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dumper_padding_helper.hh
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Sun, Sep 1, 19:08
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Tue, Sep 3, 19:08 (2 d)
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rAKA akantu
dumper_padding_helper.hh
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/**
* Copyright (©) 2014-2023 EPFL (Ecole Polytechnique Fédérale de Lausanne)
* Laboratory (LSMS - Laboratoire de Simulation en Mécanique des Solides)
*
* This file is part of Akantu
*
* Akantu is free software: you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License as published by the Free
* Software Foundation, either version 3 of the License, or (at your option) any
* later version.
*
* Akantu is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
* A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
* details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with Akantu. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef AKANTU_DUMPER_PADDING_HELPER_HH_
#define AKANTU_DUMPER_PADDING_HELPER_HH_
/* -------------------------------------------------------------------------- */
#include "dumper_compute.hh"
/* -------------------------------------------------------------------------- */
namespace
akantu
{
namespace
dumpers
{
/* --------------------------------------------------------------------------
*/
class
PadderInterface
{
/* ------------------------------------------------------------------------
*/
/* Constructors/Destructors */
/* ------------------------------------------------------------------------
*/
public
:
PadderInterface
()
{
padding_m
=
0
;
padding_n
=
0
;
}
/* ------------------------------------------------------------------------
*/
/* Methods */
/* ------------------------------------------------------------------------
*/
public
:
void
setPadding
(
Int
m
,
Int
n
=
0
)
{
padding_m
=
m
;
padding_n
=
n
;
}
virtual
Int
getPaddedDim
(
Int
nb_data
)
{
return
nb_data
;
}
/* ------------------------------------------------------------------------
*/
/* Class Members */
/* ------------------------------------------------------------------------
*/
public
:
/// padding informations
Int
padding_n
,
padding_m
;
};
/* --------------------------------------------------------------------------
*/
template
<
class
input_type
,
class
output_type
>
class
PadderGeneric
:
public
ComputeFunctor
<
input_type
,
output_type
>
,
public
PadderInterface
{
/* ------------------------------------------------------------------------
*/
/* Constructors/Destructors */
/* ------------------------------------------------------------------------
*/
public
:
PadderGeneric
()
:
PadderInterface
()
{}
/* ------------------------------------------------------------------------
*/
/* Methods */
/* ------------------------------------------------------------------------
*/
public
:
inline
output_type
pad
(
const
input_type
&
in
,
Int
/*nb_data*/
)
{
return
in
;
// trick due to the fact that IOHelper padds the vectors (avoid
// a copy of data)
}
};
/* --------------------------------------------------------------------------
*/
template
<
class
T
>
class
PadderGeneric
<
Vector
<
T
>
,
Matrix
<
T
>>
:
public
ComputeFunctor
<
Vector
<
T
>
,
Matrix
<
T
>>
,
public
PadderInterface
{
/* ------------------------------------------------------------------------
*/
/* Constructors/Destructors */
/* ------------------------------------------------------------------------
*/
public
:
inline
Matrix
<
T
>
pad
(
const
Vector
<
T
>
&
_in
,
Int
nrows
,
Int
ncols
,
Int
nb_data
)
{
MatrixProxy
<
const
T
>
in
(
_in
.
data
(),
nrows
,
ncols
);
if
(
padding_m
<=
nrows
&&
padding_n
*
nb_data
<=
ncols
)
{
return
in
;
}
Matrix
<
T
>
ret
(
padding_m
,
padding_n
*
nb_data
);
auto
nb_cols_per_data
=
in
.
cols
()
/
nb_data
;
for
(
Int
d
=
0
;
d
<
nb_data
;
++
d
)
{
for
(
Int
i
=
0
;
i
<
in
.
rows
();
++
i
)
{
for
(
Int
j
=
0
;
j
<
nb_cols_per_data
;
++
j
)
{
ret
(
i
,
j
+
d
*
padding_n
)
=
in
(
i
,
j
+
d
*
nb_cols_per_data
);
}
}
}
return
ret
;
}
};
/* --------------------------------------------------------------------------
*/
}
// namespace dumpers
}
// namespace akantu
#endif
/* AKANTU_DUMPER_PADDING_HELPER_HH_ */
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