1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
|
/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* 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 3 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, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef QDENGINE_SYSTEM_GRAPHICS_GR_TILE_SPRITE_H
#define QDENGINE_SYSTEM_GRAPHICS_GR_TILE_SPRITE_H
namespace QDEngine {
const int GR_TILE_SPRITE_SIZE_SHIFT = 4;
const int GR_TILE_SPRITE_SIZE_X = 1 << GR_TILE_SPRITE_SIZE_SHIFT;
const int GR_TILE_SPRITE_SIZE_Y = 1 << GR_TILE_SPRITE_SIZE_SHIFT;
const int GR_TILE_SPRITE_SIZE = GR_TILE_SPRITE_SIZE_X * GR_TILE_SPRITE_SIZE_Y;
const int GR_TILE_SPRITE_SIZE_BYTES = GR_TILE_SPRITE_SIZE * 4;
enum grTileCompressionMethod {
TILE_UNCOMPRESSED,
TILE_COMPRESS_RLE,
TILE_COMPRESS_LZ77
};
/// Тайл-спрайт
/// Квадратный 32х битный спрайт фиксированного размера.
/// Данные внешние.
class grTileSprite {
public:
grTileSprite(const uint32 *data_ptr = 0);
bool operator == (const grTileSprite &sprite) const;
bool isEmpty() const {
return !_data;
}
const uint32 *data() const {
return _data;
}
static uint32 comprasionTolerance() {
return _comprasionTolerance;
}
static void setComprasionTolerance(uint32 value) {
_comprasionTolerance = value;
}
static uint32 compress(const uint32 *in_data, uint32 *out_data, grTileCompressionMethod compress_method);
static bool uncompress(const uint32 *in_data, uint32 in_data_length, uint32 *out_data, grTileCompressionMethod compress_method);
private:
const uint32 *_data;
/// толерантность побайтового сравнения данных, [0, 255]
static uint32 _comprasionTolerance;
};
} // namespace QDEngine
#endif // QDENGINE_SYSTEM_GRAPHICS_GR_TILE_SPRITE_H
|
