diff options
Diffstat (limited to 'dist.c')
| -rw-r--r-- | dist.c | 279 |
1 files changed, 279 insertions, 0 deletions
@@ -0,0 +1,279 @@ +/* -------------------------- dist ------------------------------------------ */
+/* */
+/* Distributes incoming data to a changeable list of receive objects. */
+/* 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. */
+/* */
+/* ---------------------------------------------------------------------------- */
+/*
+ connect <symbol list>: store receive objects in list of receivers
+ disconnect <symbol list>: remove objects from list of receivers
+ clear: clear list of receivers
+ send <anything>: send anything to all receives named in the list of receivers */
+
+#include "m_pd.h"
+
+#include <string.h>
+#include <stdio.h>
+
+#define MAX_REC 64 /* maximum number of receive objects */
+#define MAX_ARG 32 /* maximum number of arguments to pass on */
+
+static char *version = "dist v0.1, written by Olaf Matthes <olaf.matthes@gmx.de>";
+
+static t_class *dist_class;
+
+typedef struct _dist
+{
+ t_object x_obj;
+ t_symbol *x_sym[MAX_REC]; /* names of receiving objects */
+ t_int x_rec; /* current number of receiving objects */
+ t_int x_verbose; /* set to 0 to turn off detailed output in Pd window */
+} t_dist;
+
+static void dist_bang(t_dist *x)
+{
+ int i;
+
+ for(i = 0; i <= x->x_rec; i++)
+ {
+ if (x->x_sym[i]->s_thing) pd_bang(x->x_sym[i]->s_thing);
+ }
+}
+
+static void dist_float(t_dist *x, t_float f)
+{
+ int i;
+
+ for(i = 0; i <= x->x_rec; i++)
+ {
+ if (x->x_sym[i]->s_thing) pd_float(x->x_sym[i]->s_thing, f);
+ }
+}
+
+static void dist_symbol(t_dist *x, t_symbol *s)
+{
+ int i;
+
+ for(i = 0; i <= x->x_rec; i++)
+ {
+ if (x->x_sym[i]->s_thing) pd_symbol(x->x_sym[i]->s_thing, s);
+ }
+}
+
+static void dist_pointer(t_dist *x, t_gpointer *gp)
+{
+ int i;
+
+ for(i = 0; i <= x->x_rec; i++)
+ {
+ if (x->x_sym[i]->s_thing) pd_pointer(x->x_sym[i]->s_thing, gp);
+ }
+}
+
+static void dist_list(t_dist *x, t_symbol *s, int argc, t_atom *argv)
+{
+ int i;
+
+ for(i = 0; i <= x->x_rec; i++)
+ {
+ if (x->x_sym[i]->s_thing) pd_list(x->x_sym[i]->s_thing, s, argc, argv);
+ }
+}
+
+static void dist_anything(t_dist *x, t_symbol *s, int argc, t_atom *argv)
+{
+ int i;
+
+ for(i = 0; i <= x->x_rec; i++)
+ {
+ if (x->x_sym[i]->s_thing) typedmess(x->x_sym[i]->s_thing, s, argc, argv);
+ }
+}
+
+ /* send 'anything' to receiver */
+static void dist_send(t_dist *x, t_symbol *s, int argc, t_atom *argv)
+{
+ int i;
+ t_atom av[MAX_ARG]; /* the 'new' t_atom without first element */
+ t_int ac = argc - 1; /* the 'new' number of arguments */
+
+ if(ac > MAX_ARG)
+ {
+ post("dist: too many arguments!");
+ return;
+ }
+
+ for(i = 1; i < argc; i++)
+ {
+ av[i - 1] = argv[i]; /* just copy, don't care about types */
+ }
+ /* send only argument-part to receivers */
+ for(i = 0; i <= x->x_rec; i++)
+ {
+ if (x->x_sym[i]->s_thing) pd_forwardmess(x->x_sym[i]->s_thing, argc, argv);
+ }
+}
+
+static void dist_connect(t_dist *x, t_symbol *s, int argc, t_atom *argv)
+{
+ int i, j;
+ int exist;
+ t_symbol *name;
+ /* just append every new receive-name to end of list */
+ for(i = 0; i < argc; i++)
+ {
+ exist = 0;
+ if(x->x_rec == MAX_REC - 1)
+ {
+ post("dist: too many connections in use!");
+ return;
+ }
+ name = atom_getsymbolarg(i, argc, argv);
+ for(j = 0; j <= x->x_rec; j++)
+ {
