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
---
 pvharm~.c | 581 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 581 insertions(+)
 create mode 100644 pvharm~.c

(limited to 'pvharm~.c')

diff --git a/pvharm~.c b/pvharm~.c
new file mode 100644
index 0000000..6952960
--- /dev/null
+++ b/pvharm~.c
@@ -0,0 +1,581 @@
+#include "MSPd.h"
+#include "fftease.h"
+
+#if MSP
+void *pvharm_class;
+#endif 
+
+#if PD
+static t_class *pvharm_class;
+#endif
+
+#define OBJECT_NAME "pvharm~"
+
+typedef struct _pvharm
+{
+#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;
+	
+	float *table;
+	int NP;
+	
+	int L;
+	int first;
+	float Iinv;
+	
+	float ffac;
+	// for oscbank 1
+	float *lastamp;
+	float *lastfreq;
+	float *index;
+	int lo_bin;
+	int hi_bin;
+	float topfreq;
+	float P;
+	float myPInc;
+	//
+	// for oscbank 2
+	float *lastamp2;
+	float *lastfreq2;
+	float *index2;
+	int lo_bin2;
+	int hi_bin2;
+	float topfreq2;
+	float P2;
+	float myPInc2;
+	//
+	
+	float synt;
+	float myPI;
+	float TWOmyPI;
+	// for fast fft
+	float mult; 
+	float *trigland;
+	int *bitshuffle;
+	short pitch1_connected;
+	short pitch2_connected;
+	short synt_connected;
+	short mute;
+	int vs;//vector size
+		int overlap;//overlap factor
+			int winfac;//window size factor
+				float hifreq;//highest frequency to synthesize
+					float lofreq;//lowest frequency to synthesize
+} t_pvharm;
+
+void *pvharm_new(t_symbol *s, int argc, t_atom *argv);
+t_int *offset_perform(t_int *w);
+t_int *pvharm_perform(t_int *w);
+void pvharm_dsp(t_pvharm *x, t_signal **sp, short *count);
+void pvharm_assist(t_pvharm *x, void *b, long m, long a, char *s);
+void pvharm_float(t_pvharm *x, double f);
+void pvharm_mute(t_pvharm *x, t_floatarg f);
+void pvharm_init(t_pvharm *x, short initialized);
+void pvharm_lowfreq(t_pvharm *x, t_floatarg f);
+void pvharm_highfreq(t_pvharm *x, t_floatarg f);
+void pvharm_free(t_pvharm *x);
+void pvharm_fftinfo(t_pvharm *x);
+void pvharm_overlap(t_pvharm *x, t_floatarg f);
+void pvharm_winfac(t_pvharm *x, t_floatarg f);
+
+#if MSP
+void main(void)
+{
+	setup((t_messlist **) &pvharm_class, (method) pvharm_new, (method)pvharm_free, 
+		  (short)sizeof(t_pvharm), 0, A_GIMME, 0);
+	addmess((method)pvharm_dsp, "dsp", A_CANT, 0);
+	addmess((method)pvharm_assist,"assist",A_CANT,0);
+	addmess((method)pvharm_mute,"mute",A_DEFFLOAT,0);
+	
+	addmess((method)pvharm_lowfreq,"lowfreq",A_FLOAT,0);
+	addmess((method)pvharm_highfreq,"highfreq",A_FLOAT,0);
+	addmess((method)pvharm_overlap,"overlap",A_DEFFLOAT,0);
+	addmess((method)pvharm_winfac,"winfac",A_DEFFLOAT,0);
+	addmess((method)pvharm_fftinfo,"fftinfo",0);  addfloat((method)pvharm_float);
+	dsp_initclass();
+	post("%s %s",OBJECT_NAME,FFTEASE_ANNOUNCEMENT);
+}
+#endif
+
+#if PD
+void pvharm_tilde_setup(void)
+{
+	pvharm_class = class_new(gensym("pvharm~"), (t_newmethod)pvharm_new, 
+							 (t_method)pvharm_free ,sizeof(t_pvharm), 0,A_GIMME,0);
+	CLASS_MAINSIGNALIN(pvharm_class, t_pvharm, x_f);
+	class_addmethod(pvharm_class, (t_method)pvharm_dsp, gensym("dsp"), 0);
+	class_addmethod(pvharm_class, (t_method)pvharm_assist, gensym("assist"), 0);
+	class_addmethod(pvharm_class, (t_method)pvharm_mute, gensym("mute"), A_DEFFLOAT,0);
+	class_addmethod(pvharm_class, (t_method)pvharm_highfreq, gensym("highfreq"), A_DEFFLOAT,0);
