[Mesa-dev] [RFCv3 08/11] gallium/auxiliary: introduce nir_emulate

[Ilia Mirkin]

On Sun, Jan 31, 2016 at 3:16 PM, Rob Clark <robdclark at gmail.com> wrote:
> +   if (flags & TGSI_EMU_FORCE_PERSAMPLE_INTERP) {
> +      nir_foreach_variable(var, &shader->inputs) {
> +         var->data.sample = true;
> +      }
> +   }

How does Intel handle this? Presumably you'd want to do the same thing
here... this needs to happen whenever you're doing per-sample shading.
st/mesa has an option for that to be handled in the driver as well,
based on a rasterizer setting, to avoid needless recompiles.

  -ilia