• Home
  • Line#
  • Scopes#
  • Navigate#
  • Raw
  • Download
1 /****************************************************************************
2  *
3  * cidparse.h
4  *
5  *   CID-keyed Type1 parser (specification).
6  *
7  * Copyright 1996-2018 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 CIDPARSE_H_
20 #define CIDPARSE_H_
21 
22 
23 #include <ft2build.h>
24 #include FT_INTERNAL_TYPE1_TYPES_H
25 #include FT_INTERNAL_STREAM_H
26 #include FT_INTERNAL_POSTSCRIPT_AUX_H
27 
28 
29 FT_BEGIN_HEADER
30 
31 
32   /**************************************************************************
33    *
34    * @Struct:
35    *   CID_Parser
36    *
37    * @Description:
38    *   A CID_Parser is an object used to parse a Type 1 fonts very
39    *   quickly.
40    *
41    * @Fields:
42    *   root ::
43    *     The root PS_ParserRec fields.
44    *
45    *   stream ::
46    *     The current input stream.
47    *
48    *   postscript ::
49    *     A pointer to the data to be parsed.
50    *
51    *   postscript_len ::
52    *     The length of the data to be parsed.
53    *
54    *   data_offset ::
55    *     The start position of the binary data (i.e., the
56    *     end of the data to be parsed.
57    *
58    *   binary_length ::
59    *     The length of the data after the `StartData'
60    *     command if the data format is hexadecimal.
61    *
62    *   cid ::
63    *     A structure which holds the information about
64    *     the current font.
65    *
66    *   num_dict ::
67    *     The number of font dictionaries.
68    */
69   typedef struct  CID_Parser_
70   {
71     PS_ParserRec  root;
72     FT_Stream     stream;
73 
74     FT_Byte*      postscript;
75     FT_ULong      postscript_len;
76 
77     FT_ULong      data_offset;
78 
79     FT_ULong      binary_length;
80 
81     CID_FaceInfo  cid;
82     FT_Int        num_dict;
83 
84   } CID_Parser;
85 
86 
87   FT_LOCAL( FT_Error )
88   cid_parser_new( CID_Parser*    parser,
89                   FT_Stream      stream,
90                   FT_Memory      memory,
91                   PSAux_Service  psaux );
92 
93   FT_LOCAL( void )
94   cid_parser_done( CID_Parser*  parser );
95 
96 
97   /**************************************************************************
98    *
99    *                           PARSING ROUTINES
100    *
101    */
102 
103 #define cid_parser_skip_spaces( p )                 \
104           (p)->root.funcs.skip_spaces( &(p)->root )
105 #define cid_parser_skip_PS_token( p )                 \
106           (p)->root.funcs.skip_PS_token( &(p)->root )
107 
108 #define cid_parser_to_int( p )       (p)->root.funcs.to_int( &(p)->root )
109 #define cid_parser_to_fixed( p, t )  (p)->root.funcs.to_fixed( &(p)->root, t )
110 
111 #define cid_parser_to_coord_array( p, m, c )                 \
112           (p)->root.funcs.to_coord_array( &(p)->root, m, c )
113 #define cid_parser_to_fixed_array( p, m, f, t )                 \
114           (p)->root.funcs.to_fixed_array( &(p)->root, m, f, t )
115 #define cid_parser_to_token( p, t )                 \
116           (p)->root.funcs.to_token( &(p)->root, t )
117 #define cid_parser_to_token_array( p, t, m, c )                 \
118           (p)->root.funcs.to_token_array( &(p)->root, t, m, c )
119 
120 #define cid_parser_load_field( p, f, o )                       \
121           (p)->root.funcs.load_field( &(p)->root, f, o, 0, 0 )
122 #define cid_parser_load_field_table( p, f, o )                       \
123           (p)->root.funcs.load_field_table( &(p)->root, f, o, 0, 0 )
124 
125 
126 FT_END_HEADER
127 
128 #endif /* CIDPARSE_H_ */
129 
130 
131 /* END */
132