ECWTest.java

/*
 *    ImageI/O-Ext - OpenSource Java Image translation Library
 *    http://www.geo-solutions.it/
 *    http://java.net/projects/imageio-ext/
 *    (C) 2007 - 2009, GeoSolutions
 *
 *    This library is free software; you can redistribute it and/or
 *    modify it under the terms of the GNU Lesser General Public
 *    License as published by the Free Software Foundation;
 *    either version 3 of the License, or (at your option) any later version.
 *
 *    This library is distributed in the hope that it will be useful,
 *    but WITHOUT ANY WARRANTY; without even the implied warranty of
 *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *    Lesser General Public License for more details.
 */
package it.geosolutions.imageio.plugins.ecw;

import it.geosolutions.imageio.gdalframework.AbstractGDALTest;
import it.geosolutions.imageio.gdalframework.GDALUtilities;
import it.geosolutions.imageio.gdalframework.Viewer;
import it.geosolutions.imageio.imageioimpl.EnhancedImageReadParam;
import it.geosolutions.imageio.utilities.ImageIOUtilities;
import it.geosolutions.resources.TestData;

import java.awt.Rectangle;
import java.awt.RenderingHints;
import java.awt.image.RenderedImage;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;

import javax.imageio.ImageReadParam;
import javax.imageio.ImageReader;
import javax.media.jai.ImageLayout;
import javax.media.jai.JAI;
import javax.media.jai.ParameterBlockJAI;
import javax.media.jai.RenderedOp;

import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;

/**
 * Testing reading capabilities for {@link ECWImageReader}.
 * 
 * @author Simone Giannecchini, GeoSolutions.
 * @author Daniele Romagnoli, GeoSolutions.
 */
public class ECWTest extends AbstractGDALTest {
    
    private final static boolean isECWAvailable;
    
    static{
        if (isGDALAvailable) {  
           isECWAvailable = GDALUtilities.isDriverAvailable("ECW");
        } else {
            isECWAvailable = false;
        }
        if (!isECWAvailable){
            AbstractGDALTest.missingDriverMessage("ECW");
        }
    }
    
    private final static String ECWPSkipTest = "ecwp://Set a valid link";

    private final static String ECWP = ECWPSkipTest; // Change with a valid
                                                        // ecwp
    /**
     * Test reading of a RGB image
     * 
     * @throws FileNotFoundException
     * @throws IOException
     */
    @Test
    public void imageRead() throws FileNotFoundException, IOException {
    	if(!isECWAvailable)
    		return;
        final ParameterBlockJAI pbjImageRead;
        final EnhancedImageReadParam irp = new EnhancedImageReadParam();
        final String fileName = "sample.ecw";
        final File file = TestData.file(this, fileName);

        irp.setSourceSubsampling(2, 2, 0, 0);
        pbjImageRead = new ParameterBlockJAI("ImageRead");
        pbjImageRead.setParameter("Input", file);
        pbjImageRead.setParameter("readParam", irp);
        final ImageLayout l = new ImageLayout();
        l.setTileGridXOffset(0).setTileGridYOffset(0).setTileHeight(512).setTileWidth(512);
        RenderedOp image = JAI.create("ImageRead", pbjImageRead,
                new RenderingHints(JAI.KEY_IMAGE_LAYOUT, l));
        if (TestData.isInteractiveTest())
        	Viewer.visualizeAllInformation(image, fileName);
        else
            image.getTiles();
        Assert.assertEquals(200, image.getWidth());
        Assert.assertEquals(100, image.getHeight());
        ImageIOUtilities.disposeImage(image);
    }

    @Test
    public void manualRead() throws FileNotFoundException, IOException {
    	if(!isECWAvailable)
    		return;
        final ECWImageReaderSpi spi = new ECWImageReaderSpi();
        final ECWImageReader mReader = new ECWImageReader(spi);
        final String fileName = "sample.ecw";
        final File file = TestData.file(this, fileName);
        final ImageReadParam param = new ImageReadParam();
        final int imageIndex = 0;

        mReader.setInput(file);
        final RenderedImage image = mReader.readAsRenderedImage(imageIndex, param);
        if (TestData.isInteractiveTest())
        	ImageIOUtilities.visualize(image, fileName);
        Assert.assertEquals(400, image.getWidth());
        Assert.assertEquals(200, image.getHeight());
        mReader.dispose();
    }

    @Test
    public void manualReadDestination() throws FileNotFoundException, IOException {
    	if(!isECWAvailable)
    		return;
        final ECWImageReaderSpi spi = new ECWImageReaderSpi();
        final ECWImageReader mReader = new ECWImageReader(spi);
        final String fileName = "sample.ecw";
        final File file = TestData.file(this, fileName);
        final EnhancedImageReadParam param = new EnhancedImageReadParam();
        param.setDestinationRegion(new Rectangle(0,0,200,100));
        final int imageIndex = 0;

        mReader.setInput(file);
        final RenderedImage image = mReader.readAsRenderedImage(imageIndex, param);
        if (TestData.isInteractiveTest())
        	ImageIOUtilities.visualize(image, fileName);
        Assert.assertEquals(200, image.getWidth());
        Assert.assertEquals(100, image.getHeight());
        mReader.dispose();
    }
    
    @Test
    public void ecwpRead() throws FileNotFoundException, IOException {
    	if(!isECWAvailable)
    		return;
        if (ECWP.equalsIgnoreCase(ECWPSkipTest))
            return;

        final ImageReader mReader = new ECWImageReaderSpi().createReaderInstance();
        final ECWPImageInputStream ecwp = new ECWPImageInputStream(ECWP);
        final ImageReadParam param = new ImageReadParam();
        param.setSourceSubsampling(1, 1, 0, 0);
        param.setSourceRegion(new Rectangle(1000, 1000, 2000, 2000));
        final int imageIndex = 0;

        mReader.setInput(ecwp);
        final RenderedImage image = mReader.readAsRenderedImage(imageIndex, param);
        if (TestData.isInteractiveTest())
            Viewer.visualizeAllInformation(image, ECWP);
        mReader.dispose();
    }
    
    @Test
    public void emptyTest(){
        
    }
    
    @Before
    public void setUp() throws Exception {
        super.setUp();
        // general settings
        JAI.getDefaultInstance().getTileScheduler().setParallelism(10);
        JAI.getDefaultInstance().getTileScheduler().setPriority(4);
        JAI.getDefaultInstance().getTileScheduler().setPrefetchPriority(2);
        JAI.getDefaultInstance().getTileScheduler().setPrefetchParallelism(5);
        JAI.getDefaultInstance().getTileCache().setMemoryCapacity(
                128 * 1024 * 1024);
        JAI.getDefaultInstance().getTileCache().setMemoryThreshold(1.0f);
    }



}