107 lines
2.3 KiB
C++
107 lines
2.3 KiB
C++
// Copyright (C) 2014-2015 National ICT Australia (NICTA)
|
|
//
|
|
// 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/.
|
|
// -------------------------------------------------------------------
|
|
//
|
|
// Written by Conrad Sanderson - http://conradsanderson.id.au
|
|
|
|
|
|
|
|
//! \addtogroup op_clamp
|
|
//! @{
|
|
|
|
|
|
|
|
template<typename T1>
|
|
inline
|
|
void
|
|
op_clamp::apply(Mat<typename T1::elem_type>& out, const mtOp<typename T1::elem_type, T1, op_clamp>& in)
|
|
{
|
|
arma_extra_debug_sigprint();
|
|
|
|
typedef typename T1::elem_type eT;
|
|
|
|
const Proxy<T1> P(in.m);
|
|
|
|
if(P.is_alias(out) && (is_Mat<T1>::value == false))
|
|
{
|
|
Mat<eT> tmp;
|
|
|
|
op_clamp::apply_noalias(tmp, P, in.aux, in.aux_out_eT);
|
|
|
|
out.steal_mem(tmp);
|
|
}
|
|
else
|
|
{
|
|
op_clamp::apply_noalias(out, P, in.aux, in.aux_out_eT);
|
|
}
|
|
}
|
|
|
|
|
|
|
|
template<typename T1>
|
|
inline
|
|
void
|
|
op_clamp::apply_noalias(Mat<typename T1::elem_type>& out, const Proxy<T1>& P, const typename T1::elem_type min_val, const typename T1::elem_type max_val)
|
|
{
|
|
arma_extra_debug_sigprint();
|
|
|
|
typedef typename T1::elem_type eT;
|
|
|
|
const uword n_rows = P.get_n_rows();
|
|
const uword n_cols = P.get_n_cols();
|
|
|
|
out.set_size(n_rows, n_cols);
|
|
|
|
eT* out_mem = out.memptr();
|
|
|
|
if(Proxy<T1>::prefer_at_accessor == false)
|
|
{
|
|
const uword N = P.get_n_elem();
|
|
|
|
typename Proxy<T1>::ea_type A = P.get_ea();
|
|
|
|
uword j;
|
|
for(j=1; j<N; j+=2)
|
|
{
|
|
eT val_i = A[j-1];
|
|
eT val_j = A[j ];
|
|
|
|
val_i = (val_i < min_val) ? min_val : ((val_i > max_val) ? max_val : val_i);
|
|
val_j = (val_j < min_val) ? min_val : ((val_j > max_val) ? max_val : val_j);
|
|
|
|
(*out_mem) = val_i; out_mem++;
|
|
(*out_mem) = val_j; out_mem++;
|
|
}
|
|
|
|
const uword i = j-1;
|
|
|
|
if(i < N)
|
|
{
|
|
eT val_i = A[i];
|
|
|
|
val_i = (val_i < min_val) ? min_val : ((val_i > max_val) ? max_val : val_i);
|
|
|
|
(*out_mem) = val_i;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
for(uword col=0; col<n_cols; ++col)
|
|
for(uword row=0; row<n_rows; ++row)
|
|
{
|
|
eT val = P.at(row,col);
|
|
|
|
val = (val < min_val) ? min_val : ((val > max_val) ? max_val : val);
|
|
|
|
(*out_mem) = val; out_mem++;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
|
|
//! @}
|