He did implement some VT codes, the color demo at the end shows that. What he did not do was run the process through a pseudoterminal which is not native to Windows so it needs to run through the slow an emulation layer which I believe is the real problem here
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But more specifically, I'm pretty sure even back-compat parsing could probably be done an order of magnitude faster than it's being done now. I can't say for sure but I strongly suspect that code is not high-perf code, if one were to go look.
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Did you happen to go look at the glyph code they have? This comment says they already use a texture atlas: https://github.com/microsoft/terminal/issues/10362#issuecomment-862852850 … - Show replies
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I think that would make cmd/pwsh/etc. pretty unusable, but that's essentially what WSL does as I understand it since it has access to native ptys (though it has a bit of overhead going to the VM).
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