signedCubeQ16()

i32 fl::anonymous_namespace{oklab_q16.cpp.hpp}::signedCubeQ16

(

i32

raw

)

Definition at line 112 of file oklab_q16.cpp.hpp.

                                        {
    const i32 clamped = clampOklabQ16(raw, kOklabQ16MaxCubeRoot);
    const i64 magnitude = clamped < 0 ? -static_cast<i64>(clamped)
                                      : static_cast<i64>(clamped);
    const i64 squared = (magnitude * magnitude + 32768) >> 16;
    const i64 cubed = (squared * magnitude + 32768) >> 16;
    return clamped < 0 ? -static_cast<i32>(cubed) : static_cast<i32>(cubed);
}

References clampOklabQ16(), fl::FL_NO_EXCEPT, kOklabQ16MaxCubeRoot, and signedCubeQ16().

Referenced by signedCubeQ16().

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