summaryrefslogtreecommitdiff
path: root/Build/source/texk/web2c/luatexdir/font/writecff.h
blob: f05822a893bd70f2fd0b7c6524d278bb366c6526 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
/* writecff.h

   Copyright 2002 by Jin-Hwan Cho and Shunsaku Hirata,
   the dvipdfmx project team <dvipdfmx@project.ktug.or.kr>
   Copyright 2006-2008 Taco Hoekwater <taco@luatex.org>

   This file is part of LuaTeX.

   LuaTeX 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 2 of the License, or (at your
   option) any later version.

   LuaTeX 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 General Public License along
   with LuaTeX; if not, see <http://www.gnu.org/licenses/>. */


#ifndef _CFF_LIMITS_H_
#  define _CFF_LIMITS_H_

#  include <limits.h>

#  define CFF_INT_MAX 0x7fffffff
#  define CFF_INT_MIN (-0x7fffffff - 1)

#  if (LONG_MAX < CFF_INT_MAX || LONG_MIN > CFF_INT_MIN)
#    error "CFF support won't work on this system."
#  endif

#  define CFF_SID_MAX    64999
#  define CFF_STDSTR_MAX 391

/* Type 2 Charstring */
#  define CS_NUM_SUBR_MAX    65536
#  define CS_STR_LEN_MAX     65536
#  define CS_STEM_ZONE_MAX   96
#  define CS_ARG_STACK_MAX   48
#  define CS_TRANS_ARRAY_MAX 32
#  define CS_SUBR_NEST_MAX   10

#endif                          /* _CFF_LIMITS_H_ */

#ifndef _CFF_TYPES_H_
#  define _CFF_TYPES_H_

/* CFF Data Types */

#  define CFF_TYPE_UNKNOWN 0
#  define CFF_TYPE_INTEGER (1 << 0)
#  define CFF_TYPE_REAL    (1 << 1)
#  define CFF_TYPE_NUMBER  (CFF_TYPE_INTEGER|CFF_TYPE_REAL)
#  define CFF_TYPE_BOOLEAN (1 << 2)
#  define CFF_TYPE_SID     (1 << 3)
#  define CFF_TYPE_ARRAY   (1 << 4)
#  define CFF_TYPE_DELTA   (1 << 5)

/* SID SID number */
#  define CFF_TYPE_ROS     (1 << 6)
/* offset(0) */
#  define CFF_TYPE_OFFSET  (1 << 7)
/* size offset(0) */
#  define CFF_TYPE_SZOFF   (1 << 8)

typedef unsigned char card8;    /* 1-byte unsigned number */
typedef unsigned short card16;  /* 2-byte unsigned number */
typedef unsigned char c_offsize;        /* 1-byte unsigned number specifies the size
                                           of an Offset field or fields, range 1-4 */
typedef unsigned long l_offset; /* 1, 2, 3, or 4-byte offset */
typedef unsigned short s_SID;   /* 2-byte string identifier  */

typedef unsigned long l_size;

typedef struct {
    card16 count;               /* number of objects stored in INDEX */
    c_offsize offsize;          /* Offset array element size, 1-4    */
    l_offset *offset;           /* Offset array, count + 1 offsets   */
    card8 *data;                /* Object data                       */
} cff_index;


/* Dictionary */
typedef struct {
    int id;                     /* encoded data value (as card8 or card16) */
    const char *key;            /* opname                                  */
    int count;                  /* number of values                        */
    double *values;             /* values                                  */
} cff_dict_entry;

typedef struct {
    int max;
    int count;
    cff_dict_entry *entries;
} cff_dict;

