ddraw: Separate reference counting for IDirectDraw7 and IDDS4 from IDDS3, IDDS2 and IDDS (try 2)

[Luke Benstead]

2009/8/22 Stefan Dösinger <stefandoesinger at gmx.at>:
> I think it is better to separate the vtables first - ie, give
> IDirectDrawSurface4,  IDirectDrawSurface2 and IDirectDrawSurface their own
> vtable
>
> Also the last iteration of Michael Karcher's patches missed out some
> getters, like IDirect3DDevice*::GetRenderTarget. There may be other
> functions that need to be adjusted to AddRef/Release version specific
> refcounts.
>
>
>
>

Here are my likely broken patches that separate the surface thunks for
refcounting, from months ago. I think the first 4 are OK, but I named
the last one "broken" so I guess that one isn't ;)

Still it's a starting point.

Luke.
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