Roll HarfBuzz to 0.9.32

third_party/harfbuzz-ng/src/hb-fallback-shape.cc

 /*
  * Copyright © 2011  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 87 matching lines @@
   /* TODO
    *
    * - Apply fallback kern.
    * - Handle Variation Selectors?
    * - Apply normalization?
    *
    * This will make the fallback shaper into a dumb "TrueType"
    * shaper which many people unfortunately still request.
    */
 
-  bool has_space;
   hb_codepoint_t space;
-  has_space = font->get_glyph (' ', 0, &space);
+  bool has_space = font->get_glyph (' ', 0, &space);
 
   buffer->clear_positions ();
 
+  hb_direction_t direction = buffer->props.direction;
+  hb_unicode_funcs_t *unicode = buffer->unicode;
   unsigned int count = buffer->len;
-
+  hb_glyph_info_t *info = buffer->info;
+  hb_glyph_position_t *pos = buffer->pos;
   for (unsigned int i = 0; i < count; i++)
   {
-    if (has_space && buffer->unicode->is_default_ignorable (buffer->info[i].codepoint)) {
-      buffer->info[i].codepoint = space;
-      buffer->pos[i].x_advance = 0;
-      buffer->pos[i].y_advance = 0;
+    if (has_space && unicode->is_default_ignorable (info[i].codepoint)) {
+      info[i].codepoint = space;
+      pos[i].x_advance = 0;
+      pos[i].y_advance = 0;
       continue;
     }
-    font->get_glyph (buffer->info[i].codepoint, 0, &buffer->info[i].codepoint);
-    font->get_glyph_advance_for_direction (buffer->info[i].codepoint,
-                                           buffer->props.direction,
-                                           &buffer->pos[i].x_advance,
-                                           &buffer->pos[i].y_advance);
-    font->subtract_glyph_origin_for_direction (buffer->info[i].codepoint,
-                                               buffer->props.direction,
-                                               &buffer->pos[i].x_offset,
-                                               &buffer->pos[i].y_offset);
+    font->get_glyph (info[i].codepoint, 0, &info[i].codepoint);
+    font->get_glyph_advance_for_direction (info[i].codepoint,
+                                           direction,
+                                           &pos[i].x_advance,
+                                           &pos[i].y_advance);
+    font->subtract_glyph_origin_for_direction (info[i].codepoint,
+                                               direction,
+                                               &pos[i].x_offset,
+                                               &pos[i].y_offset);
   }
 
-  if (HB_DIRECTION_IS_BACKWARD (buffer->props.direction))
+  if (HB_DIRECTION_IS_BACKWARD (direction))
     hb_buffer_reverse (buffer);
 
   return true;
 }