Mercurial > hg > orthanc

annotate OrthancFramework/Sources/Compression/DeflateBaseCompressor.cpp @ 4670:b12faca76a52

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
support of output streams in ZipWriter
author Sebastien Jodogne <s.jodogne@gmail.com>
date Fri, 28 May 2021 18:26:40 +0200
parents d9473bd5ed43
children 7053502fbf97
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
1512
52dc56bcec7d refactoring
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
1 /**
52dc56bcec7d refactoring
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
2 * Orthanc - A Lightweight, RESTful DICOM Store
1900
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1582
diff changeset
3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
1512
52dc56bcec7d refactoring
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
4 * Department, University Hospital of Liege, Belgium
4437
d9473bd5ed43 upgrade to year 2021
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4297
diff changeset
5 * Copyright (C) 2017-2021 Osimis S.A., Belgium
1512
52dc56bcec7d refactoring
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
6 *
52dc56bcec7d refactoring
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
7 * This program is free software: you can redistribute it and/or
4119
bf7b9edf6b81 re-licensing the OrthancFramework to LGPL, in order to license Stone of Orthanc under LGPL
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4044
diff changeset
8 * modify it under the terms of the GNU Lesser General Public License
bf7b9edf6b81 re-licensing the OrthancFramework to LGPL, in order to license Stone of Orthanc under LGPL
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4044
diff changeset
9 * as published by the Free Software Foundation, either version 3 of
bf7b9edf6b81 re-licensing the OrthancFramework to LGPL, in order to license Stone of Orthanc under LGPL
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4044
diff changeset
10 * the License, or (at your option) any later version.
1512
52dc56bcec7d refactoring
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
11 *
52dc56bcec7d refactoring
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
12 * This program is distributed in the hope that it will be useful, but
52dc56bcec7d refactoring
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
52dc56bcec7d refactoring
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
4119
bf7b9edf6b81 re-licensing the OrthancFramework to LGPL, in order to license Stone of Orthanc under LGPL
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4044
diff changeset
15 * Lesser General Public License for more details.
1512
52dc56bcec7d refactoring
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
16 *
4119
bf7b9edf6b81 re-licensing the OrthancFramework to LGPL, in order to license Stone of Orthanc under LGPL
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4044
diff changeset
17 * You should have received a copy of the GNU Lesser General Public
bf7b9edf6b81 re-licensing the OrthancFramework to LGPL, in order to license Stone of Orthanc under LGPL
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4044
diff changeset
18 * License along with this program. If not, see
bf7b9edf6b81 re-licensing the OrthancFramework to LGPL, in order to license Stone of Orthanc under LGPL
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4044
diff changeset
19 * <http://www.gnu.org/licenses/>.
1512
52dc56bcec7d refactoring
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
20 **/
52dc56bcec7d refactoring
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
21
52dc56bcec7d refactoring
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
22
52dc56bcec7d refactoring
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
23 #include "../PrecompiledHeaders.h"
52dc56bcec7d refactoring
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
24 #include "DeflateBaseCompressor.h"
52dc56bcec7d refactoring
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
25
52dc56bcec7d refactoring
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
26 #include "../OrthancException.h"
1582
bd1889029cbb encoding of exceptions
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1513
diff changeset
27 #include "../Logging.h"
1512
52dc56bcec7d refactoring
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
28
1513
fe07f82d83d3 gzip compression
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1512
diff changeset
29 #include <string.h>
fe07f82d83d3 gzip compression
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1512
diff changeset
30
1512
52dc56bcec7d refactoring
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
31 namespace Orthanc
52dc56bcec7d refactoring
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
32 {
4279
ab4d015af660 moving inline methods to source files for ABI compatibility
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4119
diff changeset
33 DeflateBaseCompressor::DeflateBaseCompressor() :
ab4d015af660 moving inline methods to source files for ABI compatibility
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4119
diff changeset
34 compressionLevel_(6),
ab4d015af660 moving inline methods to source files for ABI compatibility
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4119
diff changeset
35 prefixWithUncompressedSize_(false)
ab4d015af660 moving inline methods to source files for ABI compatibility
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4119
diff changeset
36 {
