
+}
+
+void presidency_fftinfo(t_presidency *x)
+{
+  if( ! x->overlap ){
+    post("zero overlap!");
+    return;
+  }
+  post("%s: FFT size %d, hopsize %d, winfac %d", OBJECT_NAME, x->N, x->N/x->overlap, x->Nw);
+}
+
+void presidency_verbose(t_presidency *x, t_floatarg t)
+{
+  x->verbose = t;
+}
+
+void presidency_size(t_presidency *x, t_floatarg newsize)
+{
+//protect with DACs off?
+
+  if(newsize > 0.0){//could be horrendous size, but that's the user's problem
+  	x->duration = newsize/1000.0;
+	presidency_init(x,1);  	
+  }
+}
+
+void presidency_playthrough (t_presidency *x, t_floatarg tog)
+{
+  x->playthrough = tog;
+}
+
+void presidency_free(t_presidency *x){
+  int i ;
+#if MSP
+  dsp_free((t_pxobject *)x);
+#endif
+  for(i = 0; i < x->framecount; i++){
+    freebytes(x->loveboat[i],0) ;
+  }
+  freebytes(x->loveboat,0);
+  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->local_frame,0);
+}
+
+
+
+void presidency_init(t_presidency *x, short initialized)
+{
+	int i;
+	long oldsize,newsize;
+	int oldN = x->N;
+	int oldN2 = x->N2;
+	int oldNw = x->Nw;
+	int last_framecount = x->framecount;
+	x->lock = 1;
+	x->virgin = 1;
+	
+	if(!power_of_two(x->winfac))
+		x->winfac = 1;
+	if(!power_of_two(x->overlap))
+		x->overlap = 4;
+	if(!x->R)
+		x->R = 44100;
+	if(!x->D){
+		x->D = 256;
+		x->vector_size = x->D;
+	}
+	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->mult = 1. / (float) x->N;
+//	post("mult %f N %d",x->mult,x->N);
+	x->current_frame = 0;
+	x->fpos = x->last_fpos = 0;
+	x->tadv = (float)x->D/(float)x->R;
+	x->c_fundamental = (float)x->R/((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->table_length = 8192;
+	x->table_si = (float) x->table_length / (float) x->R;
+	x->pitch_increment = 1.0 * x->table_si;
+	
+	if( x->duration <= 0 ){
+		x->duration = 1.0;
+	}
+	
+	x->framecount =  x->duration / x->tadv ;
+	x->hopsize = (float)x->N / x->overlap;
+	x->read_me = 0;
+	
+	if(!initialized){
+		x->mute = 0;
+		x->in2_connected = 0;
+		x->in3_connected = 0;
+		x->sync = 0;
+		x->playthrough = 0;
+		x->frame_increment = 1.0;
+		x->verbose = 0;
+		x->table = (float *) getbytes(x->table_length * sizeof(float));
+		x->Wanal = (float *) getbytes(MAX_Nw*sizeof(float));	
+		x->Wsyn = (float *) getbytes(MAX_Nw*sizeof(float));	
+		x->input = (float *) getbytes(MAX_Nw*sizeof(float));	
+		x->Hwin = (float *) getbytes(MAX_Nw*sizeof(float));
+		x->bindex = (float *) getbytes( (MAX_N+1) * sizeof(float) );
+		x->buffer = (float *) getbytes(MAX_N*sizeof(float));
+		x->channel = (float *) getbytes((MAX_N+2)*sizeof(float));
+		x->output = (float *) getbytes(MAX_Nw*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->local_frame = (float *) getbytes((MAX_N+2)*sizeof(float));
+		x->loveboat = (float **) getbytes(x->framecount*sizeof(float *));
+		
+
+		/* here we stay with old reallocation approach and pray */
+		for(i=0;i<x->framecount;i++){
+			x->loveboat[i] = (float *) getbytes(((x->N)+2)*sizeof(float));
+			if(x->loveboat[i] == NULL){
+				error("memory error");
+				return;
+			}
+			memset((char *)x->loveboat[i],0,(x->N+2)*sizeof(float));
