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Diffstat (limited to 'src/demos/texture/TextureConvert.java')
-rwxr-xr-x | src/demos/texture/TextureConvert.java | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/src/demos/texture/TextureConvert.java b/src/demos/texture/TextureConvert.java new file mode 100755 index 0000000..b0c6bbd --- /dev/null +++ b/src/demos/texture/TextureConvert.java @@ -0,0 +1,91 @@ +/* + * 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. + * + * Sun gratefully acknowledges that this software was originally authored + * and developed by Kenneth Bradley Russell and Christopher John Kline. + */ + +package demos.texture; + +import java.io.*; + +import javax.media.opengl.*; +import javax.media.opengl.glu.*; +import com.sun.opengl.utils.*; + +/** Demonstrates how the TextureIO subsystem may be used to convert + textures between multiple file formats, including texture + compression where available. */ + +public class TextureConvert { + public static void main(String[] args) throws IOException { + if (args.length != 2) { + System.out.println("Usage: java demos.texture.TextureConvert [input file] [output file]"); + System.out.println("Converts texture from input file format to output file format."); + System.out.println("If output file format is DDS, compresses texture with DXT3 compression"); + System.out.println("if available."); + System.exit(1); + } + + String inputFile = args[0]; + String outputFile = args[1]; + + // Make a pbuffer to get an offscreen context + if (!GLDrawableFactory.getFactory().canCreateGLPbuffer()) { + System.out.println("Pbuffer support not available (required to run this demo)"); + System.exit(1); + } + GLPbuffer pbuffer = GLDrawableFactory.getFactory().createGLPbuffer(new GLCapabilities(), null, 2, 2, null); + pbuffer.getContext().makeCurrent(); + GL gl = pbuffer.getGL(); + + boolean attemptCompression = false; + if (TextureIO.DDS.equals(TextureIO.getFileSuffix(outputFile))) { + if (gl.isExtensionAvailable("GL_EXT_texture_compression_s3tc") || + gl.isExtensionAvailable("GL_NV_texture_compression_vtc")) { + attemptCompression = true; + } + } + + TextureData inputData = TextureIO.newTextureData(new File(inputFile), false, null); + if (attemptCompression && !inputData.isDataCompressed()) { + inputData.setInternalFormat(GL.GL_COMPRESSED_RGBA_S3TC_DXT3_EXT); + } + Texture tex = TextureIO.newTexture(inputData); + + // Now read it back and save to the output file + TextureIO.write(tex, new File(outputFile)); + } +} |