Re: [PATCH v2 0/5] MR1693: wined3d: Gate feature level on the appropriate Vulkan features.

[Henri Verbeet (＠hverbeet)]

On Wed Dec  7 03:23:03 2022 +0000, Zebediah Figura wrote:
> > This is probably fine for simplicity, but note the existence of
>
> WINED3DPMISCCAPS_INDEPENDENTWRITEMASKS (and "NumSimultaneousRTs" more
> generally); this is not strictly a requirement for D3D 9.3.
> Is it not? [1] at least states it is. For d3d9 we'd presumably want to
> set WINED3DPMISCCAPS_INDEPENDENTWRITEMASKS appropriately (which,
> granted, I don't have a patch for yet) but in terms of setting feature
> levels it seems right?
> [1] https://learn.microsoft.com/en-us/windows/win32/direct3d11/overviews-direct3...

Oh, I was looking at the required features for Direct3D 9, not Direct3D 11 downlevel devices. For the most part that shouldn't matter too much, because we'll happily create a device with a lower feature level in d3d9, but we do restrict the maximum shader version based on the feature level (shader_max_version_from_feature_level()). I.e., AFAIK in d3d9 it should be possible to use shader model 3 shaders without having D3DPMISCCAPS_INDEPENDENTWRITEMASKS.