blob: f6be5f108e43266fef6edd253d68f609b0efbe6c (
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
|
/*******************************************************************
*
* ttcmap.h 1.0
*
* TrueType Character Mappings
*
* Copyright 1996-1999 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used
* modified and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*
******************************************************************/
#ifndef TTCMAP_H
#define TTCMAP_H
#include "ttconfig.h"
#include "tttypes.h"
#ifdef __cplusplus
extern "C" {
#endif
/* format 0 */
struct TCMap0_
{
PByte glyphIdArray;
};
typedef struct TCMap0_ TCMap0;
typedef TCMap0* PCMap0;
/* format 2 */
struct TCMap2SubHeader_
{
UShort firstCode; /* first valid low byte */
UShort entryCount; /* number of valid low bytes */
Short idDelta; /* delta value to glyphIndex */
UShort idRangeOffset; /* offset from here to 1st code */
};
typedef struct TCMap2SubHeader_ TCMap2SubHeader;
typedef TCMap2SubHeader* PCMap2SubHeader;
struct TCMap2_
{
PUShort subHeaderKeys;
/* high byte mapping table */
/* value = subHeader index * 8 */
PCMap2SubHeader subHeaders;
PUShort glyphIdArray;
UShort numGlyphId; /* control value */
};
typedef struct TCMap2_ TCMap2;
typedef TCMap2* PCMap2;
/* format 4 */
struct TCMap4Segment_
{
UShort endCount;
UShort startCount;
Short idDelta; /* in the specs defined as UShort but the
example there gives negative values... */
UShort idRangeOffset;
};
typedef struct TCMap4Segment_ TCMap4Segment;
typedef TCMap4Segment* PCMap4Segment;
struct TCMap4_
{
UShort segCountX2; /* number of segments * 2 */
UShort searchRange; /* these parameters can be used */
UShort entrySelector; /* for a binary search */
UShort rangeShift;
PCMap4Segment segments;
PUShort glyphIdArray;
UShort numGlyphId; /* control value */
};
typedef struct TCMap4_ TCMap4;
typedef TCMap4* PCMap4;
/* format 6 */
struct TCMap6_
{
UShort firstCode; /* first character code of subrange */
UShort entryCount; /* number of character codes in subrange */
PUShort glyphIdArray;
};
typedef struct TCMap6_ TCMap6;
typedef TCMap6* PCMap6;
/* charmap table */
struct TCMapTable_
{
UShort platformID;
UShort platformEncodingID;
UShort format;
UShort length;
UShort version;
Bool loaded;
ULong offset;
union
{
TCMap0 cmap0;
TCMap2 cmap2;
TCMap4 cmap4;
TCMap6 cmap6;
} c;
};
typedef struct TCMapTable_ TCMapTable;
typedef TCMapTable* PCMapTable;
/* Load character mappings directory when face is loaded. */
/* The mappings themselves are only loaded on demand. */
LOCAL_DEF
TT_Error CharMap_Load( PCMapTable table,
TT_Stream input );
/* Destroy one character mapping table */
LOCAL_DEF
TT_Error CharMap_Free( PCMapTable table );
/* Use character mapping table to perform mapping */
LOCAL_DEF
UShort CharMap_Index( PCMapTable cmap,
ULong charCode );
/* NOTE: The PFace type isn't defined at this point */
#ifdef __cplusplus
}
#endif
#endif /* TTCMAP_H */
/* END */
|
