[Bug 38580] Secret Files 1-2, UFO:Extraterrestrials Gold: hardware mouse pointer missing/corrupted

https://bugs.winehq.org/show_bug.cgi?id=38580

--- Comment #2 from Stefan Dösinger  ---
Yeah, this sounds about right. I also missed it when I wrote the patches (only
looked for DDBLT_ALPHATEST in ddraw).

The bug should be easy to fix, but I am more curious why the game uses the
software d3d cursor in the first place.

The disappearing cursor at the edge of the screen can be fixed too. The problem
there is that we don't clip the blit operation and try to draw beyond the edge
of the backbuffer.