Revert "opengl32: Return a NULL pointer for functions requiring unsupported or disabled extensions.".

Henri Verbeet hverbeet at
Thu Nov 26 23:59:02 CST 2015

On 27 November 2015 at 06:21, Alexandre Julliard <julliard at> wrote:
>> Essentially, I think the number of affected users doesn't outweigh
>> doing the correct thing in this case.
> Correct me if I'm wrong, but isn't this simply a matter of returning
> glCopyTexSubImage3D if glCopyTexSubImage3DEXT is missing?  That seems a
> better solution than relying on quirks of the Nvidia driver.
I think so, yeah.

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