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/******************************************************
*
* zexy - implementation file
*
* copyleft (c) IOhannes m zmölnig
*
* 1999:forum::für::umläute:2005
*
* institute of electronic music and acoustics (iem)
*
******************************************************
*
* license: GNU General Public License v.2
*
******************************************************/
/*
(c) 2106:forum::für::umläute:2005
"relay" is like "relay" but doesn't change the incoming list
example:
[foo bar( --> [relay 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)
{
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)
{
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 == &s_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 == &s_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 == &s_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 == &s_symbol)
{
outlet_symbol(e->e_outlet, argv[0].a_w.w_symbol);
return;
}
}
}
}
outlet_list(x->x_rejectout, &s_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 *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, &s_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, &s_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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