From 777690902663f3dc820f183329e404a6388485f4 Mon Sep 17 00:00:00 2001
From: Howard Trickey <howard.trickey@gmail.com>
Date: Wed, 1 Jul 2020 12:42:04 -0400
Subject: Change boolean blenlib interface to be purely C++.

---
 source/blender/blenlib/BLI_boolean.hh | 67 +++++++++++++++++++++++++++++++++++
 1 file changed, 67 insertions(+)
 create mode 100644 source/blender/blenlib/BLI_boolean.hh

(limited to 'source/blender/blenlib/BLI_boolean.hh')

diff --git a/source/blender/blenlib/BLI_boolean.hh b/source/blender/blenlib/BLI_boolean.hh
new file mode 100644
index 00000000000..1ced075a907
--- /dev/null
+++ b/source/blender/blenlib/BLI_boolean.hh
@@ -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.
+ */
+
+#ifndef __BLI_BOOLEAN_HH__
+#define __BLI_BOOLEAN_HH__
+
+/** \file
+ * \ingroup bli
+ */
+
+#  include "BLI_array.hh"
+#  include "BLI_math_mpq.hh"
+#  include "BLI_mesh_intersect.hh"
+#  include "BLI_mpq3.hh"
+
+namespace blender {
+namespace meshintersect {
+
+/* Enum values after BOOLEAN_NONE need to match BMESH_ISECT_BOOLEAN_... values in editmesh_intersect.c. */
+enum bool_optype {
+  BOOLEAN_NONE = -1,
+  /* Aligned with BooleanModifierOp. */
+  BOOLEAN_ISECT = 0,
+  BOOLEAN_UNION = 1,
+  BOOLEAN_DIFFERENCE = 2,
+};
+
+struct PolyMeshOrig {
+  Array<int> vert_orig;
+  Array<Array<int>> face_orig;
+  Array<Array<std::pair<int, int>>> edge_orig;
+};
+
+struct PolyMesh {
+  Array<mpq3> vert;
+  Array<Array<int>> face;
+  /* triangulation can have zero length: then boolean will do it.  */
+  Array<Array<IndexedTriangle>> triangulation;
+  /* orig can be dummy for boolean input, but has useful information for its output. */
+  PolyMeshOrig orig;
+};
+
+PolyMesh boolean(PolyMesh &pm, bool_optype op, int nshapes, std::function<int(int)> shape_fn);
+
+TriMesh boolean_trimesh(const TriMesh &tm, bool_optype op, int nshapes, std::function<int(int)> shape_fn);
+
+void write_obj_polymesh(const Array<mpq3> &vert,
+                        const Array<Array<int>> &face,
+                        const std::string &objname);
+
+}  // namespace meshintersect
+}  // namespace blender
+
+#endif /* __BLI_BOOLEAN_HH__ */
-- 
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