wasi

WASI experiment.

Build procedure

Setup wasi-sdk https://github.com/WebAssembly/wasi-sdk

Edit WASI_VERSION and path to wasi-sdk in bootstrap-wasi.sh, then

$ ./bootstrap-wasi.sh
$ cd build
$ make

Note

Binary size

Currently it is less than 4MB when compiled with -DCMAKE_BUILD_TYPE=MinSizeRel (650 KB when gzip compressed).

Run

Currently tested by running app with wasmtime.

https://github.com/bytecodealliance/wasmtime

https://github.com/bytecodealliance/wasmtime/blob/main/docs/WASI-tutorial.md

Install wasmtime, then copy example USD file to build folder(where tinyusdz_wasi is located. Otherwise add path using --dir option)

$ cp ../../../models/cube-previewsurface.usda .
$ wasmtime --dir=. tinyusdz_wasi cube-previewsurface.usda

TODO

• Unify CMakeList.txt with /CMakelist.txt
• Write WASI specific AssetResolution/FileSystemHandler example.