3/2 WineD3D: add D3DPRASTERCAPS_MULTISAMPLE_TOGGLE support

[Roderick Colenbrander]

> > Hi,
> >
> > Add a missing d3d9 capability. For now add it behind a dxVersion check.
> We
> > should get rid of those after Wine 1.0 but right now there is no
> filtering
> > code in d3d8, so don't risk any regressions now.
> IMHO adding a caps filter to dx8 is less risky than adding multisampling 
> support, so I don't see a reason not to do that and avoid the dxVersion
> check
> 

Personally I would prefer to the filtering the proper way. With this I mean to do it for all d3d8 caps and not just for this one. I think it is bad to spread the 'filtering' over wined3d and d3d8, d3d9. It should either all be in wined3d (bad) or in d3d8 / d3d9.

Roderick
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