Incorporated TextureIO texture loader (and, eventually, writer) and

associated classes for being able to easily read in and display
textures with OpenGL. Collaboration with Chris Campbell from the
Java2D team. Supports multiple file formats both through ImageIO as
well as custom texture loaders for DDS, SGI and TGA files. Writing of
textures back to disk is not yet implemented. Reading of mipmaps from
files which support it as well as autogeneration of mipmaps are not
yet well supported and usage of mipmap arguments in the API still need
to be rethought. Added TestTexture demo to jogl-demos workspace to
show simple usage.


git-svn-id: file:///usr/local/projects/SUN/JOGL/git-svn/svn-server-sync/jogl/trunk@519 232f8b59-042b-4e1e-8c03-345bb8c30851

1 files changed, 223 insertions, 0 deletions

diff --git a/src/classes/com/sun/opengl/utils/LEDataInputStream.java b/src/classes/com/sun/opengl/utils/LEDataInputStream.java
new file mode 100755
index 000000000..eb041c161
--- /dev/null
+++ b/src/classes/com/sun/opengl/utils/LEDataInputStream.java
@@ -0,0 +1,223 @@
+/*
+ * Copyright (c) 2003 Sun Microsystems, Inc. All Rights Reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ * 
+ * - Redistribution of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 
+ * - Redistribution in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ * 
+ * Neither the name of Sun Microsystems, Inc. or the names of
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ * 
+ * This software is provided "AS IS," without a warranty of any kind. ALL
+ * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES,
+ * INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A
+ * PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN
+ * MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR
+ * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
+ * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR
+ * ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR
+ * DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE
+ * DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY,
+ * ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF
+ * SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
+ * 
+ * You acknowledge that this software is not designed or intended for use
+ * in the design, construction, operation or maintenance of any nuclear
+ * facility.
+ * 
+ * Sun gratefully acknowledges that this software was originally authored
+ * and developed by Kenneth Bradley Russell and Christopher John Kline.
+ */
+
+package	com.sun.opengl.utils;
+
+import java.io.DataInput;
+import java.io.DataInputStream;
+import java.io.FilterInputStream;
+import java.io.InputStream;
+import java.io.FileInputStream;
+import java.io.EOFException;
+import java.io.IOException;
+
+/**
+ * Little Endian Data Input Stream.
+ *
+ * This class implements an input stream filter to allow reading
+ * of java native datatypes from an input stream which has those
+ * native datatypes stored in a little endian byte order.<p>
+ *
+ * This is the sister class of the DataInputStream which allows
+ * for reading of java native datatypes from an input stream with
+ * the datatypes stored in big endian byte order.<p>
+ *
+ * This class implements the minimum required and calls DataInputStream
+ * for some of the required methods for DataInput.<p>
+ *
+ * Not all methods are implemented due to lack of immediatte requirement
+ * for that functionality. It is not clear if it is ever going to be
+ * functionally required to be able to read UTF data in a LittleEndianManner<p>
+ *
+ * @author	Robin Luiten
+ * @version	1.1	15/Dec/1997
+ */
+class LEDataInputStream extends FilterInputStream implements DataInput
+{
+	/**
+	 * To reuse	some of	the	non	endian dependent methods from
+	 * DataInputStreams	methods.
+	 */
+	DataInputStream	dataIn;
+
+	public LEDataInputStream(InputStream in)
+	{
+		super(in);
+		dataIn = new DataInputStream(in);
+	}
+
+	public void close() throws IOException
+	{
+		dataIn.close();		// better close as we create it.
+							// this will close underlying as well.
+	}
+
+	public synchronized	final int read(byte	b[]) throws	IOException
+	{
+		return dataIn.read(b, 0, b.length);
+	}
+
+	public synchronized	final int read(byte	b[], int off, int len) throws IOException
+	{
+		int	rl = dataIn.read(b,	off, len);
+		return rl;
+	}
+
+	public final void readFully(byte b[]) throws IOException
+	{
+		dataIn.readFully(b,	0, b.length);
+	}
+
+	public final void readFully(byte b[], int off, int len)	throws IOException
+	{
+		dataIn.readFully(b,	off, len);
+	}
+
+	public final int skipBytes(int n) throws IOException
+	{
+		return dataIn.skipBytes(n);
+	}
+
+	public final boolean readBoolean() throws IOException
+	{
+		int	ch = dataIn.read();
+		if (ch < 0)
+			throw new EOFException();
+		return (ch != 0);
+	}
+
+	public final byte readByte() throws	IOException
+	{
+		int	ch = dataIn.read();
+		if (ch < 0)
+			throw new EOFException();
+		return (byte)(ch);
+	}
+
+	public final int readUnsignedByte()	throws IOException
+	{
+		int	ch = dataIn.read();
+		if (ch < 0)
+			throw new EOFException();
+		return ch;
+	}
+
+	public final short readShort() throws IOException
+	{
+		int	ch1	= dataIn.read();
+		int	ch2	= dataIn.read();
+		if ((ch1 | ch2)	< 0)
+			 throw new EOFException();
+		return (short)((ch1	<< 0) +	(ch2 <<	8));
+	}
+
+	public final int readUnsignedShort() throws	IOException
+	{ 
+		int	ch1	= dataIn.read();
+		int	ch2	= dataIn.read();
+		if ((ch1 | ch2)	< 0)
+			 throw new EOFException();
+		return (ch1	<< 0) +	(ch2 <<	8);
+	}
+
+	public final char readChar() throws	IOException
+	{
+		int	ch1	= dataIn.read();
+		int	ch2	= dataIn.read();
+		if ((ch1 | ch2)	< 0)
+			 throw new EOFException();
+		return (char)((ch1 << 0) + (ch2	<< 8));
+	}
+
+	public final int readInt() throws IOException
+	{
+		int	ch1	= dataIn.read();
+		int	ch2	= dataIn.read();
+		int	ch3	= dataIn.read();
+		int	ch4	= dataIn.read();
+		if ((ch1 | ch2 | ch3 | ch4)	< 0)
+			 throw new EOFException();
+		return ((ch1 <<	0) + (ch2 << 8)	+ (ch3 << 16) +	(ch4 <<	24));
+	}
+
+	public final long readLong() throws	IOException
+	{
+		int	i1 = readInt();
+		int	i2 = readInt();
+		return ((long)(i1) & 0xFFFFFFFFL) +	(i2	<< 32);
+	}
+
+	public final float readFloat() throws IOException
+	{
+		return Float.intBitsToFloat(readInt());
+	}
+
+	public final double	readDouble() throws	IOException
+	{
+		return Double.longBitsToDouble(readLong());
+	}
+
+	/**
+	 * dont call this it is not implemented.
+	 * @return empty new string 
+	 **/
+	public final String	readLine() throws IOException
+	{
+		return new String();
+	}
+
+	/**
+	 * dont call this it is not implemented
+	 * @return empty new string 
+	 **/
+	public final String	readUTF() throws IOException
+	{
+		return new String();
+	}
+
+	/**
+	 * dont call this it is not implemented
+	 * @return empty new string 
+	 **/
+	public final static	String readUTF(DataInput in) throws	IOException
+	{
+		return new String();
+	}
+}
+