001/*
002 * $RCSfile: PCXImageReaderSpi.java,v $
003 *
004 * 
005 * Copyright (c) 2007 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: 1.1 $
042 * $Date: 2007/09/05 00:21:08 $
043 * $State: Exp $
044 */
045package com.github.jaiimageio.impl.plugins.pcx;
046
047import java.io.IOException;
048import java.util.Locale;
049
050import javax.imageio.*;
051import javax.imageio.spi.*;
052import javax.imageio.stream.ImageInputStream;
053
054import com.github.jaiimageio.impl.common.PackageUtil;
055
056public class PCXImageReaderSpi extends ImageReaderSpi {
057
058    private static String [] writerSpiNames =
059        {"com.github.jaiimageio.impl.plugins.pcx.PCXImageWriterSpi"};
060    private static String[] formatNames = {"pcx", "PCX"};
061    private static String[] extensions = {"pcx"};
062    private static String[] mimeTypes = {
063        "image/pcx", "image/x-pcx", "image/x-windows-pcx", "image/x-pc-paintbrush"
064    };
065    private boolean registered = false;
066
067    public PCXImageReaderSpi() {
068        super(PackageUtil.getVendor(),
069              PackageUtil.getVersion(),
070              formatNames,
071              extensions,
072              mimeTypes,
073              "com.github.jaiimageio.impl.plugins.pcx.PCXImageReader",
074              STANDARD_INPUT_TYPE,
075              writerSpiNames,
076              false,
077              null, null, null, null,
078              true,
079              null,
080              null,
081              null, null);
082    }
083
084    public void onRegistration(ServiceRegistry registry, Class category) {
085        if (registered) {
086            return;
087        }
088        registered = true;
089    }
090
091    public String getDescription(Locale locale) {
092        String desc = PackageUtil.getSpecificationTitle() + 
093            " PCX Image Reader";  
094        return desc;
095    }
096
097    public boolean canDecodeInput(Object source) throws IOException {
098        if (!(source instanceof ImageInputStream)) {
099            return false;
100        }
101
102        ImageInputStream stream = (ImageInputStream)source;
103        stream.mark();
104        byte b = stream.readByte();
105        stream.reset();
106
107        return (b==0x0A);
108    }
109
110    public ImageReader createReaderInstance(Object extension)
111        throws IIOException {
112        return new PCXImageReader(this);
113    }
114}
115