diff options
author | IOhannes m zmölnig <zmoelnig@users.sourceforge.net> | 2005-06-02 18:25:00 +0000 |
---|---|---|
committer | IOhannes m zmölnig <zmoelnig@users.sourceforge.net> | 2005-06-02 18:25:00 +0000 |
commit | 0c9b89b1018eb7760708ee5b080cd96846861328 (patch) | |
tree | f43a2b20292bba90931fe84e67aca8fb0013a984 /src/iemlib1/sigvcf_filter.c | |
parent | d56ec9d039c904e9230137254ff2fe281320eed9 (diff) |
updated to release-1.16
svn path=/trunk/externals/iemlib/; revision=3102
Diffstat (limited to 'src/iemlib1/sigvcf_filter.c')
-rw-r--r-- | src/iemlib1/sigvcf_filter.c | 668 |
1 files changed, 334 insertions, 334 deletions
diff --git a/src/iemlib1/sigvcf_filter.c b/src/iemlib1/sigvcf_filter.c index a491c50..ae35fd3 100644 --- a/src/iemlib1/sigvcf_filter.c +++ b/src/iemlib1/sigvcf_filter.c @@ -1,334 +1,334 @@ -/* For information on usage and redistribution, and for a DISCLAIMER OF ALL -* WARRANTIES, see the file, "LICENSE.txt," in this distribution. - -iemlib1 written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2003 */ - -#ifdef NT -#pragma warning( disable : 4244 ) -#pragma warning( disable : 4305 ) -#endif - - -#include "m_pd.h" -#include "iemlib.h" -#include <math.h> -#include <stdio.h> -#include <string.h> - -/* ---------- vcf_filter~ - slow dynamic vcf_filter 1. and 2. order ----------- */ - -typedef struct sigvcf_filter -{ - t_object x_obj; - float x_wn1; - float x_wn2; - float x_msi; - char x_filtname[6]; -} t_sigvcf_filter; - -t_class *sigvcf_filter_class; - -static t_int *sigvcf_filter_perform_snafu(t_int *w) -{ - float *in = (float *)(w[1]); - float *out = (float *)(w[4]); - int n = (t_int)(w[6]); - - while(n--) - *out++ = *in++; - return(w+7); -} - -/* -lp2 - wn0 = *in++ - rcp*(2.0f*(2.0f - l2)*wn1 + (l2 - al)*wn2); - *out++ = rcp*(wn0 + 2.0f*wn1 + wn2); - wn2 = wn1; - wn1 = wn0; - -bp2 - wn0 = *in++ - rcp*(2.0f*(2.0f - l2)*wn1 + (l2 - al)*wn2); - *out++ = rcp*al*(wn0 - wn2); - wn2 = wn1; - wn1 = wn0; - -rbp2 - wn0 = *in++ - rcp*(2.0f*(2.0f - l2)*wn1 + (l2 - al)*wn2); - *out++ = rcp*l*(wn0 - wn2); - wn2 = wn1; - wn1 = wn0; - -hp2 - wn0 = *in++ - rcp*(2.0f*(2.0f - l2)*wn1 + (l2 - al)*wn2); - *out++ = rcp*(wn0 - 2.0f*wn1 + wn2); - wn2 = wn1; - wn1 = wn0; - -*/ - -static t_int *sigvcf_filter_perform_lp2(t_int *w) -{ - float *in = (float *)(w[1]); - float *lp = (float *)(w[2]); - float *q = (float *)(w[3]); - float *out = (float *)(w[4]); - t_sigvcf_filter *x = (t_sigvcf_filter *)(w[5]); - int i, n = (t_int)(w[6]); - float wn0, wn1=x->x_wn1, wn2=x->x_wn2; - float l, al, l2, rcp; - - for(i=0; i<n; i+=4) - { - l = lp[i]; - if(q[i] < 0.000001) - al = 1000000.0*l; - else if(q[i] > 1000000.0) - al = 0.000001*l; - else - al = l/q[i]; - l2 = l*l + 1.0f; - rcp = 1.0f/(al + l2); - - wn0 = *in++ - rcp*(2.0f*(2.0f - l2)*wn1 + (l2 - al)*wn2); - *out++ = rcp*(wn0 + 2.0f*wn1 + wn2); - wn2 = wn1; - wn1 = wn0; - - wn0 = *in++ - rcp*(2.0f*(2.0f - l2)*wn1 + (l2 - al)*wn2); - *out++ = rcp*(wn0 + 2.0f*wn1 + wn2); - wn2 = wn1; - wn1 = wn0; - - wn0 = *in++ - rcp*(2.0f*(2.0f - l2)*wn1 + (l2 - al)*wn2); - *out++ = rcp*(wn0 + 2.0f*wn1 + wn2); - wn2 = wn1; - wn1 = wn0; - - wn0 = *in++ - rcp*(2.0f*(2.0f - l2)*wn1 + (l2 - al)*wn2); - *out++ = rcp*(wn0 + 2.0f*wn1 + wn2); - wn2 = wn1; - wn1 = wn0; - } - /* NAN protect */ - if(IEM_DENORMAL(wn2)) - wn2 = 0.0f; - if(IEM_DENORMAL(wn1)) - wn1 = 0.0f; - - x->x_wn1 = wn1; - x->x_wn2 = wn2; - return(w+7); -} - -static t_int *sigvcf_filter_perform_bp2(t_int *w) -{ - float *in = (float *)(w[1]); - float *lp = (float *)(w[2]); - float *q = (float *)(w[3]); - float *out = (float *)(w[4]); - t_sigvcf_filter *x = (t_sigvcf_filter *)(w[5]); - int i, n = (t_int)(w[6]); - float wn0, wn1=x->x_wn1, wn2=x->x_wn2; - float l, al, l2, rcp; - - for(i=0; i<n; i+=4) - { - l = lp[i]; - if(q[i] < 0.000001) - al = 1000000.0*l; - else if(q[i] > 1000000.0) - al = 0.000001*l; - else - al = l/q[i]; - l2 = l*l + 1.0f; - rcp = 1.0f/(al + l2); - - - wn0 = *in++ - rcp*(2.0f*(2.0f - l2)*wn1 + (l2 - al)*wn2); - *out++ = rcp*al*(wn0 - wn2); - wn2 = wn1; - wn1 = wn0; - - wn0 = *in++ - rcp*(2.0f*(2.0f - l2)*wn1 + (l2 - al)*wn2); - *out++ = rcp*al*(wn0 - wn2); - wn2 = wn1; - wn1 = wn0; - - wn0 = *in++ - rcp*(2.0f*(2.0f - l2)*wn1 + (l2 - al)*wn2); - *out++ = rcp*al*(wn0 - wn2); - wn2 = wn1; - wn1 = wn0; - - wn0 = *in++ - rcp*(2.0f*(2.0f - l2)*wn1 + (l2 - al)*wn2); - *out++ = rcp*al*(wn0 - wn2); - wn2 = wn1; - wn1 = wn0; - } - /* NAN protect */ - if(IEM_DENORMAL(wn2)) - wn2 = 0.0f; - if(IEM_DENORMAL(wn1)) - wn1 = 0.0f; - - x->x_wn1 = wn1; - x->x_wn2 = wn2; - return(w+7); -} - -static t_int *sigvcf_filter_perform_rbp2(t_int *w) -{ - float *in = (float *)(w[1]); - float *lp = (float *)(w[2]); - float *q = (float *)(w[3]); - float *out = (float *)(w[4]); - t_sigvcf_filter *x = (t_sigvcf_filter *)(w[5]); - int i, n = (t_int)(w[6]); - float wn0, wn1=x->x_wn1, wn2=x->x_wn2; - float al, l, l2, rcp; - - for(i=0; i<n; i+=4) - { - l = lp[i]; - if(q[i] < 0.000001) - al = 1000000.0*l; - else if(q[i] > 1000000.0) - al = 0.000001*l; - else - al = l/q[i]; - l2 = l*l + 1.0f; - rcp = 1.0f/(al + l2); - - - wn0 = *in++ - rcp*(2.0f*(2.0f - l2)*wn1 + (l2 - al)*wn2); - *out++ = rcp*l*(wn0 - wn2); - wn2 = wn1; - wn1 = wn0; - - wn0 = *in++ - rcp*(2.0f*(2.0f - l2)*wn1 + (l2 - al)*wn2); - *out++ = rcp*l*(wn0 - wn2); - wn2 = wn1; - wn1 = wn0; - - wn0 = *in++ - rcp*(2.0f*(2.0f - l2)*wn1 + (l2 - al)*wn2); - *out++ = rcp*l*(wn0 - wn2); - wn2 = wn1; - wn1 = wn0; - - wn0 = *in++ - rcp*(2.0f*(2.0f - l2)*wn1 + (l2 - al)*wn2); - *out++ = rcp*l*(wn0 - wn2); - wn2 = wn1; - wn1 = wn0; - } - /* NAN protect */ - if(IEM_DENORMAL(wn2)) - wn2 = 0.0f; - if(IEM_DENORMAL(wn1)) - wn1 = 0.0f; - - x->x_wn1 = wn1; - x->x_wn2 = wn2; - return(w+7); -} - -static t_int *sigvcf_filter_perform_hp2(t_int *w) -{ - float *in = (float *)(w[1]); - float *lp = (float *)(w[2]); - float *q = (float *)(w[3]); - float *out = (float *)(w[4]); - t_sigvcf_filter *x = (t_sigvcf_filter *)(w[5]); - int i, n = (t_int)(w[6]); - float wn0, wn1=x->x_wn1, wn2=x->x_wn2; - float l, al, l2, rcp, forw; - - for(i=0; i<n; i+=4) - { - l = lp[i]; - if(q[i] < 0.000001) - al = 1000000.0*l; - else if(q[i] > 1000000.0) - al = 0.000001*l; - else - al = l/q[i]; - l2 = l*l + 1.0f; - rcp = 1.0f/(al + l2); - forw = rcp * (l2 - 1.0f); - - wn0 = *in++ - rcp*(2.0f*(2.0f - l2)*wn1 + (l2 - al)*wn2); - *out++ = forw*(wn0 - 2.0f*wn1 + wn2); - wn2 = wn1; - wn1 = wn0; - - wn0 = *in++ - rcp*(2.0f*(2.0f - l2)*wn1 + (l2 - al)*wn2); - *out++ = forw*(wn0 - 2.0f*wn1 + wn2); - wn2 = wn1; - wn1 = wn0; - - wn0 = *in++ - rcp*(2.0f*(2.0f - l2)*wn1 + (l2 - al)*wn2); - *out++ = forw*(wn0 - 2.0f*wn1 + wn2); - wn2 = wn1; - wn1 = wn0; - - wn0 = *in++ - rcp*(2.0f*(2.0f - l2)*wn1 + (l2 - al)*wn2); - *out++ = forw*(wn0 - 2.0f*wn1 + wn2); - wn2 = wn1; - wn1 = wn0; - } - /* NAN protect */ - if(IEM_DENORMAL(wn2)) - wn2 = 0.0f; - if(IEM_DENORMAL(wn1)) - wn1 = 0.0f; - - x->x_wn1 = wn1; - x->x_wn2 = wn2; - return(w+7); -} - -static void sigvcf_filter_dsp(t_sigvcf_filter *x, t_signal **sp) -{ - if(!strcmp(x->x_filtname,"bp2")) - dsp_add(sigvcf_filter_perform_bp2, 6, sp[0]->s_vec, sp[1]->s_vec, - sp[2]->s_vec, sp[3]->s_vec, x, sp[0]->s_n); - else