Vouch request for clemg

[clemg]

What do you want to change?

I'd like to propose a bulk, per-row style readback to the render-state C API, mirroring the bulk cell readback that already exists (added in 74a233b ). I already have a working concept of this here (main...clemg:bulk-style-readback).
I also have a few other things I'd like to propose in the same area.

Why do you want to make this change?

I saw this tweet from Almonk a few days ago about their web client using webgl + libghostty, and his response which says the terminal emulator runs in WASM, and was curious about how libghostty runs in it. Reading a cell's style currently takes two calls per cell, so preparing a full screen is thousands of JS<->wasm boundary crossings per frame, but a bulk per-row readback makes it one call per row. I played with things a fair bit and noticed this, but I could probably talk about it more in detail in a dedicated PR 🤠

I acknowledge that:

• I have read the Contributing Guide and understand the contribution process.
• I have read and agree to follow the AI Usage Policy.
• I wrote this vouch request myself, in my own voice, without AI generating it.

[jcollie]

!vouch