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/*
* lister: this is for lists, what "float" is for floats (use [list] instead)
*
* (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"
#ifdef HAVE_ALLOCA_H
# include <alloca.h>
#endif
#define LIST_NGETBYTE 100 /* bigger that this we use alloc, not alloca */
static t_class *mypdlist_class;
#ifdef HAVE_ALLOCA_H
# define ATOMS_ALLOCA(x, n) ((x) = (t_atom *)((n) < LIST_NGETBYTE ? \
alloca((n) * sizeof(t_atom)) : getbytes((n) * sizeof(t_atom))))
# define ATOMS_FREEA(x, n) ( \
((n) < LIST_NGETBYTE || (freebytes((x), (n) * sizeof(t_atom)), 0)))
#else
# define ATOMS_ALLOCA(x, n) ((x) = (t_atom *)getbytes((n) * sizeof(t_atom)))
# define ATOMS_FREEA(x, n) (freebytes((x), (n) * sizeof(t_atom)))
#endif
static void atoms_copy(int argc, t_atom *from, t_atom *to)
{
int i;
for (i = 0; i < argc; i++) {
to[i] = from[i];
}
}
static void mypdlist_storelist(t_mypdlist *x, int argc, t_atom *argv)
{
if(x->x_list) {
freebytes(x->x_list, x->x_n*sizeof(t_atom));
}
x->x_n=argc;
x->x_list=(t_atom*)getbytes(x->x_n*sizeof(t_atom));
atoms_copy(argc, argv, x->x_list);
}
static void mypdlist_secondlist(t_mypdlist *x, t_symbol *s, int argc,
t_atom *argv)
{
mypdlist_storelist(x, argc, argv);
}
static void mypdlist_bang(t_mypdlist *x)
{
int outc=x->x_n;
t_atom*outv;
ATOMS_ALLOCA(outv, outc);
atoms_copy(x->x_n, x->x_list, outv);
outlet_list(x->x_obj.ob_outlet, gensym("list"), outc, outv);
ATOMS_FREEA(outv, outc);
}
static void mypdlist_list(t_mypdlist *x, t_symbol *s, int argc,
t_atom *argv)
{
mypdlist_secondlist(x, s, argc, argv);
mypdlist_bang(x);
}
static void mypdlist_free(t_mypdlist *x)
{
freebytes(x->x_list, x->x_n * sizeof(t_atom));
}
static void *mypdlist_new(t_symbol *s, int argc, t_atom *argv)
{
t_mypdlist *x = (t_mypdlist *)pd_new(mypdlist_class);
outlet_new(&x->x_obj, 0);
inlet_new(&x->x_obj, &x->x_obj.ob_pd, gensym("list"), gensym("lst2"));
x->x_n = 0;
x->x_list = 0;
if(argc) {
mypdlist_secondlist(x, gensym("list"), argc, argv);
}
return (x);
}
static void mypdlist_help(t_mypdlist*x)
{
post("\n"HEARTSYMBOL" lister\t\t:: basic list storage (use pd>=0.39 for real [list] objects)");
}
void lister_setup(void)
{
mypdlist_class = class_new(gensym("lister"), (t_newmethod)mypdlist_new,
(t_method)mypdlist_free, sizeof(t_mypdlist), 0, A_GIMME, 0);
/* i don't know how to get this work with name=="list" !!! */
class_addcreator((t_newmethod)mypdlist_new, gensym("l"), A_GIMME, 0);
class_addbang (mypdlist_class, mypdlist_bang);
class_addlist (mypdlist_class, mypdlist_list);
class_addmethod (mypdlist_class, (t_method)mypdlist_secondlist,
gensym("lst2"), A_GIMME, 0);
class_addmethod(mypdlist_class, (t_method)mypdlist_help, gensym("help"),
A_NULL);
zexy_register("lister");
}
void l_setup(void)
{
lister_setup();
}
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