libraries/freetype-2.0.5/include/freetype/t1tables.h

   1 /***************************************************************************/
   2 /*                                                                         */
   3 /*  t1tables.h                                                             */
   4 /*                                                                         */
   5 /*    Basic Type 1/Type 2 tables definitions and interface (specification  */
   6 /*    only).                                                               */
   7 /*                                                                         */
   8 /*  Copyright 1996-2001 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 __T1TABLES_H__
  21 #define __T1TABLES_H__
  22
  23
  24 #include <ft2build.h>
  25 #include FT_FREETYPE_H
  26
  27
  28 FT_BEGIN_HEADER
  29
  30
  31   /*************************************************************************/
  32   /*                                                                       */
  33   /* <Section>                                                             */
  34   /*    type1_tables                                                       */
  35   /*                                                                       */
  36   /* <Title>                                                               */
  37   /*    Type 1 Tables                                                      */
  38   /*                                                                       */
  39   /* <Abstract>                                                            */
  40   /*    Type 1 (PostScript) specific font tables.                          */
  41   /*                                                                       */
  42   /* <Description>                                                         */
  43   /*    This section contains the definition of Type 1-specific tables,    */
  44   /*    including structures related to other PostScript font formats.     */
  45   /*                                                                       */
  46   /*************************************************************************/
  47
  48
  49   /* Note that we separate font data in T1_FontInfo and T1_Private */
  50   /* structures in order to support Multiple Master fonts.         */
  51
  52
  53   /*************************************************************************/
  54   /*                                                                       */
  55   /* <Struct>                                                              */
  56   /*    T1_FontInfo                                                        */
  57   /*                                                                       */
  58   /* <Description>                                                         */
  59   /*    A structure used to model a Type1/Type2 FontInfo dictionary.  Note */
  60   /*    that for Multiple Master fonts, each instance has its own          */
  61   /*    FontInfo.                                                          */
  62   /*                                                                       */
  63   typedef struct  T1_FontInfo
  64   {
  65     FT_String*  version;
  66     FT_String*  notice;
  67     FT_String*  full_name;
  68     FT_String*  family_name;
  69     FT_String*  weight;
  70     FT_Long     italic_angle;
  71     FT_Bool     is_fixed_pitch;
  72     FT_Short    underline_position;
  73     FT_UShort   underline_thickness;
  74
  75   } T1_FontInfo;
  76
  77
  78   /*************************************************************************/
  79   /*                                                                       */
  80   /* <Struct>                                                              */
  81   /*    T1_Private                                                         */
  82   /*                                                                       */
  83   /* <Description>                                                         */
  84   /*    A structure used to model a Type1/Type2 FontInfo dictionary.  Note */
  85   /*    that for Multiple Master fonts, each instance has its own Private  */
  86   /*    dict.                                                              */
  87   /*                                                                       */
  88   typedef struct  T1_Private
  89   {
  90     FT_Int     unique_id;
  91     FT_Int     lenIV;
  92
  93     FT_Byte    num_blue_values;
  94     FT_Byte    num_other_blues;
  95     FT_Byte    num_family_blues;
  96     FT_Byte    num_family_other_blues;
  97
  98     FT_Short   blue_values[14];
  99     FT_Short   other_blues[10];
 100
 101     FT_Short   family_blues      [14];
