/src/compiler/android-ndk/jni/freetype/src/cff/cffcmap.c
http://ftk.googlecode.com/ · C · 219 lines · 127 code · 60 blank · 32 comment · 7 complexity · fc1c9f3af1e21f94bf9252732c4c7977 MD5 · raw file
- /***************************************************************************/
- /* */
- /* cffcmap.c */
- /* */
- /* CFF character mapping table (cmap) support (body). */
- /* */
- /* Copyright 2002, 2003, 2004, 2005, 2006, 2007 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 "cffcmap.h"
- #include "cffload.h"
- #include "cfferrs.h"
- /*************************************************************************/
- /*************************************************************************/
- /***** *****/
- /***** CFF STANDARD (AND EXPERT) ENCODING CMAPS *****/
- /***** *****/
- /*************************************************************************/
- /*************************************************************************/
- FT_CALLBACK_DEF( FT_Error )
- cff_cmap_encoding_init( CFF_CMapStd cmap )
- {
- TT_Face face = (TT_Face)FT_CMAP_FACE( cmap );
- CFF_Font cff = (CFF_Font)face->extra.data;
- CFF_Encoding encoding = &cff->encoding;
- cmap->gids = encoding->codes;
- return 0;
- }
- FT_CALLBACK_DEF( void )
- cff_cmap_encoding_done( CFF_CMapStd cmap )
- {
- cmap->gids = NULL;
- }
- FT_CALLBACK_DEF( FT_UInt )
- cff_cmap_encoding_char_index( CFF_CMapStd cmap,
- FT_UInt32 char_code )
- {
- FT_UInt result = 0;
- if ( char_code < 256 )
- result = cmap->gids[char_code];
- return result;
- }
- FT_CALLBACK_DEF( FT_UInt32 )
- cff_cmap_encoding_char_next( CFF_CMapStd cmap,
- FT_UInt32 *pchar_code )
- {
- FT_UInt result = 0;
- FT_UInt32 char_code = *pchar_code;
- *pchar_code = 0;
- if ( char_code < 255 )
- {
- FT_UInt code = (FT_UInt)(char_code + 1);
- for (;;)
- {
- if ( code >= 256 )
- break;
- result = cmap->gids[code];
- if ( result != 0 )
- {
- *pchar_code = code;
- break;
- }
- code++;
- }
- }
- return result;
- }
- FT_DEFINE_CMAP_CLASS(cff_cmap_encoding_class_rec,
- sizeof ( CFF_CMapStdRec ),
- (FT_CMap_InitFunc) cff_cmap_encoding_init,
- (FT_CMap_DoneFunc) cff_cmap_encoding_done,
- (FT_CMap_CharIndexFunc)cff_cmap_encoding_char_index,
- (FT_CMap_CharNextFunc) cff_cmap_encoding_char_next,
- NULL, NULL, NULL, NULL, NULL
- )
- /*************************************************************************/
- /*************************************************************************/
- /***** *****/
- /***** CFF SYNTHETIC UNICODE ENCODING CMAP *****/
- /***** *****/
- /*************************************************************************/
- /*************************************************************************/
- FT_CALLBACK_DEF( const char* )
- cff_sid_to_glyph_name( TT_Face face,
- FT_UInt idx )
- {
- CFF_Font cff = (CFF_Font)face->extra.data;
- CFF_Charset charset = &cff->charset;
- FT_Service_PsCMaps psnames = (FT_Service_PsCMaps)cff->psnames;
- FT_UInt sid = charset->sids[idx];
- return cff_index_get_sid_string( &cff->string_index, sid, psnames );
- }
- FT_CALLBACK_DEF( void )
- cff_sid_free_glyph_name( TT_Face face,
- const char* gname )
- {
- FT_Memory memory = FT_FACE_MEMORY( face );
- FT_FREE( gname );
- }
- FT_CALLBACK_DEF( FT_Error )
- cff_cmap_unicode_init( PS_Unicodes unicodes )
- {
- TT_Face face = (TT_Face)FT_CMAP_FACE( unicodes );
- FT_Memory memory = FT_FACE_MEMORY( face );
- CFF_Font cff = (CFF_Font)face->extra.data;
- CFF_Charset charset = &cff->charset;
- FT_Service_PsCMaps psnames = (FT_Service_PsCMaps)cff->psnames;
- /* can't build Unicode map for CID-keyed font */
- if ( !charset->sids )
- return CFF_Err_Invalid_Argument;
- return psnames->unicodes_init( memory,
- unicodes,
- cff->num_glyphs,
- (PS_GetGlyphNameFunc)&cff_sid_to_glyph_name,
- (PS_FreeGlyphNameFunc)&cff_sid_free_glyph_name,
- (FT_Pointer)face );
- }
- FT_CALLBACK_DEF( void )
- cff_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 )
- cff_cmap_unicode_char_index( PS_Unicodes unicodes,
- FT_UInt32 char_code )
- {
- TT_Face face = (TT_Face)FT_CMAP_FACE( unicodes );
- CFF_Font cff = (CFF_Font)face->extra.data;
- FT_Service_PsCMaps psnames = (FT_Service_PsCMaps)cff->psnames;
- return psnames->unicodes_char_index( unicodes, char_code );
- }
- FT_CALLBACK_DEF( FT_UInt32 )
- cff_cmap_unicode_char_next( PS_Unicodes unicodes,
- FT_UInt32 *pchar_code )
- {
- TT_Face face = (TT_Face)FT_CMAP_FACE( unicodes );
- CFF_Font cff = (CFF_Font)face->extra.data;
- FT_Service_PsCMaps psnames = (FT_Service_PsCMaps)cff->psnames;
- return psnames->unicodes_char_next( unicodes, pchar_code );
- }
- FT_DEFINE_CMAP_CLASS(cff_cmap_unicode_class_rec,
- sizeof ( PS_UnicodesRec ),
- (FT_CMap_InitFunc) cff_cmap_unicode_init,
- (FT_CMap_DoneFunc) cff_cmap_unicode_done,
- (FT_CMap_CharIndexFunc)cff_cmap_unicode_char_index,
- (FT_CMap_CharNextFunc) cff_cmap_unicode_char_next,
- NULL, NULL, NULL, NULL, NULL
- )
- /* END */