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[subset] remove WE_HAVE_INSTRUCTIONS from composites when dropping hints

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This commit is contained in:
Rod Sheeter 2018-02-27 20:51:12 -08:00
parent ffcb5cbf71
commit 6836a82142
1 changed files with 11 additions and 1 deletions
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12
src/hb-subset-glyf.cc
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@ -180,7 +180,17 @@ _write_glyf_and_loca_prime (hb_subset_plan_t *plan,
memcpy (glyf_prime_data_next + instruction_start - start_offset, glyf_data + instruction_end, end_offset - instruction_end);
/* if the instructions end at the end this was a composite glyph */
if (instruction_end == end_offset)
; // TODO(rsheeter) remove WE_HAVE_INSTRUCTIONS from last flags
{
/* remove WE_HAVE_INSTRUCTIONS from flags in dest */
OT::glyf::CompositeGlyphHeader::Iterator composite_it;
if (unlikely (!OT::glyf::CompositeGlyphHeader::get_iterator (glyf_prime_data_next, length, &composite_it))) return false;
const OT::glyf::CompositeGlyphHeader *glyph;
do {
glyph = composite_it.current;
OT::HBUINT16 *flags = const_cast<OT::HBUINT16 *> (&glyph->flags);
flags->set ( (uint16_t) *flags & ~OT::glyf::CompositeGlyphHeader::WE_HAVE_INSTRUCTIONS);
} while (composite_it.move_to_next());
}
else
/* zero instruction length, which is just before instruction_start */
memset (glyf_prime_data_next + instruction_start - start_offset - 2, 0, 2);