toRGB()

PowerModelRGB PowerModelRGBWW::toRGB ( ) const

inlineconstexpr

Convert to RGB model (folds W/WW power back into RGB so the brightness limiter doesn't under-budget).

Issue #2558 update: the white-channel mW values are no longer dropped. They're distributed evenly across the three RGB channels, which:

• matches the brightness limiter's assumption that each RGB byte has a fixed mW cost at full drive (the limiter caps total predicted mW against a budget),
• over-estimates rather than under-estimates when only white channels are on (safer for power-limited supplies),
• accepts that a fully RGBWW-aware brightness limiter (per-channel accounting using all 5 mW values directly) is the right long-term fix — see Phase G in issue #2558.

Definition at line 134 of file power_mgt.h.

                                          {
        // Distribute white-channel mW evenly across R/G/B. Clamp to 255 (u8
        // max) on overflow — a wrapping static_cast<u8> here would make the
        // brightness limiter *less* conservative on the highest-draw configs
        // (where it most needs to be conservative). The worst-case
        // under-budget per channel from the floor division is 2 mW.
        return PowerModelRGB(
            static_cast<fl::u8>(
                (red_mW + (white_mW + warm_white_mW) / 3) > 255
                    ? 255 : (red_mW + (white_mW + warm_white_mW) / 3)),
            static_cast<fl::u8>(
                (green_mW + (white_mW + warm_white_mW) / 3) > 255
                    ? 255 : (green_mW + (white_mW + warm_white_mW) / 3)),
            static_cast<fl::u8>(
                (blue_mW + (white_mW + warm_white_mW) / 3) > 255
                    ? 255 : (blue_mW + (white_mW + warm_white_mW) / 3)),
            dark_mW,
            exponent);
    }

References blue_mW, dark_mW, exponent, green_mW, red_mW, warm_white_mW, and white_mW.

Referenced by set_power_model().

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