https://bugs.winehq.org/show_bug.cgi?id=38480
--- Comment #14 from Matteo Bruni matteo.mystral@gmail.com --- (In reply to Alex Henrie from comment #8)
Actually, there is another solution: RuneScape could try to use glCopyTexSubImage3D from OpenGL 4.0 and then fall back to glCopyTexSubImage3DEXT only if OpenGL 4.0 or later is not available.
For the records, glCopyTexSubImage3D is actually from OpenGL 1.2 so hardly a tall requirement for using the correct function.
So, the game isn't particularly well behaved, the Nvidia drivers aren't particularly well behaved and Wine is now particularly picky. I'm not convinced that the regression commit is wrong (it's been somewhat useful for bug 39563 and bug 38264 at least) but I'm not especially attached to it. If someone wants to send a revert I'm not going to veto it.