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dumper_padding_helper.hh
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Fri, Aug 30, 17:10
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4 KB
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text/x-c++
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Sun, Sep 1, 17:10 (2 d)
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20141548
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rAKA akantu
dumper_padding_helper.hh
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/**
* @file dumper_padding_helper.hh
*
* @author Guillaume Anciaux <guillaume.anciaux@epfl.ch>
* @author Nicolas Richart <nicolas.richart@epfl.ch>
*
* @date creation: Tue Sep 02 2014
* @date last modification: Sun Oct 19 2014
*
* @brief Padding helper for field iterators
*
* @section LICENSE
*
* Copyright (©) 2014, 2015 EPFL (Ecole Polytechnique Fédérale de Lausanne)
* Laboratory (LSMS - Laboratoire de Simulation en Mécanique des Solides)
*
* 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"
/* -------------------------------------------------------------------------- */
__BEGIN_AKANTU__
__BEGIN_AKANTU_DUMPER__
/* -------------------------------------------------------------------------- */
class
PadderInterface
{
/* ------------------------------------------------------------------------ */
/* Constructors/Destructors */
/* ------------------------------------------------------------------------ */
public
:
PadderInterface
(){
padding_m
=
0
;
padding_n
=
0
;
}
/* ------------------------------------------------------------------------ */
/* Methods */
/* ------------------------------------------------------------------------ */
public
:
void
setPadding
(
UInt
m
,
UInt
n
=
0
){
padding_m
=
m
;
padding_n
=
n
;
}
virtual
UInt
getPaddedDim
(
UInt
nb_data
)
{
return
nb_data
;
}
/* ------------------------------------------------------------------------ */
/* Class Members */
/* ------------------------------------------------------------------------ */
public
:
/// padding informations
UInt
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
,
__attribute__
((
unused
))
UInt
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
,
UInt
nrows
,
UInt
ncols
,
UInt
nb_data
)
{
Matrix
<
T
>
in
(
_in
.
storage
(),
nrows
,
ncols
);
if
(
padding_m
<=
nrows
&&
padding_n
*
nb_data
<=
ncols
)
return
in
;
else
{
Matrix
<
T
>
ret
(
padding_m
,
padding_n
*
nb_data
);
UInt
nb_cols_per_data
=
in
.
cols
()
/
nb_data
;
for
(
UInt
d
=
0
;
d
<
nb_data
;
++
d
)
for
(
UInt
i
=
0
;
i
<
in
.
rows
();
++
i
)
for
(
UInt
j
=
0
;
j
<
nb_cols_per_data
;
++
j
)
ret
(
i
,
j
+
d
*
padding_n
)
=
in
(
i
,
j
+
d
*
nb_cols_per_data
);
return
ret
;
}
}
};
/* -------------------------------------------------------------------------- */
__END_AKANTU__
__END_AKANTU_DUMPER__
#endif
/* __AKANTU_DUMPER_PADDING_HELPER_HH__ */
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