Xbox Series S/X UWP

[Marek Olšák]

> I'd love to see Mesa used to bring Vulkan to consoles!

Ever heard of Steam Deck? ;)

Marek

On Mon, Jun 6, 2022 at 12:59 PM Jason Ekstrand <jason at jlekstrand.net> wrote:

> On Mon, Jun 6, 2022 at 11:38 AM Jesse Natalie <jenatali at microsoft.com>
> wrote:
>
>> (Hopefully this goes through and not to spam like last time I tried to
>> respond…)
>>
>>
>>
>> No, neither of these would currently work with UWP.
>>
>>
>>
>> The primary reason is that neither Khronos API has extensions to
>> initialize the winsys on top of the UWP core window infrastructure. In
>> theory, you could initialize Dozen for offscreen rendering and then
>> explicitly marshal the contents out – that would probably work actually.
>> There’s 2 more gotchas there though:
>>
>>    1. The ICD loaders (OpenGL32.dll, Vulkan-1.dll) are not available in
>>    the UWP environment. You could explicitly use the non-ICD version of GL
>>    (i.e. Mesa’s OpenGL32.dll from the libgl-gdi target), include the
>>    open-source Vulkan ICD loader, or use the ICD version of either
>>    (OpenGLOn12.dll/libgallium_wgl.dll for GL – I plan to delete the former at
>>    some point and just use the latter at some point; vulkan_dzn.dll for VK).
>>
>> If the objective here is to write a Vulkan app and ship it in UWP, I
> don't see any reason why it couldn't be used for that eventually.  Without
> the loader, you can still load the driver DLL directly.  You just have to
> use vkGetInstance/DeviceProcAddr for everything because drivers don't
> expose the Vulkan 1.0 API symbols (the loader does).  We'd also have to
> come up with a story for window-system integration, as Jesse alluded.  I'd
> love to see Mesa used to bring Vulkan to consoles!  Unfortunately, no one's
> working on that currently or has any plans, as far as I know.
>
> --Jason
>
>
>
>>
>>    1.
>>    2. There’s not currently extensions for D3D12 interop either spec’d
>>    or implemented.
>>
>>
>>
>> There’s one more problem for GL that I don’t think is problematic for VK,
>> which is that it uses APIs that are banned from the UWP environment,
>> specifically around inserting window hooks for Win32 framebuffer lifetime
>> management. So you’d probably have to build a custom version that has all
>> of that stuff stripped out to get it to be shippable in a UWP.
>>
>>
>>
>> We (Microsoft) don’t really have plans to add this kind of stuff, at
>> least not in the near future, but I’d be open to accepting contributions
>> that enable this.
>>
>>
>>
>> -Jesse
>>
>>
>>
>> *From:* mesa-dev <mesa-dev-bounces at lists.freedesktop.org> *On Behalf Of *Daniel
>> Price
>> *Sent:* Monday, June 6, 2022 5:41 AM
>> *To:* mesa-dev at lists.freedesktop.org
>> *Subject:* [EXTERNAL] Xbox Series S/X UWP
>>
>>
>>
>> You don't often get email from riverprice at hotmail.com. Learn why this is
>> important <https://aka.ms/LearnAboutSenderIdentification>
>>
>> Hi, I was wandering if these two layers would work with UWP on Xbox
>> Series Console or if not will there be plans to add support?
>>
>>
>>
>> https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/14766
>>
>>
>>
>> https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/14881
>>
>>
>>
>> Many Thanks
>>
>> Dan
>>
>
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