[PATCH 1/5] d3d9: Support drawing from D3DPOOL_SYSTEMMEM vertex buffers.

[Henri Verbeet]

On Thu, 13 Dec 2018 at 21:00, Axel Davy <davyaxel0 at gmail.com> wrote:
> Why not always allocate SYSTEMMEM buffers into GPU memory ?
> For example, GTT memory (without WC, thus fast cpu read), with
> persistent flags, which means you don't need to unlock.
> Then no upload is needed.
>
What Matteo said, but also because the documentation claims that
pretty much the only reason for drawing from D3DPOOL_SYSTEMMEM buffers
(as opposed to DEFAULT+DYNAMIC) is to limit GTT memory usage.

Henri