Method showPixels

src/platforms/wasm/clockless_channel_wasm.h:60–96

-- Show pixels This is the main entry point for the controller.

    // -- Show pixels
    //    This is the main entry point for the controller.
    virtual void showPixels(PixelController<RGB_ORDER>& pixels) override
    {
        if (!mDriver) {
            FL_WARN_EVERY(100, "No Engine");
            return;
        }
        // Wait for previous transmission to complete and release buffer
        // This prevents race conditions when show() is called faster than hardware can transmit
        u32 startTime = fl::millis();
        if (mChannelData->isInUse()) {
            FL_WARN_EVERY(100, "ClocklessController(wasm): driver should have finished transmitting by now - waiting");
            bool finished = mDriver->waitForReady();
            if (!finished) {
                FL_ERROR("ClocklessController(wasm): Engine still busy after " << fl::millis() - startTime << "ms");
                return;
            }
        }

        // Capture LED data for ActiveStripData BEFORE encoding
        // This feeds frame data to JavaScript via getFrameData()
        mCaptureData.clear();
        PixelController<RGB> pixels_rgb = pixels;
        // disableColorAdjustment() removes color correction but keeps brightness
        pixels_rgb.disableColorAdjustment();
        auto capture_iterator = pixels_rgb.as_iterator(RgbwInvalid());
        capture_iterator.writeWS2812(&mCaptureData);
        mTracker.update(mCaptureData);

        // Convert pixels to encoded byte data for channel driver
        fl::PixelIterator iterator = pixels.as_iterator(this->getRgbw());
        auto& data = mChannelData->getData();
        data.clear();
        iterator.writeWS2812(&data);

        // Enqueue for transmission (will be sent when driver->show() is called)
        mDriver->enqueue(mChannelData);
    }

    static fl::shared_ptr<IChannelDriver> getWasmEngine() FL_NOEXCEPT {
        // Phase 5c of #2428: bypass `ChannelManager` and bind directly to