https://bugs.winehq.org/show_bug.cgi?id=43847
--- Comment #3 from Matteo Bruni matteo.mystral@gmail.com --- (In reply to BieHDC from comment #2)
Since both of those games have other remaining graphical issues, i cant tell if this one exactly produces a visual difference.
That's my point. It seems more useful to me to have a bug concerning some specific graphical issue and work from there rather than picking some fixme from the Wine log and claim that it is an actual issue for the game.
Now WRT this bug, if some developer (e.g. Józef, most likely :P) thinks that having a bug for the sample mask is useful then, of course, he can just reopen it. But they knew that already.
Other masks are already implemented. This one is maybe not so often used which is why it has not been added yet?
I think it's just that it's new to d3d10+ and nobody has yet had the need / time to implement it in wined3d.