[Mesa-dev] [PATCH 3/8] radeonsi: implement set_min_samples

[Ilia Mirkin]

On Wed, May 7, 2014 at 10:00 AM, Marek Olšák <maraeo at gmail.com> wrote:
> +static void si_set_min_samples(struct pipe_context *ctx, unsigned min_samples)
> +{
> +       struct si_context *sctx = (struct si_context *)ctx;
> +
> +       if (sctx->ps_iter_samples == min_samples)
> +               return;
> +
> +       sctx->ps_iter_samples = min_samples;
> +
> +       if (sctx->framebuffer.nr_samples > 1)
> +               sctx->msaa_config.dirty = true;
>  }

I don't know your HW, but keep in mind that there's nothing preventing
one from using gl_SamplePosition/etc without a MS framebuffer. With
the piglit tests, that's passing '1' or '0' as the arguments for the
number of samples.

  -ilia