1 /* Copyright (C) 2006 MySQL AB & Ramil Kalimullin & MySQL Finland AB
2    & TCX DataKonsult AB
3 
4    This program is free software; you can redistribute it and/or modify
5    it under the terms of the GNU General Public License as published by
6    the Free Software Foundation; version 2 of the License.
7 
8    This program is distributed in the hope that it will be useful,
9    but WITHOUT ANY WARRANTY; without even the implied warranty of
10    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
11    GNU General Public License for more details.
12 
13    You should have received a copy of the GNU General Public License
14    along with this program; if not, write to the Free Software
15    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA */
16 
17 #ifndef _rt_mbr_h
18 #define _rt_mbr_h
19 
20 #ifdef HAVE_RTREE_KEYS
21 
22 int maria_rtree_key_cmp(HA_KEYSEG *keyseg, const uchar *a, const uchar *b,
23                         uint key_length, uint32 nextflag);
24 int maria_rtree_combine_rect(const HA_KEYSEG *keyseg,
25                              const uchar *, const uchar *, uchar*,
26                              uint key_length);
27 double maria_rtree_rect_volume(HA_KEYSEG *keyseg, uchar*, uint key_length);
28 int maria_rtree_d_mbr(const HA_KEYSEG *keyseg, const uchar *a,
29                       uint key_length, double *res);
30 double maria_rtree_overlapping_area(HA_KEYSEG *keyseg, uchar *a, uchar *b,
31                                     uint key_length);
32 double maria_rtree_area_increase(const HA_KEYSEG *keyseg, const uchar *a,
33                                  const uchar *b,
34                                  uint key_length, double *ab_area);
35 double maria_rtree_perimeter_increase(HA_KEYSEG *keyseg, uchar* a, uchar* b,
36                                       uint key_length, double *ab_perim);
37 int maria_rtree_page_mbr(const HA_KEYSEG *keyseg, MARIA_PAGE *page,
38                          uchar *key, uint key_length);
39 #endif /*HAVE_RTREE_KEYS*/
40 #endif /* _rt_mbr_h */
41