62 lines
1.4 KiB
C
62 lines
1.4 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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* SPDX-License-Identifier: GPL-2.0+
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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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