I keep trying to make the TIFFRenderer work with CCITT T.6 bilevel
compression (CCITT Group 4 facsimile compression). But can't make it work.
When the outputStream flushes I have this exception:
Caused by: java.util.NoSuchElementException
at javax.imageio.spi.FilterIterator.next(ServiceRegistry.java:808)
at javax.imageio.ImageIO$ImageWriterIterator.next(ImageIO.java:820)
at javax.imageio.ImageIO$ImageWriterIterator.next(ImageIO.java:805)
at
org.apache.xmlgraphics.image.writer.imageio.ImageIOImageWriter.writeImage(ImageIOImageWriter.java:73)
at
org.apache.fop.render.bitmap.TIFFRenderer.stopRenderer(TIFFRenderer.java:196)
at
org.apache.fop.area.RenderPagesModel.endDocument(RenderPagesModel.java:240)
at
org.apache.fop.area.AreaTreeHandler.endDocument(AreaTreeHandler.java:422)
at org.apache.fop.fo.FOTreeBuilder.endDocument(FOTreeBuilder.java:170)
at
org.apache.xml.serializer.ToXMLSAXHandler.endDocument(ToXMLSAXHandler.java:182)
at
org.apache.xalan.transformer.TransformerImpl.transformNode(TransformerImpl.java:1287)
... 43 more
I think the problem I have is that the IIORegistry has no service
providers for image/tiff mime types. And I don't know how to register
one. Neither I know where to find one.
Does somebody know how to make IIORegistry provide an encoder for
tiff images??
thanks a lot in advance!
this is the TIFFRenderer.java I have at present:
/*
* Copyright 1999-2006 The Apache Software Foundation.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/* $Id: TIFFRenderer.java 391332 2006-04-04 15:15:23Z jeremias $ */
package org.apache.fop.render.bitmap;
// Code originaly contributed by Oleg Tkachenko of Multiconn
International Ltd
// ([EMAIL PROTECTED]).
import java.awt.image.BufferedImage;
import java.awt.image.DataBuffer;
import java.awt.image.PixelInterleavedSampleModel;
import java.awt.image.RenderedImage;
import java.awt.image.SampleModel;
import java.awt.image.SinglePixelPackedSampleModel;
import java.io.IOException;
import java.io.OutputStream;
import java.util.Iterator;
import org.apache.avalon.framework.configuration.Configuration;
import org.apache.avalon.framework.configuration.ConfigurationException;
import org.apache.commons.logging.Log;
import org.apache.fop.apps.FOPException;
import org.apache.fop.apps.MimeConstants;
import org.apache.fop.render.java2d.Java2DRenderer;
import org.apache.xmlgraphics.image.GraphicsUtil;
import org.apache.xmlgraphics.image.codec.tiff.TIFFEncodeParam;
import org.apache.xmlgraphics.image.rendered.FormatRed;
import org.apache.xmlgraphics.image.writer.ImageWriter;
import org.apache.xmlgraphics.image.writer.ImageWriterParams;
import org.apache.xmlgraphics.image.writer.imageio.ImageIOTIFFImageWriter;
/**
* <p>
* This class represents renderer to TIFF (Tagged Image File Format)
format. It
* is one of the most popular and flexible of the current public domain
raster
* file formats, which was is primarily designed for raster data
interchange.