+ /* check if the name already exists */
+ if(x->x_sym[j] == name)
+ {
+ post("dist: \"%s\" already exists in list of receivers", name->s_name);
+ exist = 1; /* indicate that it _does_ exist */
+ }
+ }
+ /* add it in case it's a new one */
+ if(!exist)
+ {
+ x->x_rec++;
+ x->x_sym[x->x_rec] = name;
+ if(x->x_verbose)post("dist: \"%s\" added to list of receivers", x->x_sym[x->x_rec]->s_name);
+ }
+ }
+}
+
+static void dist_disconnect(t_dist *x, t_symbol *s, int argc, t_atom *argv)
+{
+ /* need to rearrange list in order to get rid of empty entries */
+ int i, j, k;
+ int done;
+ t_symbol *name;
+
+ for(i = 0; i < argc; i++)
+ {
+ name = atom_getsymbolarg(i, argc, argv); /* the one we're going to remove */
+ done = 0; /* not yet removed */
+ for(j = 0; j <= x->x_rec; j++) /* search for it... */
+ {
+ if(x->x_sym[j] == name)
+ {
+ x->x_rec--;
+ if(x->x_verbose)post("dist: \"%s\" removed from list of receivers", x->x_sym[j]->s_name);
+ x->x_sym[j] = NULL; /* delete entry */
+ /* rearrange list now: move entries to close the gap */
+ for(k = j; k <= x->x_rec; k++)
+ {
+ x->x_sym[k] = x->x_sym[k + 1];
+ }
+ done = 1; /* removed successfully */
+ }
+ }
+ if(!done)post("dist: \"%s\" not in list of receivers, ignored", name->s_name);
+ }
+}
+
+static void dist_clear(t_dist *x)
+{
+ int i;
+
+ for(i = 0; i < MAX_REC; i++)
+ {
+ x->x_sym[i] = NULL;
+ }
+ x->x_rec = -1;
+}
+
+static void dist_print(t_dist *x)
+{
+ int i;
+
+ if(x->x_rec == 0)
+ {
+ post("dist: there is one object in receiver list:");
+ }
+ else if(x->x_rec > 0)
+ {
+ post("dist: there are %d objects in receiver list:", x->x_rec + 1);
+ }
+ else
+ {
+ post("dist: there are no objects in receiver list");
+ return;
+ }
+
+ for(i = 0; i <= x->x_rec; i++)
+ {
+ post(" \"%s\"", x->x_sym[i]->s_name);
+ }
+}
+
+static void *dist_new(t_symbol *s, int argc, t_atom *argv)
+{
+ int i;
+
+ t_dist *x = (t_dist *)pd_new(dist_class);
+
+ x->x_rec = -1;
+ x->x_verbose = 1; /* display info on connect/disconnect */
+ for(i = 0; i < argc; i++)
+ {
+ x->x_sym[i] = atom_getsymbolarg(i, argc, argv);
+ x->x_rec++;
+ }
+ return (x);
+}
+
+#ifndef MAXLIB
+void dist_setup(void)
+{
+ dist_class = class_new(gensym("dist"), (t_newmethod)dist_new, 0,
+ sizeof(t_dist), 0, A_GIMME, 0);
+#else
+void maxlib_dist_setup(void)
+{
+ dist_class = class_new(gensym("maxlib_dist"), (t_newmethod)dist_new, 0,
+ sizeof(t_dist), 0, A_GIMME, 0);
+#endif
+ class_addcreator((t_newmethod)dist_new, gensym("d"), A_GIMME, 0);
+ class_addbang(dist_class, dist_bang);
+ class_addfloat(dist_class, dist_float);
+ class_addsymbol(dist_class, dist_symbol);
+ class_addpointer(dist_class, dist_pointer);
+ class_addlist(dist_class, dist_list);
+ class_addmethod(dist_class, (t_method)dist_connect, gensym("connect"), A_GIMME, 0);
+ class_addmethod(dist_class, (t_method)dist_disconnect, gensym("disconnect"), A_GIMME, 0);
+ class_addmethod(dist_class, (t_method)dist_clear, gensym("clear"), 0);
+ class_addmethod(dist_class, (t_method)dist_print, gensym("print"), 0);
+ class_addmethod(dist_class, (t_method)dist_send, gensym("send"), A_GIMME, 0);
+ class_addanything(dist_class, dist_anything);
+#ifndef MAXLIB
+
+ post(version);
+#else
+ class_addcreator((t_newmethod)dist_new, gensym("dist"), A_GIMME, 0);
+ class_sethelpsymbol(dist_class, gensym("maxlib/dist-help.pd"));
+#endif
+}
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