/* Encoding, Charset and FDSelect */
typedef struct {
    s_SID first;                /* SID or CID, or card8 for Encoding  */
    card8 n_left;               /* no. of remaining gids/codes in this range */
} cff_range1;

typedef struct {
    s_SID first;                /* SID or CID (card16)      */
    card16 n_left;              /* card16-version of range1 */
} cff_range2;

typedef struct {
    card8 code;
    s_SID glyph;
} cff_map;

typedef struct {
    card8 format;               /* if (format & 0x80) then have supplement */
    card8 num_entries;          /* number of entries */
    union {
        card8 *codes;           /* format 0 */
        cff_range1 *range1;     /* format 1 */
    } data;
    card8 num_supps;            /* number of supplementary data */
    cff_map *supp;              /* supplement */
} cff_encoding;

typedef struct {
    card8 format;
    card16 num_entries;
    union {
        s_SID *glyphs;          /* format 0 */
        cff_range1 *range1;     /* format 1 */
        cff_range2 *range2;     /* format 2 */
    } data;
} cff_charsets;

/* CID-Keyed font specific */
typedef struct {
    card16 first;
    card8 fd;
} cff_range3;

typedef struct {
    card8 format;
    card16 num_entries;         /* number of glyphs/ranges */
    union {
        card8 *fds;             /* format 0 */
        cff_range3 *ranges;     /* format 3 */
    } data;
    /* card16 sentinel; *//* format 3 only, must be equals to num_glyphs */
} cff_fdselect;

#endif                          /* _CFF_TYPES_H_ */

#ifndef _CFF_STDSTR_H_
#  define _CFF_STDSTR_H_

#  define CFF_STDSTR_MAX 391

extern const char *const cff_stdstr[];
#endif                          /* _CFF_STDSTR_H_ */

#ifndef _CFF_H_
#  define _CFF_H_

/*#include "mfileio.h"*/

/* Flag */
#  define FONTTYPE_CIDFONT  (1 << 0)
#  define FONTTYPE_FONT     (1 << 1)
#  define FONTTYPE_MMASTER  (1 << 2)

#  define ENCODING_STANDARD (1 << 3)
#  define ENCODING_EXPERT   (1 << 4)

#  define CHARSETS_ISOADOBE (1 << 5)
#  define CHARSETS_EXPERT   (1 << 6)
#  define CHARSETS_EXPSUB   (1 << 7)

#  define HAVE_STANDARD_ENCODING (ENCODING_STANDARD|ENCODING_EXPERT)
#  define HAVE_STANDARD_CHARSETS \
  (CHARSETS_ISOADOBE|CHARSETS_EXPERT|CHARSETS_EXPSUB)

#  define CFF_STRING_NOTDEF 65535

typedef struct {
    char *fontname;             /* FontName */

    /* - CFF structure - */

    card8 header_major;         /* major version                  */
    card8 header_minor;         /* minor version                  */
    card8 header_hdr_size;      /* Header size (bytes)                  */
    c_offsize header_offsize;   /* Absolute offset (0) size             */

    cff_index *name;            /* Name INDEX */
    cff_dict *topdict;          /* Top DICT (single) */
    cff_index *string;          /* String INDEX */
    cff_index *gsubr;           /* Global Subr INDEX */
    cff_encoding *encoding;     /* Encodings */
    cff_charsets *charsets;     /* Charsets  */
    cff_fdselect *fdselect;     /* FDSelect, CIDFont only */
    cff_index *cstrings;        /* CharStrings */
    cff_dict **fdarray;         /* CIDFont only */
    cff_dict **private;         /* per-Font DICT */
    cff_index **subrs;          /* Local Subr INDEX, per-Private DICT */

    /* -- extra data -- */
    l_offset gsubr_offset;
    card16 num_glyphs;          /* number of glyphs (CharString INDEX count) */
    card8 num_fds;              /* number of Font DICT */

    /* Updated String INDEX.
     * Please fix this. We should separate input and output.
     */
    cff_index *_string;

    unsigned char *stream;
    l_offset offset;
    l_offset stream_size;

    int index;                  /* CFF fontset index */
    int flag;                   /* Flag: see above */
} cff_font;

extern cff_font *cff_open(unsigned char *stream, long stream_size, int n);
extern void cff_close(cff_font * cff);

