ole32: Don't lookup the address for the DllGetClassObject function for ole32.dll in the apartment loaded dll list.

Call the function directly for a small performance boost.

Spotted by Coverity.

Also adds a test for ddraw, d3d8 and d3d9.

D3DTEXF_NONE is a special value for mipmapping which disabled
mipmapping, but it is not a valid mag / min filter parameter.
D3DTEXF_POINT is what we want