122 lines
3.5 KiB
C
122 lines
3.5 KiB
C
/****************************************************************************
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*
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* ttcmap.h
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*
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* TrueType character mapping table (cmap) support (specification).
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*
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* Copyright (C) 2002-2020 by
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* David Turner, Robert Wilhelm, and Werner Lemberg.
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*
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* This file is part of the FreeType project, and may only be used,
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* modified, and distributed under the terms of the FreeType project
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* license, LICENSE.TXT. By continuing to use, modify, or distribute
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* this file you indicate that you have read the license and
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* understand and accept it fully.
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*
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*/
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#ifndef TTCMAP_H_
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#define TTCMAP_H_
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#include <freetype/internal/tttypes.h>
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#include <freetype/internal/ftvalid.h>
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#include <freetype/internal/services/svttcmap.h>
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FT_BEGIN_HEADER
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#define TT_CMAP_FLAG_UNSORTED 1
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#define TT_CMAP_FLAG_OVERLAPPING 2
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typedef struct TT_CMapRec_
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{
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FT_CMapRec cmap;
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FT_Byte* data; /* pointer to in-memory cmap table */
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FT_Int flags; /* for format 4 only */
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} TT_CMapRec, *TT_CMap;
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typedef const struct TT_CMap_ClassRec_* TT_CMap_Class;
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typedef FT_Error
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(*TT_CMap_ValidateFunc)( FT_Byte* data,
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FT_Validator valid );
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typedef struct TT_CMap_ClassRec_
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{
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FT_CMap_ClassRec clazz;
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FT_UInt format;
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TT_CMap_ValidateFunc validate;
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TT_CMap_Info_GetFunc get_cmap_info;
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} TT_CMap_ClassRec;
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#define FT_DEFINE_TT_CMAP( class_, \
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size_, \
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init_, \
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done_, \
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char_index_, \
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char_next_, \
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char_var_index_, \
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char_var_default_, \
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variant_list_, \
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charvariant_list_, \
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variantchar_list_, \
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format_, \
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validate_, \
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get_cmap_info_ ) \
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FT_CALLBACK_TABLE_DEF \
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const TT_CMap_ClassRec class_ = \
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{ \
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{ size_, \
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init_, \
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done_, \
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char_index_, \
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char_next_, \
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char_var_index_, \
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char_var_default_, \
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variant_list_, \
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charvariant_list_, \
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variantchar_list_ \
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}, \
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\
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format_, \
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validate_, \
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get_cmap_info_ \
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};
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typedef struct TT_ValidatorRec_
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{
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FT_ValidatorRec validator;
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FT_UInt num_glyphs;
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} TT_ValidatorRec, *TT_Validator;
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#define TT_VALIDATOR( x ) ( (TT_Validator)( x ) )
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#define TT_VALID_GLYPH_COUNT( x ) TT_VALIDATOR( x )->num_glyphs
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FT_CALLBACK_TABLE const TT_CMap_ClassRec tt_cmap_unicode_class_rec;
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FT_LOCAL( FT_Error )
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tt_face_build_cmaps( TT_Face face );
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/* used in tt-cmaps service */
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FT_LOCAL( FT_Error )
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tt_get_cmap_info( FT_CharMap charmap,
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TT_CMapInfo *cmap_info );
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FT_END_HEADER
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#endif /* TTCMAP_H_ */
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/* END */
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