From d6b088044e161a27d49df537bbb6d998a8d0e50d Mon Sep 17 00:00:00 2001
From: musil <tmusil@users.sourceforge.net>
Date: Sat, 9 Dec 2006 02:00:52 +0000
Subject: // class_sethelpsymbol(); changed help-*.pd to *-help.pd chanded file
 structure to standard 1st step remove old

svn path=/trunk/externals/iemlib/; revision=6756
---
 iemlib2/src/modulo_counter.c | 82 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 82 insertions(+)
 create mode 100644 iemlib2/src/modulo_counter.c

(limited to 'iemlib2/src/modulo_counter.c')

diff --git a/iemlib2/src/modulo_counter.c b/iemlib2/src/modulo_counter.c
new file mode 100644
index 0000000..435ac37
--- /dev/null
+++ b/iemlib2/src/modulo_counter.c
@@ -0,0 +1,82 @@
+/* For information on usage and redistribution, and for a DISCLAIMER OF ALL
+* WARRANTIES, see the file, "LICENSE.txt," in this distribution.
+
+iemlib2 written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2006 */
+
+#include "m_pd.h"
+#include "iemlib.h"
+
+/* ---------------- modulo-counter. ----------------- */
+/* -------- counter increments if input a bang ------ */
+/* -------- output is a modulo function. ------------ */
+
+static t_class *modulo_counter_class;
+
+typedef struct _modulo_counter
+{
+  t_object x_obj;
+  int      x_max;
+  int      x_cur;
+} t_modulo_counter;
+
+static void modulo_counter_bang(t_modulo_counter *x)
+{
+  outlet_float(x->x_obj.ob_outlet, x->x_cur++);
+  x->x_cur = x->x_cur % x->x_max;
+}
+
+static void modulo_counter_float(t_modulo_counter *x, t_floatarg max)
+{
+  int i = (int)max;
+  
+  if(i < 1)
+    i = 1;
+  if(x->x_cur >= i)
+    x->x_cur = i - 1;
+  x->x_max = i;
+}
+
+static void modulo_counter_ft1(t_modulo_counter *x, t_floatarg set_init)
+{
+  int i = (int)set_init;
+  
+  if(i < 0)
+    i = 0;
+  if(i >= x->x_max)
+    i = x->x_max - 1;
+  x->x_cur = i;
+}
+
+static void *modulo_counter_new(t_symbol *s, int ac, t_atom *av)
+{
+  t_modulo_counter *x = (t_modulo_counter *)pd_new(modulo_counter_class);
+  int max = 1, cur = 0;
+  
+  if((ac > 0) && IS_A_FLOAT(av, 0))
+    max = atom_getintarg(0, ac, av);
+  if((ac > 1) && IS_A_FLOAT(av, 1))
+    cur = atom_getintarg(1, ac, av);
+  if(max < 1)
+    x->x_max = 1;
+  else
+    x->x_max = max;
+  if(cur < 0)
+    cur = 0;
+  if(cur >= x->x_max)
+    cur = x->x_max - 1;
+  x->x_cur = cur;
+  outlet_new(&x->x_obj, &s_float);
+  inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("ft1"));
+  return (x);
+}
+
+void modulo_counter_setup(void)
+{
+  modulo_counter_class = class_new(gensym("modulo_counter"),
+    (t_newmethod)modulo_counter_new, 0,
+    sizeof(t_modulo_counter), 0, A_GIMME, 0);
+  class_addbang(modulo_counter_class, (t_method)modulo_counter_bang);
+  class_addfloat(modulo_counter_class, (t_method)modulo_counter_float);
+  class_addmethod(modulo_counter_class, (t_method)modulo_counter_ft1, gensym("ft1"), A_FLOAT, 0);
+//  class_sethelpsymbol(modulo_counter_class, gensym("iemhelp/help-modulo_counter"));
+}
-- 
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