IntraPrediction.cpp

    if( iScaleShiftA2 < 0 )
    {
      iScaleShiftA2 = 0;
    }

    int iScaleShiftA = iScaleShiftA2 + iAccuracyShift - iShift - iScaleShiftA1;

    a2s = a2 >> iScaleShiftA2;

    a1s = a1 >> iScaleShiftA1;

    if( a2s >= 32 )
    {
      uint32_t a2t = m_auShiftLM[a2s - 32];
      a = a1s * a2t;
    }
    else
    {
      a = 0;
    }

    if( iScaleShiftA < 0 )
    {
      a = a << -iScaleShiftA;
    }
    else
    {
      a = a >> iScaleShiftA;
    }
    a = Clip3( -( 1 << ( 15 - iB ) ), ( 1 << ( 15 - iB ) ) - 1, a );
    a = a << iB;

    int16_t n = 0;
    if( a != 0 )
    {
      n = GetFloorLog2( abs( a ) + ( ( a < 0 ? -1 : 1 ) - 1 ) / 2 ) - 5;
    }

    iShift = ( iShift + iB ) - n;
    a = a >> n;

    b = avgY - ( ( a * avgX ) >> iShift );
  }
}
#endif

//! \}