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intel/compiler: handle gl_[Clip|Cull]Distance from mesh in fragment shaders

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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/14788>
This commit is contained in:
Marcin Ślusarz 2021-12-09 16:50:18 +01:00 • committed by Marge Bot
parent baa17865de
commit 1d9f47325b
1 changed files with 16 additions and 0 deletions
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16
src/intel/compiler/brw_fs.cpp
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@ -1807,8 +1807,24 @@ calculate_urb_setup(const struct intel_device_info *devinfo,
prog_data->num_per_primitive_inputs = urb_next;
}
const uint64_t clip_dist_bits = VARYING_BIT_CLIP_DIST0 |
VARYING_BIT_CLIP_DIST1;
uint64_t unique_fs_attrs = inputs_read & BRW_FS_VARYING_INPUT_MASK;
if (inputs_read & clip_dist_bits) {
assert(mue_map->per_vertex_header_size_dw > 8);
unique_fs_attrs &= ~clip_dist_bits;
}
/* In Mesh, CLIP_DIST slots are always at the beginning, because
* they come from MUE Vertex Header, not Per-Vertex Attributes.
*/
if (inputs_read & clip_dist_bits) {
prog_data->urb_setup[VARYING_SLOT_CLIP_DIST0] = urb_next++;
prog_data->urb_setup[VARYING_SLOT_CLIP_DIST1] = urb_next++;
}
/* Per-Vertex attributes are laid out ordered. Because we always link
* Mesh and Fragment shaders, the which slots are written and read by
* each of them will match. */