source/texk/web2c/luatexdir/font/tt_glyf.h

   1 /* tt_glyf.h
   2
   3    Copyright 2002 by Jin-Hwan Cho and Shunsaku Hirata,
   4    the dvipdfmx project team <dvipdfmx@project.ktug.or.kr>
   5    Copyright 2006-2008 Taco Hoekwater <taco@luatex.org>
   6
   7    This file is part of LuaTeX.
   8
   9    LuaTeX is free software; you can redistribute it and/or modify it under
  10    the terms of the GNU General Public License as published by the Free
  11    Software Foundation; either version 2 of the License, or (at your
  12    option) any later version.
  13
  14    LuaTeX is distributed in the hope that it will be useful, but WITHOUT
  15    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  16    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
  17    License for more details.
  18
  19    You should have received a copy of the GNU General Public License along
  20    with LuaTeX; if not, see <http://www.gnu.org/licenses/>. */
  21
  22
  23 #ifndef _TT_GLYF_H_
  24 #  define _TT_GLYF_H_
  25
  26 struct tt_glyph_desc {
  27     USHORT gid;
  28     USHORT ogid;                /* GID in original font */
  29     USHORT advw, advh;
  30     SHORT lsb, tsb;
  31     SHORT llx, lly, urx, ury;
  32     ULONG length;
  33     BYTE *data;
  34 };
  35
  36 struct tt_glyphs {
  37     USHORT num_glyphs;
  38     USHORT max_glyphs;
  39     USHORT last_gid;
  40     USHORT emsize;
  41     USHORT dw;                  /* optimal value for DW */
  42     USHORT default_advh;        /* default value */
  43     SHORT default_tsb;          /* default value */
  44     struct tt_glyph_desc *gd;
  45     unsigned char *used_slot;
  46 };
  47
  48 extern struct tt_glyphs *tt_build_init(void);
  49 extern void tt_build_finish(struct tt_glyphs *g);
  50
  51 extern USHORT tt_add_glyph(struct tt_glyphs *g, USHORT gid, USHORT new_gid);
  52 extern USHORT tt_get_index(struct tt_glyphs *g, USHORT gid);
  53 extern USHORT tt_find_glyph(struct tt_glyphs *g, USHORT gid);
  54
  55 extern int tt_build_tables(sfnt * sfont, struct tt_glyphs *g);
  56 extern int tt_get_metrics(sfnt * sfont, struct tt_glyphs *g);
  57
  58 #endif                          /* _TT_GLYF_H_ */