diff options
Diffstat (limited to 'src/3rdparty/harfbuzz-ng/src/OT/glyf/SimpleGlyph.hh')
| -rw-r--r-- | src/3rdparty/harfbuzz-ng/src/OT/glyf/SimpleGlyph.hh | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/3rdparty/harfbuzz-ng/src/OT/glyf/SimpleGlyph.hh b/src/3rdparty/harfbuzz-ng/src/OT/glyf/SimpleGlyph.hh index b6fefce1ac..b6679b2dae 100644 --- a/src/3rdparty/harfbuzz-ng/src/OT/glyf/SimpleGlyph.hh +++ b/src/3rdparty/harfbuzz-ng/src/OT/glyf/SimpleGlyph.hh @@ -34,6 +34,11 @@ struct SimpleGlyph unsigned int length (unsigned int instruction_len) const { return instruction_len_offset () + 2 + instruction_len; } + bool has_instructions_length () const + { + return instruction_len_offset () + 2 <= bytes.length; + } + unsigned int instructions_length () const { unsigned int instruction_length_offset = instruction_len_offset (); @@ -94,6 +99,7 @@ struct SimpleGlyph /* zero instruction length */ void drop_hints () { + if (!has_instructions_length ()) return; GlyphHeader &glyph_header = const_cast<GlyphHeader &> (header); (HBUINT16 &) StructAtOffset<HBUINT16> (&glyph_header, instruction_len_offset ()) = 0; } |