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/*
* mux~ : multiplex a specified signal 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/>.
*/
#include "zexy.h"
static t_class *mux_tilde_class;
typedef struct _mux {
t_object x_obj;
int input;
int n_in;
t_sample **in;
} t_mux;
static void mux_tilde_input(t_mux *x, t_floatarg f)
{
if ((f>=0)&&(f<x->n_in)) {
x->input=f;
} else {
error("multiplex~: %d is channel out of range (0..%d)", (int)f, x->n_in);
}
}
static t_int *mux_tilde_perform(t_int *w)
{
t_mux *x = (t_mux *)(w[1]);
t_sample *out = (t_sample *)(w[2]);
int n = (int)(w[3]);
t_sample *in = x->in[x->input];
while(n--) {
*out++=*in++;
}
return (w+4);
}
static void mux_tilde_dsp(t_mux *x, t_signal **sp)
{
int n = 0;
t_sample **dummy=x->in;
for(n=0; n<x->n_in; n++) {
*dummy++=sp[n]->s_vec;
}
dsp_add(mux_tilde_perform, 3, x, sp[n]->s_vec, sp[0]->s_n);
}
static void mux_tilde_helper(void)
{
post("\n"HEARTSYMBOL" multiplex~\t:: multiplex a one of various signals to one outlet");
post("<#out>\t : the inlet-number (counting from 0) witch is routed to the outlet"
"'help'\t : view this");
post("creation : \"mux~ [arg1 [arg2...]]\"\t: the number of arguments equals the number of inlets\n");
}
static void mux_tilde_free(t_mux *x)
{
freebytes(x->in, x->n_in * sizeof(t_sample *));
}
static void *mux_tilde_new(t_symbol* UNUSED(s), int argc,
t_atom* UNUSED(argv))
{
t_mux *x = (t_mux *)pd_new(mux_tilde_class);
int i;
if (!argc) {
argc=2;
}
x->n_in=argc;
x->input=0;
argc--;
while(argc--) {
inlet_new(&x->x_obj,&x->x_obj.ob_pd,gensym("signal"),gensym("signal"));
}
x->in = (t_sample **)getbytes(x->n_in * sizeof(t_sample *));
i=x->n_in;
while(i--) {
x->in[i]=0;
}
outlet_new(&x->x_obj, gensym("signal"));
return (x);
}
void multiplex_tilde_setup(void)
{
mux_tilde_class = class_new(gensym("multiplex~"),
(t_newmethod)mux_tilde_new, (t_method)mux_tilde_free, sizeof(t_mux), 0,
A_GIMME, 0);
class_addcreator((t_newmethod)mux_tilde_new, gensym("mux~"), A_GIMME, 0);
class_addfloat(mux_tilde_class, mux_tilde_input);
class_addmethod(mux_tilde_class, (t_method)mux_tilde_dsp, gensym("dsp"),
0);
class_addmethod(mux_tilde_class, nullfn, gensym("signal"), 0);
class_addmethod(mux_tilde_class, (t_method)mux_tilde_helper,
gensym("help"), 0);
zexy_register("multiplex~");
}
void mux_tilde_setup(void)
{
multiplex_tilde_setup();
}
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