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Diffstat (limited to 'src/classes/com/sun/opengl/utils/Screenshot.java')
| -rwxr-xr-x | src/classes/com/sun/opengl/utils/Screenshot.java | 208 |
1 files changed, 0 insertions, 208 deletions
diff --git a/src/classes/com/sun/opengl/utils/Screenshot.java b/src/classes/com/sun/opengl/utils/Screenshot.java deleted file mode 100755 index 82e0bc0e1..000000000 --- a/src/classes/com/sun/opengl/utils/Screenshot.java +++ /dev/null @@ -1,208 +0,0 @@ -/* - * 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.utils; - -import java.awt.image.*; -import java.io.*; -import java.nio.*; -import java.nio.channels.*; -import javax.imageio.*; - -import javax.media.opengl.*; -import javax.media.opengl.glu.*; - -/** Utilities for taking screenshots of OpenGL applications. */ - -public class Screenshot { - private static final int TARGA_HEADER_SIZE = 18; - - /** - * Takes a fast screenshot of the current OpenGL drawable to a Targa - * file. Requires the OpenGL context for the desired drawable to be - * current. This is the fastest mechanism for taking a screenshot of - * an application. Contributed by Carsten Weisse of Bytonic Software - * (http://bytonic.de/). - * - * @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 - * - * @throws GLException if an OpenGL context was not current or - * another OpenGL-related error occurred - * @throws IOException if an I/O error occurred while writing the - * file - */ - public static void writeToTargaFile(File file, - int width, - int height) throws GLException, IOException { - RandomAccessFile out = new RandomAccessFile(file, "rw"); - FileChannel ch = out.getChannel(); - int fileLength = TARGA_HEADER_SIZE + width * height * 3; - 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) 24); // pixel size - - // go to image data position - image.position(TARGA_HEADER_SIZE); - // jogl needs a sliced buffer - ByteBuffer bgr = image.slice(); - - GL gl = GLU.getCurrentGL(); - - // Set up pixel storage modes - PixelStorageModes psm = new PixelStorageModes(); - psm.save(gl); - - // read the BGR values into the image buffer - gl.glReadPixels(0, 0, width, height, GL.GL_BGR, - GL.GL_UNSIGNED_BYTE, bgr); - - // Restore pixel storage modes - psm.restore(gl); - - // close the file channel - ch.close(); - } - - /** - * Takes a screenshot of the current OpenGL drawable to a - * BufferedImage. Requires the OpenGL context for the desired - * drawable to be current. Note that the scanlines of the resulting - * image are flipped vertically in order to correctly match the - * OpenGL contents, which takes time and is therefore not as fast as - * the Targa screenshot function. - * - * @param width the width of the current drawable - * @param height the height of the current drawable - * - * @throws GLException if an OpenGL context was not current or - * another OpenGL-related error occurred - */ - public static BufferedImage readToBufferedImage(int width, - int height) throws GLException { - // Allocate necessary storage - BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_3BYTE_BGR); - - GL gl = GLU.getCurrentGL(); - - // Set up pixel storage modes - PixelStorageModes psm = new PixelStorageModes(); - psm.save(gl); - - // read the BGR values into the image - gl.glReadPixels(0, 0, width, height, GL.GL_BGR, - GL.GL_UNSIGNED_BYTE, - ByteBuffer.wrap(((DataBufferByte) image.getRaster().getDataBuffer()).getData())); - - // Restore pixel storage modes - psm.restore(gl); - - // Must flip BufferedImage vertically for correct results - TextureIO.flipImageVertically(image); - return image; - } - - /** - * Takes a screenshot of the current OpenGL drawable to the - * specified file on disk using the ImageIO package. Requires the - * OpenGL context for the desired drawable to be current. This is - * not the fastest mechanism for taking a screenshot but may be more - * convenient than others for getting images for consumption by - * other packages. The file format is inferred from the suffix of - * the given file. - * - * @throws GLException if an OpenGL context was not current or - * another OpenGL-related error occurred - * - * @throws IOException if an I/O error occurred or if the file could - * not be written to disk due to the requested file format being - * unsupported by ImageIO - */ - public static void writeToFile(File file, - int width, - int height) throws IOException, GLException { - BufferedImage image = readToBufferedImage(width, height); - if (!ImageIO.write(image, TextureIO.getFileSuffix(file), file)) { - throw new IOException("Unsupported file format " + - TextureIO.getFileSuffix(file)); - } - } - - private static int glGetInteger(GL gl, int pname, int[] tmp) { - gl.glGetIntegerv(pname, tmp, 0); - return tmp[0]; - } - - static class PixelStorageModes { - int packAlignment; - int packRowLength; - int packSkipRows; - int packSkipPixels; - int packSwapBytes; - int[] tmp = new int[1]; - - void save(GL gl) { - packAlignment = glGetInteger(gl, GL.GL_PACK_ALIGNMENT, tmp); - packRowLength = glGetInteger(gl, GL.GL_PACK_ROW_LENGTH, tmp); - packSkipRows = glGetInteger(gl, GL.GL_PACK_SKIP_ROWS, tmp); - packSkipPixels = glGetInteger(gl, GL.GL_PACK_SKIP_PIXELS, tmp); - packSwapBytes = glGetInteger(gl, GL.GL_PACK_SWAP_BYTES, tmp); - - gl.glPixelStorei(GL.GL_PACK_ALIGNMENT, 1); - gl.glPixelStorei(GL.GL_PACK_ROW_LENGTH, 0); - gl.glPixelStorei(GL.GL_PACK_SKIP_ROWS, 0); - gl.glPixelStorei(GL.GL_PACK_SKIP_PIXELS, 0); - gl.glPixelStorei(GL.GL_PACK_SWAP_BYTES, 0); - } - - void restore(GL gl) { - gl.glPixelStorei(GL.GL_PACK_ALIGNMENT, packAlignment); - gl.glPixelStorei(GL.GL_PACK_ROW_LENGTH, packRowLength); - gl.glPixelStorei(GL.GL_PACK_SKIP_ROWS, packSkipRows); - gl.glPixelStorei(GL.GL_PACK_SKIP_PIXELS, packSkipPixels); - gl.glPixelStorei(GL.GL_PACK_SWAP_BYTES, packSwapBytes); - } - } -} |