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radv: lower NIR intrinsics for NGG streamout

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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/19317>
This commit is contained in:
Samuel Pitoiset
2022-10-26 12:15:44 +00:00
committed by Marge Bot
parent 3bafe6e0bc
commit d653ca4c52
1 changed files with 36 additions and 0 deletions
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36
src/amd/vulkan/radv_nir_lower_abi.c
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@@ -387,6 +387,42 @@ lower_abi_instr(nir_builder *b, nir_instr *instr, void *state)
case nir_intrinsic_load_lds_ngg_scratch_base_amd:
replacement = nir_imm_int(b, s->info->ngg_info.scratch_lds_base);
break;
case nir_intrinsic_load_num_vertices_per_primitive_amd: {
unsigned num_vertices;
if (stage == MESA_SHADER_VERTEX) {
num_vertices = radv_get_num_vertices_per_prim(s->pl_key);
} else if (stage == MESA_SHADER_TESS_EVAL) {
if (s->info->tes.point_mode) {
num_vertices = 1;
} else if (s->info->tes._primitive_mode == TESS_PRIMITIVE_ISOLINES) {
num_vertices = 2;
} else {
num_vertices = 3;
}
} else {
assert(stage == MESA_SHADER_GEOMETRY);
switch (s->info->gs.output_prim) {
case SHADER_PRIM_POINTS:
num_vertices = 1;
break;
case SHADER_PRIM_LINE_STRIP:
num_vertices = 2;
break;
case SHADER_PRIM_TRIANGLE_STRIP:
num_vertices = 3;
break;
default:
unreachable("invalid GS output primitive");
break;
}
}
replacement = nir_imm_int(b, num_vertices);
break;
}
case nir_intrinsic_load_ordered_id_amd:
replacement = nir_ubfe_imm(b, ac_nir_load_arg(b, &s->args->ac, s->args->ac.gs_tg_info), 0, 12);
break;
default:
progress = false;
break;