diff options
Diffstat (limited to 'externals/vanilla/ftom~.c')
-rw-r--r-- | externals/vanilla/ftom~.c | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/externals/vanilla/ftom~.c b/externals/vanilla/ftom~.c new file mode 100644 index 00000000..cfc63595 --- /dev/null +++ b/externals/vanilla/ftom~.c @@ -0,0 +1,47 @@ +/* Copyright (c) 1997-2001 Miller Puckette and others. +* For information on usage and redistribution, and for a DISCLAIMER OF ALL +* WARRANTIES, see the file, "LICENSE.txt," in this distribution. */ + +#include "m_pd.h" +#include <math.h> + +typedef struct ftom_tilde +{ + t_object x_obj; + t_float x_f; +} t_ftom_tilde; + +t_class *ftom_tilde_class; + +static void *ftom_tilde_new(void) +{ + t_ftom_tilde *x = (t_ftom_tilde *)pd_new(ftom_tilde_class); + outlet_new(&x->x_obj, gensym("signal")); + x->x_f = 0; + return (x); +} + +static t_int *ftom_tilde_perform(t_int *w) +{ + t_sample *in = *(t_sample **)(w+1), *out = *(t_sample **)(w+2); + t_int n = *(t_int *)(w+3); + for (; n--; *in++, out++) + { + t_sample f = *in; + *out = (f > 0 ? 17.3123405046 * log(.12231220585 * f) : -1500); + } + return (w + 4); +} + +static void ftom_tilde_dsp(t_ftom_tilde *x, t_signal **sp) +{ + dsp_add(ftom_tilde_perform, 3, sp[0]->s_vec, sp[1]->s_vec, sp[0]->s_n); +} + +void ftom_tilde_setup(void) +{ + ftom_tilde_class = class_new(gensym("ftom~"), (t_newmethod)ftom_tilde_new, 0, + sizeof(t_ftom_tilde), 0, 0); + CLASS_MAINSIGNALIN(ftom_tilde_class, t_ftom_tilde, x_f); + class_addmethod(ftom_tilde_class, (t_method)ftom_tilde_dsp, gensym("dsp"), 0); +} |