+	class_addmethod(pvharm_class, (t_method)pvharm_lowfreq, gensym("lowfreq"), A_DEFFLOAT,0);
+	class_addmethod(pvharm_class,(t_method)pvharm_overlap,gensym("overlap"),A_FLOAT,0);
+	class_addmethod(pvharm_class,(t_method)pvharm_winfac,gensym("winfac"),A_FLOAT,0);
+	class_addmethod(pvharm_class,(t_method)pvharm_fftinfo,gensym("fftinfo"),0); 
+	post("%s %s",OBJECT_NAME,FFTEASE_ANNOUNCEMENT);
+}
+#endif
+
+void pvharm_free(t_pvharm *x)
+{
+#if MSP
+	dsp_free((t_pxobject *) x);
+#endif
+	freebytes(x->c_lastphase_in,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->lastamp2,0);
+	freebytes(x->lastfreq,0);
+	freebytes(x->lastfreq2,0);
+	freebytes(x->index,0);
+	freebytes(x->index2,0);
+	freebytes(x->table,0);
+}
+
+void pvharm_assist (t_pvharm *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 Multiplier 1"); break;
+			case 2: sprintf(dst,"(signal/float) Pitch Multiplier 2"); break;
+			case 3: sprintf(dst,"(signal/float) Synthesis Threshold"); break;
+		}
+	} else if (msg==2) {
+		sprintf(dst,"(signal) Output");
+	}
+}
+
+void pvharm_overlap(t_pvharm *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;
+	pvharm_init(x,1);
+}
+
+void pvharm_winfac(t_pvharm *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;
+	pvharm_init(x,2);
+}
+
+void pvharm_fftinfo(t_pvharm *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 pvharm_highfreq(t_pvharm *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 pvharm_lowfreq(t_pvharm *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 *pvharm_new(t_symbol *s, int argc, t_atom *argv)
+{
+	//  int i;
+#if MSP
+	t_pvharm *x = (t_pvharm *)newobject(pvharm_class);
+	dsp_setup((t_pxobject *)x,4);
+	outlet_new((t_pxobject *)x, "signal");
+#endif
+#if PD
+	t_pvharm *x = (t_pvharm *)pd_new(pvharm_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"));
+#endif
+	
+	x->vs = sys_getblksize();
+	x->R = sys_getsr();
+	
+	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;
+	
+	pvharm_init(x,0);
+	return (x);
+}
+
+void pvharm_init(t_pvharm *x, short initialized)
+{
+	int i;
+	float curfreq;
+	
+	x->D = x->vs;
+	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;
+	x->Iinv = 1./x->D;
+	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;
+    
+	if(!initialized){
+		x->P = .5 ; // for testing purposes
+		x->P2 = .6666666666 ; // for testing purposes
+  		x->L = 8192 ;
+  		x->synt = .00005;
+  		x->mute = 0;
+		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->lastamp = (float *) getbytes((MAX_N+1) * sizeof(float));
+		x->lastfreq = (float *) getbytes((MAX_N+1) * sizeof(float));
+		x->lastamp2 = (float *) getbytes((MAX_N+1) * sizeof(float));
+		x->lastfreq2 = (float *) getbytes((MAX_N+1) * sizeof(float));
+		x->index = (float *) getbytes((MAX_N+1) * sizeof(float));
+		x->index2 = (float *) getbytes((MAX_N+1) * sizeof(float));
+		x->table = (float *) getbytes(x->L * sizeof(float));
+		x->c_lastphase_in = (float *) getbytes((MAX_N2+1) * 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->lastamp2,0,(x->N+1) * sizeof(float));
+	memset((char *)x->lastfreq2,0,(x->N+1) * sizeof(float));
+	memset((char *)x->index,0,(x->N+1) * sizeof(float));
+	memset((char *)x->index2,0,(x->N+1) * sizeof(float));
+	
+	x->myPInc = x->P * x->L/x->R;
+	x->myPInc2 = x->P2 * x->L/x->R;
+	x->ffac = x->P * PI/x->N;
+	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 ;
+	}
+	if( x->hi_bin >= x->N2 ){
+		x->hi_bin = x->N2 - 1;
