1 /*
2 * linux/drivers/video/fonts.c -- `Soft' font definitions
3 *
4 * Created 1995 by Geert Uytterhoeven
5 * Rewritten 1998 by Martin Mares <mj@ucw.cz>
6 *
7 * 2001 - Documented with DocBook
8 * - Brad Douglas <brad@neruo.com>
9 *
10 * This file is subject to the terms and conditions of the GNU General Public
11 * License. See the file COPYING in the main directory of this archive
12 * for more details.
13 */
14
15 #include <linux/module.h>
16 #include <linux/types.h>
17 #include <linux/string.h>
18 #if defined(__mc68000__)
19 #include <asm/setup.h>
20 #endif
21 #include <linux/font.h>
22
23 #define NO_FONTS
24
25 static const struct font_desc *fonts[] = {
26 #ifdef CONFIG_FONT_8x8
27 #undef NO_FONTS
28 &font_vga_8x8,
29 #endif
30 #ifdef CONFIG_FONT_8x16
31 #undef NO_FONTS
32 &font_vga_8x16,
33 #endif
34 #ifdef CONFIG_FONT_6x11
35 #undef NO_FONTS
36 &font_vga_6x11,
37 #endif
38 #ifdef CONFIG_FONT_7x14
39 #undef NO_FONTS
40 &font_7x14,
41 #endif
42 #ifdef CONFIG_FONT_SUN8x16
43 #undef NO_FONTS
44 &font_sun_8x16,
45 #endif
46 #ifdef CONFIG_FONT_SUN12x22
47 #undef NO_FONTS
48 &font_sun_12x22,
49 #endif
50 #ifdef CONFIG_FONT_10x18
51 #undef NO_FONTS
52 &font_10x18,
53 #endif
54 #ifdef CONFIG_FONT_ACORN_8x8
55 #undef NO_FONTS
56 &font_acorn_8x8,
57 #endif
58 #ifdef CONFIG_FONT_PEARL_8x8
59 #undef NO_FONTS
60 &font_pearl_8x8,
61 #endif
62 #ifdef CONFIG_FONT_MINI_4x6
63 #undef NO_FONTS
64 &font_mini_4x6,
65 #endif
66 };
67
68 #define num_fonts ARRAY_SIZE(fonts)
69
70 #ifdef NO_FONTS
71 #error No fonts configured.
72 #endif
73
74
75 /**
76 * find_font - find a font
77 * @name: string name of a font
78 *
79 * Find a specified font with string name @name.
80 *
81 * Returns %NULL if no font found, or a pointer to the
82 * specified font.
83 *
84 */
85
find_font(const char * name)86 const struct font_desc *find_font(const char *name)
87 {
88 unsigned int i;
89
90 for (i = 0; i < num_fonts; i++)
91 if (!strcmp(fonts[i]->name, name))
92 return fonts[i];
93 return NULL;
94 }
95
96
97 /**
98 * get_default_font - get default font
99 * @xres: screen size of X
100 * @yres: screen size of Y
101 * @font_w: bit array of supported widths (1 - 32)
102 * @font_h: bit array of supported heights (1 - 32)
103 *
104 * Get the default font for a specified screen size.
105 * Dimensions are in pixels.
106 *
107 * Returns %NULL if no font is found, or a pointer to the
108 * chosen font.
109 *
110 */
111
get_default_font(int xres,int yres,u32 font_w,u32 font_h)112 const struct font_desc *get_default_font(int xres, int yres, u32 font_w,
113 u32 font_h)
114 {
115 int i, c, cc;
116 const struct font_desc *f, *g;
117
118 g = NULL;
119 cc = -10000;
120 for(i=0; i<num_fonts; i++) {
121 f = fonts[i];
122 c = f->pref;
123 #if defined(__mc68000__)
124 #ifdef CONFIG_FONT_PEARL_8x8
125 if (MACH_IS_AMIGA && f->idx == PEARL8x8_IDX)
126 c = 100;
127 #endif
128 #ifdef CONFIG_FONT_6x11
129 if (MACH_IS_MAC && xres < 640 && f->idx == VGA6x11_IDX)
130 c = 100;
131 #endif
132 #endif
133 if ((yres < 400) == (f->height <= 8))
134 c += 1000;
135
136 if ((font_w & (1 << (f->width - 1))) &&
137 (font_h & (1 << (f->height - 1))))
138 c += 1000;
139
140 if (c > cc) {
141 cc = c;
142 g = f;
143 }
144 }
145 return g;
146 }
147
148 EXPORT_SYMBOL(find_font);
149 EXPORT_SYMBOL(get_default_font);
150
151 MODULE_AUTHOR("James Simmons <jsimmons@users.sf.net>");
152 MODULE_DESCRIPTION("Console Fonts");
153 MODULE_LICENSE("GPL");
154