copying bmesh dir on its own from bmesh branch

1 files changed, 190 insertions, 0 deletions

diff --git a/source/blender/bmesh/bmesh_class.h b/source/blender/bmesh/bmesh_class.h
new file mode 100644
index 00000000000..3a62eaa2eeb
--- /dev/null
+++ b/source/blender/bmesh/bmesh_class.h
@@ -0,0 +1,190 @@
+/*
+ * ***** 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): Geoffrey Bantle, Levi Schooley, Joseph Eagar.
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ */
+
+#ifndef __BMESH_CLASS_H__
+#define __BMESH_CLASS_H__
+
+/** \file blender/bmesh/bmesh_class.h
+ *  \ingroup bmesh
+ */
+
+/* bmesh data structures */
+
+/* dissable holes for now, these are ifdef'd because they use more memory and cant be saved in DNA currently */
+// define USE_BMESH_HOLES
+
+struct BMesh;
+struct BMVert;
+struct BMEdge;
+struct BMLoop;
+struct BMFace;
+struct BMFlagLayer;
+struct BMLayerType;
+struct BMSubClassLayer;
+
+struct BLI_mempool;
+struct Object;
+
+/*note: it is very important for BMHeader to start with two
+  pointers. this is a requirement of mempool's method of
+  iteration.
+*/
+typedef struct BMHeader {
+	void *data; /* customdata layers */
+	int index; /* notes:
+	            * - Use BM_elem_index_get/SetIndex macros for index
+	            * - Unitialized to -1 so we can easily tell its not set.
+	            * - Used for edge/vert/face, check BMesh.elem_index_dirty for valid index values,
+	            *   this is abused by various tools which set it dirty.
+	            * - For loops this is used for sorting during tesselation. */
+
+	char htype; /* element geometric type (verts/edges/loops/faces) */
+	char hflag; /* this would be a CD layer, see below */
+} BMHeader;
+
+/* note: need some way to specify custom locations for custom data layers.  so we can
+ * make them point directly into structs.  and some way to make it only happen to the
+ * active layer, and properly update when switching active layers.*/
+
+typedef struct BMVert {
+	BMHeader head;
+	struct BMFlagLayer *oflags; /* keep after header, an array of flags, mostly used by the operator stack */
+
+	float co[3];
+	float no[3];
+	struct BMEdge *e;
+} BMVert;
+
+/* disk link structure, only used by edges */
+typedef struct BMDiskLink {
+	struct BMEdge *next, *prev;
+} BMDiskLink;
+
+typedef struct BMEdge {
+	BMHeader head;
+	struct BMFlagLayer *oflags; /* keep after header, an array of flags, mostly used by the operator stack */
+
+	struct BMVert *v1, *v2;
+	struct BMLoop *l;
+	
+	/* disk cycle pointers */
+	BMDiskLink v1_disk_link, v2_disk_link;
+} BMEdge;
+
+typedef struct BMLoop {
+	BMHeader head;
+	/* notice no flags layer */
+
+	struct BMVert *v;
+	struct BMEdge *e;
+	struct BMFace *f;
+
+	struct BMLoop *radial_next, *radial_prev;
+	
+	/* these were originally commented as private but are used all over the code */
+	/* can't use ListBase API, due to head */
+	struct BMLoop *next, *prev;
+} BMLoop;
+
+/* can cast BMFace/BMEdge/BMVert, but NOT BMLoop, since these dont have a flag layer */
+typedef struct BMElemF {
+	BMHeader head;
+	struct BMFlagLayer *oflags; /* keep after header, an array of flags, mostly used by the operator stack */
+} BMElemF;
+
+#ifdef USE_BMESH_HOLES
+/* eventually, this structure will be used for supporting holes in faces */
+typedef struct BMLoopList {
+	struct BMLoopList *next, *prev;
+	struct BMLoop *first, *last;
+} BMLoopList;
+#endif
+
+typedef struct BMFace {
+	BMHeader head;
+	struct BMFlagLayer *oflags; /* an array of flags, mostly used by the operator stack */
+
+	int len; /*includes all boundary loops*/
+#ifdef USE_BMESH_HOLES
+	int totbounds; /*total boundaries, is one plus the number of holes in the face*/
+	ListBase loops;
+#else
+	BMLoop *l_first;
+#endif
+	float no[3]; /*yes, we do store this here*/
+	short mat_nr;
+} BMFace;
+
+typedef struct BMFlagLayer {
+	short f, pflag; /* flags */
+} BMFlagLayer;
+
+typedef struct BMesh {
+	int totvert, totedge, totloop, totface;
+	int totvertsel, totedgesel, totfacesel;
+
+	/* flag index arrays as being dirty so we can check if they are clean and
+	 * avoid looping over the entire vert/edge/face array in those cases.
+	 * valid flags are - BM_VERT | BM_EDGE | BM_FACE.
+	 * BM_LOOP isnt handled so far. */
+	char elem_index_dirty;
+	
+	/*element pools*/
+	struct BLI_mempool *vpool, *epool, *lpool, *fpool;
+
+	/*operator api stuff*/
+	struct BLI_mempool *toolflagpool;
+	int stackdepth;
+	struct BMOperator *currentop;
+	
+	CustomData vdata, edata, ldata, pdata;
+
+#ifdef USE_BMESH_HOLES
+	struct BLI_mempool *looplistpool;
+#endif
+
+	/* should be copy of scene select mode */
+	/* stored in BMEditMesh too, this is a bit confusing,
+	 * make sure the're in sync!
+	 * Only use when the edit mesh cant be accessed - campbell */
+	short selectmode;
+	
+	/*ID of the shape key this bmesh came from*/
+	int shapenr;
+	
+	int walkers, totflags;
+	ListBase selected, error_stack;
+	
+	BMFace *act_face;
+
+	ListBase errorstack;
+	struct Object *ob; /* owner object */
+	
+	int opflag; /* current operator flag */
+} BMesh;
+
+#define BM_VERT		1
+#define BM_EDGE		2
+#define BM_LOOP		4
+#define BM_FACE		8
+
+#endif /* __BMESH_CLASS_H__ */