[PATCH 0/1] MR9812: wined3d/gl: Only check GL context when accessing onscreen resources.

[Matteo Bruni (＠Mystral)]

Checking every time the GL context is acquired is a lot. We could do
something more fancy (e.g. checking in TestCooperativeLevel() and
such) but I don't think it's worth it.

This avoids frequent GetDC() calls, which introduce significant
locking overhead.

-- 
https://gitlab.winehq.org/wine/wine/-/merge_requests/9812