diff options
| -rw-r--r-- | src/opts/Sk4px_NEON.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/src/opts/Sk4px_NEON.h b/src/opts/Sk4px_NEON.h index a8def1d418..62f1deb4ac 100644 --- a/src/opts/Sk4px_NEON.h +++ b/src/opts/Sk4px_NEON.h @@ -58,9 +58,9 @@ inline Sk4px Sk4px::Wide::addNarrowHi(const Sk16h& other) const { } inline Sk4px Sk4px::Wide::div255() const { - // Calculated as ((x+128) + ((x+128)>>8)) >> 8. - auto v = *this + Sk16h(128); - return v.addNarrowHi(v>>8); + // Calculated as (x + (x+128)>>8 +128) >> 8. The 'r' in each instruction provides each +128. + return Sk16b(vcombine_u8(vraddhn_u16(this->fLo.fVec, vrshrq_n_u16(this->fLo.fVec, 8)), + vraddhn_u16(this->fHi.fVec, vrshrq_n_u16(this->fHi.fVec, 8)))); } inline Sk4px Sk4px::alphas() const { |