[Mesa-dev] [PATCH] i965/gen8: fix cull distance emission for tessellation shaders.

[Kristian Høgsberg]

Reviewed-by: Kristian Høgsberg <krh at bitplanet.net>

On Mon, Jun 6, 2016 at 5:29 PM, Dave Airlie <airlied at gmail.com> wrote:
> From: Dave Airlie <airlied at redhat.com>
>
> This fixes some cases of:
> GL45-CTS.cull_distance.functional
> on Skylake.
>
> Cc: "12.0" <mesa-stable at lists.freedesktop.org>
> Signed-off-by: Dave Airlie <airlied at redhat.com>
> ---
>  src/mesa/drivers/dri/i965/gen8_ds_state.c | 8 +++++---
>  1 file changed, 5 insertions(+), 3 deletions(-)
>
> diff --git a/src/mesa/drivers/dri/i965/gen8_ds_state.c b/src/mesa/drivers/dri/i965/gen8_ds_state.c
> index 95582ac..0219d07 100644
> --- a/src/mesa/drivers/dri/i965/gen8_ds_state.c
> +++ b/src/mesa/drivers/dri/i965/gen8_ds_state.c
> @@ -69,9 +69,11 @@ gen8_upload_ds_state(struct brw_context *brw)
>                   GEN7_DS_SIMD8_DISPATCH_ENABLE : 0) |
>                  (tes_prog_data->domain == BRW_TESS_DOMAIN_TRI ?
>                   GEN7_DS_COMPUTE_W_COORDINATE_ENABLE : 0));
> -      OUT_BATCH(SET_FIELD(vue_prog_data->cull_distance_mask |
> -                          ctx->Transform.ClipPlanesEnabled,
> -                          GEN8_DS_USER_CLIP_DISTANCE));
> +      OUT_BATCH(SET_FIELD(ctx->Transform.ClipPlanesEnabled,
> +                          GEN8_DS_USER_CLIP_DISTANCE) |
> +                SET_FIELD(vue_prog_data->cull_distance_mask,
> +                          GEN8_DS_USER_CULL_DISTANCE));
> +
>
>        if (brw->gen >= 9) {
>           OUT_BATCH(0);
> --
> 2.7.4
>
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