From eda5bc26f44ee9a6f83dcf8c91f17296d7fc509d Mon Sep 17 00:00:00 2001
From: Nao Pross <np@0hm.ch>
Date: Mon, 12 Feb 2024 14:52:43 +0100
Subject: Move into version control

---
 .../include/armadillo_bits/translate_fftw3.hpp     | 106 +++++++++++++++++++++
 1 file changed, 106 insertions(+)
 create mode 100644 src/armadillo/include/armadillo_bits/translate_fftw3.hpp

(limited to 'src/armadillo/include/armadillo_bits/translate_fftw3.hpp')

diff --git a/src/armadillo/include/armadillo_bits/translate_fftw3.hpp b/src/armadillo/include/armadillo_bits/translate_fftw3.hpp
new file mode 100644
index 0000000..1edd727
--- /dev/null
+++ b/src/armadillo/include/armadillo_bits/translate_fftw3.hpp
@@ -0,0 +1,106 @@
+// SPDX-License-Identifier: Apache-2.0
+// 
+// Copyright 2008-2016 Conrad Sanderson (http://conradsanderson.id.au)
+// Copyright 2008-2016 National ICT Australia (NICTA)
+// 
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+// http://www.apache.org/licenses/LICENSE-2.0
+// 
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+// ------------------------------------------------------------------------
+
+
+#if defined(ARMA_USE_FFTW3)
+
+
+namespace fftw3
+  {
+  template<typename eT>
+  arma_inline
+  void_ptr
+  plan_dft_1d(int N, eT* input, eT* output, int fftw3_sign, unsigned int fftw3_flags)
+    {
+    arma_type_check((is_cx<eT>::value == false));
+    
+    if(is_cx_float<eT>::value)
+      {
+      return fftwf_plan_dft_1d(N, (cx_float*)input, (cx_float*)output, fftw3_sign, fftw3_flags);
+      }
+    else
+    if(is_cx_double<eT>::value)
+      {
+      return fftw_plan_dft_1d(N, (cx_double*)input, (cx_double*)output, fftw3_sign, fftw3_flags);
+      }
+    
+    return nullptr;
+    }
+  
+  
+  
+  template<typename eT>
+  arma_inline
+  void
+  execute(void_ptr plan)
+    {
+    arma_type_check((is_cx<eT>::value == false));
+    
+    if(is_cx_float<eT>::value)
+      {
+      fftwf_execute(plan);
+      }
+    else
+    if(is_cx_double<eT>::value)
+      {
+      fftw_execute(plan);
+      }
+    }
+  
+  
+  
+  template<typename eT>
+  arma_inline
+  void
+  destroy_plan(void_ptr plan)
+    {
+    arma_type_check((is_cx<eT>::value == false));
+    
+    if(is_cx_float<eT>::value)
+      {
+      fftwf_destroy_plan(plan);
+      }
+    else
+    if(is_cx_double<eT>::value)
+      {
+      fftw_destroy_plan(plan);
+      }
+    }
+  
+  
+  
+  template<typename eT>
+  arma_inline
+  void
+  cleanup()
+    {
+    arma_type_check((is_cx<eT>::value == false));
+    
+    if(is_cx_float<eT>::value)
+      {
+      fftwf_cleanup();
+      }
+    else
+    if(is_cx_double<eT>::value)
+      {
+      fftw_cleanup();
+      }
+    }
+  }
+
+
+#endif
-- 
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