feat: WASM modules based simulation in Companion by raphaelcoeffic · Pull Request #6435 · EdgeTX/edgetx

raphaelcoeffic · 2025-07-11T13:25:02Z

This is a conversion of libsimulator plug-ins to WASM / WASI-threads.

Also included:

streamline simulator plug-in to depend only on threads and file system operations (no SDL dependency).
remove Qt fully from radio/src.
Companion macOS is now built with universal binaries.

Release m_mutex before emitting lcdChange(true) — the connected slot onLcdChange() calls lcdFlushed() which needs to re-acquire the same non-recursive QMutex, causing a deadlock on the main thread. This froze the UI entirely; the most visible symptom was button blink timers never firing so buttons stayed red permanently. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

The pre-built SDL2 framework has install name @rpath/SDL2.framework/Versions/A/SDL2, so the entire .framework directory must be copied into Contents/Frameworks — not just the bare binary. Detect when IMPORTED_LOCATION points inside a .framework and copy the framework root instead. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Replace manual SDL2 bundling with CMake 3.21's install(IMPORTED_RUNTIME_ARTIFACTS) which handles .framework dirs, .dylib, and .dll automatically. Bump cmake_minimum_required to 3.21. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

CMake 3.21 treats missing source files as errors. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

install(IMPORTED_RUNTIME_ARTIFACTS) with FRAMEWORK destination doesn't work for the imported SDL2 target. Revert macOS to the proven get_target_property + regex + file(INSTALL) approach while keeping IMPORTED_RUNTIME_ARTIFACTS for Windows. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

…l rename Set OUTPUT_NAME on the companion target so CMake creates the bundle as "EdgeTX Companion 3.0.app" directly, eliminating the fragile file(RENAME) hack that caused install ordering issues with SDL2 bundling and other post-install steps. Also switches macOS SDL2 bundling to install(IMPORTED_RUNTIME_ARTIFACTS) which now works correctly since install() ordering is no longer broken by the rename. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Firmware side: - getLuxSensorValue() reads from ADC input instead of hardcoded 1024 - simu_start_conversion() reads all ADC inputs including LUX Companion side: - Add AIT_LUX enum and "LUX" mapping to input type lookup table - Recognize AIT_LUX inputs as available pots in the simulator UI - Remove hardcoded TX16S MK3 "LIGHT" fallback, use JSON-defined LUX input with default "Ambient light" label Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

…M simulator The WASM simulator interface was missing backlight state reporting (always hardcoded to true) and function switch RGB LED color updates. This caused three issues: LCD backlight ON/OFF not working for mono/gray radios, OLED displays showing white text on light background instead of black, and customisable switch RGB colours not updating on TX15/GX12. Add simuGetBacklightState, simuGetNumFuncSwitches, simuGetFSLedColor, and simuGetFSSwitchIndex WASM exports, and wire them into the Companion WASM interface. Also fix build-wasm-modules.sh to not nuke the entire build/ directory on each run. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

The capability check ran during the constructor before the WASM module was loaded, so getCapability always returned 0 and the button stayed disabled. Defer the check to the started() signal when the module is ready. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

- Fix v4 SimulatorOptions deserializer reading flags into simulatorId - Always use profile's fwType() and sdPath() as authoritative source instead of stale copies in stored simulatorOptions - Fix simulator dropdown empty: resolve simulatorId through SimulatorLoader::findSimulatorByName() to match registered names (WASM modules register without "edgetx-" prefix) - Fix data file dialog using getSaveFileName instead of getOpenFileName - Copy WASM modules to both companion and simulator app bundles Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

pfeerick · 2026-03-19T08:31:05Z

Ah nice, I was just in the process of fixing the changed simulator naming issue when I realised you'd pushed the changes. Initial look on windows looks good... I'll give it a proper look in the morning and hopefully merge.

pfeerick · 2026-03-20T02:19:03Z

Right, so repeat testing on Windows, Linux and MacOS(!!) everything seems to be generally working. I may need your help in re-building windows build environment as with the changes to wasm it is completely broken now, but I'll see how that goes.

There does seem to be one universal regression - volume for sound is a lot lower than it used to be... perhaps half the prior volume or one-third. Not worth holding this up, at least everything seems to be back to how it should be! :)

philmoz · 2026-03-20T04:38:41Z

How do I build simulator libraries on MacOS with this????