#  define cff_seek_set(c, p) seek_absolute (((c)->stream), ((c)->offset) + (p));

/* CFF Header */
extern long cff_put_header(cff_font * cff, card8 * dest, long destlen);

/* CFF INDEX */
extern cff_index *cff_get_index(cff_font * cff);
extern cff_index *cff_get_index_header(cff_font * cff);
extern void cff_release_index(cff_index * idx);
extern cff_index *cff_new_index(card16 count);
extern long cff_index_size(cff_index * idx);
extern long cff_pack_index(cff_index * idx, card8 * dest, long destlen);

/* Name INDEX */
extern char *cff_get_name(cff_font * cff);
extern long cff_set_name(cff_font * cff, char *name);

/* Global and Local Subrs INDEX */
extern long cff_read_subrs(cff_font * cff);

/* Encoding */
extern void cff_release_encoding(cff_encoding * encoding);

/* Charsets */
extern long cff_read_charsets(cff_font * cff);
extern long cff_pack_charsets(cff_font * cff, card8 * dest, long destlen);

extern void cff_release_charsets(cff_charsets * charset);
/* Returns SID or CID */

/* FDSelect */
extern long cff_read_fdselect(cff_font * cff);
extern long cff_pack_fdselect(cff_font * cff, card8 * dest, long destlen);
extern card8 cff_fdselect_lookup(cff_font * cff, card16 gid);
extern void cff_release_fdselect(cff_fdselect * fdselect);

/* Font DICT(s) */
extern long cff_read_fdarray(cff_font * cff);

/* Private DICT(s) */
extern long cff_read_private(cff_font * cff);

/* String */
extern int cff_match_string(cff_font * cff, const char *str, s_SID sid);
extern char *cff_get_string(cff_font * cff, s_SID id);
extern long cff_get_sid(cff_font * cff, const char *str);
extern s_SID cff_add_string(cff_font * cff, const char *str);
extern void cff_update_string(cff_font * cff);

#  define cff_is_stdstr(s) (cff_get_sid(NULL, (s)) >= 0)

#endif                          /* _CFF_H_ */

#ifndef _CFF_DICT_H_
#  define _CFF_DICT_H_

#  define CFF_CIDCOUNT_DEFAULT      8720
#  define CFF_NOMINALWIDTHX_DEFAULT 0.0
#  define CFF_DEFAULTWIDTHX_DEFAULT 0.0

extern cff_dict *cff_new_dict(void);
extern void cff_release_dict(cff_dict * dict);

extern void cff_dict_set(cff_dict * dict, const char *key, int idx,
                         double value);
extern double cff_dict_get(cff_dict * dict, const char *key, int idx);
extern void cff_dict_add(cff_dict * dict, const char *key, int count);
extern void cff_dict_remove(cff_dict * dict, const char *key);
extern int cff_dict_known(cff_dict * dict, const char *key);

/* decode/encode DICT */
extern cff_dict *cff_dict_unpack(card8 * data, card8 * endptr);
extern long cff_dict_pack(cff_dict * dict, card8 * dest, long destlen);

extern void cff_dict_update(cff_dict * dict, cff_font * cff);

#endif                          /* _CFF_DICT_H_ */

#ifndef _CS_TYPE2_H_
#  define _CS_TYPE2_H_

typedef struct {
    int flags;                  /* unused in Type 2 charstring */
    double wx, wy;
    struct {
        double llx, lly, urx, ury;
    } bbox;
    struct {
        double asb, adx, ady;
        card8 bchar, achar;
    } seac;                     /* unused in Type 2 charstring */
} cs_ginfo;

#endif                          /* _CS_TYPE2_H_ */

#define cff_is_cidfont(a) (a->flag & FONTTYPE_CIDFONT)
#define cff_understandable(a) (a->header_major==1)

extern cff_font *read_cff(unsigned char *buf, long buflength, int subf);

extern void write_cff(PDF pdf, cff_font * cff, fd_entry * fd);
extern void write_cid_cff(PDF pdf, cff_font * cffont, fd_entry * fd);