Update harfbuzz-ng to 0.9.27

third_party/harfbuzz-ng/src/hb-uniscribe.cc

 /*
  * Copyright © 2011,2012,2013  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
  * all copies of this software.
@@ skipping 691 matching lines @@
       }
     }
 
     if (!range_records.len) /* No active feature found. */
       goto fail_features;
 
     /* Fixup the pointers. */
     for (unsigned int i = 0; i < range_records.len; i++)
     {
       range_record_t *range = &range_records[i];
-      range->props.potfRecords = feature_records.array + reinterpret_cast<unsigned int> (range->props.potfRecords);
+      range->props.potfRecords = feature_records.array + reinterpret_cast<uintptr_t> (range->props.potfRecords);
     }
   }
   else
   {
   fail_features:
     num_features = 0;
   }
 
 #define FAIL(...) \
   HB_STMT_START { \
@@ skipping 46 matching lines @@
     for (unsigned int i = 0; i < buffer->len; i++)
     {
       hb_codepoint_t c = buffer->info[i].codepoint;
       unsigned int cluster = buffer->info[i].cluster;
       log_clusters[chars_len++] = cluster;
       if (c >= 0x10000 && c < 0x110000)
         log_clusters[chars_len++] = cluster; /* Surrogates. */
     }
   }
 
-  /* All the following types are sized in multiples of sizeof(int). */
-  unsigned int glyphs_size = scratch_size / ((sizeof (WORD) +
-                                              sizeof (SCRIPT_GLYPHPROP) +
-                                              sizeof (int) +
-                                              sizeof (GOFFSET) +
-                                              sizeof (uint32_t))
-                                             / sizeof (int));
+  /* The -2 in the following is to compensate for possible
+   * alignment needed after the WORD array.  sizeof(WORD) == 2. */
+  unsigned int glyphs_size = (scratch_size * sizeof (int) - 2)
+                           / (sizeof (WORD) +
+                              sizeof (SCRIPT_GLYPHPROP) +
+                              sizeof (int) +
+                              sizeof (GOFFSET) +
+                              sizeof (uint32_t));
 
   ALLOCATE_ARRAY (WORD, glyphs, glyphs_size);
   ALLOCATE_ARRAY (SCRIPT_GLYPHPROP, glyph_props, glyphs_size);
   ALLOCATE_ARRAY (int, advances, glyphs_size);
   ALLOCATE_ARRAY (GOFFSET, offsets, glyphs_size);
   ALLOCATE_ARRAY (uint32_t, vis_clusters, glyphs_size);
 
   /* Note:
    * We can't touch the contents of glyph_props.  Our fallback
    * implementations of Shape and Place functions use that buffer
@@ skipping 213 matching lines @@
   }
 
   if (backward)
     hb_buffer_reverse (buffer);
 
   /* Wow, done! */
   return true;
 }