[PATCH v2 1/5] d3d9: Don't upload unused system memory vertex buffers.

[Matteo Bruni]

On Tue, Feb 26, 2019 at 4:54 PM Henri Verbeet <hverbeet at gmail.com> wrote:
>
> On Mon, 25 Feb 2019 at 21:31, Matteo Bruni <mbruni at codeweavers.com> wrote:
> > +    /* Make sure to only upload buffers that are used by the current draw:
> > +     * released buffers might still be bound as stream sources. */
> Thinking about it some more, does this really solve the issue? In
> particular, what about the case where the buffer is released, but also
> referenced by the vertex declaration? Shouldn't we just delay
> releasing the wined3d system memory buffer until
> wined3d_object_destroyed()?

I'll write a test for that case.
I think something like this patch will be useful anyway to avoid
spurious buffer uploads (not strictly for performance reasons, those
extra uploads did look somewhat confusing in the log.)