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/* 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/>. */
/* $Id: writecff.h 2271 2009-04-12 23:42:21Z oneiros $ */
#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) */
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 long cff_read_encoding(cff_font * cff);
extern long cff_pack_encoding(cff_font * cff, card8 * dest, long destlen);
extern card16 cff_encoding_lookup(cff_font * cff, card8 code);
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);
/* Returns GID of PS name "glyph" */
extern card16 cff_glyph_lookup(cff_font * cff, const char *glyph);
/* Returns GID of glyph with SID/CID "cid" */
extern card16 cff_charsets_lookup(cff_font * cff, card16 cid);
extern void cff_release_charsets(cff_charsets * charset);
/* Returns SID or CID */
extern card16 cff_charsets_lookup_inverse(cff_font * cff, card16 gid);
/* 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, char *str);
extern s_SID cff_add_string(cff_font * cff, 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;
extern long cs_copy_charstring(card8 * dest, long destlen,
card8 * src, long srclen,
cff_index * gsubr, cff_index * subr,
double default_width, double nominal_width,
cs_ginfo * 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(cff_font * cff, fd_entry * fd);
extern void write_cid_cff(cff_font * cffont, fd_entry * fd);
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