mirror of
https://github.com/bolero-MURAKAMI/Sprout.git
synced 2024-11-14 10:39:05 +00:00
82 lines
2.6 KiB
C++
82 lines
2.6 KiB
C++
|
#ifndef SPROUT_NUMERIC_DFT_FIXED_PHASE_SPECTRUM_HPP
|
||
|
|
#define SPROUT_NUMERIC_DFT_FIXED_PHASE_SPECTRUM_HPP
|
||
|
|
|
||
|
|
#include <sprout/config.hpp>
|
||
|
|
#include <sprout/index_tuple.hpp>
|
||
|
|
#include <sprout/container/traits.hpp>
|
||
|
|
#include <sprout/container/functions.hpp>
|
||
|
|
#include <sprout/iterator/operation.hpp>
|
||
|
|
#include <sprout/algorithm/fixed/result_of.hpp>
|
||
|
|
#include <sprout/complex.hpp>
|
||
|
|
#include <sprout/math/atan2.hpp>
|
||
|
|
#include <sprout/math/llround.hpp>
|
||
|
|
#include HDR_ITERATOR_SSCRISK_CEL_OR_SPROUT
|
||
|
|
|
||
|
|
namespace sprout {
|
||
|
|
namespace fixed {
|
||
|
|
namespace detail {
|
||
|
|
template<typename InputIterator, typename Result, sprout::index_t... Indexes>
|
||
|
|
inline SPROUT_CONSTEXPR typename sprout::fixed::result_of::algorithm<Result>::type
|
||
|
|
phase_spectrum_impl(
|
||
|
|
InputIterator first,
|
||
|
|
InputIterator last,
|
||
|
|
Result const& result,
|
||
|
|
sprout::index_tuple<Indexes...>,
|
||
|
|
typename sprout::container_traits<Result>::difference_type offset,
|
||
|
|
typename sprout::container_traits<Result>::size_type size,
|
||
|
|
typename sprout::container_traits<Result>::size_type input_size
|
||
|
|
)
|
||
|
|
{
|
||
|
|
using sprout::real;
|
||
|
|
using sprout::imag;
|
||
|
|
return sprout::remake<Result>(
|
||
|
|
result,
|
||
|
|
size,
|
||
|
|
(Indexes >= offset && Indexes < offset + size && Indexes < offset + input_size
|
||
|
|
? sprout::atan2(
|
||
|
|
sprout::llround(imag(*sprout::next(first, Indexes))),
|
||
|
|
sprout::llround(real(*sprout::next(first, Indexes)))
|
||
|
|
)
|
||
|
|
: *sprout::next(sprout::internal_begin(result), Indexes)
|
||
|
|
)...
|
||
|
|
);
|
||
|
|
}
|
||
|
|
template<typename InputIterator, typename Result>
|
||
|
|
inline SPROUT_CONSTEXPR typename sprout::fixed::result_of::algorithm<Result>::type
|
||
|
|
phase_spectrum(
|
||
|
|
InputIterator first,
|
||
|
|
InputIterator last,
|
||
|
|
Result const& result
|
||
|
|
)
|
||
|
|
{
|
||
|
|
return sprout::fixed::detail::phase_spectrum_impl(
|
||
|
|
first,
|
||
|
|
last,
|
||
|
|
result,
|
||
|
|
sprout::index_range<0, sprout::container_traits<Result>::static_size>::make(),
|
||
|
|
sprout::internal_begin_offset(result),
|
||
|
|
sprout::size(result),
|
||
|
|
NS_SSCRISK_CEL_OR_SPROUT::distance(first, last)
|
||
|
|
);
|
||
|
|
}
|
||
|
|
} // namespace detail
|
||
|
|
//
|
||
|
|
// phase_spectrum
|
||
|
|
//
|
||
|
|
template<typename InputIterator, typename Result>
|
||
|
|
inline SPROUT_CONSTEXPR typename sprout::fixed::result_of::algorithm<Result>::type
|
||
|
|
phase_spectrum(
|
||
|
|
InputIterator first,
|
||
|
|
InputIterator last,
|
||
|
|
Result const& result
|
||
|
|
)
|
||
|
|
{
|
||
|
|
return sprout::fixed::detail::phase_spectrum(first, last, result);
|
||
|
|
}
|
||
|
|
} // namespace fixed
|
||
|
|
|
||
|
|
using sprout::fixed::phase_spectrum;
|
||
|
|
} // namespace sprout
|
||
|
|
|
||
|
|
#endif // #ifndef SPROUT_NUMERIC_DFT_FIXED_PHASE_SPECTRUM_HPP
|