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      1 /*******************************************************************************
      2  * Copyright 2011 See AUTHORS file.
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *   http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  ******************************************************************************/
     16 
     17 package com.badlogic.gdx.tools.etc1;
     18 
     19 import java.io.File;
     20 import java.util.ArrayList;
     21 
     22 import com.badlogic.gdx.files.FileHandle;
     23 import com.badlogic.gdx.graphics.Pixmap;
     24 import com.badlogic.gdx.graphics.Pixmap.Format;
     25 import com.badlogic.gdx.graphics.glutils.ETC1;
     26 import com.badlogic.gdx.tools.FileProcessor;
     27 import com.badlogic.gdx.utils.GdxNativesLoader;
     28 
     29 public class ETC1Compressor {
     30 	static class ETC1FileProcessor extends FileProcessor {
     31 		ETC1FileProcessor () {
     32 			addInputSuffix(".png");
     33 			addInputSuffix(".jpg");
     34 			addInputSuffix(".jpeg");
     35 			addInputSuffix(".bmp");
     36 			setOutputSuffix(".etc1");
     37 		}
     38 
     39 		@Override
     40 		protected void processFile (Entry entry) throws Exception {
     41 			System.out.println("Processing " + entry.inputFile);
     42 			Pixmap pixmap = new Pixmap(new FileHandle(entry.inputFile));
     43 			if (pixmap.getFormat() != Format.RGB888 && pixmap.getFormat() != Format.RGB565) {
     44 				System.out.println("Converting from " + pixmap.getFormat() + " to RGB888!");
     45 				Pixmap tmp = new Pixmap(pixmap.getWidth(), pixmap.getHeight(), Format.RGB888);
     46 				tmp.drawPixmap(pixmap, 0, 0, 0, 0, pixmap.getWidth(), pixmap.getHeight());
     47 				pixmap.dispose();
     48 				pixmap = tmp;
     49 			}
     50 			ETC1.encodeImagePKM(pixmap).write(new FileHandle(entry.outputFile));
     51 			pixmap.dispose();
     52 		}
     53 
     54 		@Override
     55 		protected void processDir (Entry entryDir, ArrayList<Entry> value) throws Exception {
     56 			if (!entryDir.outputDir.exists()) {
     57 				if (!entryDir.outputDir.mkdirs())
     58 					throw new Exception("Couldn't create output directory '" + entryDir.outputDir + "'");
     59 			}
     60 		}
     61 	}
     62 
     63 	public static void process (String inputDirectory, String outputDirectory, boolean recursive, boolean flatten)
     64 		throws Exception {
     65 		GdxNativesLoader.load();
     66 		ETC1FileProcessor processor = new ETC1FileProcessor();
     67 		processor.setRecursive(recursive);
     68 		processor.setFlattenOutput(flatten);
     69 		processor.process(new File(inputDirectory), new File(outputDirectory));
     70 	}
     71 
     72 	public static void main (String[] args) throws Exception {
     73 		if (args.length != 2) {
     74 			System.out.println("ETC1Compressor <input-dir> <output-dir>");
     75 			System.exit(-1);
     76 		}
     77 		ETC1Compressor.process(args[0], args[1], true, false);
     78 	}
     79 }
     80