1 files changed, 64 insertions, 0 deletions
diff --git a/intern/cycles/subd/patch_table.h b/intern/cycles/subd/patch_table.h
new file mode 100644
index 00000000000..b5fd5923f31
--- /dev/null
+++ b/intern/cycles/subd/patch_table.h
@@ -0,0 +1,64 @@
+/*
+ * Copyright 2011-2016 Blender Foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef __SUBD_PATCH_TABLE_H__
+#define __SUBD_PATCH_TABLE_H__
+
+#include "util/array.h"
+#include "util/types.h"
+
+#ifdef WITH_OPENSUBDIV
+#  ifdef _MSC_VER
+#    include "iso646.h"
+#  endif
+
+#  include <opensubdiv/far/patchTable.h>
+#endif
+
+CCL_NAMESPACE_BEGIN
+
+#ifdef WITH_OPENSUBDIV
+using namespace OpenSubdiv;
+#else
+/* forward declare for when OpenSubdiv is unavailable */
+namespace Far {
+struct PatchTable;
+}
+#endif
+
+#define PATCH_ARRAY_SIZE 4
+#define PATCH_PARAM_SIZE 2
+#define PATCH_HANDLE_SIZE 3
+#define PATCH_NODE_SIZE 1
+
+struct PackedPatchTable {
+  array<uint> table;
+
+  size_t num_arrays;
+  size_t num_indices;
+  size_t num_patches;
+  size_t num_nodes;
+
+  /* calculated size from num_* members */
+  size_t total_size();
+
+  void pack(Far::PatchTable *patch_table, int offset = 0);
+  void copy_adjusting_offsets(uint *dest, int doffset);
+};
+
+CCL_NAMESPACE_END
+
+#endif /* __SUBD_PATCH_TABLE_H__ */