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WASM-PNG

Combines a Javascript and WASM file into a single executable polygot PNG+HTML file.

Usage:

  • cargo install wasmpng
  • wasmpng --wasm-file my.wasm --js-file my.js
  • This will generate index.png.html which will automatically unpack and execute, loading itself as a PNG and extracting the data from there

NOTE: By default file access is blocked in Chrome, so you can't test this locally unless you spin up an HTTP server. Start Chrome with the --allow-file-access-from-file to remove this restriction.

The Javascript will receive the WASM as a regular array in arguments[0]. See the examples folder for an example.

You can also pass --max-width to restrict the width of the generated PNG.

Inspiration and parts of the loader code come from pnginator by Gasman et al.