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ftcimage.h
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1 /***************************************************************************/
2 /* */
3 /* ftcimage.h */
4 /* */
5 /* FreeType Generic Image cache (specification) */
6 /* */
7 /* Copyright 2000-2018 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  /*
20  * FTC_ICache is an _abstract_ cache used to store a single FT_Glyph
21  * image per cache node.
22  *
23  * FTC_ICache extends FTC_GCache. For an implementation example,
24  * see FTC_ImageCache in `src/cache/ftbasic.c'.
25  */
26 
27 
28  /*************************************************************************/
29  /* */
30  /* Each image cache really manages FT_Glyph objects. */
31  /* */
32  /*************************************************************************/
33 
34 
35 #ifndef FTCIMAGE_H_
36 #define FTCIMAGE_H_
37 
38 
39 #include <ft2build.h>
40 #include FT_CACHE_H
41 #include "ftcglyph.h"
42 
44 
45 
46  /* the FT_Glyph image node type - we store only 1 glyph per node */
47  typedef struct FTC_INodeRec_
48  {
51 
53 
54 #define FTC_INODE( x ) ( (FTC_INode)( x ) )
55 #define FTC_INODE_GINDEX( x ) FTC_GNODE(x)->gindex
56 #define FTC_INODE_FAMILY( x ) FTC_GNODE(x)->family
57 
58  typedef FT_Error
60  FT_UInt gindex,
62  FT_Glyph *aglyph );
63 
64  typedef struct FTC_IFamilyClassRec_
65  {
68 
70 
72 
73 #define FTC_IFAMILY_CLASS( x ) ((FTC_IFamilyClass)(x))
74 
75 #define FTC_CACHE_IFAMILY_CLASS( x ) \
76  FTC_IFAMILY_CLASS( FTC_CACHE_GCACHE_CLASS(x)->family_class )
77 
78 
79  /* can be used as a @FTC_Node_FreeFunc */
80  FT_LOCAL( void )
82  FTC_Cache cache );
83 
84  /* Can be used as @FTC_Node_NewFunc. `gquery.index' and `gquery.family'
85  * must be set correctly. This function will call the `family_load_glyph'
86  * method to load the FT_Glyph into the cache node.
87  */
89  FTC_INode_New( FTC_INode *pinode,
90  FTC_GQuery gquery,
91  FTC_Cache cache );
92 
93 #if 0
94  /* can be used as @FTC_Node_WeightFunc */
96  FTC_INode_Weight( FTC_INode inode );
97 #endif
98 
99 
100  /* */
101 
103 
104 #endif /* FTCIMAGE_H_ */
105 
106 
107 /* END */
Definition: cache.c:48
int FT_Error
Definition: fttypes.h:300
FT_Glyph glyph
Definition: ftcimage.h:50
unsigned long FT_ULong
Definition: fttypes.h:253
FTC_IFamily_LoadGlyphFunc family_load_glyph
Definition: ftcimage.h:67
#define FT_END_HEADER
Definition: ftheader.h:54
Definition: fs.h:78
FTC_GNodeRec gnode
Definition: ftcimage.h:49
#define FT_BEGIN_HEADER
Definition: ftheader.h:36
#define FT_LOCAL(x)
Definition: ftconfig.h:387
const FTC_IFamilyClassRec * FTC_IFamilyClass
Definition: ftcimage.h:71
struct FTC_IFamilyClassRec_ FTC_IFamilyClassRec
FTC_INode_New(FTC_INode *pinode, FTC_GQuery gquery, FTC_Cache cache)
Definition: ftcimage.c:59
static IOleCache * cache
Definition: ole2.c:75
FT_BEGIN_HEADER struct FTC_FamilyRec_ * FTC_Family
FTC_INode_Free(FTC_INode inode, FTC_Cache cache)
Definition: ftcimage.c:50
FTC_MruListClassRec clazz
Definition: ftcimage.h:66
unsigned int FT_UInt
Definition: fttypes.h:231
FT_BEGIN_HEADER struct FTC_INodeRec_ * FTC_INode
FT_Error(* FTC_IFamily_LoadGlyphFunc)(FTC_Family family, FT_UInt gindex, FTC_Cache cache, FT_Glyph *aglyph)
Definition: ftcimage.h:59
FT_BEGIN_HEADER struct FTC_INodeRec_ FTC_INodeRec