tttypes.h

这是osg的第三方插件库

  typedef struct  TT_SBit_StrikeRec_
  {
    FT_Int                  num_ranges;
    TT_SBit_Range           sbit_ranges;
    FT_ULong                ranges_offset;

    FT_ULong                color_ref;

    TT_SBit_LineMetricsRec  hori;
    TT_SBit_LineMetricsRec  vert;

    FT_UShort               start_glyph;
    FT_UShort               end_glyph;

    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


  /*************************************************************************/
  /*************************************************************************/
  /*************************************************************************/
  /***                                                                   ***/
  /***                                                                   ***/
  /***                  ORIGINAL TT_FACE CLASS DEFINITION                ***/
  /***                                                                   ***/
  /***                                                                   ***/
  /*************************************************************************/
  /*************************************************************************/
  /*************************************************************************/


  /*************************************************************************/
  /*                                                                       */
  /* This structure/class is defined here because it is common to the      */
  /* following formats: TTF, OpenType-TT, and OpenType-CFF.                */
  /*                                                                       */
  /* Note, however, that the classes TT_Size and TT_GlyphSlot are not      */
  /* shared between font drivers, and are thus defined in `ttobjs.h'.      */
  /*                                                                       */
  /*************************************************************************/