glStencilMask() is defined as setting both front and back stencil
masks in GL 2.0+ and we don't want to use the EXT_stencil_two_side
entry points even if they happen to be available there.
D3D doesn't support separate front / back stencil write masks anyway.
Signed-off-by: Matteo Bruni <mbruni@codeweavers.com>
Signed-off-by: Henri Verbeet <hverbeet@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>