eval()

u8 fl::detail::gamma_constexpr::eval ( u8 x, u32 gamma_raw )

constexpr

Definition at line 174 of file gamma_lut.h.

                                                    {
    return x == 0   ? static_cast<u8>(0)
         : x == 255 ? static_cast<u8>(255)
         : static_cast<u8>(
               (pow_fp(
                   static_cast<u32>((static_cast<u64>(x) << FRAC) / 255),
                   gamma_raw
               ) * 255ULL + (SCALE >> 1)) >> FRAC
           );
}

References fl::FL_NO_EXCEPT, FRAC, pow_fp(), SCALE, and fl::x.

Referenced by fl::GammaEval< GammaRaw >::operator()().

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