001: /*
002: * $RCSfile: J2KImageWriterCodecLibSpi.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: */
045: package com.sun.media.imageioimpl.plugins.jpeg2000;
046:
047: import java.awt.image.DataBuffer;
048: import java.awt.image.SampleModel;
049:
050: import javax.imageio.spi.ImageWriterSpi;
051: import javax.imageio.spi.ServiceRegistry;
052: import javax.imageio.spi.IIORegistry;
053: import javax.imageio.ImageWriter;
054: import javax.imageio.ImageTypeSpecifier;
055: import javax.imageio.IIOException;
056:
057: import java.awt.image.ColorModel;
058: import java.awt.image.IndexColorModel;
059: import java.util.Locale;
060:
061: import com.sun.media.imageioimpl.common.PackageUtil;
062:
063: public class J2KImageWriterCodecLibSpi extends ImageWriterSpi {
064: private static String[] readerSpiNames = { "com.sun.media.imageioimpl.plugins.jpeg2000.J2KImageReaderCodecLibSpi" };
065: private static String[] formatNames = { "jpeg 2000", "JPEG 2000",
066: "jpeg2000", "JPEG2000" };
067: private static String[] extensions = { "jp2" }; // Should add jpx or jpm
068: private static String[] mimeTypes = { "image/jp2", "image/jpeg2000" };
069:
070: private boolean registered = false;
071:
072: public J2KImageWriterCodecLibSpi() {
073: super (
074: PackageUtil.getVendor(),
075: PackageUtil.getVersion(),
076: formatNames,
077: extensions,
078: mimeTypes,
079: "com.sun.media.imageioimpl.plugins.jpeg2000.J2KImageWriterCodecLib",
080: STANDARD_OUTPUT_TYPE,
081: readerSpiNames,
082: false,
083: null,
084: null,
085: null,
086: null,
087: true,
088: "com_sun_media_imageio_plugins_jpeg2000_image_1.0",
089: "com.sun.media.imageioimpl.plugins.jpeg2000.J2KMetadataFormat",
090: null, null);
091: }
092:
093: public String getDescription(Locale locale) {
094: String desc = PackageUtil.getSpecificationTitle()
095: + " natively-accelerated JPEG 2000 Image Writer";
096: return desc;
097: }
098:
099: public void onRegistration(ServiceRegistry registry, Class category) {
100: if (registered) {
101: return;
102: }
103:
104: registered = true;
105:
106: // Branch based on codecLib availability.
107: if (!PackageUtil.isCodecLibAvailable()) {
108: // Deregister provider.
109: registry.deregisterServiceProvider(this );
110: } else {
111: // Set pairwise ordering to give codecLib writer precedence.
112: Class javaWriterSPIClass = null;
113: try {
114: javaWriterSPIClass = Class
115: .forName("com.sun.media.imageioimpl.plugins.jpeg2000.J2KImageWriterSpi");
116: } catch (Throwable t) {
117: // Ignore it.
118: }
119:
120: if (javaWriterSPIClass != null) {
121: Object javaWriterSPI = registry
122: .getServiceProviderByClass(javaWriterSPIClass);
123: if (javaWriterSPI != null) {
124: registry.setOrdering(category, this , javaWriterSPI);
125: }
126: }
127: }
128: }
129:
130: public boolean canEncodeImage(ImageTypeSpecifier type) {
131: SampleModel sm = type.getSampleModel();
132: if (sm.getNumBands() > 16384)
133: return false;
134: if (sm.getDataType() < DataBuffer.TYPE_BYTE
135: || sm.getDataType() > DataBuffer.TYPE_INT)
136: return false;
137: return true;
138: }
139:
140: public ImageWriter createWriterInstance(Object extension)
141: throws IIOException {
142: return new J2KImageWriterCodecLib(this);
143: }
144: }
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