123 lines
2.3 KiB
C++
123 lines
2.3 KiB
C++
|
// Copyright (C) 2013 National ICT Australia (NICTA)
|
||
|
|
//
|
||
|
|
// This Source Code Form is subject to the terms of the Mozilla Public
|
||
|
|
// License, v. 2.0. If a copy of the MPL was not distributed with this
|
||
|
|
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
|
||
|
|
// -------------------------------------------------------------------
|
||
|
|
//
|
||
|
|
// Written by Conrad Sanderson - http://conradsanderson.id.au
|
||
|
|
|
||
|
|
|
||
|
|
//! \addtogroup fn_fft
|
||
|
|
//! @{
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
// 1D FFT & 1D IFFT
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
template<typename T1>
|
||
|
|
inline
|
||
|
|
typename
|
||
|
|
enable_if2
|
||
|
|
<
|
||
|
|
(is_arma_type<T1>::value && is_real<typename T1::elem_type>::value),
|
||
|
|
const mtOp<std::complex<typename T1::pod_type>, T1, op_fft_real>
|
||
|
|
>::result
|
||
|
|
fft(const T1& A)
|
||
|
|
{
|
||
|
|
arma_extra_debug_sigprint();
|
||
|
|
|
||
|
|
return mtOp<std::complex<typename T1::pod_type>, T1, op_fft_real>(A, uword(0), uword(1));
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
template<typename T1>
|
||
|
|
inline
|
||
|
|
typename
|
||
|
|
enable_if2
|
||
|
|
<
|
||
|
|
(is_arma_type<T1>::value && is_real<typename T1::elem_type>::value),
|
||
|
|
const mtOp<std::complex<typename T1::pod_type>, T1, op_fft_real>
|
||
|
|
>::result
|
||
|
|
fft(const T1& A, const uword N)
|
||
|
|
{
|
||
|
|
arma_extra_debug_sigprint();
|
||
|
|
|
||
|
|
return mtOp<std::complex<typename T1::pod_type>, T1, op_fft_real>(A, N, uword(0));
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
template<typename T1>
|
||
|
|
inline
|
||
|
|
typename
|
||
|
|
enable_if2
|
||
|
|
<
|
||
|
|
(is_arma_type<T1>::value && is_complex_strict<typename T1::elem_type>::value),
|
||
|
|
const Op<T1, op_fft_cx>
|
||
|
|
>::result
|
||
|
|
fft(const T1& A)
|
||
|
|
{
|
||
|
|
arma_extra_debug_sigprint();
|
||
|
|
|
||
|
|
return Op<T1, op_fft_cx>(A, uword(0), uword(1));
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
template<typename T1>
|
||
|
|
inline
|
||
|
|
typename
|
||
|
|
enable_if2
|
||
|
|
<
|
||
|
|
(is_arma_type<T1>::value && is_complex_strict<typename T1::elem_type>::value),
|
||
|
|
const Op<T1, op_fft_cx>
|
||
|
|
>::result
|
||
|
|
fft(const T1& A, const uword N)
|
||
|
|
{
|
||
|
|
arma_extra_debug_sigprint();
|
||
|
|
|
||
|
|
return Op<T1, op_fft_cx>(A, N, uword(0));
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
template<typename T1>
|
||
|
|
inline
|
||
|
|
typename
|
||
|
|
enable_if2
|
||
|
|
<
|
||
|
|
(is_arma_type<T1>::value && is_complex_strict<typename T1::elem_type>::value),
|
||
|
|
const Op<T1, op_ifft_cx>
|
||
|
|
>::result
|
||
|
|
ifft(const T1& A)
|
||
|
|
{
|
||
|
|
arma_extra_debug_sigprint();
|
||
|
|
|
||
|
|
return Op<T1, op_ifft_cx>(A, uword(0), uword(1));
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
template<typename T1>
|
||
|
|
inline
|
||
|
|
typename
|
||
|
|
enable_if2
|
||
|
|
<
|
||
|
|
(is_arma_type<T1>::value && is_complex_strict<typename T1::elem_type>::value),
|
||
|
|
const Op<T1, op_ifft_cx>
|
||
|
|
>::result
|
||
|
|
ifft(const T1& A, const uword N)
|
||
|
|
{
|
||
|
|
arma_extra_debug_sigprint();
|
||
|
|
|
||
|
|
return Op<T1, op_ifft_cx>(A, N, uword(0));
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
//! @}
|