t42parse.h

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Author : Werner Lemberg
Date : 2003-10-16 15:48:39
Hash : e3f41982
Message : Completely revised Type 42 parser. It now handles both fonts produced with ttftot42 (tested version 0.3.1) and TrueTypeToType42.ps (tested version May 2001; it is necessary to fix the broken header comment to be `%!PS-TrueTypeFont...'). * src/type42/t42objs.c (T42_GlyphSlot_Load): Change fourth parameter to `FT_UInt'. * src/type42/t42objs.h: Updated. * src/type42/t42parse.h (T42_ParserRec): Change type of `in_memory' to FT_Bool. (T42_Loader): Change type of `num_chars' and `num_glyphs' to FT_UInt. Add `swap_table' element. * src/type42/t42parse.c (T42_KEYWORD_COUNT, T1_ToFixed, T1_ToCoordArray, T1_ToTokenArray): Removed. (T1_ToBytes): New macro. (t42_is_alpha, t42_hexval): Removed. (t42_is_space): Handle `\0'. (t42_parse_encoding): Updated to use new PostScript parser routines from psaux. Handle `/Encoding [ ... ]' also. (T42_Load_Status): New enumeration. (t42_parse_sfnts): Updated to use new PostScript parser routines from psaux. (t42_parse_charstrings): Updated to use new PostScript parser routines from psaux. Handle `/CharStrings << ... >>' also. Don't expect that /.notdef is the first element in dictionary. Copy code from type1 module to handle this. (t42_parse_dict): Updated to use new PostScript parser routines from psaux. Remove code for synthetic fonts (which can't occur in Type 42 fonts). (t42_loader_done): Release `swap_table'. * src/psaux/psobjs.c (skip_string): Increase `cur' properly. * src/type1/t1load.c (parse_charstrings): Make test for `.notdef' faster.

src/type42/t42parse.h

/***************************************************************************/
/*                                                                         */
/*  t42parse.h                                                             */
/*                                                                         */
/*    Type 42 font parser (specification).                                 */
/*                                                                         */
/*  Copyright 2002, 2003 by Roberto Alameda.                               */
/*                                                                         */
/*  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 __T42PARSE_H__
#define __T42PARSE_H__


#include "t42objs.h"
#include FT_INTERNAL_POSTSCRIPT_AUX_H


FT_BEGIN_HEADER

  typedef struct  T42_ParserRec_
  {
    PS_ParserRec  root;
    FT_Stream     stream;

    FT_Byte*      base_dict;
    FT_Long       base_len;

    FT_Bool       in_memory;

  } T42_ParserRec, *T42_Parser;


  typedef struct  T42_Loader_
  {
    T42_ParserRec  parser;          /* parser used to read the stream */

    FT_UInt        num_chars;       /* number of characters in encoding */
    PS_TableRec    encoding_table;  /* PS_Table used to store the       */
                                    /* encoding character names         */

    FT_UInt        num_glyphs;
    PS_TableRec    glyph_names;
    PS_TableRec    charstrings;
    PS_TableRec    swap_table;      /* For moving .notdef glyph to index 0. */

  } T42_LoaderRec, *T42_Loader;


  FT_LOCAL( FT_Error )
  t42_parser_init( T42_Parser     parser,
                   FT_Stream      stream,
                   FT_Memory      memory,
                   PSAux_Service  psaux );

  FT_LOCAL( void )
  t42_parser_done( T42_Parser  parser );


  FT_LOCAL( FT_Error )
  t42_parse_dict( T42_Face    face,
                  T42_Loader  loader,
                  FT_Byte*    base,
                  FT_Long     size );


  FT_LOCAL( void )
  t42_loader_init( T42_Loader  loader,
                   T42_Face    face );

  FT_LOCAL( void )
  t42_loader_done( T42_Loader  loader );


 /* */

FT_END_HEADER


#endif /* __T42PARSE_H__ */


/* END */

kc3-lang/freetype/src/type42/t42parse.h

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kc3-lang/freetype /src/type42/t42parse.h