zexy-2.0:

- use of abstractions for objects that allow it
- some objects are build both as externals and abstractions (as slower fallbacks)
- code-layout is now 1:1 c-file<->object (this should allow for building of zexy as  a collection of externals instead as a big library)
- matrix-objects have moved to iemmatrix !!

svn path=/trunk/externals/zexy/; revision=2641

1 files changed, 107 insertions, 0 deletions

diff --git a/src/packel.c b/src/packel.c
new file mode 100644
index 0000000..67c5211
--- /dev/null
+++ b/src/packel.c
@@ -0,0 +1,107 @@
+/******************************************************
+ *
+ * zexy - implementation file
+ *
+ * copyleft (c) IOhannes m zmölnig
+ *
+ *   1999:forum::für::umläute:2004
+ *
+ *   institute of electronic music and acoustics (iem)
+ *
+ ******************************************************
+ *
+ * license: GNU General Public License v.2
+ *
+ ******************************************************/
+
+
+/* 3108:forum::für::umläute:2000 */
+
+/* ------------------------- packel ------------------------------- */
+
+/*
+  get the nth element of a package
+*/
+
+#include "zexy.h"
+#include <string.h>
+// do we need memory.h ?
+#include <memory.h>
+
+
+static t_class *packel_class;
+
+typedef struct _packel
+{
+  t_object x_obj;
+  t_float position;
+} t_packel;
+
+static void packel_list(t_packel *x, t_symbol *s, int argc, t_atom *argv)
+{
+  int mypos = x->position;
+
+  if (mypos) {
+    t_atom *current;
+    int pos = (mypos < 0)?(argc+mypos):(mypos-1);
+
+    if(argc==0){
+      if (pos==0||pos==-1)outlet_bang(x->x_obj.ob_outlet);
+      return;
+    }
+    
+    if (pos < 0 || pos >= argc)return;
+
+    current = &(argv[pos]);
+
+    switch (current->a_type) {
+    case A_FLOAT:
+      outlet_float(x->x_obj.ob_outlet, atom_getfloat(current));
+      break;
+    case A_SYMBOL:
+      outlet_symbol(x->x_obj.ob_outlet, atom_getsymbol(current));
+      break;
+    case A_POINTER:
+      outlet_pointer(x->x_obj.ob_outlet, current->a_w.w_gpointer);
+      break;
+    case A_NULL:
+      outlet_bang(x->x_obj.ob_outlet);
+    default:
+	  ;
+    }
+  } else outlet_list(x->x_obj.ob_outlet, s, argc, argv);
+}
+
+static void packel_anything(t_packel *x, t_symbol *s, int argc, t_atom *argv)
+{
+  t_atom *av2 = (t_atom *)getbytes((argc + 1) * sizeof(t_atom));
+  int i;
+
+  for (i = 0; i < argc; i++)
+    av2[i + 1] = argv[i];
+  SETSYMBOL(av2, s);
+  packel_list(x, gensym("list"), argc+1, av2);
+  freebytes(av2, (argc + 1) * sizeof(t_atom));
+}
+
+static void *packel_new(t_floatarg f)
+{
+  t_packel *x = (t_packel *)pd_new(packel_class);
+  outlet_new(&x->x_obj, 0);
+  floatinlet_new(&x->x_obj, &x->position);
+  x->position = (int) f;
+
+  return (x);
+}
+
+void packel_setup(void)
+{
+  packel_class = class_new(gensym("packel"), (t_newmethod)packel_new, 
+			   0, sizeof(t_packel), 0, A_DEFFLOAT, 0);
+
+  class_addlist  (packel_class, packel_list);
+  class_addanything(packel_class, packel_anything);
+
+  class_sethelpsymbol(packel_class, gensym("zexy/packel"));
+  zexy_register("packel");
+}