Method writeAPA102

src/fl/chipsets/encoders/pixel_iterator.h:223–248

    /// @note Protocol: [Start:32b 0x00][LED:[0xE0|bri5][B][G][R]]×N[End:⌈N/32⌉×32b 0xFF]
    template <typename CONTAINER_UIN8_T>
    void writeAPA102(CONTAINER_UIN8_T* out, bool hd_gamma = false) FL_NOEXCEPT {
        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_range = makeScaledBrightnessRange(this);
            encodeAPA102_HD(pixel_range.first, pixel_range.second,
                                      brightness_range.first, back_ins);
            return;
        }
        #endif

        #if FASTLED_USE_GLOBAL_BRIGHTNESS == 1
        // Global brightness mode: extract from first pixel
        auto pixel_range = makeScaledPixelRangeRGB(this);
        encodeAPA102_AutoBrightness(pixel_range.first, pixel_range.second,
                                              back_ins);
        #else
        // Full brightness mode
        auto pixel_range = makeScaledPixelRangeRGB(this);
        encodeAPA102(pixel_range.first, pixel_range.second,
                               back_ins, 31);
        #endif
    }

    /// @brief Encode pixels in SK9822 format (zero allocation)
    /// @param out Output buffer to write encoded bytes