diff options
| author | Jesse Natalie <jenatali@microsoft.com> | 2024-03-31 17:56:33 -0700 |
|---|---|---|
| committer | Marge Bot <emma+marge@anholt.net> | 2024-04-04 20:29:11 +0000 |
| commit | 5d0c77658c5ca628d16e4cde9591d61d6e32280c (patch) | |
| tree | b929d702d0ea03182bc1d1519a2a676947400659 | |
| parent | d28a552e2a11f744d0a534f79b61c79d4e708c0d (diff) | |
d3d12: Forward front-facing for passthrough GS
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/28535>
| -rw-r--r-- | src/gallium/drivers/d3d12/d3d12_gs_variant.cpp | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/src/gallium/drivers/d3d12/d3d12_gs_variant.cpp b/src/gallium/drivers/d3d12/d3d12_gs_variant.cpp index e243e9213cc..26b1c132a49 100644 --- a/src/gallium/drivers/d3d12/d3d12_gs_variant.cpp +++ b/src/gallium/drivers/d3d12/d3d12_gs_variant.cpp @@ -88,6 +88,7 @@ d3d12_make_passthrough_gs(struct d3d12_context *ctx, struct d3d12_gs_variant_key nir->info.gs.vertices_out = 1; nir->info.gs.invocations = 1; nir->info.gs.active_stream_mask = 1; + nir->num_outputs = 0; /* Copy inputs to outputs. */ while (varyings) { @@ -124,9 +125,21 @@ d3d12_make_passthrough_gs(struct d3d12_context *ctx, struct d3d12_gs_variant_key nir_deref_instr *in_value = nir_build_deref_array(&b, nir_build_deref_var(&b, in), nir_imm_int(&b, 0)); copy_vars(&b, nir_build_deref_var(&b, out), in_value); + nir->num_outputs++; } } + if (key->has_front_face) { + nir_variable *front_facing_var = nir_variable_create(nir, + nir_var_shader_out, + glsl_uint_type(), + "gl_FrontFacing"); + front_facing_var->data.location = VARYING_SLOT_VAR12; + front_facing_var->data.driver_location = nir->num_outputs++; + front_facing_var->data.interpolation = INTERP_MODE_FLAT; + nir_store_deref(&b, nir_build_deref_var(&b, front_facing_var), nir_imm_int(&b, 1), 1); + } + nir_emit_vertex(&b, 0); nir_end_primitive(&b, 0); |