Update Harfbuzz to version 6.0.0

Note: This requires an update to the tst_qtextlayout test, because
the test assumed that the Arabic string would always yield a run
of two glyphs. This was a side effect of how Harfbuzz handled
Qt's test font, which has zero font tables and cannot be used for
shaping. With the Harfbuzz update, the Arabic text here yields a
single cluster instead, which actually makes more sense, so the
test has been made a bit more robust to support both cases.

Pick-to: 6.2 6.5
Task-number: QTBUG-110338
Change-Id: I93d4cf8e3046dc93224e144d4c81d86bef4918d1
Reviewed-by: Lars Knoll <lars@knoll.priv.no>
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>

1 files changed, 5 insertions, 5 deletions

diff --git a/src/3rdparty/harfbuzz-ng/src/hb-graphite2.cc b/src/3rdparty/harfbuzz-ng/src/hb-graphite2.cc
index 63dc18b466..9e068f8d84 100644
--- a/src/3rdparty/harfbuzz-ng/src/hb-graphite2.cc
+++ b/src/3rdparty/harfbuzz-ng/src/hb-graphite2.cc
@@ -158,7 +158,7 @@ _hb_graphite2_shaper_face_data_destroy (hb_graphite2_face_data_t *data)
 }
 
 /**
- * hb_graphite2_face_get_gr_face:
+ * hb_graphite2_face_get_gr_face: (skip)
  * @face: @hb_face_t to query
  *
  * Fetches the Graphite2 gr_face corresponding to the specified
@@ -195,10 +195,10 @@ _hb_graphite2_shaper_font_data_destroy (hb_graphite2_font_data_t *data HB_UNUSED
 
 #ifndef HB_DISABLE_DEPRECATED
 /**
- * hb_graphite2_font_get_gr_font:
+ * hb_graphite2_font_get_gr_font: (skip)
  * @font: An #hb_font_t
  *
- * Always returns %NULL. Use hb_graphite2_face_get_gr_face() instead.
+ * Always returns `NULL`. Use hb_graphite2_face_get_gr_face() instead.
  *
  * Return value: (nullable): Graphite2 font associated with @font.
  *
@@ -223,7 +223,7 @@ struct hb_graphite2_cluster_t {
   unsigned int base_glyph;
   unsigned int num_glyphs;
   unsigned int cluster;
-  unsigned int advance;
+  int advance;
 };
 
 hb_bool_t
@@ -318,7 +318,7 @@ _hb_graphite2_shape (hb_shape_plan_t    *shape_plan HB_UNUSED,
 
 #undef ALLOCATE_ARRAY
 
-  memset (clusters, 0, sizeof (clusters[0]) * buffer->len);
+  hb_memset (clusters, 0, sizeof (clusters[0]) * buffer->len);
 
   hb_codepoint_t *pg = gids;
   clusters[0].cluster = buffer->info[0].cluster;