[Bug 47392] Drakensang Online crashes when exiting fullscreen

https://bugs.winehq.org/show_bug.cgi?id=47392

--- Comment #2 from Henri Verbeet  ---
(In reply to Józef Kucia from comment #1)
> Other way to fix the problem is to send
> wined3d_device_set_cursor_properties() through the command stream.

Perhaps it's easier than that though. Texture destruction goes through the CS,
so even though device->cursor_texture may be NULL, the actual texture hasn't
been destroyed at that point. It may be worth a try to just store
swapchain->device->cursor_texture in a local variable, which is perhaps not a
bad idea regardless. (The issue of "bCursorVisible" and "hardwareCursor"
needing to be consistent with "cursor_texture" would remain of course, but
that's easy enough to fix.)