bmp_layout.h
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/* (C) Copyright 2002
* Detlev Zundel, DENX Software Engineering, dzu@denx.de.
*
* SPDX-License-Identifier: GPL-2.0+
*/
/************************************************************************/
/* ** Layout of a bmp file */
/************************************************************************/
#ifndef _BMP_H_
#define _BMP_H_
struct __packed bmp_color_table_entry {
__u8 blue;
__u8 green;
__u8 red;
__u8 reserved;
};
/* When accessing these fields, remember that they are stored in little
endian format, so use linux macros, e.g. le32_to_cpu(width) */
struct __packed bmp_header {
/* Header */
char signature[2];
__u32 file_size;
__u32 reserved;
__u32 data_offset;
/* InfoHeader */
__u32 size;
__u32 width;
__u32 height;
__u16 planes;
__u16 bit_count;
__u32 compression;
__u32 image_size;
__u32 x_pixels_per_m;
__u32 y_pixels_per_m;
__u32 colors_used;
__u32 colors_important;
/* ColorTable */
};
struct bmp_image {
struct bmp_header header;
/* We use a zero sized array just as a placeholder for variable
sized array */
struct bmp_color_table_entry color_table[0];
};
/* Data in the bmp_image is aligned to this length */
#define BMP_DATA_ALIGN 4
/* Constants for the compression field */
#define BMP_BI_RGB 0
#define BMP_BI_RLE8 1
#define BMP_BI_RLE4 2
#endif /* _BMP_H_ */