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authorTom Schouten <doelie@users.sourceforge.net>2003-01-21 10:18:19 +0000
committerTom Schouten <doelie@users.sourceforge.net>2003-01-21 10:18:19 +0000
commitcdf8ded57019d5c905f16422d40be7b1a18ab3bc (patch)
tree92623f40f305b1e2f51198d5c16893c7ca70a2c6 /modules/ratio.c
This commit was generated by cvs2svn to compensate for changes in r350,svn2git-root
which included commits to RCS files with non-trunk default branches. svn path=/trunk/externals/creb/; revision=351
Diffstat (limited to 'modules/ratio.c')
-rw-r--r--modules/ratio.c66
1 files changed, 66 insertions, 0 deletions
diff --git a/modules/ratio.c b/modules/ratio.c
new file mode 100644
index 0000000..777f2b9
--- /dev/null
+++ b/modules/ratio.c
@@ -0,0 +1,66 @@
+/*
+ * ratio.c - multiplies by 2^k such that output is between 1 and 2
+ * Copyright (c) 2000-2003 by Tom Schouten
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+
+#include "m_pd.h"
+
+#define SEQL 16
+
+typedef struct{
+} t_ratio_data;
+
+typedef struct ratio
+{
+ t_object t_ob;
+ t_outlet *x_out;
+ t_ratio_data x_c;
+} t_ratio;
+
+static void ratio_float(t_ratio *x, t_floatarg f)
+{
+ f = (f<0)?(-f):(f);
+ if (f)
+ {
+ while (f < 1.0f) f *= 2.0f;
+ while (f >= 2.0f) f *= 0.5f;
+ }
+ outlet_float(x->x_out, f);
+
+}
+
+static void ratio_free(void)
+{
+}
+
+t_class *ratio_class;
+
+static void *ratio_new(void)
+{
+ t_ratio *x = (t_ratio *)pd_new(ratio_class);
+ x->x_out = outlet_new(&x->t_ob, gensym("float"));
+ return (void *)x;
+}
+
+void ratio_setup(void)
+{
+ ratio_class = class_new(gensym("ratio"), (t_newmethod)ratio_new,
+ (t_method)ratio_free, sizeof(t_ratio), 0, 0);
+ class_addfloat(ratio_class, ratio_float);
+}
+