1 files changed, 94 insertions, 0 deletions
diff --git a/source/blender/blenkernel/BKE_tessmesh.h b/source/blender/blenkernel/BKE_tessmesh.h
new file mode 100644
index 00000000000..cc3f2870711
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+++ b/source/blender/blenkernel/BKE_tessmesh.h
@@ -0,0 +1,94 @@
+/*
+ * ***** 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.
+ *
+ * Contributor(s): Joseph Eagar.
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ */
+
+#ifndef __BKE_TESSMESH_H__
+#define __BKE_TESSMESH_H__
+
+#include "bmesh.h"
+
+struct BMesh;
+struct BMLoop;
+struct BMFace;
+struct Mesh;
+struct DerivedMesh;
+
+/*
+ok: the EDBM module is for editmode bmesh stuff.  in contrast, the 
+    BMEdit module is for code shared with blenkernel that concerns
+    the BMEditMesh structure.
+*/
+
+/*this structure replaces EditMesh.
+ 
+  through this, you get access to both the edit bmesh,
+  it's tesselation, and various stuff that doesn't belong in the BMesh
+  struct itself.
+  
+  the entire derivedmesh and modifier system works with this structure,
+  and not BMesh.  Mesh->edit_bmesh stores a pointer to this structure.*/
+typedef struct BMEditMesh {
+	struct BMesh *bm;
+
+	/*this is for undoing failed operations*/
+	struct BMEditMesh *emcopy;
+	int emcopyusers;
+	
+	/*we store tesselations as triplets of three loops,
+	  which each define a triangle.*/
+	struct BMLoop *(*looptris)[3];
+	int tottri;
+
+	/*derivedmesh stuff*/
+	struct DerivedMesh *derivedFinal, *derivedCage;
+	int lastDataMask;
+
+	/* index tables, to map indices to elements via
+	 * EDBM_init_index_arrays and associated functions.  don't
+	 * touch this or read it directly.*/
+	struct BMVert **vert_index;
+	struct BMEdge **edge_index;
+	struct BMFace **face_index;
+
+	/*selection mode*/
+	short selectmode;
+	short mat_nr;
+
+	/*Mesh structure this editmesh came from, if it came from one*/
+	struct Mesh *me;
+	struct Object *ob;
+
+	/*temp variables for x-mirror editing*/
+	int mirror_cdlayer; /* -1 is invalid */
+	int mirr_free_arrays;
+} BMEditMesh;
+
+/* undo triggers editmesh tessface update, this is odd but works OK.
+ * BMESH_TODO, look into having the update elsewhere. */
+#define BMESH_EM_UNDO_RECALC_TESSFACE_WORKAROUND
+
+void BMEdit_RecalcTesselation(BMEditMesh *tm);
+BMEditMesh *BMEdit_Create(BMesh *bm, int do_tesselate);
+BMEditMesh *BMEdit_Copy(BMEditMesh *tm);
+void BMEdit_Free(BMEditMesh *em);
+void BMEdit_UpdateLinkedCustomData(BMEditMesh *em);
+
+#endif /* __BKE_TESSMESH_H__ */