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/f2note.c | 183 --------------------------------------------------- 1 file changed, 183 deletions(-) delete mode 100644 src/iemlib1/f2note.c (limited to 'src/iemlib1/f2note.c') diff --git a/src/iemlib1/f2note.c b/src/iemlib1/f2note.c deleted file mode 100644 index 3625427..0000000 --- a/src/iemlib1/f2note.c +++ /dev/null @@ -1,183 +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 - -/* ------------------------- f2note ---------------------- */ -/* ------ frequency to note plus cents converter --------- */ - -typedef struct _f2note -{ - t_object x_obj; - void *x_outlet_midi; - void *x_outlet_note; - void *x_outlet_cent; - int x_centomidi; - t_float x_refhz; - t_float x_refexp; - t_float x_reflog; - t_symbol *x_set; -} t_f2note; - -static t_class *f2note_class; - -t_float f2note_mtof(t_f2note *x, t_float midi) -{ - return(x->x_refexp * exp(0.057762265047 * midi)); -} - -t_float f2note_ftom(t_f2note *x, t_float freq) -{ - return (freq > 0 ? 17.31234049 * log(x->x_reflog * freq) : -1500); -} - -void f2note_calc_ref(t_f2note *x) -{ - t_float ln2=log(2.0); - - x->x_refexp = x->x_refhz*exp(-5.75*ln2); - x->x_reflog = 1.0/x->x_refexp; -} - -static void f2note_make_note(char *str, int midi) -{ - int j,k,l=0; - - j = midi / 12; - k = midi % 12; - if(k <= 5) - { - if(k <= 2) - { - if(k==0) - str[l]='c'; - else if(k==1) - { - str[l++]='#'; - str[l]='c'; - } - else - str[l]='d'; - } - else - { - if(k==3) - { - str[l++]='#'; - str[l]='d'; - } - else if(k==4) - str[l]='e'; - else - str[l]='f'; - } - } - else - { - if(k <= 8) - { - if(k==6) - { - str[l++]='#'; - str[l]='f'; - } - else if(k==7) - str[l]='g'; - else - { - str[l++]='#'; - str[l]='g'; - } - } - else - { - if(k==9) - str[l]='a'; - else if(k==10) - { - str[l++]='#'; - str[l]='a'; - } - else - str[l]='h'; - } - } - - if(j < 4) - { - str[l] -= 'a'; - str[l] += 'A'; - } - l++; - if(j < 3) - { - str[l++] = '0' + (char)(3 - j); - } - else if(j > 4) - { - str[l++] = '0' + (char)(j - 4); - } - str[l] = 0; -} - -static void f2note_bang(t_f2note *x) -{ - int i,j; - t_atom at; - char s[4]; - - i = (x->x_centomidi + 50)/100; - j = x->x_centomidi - 100*i; - outlet_float(x->x_outlet_cent, (t_float)j); - f2note_make_note(s, i); - SETSYMBOL(&at, gensym(s)); - outlet_anything(x->x_outlet_note, x->x_set, 1, &at); - outlet_float(x->x_outlet_midi, 0.01f*(t_float)(x->x_centomidi)); -} - -static void f2note_float(t_f2note *x, t_floatarg freq) -{ - x->x_centomidi = (int)(100.0f*f2note_ftom(x, freq) + 0.5f); - f2note_bang(x); -} - -void f2note_ref(t_f2note *x, t_floatarg ref) -{ - x->x_refhz = ref; - f2note_calc_ref(x); -} - -static void *f2note_new(t_floatarg ref) -{ - t_f2note *x = (t_f2note *)pd_new(f2note_class); - - if(ref == 0.0f) - ref=440.0f; - x->x_refhz = ref; - x->x_centomidi = (int)(100.0f*ref + 0.499f); - f2note_calc_ref(x); - x->x_outlet_midi = outlet_new(&x->x_obj, &s_float); - x->x_outlet_note = outlet_new(&x->x_obj, &s_list); - x->x_outlet_cent = outlet_new(&x->x_obj, &s_float); - x->x_set = gensym("set"); - return (x); -} - -static void f2note_free(t_f2note *x) -{ -} - -void f2note_setup(void) -{ - f2note_class = class_new(gensym("f2note"), (t_newmethod)f2note_new, (t_method)f2note_free, - sizeof(t_f2note), 0, A_DEFFLOAT, 0); - class_addbang(f2note_class,f2note_bang); - class_addfloat(f2note_class,f2note_float); - class_addmethod(f2note_class, (t_method)f2note_ref, gensym("ref"), A_FLOAT, 0); - class_sethelpsymbol(f2note_class, gensym("iemhelp/help-f2note")); -} -- cgit v1.2.1