[Libreoffice-bugs] [Bug 116439] New: OS/2 multi-image bitmap does not display correctly

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=116439

            Bug ID: 116439
           Summary: OS/2 multi-image bitmap does not display correctly
           Product: LibreOffice
           Version: 3.3.0 release
          Hardware: All
                OS: All
            Status: UNCONFIRMED
          Severity: normal
          Priority: medium
         Component: graphics stack
          Assignee: libreoffice-bugs at lists.freedesktop.org
          Reporter: chris.sherlock79 at gmail.com

Description:
An OS/2 bitmap that uses a BitmapArray (multiple bitmaps) does not display
correctly.

Steps to Reproduce:
1. Open Draw
2. Click on Insert -> Image
3. Choose "marbles.bmp"

Actual Results:  
marbles.bmp does not display correctly. 

Expected Results:
marbles.bmp should show the best image, but instead it looks like a "cropped
image", I suspect because it has picked the wrong image. 


Reproducible: Always


User Profile Reset: No



Additional Info:
marbles.bmp is the standard test image used for BA type OS/2 bitmaps. Currently
we detect that the magic number of the bitmap is "BA" (0x4142), but then we
don't seem to actually go through each bitmap image to find the correct one.

Further info on OS/2 bitmap formats can be found here:

http://www.fileformat.info/format/os2bmp/egff.htm

The spot where we read in and handle the BA magic number is here:

https://opengrok.libreoffice.org/xref/core/vcl/source/gdi/dibtools.cxx#1061


User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_3) AppleWebKit/537.36
(KHTML, like Gecko) Chrome/64.0.3282.186 Safari/537.36

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