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 #ifdef CONFIG_FONT_6x8 61 &font_6x8, 62 #endif 63 }; 64 65 #define num_fonts ARRAY_SIZE(fonts) 66 67 #ifdef NO_FONTS 68 #error No fonts configured. 69 #endif 70 71 72 /** 73 * find_font - find a font 74 * @name: string name of a font 75 * 76 * Find a specified font with string name @name. 77 * 78 * Returns %NULL if no font found, or a pointer to the 79 * specified font. 80 * 81 */ find_font(const char * name)82 const struct font_desc *find_font(const char *name) 83 { 84 unsigned int i; 85 86 BUILD_BUG_ON(!num_fonts); 87 for (i = 0; i < num_fonts; i++) 88 if (!strcmp(fonts[i]->name, name)) 89 return fonts[i]; 90 return NULL; 91 } 92 EXPORT_SYMBOL(find_font); 93 94 95 /** 96 * get_default_font - get default font 97 * @xres: screen size of X 98 * @yres: screen size of Y 99 * @font_w: bit array of supported widths (1 - FB_MAX_BLIT_WIDTH) 100 * @font_h: bit array of supported heights (1 - FB_MAX_BLIT_HEIGHT) 101 * 102 * Get the default font for a specified screen size. 103 * Dimensions are in pixels. 104 * 105 * font_w or font_h being NULL means all values are supported. 106 * 107 * Returns %NULL if no font is found, or a pointer to the 108 * chosen font. 109 * 110 */ get_default_font(int xres,int yres,unsigned long * font_w,unsigned long * font_h)111 const struct font_desc *get_default_font(int xres, int yres, 112 unsigned long *font_w, 113 unsigned long *font_h) 114 { 115 int i, c, cc, res; 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 /* prefer a bigger font for high resolution */ 137 res = (xres / f->width) * (yres / f->height) / 1000; 138 if (res > 20) 139 c += 20 - res; 140 141 if ((!font_w || test_bit(f->width - 1, font_w)) && 142 (!font_h || test_bit(f->height - 1, font_h))) 143 c += 1000; 144 145 if (c > cc) { 146 cc = c; 147 g = f; 148 } 149 } 150 return g; 151 } 152 EXPORT_SYMBOL(get_default_font); 153 154 MODULE_AUTHOR("James Simmons <jsimmons@users.sf.net>"); 155 MODULE_DESCRIPTION("Console Fonts"); 156 MODULE_LICENSE("GPL"); 157