 102     FT_Short   family_other_blues[10];
 103
 104     FT_Fixed   blue_scale;
 105     FT_Int     blue_shift;
 106     FT_Int     blue_fuzz;
 107
 108     FT_UShort  standard_width[1];
 109     FT_UShort  standard_height[1];
 110
 111     FT_Byte    num_snap_widths;
 112     FT_Byte    num_snap_heights;
 113     FT_Bool    force_bold;
 114     FT_Bool    round_stem_up;
 115
 116     FT_Short   snap_widths [13];  /* including std width  */
 117     FT_Short   snap_heights[13];  /* including std height */
 118
 119     FT_Long    language_group;
 120     FT_Long    password;
 121
 122     FT_Short   min_feature[2];
 123
 124   } T1_Private;
 125
 126
 127   /*************************************************************************/
 128   /*                                                                       */
 129   /* <Enum>                                                                */
 130   /*    T1_Blend_Flags                                                     */
 131   /*                                                                       */
 132   /* <Description>                                                         */
 133   /*    A set of flags used to indicate which fields are present in a      */
 134   /*    given blen dictionary (font info or private).  Used to support     */
 135   /*    Multiple Masters fonts.                                            */
 136   /*                                                                       */
 137   typedef enum
 138   {
 139     /*# required fields in a FontInfo blend dictionary */
 140     t1_blend_underline_position = 0,
 141     t1_blend_underline_thickness,
 142     t1_blend_italic_angle,
 143
 144     /*# required fields in a Private blend dictionary */
 145     t1_blend_blue_values,
 146     t1_blend_other_blues,
 147     t1_blend_standard_width,
 148     t1_blend_standard_height,
 149     t1_blend_stem_snap_widths,
 150     t1_blend_stem_snap_heights,
 151     t1_blend_blue_scale,
 152     t1_blend_blue_shift,
 153     t1_blend_family_blues,
 154     t1_blend_family_other_blues,
 155     t1_blend_force_bold,
 156
 157     /*# never remove */
 158     t1_blend_max
 159
 160   } T1_Blend_Flags;
 161
 162
 163   /* maximum number of Multiple Masters designs, as defined in the spec */
 164 #define T1_MAX_MM_DESIGNS     16
 165
 166   /* maximum number of Multiple Masters axes, as defined in the spec */
 167 #define T1_MAX_MM_AXIS         4
 168
 169   /* maximum number of elements in a design map */
 170 #define T1_MAX_MM_MAP_POINTS  20
 171
 172
 173   /* this structure is used to store the BlendDesignMap entry for an axis */
 174   typedef struct  T1_DesignMap_
 175   {
 176     FT_Byte    num_points;
 177     FT_Fixed*  design_points;
 178     FT_Fixed*  blend_points;
 179
 180   } T1_DesignMap;
 181
 182
 183   typedef struct  T1_Blend_
 184   {
 185     FT_UInt       num_designs;
 186     FT_UInt       num_axis;
 187
 188     FT_String*    axis_names[T1_MAX_MM_AXIS];
 189     FT_Fixed*     design_pos[T1_MAX_MM_DESIGNS];
 190     T1_DesignMap  design_map[T1_MAX_MM_AXIS];
 191
 192     FT_Fixed*     weight_vector;
 193     FT_Fixed*     default_weight_vector;
 194
 195     T1_FontInfo*  font_infos[T1_MAX_MM_DESIGNS + 1];
 196     T1_Private*   privates  [T1_MAX_MM_DESIGNS + 1];
 197
 198     FT_ULong      blend_bitflags;
 199
 200   } T1_Blend;
 201
 202
 203   typedef struct  CID_FontDict_
 204   {
 205     T1_Private  private_dict;
 206
 207     FT_UInt     len_buildchar;
 208     FT_Fixed    forcebold_threshold;
 209     FT_Pos      stroke_width;
 210     FT_Fixed    expansion_factor;
 211
 212     FT_Byte     paint_type;
 213     FT_Byte     font_type;
 214     FT_Matrix   font_matrix;
 215     FT_Vector   font_offset;
 216
 217     FT_UInt     num_subrs;
 218     FT_ULong    subrmap_offset;
 219     FT_Int      sd_bytes;
 220
 221   } CID_FontDict;
 222
 223
 224   typedef struct  CID_Info_
 225   {
 226     FT_String*     cid_font_name;
 227     FT_Fixed       cid_version;
 228     FT_Int         cid_font_type;
 229
 230     FT_String*     registry;
 231     FT_String*     ordering;
 232     FT_Int         supplement;
 233
 234     T1_FontInfo    font_info;
 235     FT_BBox        font_bbox;
 236     FT_ULong       uid_base;
 237
 238     FT_Int         num_xuid;
 239     FT_ULong       xuid[16];
 240
 241
 242     FT_ULong       cidmap_offset;
 243     FT_Int         fd_bytes;
 244     FT_Int         gd_bytes;
 245     FT_ULong       cid_count;
 246
 247     FT_Int         num_dicts;
 248     CID_FontDict*  font_dicts;
 249
 250     FT_ULong       data_offset;
 251
 252   } CID_Info;
 253
 254
 255   /* */
 256
 257
 258 FT_END_HEADER
 259
 260 #endif /* __T1TABLES_H__ */
 261
 262
 263 /* END */