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Add a debug message when offset overflow resolution fails.

This commit is contained in:
Garret Rieger 2021-09-07 13:22:19 -07:00
parent cb2d71c648
commit 02c4a516db
1 changed files with 12 additions and 1 deletions
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13
src/hb-repacker.hh
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@ -430,9 +430,13 @@ struct graph_t
update_incoming_edge_count ();
for (const auto& o : overflows)
{
const auto& parent = vertices_[o.parent];
const auto& child = vertices_[o.child];
DEBUG_MSG (SUBSET_REPACK, nullptr, " overflow from %d => %d (%d incoming , %d outgoing)",
DEBUG_MSG (SUBSET_REPACK, nullptr,
" overflow from %d (%d in, %d out) => %d (%d in, %d out)",
o.parent,
parent.incoming_edges,
parent.obj.links.length,
o.child,
child.incoming_edges,
child.obj.links.length);
@ -762,6 +766,13 @@ hb_resolve_overflows (const hb_vector_t<hb_serialize_context_t::object_t *>& pac
c->err (HB_SERIALIZE_ERROR_OTHER);
return;
}
if (sorted_graph.will_overflow ())
{
c->err (HB_SERIALIZE_ERROR_OFFSET_OVERFLOW);
DEBUG_MSG (SUBSET_REPACK, nullptr, "Offset overflow resolution failed.");
return;
}
sorted_graph.serialize (c);
}