[PATCH 0/3] MR11690: wined3d: Don't delay-clear backbuffers except to black.

[Stefan Dösinger (＠stefan)]

This was found by Stian Low in !10567.

Backbuffers are special: They can have a view of a different format even
though they are typed. In particular, they can be RGB and have sRGB
views or vice versa.

Like typeless textures we can still clear them to vec4(0.0/0.0/0.0/0.0)
as 0 is interpreted the same way in RGB and sRGB.

I did not run the full d3d testsuite locally as I am on an Nvidia GPU at the moment. Lets see what gitlab's bot finds

-- 
https://gitlab.winehq.org/wine/wine/-/merge_requests/11690