1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
|
/*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* The Original Code is Copyright (C) 2016 Kévin Dietrich.
* All rights reserved.
*/
/** \file
* \ingroup balembic
*/
#include "abc_reader_archive.h"
#include "Alembic/AbcCoreLayer/Read.h"
#include "BKE_main.h"
#include "BLI_path_util.h"
#include "BLI_string.h"
#ifdef WIN32
# include "utfconv.h"
#endif
#include <fstream>
using Alembic::Abc::ErrorHandler;
using Alembic::Abc::Exception;
using Alembic::Abc::IArchive;
using Alembic::Abc::kWrapExisting;
namespace blender::io::alembic {
static IArchive open_archive(const std::string &filename,
const std::vector<std::istream *> &input_streams)
{
try {
Alembic::AbcCoreOgawa::ReadArchive archive_reader(input_streams);
return IArchive(archive_reader(filename), kWrapExisting, ErrorHandler::kThrowPolicy);
}
catch (const Exception &e) {
std::cerr << e.what() << '\n';
/* Inspect the file to see whether it's actually a HDF5 file. */
char header[4]; /* char(0x89) + "HDF" */
std::ifstream the_file(filename.c_str(), std::ios::in | std::ios::binary);
if (!the_file) {
std::cerr << "Unable to open " << filename << std::endl;
}
else if (!the_file.read(header, sizeof(header))) {
std::cerr << "Unable to read from " << filename << std::endl;
}
else if (strncmp(header + 1, "HDF", 3) != 0) {
std::cerr << filename << " has an unknown file format, unable to read." << std::endl;
}
else {
std::cerr << filename << " is in the obsolete HDF5 format, unable to read." << std::endl;
}
if (the_file.is_open()) {
the_file.close();
}
}
return IArchive();
}
ArchiveReader *ArchiveReader::get(struct Main *bmain, const std::vector<const char *> &filenames)
{
std::vector<ArchiveReader *> readers;
for (const char *filename : filenames) {
auto reader = new ArchiveReader(bmain, filename);
if (!reader->valid()) {
delete reader;
continue;
}
readers.push_back(reader);
}
if (readers.size() == 0) {
return nullptr;
}
if (readers.size() == 1) {
return readers[0];
}
return new ArchiveReader(readers);
}
ArchiveReader::ArchiveReader(const std::vector<ArchiveReader *> &readers) : m_readers(readers)
{
Alembic::AbcCoreLayer::ArchiveReaderPtrs archives;
for (auto &reader : readers) {
archives.push_back(reader->m_archive.getPtr());
}
Alembic::AbcCoreLayer::ReadArchive layer;
Alembic::AbcCoreAbstract::ArchiveReaderPtr arPtr = layer(archives);
m_archive = IArchive(arPtr, kWrapExisting, ErrorHandler::kThrowPolicy);
}
ArchiveReader::ArchiveReader(struct Main *bmain, const char *filename)
{
char abs_filename[FILE_MAX];
BLI_strncpy(abs_filename, filename, FILE_MAX);
BLI_path_abs(abs_filename, BKE_main_blendfile_path(bmain));
#ifdef WIN32
UTF16_ENCODE(abs_filename);
std::wstring wstr(abs_filename_16);
m_infile.open(wstr.c_str(), std::ios::in | std::ios::binary);
UTF16_UN_ENCODE(abs_filename);
#else
m_infile.open(abs_filename, std::ios::in | std::ios::binary);
#endif
m_streams.push_back(&m_infile);
m_archive = open_archive(abs_filename, m_streams);
}
ArchiveReader::~ArchiveReader()
{
for (ArchiveReader *reader : m_readers) {
delete reader;
}
}
bool ArchiveReader::valid() const
{
return m_archive.valid();
}
Alembic::Abc::IObject ArchiveReader::getTop()
{
return m_archive.getTop();
}
} // namespace blender::io::alembic
|
