$extrastylesheet
Olena  User documentation 2.1
An Image Processing Platform
 All Classes Namespaces Functions Variables Typedefs Enumerations Enumerator Friends Groups Pages
save_image_to_xml.hh
1 // Copyright (C) 2011 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 SCRIBO_IO_XML_INTERNAL_SAVE_IMAGE_TO_XML_HH
27 # define SCRIBO_IO_XML_INTERNAL_SAVE_IMAGE_TO_XML_HH
28 
32 
33 # include <iostream>
34 
35 # include <QtXml>
36 
37 # include <mln/core/concept/image.hh>
38 # include <mln/border/resize.hh>
39 
40 
41 // Compression level 0-9. 9 is the best but is slow.
42 // 5 seems to be a good compromise.
43 # define COMPRESSION_LEVEL 5
44 
45 namespace scribo
46 {
47 
48  namespace io
49  {
50 
51  namespace xml
52  {
53 
54  namespace internal
55  {
56  using namespace mln;
57 
58  template <typename I>
59  void
60  save_image_to_xml(std::ostream& output, const Image<I>& ima,
61  const char *qname);
62 
63 # ifndef MLN_INCLUDE_ONLY
64 
65  template <typename I>
66  void
67  save_image_to_xml(std::ostream& output, const Image<I>& ima_,
68  const char *qname)
69  {
70  mln_trace("scribo::io::xml::internal::save_image");
71 
72  mln_precondition(exact(ima_).is_valid());
73  const I& ima = exact(ima_);
74 
75  output << "<" << qname
76  << " height=\"" << ima.domain().height()
77  << "\" width=\"" << ima.domain().width() << "\">"
78  << "<![CDATA[";
79 
80  mln::border::resize(ima, 0);
81  QByteArray
82  seps64 = QByteArray::fromRawData((const char *)ima.buffer(),
83  ima.nelements() * sizeof(mln_value(I)));
84  seps64 = qCompress(seps64, COMPRESSION_LEVEL);
85  seps64 = seps64.toBase64();
86 
87  output.write(seps64.data(), seps64.size());
88 
89  output << "]]></" << qname << ">" << std::endl;
90 
91  }
92 
93 # endif // ! MLN_INCLUDE_ONLY
94 
95  } // end of namespace scribo::io::xml::internal
96 
97  } // end of namespace scribo::io::xml
98 
99  } // end of namespace scribo::io
100 
101 } // end of namespace scribo
102 
103 # undef COMPRESSION_LEVEL
104 
105 #endif // ! SCRIBO_IO_XML_INTERNAL_SAVE_IMAGE_TO_XML_HH