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From Jeremias Maerki <...@jeremias-maerki.ch>
Subject Re: FoP 0.94 bug
Date Thu, 10 Jan 2008 12:49:03 GMT
Nancy,

I'm merging the new image package into FOP Trunk later today. That
should improve the situation. However, I would still appreciate if you
could send me the PNG that didn't work so I can make sure it will work
with the new package. Thanks.

On 31.12.2007 12:58:33 nancy_b wrote:
> 
> Hi dear Jeremias! Any updates on this?
> 
> My best wishes,
> Nancy
> 
> 
> Jeremias Maerki-2 wrote:
> > 
> > There is a small percentage of PNG images that the standard ImageIO
> > codecs don't load properly. So, it's not directly a FOP problem.
> > 
> > The reason this appears in FOP 0.94 but not in 0.93 is that we switched
> > from our internal PNG codec to the one from ImageIO because it's faster.
> > Only after that change did we notice that the ImageIO codec from Sun has
> > bugs.
> > 
> > Work-around: To get the same behaviour as with FOP 0.93 you can change
> > src/java/org/apache/fop/image/ImageFactory.java:
> > 
> > Look for this:
> >         imt = new ImageMimeType("image/png");
> >         imageMimeTypes.put(imt.getMimeType(), imt);
> >         //Image I/O is faster and more memory-efficient than own codec for
> > PNG
> >         imt.addProvider(imageIoImage);
> >         imt.addProvider(pngImage);
> > 
> > Now just exchange the last two lines above and recompile FOP:
> >         imt.addProvider(pngImage);
> >         imt.addProvider(imageIoImage);
> > 
> > I'm currently refactoring the image package based on all the experience
> > of the past. Things like that shouldn't happen anymore as I'm planning
> > on writing a fallback mechanism so when an image cannot be loaded by one
> > codec, a different one is tried.
> > 
> > You could help me if you sent me this PNG image so I can test with it.
> > Thanks.
> > 
> > Jeremias Maerki
> > 
> > 
> > 
> > On 08.11.2007 13:08:27 nancy_b wrote:
> >> 
> >> Hi guys,
> >> 
> >> I upgraded to FOP 0.94, and now I can't compile a document that is
> >> compiled
> >> well with FOP 0.93. The following is the error message:
> >> 
> >> Nov 8, 2007 1:57:22 PM org.apache.fop.image.ImageIOImage loadBitmap
> >> SEVERE: Error while loading image: LUT has improper length!
> >> java.lang.IllegalArgumentException: LUT has improper length!
> >>         at javax.imageio.ImageTypeSpecifier$Indexed.<init>(Unknown
> >> Source)
> >>         at javax.imageio.ImageTypeSpecifier.createIndexed(Unknown Source)
> >>         at
> >> com.sun.imageio.plugins.png.PNGImageReader.getImageTypes(Unknown
> >> Source)
> >>         at com.sun.imageio.plugins.png.PNGImageReader.readImage(Unknown
> >> Source)
> >>         at com.sun.imageio.plugins.png.PNGImageReader.read(Unknown
> >> Source)
> >>         at
> >> org.apache.fop.image.ImageIOImage.loadBitmap(ImageIOImage.java:98)
> >>         at
> >> org.apache.fop.image.ImageIOImage.loadDimensions(ImageIOImage.java:68)
> >>         at
> >> org.apache.fop.image.AbstractFopImage.load(AbstractFopImage.java:161)
> >>         at
> >> org.apache.fop.fo.flow.ExternalGraphic.bind(ExternalGraphic.java:75)
> >>         at org.apache.fop.fo.FObj.processNode(FObj.java:125)
> >>         at
> >> org.apache.fop.fo.FOTreeBuilder$MainFOHandler.startElement(FOTreeBuilder.java:320)
> >>         at
> >> org.apache.fop.fo.FOTreeBuilder.startElement(FOTreeBuilder.java:185)
> >>         at
> >> org.apache.xalan.transformer.TransformerIdentityImpl.startElement(TransformerIdentityImpl.java:1072)
> >>         at
> >> org.apache.xerces.parsers.AbstractSAXParser.startElement(Unknown
> >> Source)
> >>         at
> >> org.apache.xerces.parsers.AbstractXMLDocumentParser.emptyElement(Unknown
> >> Source)
> >>         at
> >> org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanStartElement(Unknown
> >> Source)
> >>         at
> >> org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown
> >> Source)
> >>         at
> >> org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown
> >> Source)
> >>         at org.apache.xerces.parsers.XML11Configuration.parse(Unknown
> >> Source)
> >>         at org.apache.xerces.parsers.XML11Configuration.parse(Unknown
> >> Source)
> >>         at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
> >>         at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown
> >> Source)
> >>         at
> >> org.apache.xalan.transformer.TransformerIdentityImpl.transform(TransformerIdentityImpl.java:484)
> >>         at
> >> org.apache.fop.cli.InputHandler.transformTo(InputHandler.java:165)
> >>         at
> >> org.apache.fop.cli.InputHandler.renderTo(InputHandler.java:115)
> >>         at org.apache.fop.cli.Main.startFOP(Main.java:166)
> >>         at org.apache.fop.cli.Main.main(Main.java:197)
> >> Nov 8, 2007 1:57:22 PM org.apache.fop.fo.flow.ExternalGraphic bind
> >> SEVERE: Cannot read image dimensions: url(images/icon_plug_eth.png)
> >> Nov 8, 2007 1:57:22 PM org.apache.fop.image.ImageIOImage loadBitmap
> >> SEVERE: Error while loading image: null
> >> 
> >> Note that this image is a small icon with dimensions 1*1 cm. Please,
> >> advise!
> >> 
> >> Regards,
> >> Nancy
> >> -- 
> >> View this message in context:
> >> http://www.nabble.com/FoP-0.94-bug-tf4770550.html#a13645816
> >> Sent from the FOP - Users mailing list archive at Nabble.com.
> > 
> > 
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> > 
> > 
> > 
> 
> -- 
> View this message in context: http://www.nabble.com/FoP-0.94-bug-tp13645816p14556846.html
> Sent from the FOP - Users mailing list archive at Nabble.com.
> 
> 
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Jeremias Maerki


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