Hi-DPI patches for 4.2

[Norbert Thiebaud]

On Mon, Mar 10, 2014 at 1:24 PM, Jan Holesovsky <kendy at collabora.com> wrote:
> Hi Caolán, all,
>

>
> It is only 5 patches, as I have squashed the follow-up fixes into the
> appropriate patches, but other than that, it should bring us to the very
> same state that is in master.

Not quite.. I had to add a bunch of #ifndef MACOSX around most of it
(and I may have missed some)
so that it does not mess-up Macosx retina display support.
especially wrt to code that 'scale' BMPs....
as such I'm quite nervous to have that backported in the 'stable' release...

Norbert