Module: Mesa Branch: main Commit: d81cccbb77f78ae4c9df5f4e5bc7ec05bfb7ee9d URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=d81cccbb77f78ae4c9df5f4e5bc7ec05bfb7ee9d
Author: Samuel Pitoiset <[email protected]> Date: Wed Oct 19 15:45:21 2022 +0200 radv: add lowering support for load_provoking_vtx_in_prim_amd when dynamic Signed-off-by: Samuel Pitoiset <[email protected]> Reviewed-by: Rhys Perry <[email protected]> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/19168> --- src/amd/vulkan/radv_nir_lower_abi.c | 29 +++++++++++++++++------------ 1 file changed, 17 insertions(+), 12 deletions(-) diff --git a/src/amd/vulkan/radv_nir_lower_abi.c b/src/amd/vulkan/radv_nir_lower_abi.c index 9fb4f2c55cf..1f950d909c6 100644 --- a/src/amd/vulkan/radv_nir_lower_abi.c +++ b/src/amd/vulkan/radv_nir_lower_abi.c @@ -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:
