t1gload.h

Qt/Embedded是一个多平台的C++图形用户界面应用程序框架

    op_sbw,
    op_closepath,
    op_hlineto,
    op_hmoveto,
    op_hvcurveto,
    op_rlineto,
    op_rmoveto,
    op_rrcurveto,
    op_vhcurveto,
    op_vlineto,
    op_vmoveto,
    op_dotsection,
    op_hstem,
    op_hstem3,
    op_vstem,
    op_vstem3,
    op_div,
    op_callothersubr,
    op_callsubr,
    op_pop,
    op_return,
    op_setcurrentpoint,

    op_max    /* never remove this one */

  } T1_Operator;




  /* execution context charstring zone */
  typedef struct T1_Decoder_Zone_
  {
    T1_Byte*  base;
    T1_Byte*  limit;
    T1_Byte*  cursor;

  } T1_Decoder_Zone;


  typedef struct T1_Decoder_
  {
    T1_Builder         builder;
    T1_Hinter_Funcs    hinter;

    T1_Int             stack[ T1_MAX_CHARSTRINGS_OPERANDS ];
    T1_Int*            top;

    T1_Decoder_Zone    zones[ T1_MAX_SUBRS_CALLS+1 ];
    T1_Decoder_Zone*   zone;

    T1_Int             flex_state;
    T1_Int             num_flex_vectors;
    T1_Vector          flex_vectors[7];

  } T1_Decoder;



/*********************************************************************
 *
 * <Function>
 *    T1_Init_Builder
 *
 * <Description>
 *    Initialise a given glyph builder.
 *
 * <Input>
 *    builder :: glyph builder to initialise
 *    face    :: current face object
 *    size    :: current size object
 *    glyph   :: current glyph object
 *    funcs   :: glyph builder functions (or "methods").
 *
 * <Note>
 *    This function is exported for now because it is used by the
 *    "t1dump" utility. Later, it will be accessed through a
 *    format-specific extension
 *
 *********************************************************************/

  EXPORT_DEF
  void  T1_Init_Builder( T1_Builder*             builder,
                         T1_Face                 face,
                         T1_Size                 size,
                         T1_GlyphSlot            glyph,
                         const T1_Builder_Funcs* funcs );

/*********************************************************************
 *
 * <Function>
 *    T1_Done_Builder
 *
 * <Description>
 *    Finalise a given glyph builder. Its content can still be
 *    used after the call, but the function saves important information
 *    within the corresponding glyph slot.
 *
 * <Input>
 *    builder :: glyph builder to initialise
 *
 * <Note>
 *    This function is exported for now because it is used by the
 *    "t1dump" utility. Later, it will be accessed through a
 *    format-specific extension
 *
 *********************************************************************/

  EXPORT_DEF
  void T1_Done_Builder( T1_Builder*  builder );


/*********************************************************************
 *
 * <Function>
 *    T1_Init_Decoder
 *
 * <Description>
 *    Initialise a given Type 1 decoder for parsing
 *
 * <Input>
 *    decoder :: Type 1 decoder to initialise
 *    funcs   :: hinter functions interface
 *
 * <Note>
 *    This function is exported for now because it is used by the
 *    "t1dump" utility. Later, it will be accessed through a
 *    format-specific extension
 *
 *********************************************************************/

  EXPORT_DEF
  void  T1_Init_Decoder( T1_Decoder*             decoder,
                         const T1_Hinter_Funcs*  funcs );



  /* Compute the maximum advance width of a font through quick parsing */
  LOCAL_DEF
  T1_Error  T1_Compute_Max_Advance( T1_Face  face,
                                    T1_Int  *max_advance );


  /* This function is exported, because it is used by the T1Dump utility */
  EXPORT_DEF
  T1_Error   T1_Parse_CharStrings( T1_Decoder*  decoder,
                                   T1_Byte*     charstring_base,
                                   T1_Int       charstring_len,
                                   T1_Int       num_subrs,
                                   T1_Byte**    subrs_base,
                                   T1_Int*      subrs_len );



/*************************************************************************/
/*                                                                       */
/* <Function> T1_Add_Points                                              */
/*                                                                       */
/* <Description>                                                         */
/*    Checks that there is enough room in the current load glyph outline */
/*    to accept "num_points" additional outline points. If not, this     */
/*    function grows the load outline's arrays accordingly..             */
/*                                                                       */
/* <Input>                                                               */
/*    builder    :: pointer to glyph builder object                      */
/*    num_points :: number of points that will be added later            */
/*                                                                       */
/* <Return>                                                              */
/*    Type1 error code. 0 means success                                  */
/*                                                                       */
/* <Note>                                                                */
/*    This function does NOT update the points count in the glyph loader */
/*    This must be done by the caller itself, after this function is     */
/*    invoked..                                                          */
/*                                                                       */
  LOCAL_DEF
  T1_Error  T1_Add_Points( T1_Builder*  builder,
                           T1_Int       num_points );

/*************************************************************************/
/*                                                                       */
/* <Function> T1_Add_Contours                                            */
/*                                                                       */
/* <Description>                                                         */
/*    Checks that there is enough room in the current load glyph outline */
/*    to accept "num_contours" additional contours. If not, this func    */
/*    the load outline's arrays accordingly..                            */
/*                                                                       */
/* <Input>                                                               */
/*    builder      :: pointer to glyph builder object                    */
/*    num_contours :: number of contours that will be added later        */
/*                                                                       */
/* <Return>                                                              */
/*    Type1 error code. 0 means success                                  */
/*                                                                       */
/* <Note>                                                                */
/*    This function does NOT update the contours count in the load glyph */
/*    This must be done by the caller itself, after this function is     */
/*    invoked..                                                          */
/*                                                                       */
  LOCAL_DEF
  T1_Error  T1_Add_Contours( T1_Builder*  builder,
                             T1_Int       num_contours );


  LOCAL_DEF
  T1_Error  T1_Load_Glyph( T1_GlyphSlot  glyph,
                           T1_Size       size,
                           T1_Int        glyph_index,
                           T1_Int        load_flags );


#ifdef __cplusplus
  }
#endif

#endif /* T1GLOAD_H */