1 files changed, 114 insertions, 0 deletions
diff --git a/source/blender/depsgraph/intern/node/deg_node_id.h b/source/blender/depsgraph/intern/node/deg_node_id.h
new file mode 100644
index 00000000000..556f61a87e2
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+++ b/source/blender/depsgraph/intern/node/deg_node_id.h
@@ -0,0 +1,114 @@
+/*
+ * ***** BEGIN GPL LICENSE BLOCK *****
+ *
+ * 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) 2013 Blender Foundation.
+ * All rights reserved.
+ *
+ * Original Author: Joshua Leung
+ * Contributor(s): None Yet
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ */
+
+/** \file depsgraph/intern/node/deg_node_id.h
+ *  \ingroup depsgraph
+ */
+
+#pragma once
+
+#include "intern/node/deg_node.h"
+#include "BLI_sys_types.h"
+
+namespace DEG {
+
+struct ComponentNode;
+
+typedef uint64_t IDComponentsMask;
+
+/* NOTE: We use max comparison to mark an id node that is linked more than once
+ * So keep this enum ordered accordingly. */
+enum eDepsNode_LinkedState_Type {
+	/* Generic indirectly linked id node. */
+	DEG_ID_LINKED_INDIRECTLY       = 0,
+	/* Id node present in the set (background) only. */
+	DEG_ID_LINKED_VIA_SET          = 1,
+	/* Id node directly linked via the SceneLayer. */
+	DEG_ID_LINKED_DIRECTLY         = 2,
+};
+const char *linkedStateAsString(eDepsNode_LinkedState_Type linked_state);
+
+/* ID-Block Reference */
+struct IDNode : public Node {
+	struct ComponentIDKey {
+		ComponentIDKey(NodeType type, const char *name = "");
+		bool operator==(const ComponentIDKey &other) const;
+
+		NodeType type;
+		const char *name;
+	};
+
+	virtual void init(const ID *id, const char *subdata) override;
+	void init_copy_on_write(ID *id_cow_hint = NULL);
+	~IDNode();
+	void destroy();
+
+	virtual string identifier() const override;
+
+	ComponentNode *find_component(NodeType type,
+	                                  const char *name = "") const;
+	ComponentNode *add_component(NodeType type,
+	                                 const char *name = "");
+
+	virtual void tag_update(Depsgraph *graph, eUpdateSource source) override;
+
+	void finalize_build(Depsgraph *graph);
+
+	IDComponentsMask get_visible_components_mask() const;
+
+	/* ID Block referenced. */
+	ID *id_orig;
+	ID *id_cow;
+
+	/* Hash to make it faster to look up components. */
+	GHash *components;
+
+	/* Additional flags needed for scene evaluation.
+	 * TODO(sergey): Only needed for until really granular updates
+	 * of all the entities. */
+	uint32_t eval_flags;
+	uint32_t previous_eval_flags;
+
+	/* Extra customdata mask which needs to be evaluated for the mesh object. */
+	uint64_t customdata_mask;
+	uint64_t previous_customdata_mask;
+
+	eDepsNode_LinkedState_Type linked_state;
+
+	/* Indicates the datablock is visible in the evaluated scene. */
+	bool is_directly_visible;
+
+	/* For the collection type of ID, denotes whether collection was fully
+	 * recursed into. */
+	bool is_collection_fully_expanded;
+
+	IDComponentsMask visible_components_mask;
+	IDComponentsMask previously_visible_components_mask;
+
+	DEG_DEPSNODE_DECLARE;
+};
+
+}  // namespace DEG