From 9fee0ec4ca0c5b7a334cc29dbb58e76c7a4c736e Mon Sep 17 00:00:00 2001
From: Michiel Van Der Kolk <not.valid@email.address>
Date: Mon, 11 Jul 2005 15:42:37 +0000
Subject: Songdb java version, source. only 1.5 compatible

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7101 a1c6a512-1295-4272-9138-f99709370657
---
 .../org/tritonus/share/sampled/TVolumeUtils.java   | 55 ++++++++++++++++++++++
 1 file changed, 55 insertions(+)
 create mode 100644 songdbj/org/tritonus/share/sampled/TVolumeUtils.java

(limited to 'songdbj/org/tritonus/share/sampled/TVolumeUtils.java')

diff --git a/songdbj/org/tritonus/share/sampled/TVolumeUtils.java b/songdbj/org/tritonus/share/sampled/TVolumeUtils.java
new file mode 100644
index 0000000000..0eaf1388da
--- /dev/null
+++ b/songdbj/org/tritonus/share/sampled/TVolumeUtils.java
@@ -0,0 +1,55 @@
+/*
+ *	TVolumeUtils.java
+ *
+ *	This file is part of Tritonus: http://www.tritonus.org/
+ */
+
+/*
+ *  Copyright (c) 1999 by Matthias Pfisterer
+ *
+ *   This program 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 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 Library General Public License for more details.
+ *
+ *   You should have received a copy of the GNU Library General Public
+ *   License along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+/*
+|<---            this code is formatted to fit into 80 columns             --->|
+*/
+
+package org.tritonus.share.sampled;
+
+
+
+public class TVolumeUtils
+{
+	private static final double		FACTOR1 = 20.0 / Math.log(10.0);
+	private static final double		FACTOR2 = 1 / 20.0;
+
+
+
+	public static double lin2log(double dLinear)
+	{
+		return FACTOR1 * Math.log(dLinear);
+	}
+
+
+
+	public static double log2lin(double dLogarithmic)
+	{
+		return Math.pow(10.0, dLogarithmic * FACTOR2);
+	}
+}
+
+
+
+/*** TVolumeUtils.java ***/
-- 
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