102 lines
2.6 KiB
C++
102 lines
2.6 KiB
C++
// 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_repelem
|
|
//! @{
|
|
|
|
|
|
|
|
template<typename obj>
|
|
inline
|
|
void
|
|
op_repelem::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);
|
|
|
|
if(out.n_elem == 0) { return; }
|
|
|
|
for(uword col=0; col < X_n_cols; ++col)
|
|
{
|
|
const uword out_col_offset = col * copies_per_col;
|
|
|
|
eT* out_colptr_first = out.colptr(out_col_offset);
|
|
|
|
for(uword row=0; row < X_n_rows; ++row)
|
|
{
|
|
const uword out_row_offset = row * copies_per_row;
|
|
|
|
const eT copy_value = X.at(row, col);
|
|
|
|
for(uword row_copy=0; row_copy < copies_per_row; ++row_copy)
|
|
{
|
|
out_colptr_first[out_row_offset + row_copy] = copy_value;
|
|
}
|
|
|
|
if(copies_per_col != 1)
|
|
{
|
|
for(uword col_copy=1; col_copy < copies_per_col; ++col_copy)
|
|
{
|
|
eT* out_colptr = out.colptr(out_col_offset + col_copy);
|
|
|
|
arrayops::copy(&out_colptr[out_row_offset], &out_colptr_first[out_row_offset], copies_per_row);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
|
|
template<typename T1>
|
|
inline
|
|
void
|
|
op_repelem::apply(Mat<typename T1::elem_type>& out, const Op<T1,op_repelem>& 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_repelem::apply_noalias(tmp, U.M, copies_per_row, copies_per_col);
|
|
|
|
out.steal_mem(tmp);
|
|
}
|
|
else
|
|
{
|
|
op_repelem::apply_noalias(out, U.M, copies_per_row, copies_per_col);
|
|
}
|
|
}
|
|
|
|
|
|
|
|
//! @}
|