[Bug 421] Implement a DIB engine
wine-bugs at winehq.org
wine-bugs at winehq.org
Tue May 25 17:16:18 CDT 2010
http://bugs.winehq.org/show_bug.cgi?id=421
--- Comment #367 from el <elton at schiert.net> 2010-05-25 17:16:16 ---
(In reply to comment #362)
> Created an attachment (id=28265)
--> (http://bugs.winehq.org/attachment.cgi?id=28265) [details]
> dib graphic improove
Still no dice with the unfilled circles. It seems that all filled circles are
one pixel too high and also the shape is not exactly the same. Here are
comparison screenshots:
Windows: http://img517.imageshack.us/img517/2371/1win.png
Patch: http://img295.imageshack.us/img295/6084/improvtor1.png
This leads me to a more general question that I hope someone who understands
GDI/DIB can answer: Consider the case where a GDI function is used to draw a
circle on Windows. It will produce a certain rasterization of the circle. Will
this rasterization be exactly the same on every Windows PC? I would think so,
since it is called device independent bitmap, but I really have no idea. If
this is the case then Wine should probably strive to produce an exact copy of
the algorithms used on Windows. I'm asking this because none of the current
primitive implementations produces the same shapes that I get in Windows.
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