ftobjs.h

附上freetype2.1.10的源代码,这个和上面传的是一起的

/***************************************************************************/
/*                                                                         */
/*  ftobjs.h                                                               */
/*                                                                         */
/*    The FreeType private base classes (specification).                   */
/*                                                                         */
/*  Copyright 1996-2001, 2002, 2003, 2004, 2005 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.                                        */
/*                                                                         */
/***************************************************************************/


  /*************************************************************************/
  /*                                                                       */
  /*  This file contains the definition of all internal FreeType classes.  */
  /*                                                                       */
  /*************************************************************************/


#ifndef __FTOBJS_H__
#define __FTOBJS_H__

#include <ft2build.h>
#include FT_RENDER_H
#include FT_SIZES_H
#include FT_INTERNAL_MEMORY_H
#include FT_INTERNAL_GLYPH_LOADER_H
#include FT_INTERNAL_DRIVER_H
#include FT_INTERNAL_AUTOHINT_H
#include FT_INTERNAL_SERVICE_H

#ifdef FT_CONFIG_OPTION_INCREMENTAL
#include FT_INCREMENTAL_H
#endif


FT_BEGIN_HEADER


  /*************************************************************************/
  /*                                                                       */
  /* Some generic definitions.                                             */
  /*                                                                       */
#ifndef TRUE
#define TRUE  1
#endif

#ifndef FALSE
#define FALSE  0
#endif

#ifndef NULL
#define NULL  (void*)0
#endif


  /*************************************************************************/
  /*                                                                       */
  /* The min and max functions missing in C.  As usual, be careful not to  */
  /* write things like FT_MIN( a++, b++ ) to avoid side effects.           */
  /*                                                                       */
#define FT_MIN( a, b )  ( (a) < (b) ? (a) : (b) )
#define FT_MAX( a, b )  ( (a) > (b) ? (a) : (b) )

#define FT_ABS( a )     ( (a) < 0 ? -(a) : (a) )


#define FT_PAD_FLOOR( x, n )  ( (x) & ~((n)-1) )
#define FT_PAD_ROUND( x, n )  FT_PAD_FLOOR( (x) + ((n)/2), n )
#define FT_PAD_CEIL( x, n )   FT_PAD_FLOOR( (x) + ((n)-1), n )

#define FT_PIX_FLOOR( x )     ( (x) & ~63 )
#define FT_PIX_ROUND( x )     FT_PIX_FLOOR( (x) + 32 )
#define FT_PIX_CEIL( x )      FT_PIX_FLOOR( (x) + 63 )


  /*
   *  Return the highest power of 2 that is <= value; this correspond to
   *  the highest bit in a given 32-bit value.
   */
  FT_BASE( FT_UInt32 )
  ft_highpow2( FT_UInt32  value );


  /*************************************************************************/
  /*************************************************************************/
  /*************************************************************************/
  /****                                                                 ****/
  /****                                                                 ****/
  /****                       C H A R M A P S                           ****/
  /****                                                                 ****/
  /****                                                                 ****/
  /*************************************************************************/
  /*************************************************************************/
  /*************************************************************************/

  /* handle to internal charmap object */
  typedef struct FT_CMapRec_*              FT_CMap;

  /* handle to charmap class structure */
  typedef const struct FT_CMap_ClassRec_*  FT_CMap_Class;

  /* internal charmap object structure */
  typedef struct  FT_CMapRec_
  {
    FT_CharMapRec  charmap;
    FT_CMap_Class  clazz;

  } FT_CMapRec;

  /* typecase any pointer to a charmap handle */
#define FT_CMAP( x )              ((FT_CMap)( x ))

  /* obvious macros */
#define FT_CMAP_PLATFORM_ID( x )  FT_CMAP( x )->charmap.platform_id
#define FT_CMAP_ENCODING_ID( x )  FT_CMAP( x )->charmap.encoding_id
#define FT_CMAP_ENCODING( x )     FT_CMAP( x )->charmap.encoding
#define FT_CMAP_FACE( x )         FT_CMAP( x )->charmap.face


