On Jul 28, 2016 7:37 PM, "Anuj Phogat" <anuj.pho...@gmail.com> wrote:
>
> Fixes the vulkan cts regression in test dEQP-VK.api.info.device.properties
>
> Cc: Mark Janes <mark.a.ja...@intel.com>
> Cc: Jason Ekstrand <ja...@jlekstrand.net>
> Signed-off-by: Anuj Phogat <anuj.pho...@gmail.com>
> ---
>  src/intel/vulkan/anv_device.c | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/src/intel/vulkan/anv_device.c b/src/intel/vulkan/anv_device.c
> index c2c5153..9fd9683 100644
> --- a/src/intel/vulkan/anv_device.c
> +++ b/src/intel/vulkan/anv_device.c
> @@ -524,9 +524,9 @@ void anv_GetPhysicalDeviceProperties(
>        .maxTexelOffset                           = 7,
>        .minTexelGatherOffset                     = -8,
>        .maxTexelGatherOffset                     = 7,
> -      .minInterpolationOffset                   = 0, /* FIXME */
> -      .maxInterpolationOffset                   = 0, /* FIXME */
> -      .subPixelInterpolationOffsetBits          = 0, /* FIXME */
> +      .minInterpolationOffset                   = -0.5,
> +      .maxInterpolationOffset                   = 0.5,
> +      .subPixelInterpolationOffsetBits          = 4,

I looked and neither gen7_pipeline.c nor gen8_pipeline.c set the subpixel
precision so we get a default of enum value 0 which is 8 bits.  We should
probably be explicitly setting it to something.  I think 4 is probably fine
but we should be seeing it.

As a side note, I think we could probably combine 3DSTATE_SF and
3DSTATE_RASTER setup between gen7 and gen8 (and move it to
genX_pipeline_until.h).  We'd probably have to do some #define trick like
we did for 3DSTATE_SBE and 3DSTATE_SBE_SWIZ because the two packets are
combined on gen7 and split on gen8.

>        .maxFramebufferWidth                      = (1 << 14),
>        .maxFramebufferHeight                     = (1 << 14),
>        .maxFramebufferLayers                     = (1 << 10),
> --
> 2.5.5
>
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