From c38056e5242f42c13130bac5ccdc14c86dc91814 Mon Sep 17 00:00:00 2001 From: musil Date: Wed, 8 Nov 2006 13:46:14 +0000 Subject: changed sig*.c to *~.c svn path=/trunk/externals/iemlib/; revision=6232 --- src/iemlib1/sigvcf_filter.c | 334 -------------------------------------------- 1 file changed, 334 deletions(-) delete mode 100644 src/iemlib1/sigvcf_filter.c (limited to 'src/iemlib1/sigvcf_filter.c') diff --git a/src/iemlib1/sigvcf_filter.c b/src/iemlib1/sigvcf_filter.c deleted file mode 100644 index 4283e9a..0000000 --- a/src/iemlib1/sigvcf_filter.c +++ /dev/null @@ -1,334 +0,0 @@ -/* 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 _MSC_VER -#pragma warning( disable : 4244 ) -#pragma warning( disable : 4305 ) -#endif - - -#include "m_pd.h" -#include "iemlib.h" -#include -#include -#include - -/* ---------- 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 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 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 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 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: 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~")); -} -- cgit v1.2.1