Run Pebble OS in Browser via WASM

https://ericmigi.github.io/pebble-qemu-wasm/

by goranmoomin • 5 months ago

156 26 5 months ago

ericmigi.github.io

KetoManx64• 5 months ago

I'm blow away at what Devs are able to do within a browser nowadays.

More that browsers have gotten sprouted downwards and obtained all sorts of low level access than older browsers didn't use to have. I believe this is partially why tools that were meant to just render markup have gotten so complex to build that a small team of devs is not enough to build a modern browser anymore. And by that I mean from scratch, not just piggybacking on Chromium or Gecko.

idle_zealot• 5 months ago

I believe this is partially why tools that were meant to just render markup have gotten so complex to build that a small team of devs is not enough to build a modern browser anymore.

Isn't it basically the opposite? The hard parts of the browser are layout, styling, and multimedia stuff that goes into rendering markup compliantly. Then there's the infinite sink of optimization work for a JS engine, the high-level scripting language for that markup. The low level access that something like this emulator use is comparatively easy; a WASM runtime and Canvas blitting pixels from some shared buffer.

Or am I mistaken that a WASM engine is much easier to build than a performant JS engine?

pjmlp• 5 months ago

You could have done the same with plugins in the past.

afavour• 5 months ago

And now we don't need to use them and expose ourselves to security vulnerabilities. Win win.

quailfarmer• 5 months ago

I’m very mixed about WASM. It’s clearly a very cool technology, and enables cool things by allowing native performance without needing multi-platform support.

But at the same time, it provides a vector for foreign, non-free software to run on my computer. Every time someone sends me a Google doc blocking printing/copying (on _my_ computer!), it makes me want to join a monastery.

IshKebab• 5 months ago

Javascript already provides a way for foreign non-free software to run on your computer. WASM doesn't change anything about that.

mmmlinux• 5 months ago

Should I be getting more than .2 FPS?

davsti4• 5 months ago

I'm not even getting that - its stuck at: 10:26:18.027 Downloaded SPI flash: 16777216 bytes 10:26:18.027 [config] icount: off 10:26:18.028 [status] Loading QEMU WASM module (17MB)...

zb3• 5 months ago

Probably could be made faster by:

- using native exception handling

- getting rid of asyncify (but it would require JSPI)

See my experiments with TempleOS here: https://zb3.me/qemu-wasm-test/

mischief6• 5 months ago

08:46:37.125 [err] [fps] 4.0 (12 frames in 3.0s) 08:46:40.225 [err] [fps] 1.0 (3 frames in 3.1s) 08:46:41.224 FIRM | * ASSERTION FAILED: ASSERTN 08:46:41.443 [err] DEBUG post-reset: halted=0 stopped=1 R13=0x20002170 R15=0x080001b4 thumb=1 08:46:42.123 [err] clktree_recalc_output_freq: Clock PCLK1 output frequency (32000000 Hz) exceeds max frequency (30000000 Hz).

found an assertion just by clicking up/down. doesn't seem too stable.

cpfleming• 5 months ago

Yeah that happens when trying to go up into the timeline.

hemmert• 5 months ago

Pretty impressive!

donohoe• 5 months ago

Any way to load a local watch-face? Am hoping there is and I didn't see it. This would be very helpful for testing.

ezulabs• 5 months ago

Can already see a nice web based AI app builder on the way, also can be used to quickly try apps before pushing to the device as interactive app store.

Please watch out some qemu targets for Cortex m0 or m3, increasing ram from linker out of supported ranges will cause random crashes. Would love to contribute if you are looking for people to crash some issues.

Awesome effort btw.

pmkary• 5 months ago

Cool cool cool

sonu27• 5 months ago

Keeps crashing on iOS safari for me

ornornor• 5 months ago

Same

sciencesama• 5 months ago

can we run linux like this !!??

Eikon• 5 months ago

https://joelseverin.github.io/linux-wasm/

vsviridov• 5 months ago

Does not work in Firefox...

nacs• 5 months ago

Works fine for me in Firefox 147.

infotainment• 5 months ago

Really slow FPS for me (macOS, Firefox). Not really getting past 1fps...

wolttam• 5 months ago

Getting 2 fps on my iPhone SE 2020.. it’s nearly usable!

podlp• 5 months ago

Love the idea, would be great to see a modes to switch to circular interface for the Time Round 2. Definitely lots of potential for rapid iteration on new watch faces and apps!

Run Pebble OS in Browser via WASM

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