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add some compost effects.

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bolero-MURAKAMI 2012-11-09 22:33:11 +09:00
parent d01ee064e2
commit c7e6be98bb
20 changed files with 1815 additions and 6 deletions
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126
sprout/compost/effects/compress.hpp Normal file
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#ifndef SPROUT_COMPOST_EFFECTS_COMPRESS_HPP
#define SPROUT_COMPOST_EFFECTS_COMPRESS_HPP
#include <sprout/config.hpp>
#include <sprout/utility/forward.hpp>
#include <sprout/range/adaptor/transformed.hpp>
namespace sprout {
namespace compost {
namespace detail {
template<typename Value, typename T>
SPROUT_CONSTEXPR T
compress_value(T const& x, Value const& threshold, Value const& ratio, Value const& gain) {
return (x > threshold ? threshold + (x - threshold) * ratio
: x < -threshold ? -threshold + (x + threshold) * ratio
: x
) * gain
;
}
} // namespace detail
//
// compress_value
//
template<typename Value, typename T = void>
struct compress_value {
public:
typedef Value value_type;
typedef T argument_type;
typedef T result_type;
private:
value_type threshold_;
value_type ratio_;
value_type gain_;
public:
SPROUT_CONSTEXPR compress_value(Value const& threshold, Value const& ratio)
: threshold_(threshold), ratio_(ratio), gain_(1 / (threshold + (1 - threshold) * ratio))
{}
SPROUT_CONSTEXPR result_type
operator()(T const& x) const {
return sprout::compost::detail::compress_value(x, threshold_, ratio_, gain_);
}
};
template<typename Value>
struct compress_value<Value, void> {
public:
typedef Value value_type;
private:
value_type threshold_;
value_type ratio_;
value_type gain_;
public:
SPROUT_CONSTEXPR compress_value(Value const& threshold, Value const& ratio)
: threshold_(threshold), ratio_(ratio), gain_(1 / (threshold + (1 - threshold) * ratio))
{}
template<typename T>
SPROUT_CONSTEXPR T
operator()(T const& x) const {
return sprout::compost::detail::compress_value(x, threshold_, ratio_, gain_);
}
};
namespace effects {
//
// compress_holder
//
template<typename T>
class compress_holder {
public:
typedef T value_type;
private:
value_type threshold_;
value_type ratio_;
public:
compress_holder() = default;
compress_holder(compress_holder const&) = default;
SPROUT_CONSTEXPR compress_holder(value_type const& threshold, value_type const& ratio)
: threshold_(threshold), ratio_(ratio)
{}
SPROUT_CONSTEXPR value_type const& threshold() const {
return threshold_;
}
SPROUT_CONSTEXPR value_type const& ratio() const {
return ratio_;
}
};
//
// compressed_forwarder
//
class compressed_forwarder {
public:
template<typename T>
SPROUT_CONSTEXPR sprout::compost::effects::compress_holder<T>
operator()(T const& threshold, T const& ratio) {
return sprout::compost::effects::compress_holder<T>(threshold, ratio);
}
};
//
// compressed
//
namespace {
SPROUT_STATIC_CONSTEXPR sprout::compost::effects::compressed_forwarder compressed{};
} // anonymous-namespace
//
// operator|
//
template<typename Range, typename T>
inline SPROUT_CONSTEXPR auto
operator|(Range&& lhs, sprout::compost::effects::compress_holder<T> const& rhs)
-> decltype(
sprout::forward<Range>(lhs)
| sprout::adaptors::transformed(sprout::compost::compress_value<T>(rhs.threshold(), rhs.ratio()))
)
{
return sprout::forward<Range>(lhs)
| sprout::adaptors::transformed(sprout::compost::compress_value<T>(rhs.threshold(), rhs.ratio()))
;
}
} // namespace effects
} // namespace compost
} // namespace sprout
#endif // #ifndef SPROUT_COMPOST_EFFECTS_COMPRESS_HPP

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#ifndef SPROUT_COMPOST_EFFECTS_FUZZ_HPP
#define SPROUT_COMPOST_EFFECTS_FUZZ_HPP
#include <sprout/config.hpp>
#include <sprout/utility/forward.hpp>
#include <sprout/range/adaptor/transformed.hpp>
#include <sprout/compost/effects/rectify.hpp>
#include <sprout/compost/effects/distort.hpp>
namespace sprout {
namespace compost {
namespace effects {
//
// fuzz_holder
//
template<typename T>
class fuzz_holder {
public:
typedef T value_type;
private:
value_type gain_;
value_type level_;
public:
fuzz_holder() = default;
fuzz_holder(fuzz_holder const&) = default;
SPROUT_CONSTEXPR fuzz_holder(value_type const& gain, value_type const& level)
: gain_(gain) , level_(level)
{}
SPROUT_CONSTEXPR value_type const& gain() const {
return gain_;
}
SPROUT_CONSTEXPR value_type const& level() const {
return level_;
}
};
//
// fuzzed_forwarder
//
class fuzzed_forwarder {
public:
template<typename T>
SPROUT_CONSTEXPR sprout::compost::effects::fuzz_holder<T>
operator()(T const& gain, T const& level) {
return sprout::compost::effects::fuzz_holder<T>(gain, level);
}
};
//
// fuzzed
//
namespace {
SPROUT_STATIC_CONSTEXPR sprout::compost::effects::fuzzed_forwarder fuzzed{};
} // anonymous-namespace
//
// operator|
//
template<typename Range, typename T>
inline SPROUT_CONSTEXPR auto
operator|(Range&& lhs, sprout::compost::effects::fuzz_holder<T> const& rhs)
-> decltype(
sprout::forward<Range>(lhs)
| sprout::compost::effects::rectified
| sprout::compost::effects::distorted(rhs.gain(), rhs.level())
)
{
return sprout::forward<Range>(lhs)
| sprout::compost::effects::rectified
| sprout::compost::effects::distorted(rhs.gain(), rhs.level())
;
}
} // namespace effects
} // namespace compost
} // namespace sprout
#endif // #ifndef SPROUT_COMPOST_EFFECTS_FUZZ_HPP

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#ifndef SPROUT_COMPOST_EFFECTS_NOISE_GATE_HPP
#define SPROUT_COMPOST_EFFECTS_NOISE_GATE_HPP
#include <sprout/config.hpp>
#include <sprout/utility/forward.hpp>
#include <sprout/range/adaptor/transformed.hpp>
namespace sprout {
namespace compost {
namespace detail {
template<typename Value, typename T>
SPROUT_CONSTEXPR T
noise_gate_value(T const& x, Value const& threshold) {
return x <= threshold && x >= -threshold ? 0
: x
;
}
} // namespace detail
//
// noise_gate_value
//
template<typename Value, typename T = void>
struct noise_gate_value {
public:
typedef Value value_type;
typedef T argument_type;
typedef T result_type;
private:
value_type threshold_;
public:
explicit SPROUT_CONSTEXPR noise_gate_value(Value const& threshold)
: threshold_(threshold)
{}
SPROUT_CONSTEXPR result_type
operator()(T const& x) const {
return sprout::compost::detail::noise_gate_value(x, threshold_);
}
};
template<typename Value>
struct noise_gate_value<Value, void> {
public:
typedef Value value_type;
private:
value_type threshold_;
public:
explicit SPROUT_CONSTEXPR noise_gate_value(Value const& threshold)
: threshold_(threshold)
{}
template<typename T>
SPROUT_CONSTEXPR T
operator()(T const& x) const {
return sprout::compost::detail::noise_gate_value(x, threshold_);
}
};
namespace effects {
//
// noise_gate_holder
//
