Depsgraph: Introduce depsgraph registry

Allows to access dependency graphs created for render engines
to inform them about changes in .blend file structure from the
Python handlers.

Reviewers: brecht

Differential Revision: https://developer.blender.org/D5724

1 files changed, 38 insertions, 0 deletions

diff --git a/source/blender/depsgraph/intern/depsgraph_registry.h b/source/blender/depsgraph/intern/depsgraph_registry.h
new file mode 100644
index 00000000000..7517b6a0b2a
--- /dev/null
+++ b/source/blender/depsgraph/intern/depsgraph_registry.h
@@ -0,0 +1,38 @@
+/*
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * The Original Code is Copyright (C) 2019 Blender Foundation.
+ * All rights reserved.
+ */
+
+/** \file
+ * \ingroup depsgraph
+ */
+
+#pragma once
+
+#include "intern/depsgraph_type.h"
+
+struct Main;
+
+namespace DEG {
+
+struct Depsgraph;
+
+void register_graph(Depsgraph *depsgraph);
+void unregister_graph(Depsgraph *depsgraph);
+const set<Depsgraph *> &get_all_registered_graphs(Main *bmain);
+
+}  // namespace DEG