/*
* #%L
* Fork of JAI Image I/O Tools.
* %%
* Copyright (C) 2008 - 2014 Open Microscopy Environment:
* - Board of Regents of the University of Wisconsin-Madison
* - Glencoe Software, Inc.
* - University of Dundee
* %%
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions 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.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* The views and conclusions contained in the software and documentation are
* those of the authors and should not be interpreted as representing official
* policies, either expressed or implied, of any organization.
* #L%
*/
/*
* $RCSfile: J2KImageReaderSpi.java,v $
*
*
* 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 MIDROSYSTEMS, 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.
*
* $Revision: 1.2 $
* $Date: 2006/03/31 19:43:39 $
* $State: Exp $
*/
package com.sun.media.imageioimpl.plugins.jpeg2000;
import java.util.Locale;
import javax.imageio.spi.ImageReaderSpi;
import javax.imageio.stream.ImageInputStream;
import javax.imageio.spi.IIORegistry;
import javax.imageio.spi.ServiceRegistry;
import java.io.IOException;
import javax.imageio.ImageReader;
import javax.imageio.IIOException;
import com.sun.media.imageioimpl.common.PackageUtil;
import org.mangosdk.spi.ProviderFor;
@ProviderFor(ImageReaderSpi.class)
public class J2KImageReaderSpi extends ImageReaderSpi {
private static String [] writerSpiNames =
{"com.sun.media.imageioimpl.plugins.jpeg2000.J2KImageWriterSpi"};
private static String[] formatNames =
{"jpeg 2000", "JPEG 2000", "jpeg2000", "JPEG2000"};
private static String[] extensions =
{"jp2"}; // Should add jpx or jpm
private static String[] mimeTypes = {"image/jp2", "image/jpeg2000"};
private boolean registered = false;
public J2KImageReaderSpi() {
super(PackageUtil.getVendor(),
PackageUtil.getVersion(),
formatNames,
extensions,
mimeTypes,
"com.sun.media.imageioimpl.plugins.jpeg2000.J2KImageReader",
STANDARD_INPUT_TYPE,
writerSpiNames,
false,
null, null,
null, null,
true,
"com_sun_media_imageio_plugins_jpeg2000_image_1.0",
"com.sun.media.imageioimpl.plugins.jpeg2000.J2KMetadataFormat",
null, null);
}
public void onRegistration(ServiceRegistry registry,
Class category) {
if (registered) {
return;
}
registered = true;
// Set pairwise ordering to give codecLib reader precedence.
Class codecLibReaderSPIClass = null;
try {
codecLibReaderSPIClass =
Class.forName("com.sun.media.imageioimpl.plugins.jpeg2000.J2KImageReaderCodecLibSpi");
} catch(Throwable t) {
// Ignore it.
}
if(codecLibReaderSPIClass != null) {
Object codecLibReaderSPI =
registry.getServiceProviderByClass(codecLibReaderSPIClass);
if(codecLibReaderSPI != null) {
registry.setOrdering(category, codecLibReaderSPI, this);
}
}
}
public String getDescription(Locale locale) {
String desc = PackageUtil.getSpecificationTitle() +
" JPEG 2000 Image Reader";
return desc;
}
public boolean canDecodeInput(Object source) throws IOException {
if (!(source instanceof ImageInputStream)) {
return false;
}
ImageInputStream stream = (ImageInputStream)source;
//fix of 4938421
stream.mark();
int marker = (stream.read() << 8) | stream.read();
if (marker == 0xFF4F) {
stream.reset();
return true;
}
stream.reset();
stream.mark();
byte[] b = new byte[12];
stream.readFully(b);
stream.reset();
//Verify the signature box
// The length of the signature box is 12
if (b[0] !=0 || b[1]!=0 || b[2] != 0 || b[3] != 12)
return false;
// The signature box type is "jP "
if ((b[4] & 0xff) != 0x6A || (b[5] & 0xFF) != 0x50 ||
(b[6] & 0xFF) !=0x20 || (b[7] & 0xFF) != 0x20)
return false;
// The signture content is 0x0D0A870A
if ((b[8] & 0xFF) != 0x0D || (b[9] & 0xFF) != 0x0A ||
(b[10] & 0xFF) != 0x87 || (b[11] &0xFF) != 0x0A)
return false;
return true;
}
public ImageReader createReaderInstance(Object extension)
throws IIOException {
return new J2KImageReader(this);
}
}