This will be necessary to select the right value for flat inputs in
fragment shaders when fragment shader barycentrics are in use.
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/34445>
Mesh shaders have per vertex block in URB pretty much identical to the
VUE format. Let's just reuse that concept to do all of our layout in
the payload attribute registers. This will ensure that we have
consistent VUE layout between Mesh & non-Mesh pipelines.
We need a new way of laying out the VUE though as we have to
accomodate a HW constraint of maximum (per-primitive + per-vertex) of
32 varying. This means we cannot have 2 locations in the payload for
things like PrimitiveID which can come from either the per-primitive
or the per-vertex block. The new layout places the PrimitiveID at the
end of the per-vertex attributes and shrinks the delivery dynamically
if the mesh stage is active. The shader is compiled with a
MOV_INDIRECT to read the PrimitiveID from the right location in the
attributes.
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Ivan Briano <ivan.briano@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/34109>
Moving it to intel_shader_enums.h
The plan is to make it visible to OpenCL shaders.
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/32329>
