Win32: allow affinity changes in OpenGL output for nVidia GPU

This should allow to balance the GPU load across multiple nVidia graphics cards.
This patch introduces a new command line argument that allows the user
to set the nVidia card affinity.

Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>
Remove K&R macros from zip declarations.

This macro is called _Z_OF on my system, not OF. But it's only
there to support K&R function declarations, so just get rid of it
entirely.

Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>
Remove K&R macros from unzip declarations - 2

This macro is called _Z_OF on my system, not OF. But it's only
there to support K&R function declarations, so just get rid of it
entirely.

Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>