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      1 /***************************************************************************/
      2 /*                                                                         */
      3 /*  t1parse.h                                                              */
      4 /*                                                                         */
      5 /*    Type 1 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 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         :: The root parser.                                   */
     42   /*                                                                       */
     43   /*    stream       :: The current input stream.                          */
     44   /*                                                                       */
     45   /*    base_dict    :: A pointer to the top-level dictionary.             */
     46   /*                                                                       */
     47   /*    base_len     :: The length in bytes of the top dictionary.         */
     48   /*                                                                       */
     49   /*    private_dict :: A pointer to the private dictionary.               */
     50   /*                                                                       */
     51   /*    private_len  :: The length in bytes of the private dictionary.     */
     52   /*                                                                       */
     53   /*    in_pfb       :: A boolean.  Indicates that we are handling a PFB   */
     54   /*                    file.                                              */
     55   /*                                                                       */
     56   /*    in_memory    :: A boolean.  Indicates a memory-based stream.       */
     57   /*                                                                       */
     58   /*    single_block :: A boolean.  Indicates that the private dictionary  */
     59   /*                    is stored in lieu of the base dictionary.          */
     60   /*                                                                       */
     61   typedef struct  T1_ParserRec_
     62   {
     63     PS_ParserRec  root;
     64     FT_Stream     stream;
     65 
     66     FT_Byte*      base_dict;
     67     FT_ULong      base_len;
     68 
     69     FT_Byte*      private_dict;
     70     FT_ULong      private_len;
     71 
     72     FT_Bool       in_pfb;
     73     FT_Bool       in_memory;
     74     FT_Bool       single_block;
     75 
     76   } T1_ParserRec, *T1_Parser;
     77 
     78 
     79 #define T1_Add_Table( p, i, o, l )  (p)->funcs.add( (p), i, o, l )
     80 #define T1_Release_Table( p )          \
     81           do                           \
     82           {                            \
     83             if ( (p)->funcs.release )  \
     84               (p)->funcs.release( p ); \
     85           } while ( 0 )
     86 
     87 
     88 #define T1_Skip_Spaces( p )    (p)->root.funcs.skip_spaces( &(p)->root )
     89 #define T1_Skip_PS_Token( p )  (p)->root.funcs.skip_PS_token( &(p)->root )
     90 
     91 #define T1_ToInt( p )       (p)->root.funcs.to_int( &(p)->root )
     92 #define T1_ToFixed( p, t )  (p)->root.funcs.to_fixed( &(p)->root, t )
     93 
     94 #define T1_ToCoordArray( p, m, c )                           \
     95           (p)->root.funcs.to_coord_array( &(p)->root, m, c )
     96 #define T1_ToFixedArray( p, m, f, t )                           \
     97           (p)->root.funcs.to_fixed_array( &(p)->root, m, f, t )
     98 #define T1_ToToken( p, t )                          \
     99           (p)->root.funcs.to_token( &(p)->root, t )
    100 #define T1_ToTokenArray( p, t, m, c )                           \
    101           (p)->root.funcs.to_token_array( &(p)->root, t, m, c )
    102 
    103 #define T1_Load_Field( p, f, o, m, pf )                         \
    104           (p)->root.funcs.load_field( &(p)->root, f, o, m, pf )
    105 
    106 #define T1_Load_Field_Table( p, f, o, m, pf )                         \
    107           (p)->root.funcs.load_field_table( &(p)->root, f, o, m, pf )
    108 
    109 
    110   FT_LOCAL( FT_Error )
    111   T1_New_Parser( T1_Parser      parser,
    112                  FT_Stream      stream,
    113                  FT_Memory      memory,
    114                  PSAux_Service  psaux );
    115 
    116   FT_LOCAL( FT_Error )
    117   T1_Get_Private_Dict( T1_Parser      parser,
    118                        PSAux_Service  psaux );
    119 
    120   FT_LOCAL( void )
    121   T1_Finalize_Parser( T1_Parser  parser );
    122 
    123 
    124 FT_END_HEADER
    125 
    126 #endif /* T1PARSE_H_ */
    127 
    128 
    129 /* END */
    130