[Bug 44120] Steam Big Picture mode fails to display content, it shows a black screen (d3d10, d3d11 functions not implemented)

https://bugs.winehq.org/show_bug.cgi?id=44120

--- Comment #4 from Robert Walker  ---
(In reply to Aaron Franke from comment #3)
> I apologize
> for not testing thoroughly enough, but hopefully the logs and their reports
> of unimplemented functions helps the Wine devs fix Steam Big Picture!

If you want to file some useful bug reports... Then listen to Józef (he's one
of the main Wine D3D Developers). Focus on the missing D3D10 calls (the most
frequent calls/fixmes are probably the first issue to tackle). They are
probably the main reason Steam Big Picture Mode displays a blank screen.

See: http://store.steampowered.com/bigpicture

Base requirement is only DX10.