template<typename T>
class noise_gate_holder {
public:
typedef T value_type;
private:
value_type threshold_;
public:
noise_gate_holder() = default;
noise_gate_holder(noise_gate_holder const&) = default;
explicit SPROUT_CONSTEXPR noise_gate_holder(value_type const& threshold)
: threshold_(threshold)
{}
SPROUT_CONSTEXPR value_type const& threshold() const {
return threshold_;
}
};
//
// noise_gated_forwarder
//
class noise_gated_forwarder {
public:
template<typename T>
SPROUT_CONSTEXPR sprout::compost::effects::noise_gate_holder<T>
operator()(T const& threshold) {
return sprout::compost::effects::noise_gate_holder<T>(threshold);
}
};
//
// noise_gated
//
namespace {
SPROUT_STATIC_CONSTEXPR sprout::compost::effects::noise_gated_forwarder noise_gated{};
} // anonymous-namespace
//
// operator|
//
template<typename Range, typename T>
inline SPROUT_CONSTEXPR auto
operator|(Range&& lhs, sprout::compost::effects::noise_gate_holder<T> const& rhs)
-> decltype(
sprout::forward<Range>(lhs)
| sprout::adaptors::transformed(sprout::compost::noise_gate_value<T>(rhs.threshold()))
)
{
return sprout::forward<Range>(lhs)
| sprout::adaptors::transformed(sprout::compost::noise_gate_value<T>(rhs.threshold()))
;
}
} // namespace effects
} // namespace compost
} // namespace sprout
#endif // #ifndef SPROUT_COMPOST_EFFECTS_NOISE_GATE_HPP

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#ifndef SPROUT_COMPOST_EFFECTS_OVERDRIVE_HPP
#define SPROUT_COMPOST_EFFECTS_OVERDRIVE_HPP
#include <sprout/config.hpp>
#include <sprout/utility/forward.hpp>
#include <sprout/math/constants.hpp>
#include <sprout/math/atan.hpp>
#include <sprout/range/adaptor/transformed.hpp>
#include <sprout/compost/effects/change_volume.hpp>
namespace sprout {
namespace compost {
//
// overdrive_clip_value
//
template<typename T = void>
struct overdrive_clip_value {
public:
typedef T argument_type;
typedef T result_type;
public:
SPROUT_CONSTEXPR T
operator()(T const& x) const {
return x >= 0 ? sprout::math::atan(x) / sprout::math::half_pi<T>()
: sprout::math::atan(x) / sprout::math::half_pi<T>() / 10
;
}
};
template<>
struct overdrive_clip_value<void> {
public:
template<typename T>
SPROUT_CONSTEXPR T
operator()(T const& x) const {
return sprout::compost::overdrive_clip_value<T>()(x);
}
};
namespace effects {
//
// overdrive_holder
//
template<typename T>
class overdrive_holder {
public:
typedef T value_type;
private:
value_type gain_;
value_type level_;
public:
overdrive_holder() = default;
overdrive_holder(overdrive_holder const&) = default;
SPROUT_CONSTEXPR overdrive_holder(value_type const& gain, value_type const& level)
: gain_(gain) , level_(level)
{}
SPROUT_CONSTEXPR value_type const& gain() const {
return gain_;
}
SPROUT_CONSTEXPR value_type const& level() const {
return level_;
}
};
//
// overdriven_forwarder
//
class overdriven_forwarder {
public:
template<typename T>
SPROUT_CONSTEXPR sprout::compost::effects::overdrive_holder<T>
operator()(T const& gain, T const& level) {
return sprout::compost::effects::overdrive_holder<T>(gain, level);
}
};
//
// overdriven
//
namespace {
SPROUT_STATIC_CONSTEXPR sprout::compost::effects::overdriven_forwarder overdriven{};
} // anonymous-namespace
//
// operator|
//
template<typename Range, typename T>
inline SPROUT_CONSTEXPR auto
operator|(Range&& lhs, sprout::compost::effects::overdrive_holder<T> const& rhs)
-> decltype(
