src/freetype/freetype/internal/t2types.h

   1 /***************************************************************************/
   2 /*                                                                         */
   3 /*  t2types.h                                                              */
   4 /*                                                                         */
   5 /*    Basic OpenType/CFF type definitions and interface (specification     */
   6 /*    only).                                                               */
   7 /*                                                                         */
   8 /*  Copyright 1996-2000 by                                                 */
   9 /*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
  10 /*                                                                         */
  11 /*  This file is part of the FreeType project, and may only be used,       */
  12 /*  modified, and distributed under the terms of the FreeType project      */
  13 /*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
  14 /*  this file you indicate that you have read the license and              */
  15 /*  understand and accept it fully.                                        */
  16 /*                                                                         */
  17 /***************************************************************************/
  18
  19
  20 #ifndef T2TYPES_H
  21 #define T2TYPES_H
  22
  23
  24 #include <freetype/freetype.h>
  25
  26
  27   /*************************************************************************/
  28   /*                                                                       */
  29   /* <Struct>                                                              */
  30   /*    CFF_Index                                                          */
  31   /*                                                                       */
  32   /* <Description>                                                         */
  33   /*    A structure used to model a CFF Index table.                       */
  34   /*                                                                       */
  35   /* <Fields>                                                              */
  36   /*    stream      :: XXX                                                 */
  37   /*                                                                       */
  38   /*    count       :: The number of elements in the index.                */
  39   /*                                                                       */
  40   /*    off_size    :: The size in bytes of object offsets in index.       */
  41   /*                                                                       */
  42   /*    data_offset :: The position of first data byte in the index's      */
  43   /*                   bytes.                                              */
  44   /*                                                                       */
  45   /*    offsets     :: XXX                                                 */
  46   /*                                                                       */
  47   /*    bytes       :: If the index is loaded in memory, its bytes.        */
  48   /*                                                                       */
  49   typedef struct  CFF_Index_
  50   {
  51     FT_Stream  stream;
  52     FT_UInt    count;
  53     FT_Byte    off_size;
  54     FT_ULong   data_offset;
  55
  56     FT_ULong*  offsets;
  57     FT_Byte*   bytes;
  58
  59   } CFF_Index;
  60
  61
  62   typedef struct  CFF_Font_Dict_
  63   {
  64     FT_UInt    version;
  65     FT_UInt    notice;
  66     FT_UInt    copyright;
  67     FT_UInt    full_name;
  68     FT_UInt    family_name;
  69     FT_UInt    weight;
  70     FT_Bool    is_fixed_pitch;
  71     FT_Fixed   italic_angle;
  72     FT_Pos     underline_position;
  73     FT_Pos     underline_thickness;
  74     FT_Int     paint_type;
  75     FT_Int     charstring_type;
  76     FT_Matrix  font_matrix;
  77     FT_ULong   unique_id;
  78     FT_BBox    font_bbox;
  79     FT_Pos     stroke_width;
  80     FT_ULong   charset_offset;
  81     FT_ULong   encoding_offset;
  82     FT_ULong   charstrings_offset;
  83     FT_ULong   private_offset;
  84     FT_ULong   private_size;
  85     FT_Long    synthetic_base;
  86     FT_UInt    embedded_postscript;
  87     FT_UInt    base_font_name;
  88     FT_UInt    postscript;
  89
  90     /* these should only be used for the top-level font dictionary */
  91     FT_UInt    cid_registry;
  92     FT_UInt    cid_ordering;
  93     FT_ULong   cid_supplement;
  94
  95     FT_Long    cid_font_version;
  96     FT_Long    cid_font_revision;
  97     FT_Long    cid_font_type;
  98     FT_Long    cid_count;
  99     FT_ULong   cid_uid_base;
 100     FT_ULong   cid_fd_array_offset;
 101     FT_ULong   cid_fd_select_offset;
 102     FT_UInt    cid_font_name;
 103
 104   } CFF_Font_Dict;
 105
 106
 107   typedef struct  CFF_Private_
 108   {
 109     FT_Byte   num_blue_values;
 110     FT_Byte   num_other_blues;
 111     FT_Byte   num_family_blues;
 112     FT_Byte   num_family_other_blues;
 113
 114     FT_Pos    blue_values[14];
 115     FT_Pos    other_blues[10];
 116     FT_Pos    family_blues[14];
 117     FT_Pos    family_other_blues[10];
 118
 119     FT_Fixed  blue_scale;
 120     FT_Pos    blue_shift;
 121     FT_Pos    blue_fuzz;
 122     FT_Pos    standard_width;
 123     FT_Pos    standard_height;
 124
 125     FT_Byte   num_snap_widths;
 126     FT_Byte   num_snap_heights;
 127     FT_Pos    snap_widths[13];
 128     FT_Pos    snap_heights[13];
 129     FT_Bool   force_bold;
 130     FT_Fixed  force_bold_threshold;
 131     FT_Int    lenIV;
 132     FT_Int    language_group;
 133     FT_Fixed  expansion_factor;
 134     FT_Long   initial_random_seed;
 135     FT_ULong  local_subrs_offset;
 136     FT_Pos    default_width;
 137     FT_Pos    nominal_width;
 138
 139   } CFF_Private;
 140
 141
 142   typedef struct  CFF_FD_Select_
 143   {
 144     FT_Byte   format;
 145     FT_UInt   range_count;
 146
 147     /* that's the table, taken from the file `as is' */
 148     FT_Byte*  data;
 149     FT_UInt   data_size;
 150
 151     /* small cache for format 3 only */
 152     FT_UInt   cache_first;
 153     FT_UInt   cache_count;
 154     FT_Byte   cache_fd;
 155
 156   } CFF_FD_Select;
 157
 158
 159   /* A SubFont packs a font dict and a private dict together. They are */
 160   /* needed to support CID-keyed CFF fonts.                            */
 161   typedef struct  CFF_SubFont_
 162   {
 163     CFF_Font_Dict  font_dict;
 164     CFF_Private    private_dict;
 165
 166     CFF_Index      local_subrs_index;
 167     FT_UInt        num_local_subrs;
 168     FT_Byte**      local_subrs;
 169
 170   } CFF_SubFont;
 171
 172
 173   /* maximum number of sub-fonts in a CID-keyed file */
 174 #define CFF_MAX_CID_FONTS  16
 175
 176
 177   typedef struct  CFF_Font_
 178   {
 179     FT_Stream      stream;
 180     FT_Memory      memory;
 181     FT_UInt        num_faces;
 182     FT_UInt        num_glyphs;
 183
 184     FT_Byte        version_major;
 185     FT_Byte        version_minor;
 186     FT_Byte        header_size;
 187     FT_Byte        absolute_offsize;
 188
 189
 190     CFF_Index      name_index;
 191     CFF_Index      top_dict_index;
 192     CFF_Index      string_index;
 193     CFF_Index      global_subrs_index;
 194
 195     /* we don't load the Encoding and CharSet tables */
 196
 197     CFF_Index      charstrings_index;
 198     CFF_Index      font_dict_index;
 199     CFF_Index      private_index;
 200     CFF_Index      local_subrs_index;
 201
 202     FT_String*     font_name;
 203     FT_UInt        num_global_subrs;
 204     FT_Byte**      global_subrs;
 205
 206     CFF_SubFont    top_font;
 207     FT_UInt        num_subfonts;
 208     CFF_SubFont*   subfonts[CFF_MAX_CID_FONTS];
 209
 210     CFF_FD_Select  fd_select;
 211
 212   } CFF_Font;
 213
 214
 215 #endif /* T2TYPES_H */
 216
 217
 218 /* END */