On Mon, 2 Jan 2012 16:34:23 +0000, Dave Airlie <airl...@gmail.com> wrote: > From: Dave Airlie <airl...@redhat.com> > > EXT_texture_integer isn't strictly equivalent to GL3, the L/I/A integer > formats are not required in GL3, and some drivers may not require them. > > I've no idea if we have any hw that requires it, just sending the patch along > after discussion on irc.
Given that Mesa just promotes L/I/A up to RGBA, I don't see a reason to have a distinction. Re: gpu_shader4 requirement in the text, I'd guess that that was because it was written pre-130, and the intent was "requires the bits of GLSL required to be able to actually use these shaders", which 130 has.
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