sprout::forward<Range>(lhs)
| sprout::compost::effects::changed_volume(rhs.gain())
| sprout::adaptors::transformed(sprout::compost::overdrive_clip_value<>())
| sprout::compost::effects::changed_volume(rhs.level())
)
{
return sprout::forward<Range>(lhs)
| sprout::compost::effects::changed_volume(rhs.gain())
| sprout::adaptors::transformed(sprout::compost::overdrive_clip_value<>())
| sprout::compost::effects::changed_volume(rhs.level())
;
}
} // namespace effects
} // namespace compost
} // namespace sprout
#endif // #ifndef SPROUT_COMPOST_EFFECTS_OVERDRIVE_HPP

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#ifndef SPROUT_COMPOST_EFFECTS_RECTIFY_HPP
#define SPROUT_COMPOST_EFFECTS_RECTIFY_HPP
#include <sprout/config.hpp>
#include <sprout/utility/forward.hpp>
#include <sprout/range/adaptor/transformed.hpp>
namespace sprout {
namespace compost {
//
// rectify_value
//
template<typename T = void>
struct rectify_value {
public:
typedef T argument_type;
typedef T result_type;
public:
SPROUT_CONSTEXPR T
operator()(T const& x) const {
return x < 0 ? -x : x;
}
};
template<>
struct rectify_value<void> {
public:
template<typename T>
SPROUT_CONSTEXPR T
operator()(T const& x) const {
return sprout::compost::rectify_value<T>()(x);
}
};
namespace effects {
//
// rectified_forwarder
//
class rectified_forwarder {};
//
// rectified
//
namespace {
SPROUT_STATIC_CONSTEXPR sprout::compost::effects::rectified_forwarder rectified{};
} // anonymous-namespace
//
// operator|
//
template<typename Range>
inline SPROUT_CONSTEXPR auto
operator|(Range&& lhs, sprout::compost::effects::rectified_forwarder const& rhs)
-> decltype(
sprout::forward<Range>(lhs)
| sprout::adaptors::transformed(sprout::compost::rectify_value<>())
)
{
return sprout::forward<Range>(lhs)
| sprout::adaptors::transformed(sprout::compost::rectify_value<>())
;
}
} // namespace effects
} // namespace compost
} // namespace sprout
#endif // #ifndef SPROUT_COMPOST_EFFECTS_RECTIFY_HPP

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#ifndef SPROUT_COMPOST_EFFECTS_REVERB_HPP
#define SPROUT_COMPOST_EFFECTS_REVERB_HPP
#include <cstddef>
#include <iterator>
#include <sprout/config.hpp>
#include <sprout/utility/forward.hpp>
#include <sprout/math/constants.hpp>
#include <sprout/math/pow.hpp>
#include <sprout/range/adaptor/transformed.hpp>
#include <sprout/range/adaptor/outdirected.hpp>
#include <sprout/range/adaptor/indexed.hpp>
namespace sprout {
namespace compost {
//
// reverb_outdirected_value
//
template<typename Value, typename IntType>
struct reverb_outdirected_value {
public:
typedef Value value_type;
typedef IntType int_type;
private:
value_type attenuation_;
value_type delay_;
std::size_t repeat_;
int_type samples_per_sec_;
private:
template<typename Outdirected>
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
;
}
template<typename Outdirected>
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
;
}
public:
SPROUT_CONSTEXPR reverb_outdirected_value(
value_type const& attenuation, value_type const& delay,
std::size_t repeat = 2, int_type samples_per_sec = 44100
)
: attenuation_(attenuation), delay_(delay), repeat_(repeat), samples_per_sec_(samples_per_sec)
{}
template<typename Outdirected>
SPROUT_CONSTEXPR typename std::iterator_traits<Outdirected>::value_type
operator()(Outdirected const& x) const {
return *x + calc(x);
}
};
namespace effects {
//
// reverb_holder
