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https://issues.apache.org/jira/browse/SANSELAN-14?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12653182#action_12653182
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Charles Matthew Chen commented on SANSELAN-14:
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Okay Kevin, this is definitely getting more clear.
My first thought is - are you sure you are reading the BMP completely from the
Inputstream? Inputstream.read(byte[], ...) won't necessarily read the entire
stream - you have to read until EOF, ie. when .read() returns < 1 byte read.
That would explain why the image can be read from a file, but not from the byte
array/stream. Or perhaps the same problem is occurring on the write side -
that a buffer isn't flushed or something. I assume either your code or
Sanselan is using a ByteArrayOutputStream and calling getBytes() after the
image is written to the stream.
This is easy to check - the sample image you've attached is 1666 bytes. Is the
byte array the same size? If so, I'm barking up the wrong tree.
> 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
> Attachments: SanselanTest.bmp
>
>
> 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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