ftcsbits.h

Go to the documentation of this file.

/****************************************************************************
 *
 * ftcsbits.h
 *
 *   A small-bitmap cache (specification).
 *
 * Copyright (C) 2000-2020 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.
 *
 */
 
 
#ifndef FTCSBITS_H_
#define FTCSBITS_H_
 
 
#include <freetype/ftcache.h>
#include "ftcglyph.h"
 
 
FT_BEGIN_HEADER
 
#define FTC_SBIT_ITEMS_PER_NODE  16
 
  typedef struct  FTC_SNodeRec_
  {
    FTC_GNodeRec  gnode;
    FT_UInt       count;
    FTC_SBitRec   sbits[FTC_SBIT_ITEMS_PER_NODE];
 
  } FTC_SNodeRec, *FTC_SNode;
 
 
#define FTC_SNODE( x )         ( (FTC_SNode)( x ) )
#define FTC_SNODE_GINDEX( x )  FTC_GNODE( x )->gindex
#define FTC_SNODE_FAMILY( x )  FTC_GNODE( x )->family
 
  typedef FT_UInt
  (*FTC_SFamily_GetCountFunc)( FTC_Family   family,
                               FTC_Manager  manager );
 
  typedef FT_Error
  (*FTC_SFamily_LoadGlyphFunc)( FTC_Family   family,
                                FT_UInt      gindex,
                                FTC_Manager  manager,
                                FT_Face     *aface );
 
  typedef struct  FTC_SFamilyClassRec_
  {
    FTC_MruListClassRec        clazz;
    FTC_SFamily_GetCountFunc   family_get_count;
    FTC_SFamily_LoadGlyphFunc  family_load_glyph;
 
  } FTC_SFamilyClassRec;
 
  typedef const FTC_SFamilyClassRec*  FTC_SFamilyClass;
 
#define FTC_SFAMILY_CLASS( x )  ((FTC_SFamilyClass)(x))
 
#define FTC_CACHE_SFAMILY_CLASS( x )  \
          FTC_SFAMILY_CLASS( FTC_CACHE_GCACHE_CLASS( x )->family_class )
 
 
  FT_LOCAL( void )
  FTC_SNode_Free( FTC_SNode  snode,
                  FTC_Cache  cache );
 
  FT_LOCAL( FT_Error )
  FTC_SNode_New( FTC_SNode   *psnode,
                 FTC_GQuery   gquery,
                 FTC_Cache    cache );
 
#if 0
  FT_LOCAL( FT_ULong )
  FTC_SNode_Weight( FTC_SNode  inode );
#endif
 
 
#ifdef FTC_INLINE
 
  FT_LOCAL( FT_Bool )
  FTC_SNode_Compare( FTC_SNode   snode,
                     FTC_GQuery  gquery,
                     FTC_Cache   cache,
                     FT_Bool*    list_changed);
 
#endif
 
  /* */
 
FT_END_HEADER
 
#endif /* FTCSBITS_H_ */
 
 
/* END */