  /* class method definitions */
  typedef FT_Error
  (*FT_CMap_InitFunc)( FT_CMap     cmap,
                       FT_Pointer  init_data );

  typedef void
  (*FT_CMap_DoneFunc)( FT_CMap  cmap );

  typedef FT_UInt
  (*FT_CMap_CharIndexFunc)( FT_CMap    cmap,
                            FT_UInt32  char_code );

  typedef FT_UInt
  (*FT_CMap_CharNextFunc)( FT_CMap     cmap,
                           FT_UInt32  *achar_code );


  typedef struct  FT_CMap_ClassRec_
  {
    FT_ULong               size;
    FT_CMap_InitFunc       init;
    FT_CMap_DoneFunc       done;
    FT_CMap_CharIndexFunc  char_index;
    FT_CMap_CharNextFunc   char_next;

  } FT_CMap_ClassRec;


  /* create a new charmap and add it to charmap->face */
  FT_BASE( FT_Error )
  FT_CMap_New( FT_CMap_Class  clazz,
               FT_Pointer     init_data,
               FT_CharMap     charmap,
               FT_CMap       *acmap );

  /* destroy a charmap and remove it from face's list */
  FT_BASE( void )
  FT_CMap_Done( FT_CMap  cmap );


  /*************************************************************************/
  /*                                                                       */
  /* <Struct>                                                              */
  /*    FT_Face_InternalRec                                                */
  /*                                                                       */
  /* <Description>                                                         */
  /*    This structure contains the internal fields of each FT_Face        */
  /*    object.  These fields may change between different releases of     */
  /*    FreeType.                                                          */
  /*                                                                       */
  /* <Fields>                                                              */
  /*    max_points ::                                                      */
  /*      The maximal number of points used to store the vectorial outline */
  /*      of any glyph in this face.  If this value cannot be known in     */
  /*      advance, or if the face isn't scalable, this should be set to 0. */
  /*      Only relevant for scalable formats.                              */
  /*                                                                       */
  /*    max_contours ::                                                    */
  /*      The maximal number of contours used to store the vectorial       */
  /*      outline of any glyph in this face.  If this value cannot be      */
  /*      known in advance, or if the face isn't scalable, this should be  */
  /*      set to 0.  Only relevant for scalable formats.                   */
  /*                                                                       */
  /*    transform_matrix ::                                                */
  /*      A 2x2 matrix of 16.16 coefficients used to transform glyph       */
  /*      outlines after they are loaded from the font.  Only used by the  */
  /*      convenience functions.                                           */
  /*                                                                       */
  /*    transform_delta ::                                                 */
  /*      A translation vector used to transform glyph outlines after they */
  /*      are loaded from the font.  Only used by the convenience          */
  /*      functions.                                                       */
  /*                                                                       */
  /*    transform_flags ::                                                 */
  /*      Some flags used to classify the transform.  Only used by the     */
  /*      convenience functions.                                           */
  /*                                                                       */
  /*    services ::                                                        */
  /*      A cache for frequently used services.  It should be only         */
  /*      accessed with the macro `FT_FACE_LOOKUP_SERVICE'.                */
  /*                                                                       */
  /*    incremental_interface ::                                           */
  /*      If non-null, the interface through which glyph data and metrics  */
  /*      are loaded incrementally for faces that do not provide all of    */
  /*      this data when first opened.  This field exists only if          */
  /*      @FT_CONFIG_OPTION_INCREMENTAL is defined.                        */
  /*                                                                       */
  typedef struct  FT_Face_InternalRec_
  {
    FT_UShort           max_points;
    FT_Short            max_contours;

    FT_Matrix           transform_matrix;
    FT_Vector           transform_delta;
    FT_Int              transform_flags;

    FT_ServiceCacheRec  services;

#ifdef FT_CONFIG_OPTION_INCREMENTAL
    FT_Incremental_InterfaceRec*  incremental_interface;
#endif

  } FT_Face_InternalRec;


  /*************************************************************************/
  /*                                                                       */
  /* <Struct>                                                              */
  /*    FT_Slot_InternalRec                                                */
  /*                                                                       */
  /* <Description>                                                         */
  /*    This structure contains the internal fields of each FT_GlyphSlot   */
  /*    object.  These fields may change between different releases of     */
  /*    FreeType.                                                          */
  /*                                                                       */
  /* <Fields>                                                              */
  /*    loader            :: The glyph loader object used to load outlines */
  /*                         into the glyph slot.                          */
  /*                                                                       */
  /*    flags             :: Possible values are zero or                   */
  /*                         FT_GLYPH_OWN_BITMAP.  The latter indicates    */
  /*                         that the FT_GlyphSlot structure owns the      */
  /*                         bitmap buffer.                                */
  /*                                                                       */