* Supported compression types are:
* <ul>
* <li>Raw noncompressed data</li>
* <li>Byte-oriented run-length encoding "PackBits" compression.</li>
* <li>Modified Huffman Compression (CCITT Group 3 1D facsimile
compression)</li>
* <li>CCITT T.4 bilevel compression (CCITT Group 3 2D facsimile
compression)</li>
* <li>CCITT T.6 bilevel compression (CCITT Group 4 facsimile
compression)</li>
* <li>JPEG-in-TIFF compression</li>
* <li>DEFLATE lossless compression (also known as "Zip-in-TIFF")</li>
* <li>LZW compression</li>
* TODO
* <p>
* This class actually does not render itself, instead it extends
* <code>org.apache.fop.render.java2D.Java2DRenderer</code> and just encode
* rendering results into TIFF format using Batik's image codec
*/
public class TIFFRenderer extends Java2DRenderer {
/** The MIME type for tiff-Rendering */
public static final String MIME_TYPE = MimeConstants.MIME_TIFF;
/** */
// private TIFFEncodeParam renderParams;
private ImageWriterParams iwParams= null;
private OutputStream outputStream;
/** @see org.apache.fop.render.AbstractRenderer */
public String getMimeType() {
return MIME_TYPE;
}
/** Creates TIFF renderer. */
public TIFFRenderer() {
// renderParams = new TIFFEncodeParam();
//Default to packbits compression which is widely supported
//
renderParams.setCompression(TIFFEncodeParam.COMPRESSION_PACKBITS);
iwParams= new ImageWriterParams();
}
private int bufferedImageType= 0;
/**
* Configure the TIFF renderer. Get the configuration to be used for
* compression
* @see
org.apache.avalon.framework.configuration.Configurable#configure(Configuration)
*/
public void configure(Configuration cfg) throws
ConfigurationException {
String name = cfg.getChild("compression").getValue();
if(name.equalsIgnoreCase("COMPRESSION_NONE"))
{
//
renderParams.setCompression(TIFFEncodeParam.COMPRESSION_NONE);
bufferedImageType= BufferedImage.TYPE_INT_ARGB;
}
else if ( name.equalsIgnoreCase("COMPRESSION_JPEG_TTN2") )
{
//
renderParams.setCompression(TIFFEncodeParam.COMPRESSION_JPEG_TTN2);
bufferedImageType= BufferedImage.TYPE_INT_ARGB;
}
else if ( name.equalsIgnoreCase("COMPRESSION_PACKBITS") )
{
//
renderParams.setCompression(TIFFEncodeParam.COMPRESSION_PACKBITS);
bufferedImageType= BufferedImage.TYPE_INT_ARGB;
}
else if ( name.equalsIgnoreCase("COMPRESSION_DEFLATE") )
{
//
renderParams.setCompression(TIFFEncodeParam.COMPRESSION_DEFLATE);
bufferedImageType= BufferedImage.TYPE_INT_ARGB;
}
else if ( name.equalsIgnoreCase("COMPRESSION_GROUP3_1D") )
{
//
renderParams.setCompression(TIFFEncodeParam.COMPRESSION_GROUP3_1D);
bufferedImageType= BufferedImage.TYPE_BYTE_BINARY;
}
else if (name.equalsIgnoreCase("COMPRESSION_GROUP3_2D") )
{
//
renderParams.setCompression(TIFFEncodeParam.COMPRESSION_GROUP3_2D);
bufferedImageType= BufferedImage.TYPE_BYTE_BINARY;
}
else if (name.equalsIgnoreCase("COMPRESSION_GROUP4") )
{
//
renderParams.setCompression(TIFFEncodeParam.COMPRESSION_GROUP4);
bufferedImageType= BufferedImage.TYPE_BYTE_BINARY;
}
else
{
log.info("TIFF compression not supported: " + name);
return;
}
iwParams.setCompressionMethod(name);
log.info("TIFF compression set to " + name);
}
/** @see
org.apache.fop.render.Renderer#startRenderer(java.io.OutputStream) */
public void startRenderer(OutputStream outputStream) throws
IOException {
this.outputStream = outputStream;
super.startRenderer(outputStream);
}
/** @see org.apache.fop.render.Renderer#stopRenderer() */
public void stopRenderer() throws IOException {
super.stopRenderer();
log.debug("Starting Tiff encoding ...");
