1 /* (C) Copyright 2002 2 * Detlev Zundel, DENX Software Engineering, dzu@denx.de. 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 { 31 __u8 blue; 32 __u8 green; 33 __u8 red; 34 __u8 reserved; 35 } __attribute__ ((packed)) bmp_color_table_entry_t; 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 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 */ 59 60 } __attribute__ ((packed)) bmp_header_t; 61 62 typedef struct bmp_image { 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]; 67 } bmp_image_t; 68 69 /* Data in the bmp_image is aligned to this length */ 70 #define BMP_DATA_ALIGN 4 71 72 /* Constants for the compression field */ 73 #define BMP_BI_RGB 0 74 #define BMP_BI_RLE8 1 75 #define BMP_BI_RLE4 2 76 77 #endif /* _BMP_H_ */ 78