--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/misc/libfreetype/src/cff/cffcmap.c Mon Apr 25 01:46:54 2011 +0200
@@ -0,0 +1,208 @@
+/***************************************************************************/
+/* */
+/* cffcmap.c */
+/* */
+/* CFF character mapping table (cmap) support (body). */
+/* */
+/* Copyright 2002, 2003, 2004, 2005, 2006, 2007, 2010 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_UInt sid = charset->sids[idx];
+
+
+ return cff_index_get_sid_string( cff, sid );
+ }
+
+
+ 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 */
+ /* because we don't know glyph names. */
+ if ( !charset->sids )
+ return CFF_Err_No_Unicode_Glyph_Name;
+
+ return psnames->unicodes_init( memory,
+ unicodes,
+ cff->num_glyphs,
+ (PS_GetGlyphNameFunc)&cff_sid_to_glyph_name,
+ (PS_FreeGlyphNameFunc)NULL,
+ (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 */