[Bug 38480] RuneScape crashes when switching to OpenGL renderer (glCopyTexSubImage3DEXT blacklisted by extension filtering)

[wine-bugs at winehq.org]

https://bugs.winehq.org/show_bug.cgi?id=38480

Alex Henrie <alexhenrie24 at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|STAGED                      |RESOLVED
                 CC|                            |alexhenrie24 at gmail.com
         Resolution|---                         |NOTOURBUG

--- Comment #7 from Alex Henrie <alexhenrie24 at gmail.com> ---
I'm closing this bug. The reply from Nvidia [1] was:

"For the particular case of GL_EXT_copy_texture, the extension cannot be listed
as supported because the driver doesn't implement all of the functions defined
by that extension."

If Wine called a function that is not listed at supported for the current GL
context, the whole program could crash. Wine has no way to know which
unsupported functions will work and which will not. We could hack in tables to
determine compatibility based on the combination of driver, video card, Xorg
version, GL profile, and other factors, but that kind of patch would never be
accepted into Wine (although it might be acceptable in Wine Staging).

The only real solution to this is to get Nvidia to finish implementing
GL_EXT_copy_texture and add it to their driver's supported extensions list.

[1]
https://devtalk.nvidia.com/default/topic/829402/linux/some-gl-extensions-aren-t-advertised-by-the-driver/

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