+		}
+	} else if(initialized == 1) {
+		//free and allocate
+		oldsize = (oldN+2)*sizeof(float);
+		for(i = 0; i < last_framecount; i++){
+			freebytes(x->loveboat[i],oldsize) ;
+		}
+		oldsize = last_framecount*sizeof(float *);
+		freebytes(x->loveboat,oldsize);
+		x->loveboat = (float **) getbytes(x->framecount*sizeof(float *));  
+		for(i=0;i<x->framecount;i++){
+			x->loveboat[i] = (float *) getbytes((x->N+2)*sizeof(float));
+			if(x->loveboat[i] == NULL){
+				error("memory error");
+				return;
+			}
+			memset((char *)x->loveboat[i],0,(x->N+2)*sizeof(float));
+		}
+	}  
+	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->lastamp,0,(x->N+1)*sizeof(float));
+	memset((char *)x->lastfreq,0,(x->N+1)*sizeof(float));
+	memset((char *)x->bindex,0,(x->N+1)*sizeof(float));
+	memset((char *)x->buffer,0,x->N * sizeof(float));
+	if(!x->vector_size){
+		post("zero vector size - something is really screwed up here!");
+		return;
+	}
+	for ( i = 0; i < x->table_length; i++ ) {
+		x->table[i] = (float) x->N * cos((float)i * TWOPI / (float)x->table_length);
+	}	
+	x->c_fundamental =  (float) x->R/(float)x->N ;
+	x->c_factor_in =  (float) x->R/((float)x->vector_size * TWOPI);
+	
+	if( x->hi_freq < x->c_fundamental ) {
+		x->hi_freq = x->topfreq ;
+	}
+	x->hi_bin = 1;  
+	x->curfreq = 0;
+	while( x->curfreq < x->hi_freq ) {
+		++(x->hi_bin);
+		x->curfreq += x->c_fundamental ;
+	}
+	
+	x->lo_bin = 0;  
+	x->curfreq = 0;
+	while( x->curfreq < x->lo_freq ) {
+		++(x->lo_bin);
+		x->curfreq += x->c_fundamental ;
+	}
+	
+	if( x->hi_bin > x->N2)
+		x->hi_bin = x->N2 ;
+	if(x->lo_bin > x->hi_bin)
+		x->lo_bin = x->hi_bin;
+	
+	x->i_vector_size = 1.0/x->vector_size;
+	x->pitch_increment = x->P*x->table_length/x->R;
+	
+	makewindows( x->Hwin, x->Wanal, x->Wsyn, x->Nw, x->N, x->D);
+	init_rdft( x->N, x->bitshuffle, x->trigland);
+
+		  
+	x->lock = 0;
+}
+
+void *presidency_new(t_symbol *s, int argc, t_atom *argv)
+{
+#if MSP
+  t_presidency *x = (t_presidency *)newobject(presidency_class);
+  dsp_setup((t_pxobject *)x,4);
+  outlet_new((t_pxobject *)x, "signal");
+  outlet_new((t_pxobject *)x, "signal");
+#endif
+
+#if PD
+  t_presidency *x = (t_presidency *)pd_new(presidency_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"));
+  inlet_new(&x->x_obj, &x->x_obj.ob_pd,gensym("signal"), gensym("signal"));
+  outlet_new(&x->x_obj, gensym("signal"));
+  outlet_new(&x->x_obj, gensym("signal"));
+#endif
+
+  x->duration = atom_getfloatarg(0,argc,argv)/1000.0;
+  x->lo_freq = atom_getfloatarg(1,argc,argv);
+  x->hi_freq = atom_getfloatarg(2,argc,argv);
+  x->overlap = atom_getfloatarg(3,argc,argv);
+  x->winfac = atom_getfloatarg(4,argc,argv);
+
+  x->D = sys_getblksize();
+  x->R = sys_getsr();
+  x->vector_size = x->D;
+
+  x->topfreq = 3000.; // default top freq
+  if(!x->lo_freq){
+	x->lo_freq = 0;
+  }
+  if(!x->hi_freq)
+	x->hi_freq = 4000.0;
+	
+  presidency_init(x,0);
+
+  return (x);
+}
+
+t_int *presidency_perform(t_int *w)
+{	
+  int i, j;
+  float sample;
+
+  ////////////////////////////////////////////// 
