1  /****************************************************************************
       2   *
       3   * ftcsbits.h
       4   *
       5   *   A small-bitmap cache (specification).
       6   *
       7   * Copyright (C) 2000-2023 by
       8   * David Turner, Robert Wilhelm, and Werner Lemberg.
       9   *
      10   * This file is part of the FreeType project, and may only be used,
      11   * modified, and distributed under the terms of the FreeType project
      12   * license, LICENSE.TXT.  By continuing to use, modify, or distribute
      13   * this file you indicate that you have read the license and
      14   * understand and accept it fully.
      15   *
      16   */
      17  
      18  
      19  #ifndef FTCSBITS_H_
      20  #define FTCSBITS_H_
      21  
      22  
      23  #include <freetype/ftcache.h>
      24  #include "ftcglyph.h"
      25  
      26  
      27  FT_BEGIN_HEADER
      28  
      29  #define FTC_SBIT_ITEMS_PER_NODE  16
      30  
      31    typedef struct  FTC_SNodeRec_
      32    {
      33      FTC_GNodeRec  gnode;
      34      FT_UInt       count;
      35      FTC_SBitRec   sbits[FTC_SBIT_ITEMS_PER_NODE];
      36  
      37    } FTC_SNodeRec, *FTC_SNode;
      38  
      39  
      40  #define FTC_SNODE( x )         ( (FTC_SNode)( x ) )
      41  #define FTC_SNODE_GINDEX( x )  FTC_GNODE( x )->gindex
      42  #define FTC_SNODE_FAMILY( x )  FTC_GNODE( x )->family
      43  
      44    typedef FT_UInt
      45    (*FTC_SFamily_GetCountFunc)( FTC_Family   family,
      46                                 FTC_Manager  manager );
      47  
      48    typedef FT_Error
      49    (*FTC_SFamily_LoadGlyphFunc)( FTC_Family   family,
      50                                  FT_UInt      gindex,
      51                                  FTC_Manager  manager,
      52                                  FT_Face     *aface );
      53  
      54    typedef struct  FTC_SFamilyClassRec_
      55    {
      56      FTC_MruListClassRec        clazz;
      57      FTC_SFamily_GetCountFunc   family_get_count;
      58      FTC_SFamily_LoadGlyphFunc  family_load_glyph;
      59  
      60    } FTC_SFamilyClassRec;
      61  
      62    typedef const FTC_SFamilyClassRec*  FTC_SFamilyClass;
      63  
      64  #define FTC_SFAMILY_CLASS( x )  ( (FTC_SFamilyClass)(x) )
      65  
      66  #define FTC_CACHE_SFAMILY_CLASS( x )  \
      67            FTC_SFAMILY_CLASS( FTC_CACHE_GCACHE_CLASS( x )->family_class )
      68  
      69  
      70    FT_LOCAL( void )
      71    FTC_SNode_Free( FTC_SNode  snode,
      72                    FTC_Cache  cache );
      73  
      74    FT_LOCAL( FT_Error )
      75    FTC_SNode_New( FTC_SNode   *psnode,
      76                   FTC_GQuery   gquery,
      77                   FTC_Cache    cache );
      78  
      79  #if 0
      80    FT_LOCAL( FT_ULong )
      81    FTC_SNode_Weight( FTC_SNode  inode );
      82  #endif
      83  
      84    /* */
      85  
      86  FT_END_HEADER
      87  
      88  #endif /* FTCSBITS_H_ */
      89  
      90  
      91  /* END */