95 lines
2.7 KiB
C
95 lines
2.7 KiB
C
/* ftfont.h -- Interface definition for Freetype font backend.
|
|
Copyright (C) 2007, 2008, 2009, 2010, 2011
|
|
National Institute of Advanced Industrial Science and Technology (AIST)
|
|
Registration Number H13PRO009
|
|
|
|
This file is part of GNU Emacs.
|
|
|
|
GNU Emacs is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation, either version 3 of the License, or (at
|
|
your option) any later version.
|
|
|
|
GNU Emacs is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>. */
|
|
|
|
|
|
#ifndef EMACS_FTFONT_H
|
|
#define EMACS_FTFONT_H
|
|
|
|
#include <ft2build.h>
|
|
#include FT_FREETYPE_H
|
|
#include FT_SIZES_H
|
|
#include FT_TRUETYPE_TABLES_H
|
|
#ifdef FT_BDF_H
|
|
# include FT_BDF_H
|
|
#endif
|
|
|
|
#ifdef USE_BE_CAIRO
|
|
#include <cairo.h>
|
|
#endif
|
|
|
|
#ifdef HAVE_HARFBUZZ
|
|
#include <hb.h>
|
|
#include <hb-ft.h>
|
|
#endif /* HAVE_HARFBUZZ */
|
|
|
|
#ifdef HAVE_LIBOTF
|
|
# include <otf.h>
|
|
#ifdef HAVE_M17N_FLT
|
|
# include <m17n-flt.h>
|
|
#endif /* HAVE_M17N_FLT */
|
|
#endif /* HAVE_LIBOTF */
|
|
|
|
extern void ftfont_fix_match (FcPattern *, FcPattern *);
|
|
extern void ftfont_add_rendering_parameters (FcPattern *, Lisp_Object);
|
|
extern FcPattern *ftfont_entity_pattern (Lisp_Object, int);
|
|
|
|
/* This struct is shared by the XFT, Freetype, and Cairo font
|
|
backends. Members up to and including 'matrix' are common, the
|
|
rest depend on which backend is in use. */
|
|
struct font_info
|
|
{
|
|
struct font font;
|
|
#ifdef HAVE_LIBOTF
|
|
bool maybe_otf; /* Flag to tell if this may be OTF or not. */
|
|
OTF *otf;
|
|
#endif /* HAVE_LIBOTF */
|
|
FT_Size ft_size;
|
|
int index;
|
|
FT_Matrix matrix;
|
|
#ifdef HAVE_HARFBUZZ
|
|
hb_font_t *hb_font;
|
|
#endif /* HAVE_HARFBUZZ */
|
|
|
|
#if defined (USE_CAIRO) || defined (USE_BE_CAIRO)
|
|
cairo_scaled_font_t *cr_scaled_font;
|
|
/* Scale factor from the bitmap strike metrics in 1/64 pixels, used
|
|
as the hb_position_t value in HarfBuzz, to those in (scaled)
|
|
pixels. The value is 0 for scalable fonts. */
|
|
double bitmap_position_unit;
|
|
/* Font metrics cache. */
|
|
struct font_metrics **metrics;
|
|
short metrics_nrows;
|
|
#else
|
|
/* These are used by the XFT backend. */
|
|
Display *display;
|
|
XftFont *xftfont;
|
|
unsigned x_display_id;
|
|
#endif
|
|
};
|
|
|
|
#if defined USE_CAIRO && defined HAVE_X_WINDOWS
|
|
|
|
extern void ftcrfont_get_default_font_options (struct x_display_info *,
|
|
cairo_font_options_t *);
|
|
|
|
#endif /* USE_CAIRO && HAVE_X_WINDOWS */
|
|
|
|
#endif /* EMACS_FTFONT_H */
|