+  t_presidency *x = (t_presidency *) (w[1]);
+  t_float *in = (t_float *)(w[2]);
+  t_float *speed = (t_float *)(w[3]);
+  t_float *position = (t_float *)(w[4]);
+  t_float *pinc = (t_float *)(w[5]);
+  t_float *out = (t_float *)(w[6]);
+  t_float *sync_vec = (t_float *)(w[7]);
+  t_int n = w[8];
+	
+  int inCount = x->inCount;
+  int R = x->R;
+  int N = x->N;
+  int N2 = x->N2;
+  int D = x->D;
+  int vector_size = x->D;
+  int Nw = x->Nw;
+  float *Wanal = x->Wanal;
+  float *Wsyn = x->Wsyn;		
+  float *input = x->input;
+  float *output = x->output;
+  float *buffer = x->buffer;
+  float *channel = x->channel;
+  float *local_frame = x->local_frame;
+  float fframe = x->current_frame ;
+  float last_fpos = x->last_fpos ;
+  int framecount = x->framecount;
+  float fincr = x->frame_increment;
+  float fpos = x->fpos;
+  float pitch_increment = x->pitch_increment;
+  float mult = x->mult;
+  int *bitshuffle = x->bitshuffle;
+  float *trigland = x->trigland ;
+  float *c_lastphase_in = x->c_lastphase_in;
+  float *c_lastphase_out = x->c_lastphase_out;
+  float c_fundamental = x->c_fundamental;
+  float c_factor_in = x->c_factor_in;
+  float c_factor_out = x->c_factor_out;
+  float table_si = x->table_si;
+  int lo_bin = x->lo_bin;
+  int hi_bin = x->hi_bin;
+  float i_vector_size = x->i_vector_size;
+  float synthesis_threshold = x->synthesis_threshold;
+  float *lastfreq = x->lastfreq;
+  float *lastamp = x->lastamp;
+  float *bindex = x->bindex;
+  float *table = x->table;
+  int table_length = x->table_length;
+  float sync = x->sync;
+
+
+  if(x->lock || x->mute){
+  	while(n--){
+  	  *out++ = 0.0;
+  	  *sync_vec++ = sync;
+  	}
+  	return (w+9);
+  }
+  
+#if MSP
+  if (x->in2_connected) {
+    fincr = *speed; 
+  } 
+  if (x->in3_connected) {
+    fpos = *position; 
+  } 
+  if (x->in4_connected) {
+    pitch_increment = *pinc * table_si; 
+  } 
+#endif
+
+#if PD
+  fincr = *speed;
+  fpos = *position;
+  pitch_increment = *pinc * table_si;
+#endif
+
+  inCount += D;
+
+  if(x->read_me) {
+    for ( j = 0 ; j < Nw - D ; j++ ){
+      input[j] = input[j+D];
+    }
+    for (j = Nw - D; j < Nw; j++) {
+      input[j] = *in++;
+    }
+
+    if( x->playthrough ){
+      for ( j = N-D; j < N; j++ ) {
+	    *out++ = input[j] * 0.5;
+      }
+    }
+    else { 
+      for ( j = 0; j < D; j++ ){
+	    *out++ = 0.0;
+      }
+    }
+
+    fold(input, Wanal, Nw, buffer, N, inCount);	
+    rdft(N, 1, buffer, bitshuffle, trigland);
+    sync = (float) x->frames_read / (float) framecount;
+    if(x->frames_read >= framecount){
+      sync = 1.0;
+      x->read_me = 0;
+      if(x->verbose){
+      	post("presidency: data acquisition completed");
+      }
+    } else {
+      convert(buffer, x->loveboat[(x->frames_read)++], N2, c_lastphase_in, c_fundamental, c_factor_in);
+    }
+    x->virgin = 0;
+    for ( j = 0; j < D; j++ ){
+	    *sync_vec++ = sync;
+    }
+
+  } 
+  else if(x->playthrough && x->virgin){
+      while(n--){
+	  	 sample = *in++ * 0.5;
+		   *out++ = sample;
+		   *sync_vec++ = sync;
+      }
+  }
