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-rwxr-xr-xsrc/classes/com/sun/opengl/util/TGAWriter.java118
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diff --git a/src/classes/com/sun/opengl/util/TGAWriter.java b/src/classes/com/sun/opengl/util/TGAWriter.java
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--- a/src/classes/com/sun/opengl/util/TGAWriter.java
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-/*
- * Copyright (c) 2005 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.
- */
-
-package com.sun.opengl.util;
-
-import java.io.*;
-import java.nio.*;
-import java.nio.channels.*;
-
-/**
- * Utility class which helps take fast screenshots of OpenGL rendering
- * results into Targa-format files. Used by the {@link
- * com.sun.opengl.util.Screenshot Screenshot} class; can also be used
- * in conjunction with the {@link com.sun.opengl.util.TileRenderer
- * TileRenderer} class. <P>
- */
-
-public class TGAWriter {
- private static final int TARGA_HEADER_SIZE = 18;
-
- private FileChannel ch;
- private ByteBuffer buf;
-
- /** Constructor for the TGAWriter. */
- public TGAWriter() {
- }
-
- /**
- * Opens the specified Targa file for writing, overwriting any
- * existing file, and sets up the header of the file expecting the
- * data to be filled in before closing it.
- *
- * @param file the file to write containing the screenshot
- * @param width the width of the current drawable
- * @param height the height of the current drawable
- * @param alpha whether the alpha channel should be saved. If true,
- * requires GL_EXT_abgr extension to be present.
- *
- * @throws IOException if an I/O error occurred while writing the
- * file
- */
- public void open(File file,
- int width,
- int height,
- boolean alpha) throws IOException {
- RandomAccessFile out = new RandomAccessFile(file, "rw");
- ch = out.getChannel();
- int pixelSize = (alpha ? 32 : 24);
- int numChannels = (alpha ? 4 : 3);
-
- int fileLength = TARGA_HEADER_SIZE + width * height * numChannels;
- out.setLength(fileLength);
- MappedByteBuffer image = ch.map(FileChannel.MapMode.READ_WRITE, 0, fileLength);
-
- // write the TARGA header
- image.put(0, (byte) 0).put(1, (byte) 0);
- image.put(2, (byte) 2); // uncompressed type
- image.put(12, (byte) (width & 0xFF)); // width
- image.put(13, (byte) (width >> 8)); // width
- image.put(14, (byte) (height & 0xFF)); // height
- image.put(15, (byte) (height >> 8)); // height
- image.put(16, (byte) pixelSize); // pixel size
-
- // go to image data position
- image.position(TARGA_HEADER_SIZE);
- // jogl needs a sliced buffer
- buf = image.slice();
- }
-
- /**
- * Returns the ByteBuffer corresponding to the data for the image.
- * This must be filled in with data in either BGR or BGRA format
- * depending on whether an alpha channel was specified during
- * open().
- */
- public ByteBuffer getImageData() {
- return buf;
- }
-
- public void close() throws IOException {
- // close the file channel
- ch.close();
- buf = null;
- }
-}