[Bug 40465] The sting demo is mainly black

https://bugs.winehq.org/show_bug.cgi?id=40465

--- Comment #3 from Matteo Bruni  ---
I don't think there are legitimate places to download those old SDKs anymore.

They might not be necessary though. d3d7 returns the D3DSTATUS_* flags while
d3d3 uses the D3DVIS_* flags, like you noticed. It should be possible to modify
d3d_device3_ComputeSphereVisibility to convert from the d3d7-style return flags
to the d3d3-style ones. Also (unrelated bug) notice that the d3d7 version
should also check visibility with the user clipplanes, which apparently were a
new feature in that DirectX version.

Anyway, the first step is to cleanup and port the ComputeSphereVisibility test
from d3d.c to ddraw7.c and ddraw4.c.