xref: /linux/include/linux/font.h (revision 79790b6818e96c58fe2bffee1b418c16e64e7b80)
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 
39 extern const struct font_desc	font_vga_8x8,
40 			font_vga_8x16,
41 			font_pearl_8x8,
42 			font_vga_6x11,
43 			font_7x14,
44 			font_10x18,
45 			font_sun_8x16,
46 			font_sun_12x22,
47 			font_acorn_8x8,
48 			font_mini_4x6,
49 			font_6x10,
50 			font_ter_16x32,
51 			font_6x8;
52 
53 /* Find a font with a specific name */
54 
55 extern const struct font_desc *find_font(const char *name);
56 
57 /* Get the default font for a specific screen size */
58 
59 extern const struct font_desc *get_default_font(int xres, int yres,
60 						unsigned long *font_w,
61 						unsigned long *font_h);
62 
63 /* Max. length for the name of a predefined font */
64 #define MAX_FONT_NAME	32
65 
66 /* Extra word getters */
67 #define REFCOUNT(fd)	(((int *)(fd))[-1])
68 #define FNTSIZE(fd)	(((int *)(fd))[-2])
69 #define FNTCHARCNT(fd)	(((int *)(fd))[-3])
70 #define FNTSUM(fd)	(((int *)(fd))[-4])
71 
72 #define FONT_EXTRA_WORDS 4
73 
74 struct font_data {
75 	unsigned int extra[FONT_EXTRA_WORDS];
76 	const unsigned char data[];
77 } __packed;
78 
79 #endif /* _VIDEO_FONT_H */
80