+  /* synthesis section */
+  else {
+    if(fpos < 0)
+      fpos = 0;
+    if(fpos > 1)
+      fpos = 1;
+    if(fpos != last_fpos){
+      fframe =  fpos * (float) framecount;
+      last_fpos = fpos;
+    }
+
+
+    fframe += fincr;
+    while(fframe >= framecount) {
+      fframe -= framecount;
+    } 
+    while( fframe < 0. ) {
+      fframe += framecount ;
+    }
+	// copy stored frame to local for possible modifications
+    for(i = 0; i < N; i++){
+		local_frame[i] = x->loveboat[(int) fframe ][i];
+	}
+
+	for( i = lo_bin * 2 + 1; i < hi_bin * 2 + 1; i += 2 ){
+	  local_frame[i] *= pitch_increment;
+    }
+
+  bloscbank(local_frame, output, D, i_vector_size, lastfreq, lastamp, 
+  	bindex, table, table_length, synthesis_threshold, lo_bin, hi_bin);
+
+    for ( j = 0; j < D; j++ ){
+      *out++ = output[j] * mult;
+      *sync_vec++ = sync;
+    }
+    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;
+  x->current_frame = fframe;
+  x->frame_increment = fincr;
+  x->fpos = fpos;
+  x->last_fpos = last_fpos;
+  x->pitch_increment = pitch_increment;
+  x->sync = sync;
+  return (w+9);
+}		
+
+#if MSP
+void presidency_int(t_presidency *x, long i)
+{
+	presidency_float(x,(float)i);
+}
+
+void presidency_float(t_presidency *x, double f) // Look at floats at inlets
+{
+  int inlet = ((t_pxobject*)x)->z_in;
+	
+  if (inlet == 1) {
+      x->frame_increment = f;
+  }
+  else if (inlet == 2){
+      if (f < 0 ){
+      	f = 0;
+      } else if(f > 1) {
+       	f = 1.;
+      }
+      x->fpos = f;
+  } 
+  else if( inlet == 3 ){
+  	  x->pitch_increment = f * x->table_si;
+  }
+}
+#endif
+
+void presidency_acquire_sample(t_presidency *x)
+{
+  x->read_me = 1;
+  x->frames_read = 0;
+  if(x->verbose)
+	post("%: beginning spectral data acquisition",OBJECT_NAME);
+}
+
+void presidency_bangname (t_presidency *x)
+{
+  x->read_me = 1;
+  x->frames_read = 0;
+  if(x->verbose)
+  	post("%s: beginning spectral data acquisition",OBJECT_NAME);
+}
+
+void presidency_mute(t_presidency *x, t_floatarg tog)
+{
+  x->mute = (short)tog;	
+}
+
+void presidency_dsp(t_presidency *x, t_signal **sp, short *count)
+{
+#if MSP
+  x->in2_connected = count[1];
+  x->in3_connected = count[2];
+  x->in4_connected = count[3];
+#endif
+		
+  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;
+  	x->vector_size = x->D;
+    if(x->verbose)
+      post("new vsize: %d, new SR:%d",x->D,x->R);
+    presidency_init(x,1);
+  }
+  
+  dsp_add(presidency_perform, 8, x, sp[0]->s_vec, sp[1]->s_vec, sp[2]->s_vec,  
+	  sp[3]->s_vec, sp[4]->s_vec, sp[5]->s_vec, sp[0]->s_n);
+}
+
+void presidency_assist(t_presidency *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) Frame Increment"); break;
+    case 2: sprintf(dst,"(signal/float) Frame Position [0-1]"); break;
+	  case 3: sprintf(dst,"(signal/float) Transposition Factor"); break;
+    }
+  } else if (msg==2) {
+    switch (arg) {
+    case 0: sprintf(dst,"(signal) Output"); break;
+    case 1: sprintf(dst,"(signal/float) Record Sync"); break;
+    }
+  }
+}
-- 
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