Palettized volume texture format conversion is unimplemented

[Triticum0]

Title

https://xemu.app/titles/4a410006/#Room-Zoom-Race-for-Impact

Bug Description

When trying to go in-game the game crashes with this assertion:
https://github.com/mborgerson/xemu/blob/5faa2419e7cfca1e03a8e3113de2df6453caf2e5/hw/xbox/nv2a/pgraph.c#L6368

Expected Behavior

Should be able to make it in-game

xemu Version

Version: 0.6.2
Branch: master
Commit: 5faa241
Date: Sat Nov 20 08:53:11 UTC 2021
Last-known Working: Unknown

System Information

Field	Value
OS	Ubuntu 20.04.3 LTS
CPU	Intel(R) Pentium(R) CPU 3825U @ 1.90GHz
Graphics Device	Mesa Intel(R) HD Graphics (BDW GT1)
Graphics Driver	Drivers: 4.6 (Core Profile) Mesa 21.0.3

Additional Context

Also NV097_SET_TEXTURE_FORMAT_COLOR_LC_IMAGE_CR8YB8CB8YA8,YB8CR8YA8CB8 and NV097_SET_TEXTURE_FORMAT_COLOR_SZ_R6G5B5) should properly also be fixed even through there no known use case for these assertions.
Edit: Tested on lasted build still crashes

[Ernegien]

This would be a good starting point for unit-testing, which I may do later :)

[dracc]

I haven't inspected code, issue is probably still present, but please consider updating your xemu - 0.5.0 is quite old by now.

[Triticum0]

@dracc I tested on masters, still crashes with the same assertion

[abaire]

Parameters when it asserts:

s.color_format == NV097_SET_TEXTURE_FORMAT_COLOR_SZ_I8_A8R8G8B8

width = 128
height = 128
depth = 32
row_pitch = 128
slice_pitch = 16384

palette data looks like it's at least pointing at something structured.