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78 lines
2.2 KiB
C
78 lines
2.2 KiB
C
/* (C) Copyright 2002
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* Detlev Zundel, DENX Software Engineering, dzu@denx.de.
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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/************************************************************************/
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/* ** Layout of a bmp file */
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/************************************************************************/
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#ifndef _BMP_H_
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#define _BMP_H_
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typedef struct bmp_color_table_entry {
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__u8 blue;
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__u8 green;
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__u8 red;
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__u8 reserved;
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} __attribute__((packed)) bmp_color_table_entry_t;
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/* When accessing these fields, remember that they are stored in little
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endian format, so use linux macros, e.g. le32_to_cpu(width) */
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typedef struct bmp_header {
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/* Header */
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char signature[2];
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__u32 file_size;
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__u32 reserved;
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__u32 data_offset;
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/* InfoHeader */
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__u32 size;
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__u32 width;
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__u32 height;
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__u16 planes;
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__u16 bit_count;
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__u32 compression;
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__u32 image_size;
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__u32 x_pixels_per_m;
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__u32 y_pixels_per_m;
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__u32 colors_used;
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__u32 colors_important;
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/* ColorTable */
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} __attribute__((packed)) bmp_header_t;
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typedef struct bmp_image {
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bmp_header_t header;
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/* We use a zero sized array just as a placeholder for variable
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sized array */
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bmp_color_table_entry_t color_table[0];
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} bmp_image_t;
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/* Data in the bmp_image is aligned to this length */
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#define BMP_DATA_ALIGN 4
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/* Constants for the compression field */
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#define BMP_BI_RGB 0
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#define BMP_BI_RLE8 1
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#define BMP_BI_RLE4 2
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#endif /* _BMP_H_ */
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