if(!strcmp(x->x_filtname,"rbp2")) - dsp_add(sigvcf_filter_perform_rbp2, 6, sp[0]->s_vec, sp[1]->s_vec, - sp[2]->s_vec, sp[3]->s_vec, x, sp[0]->s_n); - else if(!strcmp(x->x_filtname,"lp2")) - dsp_add(sigvcf_filter_perform_lp2, 6, sp[0]->s_vec, sp[1]->s_vec, - sp[2]->s_vec, sp[3]->s_vec, x, sp[0]->s_n); - else if(!strcmp(x->x_filtname,"hp2")) - dsp_add(sigvcf_filter_perform_hp2, 6, sp[0]->s_vec, sp[1]->s_vec, - sp[2]->s_vec, sp[3]->s_vec, x, sp[0]->s_n); - else - { - dsp_add(sigvcf_filter_perform_snafu, 6, sp[0]->s_vec, sp[1]->s_vec, - sp[2]->s_vec, sp[3]->s_vec, x, sp[0]->s_n); - post("vcf_filter~-Error: 1. initial-arguments: <sym> kind: lp2, bp2, rbp2, hp2!"); - } -} - -static void *sigvcf_filter_new(t_symbol *filt_typ) -{ - t_sigvcf_filter *x = (t_sigvcf_filter *)pd_new(sigvcf_filter_class); - char *c; - - inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_signal, &s_signal); - inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_signal, &s_signal); - outlet_new(&x->x_obj, &s_signal); - x->x_msi = 0; - x->x_wn1 = 0.0; - x->x_wn2 = 0.0; - c = (char *)filt_typ->s_name; - c[5] = 0; - strcpy(x->x_filtname, c); - return(x); -} - -void sigvcf_filter_setup(void) -{ - sigvcf_filter_class = class_new(gensym("vcf_filter~"), (t_newmethod)sigvcf_filter_new, - 0, sizeof(t_sigvcf_filter), 0, A_DEFSYM, 0); - CLASS_MAINSIGNALIN(sigvcf_filter_class, t_sigvcf_filter, x_msi); - class_addmethod(sigvcf_filter_class, (t_method)sigvcf_filter_dsp, gensym("dsp"), 0); - class_sethelpsymbol(sigvcf_filter_class, gensym("iemhelp/help-vcf_filter~")); -} +/* For information on usage and redistribution, and for a DISCLAIMER OF ALL
+* WARRANTIES, see the file, "LICENSE.txt," in this distribution.
+
+iemlib1 written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2005 */
+
+#ifdef NT
+#pragma warning( disable : 4244 )
+#pragma warning( disable : 4305 )
+#endif
+
+
+#include "m_pd.h"
+#include "iemlib.h"
+#include <math.h>
+#include <stdio.h>
+#include <string.h>
+
+/* ---------- vcf_filter~ - slow dynamic vcf_filter 1. and 2. order ----------- */
+
+typedef struct sigvcf_filter
+{
+ t_object x_obj;
+ float x_wn1;
+ float x_wn2;
+ float x_msi;
+ char x_filtname[6];
+} t_sigvcf_filter;
+
+t_class *sigvcf_filter_class;
+
+static t_int *sigvcf_filter_perform_snafu(t_int *w)
+{
+ float *in = (float *)(w[1]);
