SPROUT_CONSTEXPR typename std::iterator_traits<Outdirected>::value_type
calc_2(Outdirected const& x, typename Outdirected::index_type m, value_type const& delta) const {
return m >= 0 && (m + 1 < x.base().get() || x.base().get() < 0)
? delta * x[m + 1 - x.index()] + (1 - delta) * x[m - x.index()]
: 0
;
}
SPROUT_CONSTEXPR typename std::enable_if<
!Left,
typename std::iterator_traits<Outdirected>::value_type
>::type
calc(Outdirected const& x) const {
return (1 + depth_ * sprout::sin(sprout::math::two_pi<Value>() * rate_ * x.index() / samples_per_sec_ + sprout::math::pi<Value>())) * *x;
}
SPROUT_CONSTEXPR typename std::iterator_traits<Outdirected>::value_type
calc(Outdirected const& x, std::size_t i = 1) const {
return i <= repeat_
? calc_1(x, i, static_cast<typename Outdirected::index_type>(x.index() - i * delay_ * samples_per_sec_)) + calc(x, i + 1)
: 0
;
}
SPROUT_CONSTEXPR typename std::enable_if<
!Left,
typename std::iterator_traits<Outdirected>::value_type
>::type
calc(Outdirected const& x) const {
return x.index() + d_ >= 0 ? *x - x[d_]
: 0
;
}
SPROUT_CONSTEXPR typename std::iterator_traits<Outdirected>::value_type
operator()(Outdirected const& x) const {
return (1 + depth_ * sprout::math::sin(sprout::math::two_pi<Value>() * rate_ * x.index() / samples_per_sec_)) * *x;
}
SPROUT_CONSTEXPR typename std::iterator_traits<Outdirected>::value_type
calc(Outdirected const& x, value_type const& tau) const {
return calc_1(x, tau, x.index() - tau);
}
SPROUT_CONSTEXPR typename std::iterator_traits<Outdirected>::value_type
calc_1(Outdirected const& x, std::size_t i, typename Outdirected::index_type m) const {
return m >= 0 ? sprout::math::pow(attenuation_, i) * x[m - x.index()]
: 0
;
}