howto-wasm-minimal
Dev tools
wasm build tutorial
SHOW HN2022
How HN took it
1 positive, 7 neutral or asking, 0 mixed, 4 critical, out of 12 comments about the project. Thread score -0.18.
Execution: 0 for, 2 againstPerformance: 0 for, 1 againstIdea: 1 for, 0 against
The thread, comment by comment
Each row is a top-level comment and its replies, in HN's order. Select a cell to open that comment on HN.
positive neutral or mixed critical about another commenter or something else the maker
What HN said
What people liked
Good resource for compiling without Emscripten
From 2 comments
These are also good resources on using wasm without dependencies: https://depth-first.com/articles/2019/10/16/compiling-c-to-webassembly-and-running-it-without-emscripten/…
bla3 on HNSee also my example I put together some time ago: https://github.com/PetterS/clang-wasm At the time, I could not find something like this online. It's fun to write your own…
petters on HN
Objections
Gray conversion uses simple average instead of luminance weights
From 2 comments
directly when reading this code I cannot help myself but to get into review-mode. It is an awesome example, which i will probably use myself one day. However... inc.cpp:27 Gray…
dosshell on HNFor future readers, this is the code that is being referred: https://github.com/ern0/howto-wasm-minimal/blob/master/inc.cpp#L31-L35 It should be: ``` uint32_t gray = 0.299 *…
syrusakbary on HN
Declaring memory as uint8_t instead of array is non-idiomatic
From 1 comment
This is really cool! I never looked into WASM before, I'm really happy to see it's not that difficult to build a simple example like this. One thing that's bothering me about…
moefh on HN
Requests
Zero-copy canvas access from C code
From 1 comment
(Obligatory:) Neat! Still, a lot of copying bits around, and more JS than one might hope for. Could you send a pointer to canvas into the C code and operate on it in a direct,…
drfuchs on HN
Support for compiling third-party C/C++ libraries
From 1 comment
This looks good! In my experience the hardest part for compiling WebAssembly is third party dependencies. Getting arbitrary libraries to build can be rather challenging.
melony on HN
Questions
How to compile Rust code to WASM without wasm-pack
From 1 comment
Very cool! I've been desperately looking for something similar for Rust. I'm too old for all these magic frameworks and "deployers" :-) I have some Rust code, possibly linking in…
gspr on HN
Is there a similar example for plain C
From 1 comment
Is there a similar example for C?
pulse7 on HN
Alternatives named
Emscripten
From 2 comments
Pedantically, it might even be undefined behaviour (not sure, maybe a point of contention, similar to container_of macro). It's unlikely to cause problems, but the way you…
jstimpfle on HNSee also my example I put together some time ago: https://github.com/PetterS/clang-wasm At the time, I could not find something like this online. It's fun to write your own…
petters on HN
wasm-pack (Rust)
From 1 comment
I made some emulators in Rust as a learning project during the start of the pandemic, and ran into the exact same issue when I wanted to make a wasm version to run in a browser.…
aquova on HN
wajic
From 1 comment
Since I haven't seen it mentioned in the comments yet, here's another interesting project in the general area of "WASM without Emscripten": https://github.com/schellingb/wajic…
flohofwoe on HN
WebAssembly Studio
From 1 comment
Do you know https://webassembly-studio.kamenokosoft.com/ ? I don't know if it compiles in the browser or on a server.
randomsilence on HN