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Diffstat (limited to 'src/GeometryCompression/ObjectFileCompressor.java')
| -rw-r--r-- | src/GeometryCompression/ObjectFileCompressor.java | 247 |
1 files changed, 247 insertions, 0 deletions
diff --git a/src/GeometryCompression/ObjectFileCompressor.java b/src/GeometryCompression/ObjectFileCompressor.java new file mode 100644 index 0000000..d889ead --- /dev/null +++ b/src/GeometryCompression/ObjectFileCompressor.java @@ -0,0 +1,247 @@ +/* + * $RCSfile$ + * + * Copyright (c) 2004 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, licensed or + * intended for use in the design, construction, operation or + * maintenance of any nuclear facility. + * + * $Revision$ + * $Date$ + * $State$ + */ + +import com.sun.j3d.utils.compression.* ; +import com.sun.j3d.loaders.objectfile.ObjectFile ; +import com.sun.j3d.loaders.ParsingErrorException ; +import com.sun.j3d.loaders.IncorrectFormatException ; +import com.sun.j3d.loaders.Scene ; +import javax.media.j3d.* ; +import java.util.* ; +import java.net.* ; +import java.io.* ; + +/** + * This extension of ObjectFile provides the methods setQuantization() and + * compress() to compress Wavefront .obj files into the format described by + * appendix B of the Java 3D specification. + */ +public class ObjectFileCompressor extends ObjectFile { + private GeometryCompressor compressor = null ; + + public ObjectFileCompressor() { + super(STRIPIFY | TRIANGULATE) ; + compressor = new GeometryCompressor() ; + } + + public ObjectFileCompressor(int flags) { + super(flags | STRIPIFY | TRIANGULATE) ; + compressor = new GeometryCompressor() ; + } + + public ObjectFileCompressor(int flags, float radians) { + super(flags | STRIPIFY | TRIANGULATE, radians) ; + compressor = new GeometryCompressor() ; + } + + public void setFlags(int flags) { + super.setFlags(flags | STRIPIFY | TRIANGULATE) ; + } + + private int positionQuant = 10 ; + private int colorQuant = 8 ; + private int normalQuant = 3 ; + + /** + * Set the position, normal, and color quantization values for compression. + * @param positionQuant number of bits to quantize each position's X, Y, + * and Z components, ranging from 1 to 16 with a default of 10 + * @param colorQuant number of bits to quantize each color's R, G, B, and + * alpha components, ranging from 2 to 16 with a default of 8 + * @param normalQuant number of bits for quantizing each normal's U and V + * components, ranging from 0 to 6 with a default of 3 + */ + public void setQuantization(int positionQuant, + int colorQuant, + int normalQuant) { + + this.positionQuant = positionQuant ; + this.colorQuant = colorQuant ; + this.normalQuant = normalQuant ; + } + + /** + * Compress the specified .obj file into a CompressedGeometry node + * component. + * @param objFileName String object representing the path to a .obj file + * @return a CompressedGeometry node component + */ + public CompressedGeometry compress(String objFileName) { + return compressScene(getScene(objFileName)) ; + } + + /** + * Compress the specified .obj file and add it to the end of an open + * compressed geometry file. + * @param objFileName String object representing the path to a .obj file + * @param file a currently open CompressedGeometryFile object + * @exception IOException - if write fails + */ + public void compress(String objFileName, CompressedGeometryFile file) + throws IOException { + compressScene(getScene(objFileName), file) ; + } + + /** + * Compress the specified .obj file into a CompressedGeometry node + * component. + * @param reader an open .obj file + * @return a CompressedGeometry node component + */ + public CompressedGeometry compress(Reader reader) { + return compressScene(getScene(reader)) ; + } + + /** + * Compress the specified .obj file and add it to the end of an open + * compressed geometry file. + * @param reader an open .obj file + * @param file an open CompressedGeometryFile object + * @exception IOException - if write fails + */ + public void compress(Reader reader, CompressedGeometryFile file) + throws IOException { + compressScene(getScene(reader), file) ; + } + + /** + * Compress the specified .obj file into a CompressedGeometry node + * component. + * @param url Uniform Resource Locator for the .obj file + * @return a CompressedGeometry node component + */ + public CompressedGeometry compress(URL url) { + return compressScene(getScene(url)) ; + } + + /** + * Compress the specified .obj file and add it to the end of an open + * compressed geometry file. + * @param url Uniform Resource Locator for the .obj file + * @param file a currently open CompressedGeometryFile object + * @exception IOException - if write fails + */ + public void compress(URL url, CompressedGeometryFile file) + throws IOException { + compressScene(getScene(url), file) ; + } + + private CompressedGeometry compressScene(Scene scene) { + return compressor.compress(getStream(scene)) ; + } + + private void compressScene(Scene scene, CompressedGeometryFile file) + throws IOException { + compressor.compress(getStream(scene), file) ; + } + + private CompressionStream getStream(Scene scene) { + Hashtable objs = scene.getNamedObjects() ; + Shape3D shapes[] = new Shape3D[objs.size()] ; + + objs.values().toArray(shapes) ; + return new CompressionStream(positionQuant, colorQuant, normalQuant, + shapes) ; + } + + private Scene getScene(String objFileName) { + Scene scene = null ; + try { + scene = load(objFileName) ; + } + catch (FileNotFoundException e) { + System.err.println(e) ; + System.exit(1) ; + } + catch (ParsingErrorException e) { + System.err.println(e) ; + System.exit(1) ; + } + catch (IncorrectFormatException e) { + System.err.println(e) ; + System.exit(1) ; + } + return scene ; + } + + private Scene getScene(Reader reader) { + Scene scene = null ; + try { + scene = load(reader) ; + } + catch (FileNotFoundException e) { + System.err.println(e) ; + System.exit(1) ; + } + catch (ParsingErrorException e) { + System.err.println(e) ; + System.exit(1) ; + } + catch (IncorrectFormatException e) { + System.err.println(e) ; + System.exit(1) ; + } + return scene ; + } + + private Scene getScene(URL url) { + Scene scene = null ; + try { + scene = load(url) ; + } + catch (FileNotFoundException e) { + System.err.println(e) ; + System.exit(1) ; + } + catch (ParsingErrorException e) { + System.err.println(e) ; + System.exit(1) ; + } + catch (IncorrectFormatException e) { + System.err.println(e) ; + System.exit(1) ; + } + return scene ; + } +} |