source/texk/web2c/luatexdir/luafontloader/fontforge/fontforge/sfd1.h

   1 /* Copyright (C) 2000-2008 by George Williams */
   2 /*
   3  * Redistribution and use in source and binary forms, with or without
   4  * modification, are permitted provided that the following conditions are met:
   5
   6  * Redistributions of source code must retain the above copyright notice, this
   7  * list of conditions and the following disclaimer.
   8
   9  * Redistributions in binary form must reproduce the above copyright notice,
  10  * this list of conditions and the following disclaimer in the documentation
  11  * and/or other materials provided with the distribution.
  12
  13  * The name of the author may not be used to endorse or promote products
  14  * derived from this software without specific prior written permission.
  15
  16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
  17  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  18  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
  19  * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  20  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  21  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
  22  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  23  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
  24  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
  25  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  26  */
  27 #ifndef _SFD1_H
  28 #define _SFD1_H
  29 /* This file contains the data structures needed to read in an old sfd file */
  30 /* features and lookups and scripts are handled differently. That means that */
  31 /* the KernPair, KernClass, PST, FPST, AnchorClass, StateMachine data structures */
  32 /* are organized differently. Also we've got a script language list which */
  33 /* doesn't exist in the new format and we don't have OTLookup */
  34
  35 #include "splinefont.h"
  36
  37 #define SLI_UNKNOWN             0xffff
  38 #define SLI_NESTED              0xfffe
  39
  40 typedef struct anchorclass1 {
  41     AnchorClass ac;
  42     uint32 feature_tag;
  43     uint16 script_lang_index;
  44     uint16 flags;
  45     uint16 merge_with;
  46     uint8 has_bases;
  47     uint8 has_ligatures;
  48 } AnchorClass1;
  49
  50 typedef struct kernpair1 {
  51     KernPair kp;
  52     uint16 sli, flags;
  53 } KernPair1;
  54
  55 typedef struct kernclass1 {
  56     KernClass kc;
  57     uint16 sli;
  58     uint16 flags;
  59 } KernClass1;
  60
  61 typedef struct generic_pst1 {
  62     PST pst;
  63     uint16 flags;
  64     uint16 script_lang_index;           /* 0xffff means none */
  65     uint32 tag;
  66 } PST1;
  67
  68 typedef struct generic_fpst1 {
  69     FPST fpst;
  70     uint16 script_lang_index;
  71     uint16 flags;
  72     uint32 tag;
  73 } FPST1;
  74
  75 typedef struct splinefont1 {
  76     SplineFont sf;
  77
  78     struct table_ordering { uint32 table_tag; uint32 *ordered_features; struct table_ordering *next; } *orders;
  79
  80     /* Any GPOS/GSUB entry (PST, AnchorClass, kerns, FPST */
  81     /*  Has an entry saying what scripts/languages it should appear it */
  82     /*  Things like fractions will appear in almost all possible script/lang */
  83     /*  combinations, while alphabetic ligatures will only live in one script */
  84     /* Rather than store the complete list of possibilities in each PST we */
  85     /*  store all choices used here, and just store an index into this list */
  86     /*  in the PST. All lists are terminated by a 0 entry */
  87     struct script_record {
  88         uint32 script;
  89         uint32 *langs;
  90     } **script_lang;
  91     int16 sli_cnt;
  92
  93     struct gentagtype {
  94         uint16 tt_cur, tt_max;
  95         struct tagtype {
  96             enum possub_type type;
  97             uint32 tag;
  98         } *tagtype;
  99     } gentags;
 100 } SplineFont1;
 101
 102 extern int SFFindBiggestScriptLangIndex(SplineFont *_sf,uint32 script,uint32 lang);
 103 extern int SFAddScriptIndex(SplineFont1 *sf,uint32 *scripts,int scnt);
 104 extern void SFD_AssignLookups(SplineFont1 *sf);
 105 #endif          /* _SFD1_H */