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1 /****************************************************************************
2  *
3  * t42parse.h
4  *
5  *   Type 42 font parser (specification).
6  *
7  * Copyright (C) 2002-2023 by
8  * Roberto Alameda.
9  *
10  * This file is part of the FreeType project, and may only be used,
11  * modified, and distributed under the terms of the FreeType project
12  * license, LICENSE.TXT.  By continuing to use, modify, or distribute
13  * this file you indicate that you have read the license and
14  * understand and accept it fully.
15  *
16  */
17 
18 
19 #ifndef T42PARSE_H_
20 #define T42PARSE_H_
21 
22 
23 #include "t42objs.h"
24 #include <freetype/internal/psaux.h>
25 
26 
27 FT_BEGIN_HEADER
28 
29   typedef struct  T42_ParserRec_
30   {
31     PS_ParserRec  root;
32     FT_Stream     stream;
33 
34     FT_Byte*      base_dict;
35     FT_Long       base_len;
36 
37     FT_Bool       in_memory;
38 
39   } T42_ParserRec, *T42_Parser;
40 
41 
42   typedef struct  T42_Loader_
43   {
44     T42_ParserRec  parser;          /* parser used to read the stream */
45 
46     FT_Int         num_chars;       /* number of characters in encoding */
47     PS_TableRec    encoding_table;  /* PS_Table used to store the       */
48                                     /* encoding character names         */
49 
50     FT_Int         num_glyphs;
51     PS_TableRec    glyph_names;
52     PS_TableRec    charstrings;
53     PS_TableRec    swap_table;      /* For moving .notdef glyph to index 0. */
54 
55   } T42_LoaderRec, *T42_Loader;
56 
57 
58   FT_LOCAL( FT_Error )
59   t42_parser_init( T42_Parser     parser,
60                    FT_Stream      stream,
61                    FT_Memory      memory,
62                    PSAux_Service  psaux );
63 
64   FT_LOCAL( void )
65   t42_parser_done( T42_Parser  parser );
66 
67 
68   FT_LOCAL( FT_Error )
69   t42_parse_dict( T42_Face    face,
70                   T42_Loader  loader,
71                   FT_Byte*    base,
72                   FT_Long     size );
73 
74 
75   FT_LOCAL( void )
76   t42_loader_init( T42_Loader  loader,
77                    T42_Face    face );
78 
79   FT_LOCAL( void )
80   t42_loader_done( T42_Loader  loader );
81 
82 
83  /* */
84 
85 FT_END_HEADER
86 
87 
88 #endif /* T42PARSE_H_ */
89 
90 
91 /* END */
92