Milena (Olena)  User documentation 2.0a Id
 All Classes Namespaces Functions Variables Typedefs Enumerator Groups Pages
resize_equal.hh
1 // Copyright (C) 2009 EPITA Research and Development Laboratory (LRDE)
2 //
3 // This file is part of Olena.
4 //
5 // Olena is free software: you can redistribute it and/or modify it under
6 // the terms of the GNU General Public License as published by the Free
7 // Software Foundation, version 2 of the License.
8 //
9 // Olena is distributed in the hope that it will be useful,
10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 // General Public License for more details.
13 //
14 // You should have received a copy of the GNU General Public License
15 // along with Olena. If not, see <http://www.gnu.org/licenses/>.
16 //
17 // As a special exception, you may use this file as part of a free
18 // software project without restriction. Specifically, if other files
19 // instantiate templates or use macros or inline functions from this
20 // file, or you compile this file and link it with other files to produce
21 // an executable, this file does not by itself cause the resulting
22 // executable to be covered by the GNU General Public License. This
23 // exception does not however invalidate any other reasons why the
24 // executable file might be covered by the GNU General Public License.
25 
26 #ifndef MLN_BORDER_RESIZE_EQUAL_HH
27 # define MLN_BORDER_RESIZE_EQUAL_HH
28 
33 
34 # include <mln/border/resize.hh>
35 
36 
37 namespace mln
38 {
39 
40  namespace border
41  {
42 
43  // FIXEM: Doc!
44  template <typename I, typename J>
45  void
46  resize_equal(const Image<I>& ima1, const Image<J>& ima2);
47 
48 
49 
50 # ifndef MLN_INCLUDE_ONLY
51 
52  template <typename I, typename J>
53  inline
54  void
55  resize_equal(const Image<I>& ima1_, const Image<J>& ima2_)
56  {
57  trace::entering("border::resize_equal");
58 
59  // Static checks.
60  mlc_equal(mln_trait_image_ext_domain(I),
61  trait::image::ext_domain::extendable)::check();
62  mlc_equal(mln_trait_image_ext_domain(J),
63  trait::image::ext_domain::extendable)::check();
64 
65  const I& ima1 = exact(ima1_);
66  const J& ima2 = exact(ima2_);
67 
68  // Dynamic tests.
69  mln_precondition(ima1.is_valid());
70  mln_precondition(ima2.is_valid());
71  mln_precondition(ima2.domain() == ima1.domain());
72 
73  unsigned
74  b1 = border::get(ima1),
75  b2 = border::get(ima2);
76 
77  if (b2 > b1)
78  border::resize(ima1, b2);
79  else
80  if (b1 > b2)
81  border::resize(ima2, b1);
82  // else no-op when b2 == b1.
83 
84  trace::exiting("border::resize_equal");
85  }
86 
87 # endif // ! MLN_INCLUDE_ONLY
88 
89  } // end of namespace mln::border
90 
91 } // end of namespace mln
92 
93 
94 #endif // ! MLN_BORDER_RESIZE_EQUAL_HH