thirdparty/freetype-2.3.12/src/cff/cffparse.h

   1 /***************************************************************************/
   2 /*                                                                         */
   3 /*  cffparse.h                                                             */
   4 /*                                                                         */
   5 /*    CFF token stream parser (specification)                              */
   6 /*                                                                         */
   7 /*  Copyright 1996-2001, 2002, 2003 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 __CFF_PARSE_H__
  20 #define __CFF_PARSE_H__
  21
  22
  23 #include <ft2build.h>
  24 #include "cfftypes.h"
  25 #include FT_INTERNAL_OBJECTS_H
  26
  27
  28 FT_BEGIN_HEADER
  29
  30
  31 #define CFF_MAX_STACK_DEPTH  96
  32
  33 #define CFF_CODE_TOPDICT  0x1000
  34 #define CFF_CODE_PRIVATE  0x2000
  35
  36
  37   typedef struct  CFF_ParserRec_
  38   {
  39     FT_Library library;
  40     FT_Byte*   start;
  41     FT_Byte*   limit;
  42     FT_Byte*   cursor;
  43
  44     FT_Byte*   stack[CFF_MAX_STACK_DEPTH + 1];
  45     FT_Byte**  top;
  46
  47     FT_UInt    object_code;
  48     void*      object;
  49
  50   } CFF_ParserRec, *CFF_Parser;
  51
  52
  53   FT_LOCAL( void )
  54   cff_parser_init( CFF_Parser  parser,
  55                    FT_UInt     code,
  56                    void*       object,
  57                    FT_Library  library);
  58
  59   FT_LOCAL( FT_Error )
  60   cff_parser_run( CFF_Parser  parser,
  61                   FT_Byte*    start,
  62                   FT_Byte*    limit );
  63
  64
  65   enum
  66   {
  67     cff_kind_none = 0,
  68     cff_kind_num,
  69     cff_kind_fixed,
  70     cff_kind_fixed_thousand,
  71     cff_kind_string,
  72     cff_kind_bool,
  73     cff_kind_delta,
  74     cff_kind_callback,
  75
  76     cff_kind_max  /* do not remove */
  77   };
  78
  79
  80   /* now generate handlers for the most simple fields */
  81   typedef FT_Error  (*CFF_Field_Reader)( CFF_Parser  parser );
  82
  83   typedef struct  CFF_Field_Handler_
  84   {
  85     int               kind;
  86     int               code;
  87     FT_UInt           offset;
  88     FT_Byte           size;
  89     CFF_Field_Reader  reader;
  90     FT_UInt           array_max;
  91     FT_UInt           count_offset;
  92
  93   } CFF_Field_Handler;
  94
  95
  96 FT_END_HEADER
  97
  98
  99 #endif /* __CFF_PARSE_H__ */
 100
 101
 102 /* END */