From: Patrice Mandin <pmandin@caramail.com>
Subject: [SDL] [PATCH] Atari port, bug in xbios driver driver

Hello,
This patch correct a stupid mistake in the FlipHWSurface
function, where I forgot to update surface->pixels when
using a double buffered surface.

--HG--
extra : convert_revision : svn%3Ac70aab31-4412-0410-b14c-859654838e24/trunk%40312