/***************************************************************************/ | |
/* */ | |
/* t1cmap.c */ | |
/* */ | |
/* Type 1 character map support (body). */ | |
/* */ | |
/* Copyright 2002-2015 by */ | |
/* David Turner, Robert Wilhelm, and Werner Lemberg. */ | |
/* */ | |
/* This file is part of the FreeType project, and may only be used, */ | |
/* modified, and distributed under the terms of the FreeType project */ | |
/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ | |
/* this file you indicate that you have read the license and */ | |
/* understand and accept it fully. */ | |
/* */ | |
/***************************************************************************/ | |
#include "t1cmap.h" | |
#include FT_INTERNAL_DEBUG_H | |
#include "psauxerr.h" | |
/*************************************************************************/ | |
/*************************************************************************/ | |
/***** *****/ | |
/***** TYPE1 STANDARD (AND EXPERT) ENCODING CMAPS *****/ | |
/***** *****/ | |
/*************************************************************************/ | |
/*************************************************************************/ | |
static void | |
t1_cmap_std_init( T1_CMapStd cmap, | |
FT_Int is_expert ) | |
{ | |
T1_Face face = (T1_Face)FT_CMAP_FACE( cmap ); | |
FT_Service_PsCMaps psnames = (FT_Service_PsCMaps)face->psnames; | |
cmap->num_glyphs = (FT_UInt)face->type1.num_glyphs; | |
cmap->glyph_names = (const char* const*)face->type1.glyph_names; | |
cmap->sid_to_string = psnames->adobe_std_strings; | |
cmap->code_to_sid = is_expert ? psnames->adobe_expert_encoding | |
: psnames->adobe_std_encoding; | |
FT_ASSERT( cmap->code_to_sid != NULL ); | |
} | |
FT_CALLBACK_DEF( void ) | |
t1_cmap_std_done( T1_CMapStd cmap ) | |
{ | |
cmap->num_glyphs = 0; | |
cmap->glyph_names = NULL; | |
cmap->sid_to_string = NULL; | |
cmap->code_to_sid = NULL; | |
} | |
FT_CALLBACK_DEF( FT_UInt ) | |
t1_cmap_std_char_index( T1_CMapStd cmap, | |
FT_UInt32 char_code ) | |
{ | |
FT_UInt result = 0; | |
if ( char_code < 256 ) | |
{ | |
FT_UInt code, n; | |
const char* glyph_name; | |
/* convert character code to Adobe SID string */ | |
code = cmap->code_to_sid[char_code]; | |
glyph_name = cmap->sid_to_string( code ); | |
/* look for the corresponding glyph name */ | |
for ( n = 0; n < cmap->num_glyphs; n++ ) | |
{ | |
const char* gname = cmap->glyph_names[n]; | |
if ( gname && gname[0] == glyph_name[0] && | |
ft_strcmp( gname, glyph_name ) == 0 ) | |
{ | |
result = n; | |
break; | |
} | |
} | |
} | |
return result; | |
} | |
FT_CALLBACK_DEF( FT_UInt32 ) | |
t1_cmap_std_char_next( T1_CMapStd cmap, | |
FT_UInt32 *pchar_code ) | |
{ | |
FT_UInt result = 0; | |
FT_UInt32 char_code = *pchar_code + 1; | |
while ( char_code < 256 ) | |
{ | |
result = t1_cmap_std_char_index( cmap, char_code ); | |
if ( result != 0 ) | |
goto Exit; | |
char_code++; | |
} | |
char_code = 0; | |
Exit: | |
*pchar_code = char_code; | |
return result; | |
} | |
FT_CALLBACK_DEF( FT_Error ) | |
t1_cmap_standard_init( T1_CMapStd cmap, | |
FT_Pointer pointer ) | |
{ | |
FT_UNUSED( pointer ); | |
t1_cmap_std_init( cmap, 0 ); | |
return 0; | |
} | |
FT_CALLBACK_TABLE_DEF const FT_CMap_ClassRec | |
t1_cmap_standard_class_rec = | |
{ | |
sizeof ( T1_CMapStdRec ), | |
(FT_CMap_InitFunc) t1_cmap_standard_init, | |
(FT_CMap_DoneFunc) t1_cmap_std_done, | |
(FT_CMap_CharIndexFunc)t1_cmap_std_char_index, | |
(FT_CMap_CharNextFunc) t1_cmap_std_char_next, | |
NULL, NULL, NULL, NULL, NULL | |
}; | |
FT_CALLBACK_DEF( FT_Error ) | |
t1_cmap_expert_init( T1_CMapStd cmap, | |
FT_Pointer pointer ) | |
{ | |
FT_UNUSED( pointer ); | |
t1_cmap_std_init( cmap, 1 ); | |
return 0; | |
} | |
FT_CALLBACK_TABLE_DEF const FT_CMap_ClassRec | |
t1_cmap_expert_class_rec = | |
{ | |
sizeof ( T1_CMapStdRec ), | |
(FT_CMap_InitFunc) t1_cmap_expert_init, | |
(FT_CMap_DoneFunc) t1_cmap_std_done, | |
(FT_CMap_CharIndexFunc)t1_cmap_std_char_index, | |
(FT_CMap_CharNextFunc) t1_cmap_std_char_next, | |
NULL, NULL, NULL, NULL, NULL | |
}; | |
/*************************************************************************/ | |
/*************************************************************************/ | |
/***** *****/ | |
/***** TYPE1 CUSTOM ENCODING CMAP *****/ | |
