001/*
002 * $RCSfile: J2KImageWriterSpi.java,v $
003 *
004 * 
005 * Copyright (c) 2005 Sun Microsystems, Inc. All  Rights Reserved.
006 * 
007 * Redistribution and use in source and binary forms, with or without
008 * modification, are permitted provided that the following conditions
009 * are met: 
010 * 
011 * - Redistribution of source code must retain the above copyright 
012 *   notice, this  list of conditions and the following disclaimer.
013 * 
014 * - Redistribution in binary form must reproduce the above copyright
015 *   notice, this list of conditions and the following disclaimer in 
016 *   the documentation and/or other materials provided with the
017 *   distribution.
018 * 
019 * Neither the name of Sun Microsystems, Inc. or the names of 
020 * contributors may be used to endorse or promote products derived 
021 * from this software without specific prior written permission.
022 * 
023 * This software is provided "AS IS," without a warranty of any 
024 * kind. ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND 
025 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, 
026 * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY
027 * EXCLUDED. SUN MIDROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL 
028 * NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF 
029 * USING, MODIFYING OR DISTRIBUTING THIS SOFTWARE OR ITS
030 * DERIVATIVES. IN NO EVENT WILL SUN OR ITS LICENSORS BE LIABLE FOR 
031 * ANY LOST REVENUE, PROFIT OR DATA, OR FOR DIRECT, INDIRECT, SPECIAL,
032 * CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER CAUSED AND
033 * REGARDLESS OF THE THEORY OF LIABILITY, ARISING OUT OF THE USE OF OR
034 * INABILITY TO USE THIS SOFTWARE, EVEN IF SUN HAS BEEN ADVISED OF THE
035 * POSSIBILITY OF SUCH DAMAGES. 
036 * 
037 * You acknowledge that this software is not designed or intended for 
038 * use in the design, construction, operation or maintenance of any 
039 * nuclear facility. 
040 *
041 * $Revision: 1.2 $
042 * $Date: 2006/03/31 19:43:39 $
043 * $State: Exp $
044 */
045package com.github.jaiimageio.jpeg2000.impl;
046
047import java.awt.image.DataBuffer;
048import java.awt.image.SampleModel;
049import java.util.Locale;
050
051import javax.imageio.IIOException;
052import javax.imageio.ImageTypeSpecifier;
053import javax.imageio.ImageWriter;
054import javax.imageio.spi.ImageWriterSpi;
055import javax.imageio.spi.ServiceRegistry;
056
057import com.github.jaiimageio.impl.common.PackageUtil;
058
059public class J2KImageWriterSpi extends ImageWriterSpi {
060    private static String [] readerSpiNames =
061        {"com.github.jaiimageio.jpeg2000.impl.J2KImageReaderSpi"};
062    private static String[] formatNames =
063        {"jpeg 2000", "JPEG 2000", "jpeg2000", "JPEG2000"};
064    private static String[] extensions =
065        {"jp2"}; // Should add jpx or jpm
066    private static String[] mimeTypes = {"image/jp2", "image/jpeg2000"};
067    private boolean registered = false;
068
069    public J2KImageWriterSpi() {
070        super(PackageUtil.getVendor(),
071              PackageUtil.getVersion(),
072              formatNames,
073              extensions,
074              mimeTypes,
075              "com.github.jaiimageio.jpeg2000.impl.J2KImageWriter",
076              STANDARD_OUTPUT_TYPE,
077              readerSpiNames,
078              false,
079              null, null,
080              null, null,
081              true,
082              "com_sun_media_imageio_plugins_jpeg2000_image_1.0",
083              "com.github.jaiimageio.jpeg2000.impl.J2KMetadataFormat",
084              null, null);
085    }
086
087    public String getDescription(Locale locale) {
088        String desc = PackageUtil.getSpecificationTitle() + 
089            " JPEG 2000 Image Writer";
090        return desc;
091    }
092
093    public void onRegistration(ServiceRegistry registry,
094                               Class category) {
095        if (registered) {
096            return;
097        }
098        
099        registered = true;
100
101        // Set pairwise ordering to give codecLib writer precedence.
102        Class codecLibWriterSPIClass = null;
103        try {
104            codecLibWriterSPIClass =
105                Class.forName("com.github.jaiimageio.jpeg2000.impl.J2KImageWriterCodecLibSpi");
106        } catch(Throwable t) {
107            // Ignore it.
108        }
109
110        if(codecLibWriterSPIClass != null) {
111            Object codecLibWriterSPI =
112                registry.getServiceProviderByClass(codecLibWriterSPIClass);
113            if(codecLibWriterSPI != null) {
114                registry.setOrdering(category, codecLibWriterSPI, this);
115            }
116        }
117    }
118
119    public boolean canEncodeImage(ImageTypeSpecifier type) {
120        SampleModel sm = type.getSampleModel();
121        if (sm.getNumBands() > 16384)
122            return false;
123        if (sm.getDataType() < DataBuffer.TYPE_BYTE ||
124            sm.getDataType() > DataBuffer.TYPE_INT)
125            return false;
126        return true;
127    }
128
129    public ImageWriter createWriterInstance(Object extension)
130        throws IIOException {
131        return new J2KImageWriter(this);
132    }
133}