writeSK9822()

template<typename CONTAINER_UIN8_T>

void fl::PixelIterator::writeSK9822 ( CONTAINER_UIN8_T * out, bool hd_gamma = false )

inline

Encode pixels in SK9822 format (zero allocation)

Parameters

out	Output buffer to write encoded bytes
hd_gamma	Enable high-definition gamma correction (per-LED brightness)

Note

Protocol: Same as APA102, including the all-ones end clock frame.

Definition at line 429 of file pixel_iterator.h.

                                                                                {
        FL_UNUSED(hd_gamma);  // only read under FASTLED_HD_COLOR_MIXING
        auto back_ins = fl::back_inserter(*out);
 
        #if FASTLED_HD_COLOR_MIXING
        if (hd_gamma) {
            // HD gamma mode: per-LED brightness
            auto pixel_range = makeScaledPixelRangeRGB(this);
            auto brightness = makeScaledBrightness(this);
            encodeSK9822_HD(pixel_range.first, pixel_range.second,
                                      brightness, back_ins);
            return;
        }
        #endif
 
        #if FASTLED_USE_GLOBAL_BRIGHTNESS == 1
        // Global brightness mode: extract from first pixel
        auto pixel_range = makeScaledPixelRangeRGB(this);
        encodeSK9822_AutoBrightness(pixel_range.first, pixel_range.second,
                                              back_ins);
        #else
        // Full brightness mode
        auto pixel_range = makeScaledPixelRangeRGB(this);
        encodeSK9822(pixel_range.first, pixel_range.second,
                               back_ins, 31);
        #endif
    }

References fl::back_inserter(), brightness, fl::encodeSK9822(), fl::encodeSK9822_AutoBrightness(), fl::encodeSK9822_HD(), fl::FL_NO_EXCEPT, FL_UNUSED, and fl::makeScaledPixelRangeRGB().

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