1 files changed, 39 insertions, 12 deletions

diff --git a/src/3rdparty/harfbuzz-ng/src/hb-aat-map.hh b/src/3rdparty/harfbuzz-ng/src/hb-aat-map.hh
index 5a0fa70544..cb22ffee42 100644
--- a/src/3rdparty/harfbuzz-ng/src/hb-aat-map.hh
+++ b/src/3rdparty/harfbuzz-ng/src/hb-aat-map.hh
@@ -35,16 +35,15 @@ struct hb_aat_map_t
   friend struct hb_aat_map_builder_t;
 
   public:
-
-  void init ()
+  struct range_flags_t
   {
-    memset (this, 0, sizeof (*this));
-    chain_flags.init ();
-  }
-  void fini () { chain_flags.fini (); }
+    hb_mask_t flags;
+    unsigned cluster_first;
+    unsigned cluster_last; // end - 1
+  };
 
   public:
-  hb_vector_t<hb_mask_t> chain_flags;
+  hb_vector_t<hb_sorted_vector_t<range_flags_t>> chain_flags;
 };
 
 struct hb_aat_map_builder_t
@@ -52,10 +51,11 @@ struct hb_aat_map_builder_t
   public:
 
   HB_INTERNAL hb_aat_map_builder_t (hb_face_t *face_,
-				    const hb_segment_properties_t *props_ HB_UNUSED) :
-				      face (face_) {}
+				    const hb_segment_properties_t props_) :
+				      face (face_),
+				      props (props_) {}
 
-  HB_INTERNAL void add_feature (hb_tag_t tag, unsigned int value=1);
+  HB_INTERNAL void add_feature (const hb_feature_t &feature);
 
   HB_INTERNAL void compile (hb_aat_map_t  &m);
 
@@ -77,7 +77,7 @@ struct hb_aat_map_builder_t
 	    return (a->seq < b->seq ? -1 : a->seq > b->seq ? 1 : 0);
     }
 
-    /* compares type & setting only, not is_exclusive flag or seq number */
+    /* compares type & setting only */
     int cmp (const feature_info_t& f) const
     {
       return (f.type != type) ? (f.type < type ? -1 : 1) :
@@ -85,11 +85,38 @@ struct hb_aat_map_builder_t
     }
   };
 
+  struct feature_range_t
+  {
+    feature_info_t info;
+    unsigned start;
+    unsigned end;
+  };
+
+  private:
+  struct feature_event_t
+  {
+    unsigned int index;
+    bool start;
+    feature_info_t feature;
+
+    HB_INTERNAL static int cmp (const void *pa, const void *pb) {
+      const feature_event_t *a = (const feature_event_t *) pa;
+      const feature_event_t *b = (const feature_event_t *) pb;
+      return a->index < b->index ? -1 : a->index > b->index ? 1 :
+	     a->start < b->start ? -1 : a->start > b->start ? 1 :
+	     feature_info_t::cmp (&a->feature, &b->feature);
+    }
+  };
+
   public:
   hb_face_t *face;
+  hb_segment_properties_t props;
 
   public:
-  hb_sorted_vector_t<feature_info_t> features;
+  hb_sorted_vector_t<feature_range_t> features;
+  hb_sorted_vector_t<feature_info_t> current_features;
+  unsigned range_first = HB_FEATURE_GLOBAL_START;
+  unsigned range_last = HB_FEATURE_GLOBAL_END;
 };