79 lines
2.2 KiB
C
79 lines
2.2 KiB
C
/* sfnt format font driver for GNU Emacs.
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Copyright (C) 2023-2024 Free Software Foundation, Inc.
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This file is part of GNU Emacs.
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GNU Emacs is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or (at
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your option) any later version.
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GNU Emacs is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>. */
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#ifndef _SFNTFONT_H_
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#define _SFNTFONT_H_
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#include "lisp.h"
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#include "frame.h"
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#include "font.h"
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#include "sfnt.h"
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extern int sfnt_enum_font (const char *);
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/* Font driver callbacks. */
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extern Lisp_Object sfntfont_list (struct frame *, Lisp_Object);
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extern Lisp_Object sfntfont_match (struct frame *, Lisp_Object);
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extern Lisp_Object sfntfont_open (struct frame *, Lisp_Object, int);
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extern unsigned int sfntfont_encode_char (struct font *, int);
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extern void sfntfont_text_extents (struct font *, const unsigned int *,
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int, struct font_metrics *);
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extern void sfntfont_close (struct font *);
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extern int sfntfont_draw (struct glyph_string *, int, int,
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int, int, bool);
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extern Lisp_Object sfntfont_list_family (struct frame *);
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extern int sfntfont_get_variation_glyphs (struct font *, int, unsigned[256]);
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/* Initialization functions. */
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typedef void (*sfntfont_put_glyph_proc) (struct glyph_string *, int, int,
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int, int, bool, struct sfnt_raster **,
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int *);
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extern void syms_of_sfntfont (void);
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extern void init_sfntfont (void);
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extern void mark_sfntfont (void);
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extern void init_sfntfont_vendor (Lisp_Object, const struct font_driver *,
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sfntfont_put_glyph_proc);
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/* mmap specific functions. */
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#ifdef HAVE_MMAP
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extern bool sfntfont_detect_sigbus (void *);
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#endif /* HAVE_MMAP */
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/* HarfBuzz specific functions. */
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#ifdef HAVE_HARFBUZZ
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extern hb_font_t *sfntfont_begin_hb_font (struct font *, double *);
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#endif /* HAVE_HARFBUZZ */
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#endif /* _SFNTFONT_H_ */
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