[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

--- Comment #11 from Marc Weustink <marc at freepascal.org> 2010-09-13 18:25:44 CDT ---
Created an attachment (id=30739)
 --> (http://bugs.winehq.org/attachment.cgi?id=30739)
Sample source + exe showing problem with DIBsection

while then bitmap_dir example (attachment 30641) still shows an incompatibility
with windows (wine 1.3.2), it is not the source of the reversed Lazarus images.
In that example the source bitmap was based on CreateDIBitmap(), which is not
the type used for bitmaps in Lazarus.

The bitmap_dir_2 example is based on CreateDIBSection(). This shows the lazarus
problem. This example returns the wrong scanline for top to bottom bitmaps.

output on windows XP:
test 1: 0x00000001
test 2: 0x00000001
test 3: 0x00000003
test 4: 0x00000003

output on wine 1.3.2:
test 1: 0x00000001
test 2: 0x00000001
test 3: 0x00000001
test 4: 0x00000001

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