i965: Add support for gl_BaseVertexARB and gl_BaseInstanceARB

[mesa.git] / src / mesa / drivers / dri / i965 / brw_fs_nir.cpp

diff --git a/src/mesa/drivers/dri/i965/brw_fs_nir.cpp b/src/mesa/drivers/dri/i965/brw_fs_nir.cpp
index bb6ab53fbc5e81a327c399da73b5a4f3e662fbf9..5b901a082c666fdf6f410f71d4f6993951f83947 100644 (file)
--- a/src/mesa/drivers/dri/i965/brw_fs_nir.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs_nir.cpp
@@ -222,6 +222,13 @@ emit_system_values_block(nir_block *block, void *void_visitor)
             *reg = *v->emit_vs_system_value(SYSTEM_VALUE_INSTANCE_ID);
          break;
 
+      case nir_intrinsic_load_base_instance:
+         assert(v->stage == MESA_SHADER_VERTEX);
+         reg = &v->nir_system_values[SYSTEM_VALUE_BASE_INSTANCE];
+         if (reg->file == BAD_FILE)
+            *reg = *v->emit_vs_system_value(SYSTEM_VALUE_BASE_INSTANCE);
+         break;
+
       case nir_intrinsic_load_invocation_id:
          assert(v->stage == MESA_SHADER_GEOMETRY);
          reg = &v->nir_system_values[SYSTEM_VALUE_INVOCATION_ID];
@@ -1747,7 +1754,8 @@ fs_visitor::nir_emit_vs_intrinsic(const fs_builder &bld,
 
    case nir_intrinsic_load_vertex_id_zero_base:
    case nir_intrinsic_load_base_vertex:
-   case nir_intrinsic_load_instance_id: {
+   case nir_intrinsic_load_instance_id:
+   case nir_intrinsic_load_base_instance: {
       gl_system_value sv = nir_system_value_from_intrinsic(instr->intrinsic);
       fs_reg val = nir_system_values[sv];
       assert(val.file != BAD_FILE);