[Bug 22366] Call of Duty 4 is black in-game

http://bugs.winehq.org/show_bug.cgi?id=22366

--- Comment #11 from Roderick Colenbrander   2010-04-17 05:54:10 ---
There are a lot of different codepaths in wined3d. You do test certain apps and
run the wine d3d tests (and also extend them) but you don't always cover all
situations.

The d3d test coverage should be improved to prevent more regressions. Writing
tests can be boring though. When I rewrite a piece I try to add some tests. In
this specific case I wrote one for the ColorFill behavior and didn't look too
much at the Clear behavior (I expected the current test to be enough there).
Especially for trickier areas, I'll try to write more tests when I touch such
an area.