Roll HarfBuzz to 1.4.1

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

 /*
  * Copyright © 2009  Red Hat, Inc.
  * Copyright © 2009  Keith Stribley
  * Copyright © 2015  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
@@ skipping 18 matching lines @@
 
 #include "hb-private.hh"
 
 #include "hb-ft.h"
 
 #include "hb-font-private.hh"
 
 #include "hb-cache-private.hh" // Maybe use in the future?
 
 #include FT_ADVANCES_H
+#include FT_MULTIPLE_MASTERS_H
 #include FT_TRUETYPE_TABLES_H
 
 
 
 #ifndef HB_DEBUG_FT
 #define HB_DEBUG_FT (HB_DEBUG+0)
 #endif
 
 
 /* TODO:
@@ skipping 560 matching lines @@
   _hb_ft_font_set_funcs (font, ft_face, false);
   hb_font_set_scale (font,
                      (int) (((uint64_t) ft_face->size->metrics.x_scale * (uint64_t) ft_face->units_per_EM + (1u<<15)) >> 16),
                      (int) (((uint64_t) ft_face->size->metrics.y_scale * (uint64_t) ft_face->units_per_EM + (1u<<15)) >> 16));
 #if 0 /* hb-ft works in no-hinting model */
   hb_font_set_ppem (font,
                     ft_face->size->metrics.x_ppem,
                     ft_face->size->metrics.y_ppem);
 #endif
 
+#ifdef HAVE_FT_GET_VAR_BLEND_COORDINATES
+  FT_MM_Var *mm_var = NULL;
+  if (!FT_Get_MM_Var (ft_face, &mm_var))
+  {
+    FT_Fixed coords[mm_var->num_axis];
+    int hbCoords[mm_var->num_axis];
+    if (!FT_Get_Var_Blend_Coordinates (ft_face, mm_var->num_axis, coords))
+    {
+      for (int i = 0; i < mm_var->num_axis; ++i)
+        hbCoords[i] = coords[i] >> 2;
+
+      hb_font_set_var_coords_normalized (font, hbCoords, mm_var->num_axis);
+    }
+  }
+  free (mm_var);
+#endif
+
   return font;
 }
 
 /**
  * hb_ft_font_create_referenced:
  * @ft_face:
  *
  * 
  *
  * Return value: (transfer full): 
@@ skipping 88 matching lines @@
                           0, font->y_scale < 0 ? -1 : +1};
     FT_Set_Transform (ft_face, &matrix, NULL);
   }
 
   ft_face->generic.data = blob;
   ft_face->generic.finalizer = (FT_Generic_Finalizer) _release_blob;
 
   _hb_ft_font_set_funcs (font, ft_face, true);
   hb_ft_font_set_load_flags (font, FT_LOAD_DEFAULT | FT_LOAD_NO_HINTING);
 }