[Bug 421] Implement a DIB engine

http://bugs.winehq.org/show_bug.cgi?id=421





--- Comment #370 from dufoli <olivier.duff(a)gmail.com>  2010-05-26 07:38:13 ---
Ok, I have take a look at your screen shots.
The 1pixel error must come from center/radius calculation but I simply do :
LONG a = (right - left) / 2.0;
LONG b = (bottom - top) / 2.0;
LONG cx = (right + left) / 2.0;
LONG cy = (bottom + top) / 2.0;

So maybe, I have to use a cast somewhere because right, left, bottom and top
are integer...

About shape, the strange thing is that I found the shape of my ellipse better
than on windows...

I use the breshensam algo.

Maybe they use an other algo:
- Jerry van Aken 
- Danny Cohen
- Dilip Da silva
- L. B. Smith
...

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