/***** *****/ | |
/*************************************************************************/ | |
/*************************************************************************/ | |
FT_CALLBACK_DEF( FT_Error ) | |
t1_cmap_custom_init( T1_CMapCustom cmap, | |
FT_Pointer pointer ) | |
{ | |
T1_Face face = (T1_Face)FT_CMAP_FACE( cmap ); | |
T1_Encoding encoding = &face->type1.encoding; | |
FT_UNUSED( pointer ); | |
cmap->first = (FT_UInt)encoding->code_first; | |
cmap->count = (FT_UInt)encoding->code_last - cmap->first; | |
cmap->indices = encoding->char_index; | |
FT_ASSERT( cmap->indices != NULL ); | |
FT_ASSERT( encoding->code_first <= encoding->code_last ); | |
return 0; | |
} | |
FT_CALLBACK_DEF( void ) | |
t1_cmap_custom_done( T1_CMapCustom cmap ) | |
{ | |
cmap->indices = NULL; | |
cmap->first = 0; | |
cmap->count = 0; | |
} | |
FT_CALLBACK_DEF( FT_UInt ) | |
t1_cmap_custom_char_index( T1_CMapCustom cmap, | |
FT_UInt32 char_code ) | |
{ | |
FT_UInt result = 0; | |
if ( ( char_code >= cmap->first ) && | |
( char_code < ( cmap->first + cmap->count ) ) ) | |
result = cmap->indices[char_code]; | |
return result; | |
} | |
FT_CALLBACK_DEF( FT_UInt32 ) | |
t1_cmap_custom_char_next( T1_CMapCustom cmap, | |
FT_UInt32 *pchar_code ) | |
{ | |
FT_UInt result = 0; | |
FT_UInt32 char_code = *pchar_code; | |
++char_code; | |
if ( char_code < cmap->first ) | |
char_code = cmap->first; | |
for ( ; char_code < ( cmap->first + cmap->count ); char_code++ ) | |
{ | |
result = cmap->indices[char_code]; | |
if ( result != 0 ) | |
goto Exit; | |
} | |
char_code = 0; | |
Exit: | |
*pchar_code = char_code; | |
return result; | |
} | |
FT_CALLBACK_TABLE_DEF const FT_CMap_ClassRec | |
t1_cmap_custom_class_rec = | |
{ | |
sizeof ( T1_CMapCustomRec ), | |
(FT_CMap_InitFunc) t1_cmap_custom_init, | |
(FT_CMap_DoneFunc) t1_cmap_custom_done, | |
(FT_CMap_CharIndexFunc)t1_cmap_custom_char_index, | |
(FT_CMap_CharNextFunc) t1_cmap_custom_char_next, | |
NULL, NULL, NULL, NULL, NULL | |
}; | |
/*************************************************************************/ | |
/*************************************************************************/ | |
/***** *****/ | |
/***** TYPE1 SYNTHETIC UNICODE ENCODING CMAP *****/ | |
/***** *****/ | |
/*************************************************************************/ | |
/*************************************************************************/ | |
FT_CALLBACK_DEF( const char * ) | |
psaux_get_glyph_name( T1_Face face, | |
FT_UInt idx ) | |
{ | |
return face->type1.glyph_names[idx]; | |
} | |
FT_CALLBACK_DEF( FT_Error ) | |
t1_cmap_unicode_init( PS_Unicodes unicodes, | |
FT_Pointer pointer ) | |
{ | |
T1_Face face = (T1_Face)FT_CMAP_FACE( unicodes ); | |
FT_Memory memory = FT_FACE_MEMORY( face ); | |
FT_Service_PsCMaps psnames = (FT_Service_PsCMaps)face->psnames; | |
FT_UNUSED( pointer ); | |
return psnames->unicodes_init( memory, | |
unicodes, | |
(FT_UInt)face->type1.num_glyphs, | |
(PS_GetGlyphNameFunc)&psaux_get_glyph_name, | |
(PS_FreeGlyphNameFunc)NULL, | |
(FT_Pointer)face ); | |
} | |
FT_CALLBACK_DEF( void ) | |
t1_cmap_unicode_done( PS_Unicodes unicodes ) | |
{ | |
FT_Face face = FT_CMAP_FACE( unicodes ); | |
FT_Memory memory = FT_FACE_MEMORY( face ); | |
FT_FREE( unicodes->maps ); | |
unicodes->num_maps = 0; | |
} | |
FT_CALLBACK_DEF( FT_UInt ) | |
t1_cmap_unicode_char_index( PS_Unicodes unicodes, | |
FT_UInt32 char_code ) | |
{ | |
T1_Face face = (T1_Face)FT_CMAP_FACE( unicodes ); | |
FT_Service_PsCMaps psnames = (FT_Service_PsCMaps)face->psnames; | |
return psnames->unicodes_char_index( unicodes, char_code ); | |
} | |
FT_CALLBACK_DEF( FT_UInt32 ) | |
t1_cmap_unicode_char_next( PS_Unicodes unicodes, | |
FT_UInt32 *pchar_code ) | |
{ | |
T1_Face face = (T1_Face)FT_CMAP_FACE( unicodes ); | |
FT_Service_PsCMaps psnames = (FT_Service_PsCMaps)face->psnames; | |
return psnames->unicodes_char_next( unicodes, pchar_code ); | |
} | |
FT_CALLBACK_TABLE_DEF const FT_CMap_ClassRec | |
t1_cmap_unicode_class_rec = | |
{ | |
sizeof ( PS_UnicodesRec ), | |
(FT_CMap_InitFunc) t1_cmap_unicode_init, | |
(FT_CMap_DoneFunc) t1_cmap_unicode_done, | |
(FT_CMap_CharIndexFunc)t1_cmap_unicode_char_index, | |
(FT_CMap_CharNextFunc) t1_cmap_unicode_char_next, | |
NULL, NULL, NULL, NULL, NULL | |
}; | |
/* END */ |