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https://issues.apache.org/jira/browse/SANSELAN-14?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12653163#action_12653163
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Kevin Theisen commented on SANSELAN-14:
---------------------------------------
Hi Charles,
Thanks for the quick response. The error only occurs when I'm interacting with
the system clipboard, not when I'm saving and loading actual files. All other
image formats that are written/read by Sanselan seem to work perfectly using
identical code with the system clipboard, and other programs can load the BMPs
that Sanselan produces, it just can't read its own output from an InputStream.
The code I use is simply a call to Sanselan.getBufferedImage(InputStream)
function using an InputStream from the system clipboard:
final BufferedImage image = Sanselan.getBufferedImage((InputStream)
contents.getTransferData(bmpFlavor));
The InputStream is generated with a single call to the
Sanselan.writeImageToBytes() function, followed by writing the bytes to an
OutputStream. "bi" is the BufferedImage.
final ByteArrayOutputStream out = new ByteArrayOutputStream();
try {
out.write(Sanselan.writeImageToBytes(bi,
ImageFormat.IMAGE_FORMAT_BMP, null));
out.close();
final ByteArrayInputStream stream = new ByteArrayInputStream(
out.toByteArray());
return stream;
}
I have tested this on Windows, Mac and Linux with the same resulting error.
Sanselan PNG, GIF, PPM and TIFF work without error with identical code (except
for the ImageFormat constant of course).
Sorry that I can't provide a concrete example.
-Kevin
> Two issues with BMPs.
> ---------------------
>
> Key: SANSELAN-14
> URL: https://issues.apache.org/jira/browse/SANSELAN-14
> Project: Sanselan
> Issue Type: Bug
> Affects Versions: 0.94-incubator
> Environment: Windows, Mac, Linux, Sanselan 0.94
> Reporter: Kevin Theisen
> Priority: Minor
>
> Hi all,
> Two things. The first is minor. There is a System.out.println() that should
> be commented out in the BMP code. I see a lot of lines like this:
> "bits_per_sample: 8"
> The second is an error. When I create a BMP with Sanselan, everything works,
> and I can load the output into OpenOffice without problem from the System
> Clipboard. However, when trying to recreate the BufferedImage with Sanselan
> from the same exact output Sanselan created, I get the following error:
> org.apache.sanselan.ImageReadException: BMP: Strange BitmapDataOffset: 266
> (expected: 1078, PaletteLength: 1024, header_size: 54)
> at
> org.apache.sanselan.formats.bmp.BmpImageParser.readImageContents(BmpImageParser.java:317)
> at
> org.apache.sanselan.formats.bmp.BmpImageParser.getBufferedImage(BmpImageParser.java:553)
> at org.apache.sanselan.Sanselan.getBufferedImage(Sanselan.java:1157)
> at org.apache.sanselan.Sanselan.getBufferedImage(Sanselan.java:1056)
> at org.apache.sanselan.Sanselan.getBufferedImage(Sanselan.java:1029)
> Let me know if you have any ideas about that.
> Thanks,
> Kevin
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