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 23static 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 */ 82const 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} 92EXPORT_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 - 32) 100 * @font_h: bit array of supported heights (1 - 32) 101 * 102 * Get the default font for a specified screen size. 103 * Dimensions are in pixels. 104 * 105 * Returns %NULL if no font is found, or a pointer to the 106 * chosen font. 107 * 108 */ 109const struct font_desc *get_default_font(int xres, int yres, u32 font_w, 110 u32 font_h) 111{ 112 int i, c, cc, res; 113 const struct font_desc *f, *g; 114 115 g = NULL; 116 cc = -10000; 117 for (i = 0; i < num_fonts; i++) { 118 f = fonts[i]; 119 c = f->pref; 120#if defined(__mc68000__) 121#ifdef CONFIG_FONT_PEARL_8x8 122 if (MACH_IS_AMIGA && f->idx == PEARL8x8_IDX) 123 c = 100; 124#endif 125#ifdef CONFIG_FONT_6x11 126 if (MACH_IS_MAC && xres < 640 && f->idx == VGA6x11_IDX) 127 c = 100; 128#endif 129#endif 130 if ((yres < 400) == (f->height <= 8)) 131 c += 1000; 132 133 /* prefer a bigger font for high resolution */ 134 res = (xres / f->width) * (yres / f->height) / 1000; 135 if (res > 20) 136 c += 20 - res; 137 138 if ((font_w & (1U << (f->width - 1))) && 139 (font_h & (1U << (f->height - 1)))) 140 c += 1000; 141 142 if (c > cc) { 143 cc = c; 144 g = f; 145 } 146 } 147 return g; 148} 149EXPORT_SYMBOL(get_default_font); 150 151MODULE_AUTHOR("James Simmons <jsimmons@users.sf.net>"); 152MODULE_DESCRIPTION("Console Fonts"); 153MODULE_LICENSE("GPL"); 154