glsl: fix packed varyings interface type and add default case

fixes Piglit test:
   arb_program_interface_query/linker/query-varyings.shader_test

Signed-off-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>

diff --git a/src/glsl/linker.cpp b/src/glsl/linker.cpp
index 9d419ac9d39c04d65e1061ec87f613bc729f69da..75396fb39369427e4b8e6e2ba2b5fccfa999b120 100644 (file)
--- a/src/glsl/linker.cpp
+++ b/src/glsl/linker.cpp
@@ -3319,8 +3319,12 @@ add_packed_varyings(struct gl_shader_program *shProg, int stage)
          switch (var->data.mode) {
          case ir_var_shader_in:
             iface = GL_PROGRAM_INPUT;
+            break;
          case ir_var_shader_out:
             iface = GL_PROGRAM_OUTPUT;
+            break;
+         default:
+            unreachable("unexpected type");
          }
          if (!add_program_resource(shProg, iface, var,
                                    build_stageref(shProg, var->name,