+ float *out = (float *)(w[4]);
+ int n = (t_int)(w[6]);
+
+ while(n--)
+ *out++ = *in++;
+ return(w+7);
+}
+
+/*
+lp2
+wn0 = *in++ - rcp*(2.0f*(2.0f - l2)*wn1 + (l2 - al)*wn2);
+*out++ = rcp*(wn0 + 2.0f*wn1 + wn2);
+wn2 = wn1;
+wn1 = wn0;
+
+ bp2
+ wn0 = *in++ - rcp*(2.0f*(2.0f - l2)*wn1 + (l2 - al)*wn2);
+ *out++ = rcp*al*(wn0 - wn2);
+ wn2 = wn1;
+ wn1 = wn0;
+
+ rbp2
+ wn0 = *in++ - rcp*(2.0f*(2.0f - l2)*wn1 + (l2 - al)*wn2);
+ *out++ = rcp*l*(wn0 - wn2);
+ wn2 = wn1;
+ wn1 = wn0;
+
+ hp2
+ wn0 = *in++ - rcp*(2.0f*(2.0f - l2)*wn1 + (l2 - al)*wn2);
+ *out++ = rcp*(wn0 - 2.0f*wn1 + wn2);
+ wn2 = wn1;
+ wn1 = wn0;
+
+*/
+
+static t_int *sigvcf_filter_perform_lp2(t_int *w)
+{
+ float *in = (float *)(w[1]);
+ float *lp = (float *)(w[2]);
+ float *q = (float *)(w[3]);
+ float *out = (float *)(w[4]);
+ t_sigvcf_filter *x = (t_sigvcf_filter *)(w[5]);
+ int i, n = (t_int)(w[6]);
+ float wn0, wn1=x->x_wn1, wn2=x->x_wn2;
+ float l, al, l2, rcp;
+
+ for(i=0; i<n; i+=4)
+ {
+ l = lp[i];
+ if(q[i] < 0.000001)
+ al = 1000000.0*l;
+ else if(q[i] > 1000000.0)
+ al = 0.000001*l;
+ else
+ al = l/q[i];
+ l2 = l*l + 1.0f;
+ rcp = 1.0f/(al + l2);
+
+ wn0 = *in++ - rcp*(2.0f*(2.0f - l2)*wn1 + (l2 - al)*wn2);
+ *out++ = rcp*(wn0 + 2.0f*wn1 + wn2);
+ wn2 = wn1;
+ wn1 = wn0;
+
+ wn0 = *in++ - rcp*(2.0f*(2.0f - l2)*wn1 + (l2 - al)*wn2);
+ *out++ = rcp*(wn0 + 2.0f*wn1 + wn2);
+ wn2 = wn1;
+ wn1 = wn0;
+
+ wn0 = *in++ - rcp*(2.0f*(2.0f - l2)*wn1 + (l2 - al)*wn2);
+ *out++ = rcp*(wn0 + 2.0f*wn1 + wn2);
+ wn2 = wn1;
+ wn1 = wn0;
+
+ wn0 = *in++ - rcp*(2.0f*(2.0f - l2)*wn1 + (l2 - al)*wn2);
+ *out++ = rcp*(wn0 + 2.0f*wn1 + wn2);
+ wn2 = wn1;
+ wn1 = wn0;
+ }
+ /* NAN protect */
+ if(IEM_DENORMAL(wn2))
+ wn2 = 0.0f;
+ if(IEM_DENORMAL(wn1))
+ wn1 = 0.0f;
+
+ x->x_wn1 = wn1;
+ x->x_wn2 = wn2;
+ return(w+7);
+}
+
+static t_int *sigvcf_filter_perform_bp2(t_int *w)
+{
+ float *in = (float *)(w[1]);
+ float *lp = (float *)(w[2]);
+ float *q = (float *)(w[3]);
+ float *out = (float *)(w[4]);
+ t_sigvcf_filter *x = (t_sigvcf_filter *)(w[5]);
+ int i, n = (t_int)(w[6]);
+ float wn0, wn1=x->x_wn1, wn2=x->x_wn2;
+ float l, al, l2, rcp;
+
+ for(i=0; i<n; i+=4)
+ {
+ l = lp[i];
+ if(q[i] < 0.000001)
+ al = 1000000.0*l;
+ else if(q[i] > 1000000.0)
+ al = 0.000001*l;
+ else
+ al = l/q[i];
+ l2 = l*l + 1.0f;
+ rcp = 1.0f/(al + l2);
+
+
+ wn0 = *in++ - rcp*(2.0f*(2.0f - l2)*wn1 + (l2 - al)*wn2);
