font.h

 1/*
 2 *  font.h -- `Soft' font definitions
 3 *
 4 *  Created 1995 by Geert Uytterhoeven
 5 *
 6 *  This file is subject to the terms and conditions of the GNU General Public
 7 *  License.  See the file COPYING in the main directory of this archive
 8 *  for more details.
 9 */
10
11#ifndef _VIDEO_FONT_H
12#define _VIDEO_FONT_H
13
14#include <linux/types.h>
15
16struct font_desc {
17    int idx;
18    const char *name;
19    unsigned int width, height;
20    unsigned int charcount;
21    const void *data;
22    int pref;
23};
24
25#define VGA8x8_IDX	0
26#define VGA8x16_IDX	1
27#define PEARL8x8_IDX	2
28#define VGA6x11_IDX	3
29#define FONT7x14_IDX	4
30#define	FONT10x18_IDX	5
31#define SUN8x16_IDX	6
32#define SUN12x22_IDX	7
33#define ACORN8x8_IDX	8
34#define	MINI4x6_IDX	9
35#define FONT6x10_IDX	10
36#define TER16x32_IDX	11
37#define FONT6x8_IDX	12
38#define TER10x18_IDX	13
39
40extern const struct font_desc	font_vga_8x8,
41			font_vga_8x16,
42			font_pearl_8x8,
43			font_vga_6x11,
44			font_7x14,
45			font_10x18,
46			font_sun_8x16,
47			font_sun_12x22,
48			font_acorn_8x8,
49			font_mini_4x6,
50			font_6x10,
51			font_ter_16x32,
52			font_6x8,
53			font_ter_10x18;
54
55/* Find a font with a specific name */
56
57extern const struct font_desc *find_font(const char *name);
58
59/* Get the default font for a specific screen size */
60
61extern const struct font_desc *get_default_font(int xres, int yres,
62						unsigned long *font_w,
63						unsigned long *font_h);
64
65/* Max. length for the name of a predefined font */
66#define MAX_FONT_NAME	32
67
68/* Extra word getters */
69#define REFCOUNT(fd)	(((int *)(fd))[-1])
70#define FNTSIZE(fd)	(((int *)(fd))[-2])
71#define FNTCHARCNT(fd)	(((int *)(fd))[-3])
72#define FNTSUM(fd)	(((int *)(fd))[-4])
73
74#define FONT_EXTRA_WORDS 4
75
76struct font_data {
77	unsigned int extra[FONT_EXTRA_WORDS];
78	const unsigned char data[];
79} __packed;
80
81#endif /* _VIDEO_FONT_H */