[PATCH] glamor: check max native ALU instructions

[David Airlie]

>                       ^^^^^
> It seems like this should be < 30.  That will allow the check to keep
> working if glamor ever grows support for OpenGL 2.0 (however unlikely
> that may be).
> 
> Do we know which GPUs cannot meet this limit and also do not have "true"
> integer support?  I wonder if we should go ahead and do the
> GL_MESA_shading_language_130 or GL_MESA_gpu_shader_int32 extensions that
> we had previously discussed, and remove support for desktop OpenGL
> drivers that cannot do those.
> 

So far its Intel before 965,

915/945/PNV/G31/G33/Q35 etc

I expect pineview to be the more annoying one.

I've tested on r500 and so far it seems fine with Xwayland.

Dave.