From a7e6303e3e7e87bf90b21821d2e419ed4799783c Mon Sep 17 00:00:00 2001
From: musil <tmusil@users.sourceforge.net>
Date: Fri, 28 Jun 2013 17:25:22 +0000
Subject: initial check in of double precision library of iem

svn path=/trunk/externals/iem/iem_dp/; revision=17167
---
 src/wrap~~.c | 73 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 73 insertions(+)
 create mode 100755 src/wrap~~.c

(limited to 'src/wrap~~.c')

diff --git a/src/wrap~~.c b/src/wrap~~.c
new file mode 100755
index 0000000..3c0794d
--- /dev/null
+++ b/src/wrap~~.c
@@ -0,0 +1,73 @@
+/* For information on usage and redistribution, and for a DISCLAIMER OF ALL
+* WARRANTIES, see the file, "LICENSE.txt," in this distribution.
+
+iem_dp written by IOhannes m zmoelnig, Thomas Musil, Copyright (c) IEM KUG Graz Austria 1999 - 2007 */
+/* double precision library */
+
+
+#include "m_pd.h"
+#include "iemlib.h"
+#include "iem_dp.h"
+
+/* -------------------------- wrap~~ ------------------------------ */
+/* based on miller's wrap~ which is part of pd */
+
+static t_class *wrap_tilde_tilde_class;
+
+typedef struct _wrap_tilde_tilde
+{
+  t_object  x_obj;
+  t_float   x_f;
+} t_wrap_tilde_tilde;
+
+static void *wrap_tilde_tilde_new(void)
+{
+  t_wrap_tilde_tilde *x = (t_wrap_tilde_tilde *)pd_new(wrap_tilde_tilde_class);
+  
+  inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_signal, &s_signal);
+  outlet_new(&x->x_obj, &s_signal);
+  outlet_new(&x->x_obj, &s_signal);
+  x->x_f = 0;
+  return(x);
+}
+
+static t_int *wrap_tilde_tilde_perform(t_int *w)
+{
+  t_sample *inc = (t_sample *)(w[1]);
+  t_sample *inf = (t_sample *)(w[2]);
+  t_sample *outc = (t_sample *)(w[3]);
+  t_sample *outf = (t_sample *)(w[4]);
+  int n = (int)(w[5]);    
+  
+  while(n--)
+  {
+    double coarse = *inc++;
+    double fine = *inf++;
+    double d=iem_dp_calc_sum(coarse, fine);
+    int k=(int)d;
+    t_float f;
+
+    if(d > 0)
+      d -= (double)k;
+    else
+      d -= (double)(k-1);
+	  
+    f = iem_dp_cast_to_float(d);
+    *outf++ = iem_dp_calc_residual(d, f);
+	  *outc++ = f;
+  }
+  return(w+6);
+}
+
+static void wrap_tilde_tilde_dsp(t_wrap_tilde_tilde *x, t_signal **sp)
+{
+  dsp_add(wrap_tilde_tilde_perform, 5, sp[0]->s_vec, sp[1]->s_vec, sp[2]->s_vec, sp[3]->s_vec, sp[0]->s_n);
+}
+
+void wrap_tilde_tilde_setup(void)
+{
+  wrap_tilde_tilde_class = class_new(gensym("wrap~~"), (t_newmethod)wrap_tilde_tilde_new, 0, 
+    sizeof(t_wrap_tilde_tilde), 0, 0);
+  CLASS_MAINSIGNALIN(wrap_tilde_tilde_class, t_wrap_tilde_tilde, x_f);
+  class_addmethod(wrap_tilde_tilde_class, (t_method)wrap_tilde_tilde_dsp, gensym("dsp"), 0);
+}
-- 
cgit v1.2.1