Update bundled HarfBuzz-NG copy to 1.4.1

Most important changes since 1.0:

- New API.
- Update to Unicode 9.0.0; add 6 more scripts.
- Improved list of language tag mappings.
- OpenType 1.8 Font Variations support.
- Blacklist GDEF table of certain fonts.
- Implement parsing of OpenType MATH table.
- Implement CBDT/CBLC color font glyph extents.
- Fix mark zeroing types of most shapers.
- Allow GPOS cursive connection on marks, and fix the interaction with
  mark attachment.
- Universal Shaping Engine fixes; update to latest draft from Microsoft.
- Implement "shaping" of various Unicode space characters, even
  if the font does not support them.
- Allow MultipleSubst to delete a glyph (matching Windows engine).
- CoreText backend fixes and optimizations.
- Optimizations and other improvements.

[ChangeLog] Bundled HarfBuzz-NG copy updated to 1.4.1

Change-Id: Ie398fad8f6d3b98e3236f62a97caedc649511470
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@qt.io>

1 files changed, 14 insertions, 23 deletions

diff --git a/src/3rdparty/harfbuzz-ng/src/hb-ot-map-private.hh b/src/3rdparty/harfbuzz-ng/src/hb-ot-map-private.hh
index f9538af183..0395c9c22f 100644
--- a/src/3rdparty/harfbuzz-ng/src/hb-ot-map-private.hh
+++ b/src/3rdparty/harfbuzz-ng/src/hb-ot-map-private.hh
@@ -139,12 +139,6 @@ struct hb_ot_map_t
 
   private:
 
-  HB_INTERNAL void add_lookups (hb_face_t    *face,
-				unsigned int  table_index,
-				unsigned int  feature_index,
-				hb_mask_t     mask,
-				bool          auto_zwj);
-
   hb_mask_t global_mask;
 
   hb_prealloced_array_t<feature_map_t, 8> features;
@@ -159,23 +153,9 @@ enum hb_ot_map_feature_flags_t {
   F_MANUAL_ZWJ		= 0x0004u, /* Don't skip over ZWJ when matching. */
   F_GLOBAL_SEARCH	= 0x0008u  /* If feature not found in LangSys, look for it in global feature list and pick one. */
 };
+HB_MARK_AS_FLAG_T (hb_ot_map_feature_flags_t);
 /* Macro version for where const is desired. */
 #define F_COMBINE(l,r) (hb_ot_map_feature_flags_t ((unsigned int) (l) | (unsigned int) (r)))
-static inline hb_ot_map_feature_flags_t
-operator | (hb_ot_map_feature_flags_t l, hb_ot_map_feature_flags_t r)
-{ return hb_ot_map_feature_flags_t ((unsigned int) l | (unsigned int) r); }
-static inline hb_ot_map_feature_flags_t
-operator & (hb_ot_map_feature_flags_t l, hb_ot_map_feature_flags_t r)
-{ return hb_ot_map_feature_flags_t ((unsigned int) l & (unsigned int) r); }
-static inline hb_ot_map_feature_flags_t
-operator ~ (hb_ot_map_feature_flags_t r)
-{ return hb_ot_map_feature_flags_t (~(unsigned int) r); }
-static inline hb_ot_map_feature_flags_t&
-operator |= (hb_ot_map_feature_flags_t &l, hb_ot_map_feature_flags_t r)
-{ l = l | r; return l; }
-static inline hb_ot_map_feature_flags_t&
-operator &= (hb_ot_map_feature_flags_t& l, hb_ot_map_feature_flags_t r)
-{ l = l & r; return l; }
 
 
 struct hb_ot_map_builder_t
@@ -196,7 +176,9 @@ struct hb_ot_map_builder_t
   inline void add_gpos_pause (hb_ot_map_t::pause_func_t pause_func)
   { add_pause (1, pause_func); }
 
-  HB_INTERNAL void compile (struct hb_ot_map_t &m);
+  HB_INTERNAL void compile (hb_ot_map_t  &m,
+			    const int    *coords,
+			    unsigned int  num_coords);
 
   inline void finish (void) {
     feature_infos.finish ();
@@ -208,6 +190,14 @@ struct hb_ot_map_builder_t
 
   private:
 
+  HB_INTERNAL void add_lookups (hb_ot_map_t  &m,
+				hb_face_t    *face,
+				unsigned int  table_index,
+				unsigned int  feature_index,
+				unsigned int  variations_index,
+				hb_mask_t     mask,
+				bool          auto_zwj);
+
   struct feature_info_t {
     hb_tag_t tag;
     unsigned int seq; /* sequence#, used for stable sorting only */
@@ -217,7 +207,8 @@ struct hb_ot_map_builder_t
     unsigned int stage[2]; /* GSUB/GPOS */
 
     static int cmp (const feature_info_t *a, const feature_info_t *b)
-    { return (a->tag != b->tag) ?  (a->tag < b->tag ? -1 : 1) : (a->seq < b->seq ? -1 : 1); }
+    { return (a->tag != b->tag) ?  (a->tag < b->tag ? -1 : 1) :
+	     (a->seq < b->seq ? -1 : a->seq > b->seq ? 1 : 0); }
   };
 
   struct stage_info_t {