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radv: add lowering support for load_provoking_vtx_in_prim_amd when dynamic

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Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/19168>
This commit is contained in:
Samuel Pitoiset 2022-10-19 15:45:21 +02:00 • committed by Marge Bot
parent 8d8aa05fd2
commit d81cccbb77
1 changed files with 17 additions and 12 deletions
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29
src/amd/vulkan/radv_nir_lower_abi.c
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@ -334,20 +334,25 @@ lower_abi_instr(nir_builder *b, nir_instr *instr, void *state)
}
break;
case nir_intrinsic_load_provoking_vtx_in_prim_amd: {
unsigned provoking_vertex = 0;
if (s->pl_key->vs.provoking_vtx_last) {
if (stage == MESA_SHADER_VERTEX) {
provoking_vertex = radv_get_num_vertices_per_prim(s->pl_key) - 1;
} else if (stage == MESA_SHADER_GEOMETRY) {
provoking_vertex = b->shader->info.gs.vertices_in - 1;
} else {
/* TES won't use this intrinsic, because it can get primitive id directly
* instead of using this intrinsic to pass primitive id by LDS.
*/
unreachable("load_provoking_vtx_in_prim_amd is only supported in VS and GS");
if (s->pl_key->dynamic_provoking_vtx_mode) {
replacement = ac_nir_load_arg(b, &s->args->ac, s->args->ngg_provoking_vtx);
} else {
unsigned provoking_vertex = 0;
if (s->pl_key->vs.provoking_vtx_last) {
if (stage == MESA_SHADER_VERTEX) {
provoking_vertex = radv_get_num_vertices_per_prim(s->pl_key) - 1;
} else if (stage == MESA_SHADER_GEOMETRY) {
provoking_vertex = b->shader->info.gs.vertices_in - 1;
} else {
/* TES won't use this intrinsic, because it can get primitive id directly
* instead of using this intrinsic to pass primitive id by LDS.
*/
unreachable("load_provoking_vtx_in_prim_amd is only supported in VS and GS");
}
}
replacement = nir_imm_int(b, provoking_vertex);
}
replacement = nir_imm_int(b, provoking_vertex);
break;
}
case nir_intrinsic_atomic_add_gs_emit_prim_count_amd: