xref: /linux/include/linux/font.h (revision 0d1d44032f7b8b9edb14e82315fdf504740940c1)
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 
16 struct 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 
40 extern 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 
57 extern const struct font_desc *find_font(const char *name);
58 
59 /* Get the default font for a specific screen size */
60 
61 extern 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 
76 struct font_data {
77 	unsigned int extra[FONT_EXTRA_WORDS];
78 	const unsigned char data[];
79 } __packed;
80 
81 #endif /* _VIDEO_FONT_H */
82