From c299138aaf5e279b36245c72f5442a7c02a76a5b Mon Sep 17 00:00:00 2001
From: Sebastian Dröge <slomo@circular-chaos.org>
Date: Fri, 7 Mar 2008 13:08:42 +0000
Subject: Check for sinh(), cosh() and asinh() and define our own
 implementations if they're not available. Fixes bug #520880.

Original commit message from CVS:
* configure.ac:
* gst/audiofx/Makefile.am:
* gst/audiofx/audiochebband.c:
* gst/audiofx/audiocheblimit.c:
* gst/audiofx/math_compat.h:
Check for sinh(), cosh() and asinh() and define our own
implementations if they're not available. Fixes bug #520880.
---
 gst/audiofx/math_compat.h | 55 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 55 insertions(+)
 create mode 100644 gst/audiofx/math_compat.h

(limited to 'gst/audiofx/math_compat.h')

diff --git a/gst/audiofx/math_compat.h b/gst/audiofx/math_compat.h
new file mode 100644
index 00000000..87296981
--- /dev/null
+++ b/gst/audiofx/math_compat.h
@@ -0,0 +1,55 @@
+/* 
+ * GStreamer
+ * Copyright (C) 2008 Sebastian Dröge <slomo@circular-chaos.org>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#ifndef __MATH_COMPAT_H__
+#define __MATH_COMPAT_H__
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <glib.h>
+#include <math.h>
+
+#ifndef HAVE_ASINH
+static inline gdouble
+asinh (gdouble x)
+{
+  return log(x + sqrt (x * x + 1));
+}
+#endif
+
+#ifndef HAVE_SINH
+static inline gdouble
+sinh (gdouble x)
+{
+  return 0.5 * (exp (x) - exp (-x));
+}
+#endif
+
+#ifndef HAVE_COSH
+static inline gdouble
+cosh (gdouble x)
+{
+  return 0.5 * (exp (x) + exp (-x));
+}
+#endif
+
+#endif /* __MATH_COMPAT_H__ */
-- 
cgit