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replace.hh
1 // Copyright (C) 2007, 2008, 2009 EPITA Research and Development Laboratory (LRDE)
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25 
26 #ifndef MLN_DATA_REPLACE_HH
27 # define MLN_DATA_REPLACE_HH
28 
32 
33 # include <mln/core/concept/image.hh>
34 # include <mln/core/image/dmorph/image_if.hh>
35 
36 # include <mln/data/fill.hh>
37 # include <mln/pw/value.hh>
38 # include <mln/pw/cst.hh>
39 
40 
41 namespace mln
42 {
43 
44  namespace data
45  {
46 
53  template <typename I>
54  void replace(Image<I>& input,
55  const mln_value(I)& old_value, const mln_value(I)& new_value);
56 
57 
58 # ifndef MLN_INCLUDE_ONLY
59 
60  namespace impl
61  {
62 
63  namespace generic
64  {
65 
66  template <typename I>
67  inline
68  void replace_(Image<I>& input_, const mln_value(I)& old_value,
69  const mln_value(I)& new_value)
70  {
71  trace::entering("data::impl::generic::replace");
72  I& input = exact(input_);
73 
74  data::fill((input | (pw::value(input) == pw::cst(old_value))).rw(),
75  new_value);
76 
77  trace::exiting("data::impl::generic::replace");
78  }
79 
80  } // end of namespace mln::data::impl::generic
81 
82  } // end of namespace mln::data::impl
83 
84 
85 
86  // Facade.
87  template <typename I>
88  void replace(Image<I>& input,
89  const mln_value(I)& old_value, const mln_value(I)& new_value)
90  {
91  trace::entering("data::replace");
92 
93  mln_precondition(exact(input).is_valid());
94 
95  impl::generic::replace_<I>(exact(input), old_value, new_value);
96 
97  trace::exiting("data::replace");
98  }
99 
100 
101 # endif // ! MLN_INCLUDE_ONLY
102 
103  } // end of namespace mln::data
104 
105 } // end of namespace mln
106 
107 
108 #endif // ! MLN_DATA_REPLACE_HH