sfnt.h

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  /* <Input>                                                               */
  /*    face          :: The target face object.                           */
  /*                                                                       */
  /*    glyph_index   :: The glyph index.                                  */
  /*                                                                       */
  /*    strike_index  :: The current strike index.                         */
  /*                                                                       */
  /* <Output>                                                              */
  /*    arange        :: The SBit range containing the glyph index.        */
  /*                                                                       */
  /*    astrike       :: The SBit strike containing the glyph index.       */
  /*                                                                       */
  /*    aglyph_offset :: The offset of the glyph data in `EBDT' table.     */
  /*                                                                       */
  /* <Return>                                                              */
  /*    FreeType error code.  0 means success.  Returns                    */
  /*    SFNT_Err_Invalid_Argument if no sbit exists for the requested      */
  /*    glyph.                                                             */
  /*                                                                       */
  typedef FT_Error
  (*TT_Find_SBit_Image_Func)( TT_Face          face,
                              FT_UInt          glyph_index,
                              FT_ULong         strike_index,
                              TT_SBit_Range   *arange,
                              TT_SBit_Strike  *astrike,
                              FT_ULong        *aglyph_offset );


  /*************************************************************************/
  /*                                                                       */
  /* <FuncType>                                                            */
  /*    TT_Load_SBit_Metrics_Func                                          */
  /*                                                                       */
  /* <Description>                                                         */
  /*    Get the big metrics for a given embedded bitmap.                   */
  /*                                                                       */
  /* <Input>                                                               */
  /*    stream      :: The input stream.                                   */
  /*                                                                       */
  /*    range       :: The SBit range containing the glyph.                */
  /*                                                                       */
  /* <Output>                                                              */
  /*    big_metrics :: A big SBit metrics structure for the glyph.         */
  /*                                                                       */
  /* <Return>                                                              */
  /*    FreeType error code.  0 means success.                             */
  /*                                                                       */
  /* <Note>                                                                */
  /*    The stream cursor must be positioned at the glyph's offset within  */
  /*    the `EBDT' table before the call.                                  */
  /*                                                                       */
  /*    If the image format uses variable metrics, the stream cursor is    */
  /*    positioned just after the metrics header in the `EBDT' table on    */
  /*    function exit.                                                     */
  /*                                                                       */
  typedef FT_Error
  (*TT_Load_SBit_Metrics_Func)( FT_Stream        stream,
                                TT_SBit_Range    range,
                                TT_SBit_Metrics  metrics );


  /*************************************************************************/
  /*                                                                       */
  /* <FuncType>                                                            */
  /*    TT_Load_SBit_Image_Func                                            */
  /*                                                                       */
  /* <Description>                                                         */
  /*    Load a given glyph sbit image from the font resource.  This also   */
  /*    returns its metrics.                                               */
  /*                                                                       */
  /* <Input>                                                               */
  /*    face ::                                                            */
  /*      The target face object.                                          */
  /*                                                                       */
  /*    strike_index ::                                                    */
  /*      The strike index.                                                */
  /*                                                                       */
  /*    glyph_index ::                                                     */
  /*      The current glyph index.                                         */
  /*                                                                       */
  /*    load_flags ::                                                      */
  /*      The current load flags.                                          */
  /*                                                                       */
  /*    stream ::                                                          */
  /*      The input stream.                                                */
  /*                                                                       */
  /* <Output>                                                              */
  /*    amap ::                                                            */
  /*      The target pixmap.                                               */
  /*                                                                       */
  /*    ametrics ::                                                        */
  /*      A big sbit metrics structure for the glyph image.                */
  /*                                                                       */
  /* <Return>                                                              */
  /*    FreeType error code.  0 means success.  Returns an error if no     */
  /*    glyph sbit exists for the index.                                   */
  /*                                                                       */
  /*  <Note>                                                               */
  /*    The `map.buffer' field is always freed before the glyph is loaded. */
  /*                                                                       */
  typedef FT_Error
  (*TT_Load_SBit_Image_Func)( TT_Face              face,
                              FT_ULong             strike_index,
                              FT_UInt              glyph_index,
                              FT_UInt              load_flags,
                              FT_Stream            stream,
                              FT_Bitmap           *amap,
                              TT_SBit_MetricsRec  *ametrics );


