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From "Myroslav Golub (JIRA)" <j...@apache.org>
Subject [jira] [Created] (IMAGING-162) BMP files with negative bitmap height are not suported
Date Mon, 02 Feb 2015 16:36:34 GMT
Myroslav Golub created IMAGING-162:
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             Summary: BMP files with negative bitmap height are not suported
                 Key: IMAGING-162
                 URL: https://issues.apache.org/jira/browse/IMAGING-162
             Project: Commons Imaging
          Issue Type: Bug
          Components: Format: BMP
    Affects Versions: 1.0
            Reporter: Myroslav Golub


The BMP format allows for negative values of the height field in the header. This means that
the image lines are stored top-down, not bottom-up as usual (i. e. the first pixel in the
pixel array would be in the top left corner of the image, not in the bottom left as usual).
However, when a negative-height bitmap is passed, the BmpImageParser attempts to create an
array of negative length, and a NegativeArraySizeException ensues.



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