1 /***************************************************************************/ 2 /* */ 3 /* ttcmap.h */ 4 /* */ 5 /* TrueType character mapping table (cmap) support (specification). */ 6 /* */ 7 /* Copyright 2002, 2003, 2004, 2005 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 __TTCMAP_H__ 20 #define __TTCMAP_H__ 21 22 23 #include <ft2build.h> 24 #include FT_INTERNAL_TRUETYPE_TYPES_H 25 #include FT_INTERNAL_VALIDATE_H 26 #include FT_SERVICE_TT_CMAP_H 27 28 FT_BEGIN_HEADER 29 30 31 #define TT_CMAP_FLAG_UNSORTED 1 32 #define TT_CMAP_FLAG_OVERLAPPING 2 33 34 typedef struct TT_CMapRec_ 35 { 36 FT_CMapRec cmap; 37 FT_Byte* data; /* pointer to in-memory cmap table */ 38 FT_Int flags; /* for format 4 only */ 39 40 } TT_CMapRec, *TT_CMap; 41 42 typedef const struct TT_CMap_ClassRec_* TT_CMap_Class; 43 44 45 typedef FT_Error 46 (*TT_CMap_ValidateFunc)( FT_Byte* data, 47 FT_Validator valid ); 48 49 typedef struct TT_CMap_ClassRec_ 50 { 51 FT_CMap_ClassRec clazz; 52 FT_UInt format; 53 TT_CMap_ValidateFunc validate; 54 TT_CMap_Info_GetFunc get_cmap_info; 55 56 } TT_CMap_ClassRec; 57 58 59 typedef struct TT_ValidatorRec_ 60 { 61 FT_ValidatorRec validator; 62 FT_UInt num_glyphs; 63 64 } TT_ValidatorRec, *TT_Validator; 65 66 67 #define TT_VALIDATOR( x ) ((TT_Validator)( x )) 68 #define TT_VALID_GLYPH_COUNT( x ) TT_VALIDATOR( x )->num_glyphs 69 70 71 FT_LOCAL( FT_Error ) 72 tt_face_build_cmaps( TT_Face face ); 73 74 /* used in tt-cmaps service */ 75 FT_LOCAL( FT_Error ) 76 tt_get_cmap_info( FT_CharMap charmap, 77 TT_CMapInfo *cmap_info ); 78 79 80 FT_END_HEADER 81 82 #endif /* __TTCMAP_H__ */ 83 84 85 /* END */ 86