diff armadillo-3.900.4/include/armadillo_bits/op_repmat_meat.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

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/armadillo-3.900.4/include/armadillo_bits/op_repmat_meat.hpp	Thu Jun 13 10:25:24 2013 +0100
@@ -0,0 +1,93 @@
+// Copyright (C) 2009-2012 NICTA (www.nicta.com.au)
+// Copyright (C) 2009-2012 Conrad Sanderson
+// Copyright (C) 2009-2010 Dimitrios Bouzas
+// 
+// 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 op_repmat
+//! @{
+
+
+
+//! \brief
+//! implementation of the 'repeat matrix' operation, used for constructing matrices
+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 unwrap_check<T1> tmp(in.m, out);
+  const Mat<eT>& X     = tmp.M;
+  
+  const uword copies_per_row = in.aux_uword_a;
+  const uword copies_per_col = in.aux_uword_b;
+  
+  const uword X_n_rows = X.n_rows;
+  const uword X_n_cols = 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 );
+          }
+        }
+      }
+    }
+  
+  }
+
+
+
+//! @}