[PATCH] glamor: check max native ALU instructions

[Ian Romanick]

On 01/28/2015 01:00 PM, Olivier Fourdan wrote:
> On 28/01/15 21:17, Ian Romanick wrote:
>>
>> 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.
> 
> The issue has been reported on i945GM and G31/G33 at least, but I dunno
> if those have true integer support.

They do not.  I only know of a small set of non-GL 3.0 GPUs that can:
Intel i965 through Iron Lake and vc4.  I'm not sure where R400 and R500
(or older NVIDIA chips supported by nouveau) lie in the spectrum.

> Cheers,
> Olivier