Re: wined3d/state: Treat unrecognized D3DZBUFFERTYPEs as D3DZB_TRUE. (try 2)

[Henri Verbeet]

I'm not so convinced there's value in this, considering there are no
known applications depending on this. Stefan thinks it's useful
anyway. If you do want to spend the effort to make this go in, note
that this affects ddraw and d3d8 as well, not just d3d9. The test
should probably just have a loop in depth_buffer_test() itself, or
even write a test specific for this purpose. The wined3d part might as
well handle the state as a BOOL, considering WINED3DZB_USEW isn't
handled all that different from WINED3DZB_TRUE, except for the FIXME.