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This project allows running Sporth in Javascript / WebAssembly using emscripten. It does not use the emscripten-provided APIs such as OpenAL, but only provides a callback that generates audio into a buffer, to be called from JS using AudioContext script processor nodes or Web Audio worklets. Compared to the emscripten-provided APIs, this actually simplifies the glue code, and should result in fewer dropouts, also allowing the audio to keep playing in background tabs. This is based on the audio callback technique used in Sokol.

Building with emscripten

Make sure you have Premake5 and the emscripten SDK, then:

premake5 gmake
cd build/emscripten
emsdk activate latest
make config=release