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/******************************************************
*
* zexy - implementation file
*
* copyleft (c) IOhannes m zmölnig
*
* 1999:forum::für::umläute:2004
*
* institute of electronic music and acoustics (iem)
*
******************************************************
*
* license: GNU General Public License v.2
*
******************************************************/
/* 1509:forum::für::umläute:2000 */
/*
demux : multiplex the input to a specified output
TODO:: mux : demultiplex a specified input to the output
*/
#include "zexy.h"
#include <stdio.h>
/* ------------------------- demux ------------------------------- */
/*
a demultiplexer
*/
static t_class *demux_class;
typedef struct _demux
{
t_object x_obj;
int n_out;
t_outlet **out, *selected;
} t_demux;
static void demux_select(t_demux *x, t_float f)
{
int n = ( (f<0) || (f>x->n_out) ) ? 0 : f;
x->selected = x->out[n];
}
static void demux_list(t_demux *x, t_symbol *s, int argc, t_atom *argv)
{
switch (argc) {
case 0:
outlet_bang(x->selected);
break;
case 1:
switch (argv->a_type) {
case A_FLOAT:
outlet_float(x->selected, atom_getfloat(argv));
break;
case A_SYMBOL:
outlet_symbol(x->selected, atom_getsymbol(argv));
break;
case A_POINTER:
outlet_pointer(x->selected, argv->a_w.w_gpointer);
break;
default:
outlet_list(x->selected, s, argc, argv);
}
break;
default:
outlet_list(x->selected, s, argc, argv);
}
}
static void demux_any(t_demux *x, t_symbol *s, int argc, t_atom *argv)
{
outlet_anything(x->selected, s, argc, argv);
}
static void *demux_new(t_symbol *s, int argc, t_atom *argv)
{
t_demux *x = (t_demux *)pd_new(demux_class);
int n = (argc < 2)?2:argc;
ZEXY_USEVAR(s);
ZEXY_USEVAR(argv);
x->n_out = n - 1;
inlet_new(&x->x_obj, &x->x_obj.ob_pd, gensym("float"), gensym("select"));
x->out = (t_outlet **)getbytes(n * sizeof(t_outlet *));
for (n=0; n<=x->n_out; n++) {
x->out[n] = outlet_new(&x->x_obj, 0);
}
x->selected = x->out[0];
return (x);
}
void demultiplex_setup(void)
{
demux_class = class_new(gensym("demultiplex"), (t_newmethod)demux_new,
0, sizeof(t_demux), 0, A_GIMME, 0);
class_addcreator((t_newmethod)demux_new, gensym("demux"), A_GIMME, 0);
class_addanything (demux_class, demux_any);
class_addlist (demux_class, demux_list);
class_addmethod (demux_class, (t_method)demux_select, gensym("select"), A_DEFFLOAT, 0);
zexy_register("demultiplex");
}
void demux_setup(void)
{
demultiplex_setup();
}
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