+ *out++ = rcp*al*(wn0 - wn2);
+ wn2 = wn1;
+ wn1 = wn0;
+
+ wn0 = *in++ - rcp*(2.0f*(2.0f - l2)*wn1 + (l2 - al)*wn2);
+ *out++ = rcp*al*(wn0 - wn2);
+ wn2 = wn1;
+ wn1 = wn0;
+
+ wn0 = *in++ - rcp*(2.0f*(2.0f - l2)*wn1 + (l2 - al)*wn2);
+ *out++ = rcp*al*(wn0 - wn2);
+ wn2 = wn1;
+ wn1 = wn0;
+
+ wn0 = *in++ - rcp*(2.0f*(2.0f - l2)*wn1 + (l2 - al)*wn2);
+ *out++ = rcp*al*(wn0 - wn2);
+ wn2 = wn1;
+ wn1 = wn0;
+ }
+ /* NAN protect */
+ if(IEM_DENORMAL(wn2))
+ wn2 = 0.0f;
+ if(IEM_DENORMAL(wn1))
+ wn1 = 0.0f;
+
+ x->x_wn1 = wn1;
+ x->x_wn2 = wn2;
+ return(w+7);
+}
+
+static t_int *sigvcf_filter_perform_rbp2(t_int *w)
+{
+ float *in = (float *)(w[1]);
+ float *lp = (float *)(w[2]);
+ float *q = (float *)(w[3]);
+ float *out = (float *)(w[4]);
+ t_sigvcf_filter *x = (t_sigvcf_filter *)(w[5]);
+ int i, n = (t_int)(w[6]);
+ float wn0, wn1=x->x_wn1, wn2=x->x_wn2;
+ float al, l, l2, rcp;
+
+ for(i=0; i<n; i+=4)
+ {
+ l = lp[i];
+ if(q[i] < 0.000001)
+ al = 1000000.0*l;
+ else if(q[i] > 1000000.0)
+ al = 0.000001*l;
+ else
+ al = l/q[i];
+ l2 = l*l + 1.0f;
+ rcp = 1.0f/(al + l2);
+
+
+ wn0 = *in++ - rcp*(2.0f*(2.0f - l2)*wn1 + (l2 - al)*wn2);
+ *out++ = rcp*l*(wn0 - wn2);
+ wn2 = wn1;
+ wn1 = wn0;
+
+ wn0 = *in++ - rcp*(2.0f*(2.0f - l2)*wn1 + (l2 - al)*wn2);
+ *out++ = rcp*l*(wn0 - wn2);
+ wn2 = wn1;
+ wn1 = wn0;
+
+ wn0 = *in++ - rcp*(2.0f*(2.0f - l2)*wn1 + (l2 - al)*wn2);
+ *out++ = rcp*l*(wn0 - wn2);
+ wn2 = wn1;
+ wn1 = wn0;
+
+ wn0 = *in++ - rcp*(2.0f*(2.0f - l2)*wn1 + (l2 - al)*wn2);
+ *out++ = rcp*l*(wn0 - wn2);
+ wn2 = wn1;
+ wn1 = wn0;
+ }
+ /* NAN protect */
+ if(IEM_DENORMAL(wn2))
+ wn2 = 0.0f;
+ if(IEM_DENORMAL(wn1))
+ wn1 = 0.0f;
+
+ x->x_wn1 = wn1;
+ x->x_wn2 = wn2;
+ return(w+7);
+}
+
+static t_int *sigvcf_filter_perform_hp2(t_int *w)
+{
+ float *in = (float *)(w[1]);
+ float *lp = (float *)(w[2]);
+ float *q = (float *)(w[3]);
+ float *out = (float *)(w[4]);
+ t_sigvcf_filter *x = (t_sigvcf_filter *)(w[5]);
+ int i, n = (t_int)(w[6]);
+ float wn0, wn1=x->x_wn1, wn2=x->x_wn2;
+ float l, al, l2, rcp, forw;
+
+ for(i=0; i<n; i+=4)
+ {
+ l = lp[i];
+ if(q[i] < 0.000001)
+ al = 1000000.0*l;
+ else if(q[i] > 1000000.0)
+ al = 0.000001*l;
+ else
+ al = l/q[i];
+ l2 = l*l + 1.0f;
+ rcp = 1.0f/(al + l2);
+ forw = rcp * (l2 - 1.0f);
+
+ wn0 = *in++ - rcp*(2.0f*(2.0f - l2)*wn1 + (l2 - al)*wn2);
+ *out++ = forw*(wn0 - 2.0f*wn1 + wn2);
