draw()

void fl::WaveFx::draw ( DrawContext context )

inlineoverridevirtual

Render wave to LED array.

Parameters

context

Draw context containing timestamp and LED buffer

Updates the wave simulation (if auto-update enabled) and maps wave values to LED colors using the current color mapper.

Implements fl::Fx.

Definition at line 370 of file wave.h.

                                            {
        // Update the wave simulation.
        if (mAutoUpdates) {
            mWaveSim.update();
        }
        // Map the wave values to the LEDs.
        mCrgbMap->mapWaveToLEDs(mXyMap, mWaveSim, context.leds);
        // #3122 A4 — post-process output blur as a cheaper alternative
        // to SuperSample. Skipped entirely when amount == 0.
        if (mOutputBlurAmount > 0) {
            const fl::u32 w = mWaveSim.getWidth();
            const fl::u32 h = mWaveSim.getHeight();
            for (fl::u8 pass = 0; pass < mOutputBlurPasses; ++pass) {
                fl::blur2d(context.leds, static_cast<fl::u8>(w),
                           static_cast<fl::u8>(h), mOutputBlurAmount,
                           mXyMap);
            }
        }
    }

References fl::blur2d(), fl::DrawContext::leds, mAutoUpdates, mCrgbMap, mOutputBlurAmount, mOutputBlurPasses, mWaveSim, and fl::Fx2d::mXyMap.

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