[Mesa-dev] [Bug 78773] Doom3 BFG doesnt start

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=78773

--- Comment #7 from Tapani Pälli <lemody at gmail.com> ---
(In reply to comment #6)
> Wasn't Doom 3 one of those older games that had a fixed-size buffer for
> storing the GL_EXTENSIONS string?  If the extension string was too long the
> buffer would overflow and the game would crash/misbehave.
> 
> Jan, you might try setting the MESA_EXTENSION_MAX_YEAR env var to something
> like 2005 so Mesa doesn't advertise extensions newer than that.

I've verified that original Doom3 works fine with current Mesa. Doom3 here is
'rbdoom3', this is a custom one that uses >= OpenGL 3.2:

https://github.com/RobertBeckebans/RBDOOM-3-BFG

I haven't tried yet but my wild guess is that it uses core profile but still
the old deprecated extensions query (not the new one).

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