+ wn2 = wn1;
+ wn1 = wn0;
+
+ wn0 = *in++ - rcp*(2.0f*(2.0f - l2)*wn1 + (l2 - al)*wn2);
+ *out++ = forw*(wn0 - 2.0f*wn1 + wn2);
+ wn2 = wn1;
+ wn1 = wn0;
+
+ wn0 = *in++ - rcp*(2.0f*(2.0f - l2)*wn1 + (l2 - al)*wn2);
+ *out++ = forw*(wn0 - 2.0f*wn1 + wn2);
+ wn2 = wn1;
+ wn1 = wn0;
+
+ wn0 = *in++ - rcp*(2.0f*(2.0f - l2)*wn1 + (l2 - al)*wn2);
+ *out++ = forw*(wn0 - 2.0f*wn1 + wn2);
+ wn2 = wn1;
+ wn1 = wn0;
+ }
+ /* NAN protect */
+ if(IEM_DENORMAL(wn2))
+ wn2 = 0.0f;
+ if(IEM_DENORMAL(wn1))
+ wn1 = 0.0f;
+
+ x->x_wn1 = wn1;
+ x->x_wn2 = wn2;
+ return(w+7);
+}
+
+static void sigvcf_filter_dsp(t_sigvcf_filter *x, t_signal **sp)
+{
+ if(!strcmp(x->x_filtname,"bp2"))
+ dsp_add(sigvcf_filter_perform_bp2, 6, sp[0]->s_vec, sp[1]->s_vec,
+ sp[2]->s_vec, sp[3]->s_vec, x, sp[0]->s_n);
+ else if(!strcmp(x->x_filtname,"rbp2"))
+ dsp_add(sigvcf_filter_perform_rbp2, 6, sp[0]->s_vec, sp[1]->s_vec,
+ sp[2]->s_vec, sp[3]->s_vec, x, sp[0]->s_n);
+ else if(!strcmp(x->x_filtname,"lp2"))
+ dsp_add(sigvcf_filter_perform_lp2, 6, sp[0]->s_vec, sp[1]->s_vec,
+ sp[2]->s_vec, sp[3]->s_vec, x, sp[0]->s_n);
+ else if(!strcmp(x->x_filtname,"hp2"))
+ dsp_add(sigvcf_filter_perform_hp2, 6, sp[0]->s_vec, sp[1]->s_vec,
+ sp[2]->s_vec, sp[3]->s_vec, x, sp[0]->s_n);
+ else
+ {
+ dsp_add(sigvcf_filter_perform_snafu, 6, sp[0]->s_vec, sp[1]->s_vec,
+ sp[2]->s_vec, sp[3]->s_vec, x, sp[0]->s_n);
+ post("vcf_filter~-Error: 1. initial-arguments: <sym> kind: lp2, bp2, rbp2, hp2!");
+ }
+}
+
+static void *sigvcf_filter_new(t_symbol *filt_typ)
+{
+ t_sigvcf_filter *x = (t_sigvcf_filter *)pd_new(sigvcf_filter_class);
+ char *c;
+
+ inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_signal, &s_signal);
+ inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_signal, &s_signal);
+ outlet_new(&x->x_obj, &s_signal);
+ x->x_msi = 0;
+ x->x_wn1 = 0.0;
+ x->x_wn2 = 0.0;
+ c = (char *)filt_typ->s_name;
+ c[5] = 0;
+ strcpy(x->x_filtname, c);
+ return(x);
+}
+
+void sigvcf_filter_setup(void)
+{
+ sigvcf_filter_class = class_new(gensym("vcf_filter~"), (t_newmethod)sigvcf_filter_new,
+ 0, sizeof(t_sigvcf_filter), 0, A_DEFSYM, 0);
+ CLASS_MAINSIGNALIN(sigvcf_filter_class, t_sigvcf_filter, x_msi);
+ class_addmethod(sigvcf_filter_class, (t_method)sigvcf_filter_dsp, gensym("dsp"), 0);
+ class_sethelpsymbol(sigvcf_filter_class, gensym("iemhelp/help-vcf_filter~"));
+}
|