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/*
* Copyright (c) 2006-2023, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2023-02-25 GuEe-GUI the first version
*/
#ifndef __PSF_H__
#define __PSF_H__
#include <rtthread.h>
#define PSF1_MAGIC0 0x36
#define PSF1_MAGIC1 0x04
#define PSF1_MODE512 0x01
#define PSF1_MODEHASTAB 0x02
#define PSF1_MODEHASSEQ 0x04
#define PSF1_MAXMODE 0x05
#define PSF1_SEPARATOR 0xffff
#define PSF1_STARTSEQ 0xfffe
struct psf1_header
{
rt_uint8_t magic[2]; /* Magic number */
rt_uint8_t mode; /* PSF font mode */
rt_uint8_t charsize; /* Character size */
};
#define PSF2_MAGIC0 0x72
#define PSF2_MAGIC1 0xb5
#define PSF2_MAGIC2 0x4a
#define PSF2_MAGIC3 0x86
/* bits used in flags */
#define PSF2_HAS_UNICODE_TABLE 0x01
/* max version recognized so far */
#define PSF2_MAXVERSION 0
/* UTF8 separators */
#define PSF2_SEPARATOR 0xff
#define PSF2_STARTSEQ 0xfe
struct psf2_header
{
rt_uint8_t magic[4];
rt_uint32_t version;
rt_uint32_t headersize; /* offset of bitmaps in file */
rt_uint32_t flags;
rt_uint32_t length; /* number of glyphs */
rt_uint32_t charsize; /* number of bytes for each character, charsize = height * ((width + 7) / 8) */
rt_uint32_t height, width; /* max dimensions of glyphs */
};
enum psf_type
{
PSF_TYPE_1,
PSF_TYPE_2,
PSF_TYPE_UNKNOW,
};
struct psf_font
{
union
{
const rt_uint8_t *raw_data;
struct psf1_header *header1;
struct psf2_header *header2;
};
const rt_uint8_t *font_map;
const rt_uint8_t *font_data;
enum psf_type type;
rt_uint32_t count; /* fonts count */
rt_uint32_t size;
rt_uint32_t height;
rt_uint32_t width;
rt_uint32_t glyph; /* height * width */
};
rt_err_t psf_initialize(const void *psf_data, struct psf_font *out_psf);
rt_err_t psf_parse(struct psf_font *psf, const rt_uint8_t *font_data,
rt_uint8_t *tmpglyph, rt_uint32_t color_size,
rt_uint32_t foreground, rt_uint32_t background);
#endif /* __PSF_H__ */
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