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anv: include ClipDistance array in mesh shader per-vertex output

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Signed-off-by: Marcin Ślusarz <marcin.slusarz@intel.com>
Reviewed-by: Caio Oliveira <caio.oliveira@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/13662>
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Marcin Ślusarz 2021-12-09 16:50:24 +01:00 • committed by Marge Bot
parent c95b4ac2eb
commit 27c32fd14b
1 changed files with 16 additions and 0 deletions
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16
src/intel/vulkan/genX_pipeline.c
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@ -509,6 +509,22 @@ emit_3dstate_sbe(struct anv_graphics_pipeline *pipeline)
sbe_mesh.PerVertexURBEntryOutputReadOffset = mue->per_vertex_header_size_dw / 8;
sbe_mesh.PerVertexURBEntryOutputReadLength = DIV_ROUND_UP(mue->per_vertex_data_size_dw, 8);
/* Clip distance array is passed in the per-vertex header so that
* it can be consumed by the HW. If user wants to read it in the FS,
* adjust the offset and length to cover it. Conveniently it is at
* the end of the per-vertex header, right before per-vertex
* attributes.
*
* Note that FS attribute reading must be aware that the clip
* distances have fixed position.
*/
if (mue->per_vertex_header_size_dw > 8 &&
(wm_prog_data->urb_setup[VARYING_SLOT_CLIP_DIST0] >= 0 ||
wm_prog_data->urb_setup[VARYING_SLOT_CLIP_DIST1] >= 0)) {
sbe_mesh.PerVertexURBEntryOutputReadOffset -= 1;
sbe_mesh.PerVertexURBEntryOutputReadLength += 1;
}
assert(mue->per_primitive_header_size_dw % 8 == 0);
sbe_mesh.PerPrimitiveURBEntryOutputReadOffset = mue->per_primitive_header_size_dw / 8;
sbe_mesh.PerPrimitiveURBEntryOutputReadLength = DIV_ROUND_UP(mue->per_primitive_data_size_dw, 8);