Play! PS2 browser core, upstream 505dac7 (full commit in source git provenance).
BSD-2-Clause; notices for dependencies are retained in corresponding-source.tar.gz.
Built with Emscripten 4.0.20, Release, BUILD_PLAY=ON, BUILD_PSFPLAYER=OFF,
BUILD_TESTS=OFF, BUILD_LIBRETRO_CORE=OFF, USE_QT=OFF, USE_GLES=ON.
cmake -S play-source -B play-build -DCMAKE_TOOLCHAIN_FILE="$EMSDK/upstream/emscripten/cmake/Modules/Platform/Emscripten.cmake" -DCMAKE_BUILD_TYPE=Release -DBUILD_PSFPLAYER=OFF -DBUILD_TESTS=OFF -DUSE_QT=OFF -DUSE_GLES=ON
cmake --build play-build --target Play -j2
The source includes bounded async disc I/O, WebGL alpha-index emulation,
64-bit shader capability comparisons, JS input/state/pause exports and
preserved drawing buffers for screenshots. HLE firmware; no external BIOS.
Disc images are streamed by the integration in 1 MiB ranges with a 64 MiB cache.
No game or firmware data is part of this distribution.

23 October: register SCC TLB read/write callbacks through the native Wasm function table,
set system language to English and match /vfs/mc0 and /vfs/mc1 to the card persistence paths.
Native Gradius gameplay, pause, save/load and screenshot regression passed;
Commandos 2 and Splinter Cell Chaos Theory no longer fail Wasm validation.