From d6b088044e161a27d49df537bbb6d998a8d0e50d Mon Sep 17 00:00:00 2001 From: musil Date: Sat, 9 Dec 2006 02:00:52 +0000 Subject: // class_sethelpsymbol(); changed help-*.pd to *-help.pd chanded file structure to standard 1st step remove old svn path=/trunk/externals/iemlib/; revision=6756 --- src/iemlib1/iem_cot4~.c | 168 ------------------------------------------------ 1 file changed, 168 deletions(-) delete mode 100644 src/iemlib1/iem_cot4~.c (limited to 'src/iemlib1/iem_cot4~.c') diff --git a/src/iemlib1/iem_cot4~.c b/src/iemlib1/iem_cot4~.c deleted file mode 100644 index 52b48f7..0000000 --- a/src/iemlib1/iem_cot4~.c +++ /dev/null @@ -1,168 +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 */ - - -#include "m_pd.h" -#include "iemlib.h" -#include - -/* ------------------------ iem_cot4~ ----------------------------- */ - -t_float *iem_cot4_tilde_table_cos=(t_float *)0L; -t_float *iem_cot4_tilde_table_sin=(t_float *)0L; - -static t_class *iem_cot4_tilde_class; - -typedef struct _iem_cot4_tilde -{ - t_object x_obj; - t_float x_sr; - t_float x_msi; -} t_iem_cot4_tilde; - -static t_int *iem_cot4_tilde_perform(t_int *w) -{ - t_float *in = (t_float *)(w[1]); - t_float *out = (t_float *)(w[2]); - t_float norm_freq; - t_float hout; - t_iem_cot4_tilde *x = (t_iem_cot4_tilde *)(w[3]); - t_float sr=x->x_sr; - int n = (int)(w[4]); - t_float *ctab = iem_cot4_tilde_table_cos, *stab = iem_cot4_tilde_table_sin; - t_float *caddr, *saddr, cf1, cf2, sf1, sf2, frac; - double dphase; - int normhipart; - int32 mytfi; - union tabfudge tf; - - tf.tf_d = UNITBIT32; - normhipart = tf.tf_i[HIOFFSET]; - -#if 0 /* this is the readable version of the code. */ - while (n--) - { - norm_freq = *in * sr; - if(norm_freq < 0.0001f) - norm_freq = 0.0001f; - else if(norm_freq > 0.9f) - norm_freq = 0.9f; - dphase = (double)(norm_freq * (t_float)(COSTABSIZE)) + UNITBIT32; - tf.tf_d = dphase; - mytfi = tf.tf_i[HIOFFSET] & (COSTABSIZE-1); - saddr = stab + (mytfi); - caddr = ctab + (mytfi); - tf.tf_i[HIOFFSET] = normhipart; - frac = tf.tf_d - UNITBIT32; - sf1 = saddr[0]; - sf2 = saddr[1]; - cf1 = caddr[0]; - cf2 = caddr[1]; - in++; - *out++ = (cf1 + frac * (cf2 - cf1))/(sf1 + frac * (sf2 - sf1)); - } -#endif -#if 1 /* this is the same, unwrapped by hand. prolog beg*/ - n /= 4; - norm_freq = *in * sr; - if(norm_freq < 0.0001f) - norm_freq = 0.0001f; - else if(norm_freq > 0.9f) - norm_freq = 0.9f; - dphase = (double)(norm_freq * (t_float)(COSTABSIZE)) + UNITBIT32; - tf.tf_d = dphase; - mytfi = tf.tf_i[HIOFFSET] & (COSTABSIZE-1); - saddr = stab + (mytfi); - caddr = ctab + (mytfi); - tf.tf_i[HIOFFSET] = normhipart; - in += 4; /*prolog end*/ - while (--n) - { - norm_freq = *in * sr; - if(norm_freq < 0.0001f) - norm_freq = 0.0001f; - else if(norm_freq > 0.9f) - norm_freq = 0.9f; - dphase = (double)(norm_freq * (t_float)(COSTABSIZE)) + UNITBIT32; - frac = tf.tf_d - UNITBIT32; - tf.tf_d = dphase; - sf1 = saddr[0]; - sf2 = saddr[1]; - cf1 = caddr[0]; - cf2 = caddr[1]; - mytfi = tf.tf_i[HIOFFSET] & (COSTABSIZE-1); - saddr = stab + (mytfi); - caddr = ctab + (mytfi); - hout = (cf1 + frac * (cf2 - cf1))/(sf1 + frac * (sf2 - sf1)); - *out++ = hout; - *out++ = hout; - *out++ = hout; - *out++ = hout; - in += 4; - tf.tf_i[HIOFFSET] = normhipart; - }/*epilog beg*/ - frac = tf.tf_d - UNITBIT32; - sf1 = saddr[0]; - sf2 = saddr[1]; - cf1 = caddr[0]; - cf2 = caddr[1]; - hout = (cf1 + frac * (cf2 - cf1))/(sf1 + frac * (sf2 - sf1)); - *out++ = hout; - *out++ = hout; - *out++ = hout; - *out++ = hout; - /*epilog end*/ -#endif - return (w+5); -} - -static void iem_cot4_tilde_dsp(t_iem_cot4_tilde *x, t_signal **sp) -{ - x->x_sr = 2.0f / (t_float)sp[0]->s_sr; - dsp_add(iem_cot4_tilde_perform, 4, sp[0]->s_vec, sp[1]->s_vec, x, sp[0]->s_n); -} - -static void iem_cot4_tilde_maketable(void) -{ - int i; - t_float *fp, phase, fff, phsinc = 0.5*3.141592653 / ((t_float)COSTABSIZE); - union tabfudge tf; - - if(!iem_cot4_tilde_table_sin) - { - iem_cot4_tilde_table_sin = (t_float *)getbytes(sizeof(t_float) * (COSTABSIZE+1)); - for(i=COSTABSIZE+1, fp=iem_cot4_tilde_table_sin, phase=0; i--; fp++, phase+=phsinc) - *fp = sin(phase); - } - if(!iem_cot4_tilde_table_cos) - { - iem_cot4_tilde_table_cos = (t_float *)getbytes(sizeof(t_float) * (COSTABSIZE+1)); - for(i=COSTABSIZE+1, fp=iem_cot4_tilde_table_cos, phase=0; i--; fp++, phase+=phsinc) - *fp = cos(phase); - } - tf.tf_d = UNITBIT32 + 0.5; - if((unsigned)tf.tf_i[LOWOFFSET] != 0x80000000) - bug("iem_cot4~: unexpected machine alignment"); -} - -static void *iem_cot4_tilde_new(void) -{ - t_iem_cot4_tilde *x = (t_iem_cot4_tilde *)pd_new(iem_cot4_tilde_class); - - outlet_new(&x->x_obj, gensym("signal")); - x->x_msi = 0; - return (x); -} - -void iem_cot4_tilde_setup(void) -{ - iem_cot4_tilde_class = class_new(gensym("iem_cot4~"), (t_newmethod)iem_cot4_tilde_new, 0, - sizeof(t_iem_cot4_tilde), 0, 0); - class_addcreator((t_newmethod)iem_cot4_tilde_new, gensym("iem_cot~"), 0); - CLASS_MAINSIGNALIN(iem_cot4_tilde_class, t_iem_cot4_tilde, x_msi); - class_addmethod(iem_cot4_tilde_class, (t_method)iem_cot4_tilde_dsp, gensym("dsp"), 0); - iem_cot4_tilde_maketable(); - class_sethelpsymbol(iem_cot4_tilde_class, gensym("iemhelp/help-iem_cot4~")); -} -- cgit v1.2.1