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
|
/*
* Modified for use within matplotlib
* 5 July 2007
* Michael Droettboom
*/
#include <stdio.h>
/*
** ~ppr/src/include/typetype.h
**
** Permission to use, copy, modify, and distribute this software and its
** documentation for any purpose and without fee is hereby granted, provided
** that the above copyright notice appear in all copies and that both that
** copyright notice and this permission notice appear in supporting
** documentation. This software is provided "as is" without express or
** implied warranty.
**
** This include file is shared by the source files
** "pprdrv/pprdrv_tt.c" and "pprdrv/pprdrv_tt2.c".
**
** Last modified 19 April 1995.
*/
/* Types used in TrueType font files. */
#define BYTE unsigned char
#define USHORT unsigned short int
#define SHORT short signed int
#define ULONG unsigned int
#define FIXED long signed int
#define FWord short signed int
#define uFWord short unsigned int
/* This structure stores a 16.16 bit fixed */
/* point number. */
typedef struct
{
short int whole;
unsigned short int fraction;
} Fixed;
/* This structure tells what we have found out about */
/* the current font. */
struct TTFONT
{
// A quick-and-dirty way to create a minimum level of exception safety
// Added by Michael Droettboom
TTFONT();
~TTFONT();
const char *filename; /* Name of TT file */
FILE *file; /* the open TT file */
font_type_enum target_type; /* 42 or 3 for PS, or -3 for PDF */
ULONG numTables; /* number of tables present */
char *PostName; /* Font's PostScript name */
char *FullName; /* Font's full name */
char *FamilyName; /* Font's family name */
char *Style; /* Font's style string */
char *Copyright; /* Font's copyright string */
char *Version; /* Font's version string */
char *Trademark; /* Font's trademark string */
int llx,lly,urx,ury; /* bounding box */
Fixed TTVersion; /* Truetype version number from offset table */
Fixed MfrRevision; /* Revision number of this font */
BYTE *offset_table; /* Offset table in memory */
BYTE *post_table; /* 'post' table in memory */
BYTE *loca_table; /* 'loca' table in memory */
BYTE *glyf_table; /* 'glyf' table in memory */
BYTE *hmtx_table; /* 'hmtx' table in memory */
USHORT numberOfHMetrics;
int unitsPerEm; /* unitsPerEm converted to int */
int HUPM; /* half of above */
int numGlyphs; /* from 'post' table */
int indexToLocFormat; /* short or long offsets */
};
ULONG getULONG(BYTE *p);
USHORT getUSHORT(BYTE *p);
Fixed getFixed(BYTE *p);
/*
** Get an funits word.
** since it is 16 bits long, we can
** use getUSHORT() to do the real work.
*/
#define getFWord(x) (FWord)getUSHORT(x)
#define getuFWord(x) (uFWord)getUSHORT(x)
/*
** We can get a SHORT by making USHORT signed.
*/
#define getSHORT(x) (SHORT)getUSHORT(x)
/* This is the one routine in pprdrv_tt.c that is */
/* called from pprdrv_tt.c. */
const char *ttfont_CharStrings_getname(struct TTFONT *font, int charindex);
void tt_type3_charproc(TTStreamWriter& stream, struct TTFONT *font, int charindex);
/* Added 06-07-07 Michael Droettboom */
void ttfont_add_glyph_dependencies(struct TTFONT *font, std::vector<int>& glypy_ids);
/* This routine converts a number in the font's character coordinate */
/* system to a number in a 1000 unit character system. */
#define topost(x) (int)( ((int)(x) * 1000 + font->HUPM) / font->unitsPerEm )
#define topost2(x) (int)( ((int)(x) * 1000 + font.HUPM) / font.unitsPerEm )
/* Composite glyph values. */
#define ARG_1_AND_2_ARE_WORDS 1
#define ARGS_ARE_XY_VALUES 2
#define ROUND_XY_TO_GRID 4
#define WE_HAVE_A_SCALE 8
/* RESERVED 16 */
#define MORE_COMPONENTS 32
#define WE_HAVE_AN_X_AND_Y_SCALE 64
#define WE_HAVE_A_TWO_BY_TWO 128
#define WE_HAVE_INSTRUCTIONS 256
#define USE_MY_METRICS 512
/* end of file */
|
