/* This is dvipdfmx, an eXtended version of dvipdfm by Mark A. Wicks. Copyright (C) 2002-2020 by Jin-Hwan Cho and Shunsaku Hirata, the dvipdfmx project team. This program 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. This program 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 General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. */ #ifndef _SFNT_H_ #define _SFNT_H_ #include "mfileio.h" #include "numbers.h" #include "pdfobj.h" /* Acoid conflict with CHAR ... from . */ #define CHAR SFNT_CHAR #define ULONG SFNT_ULONG #define LONG SFNT_LONG /* Data Types as described in Apple's TTRefMan */ typedef unsigned char BYTE; typedef signed char CHAR; typedef unsigned short USHORT; typedef signed short SHORT; typedef uint32_t ULONG; typedef int32_t LONG; typedef uint32_t Fixed; /* 16.16-bit signed fixed-point number */ typedef short FWord; typedef unsigned short uFWord; struct sfnt_table { /* table header */ char tag[4]; ULONG check_sum; ULONG offset; ULONG length; char *data; /* table data */ }; #define SFNT_TABLE_REQUIRED (1 << 0) struct sfnt_table_directory { ULONG version; /* Fixed for Win */ USHORT num_tables; USHORT search_range; USHORT entry_selector; USHORT range_shift; USHORT num_kept_tables; /* number of kept tables */ char *flags; /* keep or omit */ struct sfnt_table *tables; }; /* sfnt resource */ #define SFNT_TYPE_TRUETYPE (1 << 0) #define SFNT_TYPE_OPENTYPE (1 << 1) #define SFNT_TYPE_POSTSCRIPT (1 << 2) #define SFNT_TYPE_TTC (1 << 4) #define SFNT_TYPE_DFONT (1 << 8) typedef struct { int type; struct sfnt_table_directory *directory; FILE *stream; ULONG offset; } sfnt; /* Convert sfnt "fixed" type to double */ #define fixed(a) ((double)((a)%0x10000L)/(double)(0x10000L) + \ (a)/0x10000L - (((a)/0x10000L > 0x7fffL) ? 0x10000L : 0)) /* get_***_*** from numbers.h */ #define sfnt_get_byte(s) ((BYTE) get_unsigned_byte((s)->stream)) #define sfnt_get_char(s) ((CHAR) get_signed_byte ((s)->stream)) #define sfnt_get_ushort(s) ((USHORT) get_unsigned_pair((s)->stream)) #define sfnt_get_short(s) ((SHORT) get_signed_pair ((s)->stream)) #define sfnt_get_ulong(s) ((ULONG) get_unsigned_quad((s)->stream)) #define sfnt_get_long(s) ((LONG) get_signed_quad ((s)->stream)) #define sfnt_seek_set(s,o) seek_absolute((s)->stream, (o)) #define sfnt_read(b,l,s) fread((b), 1, (l), (s)->stream) extern int put_big_endian (void *s, LONG q, int n); #define sfnt_put_ushort(s,v) put_big_endian((s), v, 2); #define sfnt_put_short(s,v) put_big_endian((s), v, 2); #define sfnt_put_ulong(s,v) put_big_endian((s), v, 4); #define sfnt_put_long(s,v) put_big_endian((s), v, 4); extern sfnt *sfnt_open (FILE *fp); extern sfnt *dfont_open (FILE *fp, int index); extern void sfnt_close (sfnt *sfont); /* table directory */ extern int sfnt_read_table_directory (sfnt *sfont, ULONG offset); extern ULONG sfnt_find_table_len (sfnt *sfont, const char *tag); extern ULONG sfnt_find_table_pos (sfnt *sfont, const char *tag); extern ULONG sfnt_locate_table (sfnt *sfont, const char *tag); extern void sfnt_set_table (sfnt *sfont, const char *tag, void *data, ULONG length); extern int sfnt_require_table (sfnt *sfont, const char *tag, int must_exist); extern pdf_obj *sfnt_create_FontFile_stream (sfnt *sfont); #endif /* _SFNT_H_ */