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153 lines
3.0 KiB
153 lines
3.0 KiB
/* |
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* `Soft' font definitions |
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* |
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* Created 1995 by Geert Uytterhoeven |
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* Rewritten 1998 by Martin Mares <[email protected]> |
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* |
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* 2001 - Documented with DocBook |
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* - Brad Douglas <[email protected]> |
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* |
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* This file is subject to the terms and conditions of the GNU General Public |
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* License. See the file COPYING in the main directory of this archive |
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* for more details. |
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*/ |
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#include <linux/module.h> |
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#include <linux/types.h> |
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#include <linux/string.h> |
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#if defined(__mc68000__) |
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#include <asm/setup.h> |
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#endif |
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#include <linux/font.h> |
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static const struct font_desc *fonts[] = { |
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#ifdef CONFIG_FONT_8x8 |
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&font_vga_8x8, |
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#endif |
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#ifdef CONFIG_FONT_8x16 |
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&font_vga_8x16, |
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#endif |
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#ifdef CONFIG_FONT_6x11 |
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&font_vga_6x11, |
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#endif |
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#ifdef CONFIG_FONT_7x14 |
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&font_7x14, |
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#endif |
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#ifdef CONFIG_FONT_SUN8x16 |
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&font_sun_8x16, |
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#endif |
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#ifdef CONFIG_FONT_SUN12x22 |
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&font_sun_12x22, |
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#endif |
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#ifdef CONFIG_FONT_10x18 |
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&font_10x18, |
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#endif |
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#ifdef CONFIG_FONT_ACORN_8x8 |
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&font_acorn_8x8, |
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#endif |
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#ifdef CONFIG_FONT_PEARL_8x8 |
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&font_pearl_8x8, |
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#endif |
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#ifdef CONFIG_FONT_MINI_4x6 |
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&font_mini_4x6, |
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#endif |
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#ifdef CONFIG_FONT_6x10 |
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&font_6x10, |
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#endif |
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#ifdef CONFIG_FONT_TER16x32 |
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&font_ter_16x32, |
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#endif |
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#ifdef CONFIG_FONT_6x8 |
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&font_6x8, |
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#endif |
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}; |
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#define num_fonts ARRAY_SIZE(fonts) |
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#ifdef NO_FONTS |
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#error No fonts configured. |
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#endif |
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/** |
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* find_font - find a font |
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* @name: string name of a font |
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* |
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* Find a specified font with string name @name. |
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* |
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* Returns %NULL if no font found, or a pointer to the |
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* specified font. |
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* |
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*/ |
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const struct font_desc *find_font(const char *name) |
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{ |
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unsigned int i; |
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BUILD_BUG_ON(!num_fonts); |
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for (i = 0; i < num_fonts; i++) |
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if (!strcmp(fonts[i]->name, name)) |
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return fonts[i]; |
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return NULL; |
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} |
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EXPORT_SYMBOL(find_font); |
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/** |
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* get_default_font - get default font |
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* @xres: screen size of X |
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* @yres: screen size of Y |
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* @font_w: bit array of supported widths (1 - 32) |
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* @font_h: bit array of supported heights (1 - 32) |
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* |
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* Get the default font for a specified screen size. |
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* Dimensions are in pixels. |
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* |
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* Returns %NULL if no font is found, or a pointer to the |
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* chosen font. |
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* |
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*/ |
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const struct font_desc *get_default_font(int xres, int yres, u32 font_w, |
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u32 font_h) |
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{ |
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int i, c, cc, res; |
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const struct font_desc *f, *g; |
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g = NULL; |
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cc = -10000; |
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for (i = 0; i < num_fonts; i++) { |
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f = fonts[i]; |
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c = f->pref; |
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#if defined(__mc68000__) |
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#ifdef CONFIG_FONT_PEARL_8x8 |
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if (MACH_IS_AMIGA && f->idx == PEARL8x8_IDX) |
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c = 100; |
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#endif |
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#ifdef CONFIG_FONT_6x11 |
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if (MACH_IS_MAC && xres < 640 && f->idx == VGA6x11_IDX) |
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c = 100; |
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#endif |
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#endif |
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if ((yres < 400) == (f->height <= 8)) |
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c += 1000; |
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/* prefer a bigger font for high resolution */ |
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res = (xres / f->width) * (yres / f->height) / 1000; |
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if (res > 20) |
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c += 20 - res; |
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if ((font_w & (1 << (f->width - 1))) && |
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(font_h & (1 << (f->height - 1)))) |
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c += 1000; |
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if (c > cc) { |
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cc = c; |
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g = f; |
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} |
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} |
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return g; |
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} |
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EXPORT_SYMBOL(get_default_font); |
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MODULE_AUTHOR("James Simmons <[email protected]>"); |
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MODULE_DESCRIPTION("Console Fonts"); |
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MODULE_LICENSE("GPL");
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