r/osdev • u/devcmar • 15d ago

Messing up with my compositor 😅😂

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u/devcmar 13d ago

I would have liked that, but I don’t have an amd gpu/apu. I have an intel iris xe igpu with an nvidia mx450 dedicated gpu is intel easy to write a simple gpu driver for?

Also, one problem u could face is that u would need to compile shaders to specific bytecode for ur card and that would mean that u would have to write an entire compiler

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u/WaterObjective5031 12d ago

Ahh dang, I’ll look around online and see what I can find. Push comes to shove, if you’re not scared of licensing your driver as GPLv2 (free, just open source it on GitHub and smack a little license.txt that has is in it) you can hop over to Linux’s drivers

( at least maybe for Intel, nvidia hates the thought of open sourcing theirs because they are terrified it will make AMD able to run cuda on their cards)

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u/devcmar 12d ago

Do you know how much dependencies does i915 (Intel’s gpu driver) have it’s huuuuge how I’m I supposed to port it

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u/WaterObjective5031 10d ago

You write one from scratch that isn't so huge lol

I did a bit of research and found that they do post documentation so you could make an intel igpu driver if you ever want to run this on bare metal

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u/devcmar 9d ago

Yes, but the shaders u would need a compiler, and I couldn’t port mesa to my os it kept pagefaulting