//
template<typename T, typename IntType = int>
class reverb_holder {
public:
typedef T value_type;
typedef IntType int_type;
private:
value_type attenuation_;
value_type delay_;
std::size_t repeat_;
int_type samples_per_sec_;
public:
reverb_holder() = default;
reverb_holder(reverb_holder const&) = default;
SPROUT_CONSTEXPR reverb_holder(
value_type const& attenuation, value_type const& delay,
std::size_t repeat = 2, int_type samples_per_sec = 44100
)
: attenuation_(attenuation), delay_(delay), repeat_(repeat), samples_per_sec_(samples_per_sec)
{}
SPROUT_CONSTEXPR value_type const& attenuation() const {
return attenuation_;
}
SPROUT_CONSTEXPR value_type const& delay() const {
return delay_;
}
SPROUT_CONSTEXPR std::size_t const& repeat() const {
return repeat_;
}
SPROUT_CONSTEXPR int_type const& samples_per_sec() const {
return samples_per_sec_;
}
};
//
// reverbed_forwarder
//
class reverbed_forwarder {
public:
template<typename T, typename IntType>
SPROUT_CONSTEXPR sprout::compost::effects::reverb_holder<T, IntType>
operator()(T const& attenuation, T const& delay, std::size_t repeat, IntType samples_per_sec) {
return sprout::compost::effects::reverb_holder<T, IntType>(attenuation, delay, repeat, samples_per_sec);
}
template<typename T>
SPROUT_CONSTEXPR sprout::compost::effects::reverb_holder<T>
operator()(T const& attenuation, T const& delay, std::size_t repeat = 2) {
return sprout::compost::effects::reverb_holder<T>(attenuation, delay, repeat);
}
};
//
// reverbed
//
namespace {
SPROUT_STATIC_CONSTEXPR sprout::compost::effects::reverbed_forwarder reverbed{};
} // anonymous-namespace
//
// operator|
//
template<typename Range, typename T, typename IntType>
inline SPROUT_CONSTEXPR auto
operator|(Range&& lhs, sprout::compost::effects::reverb_holder<T, IntType> const& rhs)
-> decltype(
sprout::forward<Range>(lhs)
| sprout::adaptors::indexed | sprout::adaptors::outdirected
| sprout::adaptors::transformed(
sprout::compost::reverb_outdirected_value<T, IntType>(
rhs.attenuation(), rhs.delay(), rhs.repeat(), rhs.samples_per_sec()
)
)
)
{
return sprout::forward<Range>(lhs)
| sprout::adaptors::indexed | sprout::adaptors::outdirected
| sprout::adaptors::transformed(
sprout::compost::reverb_outdirected_value<T, IntType>(
rhs.attenuation(), rhs.delay(), rhs.repeat(), rhs.samples_per_sec()
)
)
;
}
} // namespace effects
} // namespace compost
} // namespace sprout
#endif // #ifndef SPROUT_COMPOST_EFFECTS_REVERB_HPP

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#ifndef SPROUT_COMPOST_EFFECTS_TREMOLO_HPP
#define SPROUT_COMPOST_EFFECTS_TREMOLO_HPP
#include <iterator>
#include <sprout/config.hpp>
#include <sprout/utility/forward.hpp>
#include <sprout/math/constants.hpp>
#include <sprout/math/sin.hpp>
#include <sprout/range/adaptor/transformed.hpp>
#include <sprout/range/adaptor/outdirected.hpp>
#include <sprout/range/adaptor/indexed.hpp>
namespace sprout {
namespace compost {
//
// tremolo_outdirected_value
//
template<typename Value, typename IntType>
struct tremolo_outdirected_value {
public:
typedef Value value_type;
typedef IntType int_type;
private:
value_type depth_;
value_type rate_;
int_type samples_per_sec_;
public:
SPROUT_CONSTEXPR tremolo_outdirected_value(value_type const& depth, value_type const& rate, int_type samples_per_sec = 44100)
: depth_(depth), rate_(rate), samples_per_sec_(samples_per_sec)
{}