+	}
+	x->lo_bin = 0;  
+	curfreq = 0;
+	while(curfreq < x->lofreq) {
+		++(x->lo_bin);
+		curfreq += x->c_fundamental ;
+	}
+	
+	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);
+	
+}
+
+t_int *pvharm_perform(t_int *w)
+{
+	int i,j, in,on;
+	int    amp,freq,chan;  
+	int breaker = 0;
+	float    a,ainc,f,finc,address;
+	float tmpfreq;
+	t_pvharm *x = (t_pvharm *) (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 *in4 = (t_float *)(w[5]);
+	t_float *outbuf = (t_float *)(w[6]);
+	t_int n = w[7];
+	
+	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;
+	int L = x->L;
+	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 P2  = x->P2; 
+	float Iinv = x->Iinv;
+	float myPInc = x->myPInc;
+	float myPInc2 = x->myPInc2;
+	float *table = x->table;
+	float *lastamp = x->lastamp;
+	float *lastamp2 = x->lastamp2;
+	float *lastfreq = x->lastfreq;
+	float *lastfreq2 = x->lastfreq2;
+	float *bindex = x->index;
+	float *bindex2 = x->index2;
+	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 ){
+		for ( j = 0; j < n; j++ ){
+			*outbuf++ = 0.0;
+		}
+		return (w+8);
+	}
+	
+	
+	if( x->synt_connected ){
+		synt = *in4++;
+	}
+	if( x->pitch1_connected) {
+		P = *in2++;
+		myPInc = P * x->L/x->R;
+	}
+	if( x->pitch2_connected) {
+		P2 = *in3++;
+		myPInc2 = P2 * x->L/x->R;
+	}
+	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++ ) {
+		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 );
+	
+	
+	for ( chan = lo_bin; chan < hi_bin; chan++ ) {
+		
+		freq = ( amp = ( chan << 1 ) ) + 1;
+		if ( channel[amp] < synt ){ 
+			breaker = 1;
+		}
+		if( breaker ) {
+			breaker = 0 ;
+		} else {
+			tmpfreq = channel[freq] * myPInc;
+			finc = ( tmpfreq - ( 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] = tmpfreq;
+			lastamp[chan] = channel[amp];
+			bindex[chan] = address;
+			// OSC BANK 2
+			tmpfreq = channel[freq] * myPInc2;
+			finc = ( tmpfreq - ( f = lastfreq2[chan] ) )*Iinv;
+			ainc = ( channel[amp] - ( a = lastamp2[chan] ) )*Iinv;
+			address = bindex2[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;
+			}
+			lastfreq2[chan] = tmpfreq;
+			lastamp2[chan] = channel[amp];
+			bindex2[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.;
+	}	
+	
+	x->P = P;
+	x->P2 = P2;
+	x->inCount = in;
+	return (w+8);
+}		
+
+#if MSP
+void pvharm_float(t_pvharm *x, double f) // Look at floats at inlets
+{
+	int inlet = x->x_obj.z_in;
+	
+	if (inlet == 1)
+    {
+		x->P = f;
+		x->myPInc = x->P*x->L/x->R;
+		
+    }
+	else if (inlet == 2)
+    {
+		x->P2 = f;
+		x->myPInc2 = x->P2*x->L/x->R;
+    }
+	else if (inlet == 3)
+    {
+		x->synt = f;
+    }
+	
+}
+#endif
+
+void pvharm_mute(t_pvharm *x, t_floatarg state)
+{
+	x->mute = (short)state;	
+}
+
+void pvharm_dsp(t_pvharm *x, t_signal **sp, short *count)
+{
+#if MSP
+	x->pitch1_connected = count[1];
+	x->pitch2_connected = count[2];
+	x->synt_connected = count[3];
+#endif
+#if PD
+	x->pitch1_connected = 1;
+	x->pitch2_connected = 1;
+	x->synt_connected = 1;
+#endif
+	if(x->vs != sp[0]->s_n || x->R != sp[0]->s_sr){
+		x->vs = sp[0]->s_n;
+		x->R = sp[0]->s_sr;
+		pvharm_init(x,1);
+	}
+	//  post("pvharm: sampling rate is %f",sp[0]->s_sr );
+	dsp_add(pvharm_perform, 7, x, sp[0]->s_vec, sp[1]->s_vec, sp[2]->s_vec, 
+			sp[3]->s_vec, sp[4]->s_vec, sp[0]->s_n);
+}
+
-- 
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