fdo-mirrors/mesa
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/mesa/mesa.git synced 2026-01-25 16:40:30 +01:00
Code Issues Projects Releases Packages Wiki Activity Actions 1

tgsi_to_nir: add support for the stencil FS output

Browse source 
Reviewed-By: Timur Kristóf <timur.kristof@gmail.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Connor Abbott <cwabbott0@gmail.com>
This commit is contained in:
Marek Olšák 2019-08-01 12:29:05 -04:00
parent f3f1d0dfd0
commit 8ac2583cd8
1 changed files with 12 additions and 5 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

17
src/gallium/auxiliary/nir/tgsi_to_nir.c
View file

@ -418,6 +418,10 @@ ttn_emit_declaration(struct ttn_compile *c)
var->data.location = FRAG_RESULT_DEPTH;
var->type = glsl_float_type();
break;
case TGSI_SEMANTIC_STENCIL:
var->data.location = FRAG_RESULT_STENCIL;
var->type = glsl_int_type();
break;
default:
fprintf(stderr, "Bad TGSI semantic: %d/%d\n",
decl->Semantic.Name, decl->Semantic.Index);
@ -2330,12 +2334,15 @@ ttn_add_output_stores(struct ttn_compile *c)
src.reg.base_offset = c->output_regs[i].offset;
nir_ssa_def *store_value = nir_ssa_for_src(b, src, 4);
if (c->build.shader->info.stage == MESA_SHADER_FRAGMENT &&
var->data.location == FRAG_RESULT_DEPTH) {
/* TGSI uses TGSI_SEMANTIC_POSITION.z for the depth output, while
* NIR uses a single float FRAG_RESULT_DEPTH.
if (c->build.shader->info.stage == MESA_SHADER_FRAGMENT) {
/* TGSI uses TGSI_SEMANTIC_POSITION.z for the depth output
* and TGSI_SEMANTIC_STENCIL.y for the stencil output,
* while NIR uses a single-component output.
*/
store_value = nir_channel(b, store_value, 2);
if (var->data.location == FRAG_RESULT_DEPTH)
store_value = nir_channel(b, store_value, 2);
else if (var->data.location == FRAG_RESULT_STENCIL)
store_value = nir_channel(b, store_value, 1);
}
nir_store_deref(b, nir_build_deref_var(b, var), store_value,