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/op_repmat_meat.hpp      | 124 +++++++++++++++++++++
 1 file changed, 124 insertions(+)
 create mode 100644 src/armadillo/include/armadillo_bits/op_repmat_meat.hpp

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

diff --git a/src/armadillo/include/armadillo_bits/op_repmat_meat.hpp b/src/armadillo/include/armadillo_bits/op_repmat_meat.hpp
new file mode 100644
index 0000000..1460350
--- /dev/null
+++ b/src/armadillo/include/armadillo_bits/op_repmat_meat.hpp
@@ -0,0 +1,124 @@
+// 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.
+// ------------------------------------------------------------------------
+
+
+
+//! \addtogroup op_repmat
+//! @{
+
+
+
+template<typename obj>
+inline
+void
+op_repmat::apply_noalias(Mat<typename obj::elem_type>& out, const obj& X, const uword copies_per_row, const uword copies_per_col)
+  {
+  arma_extra_debug_sigprint();
+  
+  typedef typename obj::elem_type eT;
+  
+  const uword X_n_rows = obj::is_row ? uword(1) : X.n_rows;
+  const uword X_n_cols = obj::is_col ? uword(1) : X.n_cols;
+  
+  out.set_size(X_n_rows * copies_per_row, X_n_cols * copies_per_col);
+  
+  const uword out_n_rows = out.n_rows;
+  const uword out_n_cols = out.n_cols;
+  
+  // if( (out_n_rows > 0) && (out_n_cols > 0) )
+  //   {
+  //   for(uword col = 0; col < out_n_cols; col += X_n_cols)
+  //   for(uword row = 0; row < out_n_rows; row += X_n_rows)
+  //     {
+  //     out.submat(row, col, row+X_n_rows-1, col+X_n_cols-1) = X;
+  //     }
+  //   }
+  
+  if( (out_n_rows > 0) && (out_n_cols > 0) )
+    {
+    if(copies_per_row != 1)
+      {
+      for(uword col_copy=0; col_copy < copies_per_col; ++col_copy)
+        {
+        const uword out_col_offset = X_n_cols * col_copy;
+        
+        for(uword col=0; col < X_n_cols; ++col)
+          {
+                eT* out_colptr = out.colptr(col + out_col_offset);
+          const eT* X_colptr   = X.colptr(col);
+          
+          for(uword row_copy=0; row_copy < copies_per_row; ++row_copy)
+            {
+            const uword out_row_offset = X_n_rows * row_copy;
+            
+            arrayops::copy( &out_colptr[out_row_offset], X_colptr, X_n_rows );
+            }
+          }
+        }
+      }
+    else
+      {
+      for(uword col_copy=0; col_copy < copies_per_col; ++col_copy)
+        {
+        const uword out_col_offset = X_n_cols * col_copy;
+        
+        for(uword col=0; col < X_n_cols; ++col)
+          {
+                eT* out_colptr = out.colptr(col + out_col_offset);
+          const eT* X_colptr   = X.colptr(col);
+          
+          arrayops::copy( out_colptr, X_colptr, X_n_rows );
+          }
+        }
+      }
+    }
+  
+  }
+
+
+
+template<typename T1>
+inline
+void
+op_repmat::apply(Mat<typename T1::elem_type>& out, const Op<T1,op_repmat>& in)
+  {
+  arma_extra_debug_sigprint();
+  
+  typedef typename T1::elem_type eT;
+  
+  const uword copies_per_row = in.aux_uword_a;
+  const uword copies_per_col = in.aux_uword_b;
+  
+  const quasi_unwrap<T1> U(in.m);
+  
+  if(U.is_alias(out))
+    {
+    Mat<eT> tmp;
+    
+    op_repmat::apply_noalias(tmp, U.M, copies_per_row, copies_per_col);
+    
+    out.steal_mem(tmp);
+    }
+  else
+    {
+    op_repmat::apply_noalias(out, U.M, copies_per_row, copies_per_col);
+    }
+  }
+
+
+
+//! @}
-- 
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