diff options
author | Karl Berry <karl@freefriends.org> | 2021-02-25 19:22:25 +0000 |
---|---|---|
committer | Karl Berry <karl@freefriends.org> | 2021-02-25 19:22:25 +0000 |
commit | ad547a6b5986815fda458221149728d9d9ab1d87 (patch) | |
tree | 16296910eb3eca724371474ea9aea3994dc69614 /Build/source/texk/kpathsea/tex-glyph.h | |
parent | 947b43de3dd21d58ccc2ffadefc4441ea1c2a813 (diff) |
restore Build,TODO from r57911
git-svn-id: svn://tug.org/texlive/trunk@57915 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Build/source/texk/kpathsea/tex-glyph.h')
-rw-r--r-- | Build/source/texk/kpathsea/tex-glyph.h | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/Build/source/texk/kpathsea/tex-glyph.h b/Build/source/texk/kpathsea/tex-glyph.h new file mode 100644 index 00000000000..ac3954bd3b4 --- /dev/null +++ b/Build/source/texk/kpathsea/tex-glyph.h @@ -0,0 +1,99 @@ +/* tex-glyph.h: look for a TeX glyph font (GF or PK). + + Copyright 1993, 2008, 2009, 2011, 2018 Karl Berry. + Copyright 1999, 2005 Olaf Weber. + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + This library 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with this library; if not, see <http://www.gnu.org/licenses/>. */ + +#ifndef KPATHSEA_TEX_GLYPH_H +#define KPATHSEA_TEX_GLYPH_H + +#include <kpathsea/tex-file.h> + + +#ifdef __cplusplus +extern "C" { +#endif + +/* This type describes the origin of a glyph font. */ + +typedef enum +{ + kpse_glyph_source_normal, /* the searched-for font: already existed */ + kpse_glyph_source_alias, /* : was an alias for an existing file */ + kpse_glyph_source_maketex, /* : was created on the fly */ + kpse_glyph_source_fallback_res, /* : found at fallback resolutions */ + kpse_glyph_source_fallback /* : wasn't found, but the fallback font was */ +} kpse_glyph_source_type; + + +typedef struct +{ + const_string name; /* font name found */ + unsigned dpi; /* size found, for glyphs */ + kpse_file_format_type format; /* glyph format found */ + kpse_glyph_source_type source; /* where we found it */ +} kpse_glyph_file_type; + +#define KPSE_GLYPH_FILE_NAME(f) ((f).name) +#define KPSE_GLYPH_FILE_DPI(f) ((f).dpi) +#define KPSE_GLYPH_FILE_FORMAT(f) ((f).format) +#define KPSE_GLYPH_FILE_SOURCE(f) ((f).source) + + +/* Search first for the font named FONT_NAME at resolution DPI in the + glyph format FORMAT (see `try_size' for details of format searching). + Then try resolutions within KPSE_BITMAP_TOLERANCE of DPI. Then if + FONT_NAME is an alias defined in a texfonts.map do all the above for + its real name. If not an alias, try creating it on the fly with + mktexpk. Then try the resolutions in `kpse_fallback_sizes', then + within the tolerance of each of those. Then try the above for + kpse_fallback_name. Then fail. Return either the filename found, or + NULL. Also return information about the file found in + *GLYPH_FILE. */ +extern KPSEDLL string kpathsea_find_glyph (kpathsea kpse, + const_string font_name, unsigned dpi, + kpse_file_format_type format, + kpse_glyph_file_type *glyph_file); + + +/* Defines how far away a pixel file can be found from its stated size. + The DVI standard says any resolution within 0.2% of the stated size + is ok, but we are more forgiving. */ +#define KPSE_BITMAP_TOLERANCE(r) ((r) / 500.0 + 1) + +/* Check whether DPI1 is within KPSE_BITMAP_TOLERANCE of DPI2. */ +extern KPSEDLL boolean kpathsea_bitmap_tolerance (kpathsea kpse, + double dpi1, double dpi2); + + +#if defined (KPSE_COMPAT_API) +extern KPSEDLL string kpse_find_glyph (const_string font_name, unsigned dpi, + kpse_file_format_type format, + kpse_glyph_file_type *glyph_file); + +/* Look for a specific format only. */ +#define kpse_find_pk(font_name, dpi, glyph_file) \ + kpse_find_glyph (font_name, dpi, kpse_pk_format, glyph_file) +#define kpse_find_gf(font_name, dpi, glyph_file) \ + kpse_find_glyph (font_name, dpi, kpse_gf_format, glyph_file) + +extern KPSEDLL boolean kpse_bitmap_tolerance (double dpi1, double dpi2); +#endif + +#ifdef __cplusplus +} +#endif + +#endif /* not KPATHSEA_TEX_GLYPH_H */ |