tttypes.h

可以在hge引擎中显示中文字体

    FT_Byte                 x_ppem;
    FT_Byte                 y_ppem;

    FT_Byte                 bit_depth;
    FT_Char                 flags;

  } TT_SBit_StrikeRec, *TT_SBit_Strike;


  /*************************************************************************/
  /*                                                                       */
  /* <Struct>                                                              */
  /*    TT_SBit_ComponentRec                                               */
  /*                                                                       */
  /* <Description>                                                         */
  /*    A simple structure to describe a compound sbit element.            */
  /*                                                                       */
  /* <Fields>                                                              */
  /*    glyph_code :: The element's glyph index.                           */
  /*                                                                       */
  /*    x_offset   :: The element's left bearing.                          */
  /*                                                                       */
  /*    y_offset   :: The element's top bearing.                           */
  /*                                                                       */
  typedef struct  TT_SBit_ComponentRec_
  {
    FT_UShort  glyph_code;
    FT_Char    x_offset;
    FT_Char    y_offset;

  } TT_SBit_ComponentRec, *TT_SBit_Component;


  /*************************************************************************/
  /*                                                                       */
  /* <Struct>                                                              */
  /*    TT_SBit_ScaleRec                                                   */
  /*                                                                       */
  /* <Description>                                                         */
  /*    A structure used describe a given bitmap scaling table, as defined */
  /*    in the `EBSC' table.                                               */
  /*                                                                       */
  /* <Fields>                                                              */
  /*    hori              :: The horizontal line metrics.                  */
  /*                                                                       */
  /*    vert              :: The vertical line metrics.                    */
  /*                                                                       */
  /*    x_ppem            :: The number of horizontal pixels per EM.       */
  /*                                                                       */
  /*    y_ppem            :: The number of vertical pixels per EM.         */
  /*                                                                       */
  /*    x_ppem_substitute :: Substitution x_ppem value.                    */
  /*                                                                       */
  /*    y_ppem_substitute :: Substitution y_ppem value.                    */
  /*                                                                       */
  typedef struct  TT_SBit_ScaleRec_
  {
    TT_SBit_LineMetricsRec  hori;
    TT_SBit_LineMetricsRec  vert;

    FT_Byte                 x_ppem;
    FT_Byte                 y_ppem;

    FT_Byte                 x_ppem_substitute;
    FT_Byte                 y_ppem_substitute;

  } TT_SBit_ScaleRec, *TT_SBit_Scale;


  /*************************************************************************/
  /*************************************************************************/
  /*************************************************************************/
  /***                                                                   ***/
  /***                                                                   ***/
  /***                  POSTSCRIPT GLYPH NAMES SUPPORT                   ***/
  /***                                                                   ***/
  /***                                                                   ***/
  /*************************************************************************/
  /*************************************************************************/
  /*************************************************************************/


  /*************************************************************************/
  /*                                                                       */
  /* <Struct>                                                              */
  /*    TT_Post_20Rec                                                      */
  /*                                                                       */
  /* <Description>                                                         */
  /*    Postscript names sub-table, format 2.0.  Stores the PS name of     */
  /*    each glyph in the font face.                                       */
  /*                                                                       */
  /* <Fields>                                                              */
  /*    num_glyphs    :: The number of named glyphs in the table.          */
  /*                                                                       */
  /*    num_names     :: The number of PS names stored in the table.       */
  /*                                                                       */
  /*    glyph_indices :: The indices of the glyphs in the names arrays.    */
  /*                                                                       */
  /*    glyph_names   :: The PS names not in Mac Encoding.                 */
  /*                                                                       */
  typedef struct  TT_Post_20Rec_
  {
    FT_UShort   num_glyphs;
    FT_UShort   num_names;
    FT_UShort*  glyph_indices;
    FT_Char**   glyph_names;

  } TT_Post_20Rec, *TT_Post_20;


  /*************************************************************************/
  /*                                                                       */
  /* <Struct>                                                              */
  /*    TT_Post_25Rec                                                      */
  /*                                                                       */
  /* <Description>                                                         */
  /*    Postscript names sub-table, format 2.5.  Stores the PS name of     */
  /*    each glyph in the font face.                                       */
  /*                                                                       */
  /* <Fields>                                                              */
  /*    num_glyphs :: The number of glyphs in the table.                   */
  /*                                                                       */
  /*    offsets    :: An array of signed offsets in a normal Mac           */
  /*                  Postscript name encoding.                            */
  /*                                                                       */
  typedef struct  TT_Post_25_
  {
    FT_UShort  num_glyphs;
    FT_Char*   offsets;

  } TT_Post_25Rec, *TT_Post_25;


  /*************************************************************************/
  /*                                                                       */
  /* <Struct>                                                              */
  /*    TT_Post_NamesRec                                                   */
  /*                                                                       */
  /* <Description>                                                         */
  /*    Postscript names table, either format 2.0 or 2.5.                  */
  /*                                                                       */
  /* <Fields>                                                              */
  /*    loaded    :: A flag to indicate whether the PS names are loaded.   */
  /*                                                                       */
  /*    format_20 :: The sub-table used for format 2.0.                    */
  /*                                                                       */
  /*    format_25 :: The sub-table used for format 2.5.                    */
  /*                                                                       */
  typedef struct  TT_Post_NamesRec_
  {
    FT_Bool  loaded;

    union
    {
      TT_Post_20Rec  format_20;
      TT_Post_25Rec  format_25;

    } names;

  } TT_Post_NamesRec, *TT_Post_Names;


  /*************************************************************************/
  /*************************************************************************/
  /*************************************************************************/
  /***                                                                   ***/
  /***                                                                   ***/
  /***                    GX VARIATION TABLE SUPPORT                     ***/
  /***                                                                   ***/
  /***                                                                   ***/
  /*************************************************************************/
  /*************************************************************************/
  /*************************************************************************/


#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT
  typedef struct GX_BlendRec_  *GX_Blend;
#endif

  /*************************************************************************/
  /*************************************************************************/
  /*************************************************************************/
  /***                                                                   ***/
  /***                                                                   ***/
  /***              EMBEDDED BDF PROPERTIES TABLE SUPPORT                ***/
  /***                                                                   ***/
  /***                                                                   ***/
  /*************************************************************************/
  /*************************************************************************/
  /*************************************************************************/

  /*
   * These types are used to support a `BDF ' table that isn't part of the
   * official TrueType specification.  It is mainly used in SFNT-based
   * bitmap fonts that were generated from a set of BDF fonts.
   *
   * The format of the table is as follows.
   *
   *   USHORT   version      `BDF ' table version number, should be 0x0001.
   *   USHORT   strikeCount  Number of strikes (bitmap sizes) in this table.
   *   ULONG    stringTable  Offset (from start of BDF table) to string
   *                         table.
   *
   * This is followed by an array of `strikeCount' descriptors, having the
   * following format.
   *
   *   USHORT   ppem         Vertical pixels per EM for this strike.
   *   USHORT   numItems     Number of items for this strike (properties and
   *                         atoms).  Maximum is 255.
   *
   * This array in turn is followed by `strikeCount' value sets.  Each
   * `value set' is an array of `numItems' items with the following format.
   *
   *   ULONG    item_name    Offset in string table to item name.
   *   USHORT   item_type    The item type.  Possible values are
   *                            0 => string (e.g., COMMENT)
   *                            1 => atom   (e.g., FONT or even SIZE)
   *                            2 => int32
   *                            3 => uint32
   *                         0x10 => A flag to indicate a properties.  This
   *                                 is ORed with the above values.
   *   ULONG    item_value   For strings  => Offset into string table without