Enabling proper OpenGL support

[jacereda]

I have seen some references that seem to imply that OpenGL is working properly. I'm afraid it's using llvmpipe instead of the accelerated support in WSLg. My reason to believe that is that Mesa doesn't seem to be built with the d3d12 gallium driver enabled. Can anyone confirm this point? The output of glxinfo should suffice.

Thanks!

[shayne]

Here's glxinfo output

https://gist.github.com/shayne/729162d77e6a8469564f88566b953372

[jacereda]

OpenGL renderer string: llvmpipe (LLVM 13.0.1, 256 bits)

So, should we open a ticket on Nixpkgs to include support for d3d12 in galliumDrivers or can this be handled here as an overlay?

[jacereda]

       > Run-time dependency directx-headers found: NO (tried pkgconfig and cmake)
       > Run-time dependency directx-headers found: NO (tried pkgconfig and cmake)
       > Looking for a fallback subproject for the dependency DirectX-Headers

Looks like adding support for d3d12 implies packaging https://github.com/microsoft/DirectX-Headers as well.

[I-Want-ToBelieve]

Has anyone successfully enabled opengl rendering in nixos-wsl now?

I have tried many times and it only shows that it is the software rendering of llvmpipe.

I am not sure what the problem is.

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Welcome to fish, the friendly interactive shell
Type help for instructions on how to use fish

~
❯ wsl.exe --version
WSL 版本： 1.2.5.0
内核版本： 5.15.90.1
WSLg 版本： 1.0.51
MSRDC 版本： 1.2.3770
Direct3D 版本： 1.608.2-61064218
DXCore 版本： 10.0.25131.1002-220531-1700.rs-onecore-base2-hyp
Windows 版本： 10.0.19045.3570

~
❯  glxinfo -B
name of display: :0
display: :0  screen: 0
direct rendering: Yes
Extended renderer info (GLX_MESA_query_renderer):
    Vendor: Mesa (0xffffffff)
    Device: llvmpipe (LLVM 15.0.7, 256 bits) (0xffffffff)
    Version: 23.1.7
    Accelerated: no
    Video memory: 15911MB
    Unified memory: yes
    Preferred profile: core (0x1)
    Max core profile version: 4.5
    Max compat profile version: 4.5
    Max GLES1 profile version: 1.1
    Max GLES[23] profile version: 3.2
Memory info (GL_ATI_meminfo):
    VBO free memory - total: 0 MB, largest block: 0 MB
    VBO free aux. memory - total: 14040 MB, largest block: 14040 MB
    Texture free memory - total: 31 MB, largest block: 31 MB
    Texture free aux. memory - total: 14040 MB, largest block: 14040 MB
    Renderbuffer free memory - total: 31 MB, largest block: 31 MB
    Renderbuffer free aux. memory - total: 14040 MB, largest block: 14040 MB
Memory info (GL_NVX_gpu_memory_info):
    Dedicated video memory: 980782 MB
    Total available memory: 996694 MB
    Currently available dedicated video memory: 31 MB
OpenGL vendor string: Mesa
OpenGL renderer string: llvmpipe (LLVM 15.0.7, 256 bits)
OpenGL core profile version string: 4.5 (Core Profile) Mesa 23.1.7
OpenGL core profile shading language version string: 4.50
OpenGL core profile context flags: (none)
OpenGL core profile profile mask: core profile

OpenGL version string: 4.5 (Compatibility Profile) Mesa 23.1.7
OpenGL shading language version string: 4.50
OpenGL context flags: (none)
OpenGL profile mask: compatibility profile

OpenGL ES profile version string: OpenGL ES 3.2 Mesa 23.1.7
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.20


~
❯ ls /dev/ | rg dxg
dxg

~
❯

[I-Want-ToBelieve]

By the way, it is now possible to run kde plasma x11 through xwayland

❯ nix-shell -p xwayland

[nix-shell:~]$ cat ./startkde.sh
#!/usr/bin/env sh
echo 1
Xwayland :1 &
echo 2
xw_pid=$!
echo 3
WAYLAND_DISPLAY=no DISPLAY=:1 dbus-launch startplasma-x11
echo 4
kill $xw_pid
echo 5

[nix-shell:~]$ ./startkde.sh
1
2
3