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_TER10x18 58 &font_ter_10x18, 59 #endif 60 #ifdef CONFIG_FONT_TER16x32 61 &font_ter_16x32, 62 #endif 63 #ifdef CONFIG_FONT_6x8 64 &font_6x8, 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 const struct font_desc *find_font(const char *name) 86 { 87 unsigned int i; 88 89 BUILD_BUG_ON(!num_fonts); 90 for (i = 0; i < num_fonts; i++) 91 if (!strcmp(fonts[i]->name, name)) 92 return fonts[i]; 93 return NULL; 94 } 95 EXPORT_SYMBOL(find_font); 96 97 98 /** 99 * get_default_font - get default font 100 * @xres: screen size of X 101 * @yres: screen size of Y 102 * @font_w: bit array of supported widths (1 - FB_MAX_BLIT_WIDTH) 103 * @font_h: bit array of supported heights (1 - FB_MAX_BLIT_HEIGHT) 104 * 105 * Get the default font for a specified screen size. 106 * Dimensions are in pixels. 107 * 108 * font_w or font_h being NULL means all values are supported. 109 * 110 * Returns %NULL if no font is found, or a pointer to the 111 * chosen font. 112 * 113 */ 114 const struct font_desc *get_default_font(int xres, int yres, 115 unsigned long *font_w, 116 unsigned long *font_h) 117 { 118 int i, c, cc, res; 119 const struct font_desc *f, *g; 120 121 g = NULL; 122 cc = -10000; 123 for (i = 0; i < num_fonts; i++) { 124 f = fonts[i]; 125 c = f->pref; 126 #if defined(__mc68000__) 127 #ifdef CONFIG_FONT_PEARL_8x8 128 if (MACH_IS_AMIGA && f->idx == PEARL8x8_IDX) 129 c = 100; 130 #endif 131 #ifdef CONFIG_FONT_6x11 132 if (MACH_IS_MAC && xres < 640 && f->idx == VGA6x11_IDX) 133 c = 100; 134 #endif 135 #endif 136 if ((yres < 400) == (f->height <= 8)) 137 c += 1000; 138 139 /* prefer a bigger font for high resolution */ 140 res = (xres / f->width) * (yres / f->height) / 1000; 141 if (res > 20) 142 c += 20 - res; 143 144 if ((!font_w || test_bit(f->width - 1, font_w)) && 145 (!font_h || test_bit(f->height - 1, font_h))) 146 c += 1000; 147 148 if (c > cc) { 149 cc = c; 150 g = f; 151 } 152 } 153 return g; 154 } 155 EXPORT_SYMBOL(get_default_font); 156 157 MODULE_AUTHOR("James Simmons <jsimmons@users.sf.net>"); 158 MODULE_DESCRIPTION("Console Fonts"); 159 MODULE_LICENSE("GPL"); 160