[Bug 41711] World of Warcraft - Legion renders into "sub-windows" incorrectly with DirectX/Mesa

[wine-bugs at winehq.org]

https://bugs.winehq.org/show_bug.cgi?id=41711

--- Comment #30 from Matteo Bruni <matteo.mystral at gmail.com> ---
(In reply to Matteo Bruni from comment #28)
> (In reply to Chris Rankin from comment #26)
> > For reference, Warcraft's OpenGL mode *still* crashes unless
> > MESA_GL_VERSION_OVERRIDE=3.3COMPAT or better. (It complains that it cannot
> > activate 3D acceleration).
> 
> That would be a separate bug. There isn't anything we can do if Warcraft
> requires an OpenGL 3.3 compatibility profile, Mesa just doesn't support that.

I meant to insert a "though" after "profile"... Anyway, OpenGL being broken for
you with Mesa + the version override is not surprising, with that you're just
hacking the driver to pass the WoW GL version check.

(In reply to Chris Rankin from comment #29)
> Except that I have a Radeon R7 360 that supports OpenGL *4.5* with the
> latest version of Mesa (which I am running). So "yes", I expect Wine still
> to work correctly when I *downgrade* to OpenGL 4.1.

It supports OpenGL 4.5 only with core profile. You're forcing compatibility,
which is a separate thing.

> 
> > FWIW it's probably ARB_viewport_array the relevant extension.
> 
> Which radeonsi supports. So what's your point?

Only in core profiles.

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