anv: merge tessellation's primitive mode in merge_tess_info()

SPIR-V tessellation shaders that were created from HLSL will have
the primitive generation domain set in tessellation control shader
(hull shader in HLSL) instead of the tessellation evaluation shader.

v2:
- Add assert (Kenneth)

Signed-off-by: Samuel Iglesias Gonsálvez <[email protected]>
Reviewed-by: Kenneth Graunke <[email protected]>

1 files changed, 4 insertions, 0 deletions

diff --git a/src/intel/vulkan/anv_pipeline.c b/src/intel/vulkan/anv_pipeline.c
index c43915e4c08..5494a6ee75e 100644
--- a/src/intel/vulkan/anv_pipeline.c
+++ b/src/intel/vulkan/anv_pipeline.c
@@ -587,6 +587,10 @@ merge_tess_info(struct shader_info *tes_info,
           tcs_info->tess.spacing == tes_info->tess.spacing);
    tes_info->tess.spacing |= tcs_info->tess.spacing;
 
+   assert(tcs_info->tess.primitive_mode == 0 ||
+          tes_info->tess.primitive_mode == 0 ||
+          tcs_info->tess.primitive_mode == tes_info->tess.primitive_mode);
+   tes_info->tess.primitive_mode |= tcs_info->tess.primitive_mode;
    tes_info->tess.ccw |= tcs_info->tess.ccw;
    tes_info->tess.point_mode |= tcs_info->tess.point_mode;
 }