The surfaces are already in WINED3D_POOL_MANAGED.

This is the ARB equivalent to e0494afa.

If the application actually wants to do 3D rendering on the primary surface,
it should set DDSCAPS_3DDEVICE as well.

Also remove the tcgetattr check that is no longer used.

In preparation for WGL_EXT_swap_control_tear support, transition to using glXSwapIntervalEXT.

This is needed on FreeBSD 8.1.