Roll HarfBuzz to 1.4.1

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

 /*
  * Copyright © 2009  Red Hat, Inc.
  * Copyright © 2012  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 1147 matching lines @@
   if (unlikely (hb_object_is_inert (font)))
     return font;
 
   font->parent = hb_font_reference (parent);
 
   font->x_scale = parent->x_scale;
   font->y_scale = parent->y_scale;
   font->x_ppem = parent->x_ppem;
   font->y_ppem = parent->y_ppem;
 
+  /* TODO: copy variation coordinates. */
+
   return font;
 }
 
 /**
  * hb_font_get_empty:
  *
  * 
  *
  * Return value: (transfer full)
  *
  * Since: 0.9.2
  **/
 hb_font_t *
 hb_font_get_empty (void)
 {
   static const hb_font_t _hb_font_nil = {
     HB_OBJECT_HEADER_STATIC,
 
     true, /* immutable */
 
     NULL, /* parent */
     const_cast<hb_face_t *> (&_hb_face_nil),
 
     1000, /* x_scale */
     1000, /* y_scale */
 
     0, /* x_ppem */
     0, /* y_ppem */
 
+    0, /* num_coords */
+    NULL, /* coords */
+
     const_cast<hb_font_funcs_t *> (&_hb_font_funcs_nil), /* klass */
     NULL, /* user_data */
     NULL, /* destroy */
 
     {
 #define HB_SHAPER_IMPLEMENT(shaper) HB_SHAPER_DATA_INVALID,
 #include "hb-shaper-list.hh"
 #undef HB_SHAPER_IMPLEMENT
     }
   };
@@ skipping 34 matching lines @@
 #include "hb-shaper-list.hh"
 #undef HB_SHAPER_IMPLEMENT
 
   if (font->destroy)
     font->destroy (font->user_data);
 
   hb_font_destroy (font->parent);
   hb_face_destroy (font->face);
   hb_font_funcs_destroy (font->klass);
 
+  free (font->coords);
+
   free (font);
 }
 
 /**
  * hb_font_set_user_data: (skip)
  * @font: a font.
  * @key: 
  * @data: 
  * @destroy: 
  * @replace: 
@@ skipping 269 matching lines @@
 void
 hb_font_get_ppem (hb_font_t *font,
                   unsigned int *x_ppem,
                   unsigned int *y_ppem)
 {
   if (x_ppem) *x_ppem = font->x_ppem;
   if (y_ppem) *y_ppem = font->y_ppem;
 }
 
 
+void
+hb_font_set_var_coords_normalized (hb_font_t *font,
+                                   int *coords, /* XXX 2.14 normalized */
+                                   unsigned int coords_length)
+{
+  if (font->immutable)
+    return;
+
+  /* Skip tail zero entries. */
+  while (coords_length && !coords[coords_length - 1])
+    coords_length--;
+
+  int *copy = coords_length ? (int *) calloc (coords_length, sizeof (coords[0])) : NULL;
+  if (unlikely (coords_length && !copy))
+    return;
+
+  free (font->coords);
+
+  if (coords_length)
+    memcpy (copy, coords, coords_length * sizeof (coords[0]));
+
+  font->coords = copy;
+  font->num_coords = coords_length;
+}
+
+
 #ifndef HB_DISABLE_DEPRECATED
 
 /*
  * Deprecated get_glyph_func():
  */
 
 struct hb_trampoline_closure_t
 {
   void *user_data;
   hb_destroy_func_t destroy;
@@ skipping 106 matching lines @@
                                         trampoline_destroy);
 
   trampoline_reference (&trampoline->closure);
   hb_font_funcs_set_variation_glyph_func (ffuncs,
                                           hb_font_get_variation_glyph_trampoline,
                                           trampoline,
                                           trampoline_destroy);
 }
 
 #endif /* HB_DISABLE_DEPRECATED */