Roll HarfBuzz to 1.4.6

third_party/harfbuzz-ng/src/hb-font-private.hh

 /*
  * Copyright © 2009  Red Hat, Inc.
  * 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
@@ skipping 98 matching lines @@
   unsigned int y_ppem;
 
   /* Font variation coordinates. */
   unsigned int num_coords;
   int *coords;
 
   hb_font_funcs_t   *klass;
   void              *user_data;
   hb_destroy_func_t  destroy;
 
+  enum dirty_t {
+    NOTHING     = 0x0000,
+    FACE        = 0x0001,
+    PARENT      = 0x0002,
+    FUNCS       = 0x0004,
+    SCALE       = 0x0008,
+    PPEM        = 0x0010,
+    VARIATIONS  = 0x0020,
+  } dirty;
+
   struct hb_shaper_data_t shaper_data;
 
 
   /* Convert from font-space to user-space */
   inline int dir_scale (hb_direction_t direction)
   { return HB_DIRECTION_IS_VERTICAL(direction) ? y_scale : x_scale; }
   inline hb_position_t em_scale_x (int16_t v) { return em_scale (v, x_scale); }
   inline hb_position_t em_scale_y (int16_t v) { return em_scale (v, y_scale); }
   inline hb_position_t em_scalef_x (float v) { return em_scalef (v, this->x_scale); }
   inline hb_position_t em_scalef_y (float v) { return em_scalef (v, this->y_scale); }
@@ skipping 407 matching lines @@
     int64_t scaled = v * (int64_t) scale;
     scaled += scaled >= 0 ? upem/2 : -upem/2; /* Round. */
     return (hb_position_t) (scaled / upem);
   }
   inline hb_position_t em_scalef (float v, int scale)
   {
     return (hb_position_t) (v * scale / face->get_upem ());
   }
 };
 
+HB_MARK_AS_FLAG_T (hb_font_t::dirty_t);
+
 #define HB_SHAPER_DATA_CREATE_FUNC_EXTRA_ARGS
 #define HB_SHAPER_IMPLEMENT(shaper) HB_SHAPER_DATA_PROTOTYPE(shaper, font);
 #include "hb-shaper-list.hh"
 #undef HB_SHAPER_IMPLEMENT
 #undef HB_SHAPER_DATA_CREATE_FUNC_EXTRA_ARGS
 
 
 #endif /* HB_FONT_PRIVATE_HH */