apps/plugins/pdbox/PDa/intern/rmstodb~.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 #define LOGTEN 2.302585092994
  10
  11
  12 typedef struct rmstodb_tilde
  13 {
  14     t_object x_obj;
  15     float x_f;
  16 } t_rmstodb_tilde;
  17
  18 t_class *rmstodb_tilde_class;
  19
  20 static void *rmstodb_tilde_new(void)
  21 {
  22     t_rmstodb_tilde *x = (t_rmstodb_tilde *)pd_new(rmstodb_tilde_class);
  23     outlet_new(&x->x_obj, gensym("signal"));
  24     x->x_f = 0;
  25     return (x);
  26 }
  27
  28 static t_int *rmstodb_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             float g = 100 + 20./LOGTEN * log(f);
  39             *out = (g < 0 ? 0 : g);
  40         }
  41     }
  42     return (w + 4);
  43 }
  44
  45 static void rmstodb_tilde_dsp(t_rmstodb_tilde *x, t_signal **sp)
  46 {
  47 #ifdef ROCKBOX
  48     (void) x;
  49 #endif
  50     post("warning: %s not usable yet",__FUNCTION__);
  51     dsp_add(rmstodb_tilde_perform, 3, sp[0]->s_vec, sp[1]->s_vec, sp[0]->s_n);
  52 }
  53
  54 void rmstodb_tilde_setup(void)
  55 {
  56     rmstodb_tilde_class = class_new(gensym("rmstodb~"), (t_newmethod)rmstodb_tilde_new, 0,
  57         sizeof(t_rmstodb_tilde), 0, 0);
  58     CLASS_MAINSIGNALIN(rmstodb_tilde_class, t_rmstodb_tilde, x_f);
  59     class_addmethod(rmstodb_tilde_class, (t_method)rmstodb_tilde_dsp, gensym("dsp"), 0);
  60 }
  61