Depsgraph: Add queries whether ID is original/evaluated

1 files changed, 13 insertions, 0 deletions

diff --git a/source/blender/depsgraph/DEG_depsgraph_query.h b/source/blender/depsgraph/DEG_depsgraph_query.h
index 3030bfb28b3..a7b5535d11a 100644
--- a/source/blender/depsgraph/DEG_depsgraph_query.h
+++ b/source/blender/depsgraph/DEG_depsgraph_query.h
@@ -100,6 +100,19 @@ struct Object *DEG_get_original_object(struct Object *object);
 /* Get original version of given evaluated ID datablock. */
 struct ID *DEG_get_original_id(struct ID *id);
 
+/* Check whether given ID is an original,
+ *
+ * Original IDs are considered all the IDs which are not covered by copy-on-write system and are
+ * not out-of-main localized datablocks. */
+bool DEG_is_original_id(struct ID *id);
+bool DEG_is_original_object(struct Object *object);
+
+/* Opposite of the above.
+ *
+ * If the datablock is not original it must be evaluated, and vice versa. */
+bool DEG_is_evaluated_id(struct ID *id);
+bool DEG_is_evaluated_object(struct Object *object);
+
 /* ************************ DEG object iterators ********************* */
 
 enum {