WineD3D patch test needed

[Stefan Dösinger]

Hi,
I have a patch which fixes the performance problems introduced with 
c0782603d09807c6ca506948bb4a814a73430184 . I am sure that the patch is 
correct, but I have the bad feeling that it brings up a few other bugs, so I 
send it to wine-devel for testing first.

It only reallocates surfaces when they are either new or the description was 
changed.

Thanks,
Stefan