Taher

[Taher @nullhook]

alternatively, you can deterministically read post-layout values using HTML-in-canvas onpaint event

keep a hidden <canvas content="drawable"> with an onpaint handler and call canvas.requestPaint() on demand

there's a subtle difference compared to the rAF+setTimeout hack though... onpaint will fire before frame N's commit whereas rAF+setTimeout runs after frame N's commit

[Aiden Bai @aidenybai]

neat way to measure layout time

(wrap function in setTimeout and requestAnimationFrame)

[Taher @nullhook]

@ccallac7 What’s on the glass? Is that frame N-3?

[Taher @nullhook]

@zack_overflow what’s the link to this post?

[Taher @nullhook]

@Bananaft are there limitations with msdfs?

[Taher @nullhook]

@rikarends is this some kind of a treemap visualization?

[Taher @nullhook]

@jesper_alpacka @LuisBizarro “The browser lays it out, the GPU paints it” this is what html in canvas effectively is

[Taher @nullhook]

Why can’t we make this into a metric similar to what web did with First Contentful Paint (FCP) and other metrics.

Also, these metrics should be baked into tools like https://t.co/WhffnYMlKd?

@KacperHarasim

[Mitchell Hashimoto @mitchellh]

We now have automated half-bounce analysis created by @infomiho! Paste an X post with a screen recording and it'll automatically analyze the frames, screenshot them, and produce a report for you. Example: https://t.co/IFpwmdxGRj Very cool!

[Taher @nullhook]

@dieworkwear I think buck mason carries Japanese denim

[Taher @nullhook]

@DanielcHooper does it use a similar rendering model to onedraw?

https://t.co/M9bGGJc1l8

[Taher @nullhook]

@nicbarkeragain Skia’s Graphite backend does something close to what @cmuratori is pointing at.

[Taher @nullhook]

@eduardbodak Do you have a minimal example of what doesn’t work with Safari?

[Taher @nullhook]

@DavidSHolz walks help

[Taher @nullhook]

"recursion seems really clever, if you live in a universe with an infinite stack."

[Taher @nullhook]

so from Rust's view, a codebase written in cpp is basically a scattered unsafe { } blocks

[Taher @nullhook]

@yiningkarlli libicu is another surprising place

[Taher @nullhook]

@_chenglou positive reinforcement

[Taher @nullhook]

@50onice Don’t they pin to a WebKits revision in the bun repo? You can build the JSC + WTF + libmalloc component yourself

[Taher @nullhook]

measureText performs a style re-calc and only performs layout (for container queries) if the style resolver requires it. In most cases, it won’t.

also, for a detached canvas, measureText goes straight to shaping and metrics since it is completely detached from the document’s style and layout system.

[Jake Archibald @jaffathecake]

@birch_js Right, getBoundingClientRect will force a layout _if_ layout is stale. Otherwise it won't. But, measureText is performing layout work too, that's how it works.

The key is to avoid interleaving layout reads &amp; writes, or isolate their impact.

[Taher @nullhook]

They should port cs1.6 to 64bit using ClaudeCode

[Taher @nullhook]

@tszzl that’s called test-time compute