1 files changed, 84 insertions, 0 deletions
diff --git a/source/blender/blenkernel/intern/subdiv_stats.c b/source/blender/blenkernel/intern/subdiv_stats.c
new file mode 100644
index 00000000000..f2219961ab7
--- /dev/null
+++ b/source/blender/blenkernel/intern/subdiv_stats.c
@@ -0,0 +1,84 @@
+/*
+ * ***** 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 *****
+ */
+
+/** \file blender/blenkernel/intern/subdiv_stats.c
+ *  \ingroup bke
+ */
+
+#include "BKE_subdiv.h"
+
+#include <stdio.h>
+
+#include "PIL_time.h"
+
+void BKE_subdiv_stats_init(SubdivStats *stats)
+{
+	stats->topology_refiner_creation_time = 0.0;
+	stats->subdiv_to_mesh_time = 0.0;
+	stats->subdiv_to_mesh_geometry_time = 0.0;
+	stats->evaluator_creation_time = 0.0;
+	stats->evaluator_refine_time = 0.0;
+}
+
+void BKE_subdiv_stats_begin(SubdivStats *stats, eSubdivStatsValue value)
+{
+	stats->begin_timestamp_[value] = PIL_check_seconds_timer();
+}
+
+void BKE_subdiv_stats_end(SubdivStats *stats, eSubdivStatsValue value)
+{
+	stats->values_[value] =
+	        PIL_check_seconds_timer() - stats->begin_timestamp_[value];
+}
+
+void BKE_subdiv_stats_print(const SubdivStats *stats)
+{
+#define STATS_PRINT_TIME(stats, value, description)                 \
+	do {                                                            \
+		if ((stats)->value > 0.0) {                                 \
+		  printf("  %s: %f (sec)\n", description, (stats)->value);  \
+		}                                                           \
+	} while (false)
+
+	printf("Subdivision surface statistics:\n");
+
+	STATS_PRINT_TIME(stats,
+	                 topology_refiner_creation_time,
+	                 "Topology refiner creation time");
+	STATS_PRINT_TIME(stats,
+	                 subdiv_to_mesh_time,
+	                 "Subdivision to mesh time");
+	STATS_PRINT_TIME(stats,
+	                 subdiv_to_mesh_geometry_time,
+	                 "    Geometry time");
+	STATS_PRINT_TIME(stats,
+	                 evaluator_creation_time,
+	                 "Evaluator creation time");
+	STATS_PRINT_TIME(stats,
+	                 evaluator_refine_time,
+	                 "Evaluator refine time");
+
+#undef STATS_PRINT_TIME
+}