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[gvar] Minor, check whether sub_array result also have enough room

This commit is contained in:
Ebrahim Byagowi 2020-02-27 15:58:58 +03:30
parent 8eba66c1c6
commit 14b134379d
1 changed files with 2 additions and 3 deletions
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5
src/hb-ot-var-gvar-table.hh
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@ -492,9 +492,8 @@ struct gvar
{
unsigned start_offset = get_offset (glyph);
unsigned length = get_offset (glyph+1) - start_offset;
return unlikely (GlyphVarData::min_size > length)
? hb_bytes_t ()
: blob->as_bytes ().sub_array (((unsigned) dataZ) + start_offset, length);
hb_bytes_t var_data = blob->as_bytes ().sub_array (((unsigned) dataZ) + start_offset, length);
return likely (var_data.length >= GlyphVarData::min_size) ? var_data : hb_bytes_t ();
}
bool is_long_offset () const { return (flags & 1) != 0; }