psaux.h

附上freetype2.1.10的源代码,这个和上面传的是一起的

                   FT_ULong*       pflags );

    FT_Error
    (*load_field_table)( PS_Parser       parser,
                         const T1_Field  field,
                         void**          objects,
                         FT_UInt         max_objects,
                         FT_ULong*       pflags );

  } PS_Parser_FuncsRec;


  /*************************************************************************/
  /*                                                                       */
  /* <Struct>                                                              */
  /*    PS_ParserRec                                                       */
  /*                                                                       */
  /* <Description>                                                         */
  /*    A PS_Parser is an object used to parse a Type 1 font very quickly. */
  /*                                                                       */
  /* <Fields>                                                              */
  /*    cursor :: The current position in the text.                        */
  /*                                                                       */
  /*    base   :: Start of the processed text.                             */
  /*                                                                       */
  /*    limit  :: End of the processed text.                               */
  /*                                                                       */
  /*    error  :: The last error returned.                                 */
  /*                                                                       */
  /*    memory :: The object used for memory operations (alloc/realloc).   */
  /*                                                                       */
  /*    funcs  :: A table of functions for the parser.                     */
  /*                                                                       */
  typedef struct  PS_ParserRec_
  {
    FT_Byte*   cursor;
    FT_Byte*   base;
    FT_Byte*   limit;
    FT_Error   error;
    FT_Memory  memory;

    PS_Parser_FuncsRec  funcs;

  } PS_ParserRec;


  /*************************************************************************/
  /*************************************************************************/
  /*****                                                               *****/
  /*****                         T1 BUILDER                            *****/
  /*****                                                               *****/
  /*************************************************************************/
  /*************************************************************************/


  typedef struct T1_BuilderRec_*  T1_Builder;


  typedef FT_Error
  (*T1_Builder_Check_Points_Func)( T1_Builder  builder,
                                   FT_Int      count );

  typedef void
  (*T1_Builder_Add_Point_Func)( T1_Builder  builder,
                                FT_Pos      x,
                                FT_Pos      y,
                                FT_Byte     flag );

  typedef FT_Error
  (*T1_Builder_Add_Point1_Func)( T1_Builder  builder,
                                 FT_Pos      x,
                                 FT_Pos      y );

  typedef FT_Error
  (*T1_Builder_Add_Contour_Func)( T1_Builder  builder );

  typedef FT_Error
  (*T1_Builder_Start_Point_Func)( T1_Builder  builder,
                                  FT_Pos      x,
                                  FT_Pos      y );

  typedef void
  (*T1_Builder_Close_Contour_Func)( T1_Builder  builder );


  typedef const struct T1_Builder_FuncsRec_*  T1_Builder_Funcs;

  typedef struct  T1_Builder_FuncsRec_
  {
    void
    (*init)( T1_Builder    builder,
             FT_Face       face,
             FT_Size       size,
             FT_GlyphSlot  slot,
             FT_Bool       hinting );

    void
    (*done)( T1_Builder   builder );

    T1_Builder_Check_Points_Func   check_points;
    T1_Builder_Add_Point_Func      add_point;
    T1_Builder_Add_Point1_Func     add_point1;
    T1_Builder_Add_Contour_Func    add_contour;
    T1_Builder_Start_Point_Func    start_point;
    T1_Builder_Close_Contour_Func  close_contour;

  } T1_Builder_FuncsRec;


  /* an enumeration type to handle charstring parsing states */
  typedef enum  T1_ParseState_
  {
    T1_Parse_Start,
    T1_Parse_Have_Width,
    T1_Parse_Have_Moveto,
    T1_Parse_Have_Path

  } T1_ParseState;


