/usr/include/allegro/font.h is in liballegro4-dev 2:4.4.2-5.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* \ \ __ \ \ \ \ \ \ \ /'__`\ /'_ `\/\`'__\/ __`\
* \ \ \/\ \ \_\ \_ \_\ \_/\ __//\ \L\ \ \ \//\ \L\ \
* \ \_\ \_\/\____\/\____\ \____\ \____ \ \_\\ \____/
* \/_/\/_/\/____/\/____/\/____/\/___L\ \/_/ \/___/
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*
* Font loading routines.
*
* By Evert Glebbeek.
*
* See readme.txt for copyright information.
*/
#ifndef ALLEGRO_FONT_H
#define ALLEGRO_FONT_H
#include "base.h"
#ifdef __cplusplus
extern "C" {
#endif
typedef struct FONT_GLYPH /* a single monochrome font character */
{
short w, h;
ZERO_SIZE_ARRAY(unsigned char, dat);
} FONT_GLYPH;
struct FONT_VTABLE;
typedef struct FONT
{
void *data;
int height;
struct FONT_VTABLE *vtable;
} FONT;
AL_FUNC(int, font_has_alpha, (FONT *f));
AL_FUNC(void, make_trans_font, (FONT *f));
AL_FUNC(int, is_trans_font, (FONT *f));
AL_FUNC(int, is_color_font, (FONT *f));
AL_FUNC(int, is_mono_font, (FONT *f));
AL_FUNC(int, is_compatible_font, (FONT *f1, FONT *f2));
AL_FUNC(void, register_font_file_type, (AL_CONST char *ext, FONT *(*load)(AL_CONST char *filename, RGB *pal, void *param)));
AL_FUNC(FONT *, load_font, (AL_CONST char *filename, RGB *pal, void *param));
AL_FUNC(FONT *, load_dat_font, (AL_CONST char *filename, RGB *pal, void *param));
AL_FUNC(FONT *, load_bios_font, (AL_CONST char *filename, RGB *pal, void *param));
AL_FUNC(FONT *, load_grx_font, (AL_CONST char *filename, RGB *pal, void *param));
AL_FUNC(FONT *, load_grx_or_bios_font, (AL_CONST char *filename, RGB *pal, void *param));
AL_FUNC(FONT *, load_bitmap_font, (AL_CONST char *fname, RGB *pal, void *param));
AL_FUNC(FONT *, load_txt_font, (AL_CONST char *fname, RGB *pal, void *param));
AL_FUNC(FONT *, grab_font_from_bitmap, (BITMAP *bmp));
AL_FUNC(int, get_font_ranges, (FONT *f));
AL_FUNC(int, get_font_range_begin, (FONT *f, int range));
AL_FUNC(int, get_font_range_end, (FONT *f, int range));
AL_FUNC(FONT *, extract_font_range, (FONT *f, int begin, int end));
AL_FUNC(FONT *, merge_fonts, (FONT *f1, FONT *f2));
AL_FUNC(int, transpose_font, (FONT *f, int drange));
#ifdef __cplusplus
}
#endif
#endif /* ifndef ALLEGRO_FONT_H */
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