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[subset] Only run the repacker for GSUB/GPOS.

This commit is contained in:
Garret Rieger 2020-11-03 14:01:42 -08:00
parent aaa7873d42
commit dd8e5d0e1b
1 changed files with 6 additions and 3 deletions
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9
src/hb-subset.cc
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@ -69,8 +69,12 @@ _plan_estimate_subset_table_size (hb_subset_plan_t *plan, unsigned table_len)
* Repack the serialization buffer if any offset overflows exist.
*/
static hb_blob_t*
_repack (const hb_serialize_context_t& c)
_repack (hb_tag_t tag, const hb_serialize_context_t& c)
{
if (tag != HB_OT_TAG_GPOS
&& tag != HB_OT_TAG_GSUB)
return c.copy_blob ();
if (!c.offset_overflow)
return c.copy_blob ();
@ -90,7 +94,6 @@ _repack (const hb_serialize_context_t& c)
return repacked.copy_blob ();
}
template<typename TableType>
static bool
_subset (hb_subset_plan_t *plan)
@ -138,7 +141,7 @@ _subset (hb_subset_plan_t *plan)
{
if (needed)
{
hb_blob_t *dest_blob = _repack (serializer);
hb_blob_t *dest_blob = _repack (tag, serializer);
if (!dest_blob) return false;
DEBUG_MSG (SUBSET, nullptr, "OT::%c%c%c%c final subset table size: %u bytes.", HB_UNTAG (tag), dest_blob->length);
result = c.plan->add_table (tag, dest_blob);