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/*
* relay: route without stripping selector
*
* (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/>.
*/
/*
(c) 2106:forum::für::umläute:2005
"relay" is like "route" but doesn't change the incoming list
example:
[foo bar( --> [route foo] --> [bar(
[foo bar( --> [relay foo] --> [foor bar(
namings:
direct, channel, relay, steer, guide, ??
in the meantime i choose [relay] (as in mail-relay)
*/
#include "zexy.h"
/* -------------------------- relay ------------------------------ */
static t_class *relay_class;
typedef struct _relayelement {
t_word e_w;
t_outlet *e_outlet;
} t_relayelement;
typedef struct _relay {
t_object x_obj;
t_atomtype x_type;
t_int x_nelement;
t_relayelement *x_vec;
t_outlet *x_rejectout;
} t_relay;
static void relay_anything(t_relay *x, t_symbol *sel, int argc,
t_atom *argv)
{
t_relayelement *e;
int nelement;
if (x->x_type == A_SYMBOL) {
for (nelement = x->x_nelement, e = x->x_vec; nelement--; e++) {
if (e->e_w.w_symbol == sel) {
outlet_anything(e->e_outlet, sel, argc, argv);
return;
}
}
}
outlet_anything(x->x_rejectout, sel, argc, argv);
}
static void relay_list(t_relay *x, t_symbol *sel, int argc, t_atom *argv)
{
t_relayelement *e;
int nelement;
if (x->x_type == A_FLOAT) {
t_float f;
if (!argc) {
outlet_bang(x->x_rejectout);
return;
}
f = atom_getfloat(argv);
for (nelement = x->x_nelement, e = x->x_vec; nelement--; e++) {
if (e->e_w.w_float == f) {
if (!sel) {
sel=(argc==1)?gensym("float"):gensym("list");
}
outlet_anything(e->e_outlet, sel, argc, argv);
return;
}
}
} else { /* symbol arguments */
if (argc == 0) { /* no args: treat as "bang" */
for (nelement = x->x_nelement, e = x->x_vec; nelement--; e++) {
if (e->e_w.w_symbol == gensym("bang")) {
outlet_bang(e->e_outlet);
return;
}
}
} else if (argc>1) {
for (nelement = x->x_nelement, e = x->x_vec; nelement--; e++) {
if (e->e_w.w_symbol == gensym("list")) {
outlet_anything(e->e_outlet, sel, argc, argv);
return;
}
}
} else if (argv[0].a_type == A_FLOAT) { /* one float arg */
for (nelement = x->x_nelement, e = x->x_vec; nelement--; e++) {
if (e->e_w.w_symbol == gensym("float")) {
outlet_float(e->e_outlet, argv[0].a_w.w_float);
return;
}
}
} else {
for (nelement = x->x_nelement, e = x->x_vec; nelement--; e++) {
if (e->e_w.w_symbol == gensym("symbol")) {
outlet_symbol(e->e_outlet, argv[0].a_w.w_symbol);
return;
}
}
}
}
outlet_list(x->x_rejectout, gensym("list"), argc, argv);
}
static void relay_free(t_relay *x)
{
freebytes(x->x_vec, x->x_nelement * sizeof(*x->x_vec));
}
static void *relay_new(t_symbol* UNUSED(s), int argc, t_atom *argv)
{
int n;
t_relayelement *e;
t_relay *x = (t_relay *)pd_new(relay_class);
t_atom a;
if (argc == 0) {
argc = 1;
SETFLOAT(&a, 0);
argv = &a;
}
x->x_type = argv[0].a_type;
x->x_nelement = argc;
x->x_vec = (t_relayelement *)getbytes(argc * sizeof(*x->x_vec));
for (n = 0, e = x->x_vec; n < argc; n++, e++) {
e->e_outlet = outlet_new(&x->x_obj, gensym("list"));
if (x->x_type == A_FLOAT) {
e->e_w.w_float = atom_getfloatarg(n, argc, argv);
} else {
e->e_w.w_symbol = atom_getsymbolarg(n, argc, argv);
}
}
x->x_rejectout = outlet_new(&x->x_obj, gensym("list"));
return (x);
}
void relay_setup(void)
{
relay_class = class_new(gensym("relay"), (t_newmethod)relay_new,
(t_method)relay_free, sizeof(t_relay), 0, A_GIMME, 0);
class_addlist(relay_class, relay_list);
class_addanything(relay_class, relay_anything);
zexy_register("relay");
}
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