kc3-lang/freetype/src/shared/autohint.h

• Show log

  Commit

• Hash : 8ce47b1d
  Author :
  Date : 2000-04-25T16:09:55
  

  added new auto-hinter driver interface ! modified tttypes.h to use the new "include/tttables.h"

Download

• src/shared/autohint.h

• /***************************************************************************/
  /*                                                                         */
  /*  autohint.h                                                             */
  /*                                                                         */
  /*    High-level `autohint" driver interface (specification)               */
  /*                                                                         */
  /*  Copyright 1996-2000 by                                                 */
  /*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
  /*                                                                         */
  /*  This file is part of the FreeType project, and may only be used,       */
  /*  modified, and distributed under the terms of the FreeType project      */
  /*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
  /*  this file you indicate that you have read the license and              */
  /*  understand and accept it fully.                                        */
  /*                                                                         */
  /*                                                                         */
  /*  The auto-hinter is used to load and automatically hint glyphs          */
  /*  when a format-specific hinter isn't available..                        */
  /*                                                                         */
  /***************************************************************************/
  
  #ifndef AUTOHINT_H
  #define AUTOHINT_H
  
  #include <freetype.h>
  
   /***********************************************************************
    *
    * <FuncType>
    *    FT_AutoHinter_Init_Func
    *
    * <Description>
    *    Each face can have its own auto-hinter object. This function
    *    is used to initialise it. Its role is to perform a few statistics
    *    on the face's content in order to compute global metrics like
    *    blue zones and standard width/heights.
    *
    * <Input>
    *    face  :: handle to the face.
    *
    * <Note>
    *    this function will call FT_Load_Glyph several times in order to
    *    compute various statistics on the face's glyphs. This means that
    *    the face handle must be valid when calling it.
    *
    *    This function set the "hinter" and "hinter_len" fields of 'face'.
    */
    typedef  FT_Error    (*FT_AutoHinter_Init_Func)( FT_Face  face );
  
  
   /***********************************************************************
    *
    * <FuncType>
    *    FT_AutoHinter_Done_Func
    *
    * <Description>
    *    Each face can have its own auto-hinter object. This function
    *    is used to finalise and destroy it.
    *
    * <Input>
    *    face  :: handle to the face.
    *
    * <Note>
    *    This function clears the "hinter" and "hinter_len" fields of
    *    "face". However, the face object is still valid and can be used
    *    to load un-hinted glyphs..
    *
    */
    typedef  void        (*FT_AutoHinter_Done_Func)( FT_Face  face );
  
  
   /***********************************************************************
    *
    * <FuncType>
    *    FT_AutoHinter_Load_Func
    *
    * <Description>
    *    This function is used to load, scale and automatically hint a glyph
    *    from a given face.
    *
    * <Input>
    *    face        :: handle to the face.
    *    glyph_index :: glyph index
    *    load_flags  :: load flags
    *
    * <Note>
    *    This function is capable of loading composite glyphs by hinting
    *    each sub-glyph independently (which improves quality).
    *
    *    It will call the font driver with FT_Load_Glyph, with FT_LOAD_NO_SCALE
    *    set..
    *
    */
    typedef  FT_Error    (*FT_AutoHinter_Load_Func)( FT_Face   face,
                                                     FT_UInt   glyph_index,
     					           FT_ULong  load_flags );
  
   /***********************************************************************
    *
    * <Struct>
    *    FT_AutoHinter_Interface
    *
    * <Description>
    *    The auto-hinter module's interface.
    *
    */
    typedef struct FT_AutoHinter_Interface
    {
      FT_AutoHinter_Init_Func   init_autohinter;
      FT_AutoHinter_Done_Func   done_autohinter;
      FT_AutoHinter_Load_Func   load_glyph;
  
    } FT_AutoHinter_Interface;					 
  
  #endif /* AUTOHINT_H */
  
  
  

Download