fonts.c

omap3 linux 2.6 用nocc去除了冗余代码

/*
 * linux/drivers/video/fonts.c -- `Soft' font definitions
 *
 *    Created 1995 by Geert Uytterhoeven
 *    Rewritten 1998 by Martin Mares <[e-mail]>
 *
 *	2001 - Documented with DocBook
 *	- Brad Douglas <[e-mail]>
 *
 * This file is subject to the terms and conditions of the GNU General Public
 * License.  See the file COPYING in the main directory of this archive
 * for more details.
 */

#include <linux/module.h>
#include <linux/types.h>
#include <linux/string.h>
#include <linux/font.h>

#define NO_FONTS

static const struct font_desc *fonts[] = {
#undef NO_FONTS
    &font_vga_8x8,
#undef NO_FONTS
    &font_vga_8x16,
};

#define num_fonts ARRAY_SIZE(fonts)



/**
 *	find_font - find a font
 *	@name: string name of a font
 *
 *	Find a specified font with string name @name.
 *
 *	Returns %NULL if no font found, or a pointer to the
 *	specified font.
 *
 */

const struct font_desc *find_font(const char *name)
{
   unsigned int i;

   for (i = 0; i < num_fonts; i++)
      if (!strcmp(fonts[i]->name, name))
	  return fonts[i];
   return NULL;
}


/**
 *	get_default_font - get default font
 *	@xres: screen size of X
 *	@yres: screen size of Y
 *      @font_w: bit array of supported widths (1 - 32)
 *      @font_h: bit array of supported heights (1 - 32)
 *
 *	Get the default font for a specified screen size.
 *	Dimensions are in pixels.
 *
 *	Returns %NULL if no font is found, or a pointer to the
 *	chosen font.
 *
 */

const struct font_desc *get_default_font(int xres, int yres, u32 font_w,
					 u32 font_h)
{
    int i, c, cc;
    const struct font_desc *f, *g;

    g = NULL;
    cc = -10000;
    for(i=0; i<num_fonts; i++) {
	f = fonts[i];
	c = f->pref;
	if ((yres < 400) == (f->height <= 8))
	    c += 1000;

	if (!(font_w & (1 << (f->width - 1))) ||
	    !(font_w & (1 << (f->height - 1))))
	    c += 1000;

	if (c > cc) {
	    cc = c;
	    g = f;
	}
    }
    return g;
}

EXPORT_SYMBOL(find_font);
EXPORT_SYMBOL(get_default_font);

MODULE_AUTHOR("James Simmons <[e-mail]>");
MODULE_DESCRIPTION("Console Fonts");
MODULE_LICENSE("GPL");