1 files changed, 67 insertions, 0 deletions
diff --git a/source/blender/blenkernel/intern/subdiv_ccg_material.c b/source/blender/blenkernel/intern/subdiv_ccg_material.c
new file mode 100644
index 00000000000..0dc86095cff
--- /dev/null
+++ b/source/blender/blenkernel/intern/subdiv_ccg_material.c
@@ -0,0 +1,67 @@
+/*
+ * 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.
+ */
+
+/** \file
+ * \ingroup bke
+ */
+
+#include "BKE_subdiv_ccg.h"
+
+#include "MEM_guardedalloc.h"
+
+#include "DNA_mesh_types.h"
+
+typedef struct CCGMaterialFromMeshData {
+	const Mesh *mesh;
+} CCGMaterialFromMeshData;
+
+static DMFlagMat subdiv_ccg_material_flags_eval(
+	        SubdivCCGMaterialFlagsEvaluator *material_flags_evaluator,
+	        const int coarse_face_index)
+{
+	CCGMaterialFromMeshData *data =
+	        (CCGMaterialFromMeshData *)material_flags_evaluator->user_data;
+	const Mesh *mesh = data->mesh;
+	BLI_assert(coarse_face_index < mesh->totpoly);
+	const MPoly *mpoly = mesh->mpoly;
+	const MPoly *poly = &mpoly[coarse_face_index];
+	DMFlagMat material_flags;
+	material_flags.flag = poly->flag;
+	material_flags.mat_nr = poly->mat_nr;
+	return material_flags;
+}
+
+static void subdiv_ccg_material_flags_free(
+        SubdivCCGMaterialFlagsEvaluator *material_flags_evaluator)
+{
+	MEM_freeN(material_flags_evaluator->user_data);
+}
+
+void BKE_subdiv_ccg_material_flags_init_from_mesh(
+        SubdivCCGMaterialFlagsEvaluator *material_flags_evaluator,
+        const Mesh *mesh)
+{
+	CCGMaterialFromMeshData *data = MEM_mallocN(
+	        sizeof(CCGMaterialFromMeshData), "ccg material eval");
+	data->mesh = mesh;
+	material_flags_evaluator->eval_material_flags =
+	        subdiv_ccg_material_flags_eval;
+	material_flags_evaluator->free = subdiv_ccg_material_flags_free;
+	material_flags_evaluator->user_data = data;
+}
+\ No newline at end of file