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intel/compiler: Load draw_id from XP0 in Task/Mesh shaders

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Signed-off-by: Marcin Ślusarz <marcin.slusarz@intel.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/13661>
This commit is contained in:
Marcin Ślusarz
2021-07-16 15:03:20 +02:00
committed by Marge Bot
parent b717872e08
commit bd2c11dfa8
3 changed files with 29 additions and 1 deletions
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src/intel/compiler/brw_mesh.cpp
+11
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@@ -162,6 +162,9 @@ brw_compile_task(const struct brw_compiler *compiler,
prog_data->base.local_size[1] = nir->info.workgroup_size[1];
prog_data->base.local_size[2] = nir->info.workgroup_size[2];
prog_data->uses_drawid =
BITSET_TEST(nir->info.system_values_read, SYSTEM_VALUE_DRAW_ID);
brw_compute_tue_map(nir, &prog_data->map);
const unsigned required_dispatch_width =
@@ -533,6 +536,9 @@ brw_compile_mesh(const struct brw_compiler *compiler,
/* TODO(mesh): Use other index formats (that are more compact) for optimization. */
prog_data->index_format = BRW_INDEX_FORMAT_U32;
prog_data->uses_drawid =
BITSET_TEST(nir->info.system_values_read, SYSTEM_VALUE_DRAW_ID);
brw_compute_mue_map(nir, &prog_data->map);
const unsigned required_dispatch_width =
@@ -980,6 +986,11 @@ fs_visitor::nir_emit_task_mesh_intrinsic(const fs_builder &bld,
bld.MOV(dest, retype(brw_vec1_grf(payload.num_regs - 1, 0), dest.type));
break;
case nir_intrinsic_load_draw_id:
/* DrawID comes from Extended Parameter 0 (XP0). */
bld.MOV(dest, brw_vec1_grf(0, 3));
break;
case nir_intrinsic_load_local_invocation_index:
case nir_intrinsic_load_local_invocation_id:
/* Local_ID.X is given by the HW in the shader payload. */