diff options
Diffstat (limited to 'listfifo.c')
| -rw-r--r-- | listfifo.c | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/listfifo.c b/listfifo.c new file mode 100644 index 0000000..4c6e93d --- /dev/null +++ b/listfifo.c @@ -0,0 +1,109 @@ +/* ---------------------------- listfifo -------------------------------------- */
+/* */
+/* Fifo buffer of lists, empties itselfe on every bang (in order of coming in) */
+/* Written by Olaf Matthes (olaf.matthes@gmx.de) */
+/* Get source at http://www.akustische-kunst.org/puredata/maxlib/ */
+/* */
+/* 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, write to the Free Software */
+/* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+/* */
+/* Based on PureData by Miller Puckette and others. */
+/* */
+/* ---------------------------------------------------------------------------- */
+
+#include "m_pd.h"
+
+#define MAX_ELEM 256 /* maximum number of list elements to pass on */
+
+static char *version = "listfifo v0.1, written by Olaf Matthes <olaf.matthes@gmx.de>";
+
+typedef struct listfifo
+{
+ t_object d_ob;
+ t_atom *getal; /* stores the list values */
+ t_int *getsize; /* stores the number of elements in list */
+ t_int count, end, size;
+ t_outlet *out;
+
+}t_listfifo;
+
+static t_class *listfifo_class;
+
+static void listfifo_list(t_listfifo *x, t_symbol *s, int argc, t_atom *argv)
+{
+ int i;
+ if(argc > MAX_ELEM)
+ {
+ post("listfifo: to many arguments in list, ignored");
+ return;
+ }
+ for(i = 0; i < argc; i++)
+ x->getal[(x->count * MAX_ELEM) + i] = argv[i];
+ x->getsize[x->count] = argc;
+ x->count = (x->count + 1) % x->size;
+ // post("got %d elements", argc);
+}
+
+static void listfifo_bang(t_listfifo *x)
+{
+ // post("count = %d, end = %d", x->count, x->end);
+ if (x->end != x->count){
+ outlet_list(x->out, NULL, x->getsize[x->end], x->getal+(x->end * MAX_ELEM));
+ x->end = (x->end + 1) % x->size;
+ }
+}
+
+static void listfifo_free(t_listfifo *x)
+{
+ freebytes(x->getsize, x->size * sizeof(t_int));
+ freebytes(x->getal, x->size * sizeof(t_float) * MAX_ELEM);
+}
+
+static void *listfifo_new(t_floatarg n)
+{
+ int i;
+
+ t_listfifo *x = (t_listfifo *)pd_new(listfifo_class);
+ if (n<10) n = 10;
+ x->size = (t_int)n;
+ x->end = 0;
+ x->count = 0;
+ x->getsize = (t_int *)getbytes(x->size * sizeof(t_int));
+ x->getal = (t_atom *)getbytes(x->size * sizeof(t_atom) * MAX_ELEM);
+ x->out = outlet_new(&x->d_ob, gensym("list"));
+
+ return (x);
+}
+
+#ifndef MAXLIB
+void listfifo_setup(void)
+{
+ listfifo_class = class_new(gensym("listfifo"), (t_newmethod)listfifo_new,
+ (t_method)listfifo_free, sizeof(t_listfifo), 0, A_DEFFLOAT, 0);
+ class_addbang(listfifo_class, listfifo_bang);
+ class_addlist(listfifo_class, listfifo_list);
+
+ post(version);
+}
+#else
+void maxlib_listfifo_setup(void)
+{
+ listfifo_class = class_new(gensym("maxlib_listfifo"), (t_newmethod)listfifo_new,
+ (t_method)listfifo_free, sizeof(t_listfifo), 0, A_DEFFLOAT, 0);
+ class_addcreator((t_newmethod)listfifo_new, gensym("listfifo"), A_DEFFLOAT, 0);
+ class_addbang(listfifo_class, listfifo_bang);
+ class_addlist(listfifo_class, listfifo_list);
+ class_sethelpsymbol(listfifo_class, gensym("maxlib/listfifo-help.pd"));
+}
+#endif
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