// //Set target resolution
// float pixSzMM = userAgent.getTargetPixelUnitToMillimeter();
// // num Pixs in 100 Meters
// int numPix = (int)(((1000 * 100) / pixSzMM) + 0.5);
// int denom = 100 * 100; // Centimeters per 100 Meters;
// long [] rational = {numPix, denom};
// TIFFField [] fields = {
// new TIFFField(TIFFImageDecoder.TIFF_RESOLUTION_UNIT,
// TIFFField.TIFF_SHORT, 1,
// new char[] {(char)3}),
// new TIFFField(TIFFImageDecoder.TIFF_X_RESOLUTION,
// TIFFField.TIFF_RATIONAL, 1,
// new long[][] {rational}),
// new TIFFField(TIFFImageDecoder.TIFF_Y_RESOLUTION,
// TIFFField.TIFF_RATIONAL, 1,
// new long[][] {rational})
// };
// renderParams.setExtraFields(fields);
int dpi= Math.round(userAgent.getTargetResolution());
iwParams.setResolution(dpi);
// Creates encoder
// TIFFImageEncoder enc = new TIFFImageEncoder(outputStream,
renderParams);
ImageWriter iw= new ImageIOTIFFImageWriter();
// Creates lazy iterator over generated page images
Iterator pageImagesItr = new
LazyPageImagesIterator(getNumberOfPages(), log);
// The first image to be passed to enc
RenderedImage first = (RenderedImage) pageImagesItr.next();
// // The other images are set to the renderParams
// renderParams.setExtraImages(pageImagesItr);
// Start encoding
// enc.encode(first);
iw.writeImage(first, outputStream, iwParams);
// Cleaning
outputStream.flush();
clearViewportList();
log.debug("Tiff encoding done.");
}
protected BufferedImage getBufferedImage(int bitmapWidth, int
bitmapHeight)
{
return new BufferedImage(
bitmapWidth, bitmapHeight, bufferedImageType);
}
/** Private inner class to lazy page rendering. */
private class LazyPageImagesIterator implements Iterator {
/** logging instance */
private Log log;
private int count;
private int current = 0;
/**
* Main constructor
* @param c number of pages to iterate over
* @param log the logger to use (this is a hack so this compiles
under JDK 1.3)
*/
public LazyPageImagesIterator(int c, Log log) {
count = c;
this.log = log;
}
public boolean hasNext() {
return current < count;
}
public Object next() {
log.debug("[" + (current + 1) + "]");
// Renders current page as image
BufferedImage pageImage = null;
try {
pageImage = getPageImage(current++);
} catch (FOPException e) {
log.error(e);
return null;
}
// switch (renderParams.getCompression()) {
switch (TIFFEncodeParam.COMPRESSION_GROUP4) {
// These types of compression require a monochrome image
// these compression types are not supported by the Batik codec
case TIFFEncodeParam.COMPRESSION_GROUP3_1D:
case TIFFEncodeParam.COMPRESSION_GROUP3_2D:
case TIFFEncodeParam.COMPRESSION_GROUP4:
BufferedImage faxImage = new BufferedImage(
pageImage.getWidth(), pageImage.getHeight(),
BufferedImage.TYPE_BYTE_BINARY);
faxImage.getGraphics().drawImage(pageImage, 0, 0, null);
return faxImage;
// return pageImage;
default:
//Decorate the image with a packed sample model for
encoding by the codec
SinglePixelPackedSampleModel sppsm;
sppsm =
(SinglePixelPackedSampleModel)pageImage.getSampleModel();
int bands = sppsm.getNumBands();
int[] off = new int[bands];
int w = pageImage.getWidth();
int h = pageImage.getHeight();
for (int i = 0; i < bands; i++) {
off[i] = i;
}
SampleModel sm = new PixelInterleavedSampleModel(
DataBuffer.TYPE_BYTE, w, h, bands, w * bands, off);
RenderedImage rimg = new
FormatRed(GraphicsUtil.wrap(pageImage), sm);
return rimg;
}
}
public void remove() {
throw new UnsupportedOperationException(
"Method 'remove' is not supported.");
}
}
}
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