template<typename Outdirected>
SPROUT_CONSTEXPR typename std::iterator_traits<Outdirected>::value_type
operator()(Outdirected const& x) const {
return (1 + depth_ * sprout::math::sin(2 * sprout::math::pi<Value>() * rate_ * x.index() / samples_per_sec_)) * *x;
}
};
namespace effects {
//
// tremolo_holder
//
template<typename T, typename IntType = int>
class tremolo_holder {
public:
typedef T value_type;
typedef IntType int_type;
private:
value_type depth_;
value_type rate_;
int_type samples_per_sec_;
public:
tremolo_holder() = default;
tremolo_holder(tremolo_holder const&) = default;
SPROUT_CONSTEXPR tremolo_holder(value_type const& depth, value_type const& rate, int_type samples_per_sec = 44100)
: depth_(depth), rate_(rate), samples_per_sec_(samples_per_sec)
{}
SPROUT_CONSTEXPR value_type const& depth() const {
return depth_;
}
SPROUT_CONSTEXPR value_type const& rate() const {
return rate_;
}
SPROUT_CONSTEXPR int_type const& samples_per_sec() const {
return samples_per_sec_;
}
};
//
// tremolo_forwarder
//
class tremolo_forwarder {
public:
template<typename T, typename IntType>
SPROUT_CONSTEXPR sprout::compost::effects::tremolo_holder<T, IntType>
operator()(T const& depth, T const& rate, IntType samples_per_sec) {
return sprout::compost::effects::tremolo_holder<T, IntType>(depth, rate, samples_per_sec);
}
template<typename T>
SPROUT_CONSTEXPR sprout::compost::effects::tremolo_holder<T>
operator()(T const& depth, T const& rate) {
return sprout::compost::effects::tremolo_holder<T>(depth, rate);
}
};
//
// tremolo
//
namespace {
SPROUT_STATIC_CONSTEXPR sprout::compost::effects::tremolo_forwarder tremolo{};
} // anonymous-namespace
//
// operator|
//
template<typename Range, typename T, typename IntType>
inline SPROUT_CONSTEXPR auto
operator|(Range&& lhs, sprout::compost::effects::tremolo_holder<T, IntType> const& rhs)
-> decltype(
sprout::forward<Range>(lhs)
| sprout::adaptors::indexed | sprout::adaptors::outdirected
| sprout::adaptors::transformed(
sprout::compost::tremolo_outdirected_value<T, IntType>(rhs.depth(), rhs.rate(), rhs.samples_per_sec())
)
)
{
return sprout::forward<Range>(lhs)
| sprout::adaptors::indexed | sprout::adaptors::outdirected
| sprout::adaptors::transformed(
sprout::compost::tremolo_outdirected_value<T, IntType>(rhs.depth(), rhs.rate(), rhs.samples_per_sec())
)
;
}
} // namespace effects
} // namespace compost
} // namespace sprout
#endif // #ifndef SPROUT_COMPOST_EFFECTS_TREMOLO_HPP

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#ifndef SPROUT_COMPOST_EFFECTS_VIBRATO_HPP
#define SPROUT_COMPOST_EFFECTS_VIBRATO_HPP
#include <iterator>
#include <sprout/config.hpp>
#include <sprout/utility/forward.hpp>
#include <sprout/container/functions.hpp>
#include <sprout/math/constants.hpp>
#include <sprout/math/sin.hpp>
#include <sprout/range/adaptor/transformed.hpp>
#include <sprout/range/adaptor/outdirected.hpp>
#include <sprout/range/adaptor/indexed.hpp>
#include <sprout/range/adaptor/valued.hpp>
namespace sprout {
namespace compost {
//
// vibrato_outdirected_value
//
template<typename Value, typename IntType>
struct vibrato_outdirected_value {
public:
typedef Value value_type;
typedef IntType int_type;
private:
value_type d_;
value_type depth_;
value_type rate_;
int_type samples_per_sec_;
private:
template<typename Outdirected>
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()]
: *x
;
}