#ifdef FT_CONFIG_OPTION_OLD_INTERNALS

  /*************************************************************************/
  /*                                                                       */
  /* <FuncType>                                                            */
  /*    TT_Set_SBit_Strike_OldFunc                                         */
  /*                                                                       */
  /* <Description>                                                         */
  /*    Select an sbit strike for a given size request.                    */
  /*                                                                       */
  /* <Input>                                                               */
  /*    face          :: The target face object.                           */
  /*                                                                       */
  /*    req           :: The size request.                                 */
  /*                                                                       */
  /* <Output>                                                              */
  /*    astrike_index :: The index of the sbit strike.                     */
  /*                                                                       */
  /* <Return>                                                              */
  /*    FreeType error code.  0 means success.  Returns an error if no     */
  /*    sbit strike exists for the selected ppem values.                   */
  /*                                                                       */
  typedef FT_Error
  (*TT_Set_SBit_Strike_OldFunc)( TT_Face    face,
                                 FT_UInt    x_ppem,
                                 FT_UInt    y_ppem,
                                 FT_ULong*  astrike_index );


  /*************************************************************************/
  /*                                                                       */
  /* <FuncType>                                                            */
  /*    TT_CharMap_Load_Func                                               */
  /*                                                                       */
  /* <Description>                                                         */
  /*    Loads a given TrueType character map into memory.                  */
  /*                                                                       */
  /* <Input>                                                               */
  /*    face   :: A handle to the parent face object.                      */
  /*                                                                       */
  /*    stream :: A handle to the current stream object.                   */
  /*                                                                       */
  /* <InOut>                                                               */
  /*    cmap   :: A pointer to a cmap object.                              */
  /*                                                                       */
  /* <Return>                                                              */
  /*    FreeType error code.  0 means success.                             */
  /*                                                                       */
  /* <Note>                                                                */
  /*    The function assumes that the stream is already in use (i.e.,      */
  /*    opened).  In case of error, all partially allocated tables are     */
  /*    released.                                                          */
  /*                                                                       */
  typedef FT_Error
  (*TT_CharMap_Load_Func)( TT_Face    face,
                           void*      cmap,
                           FT_Stream  input );


  /*************************************************************************/
  /*                                                                       */
  /* <FuncType>                                                            */
  /*    TT_CharMap_Free_Func                                               */
  /*                                                                       */
  /* <Description>                                                         */
  /*    Destroys a character mapping table.                                */
  /*                                                                       */
  /* <Input>                                                               */
  /*    face :: A handle to the parent face object.                        */
  /*                                                                       */
  /*    cmap :: A handle to a cmap object.                                 */
  /*                                                                       */
  /* <Return>                                                              */
  /*    FreeType error code.  0 means success.                             */
  /*                                                                       */
  typedef FT_Error
  (*TT_CharMap_Free_Func)( TT_Face       face,
                           void*         cmap );

#endif /* FT_CONFIG_OPTION_OLD_INTERNALS */


  /*************************************************************************/
  /*                                                                       */
  /* <FuncType>                                                            */
  /*    TT_Set_SBit_Strike_Func                                            */
  /*                                                                       */
  /* <Description>                                                         */
  /*    Select an sbit strike for a given size request.                    */
  /*                                                                       */
  /* <Input>                                                               */
  /*    face          :: The target face object.                           */
  /*                                                                       */
  /*    req           :: The size request.                                 */
  /*                                                                       */
  /* <Output>                                                              */
  /*    astrike_index :: The index of the sbit strike.                     */
  /*                                                                       */
  /* <Return>                                                              */
  /*    FreeType error code.  0 means success.  Returns an error if no     */
  /*    sbit strike exists for the selected ppem values.                   */
  /*                                                                       */
  typedef FT_Error
  (*TT_Set_SBit_Strike_Func)( TT_Face          face,
                              FT_Size_Request  req,
                              FT_ULong*        astrike_index );


  /*************************************************************************/
  /*                                                                       */
  /* <FuncType>                                                            */
  /*    TT_Load_Strike_Metrics_Func                                        */
  /*                                                                       */
  /* <Description>                                                         */
  /*    Load the metrics of a given strike.                                */
  /*                                                                       */
  /* <Input>                                                               */
  /*    face          :: The target face object.                           */
  /*                                                                       */
  /*    strike_index  :: The strike index.                                 */
  /*                                                                       */
  /* <Output>                                                              */
  /*    metrics       :: the metrics of the strike.                        */
  /*                                                                       */
  /* <Return>                                                              */
  /*    FreeType error code.  0 means success.  Returns an error if no     */
  /*    such sbit strike exists.                                           */
  /*                                                                       */
  typedef FT_Error
  (*TT_Load_Strike_Metrics_Func)( TT_Face           face,
                                  FT_ULong          strike_index,
                                  FT_Size_Metrics*  metrics );


  /*************************************************************************/
  /*                                                                       */
  /* <FuncType>                                                            */
  /*    TT_Get_PS_Name_Func                                                */
  /*                                                                       */
  /* <Description>                                                         */
  /*    Get the PostScript glyph name of a glyph.                          */
  /*                                                                       */
  /* <Input>                                                               */
  /*    idx  :: The glyph index.                                           */
  /*                                                                       */