v2:
- removed todo from now succeeding tests in quartz/tests/vmr7 (also made todo caps test a bit more explicit WRT why is it todo); - added regression test to ddraw/tests. Reproducing what the game does is a bit not straightforward. For one, _SetDisplayMode for 8 bit it does fails on modern Windows (probably without a compatibility shim workaround). But tests with fourcc formats tests the same issue the patch here concerns.