src/freetype/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 1996-2000 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 T1TABLES_H
  21 #define T1TABLES_H
  22
  23
  24 #include <freetype/freetype.h>
  25
  26
  27   /* Note that we separate font data in T1_FontInfo and T1_Private */
  28   /* structures in order to support Multiple Master fonts.         */
  29
  30
  31   /*************************************************************************/
  32   /*                                                                       */
  33   /* <Struct>                                                              */
  34   /*    T1_FontInfo                                                        */
  35   /*                                                                       */
  36   /* <Description>                                                         */
  37   /*    A structure used to model a Type1/Type2 FontInfo dictionary.  Note */
  38   /*    that for Multiple Master fonts, each instance has its own          */
  39   /*    FontInfo.                                                          */
  40   /*                                                                       */
  41   typedef struct  T1_FontInfo
  42   {
  43     FT_String*  version;
  44     FT_String*  notice;
  45     FT_String*  full_name;
  46     FT_String*  family_name;
  47     FT_String*  weight;
  48     FT_Long     italic_angle;
  49     FT_Bool     is_fixed_pitch;
  50     FT_Short    underline_position;
  51     FT_UShort   underline_thickness;
  52
  53   } T1_FontInfo;
  54
  55
  56   /*************************************************************************/
  57   /*                                                                       */
  58   /* <Struct>                                                              */
  59   /*    T1_Private                                                         */
  60   /*                                                                       */
  61   /* <Description>                                                         */
  62   /*    A structure used to model a Type1/Type2 FontInfo dictionary.  Note */
  63   /*    that for Multiple Master fonts, each instance has its own Private  */
  64   /*    dict.                                                              */
  65   /*                                                                       */
  66   typedef struct  T1_Private
  67   {
  68     FT_Int     unique_id;
  69     FT_Int     lenIV;
  70
  71     FT_Byte    num_blue_values;
  72     FT_Byte    num_other_blues;
  73     FT_Byte    num_family_blues;
  74     FT_Byte    num_family_other_blues;
  75
  76     FT_Short   blue_values[14];
  77     FT_Short   other_blues[10];
  78
  79     FT_Short   family_blues      [14];
  80     FT_Short   family_other_blues[10];
  81
  82     FT_Fixed   blue_scale;
  83     FT_Int     blue_shift;
  84     FT_Int     blue_fuzz;
  85
  86     FT_UShort  standard_width[1];
  87     FT_UShort  standard_height[1];
  88
  89     FT_Byte    num_snap_widths;
  90     FT_Byte    num_snap_heights;
  91     FT_Bool    force_bold;
  92     FT_Bool    round_stem_up;
  93
  94     FT_Short   snap_widths [13];  /* reserve one place for the std */
  95     FT_Short   snap_heights[13];  /* reserve one place for the std */
  96
  97     FT_Long    language_group;
  98     FT_Long    password;
  99
 100     FT_Short   min_feature[2];
 101
 102   } T1_Private;
 103
 104
 105   /*************************************************************************/
 106   /*                                                                       */
 107   /* <Enum>                                                                */
 108   /*    T1_Blend_Flags                                                     */
 109   /*                                                                       */
 110   /* <Description>                                                         */
 111   /*    A set of flags used to indicate which fields are present in a      */
 112   /*    given blen dictionary (font info or private).  Used to support     */
 113   /*    Multiple Masters fonts.                                            */
 114   /*                                                                       */
 115   typedef enum
 116   {
 117     /* required fields in a FontInfo blend dictionary */
 118     t1_blend_underline_position = 0,
 119     t1_blend_underline_thickness,
 120     t1_blend_italic_angle,
 121
 122     /* required fields in a Private blend dictionary */
 123     t1_blend_blue_values,
 124     t1_blend_other_blues,
 125     t1_blend_standard_width,
 126     t1_blend_standard_height,
 127     t1_blend_stem_snap_widths,
 128     t1_blend_stem_snap_heights,
 129     t1_blend_blue_scale,
 130     t1_blend_blue_shift,
 131     t1_blend_family_blues,
 132     t1_blend_family_other_blues,
 133     t1_blend_force_bold,
 134
 135     /* never remove */
 136     t1_blend_max
 137
 138   } T1_Blend_Flags;
 139
 140
 141   /* maximum number of Multiple Masters designs, as defined in the spec */
 142 #define T1_MAX_MM_DESIGNS     16
 143
 144   /* maximum number of Multiple Masters axes, as defined in the spec */
 145 #define T1_MAX_MM_AXIS         4
 146
 147   /* maximum number of elements in a design map */
 148 #define T1_MAX_MM_MAP_POINTS  20
 149
 150
 151   /* this structure is used to store the BlendDesignMap entry for an axis */
 152   typedef struct  T1_DesignMap_
 153   {
 154     FT_Byte    num_points;
 155     FT_Fixed*  design_points;
 156     FT_Fixed*  blend_points;
 157
 158   } T1_DesignMap;
 159
 160
 161   typedef struct  T1_Blend_
 162   {
 163     FT_UInt       num_designs;
 164     FT_UInt       num_axis;
 165
 166     FT_String*    axis_names[T1_MAX_MM_AXIS];
 167     FT_Fixed*     design_pos[T1_MAX_MM_DESIGNS];
 168     T1_DesignMap  design_map[T1_MAX_MM_AXIS];
 169
 170     FT_Fixed*     weight_vector;
 171     FT_Fixed*     default_weight_vector;
 172
 173     T1_FontInfo*  font_infos[T1_MAX_MM_DESIGNS + 1];
 174     T1_Private*   privates  [T1_MAX_MM_DESIGNS + 1];
 175
 176     FT_ULong      blend_bitflags;
 177
 178   } T1_Blend;
 179
 180
 181   typedef struct  CID_FontDict_
 182   {
 183     T1_Private  private_dict;
 184
 185     FT_UInt     len_buildchar;
 186     FT_Fixed    forcebold_threshold;
 187     FT_Pos      stroke_width;
 188     FT_Fixed    expansion_factor;
 189
 190     FT_Byte     paint_type;
 191     FT_Byte     font_type;
 192     FT_Matrix   font_matrix;
 193
 194     FT_UInt     num_subrs;
 195     FT_ULong    subrmap_offset;
 196     FT_Int      sd_bytes;
 197
 198   } CID_FontDict;
 199
 200
 201   typedef struct  CID_Info_
 202   {
 203     FT_String*     cid_font_name;
 204     FT_Fixed       cid_version;
 205     FT_Int         cid_font_type;
 206
 207     FT_String*     registry;
 208     FT_String*     ordering;
 209     FT_Int         supplement;
 210
 211     T1_FontInfo    font_info;
 212     FT_BBox        font_bbox;
 213     FT_ULong       uid_base;
 214
 215     FT_Int         num_xuid;
 216     FT_ULong       xuid[16];
 217
 218
 219     FT_ULong       cidmap_offset;
 220     FT_Int         fd_bytes;
 221     FT_Int         gd_bytes;
 222     FT_ULong       cid_count;
 223
 224     FT_Int         num_dicts;
 225     CID_FontDict*  font_dicts;
 226
 227     FT_ULong       data_offset;
 228
 229   } CID_Info;
 230
 231
 232 #endif /* T1TABLES_H */
 233
 234
 235 /* END */