Roll harfbuzz-ng 3b8fd9c48f4bde368bf2d465c148b9743a9216ee

third_party/harfbuzz-ng/src/hb-ot-map.cc

 /*
  * Copyright © 2009,2010  Red Hat, Inc.
  * Copyright © 2010,2011  Google, Inc.
  *
  *  This is part of HarfBuzz, a text shaping library.
  *
  * Permission is hereby granted, without written agreement and without
  * license or royalty fees, to use, copy, modify, and distribute this
  * software and its documentation for any purpose, provided that the
  * above copyright notice and the following two paragraphs appear in
@@ skipping 77 matching lines @@
     for (; i < pause->num_lookups; i++)
       apply_lookup_func (face_or_font, buffer, lookups[table_index][i].index, lookups[table_index][i].mask);
 
     pause->callback.func (this, face_or_font, buffer, pause->callback.user_data);
   }
 
   for (; i < lookups[table_index].len; i++)
     apply_lookup_func (face_or_font, buffer, lookups[table_index][i].index, lookups[table_index][i].mask);
 }
 
+void hb_ot_map_t::substitute_closure (hb_face_t *face,
+                                      hb_set_t *glyphs) const
+{
+  unsigned int table_index = 0;
+  unsigned int i = 0;
+
+  for (unsigned int pause_index = 0; pause_index < pauses[table_index].len; pause_index++) {
+    const pause_map_t *pause = &pauses[table_index][pause_index];
+    for (; i < pause->num_lookups; i++)
+      hb_ot_layout_substitute_closure_lookup (face, glyphs, lookups[table_index][i].index);
+  }
+
+  for (; i < lookups[table_index].len; i++)
+    hb_ot_layout_substitute_closure_lookup (face, glyphs, lookups[table_index][i].index);
+}
 
 void hb_ot_map_builder_t::add_pause (unsigned int table_index, hb_ot_map_t::pause_func_t pause_func, void *user_data)
 {
   if (pause_func) {
     pause_info_t *p = pauses[table_index].push ();
     if (likely (p)) {
       p->stage = current_stage[table_index];
       p->callback.func = pause_func;
       p->callback.user_data = user_data;
     }
@@ skipping 157 matching lines @@
           pause_map->callback = pauses[table_index][pause_index].callback;
         }
 
         pause_index++;
       }
     }
   }
 }