The original Xbox is x86 as well, the complex part is emulating the GPU, DSP, etc, which developers sometimes use at a very low level, setting registers, relying on HW quirks, etc (see: xqemu)
Maybe such low-level optimizations are now longer necessary with more powerful consoles, though?
Regarding GPU drivers, that seems quite doable, as the PS4 Linux port uses slightly modified open source drivers, and gets good performance, IIRC.
Maybe such low-level optimizations are now longer necessary with more powerful consoles, though?
Regarding GPU drivers, that seems quite doable, as the PS4 Linux port uses slightly modified open source drivers, and gets good performance, IIRC.