max@0: // Copyright (C) 2009-2011 NICTA (www.nicta.com.au)
max@0: // Copyright (C) 2009-2011 Conrad Sanderson
max@0: // Copyright (C) 2009-2010 Dimitrios Bouzas
max@0: // 
max@0: // This file is part of the Armadillo C++ library.
max@0: // It is provided without any warranty of fitness
max@0: // for any purpose. You can redistribute this file
max@0: // and/or modify it under the terms of the GNU
max@0: // Lesser General Public License (LGPL) as published
max@0: // by the Free Software Foundation, either version 3
max@0: // of the License or (at your option) any later version.
max@0: // (see http://www.opensource.org/licenses for more info)
max@0: 
max@0: 
max@0: 
max@0: //! \addtogroup op_repmat
max@0: //! @{
max@0: 
max@0: 
max@0: 
max@0: //! \brief
max@0: //! implementation of the 'repeat matrix' operation, used for constructing matrices
max@0: template<typename T1>
max@0: inline
max@0: void
max@0: op_repmat::apply(Mat<typename T1::elem_type>& out, const Op<T1,op_repmat>& in)
max@0:   {
max@0:   arma_extra_debug_sigprint();
max@0:   
max@0:   typedef typename T1::elem_type eT;
max@0:   
max@0:   const unwrap_check<T1> tmp(in.m, out);
max@0:   const Mat<eT>& X     = tmp.M;
max@0:   
max@0:   const uword copies_per_row = in.aux_uword_a;
max@0:   const uword copies_per_col = in.aux_uword_b;
max@0:   
max@0:   const uword X_n_rows = X.n_rows;
max@0:   const uword X_n_cols = X.n_cols;
max@0:   
max@0:   out.set_size(X_n_rows * copies_per_row, X_n_cols * copies_per_col);
max@0:   
max@0:   const uword out_n_rows = out.n_rows;
max@0:   const uword out_n_cols = out.n_cols;
max@0:   
max@0:   if( (out_n_rows > 0) && (out_n_cols > 0) )
max@0:     {
max@0:     for(uword col = 0; col < out_n_cols; col += X_n_cols)
max@0:       {
max@0:       for(uword row = 0; row < out_n_rows; row += X_n_rows)
max@0:         {
max@0:         out.submat(row, col, row+X_n_rows-1, col+X_n_cols-1) = X;
max@0:         }
max@0:       }
max@0:     }
max@0:   }
max@0: 
max@0: 
max@0: 
max@0: //! @}