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WIP: Support Qt for WebAssembly #294

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@Vogtinator Vogtinator commented Dec 29, 2022 •
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  • Needs better platform integration (file management and settings)
  • Must not break other platforms
  • Fix caching of emsdk libraries in the GH build
  • On Firefox on Android, the screen is drawn too large. I suppose the condition for iOS in qtframebuffer.cpp needs to be extended

@Vogtinator Vogtinator force-pushed the emscriptenfix branch 3 times, most recently from 29d8890 to f132010 Compare December 29, 2022 21:28
Vogtinator added a commit that referenced this pull request Dec 29, 2022
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Add Qt for WebAssembly build
21540b5 
#294 at f132010.
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Demo deployed at https://nspire-emus.github.io/firebird/wasm

@Vogtinator Vogtinator force-pushed the emscriptenfix branch 2 times, most recently from a27424d to 40374c8 Compare December 29, 2022 23:20
Vogtinator added a commit that referenced this pull request Dec 29, 2022
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Update Qt for WebAssembly build
2e220c9 
PR #294 At 40374c8.
@Vogtinator Vogtinator force-pushed the emscriptenfix branch 2 times, most recently from e7fda43 to de03b42 Compare December 30, 2022 18:52
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  • Fix caching of emsdk libraries in the GH build

Apparently that's because setup-emsdk behaves differently if the cache was found. If it's not found, it'll install emsdk into emsdk-main and create a cache in emsdk-cache. The system libs end up in emsdk-main in those builds, but only emsdk-cache is cached. If the cache is found, it uses emsdk-cache as emsdk location and build system libs inside that directory.

@Vogtinator Vogtinator force-pushed the emscriptenfix branch 5 times, most recently from db494c5 to 0850802 Compare December 30, 2022 20:51
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Fix caching of emsdk libraries in the GH build

Fixed by running emsdk manually instead of using the setup-emsdk action

@Vogtinator Vogtinator force-pushed the emscriptenfix branch 2 times, most recently from 5f11f3b to 522cb04 Compare December 30, 2022 22:21
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WIP: Basic wasm platform support
de9ea28 
Based on Adriweb's patch, but avoiding the QML file dialog.

CONFIG += ltcg causes the "-s X" options to be merged to a single "-s",
breaking build.
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Hacky way to achieve single-threaded execution
71044df 
Basically implement cooperative multitasking manually by converting EmuThread
into a QTimer.
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Add workflow for Qt for WebAssembly
a76f5a2
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Fix LCD size in WASM
6032683 
Same issue as on iOS also appears in browsers if scaling is used.
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-O3 -flto is not noticably faster compared to the default (-O3 for object files, -O2 for linking), but it takes twice as long to build.

Vogtinator added a commit that referenced this pull request Dec 30, 2022
@Vogtinator
Update Qt for WebAssembly build
513c585 
PR #294 At 6032683
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