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add adaptors::blanked

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bolero-MURAKAMI 2012-11-17 18:44:24 +09:00
parent e286c9bc6b
commit ded2da84ea
27 changed files with 350 additions and 349 deletions
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78
sprout/compost/effects/distorted.hpp Normal file
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#ifndef SPROUT_COMPOST_EFFECTS_DISTORTED_HPP
#define SPROUT_COMPOST_EFFECTS_DISTORTED_HPP
#include <sprout/config.hpp>
#include <sprout/utility/forward.hpp>
#include <sprout/compost/effects/clipped.hpp>
#include <sprout/compost/effects/changed_volume.hpp>
namespace sprout {
namespace compost {
namespace effects {
//
// distort_holder
//
template<typename T>
class distort_holder {
public:
typedef T value_type;
private:
value_type gain_;
value_type level_;
public:
distort_holder() = default;
distort_holder(distort_holder const&) = default;
SPROUT_CONSTEXPR distort_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_;
}
};
//
// distorted_forwarder
//
class distorted_forwarder {
public:
template<typename T>
SPROUT_CONSTEXPR sprout::compost::effects::distort_holder<T>
operator()(T const& gain, T const& level) {
return sprout::compost::effects::distort_holder<T>(gain, level);
}
};
//
// distorted
//
namespace {
SPROUT_STATIC_CONSTEXPR sprout::compost::effects::distorted_forwarder distorted{};
} // anonymous-namespace
//
// operator|
//
template<typename Range, typename T>
inline SPROUT_CONSTEXPR auto
operator|(Range&& lhs, sprout::compost::effects::distort_holder<T> const& rhs)
-> decltype(
sprout::forward<Range>(lhs)
| sprout::compost::effects::changed_volume(rhs.gain())
| sprout::compost::effects::clipped()
| sprout::compost::effects::changed_volume(rhs.level())
)
{
return sprout::forward<Range>(lhs)
| sprout::compost::effects::changed_volume(rhs.gain())
| sprout::compost::effects::clipped()
| sprout::compost::effects::changed_volume(rhs.level())
;
}
} // namespace effects
} // namespace compost
} // namespace sprout
#endif // #ifndef SPROUT_COMPOST_EFFECTS_DISTORTED_HPP