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radv: Note when a mesh shader writes the primitive shading rate. 

Signed-off-by: Timur Kristóf <timur.kristof@gmail.com>
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/14193>
This commit is contained in:
Timur Kristóf 2021-12-17 17:50:35 +01:00 committed by Marge Bot
parent 94f465856c
commit c6becb9574
2 changed files with 9 additions and 2 deletions
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1
src/amd/vulkan/radv_shader.h
View File

@ -198,6 +198,7 @@ struct radv_vs_output_info {
bool writes_viewport_index;
bool writes_viewport_index_per_primitive;
bool writes_primitive_shading_rate;
bool writes_primitive_shading_rate_per_primitive;
bool export_prim_id;
bool export_prim_id_per_primitive;
bool export_clip_dists;

10
src/amd/vulkan/radv_shader_info.c
View File

@ -552,7 +552,10 @@ gather_info_output_decl(const nir_shader *nir, const nir_variable *var,
vs_info->writes_layer = true;
break;
case VARYING_SLOT_PRIMITIVE_SHADING_RATE:
vs_info->writes_primitive_shading_rate = true;
if (var->data.per_primitive)
vs_info->writes_primitive_shading_rate_per_primitive = true;
else
vs_info->writes_primitive_shading_rate = true;
break;
default:
break;
@ -675,8 +678,11 @@ radv_nir_shader_info_pass(struct radv_device *device, const struct nir_shader *n
outinfo->writes_layer = true;
}
/* VS/TES/GS: shading rate is per-vertex, MS: it's per-primitive. */
bool force_vrs_per_vertex =
device->force_vrs != RADV_FORCE_VRS_NONE && nir->info.stage != MESA_SHADER_MESH;
bool writes_primitive_shading_rate =
outinfo->writes_primitive_shading_rate || device->force_vrs != RADV_FORCE_VRS_NONE;
outinfo->writes_primitive_shading_rate || force_vrs_per_vertex;
int pos_written = 0x1;
if (outinfo->writes_pointsize || outinfo->writes_viewport_index || outinfo->writes_layer ||