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/*
* mulitplex : multiplex a specified input to the output
*
* (c) 1999-2011 IOhannes m zmölnig, forum::für::umläute, institute of electronic music and acoustics (iem)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/* 1903:forum::für::umläute:2005 */
/*
* THINK: should the selector-inlet be the first or the last ???
* pros/cons:
* the 1st inlet being the selector is not consistant with pd (hot/cold)
* but as it since the hot inlet is selectable, the whole object is not really consitant
* numbering would have to start with 1 (for the 1st not-leftmost inlet)
* if the selector is rightmost this would mean: cold is right(most), hot is (somewhere) left
* numbering would be ok
*
* conclusio: make the selector rightmost
*
*/
#include "zexy.h"
#include <stdio.h>
/* ------------------------- mux ------------------------------- */
/*
a multiplexer
*/
static t_class *mux_class;
static t_class *muxproxy_class;
typedef struct _mux {
t_object x_obj;
struct _muxproxy **x_proxy;
int i_count;
int i_selected;
t_inlet **in;
} t_mux;
typedef struct _muxproxy {
t_pd p_pd;
t_mux *p_master;
int id;
} t_muxproxy;
static void mux_select(t_mux *x, t_float f)
{
x->i_selected=f;
}
static void mux_anything(t_muxproxy *y, t_symbol *s, int argc,
t_atom *argv)
{
t_mux*x=y->p_master;
if(y->id==x->i_selected) {
outlet_anything(x->x_obj.ob_outlet, s, argc, argv);
}
}
static void *mux_new(t_symbol *s, int argc, t_atom *argv)
{
int n = (argc < 2)?2:argc;
t_mux *x = (t_mux *)pd_new(mux_class);
x->i_selected=0;
x->i_count = n;
x->in = (t_inlet **)getbytes(x->i_count * sizeof(t_inlet *));
x->x_proxy = (t_muxproxy**)getbytes(x->i_count * sizeof(t_muxproxy*));
for (n = 0; n<x->i_count; n++) {
x->x_proxy[n]=(t_muxproxy*)pd_new(muxproxy_class);
x->x_proxy[n]->p_master = x;
x->x_proxy[n]->id=n;
x->in[n] = inlet_new ((t_object*)x, (t_pd*)x->x_proxy[n], 0,0);
}
inlet_new(&x->x_obj, &x->x_obj.ob_pd, gensym("float"), gensym(""));
outlet_new(&x->x_obj, 0);
return (x);
}
static void mux_free(t_mux*x)
{
const int count = x->i_count;
if(x->in && x->x_proxy) {
int n=0;
for(n=0; n<count; n++) {
if(x->in[n]) {
inlet_free(x->in[n]);
}
x->in[n]=0;
if(x->x_proxy[n]) {
t_muxproxy *y=x->x_proxy[n];
y->p_master=0;
y->id=0;
pd_free(&y->p_pd);
}
x->x_proxy[n]=0;
}
freebytes(x->in, x->i_count * sizeof(t_inlet *));
freebytes(x->x_proxy, x->i_count * sizeof(t_muxproxy*));
}
/* pd_free(&y->p_pd); */
}
void multiplex_setup(void)
{
mux_class = class_new(gensym("multiplex"), (t_newmethod)mux_new,
(t_method)mux_free, sizeof(t_mux), CLASS_NOINLET, A_GIMME, 0);
class_addcreator((t_newmethod)mux_new, gensym("mux"), A_GIMME, 0);
class_addmethod (mux_class, (t_method)mux_select, gensym(""), A_DEFFLOAT,
0);
muxproxy_class = class_new(0, 0, 0,
sizeof(t_muxproxy),
CLASS_PD | CLASS_NOINLET, 0);
class_addanything(muxproxy_class, mux_anything);
zexy_register("multiplex");
}
void mux_setup(void)
{
multiplex_setup();
}
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