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diff --git a/source/blender/blenkernel/intern/subdiv_converter.h b/source/blender/blenkernel/intern/subdiv_converter.h
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+++ b/source/blender/blenkernel/intern/subdiv_converter.h
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+/*
+ * ***** 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) 2018 by Blender Foundation.
+ * All rights reserved.
+ *
+ * Contributor(s): Sergey Sharybin.
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ */
+
+#ifndef __SUBDIV_CONVERTER_H__
+#define __SUBDIV_CONVERTER_H__
+
+#include "BKE_subdiv.h"
+
+/* NOTE: Was initially used to get proper enumerator types, but this makes
+ * it tricky to compile without OpenSubdiv.
+ */
+/* #include "opensubdiv_converter_capi.h" */
+
+struct Mesh;
+struct OpenSubdiv_Converter;
+struct SubdivSettings;
+
+void BKE_subdiv_converter_init_for_mesh(struct OpenSubdiv_Converter *converter,
+                                        const struct SubdivSettings *settings,
+                                        const struct Mesh *mesh);
+
+/* NOTE: Frees converter data, but not converter itself. This means, that if
+ * converter was allocated on heap, it is up to the user to free that memory.
+ */
+void BKE_subdiv_converter_free(struct OpenSubdiv_Converter *converter);
+
+/* ============================ INTERNAL HELPERS ============================ */
+
+/* TODO(sergey): Find a way to make it OpenSubdiv_FVarLinearInterpolation,
+ * without breaking compilation without OpenSubdiv.
+ */
+int BKE_subdiv_converter_fvar_linear_from_settings(
+        const SubdivSettings *settings);
+
+#endif  /* __SUBDIV_CONVERTER_H__ */