[v2 1/2] wined3d: Implement primitive restart index.

[Józef Kucia]

On Tue, Nov 22, 2016 at 3:02 PM, Henri Verbeet <hverbeet at gmail.com> wrote:
> On 21 November 2016 at 01:42, Józef Kucia <joseph.kucia at gmail.com> wrote:
>> Is it really safe to enable the primitive restart for all D3D
>> versions? Shouldn't we enable it just for D3D10+?
> It's probably "safe" in the sense that if previous versions don't have
> primitive restart, and that seems likely at this point, you'd probably
> get undefined behaviour instead, and primitive restart is as good of
> an undefined behaviour as any other. Unless it's a valid index of
> course, which is certainly a possibility with 16-bit indices in
> particular, if perhaps not likely.
>
> But regardless, we want to know for sure.

I've written some tests and the results indicate that 0xffff is a
valid index in D3D8 and D3D9. I'll submit patches soon.