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comparison Core/FileFormats/PngReader.h @ 455:238a0c99ced2

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PNG reader
author Sebastien Jodogne <s.jodogne@gmail.com>
date Thu, 04 Jul 2013 15:25:15 +0200
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children 63b515853299
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454:6f47a4262618 455:238a0c99ced2
1 /**
2 * Orthanc - A Lightweight, RESTful DICOM Store
3 * Copyright (C) 2012-2013 Medical Physics Department, CHU of Liege,
4 * Belgium
5 *
6 * This program is free software: you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License as
8 * published by the Free Software Foundation, either version 3 of the
9 * License, or (at your option) any later version.
10 *
11 * In addition, as a special exception, the copyright holders of this
12 * program give permission to link the code of its release with the
13 * OpenSSL project's "OpenSSL" library (or with modified versions of it
14 * that use the same license as the "OpenSSL" library), and distribute
15 * the linked executables. You must obey the GNU General Public License
16 * in all respects for all of the code used other than "OpenSSL". If you
17 * modify file(s) with this exception, you may extend this exception to
18 * your version of the file(s), but you are not obligated to do so. If
19 * you do not wish to do so, delete this exception statement from your
20 * version. If you delete this exception statement from all source files
21 * in the program, then also delete it here.
22 *
23 * This program is distributed in the hope that it will be useful, but
24 * WITHOUT ANY WARRANTY; without even the implied warranty of
25 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
26 * General Public License for more details.
27 *
28 * You should have received a copy of the GNU General Public License
29 * along with this program. If not, see <http://www.gnu.org/licenses/>.
30 **/
31
32
33 #pragma once
34
35 #include "../Enumerations.h"
36
37 #include <vector>
38 #include <stdint.h>
39 #include <boost/shared_ptr.hpp>
40
41 namespace Orthanc
42 {
43 class PngReader
44 {
45 private:
46 struct PngRabi;
47
48 PixelFormat format_;
49 unsigned int width_;
50 unsigned int height_;
51 unsigned int pitch_;
52 std::vector<uint8_t> buffer_;
53
54 void CheckHeader(const void* header);
55
56 void Read(PngRabi& rabi);
57
58 public:
59 PngReader();
60
61 PixelFormat GetFormat() const
62 {
63 return format_;
64 }
65
66 unsigned int GetWidth() const
67 {
68 return width_;
69 }
70
71 unsigned int GetHeight() const
72 {
73 return height_;
74 }
75
76 unsigned int GetPitch() const
77 {
78 return pitch_;
79 }
80
81 const void* GetBuffer() const
82 {
83 if (buffer_.size() > 0)
84 return &buffer_[0];
85 else
86 return NULL;
87 }
88
89 void ReadFromFile(const char* filename);
90
91 void ReadFromMemory(const void* buffer,
92 size_t size);
93
94 void ReadFromMemory(const std::string& buffer);
95 };
96 }