1 /****************************************************************************
2 *
3 * t1parse.h
4 *
5 * Type 1 parser (specification).
6 *
7 * Copyright (C) 1996-2019 by
8 * David Turner, Robert Wilhelm, and Werner Lemberg.
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 T1PARSE_H_
20 #define T1PARSE_H_
21
22
23 #include <ft2build.h>
24 #include FT_INTERNAL_TYPE1_TYPES_H
25 #include FT_INTERNAL_STREAM_H
26
27
28 FT_BEGIN_HEADER
29
30
31 /**************************************************************************
32 *
33 * @Struct:
34 * T1_ParserRec
35 *
36 * @Description:
37 * A PS_ParserRec is an object used to parse a Type 1 fonts very
38 * quickly.
39 *
40 * @Fields:
41 * root ::
42 * The root parser.
43 *
44 * stream ::
45 * The current input stream.
46 *
47 * base_dict ::
48 * A pointer to the top-level dictionary.
49 *
50 * base_len ::
51 * The length in bytes of the top dictionary.
52 *
53 * private_dict ::
54 * A pointer to the private dictionary.
55 *
56 * private_len ::
57 * The length in bytes of the private dictionary.
58 *
59 * in_pfb ::
60 * A boolean. Indicates that we are handling a PFB
61 * file.
62 *
63 * in_memory ::
64 * A boolean. Indicates a memory-based stream.
65 *
66 * single_block ::
67 * A boolean. Indicates that the private dictionary
68 * is stored in lieu of the base dictionary.
69 */
70 typedef struct T1_ParserRec_
71 {
72 PS_ParserRec root;
73 FT_Stream stream;
74
75 FT_Byte* base_dict;
76 FT_ULong base_len;
77
78 FT_Byte* private_dict;
79 FT_ULong private_len;
80
81 FT_Bool in_pfb;
82 FT_Bool in_memory;
83 FT_Bool single_block;
84
85 } T1_ParserRec, *T1_Parser;
86
87
88 #define T1_Add_Table( p, i, o, l ) (p)->funcs.add( (p), i, o, l )
89 #define T1_Release_Table( p ) \
90 do \
91 { \
92 if ( (p)->funcs.release ) \
93 (p)->funcs.release( p ); \
94 } while ( 0 )
95
96
97 #define T1_Skip_Spaces( p ) (p)->root.funcs.skip_spaces( &(p)->root )
98 #define T1_Skip_PS_Token( p ) (p)->root.funcs.skip_PS_token( &(p)->root )
99
100 #define T1_ToInt( p ) (p)->root.funcs.to_int( &(p)->root )
101 #define T1_ToFixed( p, t ) (p)->root.funcs.to_fixed( &(p)->root, t )
102
103 #define T1_ToCoordArray( p, m, c ) \
104 (p)->root.funcs.to_coord_array( &(p)->root, m, c )
105 #define T1_ToFixedArray( p, m, f, t ) \
106 (p)->root.funcs.to_fixed_array( &(p)->root, m, f, t )
107 #define T1_ToToken( p, t ) \
108 (p)->root.funcs.to_token( &(p)->root, t )
109 #define T1_ToTokenArray( p, t, m, c ) \
110 (p)->root.funcs.to_token_array( &(p)->root, t, m, c )
111
112 #define T1_Load_Field( p, f, o, m, pf ) \
113 (p)->root.funcs.load_field( &(p)->root, f, o, m, pf )
114
115 #define T1_Load_Field_Table( p, f, o, m, pf ) \
116 (p)->root.funcs.load_field_table( &(p)->root, f, o, m, pf )
117
118
119 FT_LOCAL( FT_Error )
120 T1_New_Parser( T1_Parser parser,
121 FT_Stream stream,
122 FT_Memory memory,
123 PSAux_Service psaux );
124
125 FT_LOCAL( FT_Error )
126 T1_Get_Private_Dict( T1_Parser parser,
127 PSAux_Service psaux );
128
129 FT_LOCAL( void )
130 T1_Finalize_Parser( T1_Parser parser );
131
132
133 FT_END_HEADER
134
135 #endif /* T1PARSE_H_ */
136
137
138 /* END */