[eterps]

That wouldn't be too hard if GPU's would have a stable interface. Try programming a GPU in Assembly language and see how that goes. The experience sucks, but that's the level that needs to be targeted in case of an OS.

[eterps]

For example, in the past Amiga computers had a 'GPU' (although much less powerful than todays GPUs) with a stable interface. It was a first class citizen in its OS. It also was incredibly easy to target in Assembly language.

[pjmlp]

Blitter was great, but those were simpler times.

The best we have nowadays is using compute shaders for the same purpose.

Just like when using a TMS34010 with its C SDK.

[mepian]

Amiga died because it was stuck with the same old "GPU" for too long, among other reasons.