Wraps around glib for convenience and ease of use.

Will be adding font_funcs subclassing instead.

Should be all set now.

Because the following loop overflows:

  while (size > new_allocated)
      new_allocated += (new_allocated >> 1) + 32;

With gcc on arm, request 8-bit structure alignment.

And hb-view --direction argument.

Now that we use C++ for all source code, lets benefit from it!

The hb_be_int16/32_get/put/eq() macros grow code size if replaced with
inline functions, so leave them as is.

Would have been nice if gcc had warned...

Makes way for adding arbitrary user_data support.

Reported by Adam Twardoch.

Talking to Ryan Lortie, he thinks my comment doesn't make sense.

So I'm making the getter const.  Note that g_atomic_int_get()
casts that away itself, so we don't need to worry about that
(which kinda makes me uncomfortable actually).

Unused right now.