* src/cff/cffobjs.c (cff_face_init): Better handling of Type0 fonts.
This issue relates to the PDF specification and its usage of CFF-based
embedded Type0 fonts. For Type0 fonts containing CID-keyed descendant
CFF-based fonts, the glyph index is the CID present in the content stream.
As a result, there is no requirement for a 'cmap' table to be present in the
font since the glyph indices are derived directly from the CIDs. FreeType
throws an error when it doesn’t find a 'cmap' table for such an Open Type
font containing CFF outlines. This commit relaxes this requirement for a
'cmap' table for such fonts.
diff --git a/src/cff/cffobjs.c b/src/cff/cffobjs.c
index 7c67137..dd4e821 100644
--- a/src/cff/cffobjs.c
+++ b/src/cff/cffobjs.c
@@ -550,13 +550,13 @@
if ( error )
goto Exit;
}
- else
- {
- /* load the `cmap' table explicitly */
- error = sfnt->load_cmap( face, stream );
- if ( error )
- goto Exit;
- }
+
+ /* load the `cmap' table explicitly */
+ error = sfnt->load_cmap( face, stream );
+
+ /* this may fail because CID-keyed fonts don't have a cmap */
+ if ( FT_ERR_NEQ( error, Table_Missing ) && FT_ERR_NEQ( error, Ok ) )
+ goto Exit;
/* now load the CFF part of the file; */
/* give priority to CFF2 */