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authorKenneth Graunke <[email protected]>2018-11-09 00:41:36 -0800
committerKenneth Graunke <[email protected]>2019-02-21 10:26:09 -0800
commit2186d831857ccf01cc90d789c1e339a3ec379e23 (patch)
treec5225765d54b71359753e6ab64583a64ef44f486
parentd3e8ff143dd5c629329cb9b9e0875b365be394b3 (diff)
iris: fill out params array with built-ins, like clip planes
-rw-r--r--src/gallium/drivers/iris/iris_program.c71
1 files changed, 71 insertions, 0 deletions
diff --git a/src/gallium/drivers/iris/iris_program.c b/src/gallium/drivers/iris/iris_program.c
index e3faeabb3ee..731a3d7a347 100644
--- a/src/gallium/drivers/iris/iris_program.c
+++ b/src/gallium/drivers/iris/iris_program.c
@@ -420,6 +420,77 @@ iris_setup_uniforms(const struct brw_compiler *compiler,
prog_data->nr_params = 0;
prog_data->param = rzalloc_array(mem_ctx, uint32_t, 1);
+ nir_function_impl *impl = nir_shader_get_entrypoint(nir);
+
+ nir_builder b;
+ nir_builder_init(&b, impl);
+
+ b.cursor = nir_before_block(nir_start_block(impl));
+ nir_ssa_def *temp_ubo_name = nir_ssa_undef(&b, 1, 32);
+
+ nir_foreach_block(block, impl) {
+ nir_foreach_instr_safe(instr, block) {
+ if (instr->type != nir_instr_type_intrinsic)
+ continue;
+
+ nir_intrinsic_instr *intrin = nir_instr_as_intrinsic(instr);
+
+ unsigned param_idx = prog_data->nr_params;
+ uint32_t *param = NULL;
+
+ switch (intrin->intrinsic) {
+ case nir_intrinsic_load_user_clip_plane: {
+ unsigned ucp = nir_intrinsic_ucp_id(intrin);
+ param = brw_stage_prog_data_add_params(prog_data, 4);
+ for (int i = 0; i < 4; i++) {
+ param[i] =
+ IRIS_PARAM(BUILTIN, BRW_PARAM_BUILTIN_CLIP_PLANE(ucp, i));
+ }
+ break;
+ }
+ default:
+ continue;
+ }
+
+ b.cursor = nir_before_instr(instr);
+
+ unsigned comps = nir_intrinsic_dest_components(intrin);
+ nir_ssa_def *offset = nir_imm_int(&b, param_idx * sizeof(uint32_t));
+
+ nir_intrinsic_instr *load =
+ nir_intrinsic_instr_create(nir, nir_intrinsic_load_ubo);
+ load->num_components = comps;
+ load->src[0] = nir_src_for_ssa(temp_ubo_name);
+ load->src[1] = nir_src_for_ssa(offset);
+ nir_ssa_dest_init(&load->instr, &load->dest, comps, 32, NULL);
+ nir_builder_instr_insert(&b, &load->instr);
+ nir_ssa_def_rewrite_uses(&intrin->dest.ssa,
+ nir_src_for_ssa(&load->dest.ssa));
+ nir_instr_remove(instr);
+ }
+ }
+
+ nir_foreach_block(block, impl) {
+ nir_foreach_instr_safe(instr, block) {
+ if (instr->type != nir_instr_type_intrinsic)
+ continue;
+
+ nir_intrinsic_instr *load = nir_instr_as_intrinsic(instr);
+
+ if (load->intrinsic != nir_intrinsic_load_ubo)
+ continue;
+
+ if (load->src[0].ssa == temp_ubo_name) {
+ load->src[0] = nir_src_for_ssa(nir_imm_int(&b, 0));
+ } else if (nir_src_as_uint(load->src[0]) == 0) {
+ nir_ssa_def *offset =
+ nir_iadd(&b, load->src[1].ssa,
+ nir_imm_int(&b, prog_data->nr_params));
+ load->src[1] = nir_src_for_ssa(offset);
+ }
+ }
+ }
+
// XXX: vs clip planes?
if (nir->info.stage != MESA_SHADER_COMPUTE)
brw_nir_analyze_ubo_ranges(compiler, nir, NULL, prog_data->ubo_ranges);