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ttcmap.h
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00001 /***************************************************************************/ 00002 /* */ 00003 /* ttcmap.h */ 00004 /* */ 00005 /* TrueType character mapping table (cmap) support (specification). */ 00006 /* */ 00007 /* Copyright 2002, 2003, 2004, 2005 by */ 00008 /* David Turner, Robert Wilhelm, and Werner Lemberg. */ 00009 /* */ 00010 /* This file is part of the FreeType project, and may only be used, */ 00011 /* modified, and distributed under the terms of the FreeType project */ 00012 /* license, LICENSE.TXT. By continuing to use, modify, or distribute */ 00013 /* this file you indicate that you have read the license and */ 00014 /* understand and accept it fully. */ 00015 /* */ 00016 /***************************************************************************/ 00017 00018 00019 #ifndef __TTCMAP_H__ 00020 #define __TTCMAP_H__ 00021 00022 00023 #include <ft2build.h> 00024 #include FT_INTERNAL_TRUETYPE_TYPES_H 00025 #include FT_INTERNAL_VALIDATE_H 00026 #include FT_SERVICE_TT_CMAP_H 00027 00028 FT_BEGIN_HEADER 00029 00030 00031 #define TT_CMAP_FLAG_UNSORTED 1 00032 #define TT_CMAP_FLAG_OVERLAPPING 2 00033 00034 typedef struct TT_CMapRec_ 00035 { 00036 FT_CMapRec cmap; 00037 FT_Byte* data; /* pointer to in-memory cmap table */ 00038 FT_Int flags; /* for format 4 only */ 00039 00040 } TT_CMapRec, *TT_CMap; 00041 00042 typedef const struct TT_CMap_ClassRec_* TT_CMap_Class; 00043 00044 00045 typedef FT_Error 00046 (*TT_CMap_ValidateFunc)( FT_Byte* data, 00047 FT_Validator valid ); 00048 00049 typedef struct TT_CMap_ClassRec_ 00050 { 00051 FT_CMap_ClassRec clazz; 00052 FT_UInt format; 00053 TT_CMap_ValidateFunc validate; 00054 TT_CMap_Info_GetFunc get_cmap_info; 00055 00056 } TT_CMap_ClassRec; 00057 00058 #ifndef FT_CONFIG_OPTION_PIC 00059 00060 #define FT_DEFINE_TT_CMAP(class_, size_, init_, done_, char_index_, \ 00061 char_next_, char_var_index_, char_var_default_, variant_list_, \ 00062 charvariant_list_,variantchar_list_, \ 00063 format_, validate_, get_cmap_info_) \ 00064 FT_CALLBACK_TABLE_DEF \ 00065 const TT_CMap_ClassRec class_ = \ 00066 { \ 00067 {size_, init_, done_, char_index_, \ 00068 char_next_, char_var_index_, char_var_default_, variant_list_, \ 00069 charvariant_list_, variantchar_list_}, \ 00070 format_, validate_, get_cmap_info_ \ 00071 }; 00072 00073 #else /* FT_CONFIG_OPTION_PIC */ 00074 00075 #define FT_DEFINE_TT_CMAP(class_, size_, init_, done_, char_index_, \ 00076 char_next_, char_var_index_, char_var_default_, variant_list_, \ 00077 charvariant_list_,variantchar_list_, \ 00078 format_, validate_, get_cmap_info_) \ 00079 void \ 00080 FT_Init_Class_##class_( TT_CMap_ClassRec* clazz ) \ 00081 { \ 00082 clazz->clazz.size = size_; \ 00083 clazz->clazz.init = init_; \ 00084 clazz->clazz.done = done_; \ 00085 clazz->clazz.char_index = char_index_; \ 00086 clazz->clazz.char_next = char_next_; \ 00087 clazz->clazz.char_var_index = char_var_index_; \ 00088 clazz->clazz.char_var_default = char_var_default_; \ 00089 clazz->clazz.variant_list = variant_list_; \ 00090 clazz->clazz.charvariant_list = charvariant_list_; \ 00091 clazz->clazz.variantchar_list = variantchar_list_; \ 00092 clazz->format = format_; \ 00093 clazz->validate = validate_; \ 00094 clazz->get_cmap_info = get_cmap_info_; \ 00095 } 00096 00097 #endif /* FT_CONFIG_OPTION_PIC */ 00098 00099 typedef struct TT_ValidatorRec_ 00100 { 00101 FT_ValidatorRec validator; 00102 FT_UInt num_glyphs; 00103 00104 } TT_ValidatorRec, *TT_Validator; 00105 00106 00107 #define TT_VALIDATOR( x ) ((TT_Validator)( x )) 00108 #define TT_VALID_GLYPH_COUNT( x ) TT_VALIDATOR( x )->num_glyphs 00109 00110 00111 FT_LOCAL( FT_Error ) 00112 tt_face_build_cmaps( TT_Face face ); 00113 00114 /* used in tt-cmaps service */ 00115 FT_LOCAL( FT_Error ) 00116 tt_get_cmap_info( FT_CharMap charmap, 00117 TT_CMapInfo *cmap_info ); 00118 00119 00120 FT_END_HEADER 00121 00122 #endif /* __TTCMAP_H__ */ 00123 00124 00125 /* END */
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