1 /* Libart_LGPL - library of basic graphic primitives
2 * Copyright (C) 1998 Raph Levien
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Library General Public License for more details.
14 * You should have received a copy of the GNU Library General Public
15 * License along with this library; if not, write to the
16 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 * Boston, MA 02111-1307, USA.
23 /* Basic data structures and constructors for microtile arrays */
25 #ifdef LIBART_COMPILATION
33 #endif /* __cplusplus */
35 typedef art_u32 ArtUtaBbox;
36 typedef struct _ArtUta ArtUta;
38 #define ART_UTA_BBOX_CONS(x0, y0, x1, y1) (((x0) << 24) | ((y0) << 16) | \
41 #define ART_UTA_BBOX_X0(ub) ((ub) >> 24)
42 #define ART_UTA_BBOX_Y0(ub) (((ub) >> 16) & 0xff)
43 #define ART_UTA_BBOX_X1(ub) (((ub) >> 8) & 0xff)
44 #define ART_UTA_BBOX_Y1(ub) ((ub) & 0xff)
46 #define ART_UTILE_SHIFT 5
47 #define ART_UTILE_SIZE (1 << ART_UTILE_SHIFT)
49 /* Coordinates are shifted right by ART_UTILE_SHIFT wrt the real
60 art_uta_new (int x0, int y0, int x1, int y1);
63 art_uta_new_coords (int x0, int y0, int x1, int y1);
66 art_uta_free (ArtUta *uta);
70 #endif /* __cplusplus */
72 #endif /* __ART_UTA_H__ */