/*
 *  font.h -- `Soft' font definitions
 *
 *  Created 1995 by Geert Uytterhoeven
 *
 *  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.
 */

#ifndef _VIDEO_FONT_H
#define _VIDEO_FONT_H

#include <linux/types.h>

struct font_desc {
    int idx;
    const char *name;
    unsigned int width, height;
    unsigned int charcount;
    const void *data;
    int pref;
};

#define VGA8x8_IDX      0
#define VGA8x16_IDX     1
#define PEARL8x8_IDX    2
#define VGA6x11_IDX     3
#define FONT7x14_IDX    4
#define FONT10x18_IDX   5
#define SUN8x16_IDX     6
#define SUN12x22_IDX    7
#define ACORN8x8_IDX    8
#define MINI4x6_IDX     9
#define FONT6x10_IDX    10
#define TER16x32_IDX    11
#define FONT6x8_IDX     12
#define TER10x18_IDX    13

extern const struct font_desc   font_vga_8x8,
                        font_vga_8x16,
                        font_pearl_8x8,
                        font_vga_6x11,
                        font_7x14,
                        font_10x18,
                        font_sun_8x16,
                        font_sun_12x22,
                        font_acorn_8x8,
                        font_mini_4x6,
                        font_6x10,
                        font_ter_16x32,
                        font_6x8,
                        font_ter_10x18;

/* Find a font with a specific name */

extern const struct font_desc *find_font(const char *name);

/* Get the default font for a specific screen size */

extern const struct font_desc *get_default_font(int xres, int yres,
                                                unsigned long *font_w,
                                                unsigned long *font_h);

/* Max. length for the name of a predefined font */
#define MAX_FONT_NAME   32

/* Extra word getters */
#define REFCOUNT(fd)    (((int *)(fd))[-1])
#define FNTSIZE(fd)     (((int *)(fd))[-2])
#define FNTCHARCNT(fd)  (((int *)(fd))[-3])
#define FNTSUM(fd)      (((int *)(fd))[-4])

#define FONT_EXTRA_WORDS 4

struct font_data {
        unsigned int extra[FONT_EXTRA_WORDS];
        const unsigned char data[];
} __packed;

#endif /* _VIDEO_FONT_H */