advance()

void fl::detail::ScaledPixelIteratorBrightness::advance ( )

inlineprivate

Advance to next brightness value (or mark as end)

Definition at line 455 of file pixel_iterator.h.

                                                               {
    if (!mPixels) {
        mHasValue = false;
        return;
    }
 
    if (mPixels->has(1)) {
        #if FASTLED_HD_COLOR_MIXING
        u8 r, g, b, brightness;
        mPixels->loadRGBScaleAndBrightness(&r, &g, &b, &brightness);
        mCurrent = brightness;
        #else
        // Fallback: compute brightness from max RGB component
        u8 r, g, b;
        mPixels->loadAndScaleRGB(&r, &g, &b);
        // Use sequential comparisons to avoid nested fl::max (helps AVR register allocation)
        u8 max_rg = (r > g) ? r : g;
        mCurrent = (max_rg > b) ? max_rg : b;
        #endif
        mPixels->stepDithering();
        mPixels->advanceData();
        mHasValue = true;
    } else {
        mHasValue = false;
    }
}

References brightness, FL_NOEXCEPT, mCurrent, mHasValue, and mPixels.