My build setup is now completely broken stopping any work I was doing on EdgeTX.

raphaelcoeffic · 2026-03-20T05:40:40Z

How do I build simulator libraries on MacOS with this????

My build setup is now completely broken stopping any work I was doing on EdgeTX.

I use this:

FLAVOR="tx16s;t12max" ./tools/build-wasm-modules.sh

You could also use the usual:

# Configure "super build"
cmake -S . -B build -DPCB=X10 -DPCBREV=TX16S -DENABLE_WASM=yes
# Compile WASM module
cmake --build build --target wasi-module

As usual, the plugins need to be copied into the Companion / Simulator app:

cp output/*.wasm "build/companion/simulator.app/Contents/MacOS/"
cp output/*.wasm "build/companion/EdgeTX Companion 3.0.app/Contents/MacOS/"

wimalopaan · 2026-04-10T09:36:49Z

Looks like the serial ports aren't working anymore???

PR #6435 ported the simulator plug-ins to WASM but did not bridge the aux serial ports across the WASM boundary, leaving AUX1/AUX2 backed by a no-op driver. Lua serialWrite() and any other code touching the aux serials was silently dropped, breaking host serial integration in Companion's simulator (#7283). Add a host bridge driver in simulib.cpp that forwards TX through new WASM imports (simuAuxSerialStart/Stop/SetBaudrate/SendBuffer) and serves RX from per-port mutex-protected queues, populated by a new simuAuxSerialReceive export. On the Companion side, register native callbacks that re-emit the existing SimulatorInterface aux serial signals so HostSerialConnector (already wired up in SimulatorMainWindow) drives the real host port, and implement WasmSimulatorInterface::receiveAuxSerialData() to push host bytes back into the firmware. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

raphaelcoeffic force-pushed the wasi branch 11 times, most recently from 1ece51b to 1a897e4 Compare July 12, 2025 10:13

raphaelcoeffic mentioned this pull request Jul 13, 2025

PoC: SDL simu and WASM target #5940

Closed

3 tasks

raphaelcoeffic force-pushed the wasi branch 5 times, most recently from f7646c4 to f748394 Compare July 21, 2025 10:17

raphaelcoeffic added the needs: rebase A git rebase on top of the latest destination branch version is required label Jul 26, 2025

pfeerick mentioned this pull request Jul 30, 2025

chore(radio): remove hardware definitions present in JSON #6437

Merged

raphaelcoeffic force-pushed the wasi branch 9 times, most recently from f792fe0 to ae5c598 Compare August 21, 2025 18:46

raphaelcoeffic removed the needs: rebase A git rebase on top of the latest destination branch version is required label Aug 21, 2025

raphaelcoeffic force-pushed the wasi branch from 0700a01 to 7f46e8c Compare August 22, 2025 05:09

raphaelcoeffic and others added 14 commits March 19, 2026 06:49

chore: bump actions versions

8d887cb

chore: replace unmaintained action ilammy/msvc-dev-cmd

a9f8f6e

chore: replace action libsdl-org/setup-sdl

c6d99c0

fix: windows path replacement in "Setup SDL2"

05b3336

fix: remove non-existent location.h from test sources

43a8539

CMake 3.21 treats missing source files as errors. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

chore: formatting

6970c3f

fix: keep COMMON_OPTIONS in build-companion.sh

4df9a6e

raphaelcoeffic force-pushed the wasi branch from 730ad0d to 4df9a6e Compare March 19, 2026 05:50

raphaelcoeffic and others added 2 commits March 19, 2026 07:00

pfeerick merged commit 04a2231 into main Mar 20, 2026
49 checks passed

pfeerick deleted the wasi branch March 20, 2026 02:19

pfeerick mentioned this pull request Mar 23, 2026

chore: compile fixes #7207

Merged

wimalopaan mentioned this pull request Apr 10, 2026

Simulaor (WASM): host serial ports aren't working anymore #7283

Open

1 task

raphaelcoeffic mentioned this pull request Apr 11, 2026

fix(simulator): restore host serial port bridge in WASM simulator #7284

Open

4 tasks

3djc mentioned this pull request Apr 13, 2026

Companion 2.12 Simulator - TX Battery Voltage "Batt" sensor not updating #7279

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1 task

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feat: WASM modules based simulation in Companion#6435

feat: WASM modules based simulation in Companion#6435
pfeerick merged 69 commits intomainfrom
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