From 9266b6d0914a31215d8505a363ecfd8f80b744eb Mon Sep 17 00:00:00 2001
From: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@qt.io>
Date: Tue, 15 Aug 2023 10:46:23 +0200
Subject: Update to Harfbuzz 8.1.1

Pick-to: 5.15 6.2 6.5 6.6
Change-Id: I886bc7d385e62ff0c9546c18bb7bb9273ef1cbd1
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
---
 src/3rdparty/harfbuzz-ng/src/hb-ot-cmap-table.hh | 38 +++++++++++++-----------
 1 file changed, 20 insertions(+), 18 deletions(-)

(limited to 'src/3rdparty/harfbuzz-ng/src/hb-ot-cmap-table.hh')

diff --git a/src/3rdparty/harfbuzz-ng/src/hb-ot-cmap-table.hh b/src/3rdparty/harfbuzz-ng/src/hb-ot-cmap-table.hh
index cf5ccd53e9..30401b1926 100644
--- a/src/3rdparty/harfbuzz-ng/src/hb-ot-cmap-table.hh
+++ b/src/3rdparty/harfbuzz-ng/src/hb-ot-cmap-table.hh
@@ -277,10 +277,10 @@ struct CmapSubtableFormat4
       }
     } writer(c);
 
-    writer.end_code_ = c->allocate_size<HBUINT16> (HBUINT16::static_size * segcount);
-    c->allocate_size<HBUINT16> (2); // padding
-    writer.start_code_ = c->allocate_size<HBUINT16> (HBUINT16::static_size * segcount);
-    writer.id_delta_ = c->allocate_size<HBINT16> (HBINT16::static_size * segcount);
+    writer.end_code_ = c->allocate_size<HBUINT16> (HBUINT16::static_size * segcount, false);
+    (void) c->allocate_size<HBUINT16> (2); // padding
+    writer.start_code_ = c->allocate_size<HBUINT16> (HBUINT16::static_size * segcount, false);
+    writer.id_delta_ = c->allocate_size<HBINT16> (HBINT16::static_size * segcount, false);
 
     if (unlikely (!writer.end_code_ || !writer.start_code_ || !writer.id_delta_)) return false;
 
@@ -325,7 +325,7 @@ struct CmapSubtableFormat4
   {
     auto format4_iter =
     + it
-    | hb_filter ([&] (const hb_pair_t<hb_codepoint_t, hb_codepoint_t> _)
+    | hb_filter ([&] (const hb_codepoint_pair_t _)
 		 { return _.first <= 0xFFFF; })
     ;
 
@@ -335,7 +335,7 @@ struct CmapSubtableFormat4
     if (unlikely (!c->extend_min (this))) return;
     this->format = 4;
 
-    hb_vector_t<hb_pair_t<hb_codepoint_t, hb_codepoint_t>> cp_to_gid {
+    hb_vector_t<hb_codepoint_pair_t> cp_to_gid {
       format4_iter
     };
 
@@ -757,8 +757,7 @@ struct CmapSubtableLongSegmented
       hb_codepoint_t gid = this->groups[i].glyphID;
       if (!gid)
       {
-	/* Intention is: if (hb_is_same (T, CmapSubtableFormat13)) continue; */
-	if (! T::group_get_glyph (this->groups[i], end)) continue;
+        if (T::formatNumber == 13) continue;
 	start++;
 	gid++;
       }
@@ -766,11 +765,13 @@ struct CmapSubtableLongSegmented
       if (unlikely ((unsigned int) (gid + end - start) >= num_glyphs))
 	end = start + (hb_codepoint_t) num_glyphs - gid;
 
+      mapping->alloc (mapping->get_population () + end - start + 1);
+
       for (unsigned cp = start; cp <= end; cp++)
       {
 	unicodes->add (cp);
 	mapping->set (cp, gid);
-	gid++;
+        gid += T::increment;
       }
     }
   }
@@ -794,6 +795,9 @@ struct CmapSubtableLongSegmented
 
 struct CmapSubtableFormat12 : CmapSubtableLongSegmented<CmapSubtableFormat12>
 {
+  static constexpr int increment = 1;
+  static constexpr int formatNumber = 12;
+
   static hb_codepoint_t group_get_glyph (const CmapSubtableLongGroup &group,
 					 hb_codepoint_t u)
   { return likely (group.startCharCode <= group.endCharCode) ?
@@ -866,6 +870,9 @@ struct CmapSubtableFormat12 : CmapSubtableLongSegmented<CmapSubtableFormat12>
 
 struct CmapSubtableFormat13 : CmapSubtableLongSegmented<CmapSubtableFormat13>
 {
+  static constexpr int increment = 0;
+  static constexpr int formatNumber = 13;
+
   static hb_codepoint_t group_get_glyph (const CmapSubtableLongGroup &group,
 					 hb_codepoint_t u HB_UNUSED)
   { return group.glyphID; }
@@ -917,8 +924,7 @@ struct DefaultUVS : SortedArray32Of<UnicodeValueRange>
   DefaultUVS* copy (hb_serialize_context_t *c,
 		    const hb_set_t *unicodes) const
   {
-    DefaultUVS *out = c->start_embed<DefaultUVS> ();
-    if (unlikely (!out)) return nullptr;
+    auto *out = c->start_embed<DefaultUVS> ();
     auto snap = c->snapshot ();
 
     HBUINT32 len;
@@ -931,8 +937,7 @@ struct DefaultUVS : SortedArray32Of<UnicodeValueRange>
       hb_codepoint_t start = HB_SET_VALUE_INVALID;
       hb_codepoint_t end = HB_SET_VALUE_INVALID;
 
-      for (hb_codepoint_t u = HB_SET_VALUE_INVALID;
-	   unicodes->next (&u);)
+      for (auto u : *unicodes)
       {
         if (!as_array ().bsearch (u))
 	  continue;
@@ -1067,9 +1072,7 @@ struct NonDefaultUVS : SortedArray32Of<UVSMapping>
 		       const hb_set_t *glyphs_requested,
 		       const hb_map_t *glyph_map) const
   {
-    NonDefaultUVS *out = c->start_embed<NonDefaultUVS> ();
-    if (unlikely (!out)) return nullptr;
-
+    auto *out = c->start_embed<NonDefaultUVS> ();
     auto it =
     + as_array ()
     | hb_filter ([&] (const UVSMapping& _)
@@ -1767,7 +1770,6 @@ struct cmap
     TRACE_SUBSET (this);
 
     cmap *cmap_prime = c->serializer->start_embed<cmap> ();
-    if (unlikely (!c->serializer->check_success (cmap_prime))) return_trace (false);
 
     auto encodingrec_iter =
     + hb_iter (encodingRecord)
@@ -1798,7 +1800,7 @@ struct cmap
 
     auto it =
     + c->plan->unicode_to_new_gid_list.iter ()
-    | hb_filter ([&] (const hb_pair_t<hb_codepoint_t, hb_codepoint_t> _)
+    | hb_filter ([&] (const hb_codepoint_pair_t _)
 		 { return (_.second != HB_MAP_VALUE_INVALID); })
     ;
 
-- 
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