source/texk/web2c/luatexdir/luafontloader/fontforge/fontforge/psfont.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 _PSFONT_H_
  28 #define _PSFONT_H_
  29
  30 #include "splinefont.h"
  31
  32 /* pfb section headers.
  33   There seem to be three and a half of them. the first is a the start of the
  34    file and is 6 bytes long "\200\001x\005\000\000", the second is right after
  35    the newline after eexec and is 6 bytes "\200\002I\224\000\000", the third
  36    is right before the zeros (after the encoded data) and is "\200\001\024\002\000\000"
  37    the last is at the end of file and is only two bytes "\200\003"
  38   I think that the \200 byte indicates a header, the next byte is 1 for ascii,
  39    2 for binary and 3 for eof, then next 4 bytes are the length (not present
  40    for eof headers) with the first byte the least significant.
  41 */
  42
  43 struct charprocs {
  44     int cnt, next;
  45     char **keys;
  46     SplineChar **values;
  47 };
  48
  49 struct fontinfo {
  50     char *familyname;
  51     char *fullname;
  52     char *notice;
  53     char *weight;
  54     char *version;
  55     real italicangle;
  56     unsigned int isfixedpitch:1;
  57     real underlineposition;
  58     real underlinethickness;
  59     int em, ascent, descent;    /* Generated by Fontographer (and us) */
  60     int fstype;                 /* 2=>no embedding, 4=>print, 8=>edit */
  61     /* Multiple master */
  62     char *blenddesignpositions;
  63     char *blenddesignmap;
  64     char *blendaxistypes;
  65 };
  66
  67 struct private {
  68     struct psdict *private;
  69     struct pschars *subrs;      /* (optional, required if othersubrs is present) */
  70                         /* 0-2 part of Flex, 3 hint replacement, 4 and up for charstrings */
  71     int leniv;                  /* (optional) must be 4 for old interpreters (number of rand chars at start of charstrings entries) */
  72 #if 0
  73     int bluefuzz;               /* (optional) (expand bluezones by this much, def=1) */
  74     real bluescale;             /* (optional) if the current pointsize in pixels is less than this value then do overshoot hinting */
  75     int blueshift;              /* (optional) */
  76     real bluevalues[14];        /* <=7 pairs of integers, first less than second, (may be empty) */
  77                         /* first pair is baseline overshoots, other pairs above baseline */
  78     real expansionfactor;       /* (optional) only for languagegroup==1 (CJK) */
  79     real familyblues[14];       /* (optional) bluevalues for family, can override local entry at small pointsizes */
  80     real familyotherblues[10];/* (optional) otherblues for family */
  81     unsigned int forcebold:1;   /* (optional) */
  82     int languagegroup;          /* (optional) (0=>latin, greek, cyril, etc.), (1=>CJK)*/
  83     int leniv;                  /* (optional) must be 4 for old interpreters (number of rand chars at start of charstrings entries) */
  84     char *minfeature;           /* obsolete, required must be {16 16} */
  85     char *nd;                   /* "noaccess def" (may also be named "|-") */
  86     char *np;                   /* "noaccess put" (may also be named "|") */
  87     real otherblues[10];        /* (optional) descender blue zones */
  88     struct pschars *othersubrs; /* (optional) shouldn't contain user defined subs */
  89     int password;               /* obsolete, required must be 5839 */
  90     char *rd;                   /* "{string currentfile exch readstring pop}" (may also be named "-|") */
  91     unsigned int rndstemup:1;   /* (optional) obsolete, false if languagegroud==1 */
  92     real stdhw[1];              /* (optional) dominant horizontal stem width */
  93     real stdvw[1];              /* (optional) dominant vert */
  94     real stemsnaph[12]; /* (optional) common h stem widths (at most 12, includes stdhw, sorted by increasing size) */
  95     real stemsnapv[12]; /* (optional) common v stem widths*/
  96     struct pschars *subrs;      /* (optional, required if othersubrs is present) */
  97                         /* 0-2 part of Flex, 3 hint replacement, 4 and up for charstrings */
  98     int uniqueid;               /* (optional) seems same as fontdict entry. why's it here too? what of XUID? */
  99 /* CID entries */
 100     int subrmapoffset;          /* Offset to the start of this font's subr strings map */
 101     int sdbytes;                /* bytes in each pointer in the map */
 102     int subrcnt;                /* number of subroutines, number of pointers-1 in the map */
 103 #endif
 104 };
 105
 106 typedef struct fontdict {
 107     int fonttype;
 108     real fontmatrix[6];
 109     char *fontname;             /* (optional) */
 110     struct fontinfo *fontinfo;
 111     int languagelevel;          /* (optional) */
 112     int wmode;                  /* (optional) chooses between alternate metric sets */
 113 /* non-type0 entries */
 114     char *encoding[256];
 115     real fontbb[4];
 116     int uniqueid;               /* (optional) open range between 4,000,000 and 4,999,999 */
 117     int xuid[20];               /* (optional) */
 118 /* Type1 specific values */
 119     int painttype;              /* 0 (filled) 2 (stroked) */
 120     real strokewidth;           /* (optional) only if painttype==2 */
 121     struct psdict *metrics;     /* (optional) */
 122     struct psdict *metrics2;    /* (optional) */
 123     struct pschars *chars;
 124     struct charprocs *charprocs;
 125     struct private *private;
 126     unsigned int wasbinary: 1;
 127     unsigned int wascff: 1;
 128     Encoding *encoding_name;
 129 /* CID stuff */
 130     int fdcnt;                  /* For the underlying dictionaries */
 131     struct fontdict **fds;
 132     char *cidfontname;
 133     int cidfonttype;
 134     real cidversion;
 135     char *registry;
 136     char *ordering;
 137     int supplement;
 138     int mapoffset;
 139     int fdbytes;
 140     int gdbytes;
 141     int cidcnt;
 142     uint8 **cidstrs;
 143     int16 *cidlens;
 144     int16 *cidfds;
 145 /* CFF stuff */
 146     struct splinefont *sf;
 147 /* MM stuff */
 148     char *blendfunc;
 149     char *weightvector;
 150     char *cdv;
 151     char *ndv;
 152     struct psdict *blendprivate;
 153     struct psdict *blendfontinfo;
 154 #ifdef _HAS_LONGLONG
 155     long long creationtime;             /* seconds since 1970 */
 156     long long modificationtime;
 157 #else
 158     long creationtime;
 159     long modificationtime;
 160 #endif
 161 } FontDict;
 162
 163 struct cidbytes {
 164     int fdbytes, gdbytes, cidcnt;
 165     int cidmapoffset;
 166     int fdcnt;
 167     struct fddata {
 168         int leniv;
 169         int subrmapoff, sdbytes, subrcnt;
 170         int flexmax;
 171         unsigned int iscjk:1;
 172         struct pschars *subrs;
 173     } *fds;
 174     int *fdind;
 175     int errors;
 176 };
 177
 178 struct fd2data {
 179     int defwid, nomwid;         /* For Type2 charstrings */
 180     struct pschars *subrs;
 181     FILE *private;              /* Subroutines get stored in the private file immediately after the private dict */
 182     int eodictmark, fillindictmark;
 183     int privatelen;
 184 };
 185
 186 extern char *AdobeStandardEncoding[256];
 187
 188 extern FontDict *_ReadPSFont(FILE *ps);
 189 extern FontDict *ReadPSFont(char *fontname);
 190 extern void PSFontFree(FontDict *fd);
 191 #endif