1 /* 2 * `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 static const struct font_desc *fonts[] = { 24 #ifdef CONFIG_FONT_8x8 25 &font_vga_8x8, 26 #endif 27 #ifdef CONFIG_FONT_8x16 28 &font_vga_8x16, 29 #endif 30 #ifdef CONFIG_FONT_6x11 31 &font_vga_6x11, 32 #endif 33 #ifdef CONFIG_FONT_7x14 34 &font_7x14, 35 #endif 36 #ifdef CONFIG_FONT_SUN8x16 37 &font_sun_8x16, 38 #endif 39 #ifdef CONFIG_FONT_SUN12x22 40 &font_sun_12x22, 41 #endif 42 #ifdef CONFIG_FONT_10x18 43 &font_10x18, 44 #endif 45 #ifdef CONFIG_FONT_ACORN_8x8 46 &font_acorn_8x8, 47 #endif 48 #ifdef CONFIG_FONT_PEARL_8x8 49 &font_pearl_8x8, 50 #endif 51 #ifdef CONFIG_FONT_MINI_4x6 52 &font_mini_4x6, 53 #endif 54 #ifdef CONFIG_FONT_6x10 55 &font_6x10, 56 #endif 57 #ifdef CONFIG_FONT_TER16x32 58 &font_ter_16x32, 59 #endif 60 }; 61 62 #define num_fonts ARRAY_SIZE(fonts) 63 64 #ifdef NO_FONTS 65 #error No fonts configured. 66 #endif 67 68 69 /** 70 * find_font - find a font 71 * @name: string name of a font 72 * 73 * Find a specified font with string name @name. 74 * 75 * Returns %NULL if no font found, or a pointer to the 76 * specified font. 77 * 78 */ 79 const struct font_desc *find_font(const char *name) 80 { 81 unsigned int i; 82 83 BUILD_BUG_ON(!num_fonts); 84 for (i = 0; i < num_fonts; i++) 85 if (!strcmp(fonts[i]->name, name)) 86 return fonts[i]; 87 return NULL; 88 } 89 EXPORT_SYMBOL(find_font); 90 91 92 /** 93 * get_default_font - get default font 94 * @xres: screen size of X 95 * @yres: screen size of Y 96 * @font_w: bit array of supported widths (1 - 32) 97 * @font_h: bit array of supported heights (1 - 32) 98 * 99 * Get the default font for a specified screen size. 100 * Dimensions are in pixels. 101 * 102 * Returns %NULL if no font is found, or a pointer to the 103 * chosen font. 104 * 105 */ 106 const struct font_desc *get_default_font(int xres, int yres, u32 font_w, 107 u32 font_h) 108 { 109 int i, c, cc, res; 110 const struct font_desc *f, *g; 111 112 g = NULL; 113 cc = -10000; 114 for (i = 0; i < num_fonts; i++) { 115 f = fonts[i]; 116 c = f->pref; 117 #if defined(__mc68000__) 118 #ifdef CONFIG_FONT_PEARL_8x8 119 if (MACH_IS_AMIGA && f->idx == PEARL8x8_IDX) 120 c = 100; 121 #endif 122 #ifdef CONFIG_FONT_6x11 123 if (MACH_IS_MAC && xres < 640 && f->idx == VGA6x11_IDX) 124 c = 100; 125 #endif 126 #endif 127 if ((yres < 400) == (f->height <= 8)) 128 c += 1000; 129 130 /* prefer a bigger font for high resolution */ 131 res = (xres / f->width) * (yres / f->height) / 1000; 132 if (res > 20) 133 c += 20 - res; 134 135 if ((font_w & (1 << (f->width - 1))) && 136 (font_h & (1 << (f->height - 1)))) 137 c += 1000; 138 139 if (c > cc) { 140 cc = c; 141 g = f; 142 } 143 } 144 return g; 145 } 146 EXPORT_SYMBOL(get_default_font); 147 148 MODULE_AUTHOR("James Simmons <jsimmons@users.sf.net>"); 149 MODULE_DESCRIPTION("Console Fonts"); 150 MODULE_LICENSE("GPL"); 151