[PATCH 5/5] wined3d: Treat NOOVERWRITE maps on a previously discarded buffer as if they were DISCARD maps.

[Zebediah Figura]

On 2/17/22 00:13, Zebediah Figura wrote:
> For the purposes of wined3d_cs_map_upload_bo().
> 
> That is, if a buffer was just created or just discarded [e.g. with
> wined3d_device_evict_managed_resources()], and then subsequently mapped with
> WINED3D_MAP_NOOVERWRITE, treat it as if it had been mapped with
> WINED3D_MAP_DISCARD instead, thus allowing the adapter_alloc_upload_bo callback
> to allocate a new buffer from the client thread.
> 
> Signed-off-by: Zebediah Figura <zfigura at codeweavers.com>
> ---
> This was the source of a bunch of stalls in Grand Theft Auto V, although it's
> hard to measure a difference in performance.

Sorry, please ignore this one; it needs work...