nir: lower SYSTEM_VALUE_BARYCENTRIC_* to nir_load_barycentric()

Signed-off-by: Samuel Pitoiset <[email protected]>
Reviewed-by: Bas Nieuwenhuizen <[email protected]>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/3578>

1 files changed, 28 insertions, 0 deletions

diff --git a/src/compiler/nir/nir_lower_system_values.c b/src/compiler/nir/nir_lower_system_values.c
index b99ae406ce4..bc9d23cf52d 100644
--- a/src/compiler/nir/nir_lower_system_values.c
+++ b/src/compiler/nir/nir_lower_system_values.c
@@ -270,6 +270,34 @@ lower_system_value_instr(nir_builder *b, nir_instr *instr, void *_state)
       case SYSTEM_VALUE_GLOBAL_GROUP_SIZE:
          return build_global_group_size(b, bit_size);
 
+      case SYSTEM_VALUE_BARYCENTRIC_LINEAR_PIXEL:
+         return nir_load_barycentric(b, nir_intrinsic_load_barycentric_pixel,
+                                     INTERP_MODE_NOPERSPECTIVE);
+
+      case SYSTEM_VALUE_BARYCENTRIC_LINEAR_CENTROID:
+         return nir_load_barycentric(b, nir_intrinsic_load_barycentric_centroid,
+                                     INTERP_MODE_NOPERSPECTIVE);
+
+      case SYSTEM_VALUE_BARYCENTRIC_LINEAR_SAMPLE:
+         return nir_load_barycentric(b, nir_intrinsic_load_barycentric_sample,
+                                     INTERP_MODE_NOPERSPECTIVE);
+
+      case SYSTEM_VALUE_BARYCENTRIC_PERSP_PIXEL:
+         return nir_load_barycentric(b, nir_intrinsic_load_barycentric_pixel,
+                                     INTERP_MODE_SMOOTH);
+
+      case SYSTEM_VALUE_BARYCENTRIC_PERSP_CENTROID:
+         return nir_load_barycentric(b, nir_intrinsic_load_barycentric_centroid,
+                                     INTERP_MODE_SMOOTH);
+
+      case SYSTEM_VALUE_BARYCENTRIC_PERSP_SAMPLE:
+         return nir_load_barycentric(b, nir_intrinsic_load_barycentric_sample,
+                                     INTERP_MODE_SMOOTH);
+
+      case SYSTEM_VALUE_BARYCENTRIC_PULL_MODEL:
+         return nir_load_barycentric(b, nir_intrinsic_load_barycentric_model,
+                                     INTERP_MODE_NONE);
+
       default:
          break;
       }