libopenraw
tiffepfile.cpp
1/*
2 * libopenraw - tiffepfile.cpp
3 *
4 * Copyright (C) 2007-2017 Hubert Figuière
5 *
6 * This library is free software: you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public License
8 * as published by the Free Software Foundation, either version 3 of
9 * the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library. If not, see
18 * <http://www.gnu.org/licenses/>.
19 */
20
21#include <vector>
22
23#include <algorithm>
24#include <memory>
25
26#include <libopenraw/debug.h>
27
28#include "rawfile.hpp"
29#include "trace.hpp"
30#include "tiffepfile.hpp"
31#include "ifddir.hpp"
32#include "ifdfilecontainer.hpp"
33
34using namespace Debug;
35
36namespace OpenRaw {
37namespace Internals {
38
39TiffEpFile::TiffEpFile(const IO::Stream::Ptr &s,
40 Type _type)
41 : IfdFile(s, _type)
42{
43}
44
45
46IfdDir::Ref TiffEpFile::_locateCfaIfd()
47{
48 const IfdDir::Ref & _mainIfd = mainIfd();
49
50 if (!_mainIfd) {
51 LOGDBG1("couldn't find main ifd\n");
52 return IfdDir::Ref();
53 }
54 if (_mainIfd->isPrimary()) {
55 return _mainIfd;
56 }
57 auto result = _mainIfd->getSubIFDs();
58 if (!result) {
59 // error
60 LOGDBG1("couldn't find main ifd nor subifds\n");
61 return IfdDir::Ref();
62 }
63
64 std::vector<IfdDir::Ref> subdirs = result.value();
65 auto i = find_if(subdirs.cbegin(),
66 subdirs.cend(),
67 [] (const IfdDir::Ref& e) {
68 return e->isPrimary();
69 });
70 if (i != subdirs.cend()) {
71 return *i;
72 }
73 LOGDBG1("couldn't find a primary subifd\n");
74 return IfdDir::Ref();
75}
76
77IfdDir::Ref TiffEpFile::_locateMainIfd()
78{
79 return m_container->setDirectory(0);
80}
81
82}
83}
84/*
85 Local Variables:
86 mode:c++
87 c-file-style:"stroustrup"
88 c-file-offsets:((innamespace . 0))
89 indent-tabs-mode:nil
90 fill-column:80
91 End:
92*/
CIFF is the container for CRW files. It is an attempt from Canon to make this a standard....
Definition: arwfile.cpp:30