  /*************************************************************************/
  /*                                                                       */
  /* <Structure>                                                           */
  /*    T1_BuilderRec                                                      */
  /*                                                                       */
  /* <Description>                                                         */
  /*     A structure used during glyph loading to store its outline.       */
  /*                                                                       */
  /* <Fields>                                                              */
  /*    memory       :: The current memory object.                         */
  /*                                                                       */
  /*    face         :: The current face object.                           */
  /*                                                                       */
  /*    glyph        :: The current glyph slot.                            */
  /*                                                                       */
  /*    loader       :: XXX                                                */
  /*                                                                       */
  /*    base         :: The base glyph outline.                            */
  /*                                                                       */
  /*    current      :: The current glyph outline.                         */
  /*                                                                       */
  /*    max_points   :: maximum points in builder outline                  */
  /*                                                                       */
  /*    max_contours :: Maximal number of contours in builder outline.     */
  /*                                                                       */
  /*    last         :: The last point position.                           */
  /*                                                                       */
  /*    scale_x      :: The horizontal scale (FUnits to sub-pixels).       */
  /*                                                                       */
  /*    scale_y      :: The vertical scale (FUnits to sub-pixels).         */
  /*                                                                       */
  /*    pos_x        :: The horizontal translation (if composite glyph).   */
  /*                                                                       */
  /*    pos_y        :: The vertical translation (if composite glyph).     */
  /*                                                                       */
  /*    left_bearing :: The left side bearing point.                       */
  /*                                                                       */
  /*    advance      :: The horizontal advance vector.                     */
  /*                                                                       */
  /*    bbox         :: Unused.                                            */
  /*                                                                       */
  /*    parse_state  :: An enumeration which controls the charstring       */
  /*                    parsing state.                                     */
  /*                                                                       */
  /*    load_points  :: If this flag is not set, no points are loaded.     */
  /*                                                                       */
  /*    no_recurse   :: Set but not used.                                  */
  /*                                                                       */
  /*    metrics_only :: A boolean indicating that we only want to compute  */
  /*                    the metrics of a given glyph, not load all of its  */
  /*                    points.                                            */
  /*                                                                       */
  /*    funcs        :: An array of function pointers for the builder.     */
  /*                                                                       */
  typedef struct  T1_BuilderRec_
  {
    FT_Memory       memory;
    FT_Face         face;
    FT_GlyphSlot    glyph;
    FT_GlyphLoader  loader;
    FT_Outline*     base;
    FT_Outline*     current;

    FT_Vector       last;

    FT_Fixed        scale_x;
    FT_Fixed        scale_y;

    FT_Pos          pos_x;
    FT_Pos          pos_y;

    FT_Vector       left_bearing;
    FT_Vector       advance;

    FT_BBox         bbox;          /* bounding box */
    T1_ParseState   parse_state;
    FT_Bool         load_points;
    FT_Bool         no_recurse;
    FT_Bool         shift;

    FT_Bool         metrics_only;

    void*           hints_funcs;    /* hinter-specific */
    void*           hints_globals;  /* hinter-specific */

    T1_Builder_FuncsRec  funcs;

  } T1_BuilderRec;


  /*************************************************************************/
  /*************************************************************************/
  /*****                                                               *****/
  /*****                         T1 DECODER                            *****/
  /*****                                                               *****/
  /*************************************************************************/
  /*************************************************************************/

#if 0

  /*************************************************************************/
  /*                                                                       */
  /* T1_MAX_SUBRS_CALLS details the maximum number of nested sub-routine   */
  /* calls during glyph loading.                                           */
  /*                                                                       */
#define T1_MAX_SUBRS_CALLS  8


  /*************************************************************************/
  /*                                                                       */
  /* T1_MAX_CHARSTRING_OPERANDS is the charstring stack's capacity.  A     */
  /* minimum of 16 is required.                                            */
  /*                                                                       */
#define T1_MAX_CHARSTRINGS_OPERANDS  32

#endif /* 0 */


  typedef struct  T1_Decoder_ZoneRec_
  {
    FT_Byte*  cursor;
    FT_Byte*  base;
    FT_Byte*  limit;

