[Devel] Font with oversize HEAD table

[Scott Long]

We have a font file that fails to load with FreeType because its HEAD 
table is 56 bytes long (instead of 54, as listed in the spec). In 
ttload.c line 216:

if ( table.Length != 0x36                ||

We have solved this problem here by changing to:

if ( table.Length < 0x36                ||

It makes sense to allow longer tables than the spec requires, since we 
can just ignore whatever bytes happen to be there. In this case is was 
probably the artifact of some font tool that tried to pad memory 
regions out to a multiple of 4 bytes (56 is divisible by 4, 54 is 
not).

Could this change be implemented in the next release? Probably there 
are more fonts than just this one which exhibit this problem...

Thanks,

Scott Long
SwiftView, Inc. http://www.swiftview.com