[Bug 24278] Transparent PNG are shown inverted by applications compiled with Lazarus

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=24278

Marc Weustink <marc at freepascal.org> changed:

           What    |Removed                     |Added
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                 CC|                            |marc at freepascal.org

--- Comment #6 from Marc Weustink <marc at freepascal.org> 2010-09-08 18:32:23 CDT ---
The pasted description is what I remembered when I implemented this.
I've written a small example showing the source of the problem.
On the windows GetDIBits ignores the sign of Info.biHeight while WINE doesnt.

Output on Windows (XP):
pix 1: 0x00000001
pix 2: 0x00000001
pix 3: 0x00000003
pix 4: 0x00000003

Output on WINE (wine-1.2.0-2.fc13.i686):
pix 1: 0x00000001
pix 2: 0x00000003
pix 3: 0x00000001
pix 4: 0x00000003

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