  } T1_Decoder_ZoneRec, *T1_Decoder_Zone;


  typedef struct T1_DecoderRec_*              T1_Decoder;
  typedef const struct T1_Decoder_FuncsRec_*  T1_Decoder_Funcs;


  typedef FT_Error
  (*T1_Decoder_Callback)( T1_Decoder  decoder,
                          FT_UInt     glyph_index );


  typedef struct  T1_Decoder_FuncsRec_
  {
    FT_Error
    (*init)( T1_Decoder           decoder,
             FT_Face              face,
             FT_Size              size,
             FT_GlyphSlot         slot,
             FT_Byte**            glyph_names,
             PS_Blend             blend,
             FT_Bool              hinting,
             FT_Render_Mode       hint_mode,
             T1_Decoder_Callback  callback );

    void
    (*done)( T1_Decoder  decoder );

    FT_Error
    (*parse_charstrings)( T1_Decoder  decoder,
                          FT_Byte*    base,
                          FT_UInt     len );

  } T1_Decoder_FuncsRec;


  typedef struct  T1_DecoderRec_
  {
    T1_BuilderRec        builder;

    FT_Long              stack[T1_MAX_CHARSTRINGS_OPERANDS];
    FT_Long*             top;

    T1_Decoder_ZoneRec   zones[T1_MAX_SUBRS_CALLS + 1];
    T1_Decoder_Zone      zone;

    FT_Service_PsCMaps   psnames;      /* for seac */
    FT_UInt              num_glyphs;
    FT_Byte**            glyph_names;

    FT_Int               lenIV;        /* internal for sub routine calls */
    FT_UInt              num_subrs;
    FT_Byte**            subrs;
    FT_PtrDist*          subrs_len;    /* array of subrs length (optional) */

    FT_Matrix            font_matrix;
    FT_Vector            font_offset;

    FT_Int               flex_state;
    FT_Int               num_flex_vectors;
    FT_Vector            flex_vectors[7];

    PS_Blend             blend;       /* for multiple master support */

    FT_Render_Mode       hint_mode;

    T1_Decoder_Callback  parse_callback;
    T1_Decoder_FuncsRec  funcs;

  } T1_DecoderRec;


  /*************************************************************************/
  /*************************************************************************/
  /*****                                                               *****/
  /*****                     TYPE1 CHARMAPS                            *****/
  /*****                                                               *****/
  /*************************************************************************/
  /*************************************************************************/

  typedef const struct T1_CMap_ClassesRec_*  T1_CMap_Classes;

  typedef struct T1_CMap_ClassesRec_
  {
    FT_CMap_Class  standard;
    FT_CMap_Class  expert;
    FT_CMap_Class  custom;
    FT_CMap_Class  unicode;

  } T1_CMap_ClassesRec;


  /*************************************************************************/
  /*************************************************************************/
  /*****                                                               *****/
  /*****                        PSAux Module Interface                 *****/
  /*****                                                               *****/
  /*************************************************************************/
  /*************************************************************************/

  typedef struct  PSAux_ServiceRec_
  {
    /* don't use `PS_Table_Funcs' and friends to avoid compiler warnings */
    const PS_Table_FuncsRec*    ps_table_funcs;
    const PS_Parser_FuncsRec*   ps_parser_funcs;
    const T1_Builder_FuncsRec*  t1_builder_funcs;
    const T1_Decoder_FuncsRec*  t1_decoder_funcs;

    void
    (*t1_decrypt)( FT_Byte*   buffer,
                   FT_Offset  length,
                   FT_UShort  seed );

    T1_CMap_Classes  t1_cmap_classes;

  } PSAux_ServiceRec, *PSAux_Service;

  /* backwards-compatible type definition */
  typedef PSAux_ServiceRec   PSAux_Interface;

FT_END_HEADER

#endif /* __PSAUX_H__ */


/* END */