template<typename Outdirected>
SPROUT_CONSTEXPR typename std::iterator_traits<Outdirected>::value_type
calc_1(Outdirected const& x, value_type const& tau, value_type const& t) const {
return calc_2(x, static_cast<typename Outdirected::index_type>(t), t - static_cast<typename Outdirected::index_type>(t));
}
template<typename Outdirected>
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);
}
public:
SPROUT_CONSTEXPR vibrato_outdirected_value(
value_type const& d, value_type const& depth, value_type const& rate,
int_type samples_per_sec = 44100
)
: d_(d), depth_(depth), rate_(rate), samples_per_sec_(samples_per_sec)
{}
template<typename Outdirected>
SPROUT_CONSTEXPR typename std::iterator_traits<Outdirected>::value_type
operator()(Outdirected const& x) const {
return calc(x, d_ + depth_ * sprout::math::sin(2 * sprout::math::pi<Value>() * rate_ * x.index() / samples_per_sec_));
}
};
namespace effects {
//
// vibrato_holder
//
template<typename T, typename IntType = int>
class vibrato_holder {
public:
typedef T value_type;
typedef IntType int_type;
private:
value_type d_;
value_type depth_;
value_type rate_;
int_type samples_per_sec_;
public:
vibrato_holder() = default;
vibrato_holder(vibrato_holder const&) = default;
SPROUT_CONSTEXPR vibrato_holder(
value_type const& d, value_type const& depth, value_type const& rate,
int_type samples_per_sec = 44100
)
: d_(d), depth_(depth), rate_(rate), samples_per_sec_(samples_per_sec)
{}
SPROUT_CONSTEXPR value_type const& d() const {
return d_;
}
SPROUT_CONSTEXPR value_type const& depth() const {
return depth_;
}
SPROUT_CONSTEXPR value_type const& rate() const {
return rate_;
}
SPROUT_CONSTEXPR int_type const& samples_per_sec() const {
return samples_per_sec_;
}
};
//
// vibrato_forwarder
//
class vibrato_forwarder {
public:
template<typename T, typename IntType>
SPROUT_CONSTEXPR sprout::compost::effects::vibrato_holder<T, IntType>
operator()(T const& d, T const& depth, T const& rate, IntType samples_per_sec) {
return sprout::compost::effects::vibrato_holder<T, IntType>(d, depth, rate, samples_per_sec);
}
template<typename T>
SPROUT_CONSTEXPR sprout::compost::effects::vibrato_holder<T>
operator()(T const& d, T const& depth, T const& rate) {
return sprout::compost::effects::vibrato_holder<T>(d, depth, rate);
}
};
//
// vibrato
//
namespace {
SPROUT_STATIC_CONSTEXPR sprout::compost::effects::vibrato_forwarder vibrato{};
} // anonymous-namespace
//
// operator|
//
template<typename Range, typename T, typename IntType>
inline SPROUT_CONSTEXPR auto
operator|(Range&& lhs, sprout::compost::effects::vibrato_holder<T, IntType> const& rhs)
-> decltype(
sprout::forward<Range>(lhs)
| sprout::adaptors::valued(sprout::size(sprout::forward<Range>(lhs)))
| sprout::adaptors::indexed | sprout::adaptors::outdirected
| sprout::adaptors::transformed(
sprout::compost::vibrato_outdirected_value<T, IntType>(
rhs.d(), rhs.depth(), rhs.rate(), rhs.samples_per_sec()
)
)
)
{
return sprout::forward<Range>(lhs)
| sprout::adaptors::valued(sprout::size(sprout::forward<Range>(lhs)))
| sprout::adaptors::indexed | sprout::adaptors::outdirected
| sprout::adaptors::transformed(
sprout::compost::vibrato_outdirected_value<T, IntType>(
rhs.d(), rhs.depth(), rhs.rate(), rhs.samples_per_sec()
)
)
;
}
} // namespace effects
} // namespace compost
} // namespace sprout
#endif // #ifndef SPROUT_COMPOST_EFFECTS_VIBRATO_HPP