Function gamma_lut_read

src/fl/gfx/five_bit_hd_gamma.cpp.hpp:23–25

Inlined gamma lookup with alignment enforced by aligned_ptr type. Avoids cross-TU function call overhead of gamma_2_8() in hot span loops.

// Inlined gamma lookup with alignment enforced by aligned_ptr type.
// Avoids cross-TU function call overhead of gamma_2_8() in hot span loops.
FL_ALWAYS_INLINE u16 gamma_lut_read(aligned_ptr<const u16, 64> lut, u8 idx) {
    return FL_PGM_READ_WORD_ALIGNED(&lut[idx]);
}

// Branchless scale16by8: (i * (1 + scale)) >> 8.
// Eliminates the if(scale==0) branch from the standard scale16by8.