diff options
Diffstat (limited to 'thirdparty/harfbuzz/src/hb-subset-plan.cc')
| -rw-r--r-- | thirdparty/harfbuzz/src/hb-subset-plan.cc | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/thirdparty/harfbuzz/src/hb-subset-plan.cc b/thirdparty/harfbuzz/src/hb-subset-plan.cc index 1e195ff660..53f8664d92 100644 --- a/thirdparty/harfbuzz/src/hb-subset-plan.cc +++ b/thirdparty/harfbuzz/src/hb-subset-plan.cc @@ -41,7 +41,7 @@ #include "hb-ot-math-table.hh" -typedef hb_hashmap_t<unsigned, hb_set_t *, (unsigned)-1, nullptr> script_langsys_map; +typedef hb_hashmap_t<unsigned, hb_set_t *> script_langsys_map; #ifndef HB_NO_SUBSET_CFF static inline void _add_cff_seac_components (const OT::cff1::accelerator_t &cff, @@ -100,11 +100,23 @@ static void _collect_layout_indices (hb_face_t *face, if (!features.alloc (table.get_feature_count () + 1)) return; + hb_set_t visited_features; + bool retain_all_features = true; for (unsigned i = 0; i < table.get_feature_count (); i++) { hb_tag_t tag = table.get_feature_tag (i); - if (tag && layout_features_to_retain->has (tag)) - features.push (tag); + if (!tag) continue; + if (!layout_features_to_retain->has (tag)) + { + retain_all_features = false; + continue; + } + + if (visited_features.has (tag)) + continue; + + features.push (tag); + visited_features.add (tag); } if (!features) @@ -113,7 +125,7 @@ static void _collect_layout_indices (hb_face_t *face, // The collect function needs a null element to signal end of the array. features.push (0); - if (features.get_size () == table.get_feature_count () + 1) + if (retain_all_features) { // Looking for all features, trigger the faster collection method. layout_collect_func (face, |