text: /* Copyright (c) 2002-2005 krzYszcz and others.
   * For information on usage and redistribution, and for a DISCLAIMER OF ALL
   * WARRANTIES, see the file, "LICENSE.txt," in this distribution.  */
  
  /* This is an entirely rewritten version of Joseph A. Sarlo's code.
     The most important changes are listed in "pd-lib-notes.txt" file.  */
  
  #include "m_pd.h"
  #include "loud.h"
  #include "fitter.h"
  
  #define DECODE_C74MAXOUTS  8  /* CHECKED (does it make any sense?) */
  #define DECODE_DEFOUTS     1
  
  typedef struct _Decode
  {
      t_object    x_ob;
      int         x_numouts;
      int         x_onout;
      int         x_allon;   /* submaster switch */
      int         x_alloff;  /* master switch */
      t_outlet  **x_outs;
      t_outlet   *x_outbuf[DECODE_C74MAXOUTS];
  } t_Decode;
  
  static t_class *Decode_class;
  
  /* CHECKED: all outlets deliver after any action */
  /* CHECKED: outlets output in right-to-left order */
  
  static void Decode_deliver(t_Decode *x)
  {
      int i = x->x_numouts;
      if (x->x_alloff)
  	while (i--) outlet_float(x->x_outs[i], 0);
      else if (x->x_allon)
  	while (i--) outlet_float(x->x_outs[i], 1);
      else
  	while (i--) outlet_float(x->x_outs[i], (i == x->x_onout ? 1 : 0));
  }
  
  static void Decode_float(t_Decode *x, t_floatarg f)
  {
      int val = (int)f;
      /* CHECKED: out-of-range input is clipped, not ignored */
      if (val < 0)
  	val = 0;
      else if (val >= x->x_numouts)
  	val = x->x_numouts - 1;
      /* CHECKED: while in all-off mode, input is stored, not ignored */
      x->x_onout = val;
      Decode_deliver(x);
  }
  
  static void Decode_allon(t_Decode *x, t_floatarg f)
  {
      x->x_allon = (f != 0);
      Decode_deliver(x);
  }
  
  static void Decode_alloff(t_Decode *x, t_floatarg f)
  {
      x->x_alloff = (f != 0);
      Decode_deliver(x);
  }
  
  static void Decode_free(t_Decode *x)
  {
      if (x->x_outs != x->x_outbuf)
  	freebytes(x->x_outs, x->x_numouts * sizeof(*x->x_outs));
  }
  
  static void *Decode_new(t_floatarg val)
  {
      t_Decode *x;
      int i, nouts = (int)val;
      t_outlet **outs;
      if (nouts < 1)
  	nouts = DECODE_DEFOUTS;
      if (nouts > DECODE_C74MAXOUTS)
      {
  	fittermax_rangewarning(Decode_class, DECODE_C74MAXOUTS, "outlets");
  	if (!(outs = (t_outlet **)getbytes(nouts * sizeof(*outs))))
  	    return (0);
      }
      else outs = 0;
      x = (t_Decode *)pd_new(Decode_class);
      x->x_numouts = nouts;
      x->x_outs = (outs ? outs : x->x_outbuf);
      x->x_onout = 0;
      x->x_allon = 0;
      x->x_alloff = 0;
      inlet_new((t_object *)x, (t_pd *)x, &s_float, gensym("ft1"));
      inlet_new((t_object *)x, (t_pd *)x, &s_float, gensym("ft2"));
      for (i = 0; i < nouts; i++)
  	x->x_outs[i] = outlet_new((t_object *)x, &s_float);
      return (x);
  }
  
  void Decode_setup(void)
  {
      Decode_class = class_new(gensym("Decode"),
  			     (t_newmethod)Decode_new,
  			     (t_method)Decode_free,
  			     sizeof(t_Decode), 0, A_DEFFLOAT, 0);
      class_addcreator((t_newmethod)Decode_new, gensym("decode"), A_DEFFLOAT, 0);
      class_addcreator((t_newmethod)Decode_new, gensym("cyclone/decode"), A_DEFFLOAT, 0);
      class_addfloat(Decode_class, Decode_float);
      class_addmethod(Decode_class, (t_method)Decode_allon,
  		    gensym("ft1"), A_FLOAT, 0);
      class_addmethod(Decode_class, (t_method)Decode_alloff,
  		    gensym("ft2"), A_FLOAT, 0); 
      fitter_setup(Decode_class, 0);
  }
  
  void decode_setup(void)
  {
      Decode_setup();
  }
  