diff options
Diffstat (limited to 'source/blender/depsgraph/intern/depsgraph.cc')
| -rw-r--r-- | source/blender/depsgraph/intern/depsgraph.cc | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/source/blender/depsgraph/intern/depsgraph.cc b/source/blender/depsgraph/intern/depsgraph.cc index ce6797939b5..a19a2958f28 100644 --- a/source/blender/depsgraph/intern/depsgraph.cc +++ b/source/blender/depsgraph/intern/depsgraph.cc @@ -285,6 +285,29 @@ Depsgraph *DEG_graph_new(Main *bmain, Scene *scene, ViewLayer *view_layer, eEval return reinterpret_cast<Depsgraph *>(deg_depsgraph); } +/* Replace the "owner" pointers (currently Main/Scene/ViewLayer) of this depsgraph. + * Used during undo steps when we do want to re-use the old depsgraph data as much as possible. */ +void DEG_graph_replace_owners(struct Depsgraph *depsgraph, + Main *bmain, + Scene *scene, + ViewLayer *view_layer) +{ + DEG::Depsgraph *deg_graph = reinterpret_cast<DEG::Depsgraph *>(depsgraph); + + const bool do_update_register = deg_graph->bmain != bmain; + if (do_update_register && deg_graph->bmain != NULL) { + DEG::unregister_graph(deg_graph); + } + + deg_graph->bmain = bmain; + deg_graph->scene = scene; + deg_graph->view_layer = view_layer; + + if (do_update_register) { + DEG::register_graph(deg_graph); + } +} + /* Free graph's contents and graph itself */ void DEG_graph_free(Depsgraph *graph) { |