comparison armadillo-3.900.4/include/armadillo_bits/fn_fft.hpp @ 49:1ec0e2823891

Switch to using subrepo copies of qm-dsp, nnls-chroma, vamp-plugin-sdk; update Armadillo version; assume build without external BLAS/LAPACK

+// Copyright (C) 2013 Conrad Sanderson
+// Copyright (C) 2013 NICTA (www.nicta.com.au)
+// 
+// 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/.
+
+
+//! \addtogroup fn_fft
+//! @{
+
+
+
+// TODO:  fft(real)     -> complex [to be tested thoroughly]
+// TODO:  fft(complex)  -> complex [to be tested thoroughly]
+// TODO: ifft(complex)  -> complex [to be tested thoroughly]
+
+
+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));
+  }
+
+
+
+//! @}