1 files changed, 106 insertions, 0 deletions
diff --git a/src/multiplex.c b/src/multiplex.c
new file mode 100644
index 0000000..571db96
--- /dev/null
+++ b/src/multiplex.c
@@ -0,0 +1,106 @@
+
+/* 1903:forum::für::umläute:2005 */
+
+/*
+ *  mulitplex   :  multiplex a specified input to the output
+ *
+ * THINK: should the selector-inlet be the first or the last ???
+ * pros/cons:
+ *  the 1st inlet being the selector is not consistant with pd (hot/cold)
+ *   but as it since the hot inlet is selectable, the whole object is not really consitant
+ *  numbering would have to start with 1 (for the 1st not-leftmost inlet)
+ * if the selector is rightmost this would mean: cold is right(most), hot is (somewhere) left
+ * numbering would be ok
+ *
+ * conclusio: make the selector rightmost
+ *
+ */
+
+#include "zexy.h"
+#include <stdio.h>
+
+
+/* ------------------------- mux ------------------------------- */
+
+/*
+  a multiplexer
+*/
+
+static t_class *mux_class;
+static t_class *muxproxy_class;
+
+typedef struct _mux
+{
+  t_object x_obj;
+  struct _muxproxy  **x_proxy;
+
+  int i_count;
+  int i_selected;
+  t_inlet **in;
+} t_mux;
+
+
+typedef struct _muxproxy
+{
+  t_object  p_ob;
+  t_mux    *p_master;
+  int id;
+} t_muxproxy;
+
+static void mux_select(t_mux *x, t_float f)
+{
+  x->i_selected=f;
+}
+
+static void mux_anything(t_muxproxy *y, t_symbol *s, int argc, t_atom *argv)
+{
+  t_mux*x=y->p_master;
+  if(y->id==x->i_selected)
+    outlet_anything(x->x_obj.ob_outlet, s, argc, argv);
+}
+
+static void *mux_new(t_symbol *s, int argc, t_atom *argv)
+{
+  int n = (argc < 2)?2:argc;
+  t_mux *x = (t_mux *)pd_new(mux_class);
+  //  t_muxproxy *y=(t_muxproxy*)pd_new(muxproxy_class);
+  x->x_proxy = (t_muxproxy**)getbytes(sizeof(t_muxproxy*));
+
+  x->i_selected=0;
+  x->i_count = n;
+  x->in = (t_inlet **)getbytes(x->i_count * sizeof(t_inlet *));
+
+  for (n = 0; n<x->i_count; n++) {
+    x->x_proxy[n]=(t_muxproxy*)pd_new(muxproxy_class);
+    x->x_proxy[n]->p_master = x;
+    x->x_proxy[n]->id=n;
+    x->in[n] = inlet_new ((t_object*)x, (t_pd*)x->x_proxy[n], 0,0);
+  }
+
+  inlet_new(&x->x_obj, &x->x_obj.ob_pd, gensym("float"), gensym(""));
+
+  outlet_new(&x->x_obj, 0);
+  return (x);
+}
+
+static void mux_free(t_mux*x){
+
+}
+
+void multiplex_setup(void)
+{
+  mux_class = class_new(gensym("multiplex"), (t_newmethod)mux_new,
+			(t_method)mux_free, sizeof(t_mux), CLASS_NOINLET, A_GIMME,  0);
+  class_addcreator((t_newmethod)mux_new, gensym("mux"), A_GIMME, 0);
+ 
+  class_addmethod   (mux_class, (t_method)mux_select, gensym(""), A_DEFFLOAT, 0);
+
+  muxproxy_class = class_new(gensym("mux proxy"), 0, 0,
+			    sizeof(t_muxproxy),
+			    CLASS_PD | CLASS_NOINLET, 0);
+  class_addanything(muxproxy_class, mux_anything);
+
+  class_sethelpsymbol(mux_class, gensym("zexy/multiplex"));
+
+  zexy_register("multiplex");
+}