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059ae173 WD |
1 | /* (C) Copyright 2002 |
2 | * Detlev Zundel, DENX Software Engineering, [email protected]. | |
3 | * | |
4 | * See file CREDITS for list of people who contributed to this | |
5 | * project. | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or | |
8 | * modify it under the terms of the GNU General Public License as | |
9 | * published by the Free Software Foundation; either version 2 of | |
10 | * the License, or (at your option) any later version. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with this program; if not, write to the Free Software | |
19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, | |
20 | * MA 02111-1307 USA | |
21 | */ | |
22 | ||
23 | /************************************************************************/ | |
24 | /* ** Layout of a bmp file */ | |
25 | /************************************************************************/ | |
26 | ||
27 | #ifndef _BMP_H_ | |
28 | #define _BMP_H_ | |
29 | ||
30 | typedef struct bmp_color_table_entry { | |
27b207fd WD |
31 | __u8 blue; |
32 | __u8 green; | |
33 | __u8 red; | |
34 | __u8 reserved; | |
35 | } __attribute__ ((packed)) bmp_color_table_entry_t; | |
059ae173 WD |
36 | |
37 | /* When accessing these fields, remember that they are stored in little | |
38 | endian format, so use linux macros, e.g. le32_to_cpu(width) */ | |
39 | ||
27b207fd WD |
40 | typedef struct bmp_header { |
41 | /* Header */ | |
42 | char signature[2]; | |
43 | __u32 file_size; | |
44 | __u32 reserved; | |
45 | __u32 data_offset; | |
46 | /* InfoHeader */ | |
47 | __u32 size; | |
48 | __u32 width; | |
49 | __u32 height; | |
50 | __u16 planes; | |
51 | __u16 bit_count; | |
52 | __u32 compression; | |
53 | __u32 image_size; | |
54 | __u32 x_pixels_per_m; | |
55 | __u32 y_pixels_per_m; | |
56 | __u32 colors_used; | |
57 | __u32 colors_important; | |
58 | /* ColorTable */ | |
8bde7f77 | 59 | |
27b207fd | 60 | } __attribute__ ((packed)) bmp_header_t; |
059ae173 WD |
61 | |
62 | typedef struct bmp_image { | |
27b207fd WD |
63 | bmp_header_t header; |
64 | /* We use a zero sized array just as a placeholder for variable | |
65 | sized array */ | |
66 | bmp_color_table_entry_t color_table[0]; | |
059ae173 WD |
67 | } bmp_image_t; |
68 | ||
69 | /* Data in the bmp_image is aligned to this length */ | |
27b207fd | 70 | #define BMP_DATA_ALIGN 4 |
059ae173 WD |
71 | |
72 | /* Constants for the compression field */ | |
27b207fd WD |
73 | #define BMP_BI_RGB 0 |
74 | #define BMP_BI_RLE8 1 | |
75 | #define BMP_BI_RLE4 2 | |
059ae173 | 76 | |
27b207fd | 77 | #endif /* _BMP_H_ */ |