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 #ifndef FT_CONFIG_OPTION_PIC 59 60 #define FT_DEFINE_TT_CMAP(class_, size_, init_, done_, char_index_, \ 61 char_next_, char_var_index_, char_var_default_, variant_list_, \ 62 charvariant_list_,variantchar_list_, \ 63 format_, validate_, get_cmap_info_) \ 64 FT_CALLBACK_TABLE_DEF \ 65 const TT_CMap_ClassRec class_ = \ 66 { \ 67 {size_, init_, done_, char_index_, \ 68 char_next_, char_var_index_, char_var_default_, variant_list_, \ 69 charvariant_list_, variantchar_list_}, \ 70 format_, validate_, get_cmap_info_ \ 71 }; 72 73 #else /* FT_CONFIG_OPTION_PIC */ 74 75 #define FT_DEFINE_TT_CMAP(class_, size_, init_, done_, char_index_, \ 76 char_next_, char_var_index_, char_var_default_, variant_list_, \ 77 charvariant_list_,variantchar_list_, \ 78 format_, validate_, get_cmap_info_) \ 79 void \ 80 FT_Init_Class_##class_( TT_CMap_ClassRec* clazz ) \ 81 { \ 82 clazz->clazz.size = size_; \ 83 clazz->clazz.init = init_; \ 84 clazz->clazz.done = done_; \ 85 clazz->clazz.char_index = char_index_; \ 86 clazz->clazz.char_next = char_next_; \ 87 clazz->clazz.char_var_index = char_var_index_; \ 88 clazz->clazz.char_var_default = char_var_default_; \ 89 clazz->clazz.variant_list = variant_list_; \ 90 clazz->clazz.charvariant_list = charvariant_list_; \ 91 clazz->clazz.variantchar_list = variantchar_list_; \ 92 clazz->format = format_; \ 93 clazz->validate = validate_; \ 94 clazz->get_cmap_info = get_cmap_info_; \ 95 } 96 97 #endif /* FT_CONFIG_OPTION_PIC */ 98 99 typedef struct TT_ValidatorRec_ 100 { 101 FT_ValidatorRec validator; 102 FT_UInt num_glyphs; 103 104 } TT_ValidatorRec, *TT_Validator; 105 106 107 #define TT_VALIDATOR( x ) ((TT_Validator)( x )) 108 #define TT_VALID_GLYPH_COUNT( x ) TT_VALIDATOR( x )->num_glyphs 109 110 111 FT_LOCAL( FT_Error ) 112 tt_face_build_cmaps( TT_Face face ); 113 114 /* used in tt-cmaps service */ 115 FT_LOCAL( FT_Error ) 116 tt_get_cmap_info( FT_CharMap charmap, 117 TT_CMapInfo *cmap_info ); 118 119 120 FT_END_HEADER 121 122 #endif /* __TTCMAP_H__ */ 123 124 125 /* END */ 126