commit c19ec97da722d4a91024328c2d31f5e2f984fe10
author Garret Rieger <grieger@google.com> Thu Sep 09 10:53:09 2021 -0700
committer Garret Rieger <grieger@google.com> Wed Sep 22 18:18:50 2021 -0600
tree c68ff6ddfe7e33e127445adce4b3f16b5f654f07
parent d5beb96e06c34b6f5799f341d4b27e952e739d85

[repacker] reduce the bits used by order by 2 to give more bits to distance.

src/hb-repacker.hh

diff --git a/src/hb-repacker.hh b/src/hb-repacker.hh
index b2f1c92..775311d 100644
--- a/src/hb-repacker.hh
+++ b/src/hb-repacker.hh
@@ -79,7 +79,7 @@
 
       int64_t modified_distance =
           hb_min (hb_max(distance + distance_modifier (), 0), 0x7FFFFFFFFF);
-      return (modified_distance << 24) | (0x00FFFFFF & order);
+      return (modified_distance << 22) | (0x003FFFFF & order);
     }
 
     int64_t distance_modifier () const
@@ -845,7 +845,6 @@
 
     // TODO(garretrieger): add additional offset resolution strategies
     // - Promotion to extension lookups.
-    // - Isolate the sub graphs of extension sub tables.
     // - Table splitting.
   }