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/* $Header: /home/cvsroot/dvipdfmx/src/sfnt.h,v 1.11 2011/03/06 03:14:15 chofchof Exp $
This is dvipdfmx, an eXtended version of dvipdfm by Mark A. Wicks.
Copyright (C) 2002 by Jin-Hwan Cho and Shunsaku Hirata,
the dvipdfmx project team <dvipdfmx@project.ktug.or.kr>
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 <winnt.h>. */
#define CHAR SFNT_CHAR
/* 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 unsigned long ULONG;
typedef signed long LONG;
typedef unsigned long Fixed; /* 16.16-bit signed fixed-point number */
typedef short FWord;
typedef unsigned short uFWord;
typedef short F2Dot14; /* 16-bit signed fixed number with the low
14 bits representing fraction. */
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
{
FILE *stream;
int type;
ULONG offset;
struct sfnt_table_directory *directory;
} 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 void sfnt_close (sfnt *sfont);
extern sfnt *dfont_open (FILE *fp, int index);
/* 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_ */
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