From 2b60d55c919e7588f5aff15936e83c300b3660bb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?IOhannes=20m=20zm=C3=B6lnig?=
 <zmoelnig@users.sourceforge.net>
Date: Tue, 22 Mar 2005 20:58:25 +0000
Subject: 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
---
 src/pack_tilde.c | 86 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 86 insertions(+)
 create mode 100644 src/pack_tilde.c

(limited to 'src/pack_tilde.c')

diff --git a/src/pack_tilde.c b/src/pack_tilde.c
new file mode 100644
index 0000000..ca762c9
--- /dev/null
+++ b/src/pack_tilde.c
@@ -0,0 +1,86 @@
+/******************************************************
+ *
+ * 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
+ *
+ ******************************************************/
+
+#include "zexy.h"
+
+
+/* ------------------------ pack~ ----------------------------- */
+/* pack the signal-vector to a float-package */
+
+static t_class *sigpack_class;
+
+typedef struct _sigpack
+{
+  t_object x_obj;
+
+  int vector_length;
+  t_atom *buffer;
+
+} t_sigpack;
+
+static t_int *sigpack_perform(t_int *w)
+{
+  t_float *in = (t_float *)(w[1]);
+  t_sigpack *x = (t_sigpack *)w[2];
+  int n = (int)(w[3]), i = 0;
+  t_atom *buf = x->buffer;
+
+  while (n--) {
+    SETFLOAT(&buf[i], *in++);
+    i++;
+  }
+  outlet_list(x->x_obj.ob_outlet, &s_list, x->vector_length, x->buffer);
+
+  return (w+4);
+}
+
+static void sigpack_dsp(t_sigpack *x, t_signal **sp)
+{
+  if (x->vector_length != sp[0]->s_n) {
+    freebytes(x->buffer, x->vector_length * sizeof(t_atom));
+    x->vector_length = sp[0]->s_n;
+    x->buffer = (t_atom *)getbytes(x->vector_length * sizeof(t_atom));
+  }
+  dsp_add(sigpack_perform, 3, sp[0]->s_vec, x, sp[0]->s_n);
+}
+
+static void *sigpack_new(void)
+{
+  t_sigpack *x = (t_sigpack *)pd_new(sigpack_class);
+  x->vector_length = 0;
+  x->buffer = 0;
+  outlet_new(&x->x_obj, gensym("list"));
+
+  return (x);
+}
+
+static void sigpack_help(void)
+{
+  post("pack~\t:: outputs the signal-vectors as float-packages");
+}
+
+void pack_tilde_setup(void)
+{
+  sigpack_class = class_new(gensym("pack~"), (t_newmethod)sigpack_new, 0,
+			sizeof(t_sigpack), 0, A_DEFFLOAT, 0);
+  class_addmethod(sigpack_class, nullfn, gensym("signal"), 0);
+  class_addmethod(sigpack_class, (t_method)sigpack_dsp, gensym("dsp"), 0);
+
+  class_addmethod(sigpack_class, (t_method)sigpack_help, gensym("help"), 0);
+  class_sethelpsymbol(sigpack_class, gensym("zexy/pack~"));
+
+  zexy_register("pack~");
+}
-- 
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