import of Jake2 version sunrisesunrise

1 files changed, 77 insertions, 0 deletions

diff --git a/src/jake2/game/EndianHandler.java b/src/jake2/game/EndianHandler.java
new file mode 100644
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+++ b/src/jake2/game/EndianHandler.java
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+/*
+ * AbstractEndianHandler.java
+ * Copyright (C) 2003
+ * 
+ * $Id: EndianHandler.java,v 1.1 2004-07-07 19:58:52 hzi Exp $
+ */
+/*
+Copyright (C) 1997-2001 Id Software, Inc.
+
+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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+
+*/
+package jake2.game;
+
+
+/**
+ * AbstractEndianHandler</code>
+ */
+public abstract class EndianHandler{
+
+	private static final int mask = 0xFF;
+	
+	abstract public float BigFloat(float f);
+	abstract public short BigShort(short s);
+	abstract public int BigLong(int i);
+	abstract public float LittleFloat(float f);
+	abstract public short LittleShort(short s);
+	abstract public int LittleLong(int i);
+
+	public static float swapFloat(float f) {
+		int i = Float.floatToRawIntBits(f);
+		i = swapInt(i);
+		f = Float.intBitsToFloat(i);
+		
+		return f;
+	}
+	
+	public static int swapInt(int i) {
+		
+		int a = i & mask;
+		i >>>= 8;
+		
+		a <<= 24;
+		
+		int b = i & mask;
+		
+		i >>>= 8;
+		b <<= 16;
+		
+		int c = i & mask;
+		i >>>= 8;
+		c <<= 8;
+
+		return i | c | b | a;
+	}
+	
+	public static short swapShort(short s) {
+		int a = s & mask;
+		a <<= 8;
+		int b = (s >>> 8) & mask;
+		
+		return (short)(b | a);
+	}
+}