[Piglit] [PATCH] add GL_ARB_sample_locations

[Ilia Mirkin]

On Mon, May 7, 2018 at 12:19 PM, Rhys Perry <pendingchaos02 at gmail.com> wrote:
> I have already tested it with NVIDIA's driver. It fails because
> gl_SamplePosition does not reflect the programmed sample locations due to a
> bug in the driver.
>
> It also fails because and 16x and 32x MSAA tests fail. I could not find
> anything wrong with the test itself, so I assumed it was a bug in the driver
> or because of some detail in how the MSAA modes are implemented.

Note that NVIDIA hw can't go above 8x MSAA, so for 16x and 32x they
use super-sampling.

  -ilia