ref: a8a54c30603ddedef5a2a96615e9fd66504356bf
dir: /src/cache/ftcimage.h/
/***************************************************************************/ /* */ /* ftcimage.h */ /* */ /* FreeType Generic Image cache (specification) */ /* */ /* Copyright 2000-2015 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. */ /* */ /***************************************************************************/ /* * FTC_ICache is an _abstract_ cache used to store a single FT_Glyph * image per cache node. * * FTC_ICache extends FTC_GCache. For an implementation example, * see FTC_ImageCache in `src/cache/ftbasic.c'. */ /*************************************************************************/ /* */ /* Each image cache really manages FT_Glyph objects. */ /* */ /*************************************************************************/ #ifndef __FTCIMAGE_H__ #define __FTCIMAGE_H__ #include <ft2build.h> #include FT_CACHE_H #include "ftcglyph.h" FT_BEGIN_HEADER /* the FT_Glyph image node type - we store only 1 glyph per node */ typedef struct FTC_INodeRec_ { FTC_GNodeRec gnode; FT_Glyph glyph; } FTC_INodeRec, *FTC_INode; #define FTC_INODE( x ) ( (FTC_INode)( x ) ) #define FTC_INODE_GINDEX( x ) FTC_GNODE(x)->gindex #define FTC_INODE_FAMILY( x ) FTC_GNODE(x)->family typedef FT_Error (*FTC_IFamily_LoadGlyphFunc)( FTC_Family family, FT_UInt gindex, FTC_Cache cache, FT_Glyph *aglyph ); typedef struct FTC_IFamilyClassRec_ { FTC_MruListClassRec clazz; FTC_IFamily_LoadGlyphFunc family_load_glyph; } FTC_IFamilyClassRec; typedef const FTC_IFamilyClassRec* FTC_IFamilyClass; #define FTC_IFAMILY_CLASS( x ) ((FTC_IFamilyClass)(x)) #define FTC_CACHE__IFAMILY_CLASS( x ) \ FTC_IFAMILY_CLASS( FTC_CACHE__GCACHE_CLASS(x)->family_class ) /* can be used as a @FTC_Node_FreeFunc */ FT_LOCAL( void ) FTC_INode_Free( FTC_INode inode, FTC_Cache cache ); /* Can be used as @FTC_Node_NewFunc. `gquery.index' and `gquery.family' * must be set correctly. This function will call the `family_load_glyph' * method to load the FT_Glyph into the cache node. */ FT_LOCAL( FT_Error ) FTC_INode_New( FTC_INode *pinode, FTC_GQuery gquery, FTC_Cache cache ); #if 0 /* can be used as @FTC_Node_WeightFunc */ FT_LOCAL( FT_ULong ) FTC_INode_Weight( FTC_INode inode ); #endif /* */ FT_END_HEADER #endif /* __FTCIMAGE_H__ */ /* END */