/*
 * ***** 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 __BMESH_CORE_H__
#define __BMESH_CORE_H__

/** \file blender/bmesh/intern/bmesh_core.h
 *  \ingroup bmesh
 */

BMFace *BM_face_copy(BMesh *bm_dst, BMesh *bm_src, BMFace *f,
                     const bool copy_verts, const bool copy_edges);

typedef enum eBMCreateFlag {
	BM_CREATE_NOP = 0,
	/* faces and edges only */
	BM_CREATE_NO_DOUBLE = (1 << 1),
	/* Skip CustomData - for all element types data,
	 * use if we immediately write customdata into the element so this skips copying from 'example'
	 * args or setting defaults, speeds up conversion when data is converted all at once. */
	BM_CREATE_SKIP_CD   = (1 << 2),
} eBMCreateFlag;

BMVert *BM_vert_create(BMesh *bm, const float co[3],
                       const BMVert *v_example, const eBMCreateFlag create_flag);
BMEdge *BM_edge_create(BMesh *bm, BMVert *v1, BMVert *v2,
                       const BMEdge *e_example, const eBMCreateFlag create_flag);
BMFace *BM_face_create(BMesh *bm, BMVert **verts, BMEdge **edges, const int len,
                       const BMFace *f_example, const eBMCreateFlag create_flag);
BMFace *BM_face_create_verts(BMesh *bm, BMVert **verts, const int len,
                             const BMFace *f_example, const eBMCreateFlag create_flag,
                             const bool create_edges);

void    BM_face_edges_kill(BMesh *bm, BMFace *f);
void    BM_face_verts_kill(BMesh *bm, BMFace *f);

void    BM_face_kill(BMesh *bm, BMFace *f);
void    BM_edge_kill(BMesh *bm, BMEdge *e);
void    BM_vert_kill(BMesh *bm, BMVert *v);

void    bmesh_edge_separate(BMesh *bm, BMEdge *e, BMLoop *l_sep,
                            const bool copy_select);
bool    BM_edge_splice(BMesh *bm, BMEdge *e, BMEdge *e_target);
bool    BM_vert_splice(BMesh *bm, BMVert *v, BMVert *v_target);
bool    BM_vert_splice_check_double(BMVert *v_a, BMVert *v_b);

void    bmesh_vert_separate(BMesh *bm, BMVert *v, BMVert ***r_vout, int *r_vout_len,
                            const bool copy_select);

bool    bmesh_loop_reverse(BMesh *bm, BMFace *f);

BMFace *BM_faces_join(BMesh *bm, BMFace **faces, int totface, const bool do_del);
void    BM_vert_separate(BMesh *bm, BMVert *v, BMVert ***r_vout, int *r_vout_len,
                         BMEdge **e_in, int e_in_len);

/* EULER API - For modifying structure */
BMFace *bmesh_sfme(BMesh *bm, BMFace *f,
                   BMLoop *l1, BMLoop *l2,
                   BMLoop **r_l,
#ifdef USE_BMESH_HOLES
                   ListBase *holes,
#endif
                   BMEdge *example,
                   const bool no_double
                   );

BMVert *bmesh_semv(BMesh *bm, BMVert *tv, BMEdge *e, BMEdge **r_e);
BMEdge *bmesh_jekv(BMesh *bm, BMEdge *e_kill, BMVert *v_kill,
                   const bool do_del, const bool check_edge_splice);
BMFace *bmesh_jfke(BMesh *bm, BMFace *f1, BMFace *f2, BMEdge *e);
BMVert *bmesh_urmv(BMesh *bm, BMFace *f_sep, BMVert *v_sep);
BMVert *bmesh_urmv_loop(BMesh *bm, BMLoop *l_sep);

void    bmesh_face_swap_data(BMFace *f_a, BMFace *f_b);

#endif /* __BMESH_CORE_H__ */