Comment # 6 on bug 59322 from Stefan Dösinger

I'll have a look at this function and see which check we fail, but I have my
doubts that it is Wine's fault. This code works fine on all other drivers -
nvidia, fglrx, r600g, osx drivers.

Also keep in mind that MSAA in Wine apps fails if Wine doesn't request the
multisampling, but it is enabled with GALLIUM_MSAA=n. I don't see how this can
possibly be a fault in Wine.