apps/plugins/pdbox/PDa/intern/dbtorms~.c

   1 #ifdef ROCKBOX
   2 #include "plugin.h"
   3 #include "../../pdbox.h"
   4 #endif
   5
   6 #include "../src/m_pd.h"
   7 #include <../src/m_fixed.h>
   8
   9
  10 #define LOGTEN 2.302585092994
  11
  12 typedef struct dbtorms_tilde
  13 {
  14     t_object x_obj;
  15     float x_f;
  16 } t_dbtorms_tilde;
  17
  18 t_class *dbtorms_tilde_class;
  19
  20 static void *dbtorms_tilde_new(void)
  21 {
  22     t_dbtorms_tilde *x = (t_dbtorms_tilde *)pd_new(dbtorms_tilde_class);
  23     outlet_new(&x->x_obj, gensym("signal"));
  24     x->x_f = 0;
  25     return (x);
  26 }
  27
  28 static t_int *dbtorms_tilde_perform(t_int *w)
  29 {
  30     float *in = *(t_float **)(w+1), *out = *(t_float **)(w+2);
  31     t_int n = *(t_int *)(w+3);
  32     for (; n--; in++, out++)
  33     {
  34         float f = *in;
  35         if (f <= 0) *out = 0;
  36         else
  37         {
  38             if (f > 485)
  39                 f = 485;
  40             *out = exp((LOGTEN * 0.05) * (f-100.));
  41         }
  42     }
  43     return (w + 4);
  44 }
  45
  46 static void dbtorms_tilde_dsp(t_dbtorms_tilde *x, t_signal **sp)
  47 {
  48 #ifdef ROCKBOX
  49     (void) x;
  50 #endif
  51     post("warning: %s not usable yet",__FUNCTION__);
  52     dsp_add(dbtorms_tilde_perform, 3, sp[0]->s_vec, sp[1]->s_vec, sp[0]->s_n);
  53 }
  54
  55 void dbtorms_tilde_setup(void)
  56 {
  57     dbtorms_tilde_class = class_new(gensym("dbtorms~"), (t_newmethod)dbtorms_tilde_new, 0,
  58         sizeof(t_dbtorms_tilde), 0, 0);
  59     CLASS_MAINSIGNALIN(dbtorms_tilde_class, t_dbtorms_tilde, x_f);
  60     class_addmethod(dbtorms_tilde_class, (t_method)dbtorms_tilde_dsp, gensym("dsp"), 0);
  61 }
  62