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
---
 iem_t3_lib/src/t3_metro.c | 113 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 113 insertions(+)
 create mode 100644 iem_t3_lib/src/t3_metro.c

(limited to 'iem_t3_lib/src/t3_metro.c')

diff --git a/iem_t3_lib/src/t3_metro.c b/iem_t3_lib/src/t3_metro.c
new file mode 100644
index 0000000..003d9ef
--- /dev/null
+++ b/iem_t3_lib/src/t3_metro.c
@@ -0,0 +1,113 @@
+/* For information on usage and redistribution, and for a DISCLAIMER OF ALL
+* WARRANTIES, see the file, "LICENSE.txt," in this distribution.
+
+iem_t3_lib written by Gerhard Eckel, Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2006 */
+
+
+#include "m_pd.h"
+#include "iemlib.h"
+
+/* ------------------------ t3_metro ---------------------------- */
+static t_class *t3_metro_class;
+
+typedef struct _t3_metro
+{
+  t_object x_obj;
+  t_clock  *x_clock;
+  double   x_metrotime;
+  double   x_ticks2ms;
+  double   x_t3_bang;
+  int      x_hit;
+  void     *x_out_next;
+} t_t3_metro;
+
+static void t3_metro_stop(t_t3_metro *x)
+{
+  clock_unset(x->x_clock);
+}
+
+static void t3_metro_tick(t_t3_metro *x)
+{
+  double dticks;
+  int iticks;
+  
+  x->x_hit = 0;
+  outlet_float(x->x_out_next, x->x_metrotime);
+  outlet_float(x->x_obj.ob_outlet, x->x_t3_bang);
+  dticks = (x->x_metrotime + x->x_t3_bang)/x->x_ticks2ms;
+  iticks = (int)dticks;
+  x->x_t3_bang = (dticks - (double)iticks)*x->x_ticks2ms;
+  if(!x->x_hit)
+    clock_delay(x->x_clock, (double)iticks*x->x_ticks2ms);
+}
+
+static void t3_metro_float(t_t3_metro *x, t_floatarg t3_bang)
+{
+  double dticks;
+  int iticks;
+  
+  if(t3_bang < 0)
+    t3_bang = 0;
+  dticks = (double)t3_bang/x->x_ticks2ms;
+  iticks = (int)dticks;
+  x->x_t3_bang = (dticks - (double)iticks)*x->x_ticks2ms;
+  clock_delay(x->x_clock, (double)iticks*x->x_ticks2ms);
+  x->x_hit = 1;
+}
+
+static void t3_metro_start(t_t3_metro *x, t_floatarg f)
+{
+  t3_metro_float(x, f);
+  x->x_hit = 1;
+}
+
+static void t3_metro_ft1(t_t3_metro *x, t_floatarg f)
+{
+  if(f < 0.01) f = 0.01;
+  x->x_metrotime = (double)f;
+}
+
+static void t3_metro_list(t_t3_metro *x, t_symbol *s, int ac, t_atom *av)
+{
+  if((ac == 2)&&IS_A_FLOAT(av,0)&&IS_A_FLOAT(av,1))
+  {
+    t3_metro_ft1(x, atom_getfloatarg(1, ac, av));
+    t3_metro_float(x, atom_getfloatarg(0, ac, av));
+  }
+}
+
+static void t3_metro_free(t_t3_metro *x)
+{
+  clock_free(x->x_clock);
+}
+
+static void *t3_metro_new(t_symbol *s, int ac, t_atom *av)
+{
+  t_t3_metro *x = (t_t3_metro *)pd_new(t3_metro_class);
+  
+  x->x_metrotime = 10.0;
+  x->x_t3_bang = 0.0;
+  x->x_hit = 0;
+  if((ac == 1)&&IS_A_FLOAT(av,0))
+  {
+    t3_metro_ft1(x, atom_getfloatarg(0, ac, av));
+  }
+  x->x_ticks2ms = 1000.0*(double)sys_getblksize()/(double)sys_getsr();
+  x->x_clock = clock_new(x, (t_method)t3_metro_tick);
+  outlet_new(&x->x_obj, &s_float);
+  x->x_out_next = outlet_new(&x->x_obj, &s_float);
+  inlet_new(&x->x_obj, &x->x_obj.ob_pd, gensym("float"), gensym("ft1"));
+  return (x);
+}
+
+void t3_metro_setup(void)
+{
+  t3_metro_class = class_new(gensym("t3_metro"), (t_newmethod)t3_metro_new,
+    (t_method)t3_metro_free, sizeof(t_t3_metro), 0, A_GIMME, 0);
+  class_addmethod(t3_metro_class, (t_method)t3_metro_stop, gensym("stop"), 0);
+  class_addmethod(t3_metro_class, (t_method)t3_metro_start, gensym("start"), A_FLOAT, 0);
+  class_addmethod(t3_metro_class, (t_method)t3_metro_ft1, gensym("ft1"), A_FLOAT, 0);
+  class_addfloat(t3_metro_class, (t_method)t3_metro_float);
+  class_addlist(t3_metro_class, (t_method)t3_metro_list);
+//  class_sethelpsymbol(t3_metro_class, gensym("iemhelp/help-t3_metro"));
+}
-- 
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