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authorDavid Robillard <d@drobilla.net>2012-08-20 05:16:04 +0000
committerDavid Robillard <d@drobilla.net>2012-08-20 05:16:04 +0000
commit734a9f490f2f8cb4552c71bfac8fc779f836c436 (patch)
tree34d286b3e8cbd291267ebe3ae6804ba52959c68b /src/exp2ap.h
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Add fomp.lv2, a port of Fons' modular-oriented LADSPA plugins to LV2.
git-svn-id: http://svn.drobilla.net/lad/trunk/plugins/fomp.lv2@4727 a436a847-0d15-0410-975c-d299462d15a1
Diffstat (limited to 'src/exp2ap.h')
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1 files changed, 28 insertions, 0 deletions
diff --git a/src/exp2ap.h b/src/exp2ap.h
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+/*
+ Copyright (C) 2003-2008 Fons Adriaensen <fons@kokkinizita.net>
+
+ 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 <math.h>
+
+static inline float exp2ap (float x)
+{
+ const int i = (int)(floorf (x));
+ x -= i;
+ return ldexpf (1 + x * (0.6930f + x * (0.2416f + x * (0.0517f + x * 0.0137f))), i);
+}
+
+