ab4d015af660 moving inline methods to source files for ABI compatibility
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4119
diff changeset
37 }
ab4d015af660 moving inline methods to source files for ABI compatibility
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4119
diff changeset
38
ab4d015af660 moving inline methods to source files for ABI compatibility
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4119
diff changeset
39
1512
52dc56bcec7d refactoring
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
40 void DeflateBaseCompressor::SetCompressionLevel(uint8_t level)
52dc56bcec7d refactoring
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
41 {
52dc56bcec7d refactoring
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
42 if (level >= 10)
52dc56bcec7d refactoring
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
43 {
2954
d924f9bb61cc taking advantage of details in OrthancException
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 2447
diff changeset
44 throw OrthancException(ErrorCode_ParameterOutOfRange,
d924f9bb61cc taking advantage of details in OrthancException
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 2447
diff changeset
45 "Zlib compression level must be between 0 (no compression) and 9 (highest compression)");
1512
52dc56bcec7d refactoring
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
46 }
52dc56bcec7d refactoring
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
47
52dc56bcec7d refactoring
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
48 compressionLevel_ = level;
52dc56bcec7d refactoring
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
49 }
1513
fe07f82d83d3 gzip compression
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1512
diff changeset
50
fe07f82d83d3 gzip compression
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1512
diff changeset
51
fe07f82d83d3 gzip compression
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1512
diff changeset
52 uint64_t DeflateBaseCompressor::ReadUncompressedSizePrefix(const void* compressed,
fe07f82d83d3 gzip compression
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1512
diff changeset
53 size_t compressedSize)
fe07f82d83d3 gzip compression
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1512
diff changeset
54 {
fe07f82d83d3 gzip compression
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1512
diff changeset
55 if (compressedSize == 0)
fe07f82d83d3 gzip compression
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1512
diff changeset
56 {
fe07f82d83d3 gzip compression
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1512
diff changeset
57 return 0;
fe07f82d83d3 gzip compression
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1512
diff changeset
58 }
fe07f82d83d3 gzip compression
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1512
diff changeset
59
fe07f82d83d3 gzip compression
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1512
diff changeset
60 if (compressedSize < sizeof(uint64_t))
fe07f82d83d3 gzip compression
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1512
diff changeset
61 {
2954
d924f9bb61cc taking advantage of details in OrthancException
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 2447
diff changeset
62 throw OrthancException(ErrorCode_CorruptedFile, "The compressed buffer is ill-formed");
1513
fe07f82d83d3 gzip compression
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1512
diff changeset
63 }
fe07f82d83d3 gzip compression
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1512
diff changeset
64
fe07f82d83d3 gzip compression
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1512
diff changeset
65 uint64_t size;
fe07f82d83d3 gzip compression
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1512
diff changeset
66 memcpy(&size, compressed, sizeof(uint64_t));
fe07f82d83d3 gzip compression
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1512
diff changeset
67
fe07f82d83d3 gzip compression
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1512
diff changeset
68 return size;
fe07f82d83d3 gzip compression
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1512
diff changeset
69 }
fe07f82d83d3 gzip compression
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1512
diff changeset
70
4279
ab4d015af660 moving inline methods to source files for ABI compatibility
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4119
diff changeset
71
4297
785a2713323e abi continued
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4279
diff changeset
72 void DeflateBaseCompressor::SetPrefixWithUncompressedSize(bool prefix)
4279
ab4d015af660 moving inline methods to source files for ABI compatibility
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4119
diff changeset
73 {
ab4d015af660 moving inline methods to source files for ABI compatibility
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4119
diff changeset
74 prefixWithUncompressedSize_ = prefix;
ab4d015af660 moving inline methods to source files for ABI compatibility
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4119
diff changeset
75 }
ab4d015af660 moving inline methods to source files for ABI compatibility
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4119
diff changeset
76
ab4d015af660 moving inline methods to source files for ABI compatibility
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4119
diff changeset
77 bool DeflateBaseCompressor::HasPrefixWithUncompressedSize() const
ab4d015af660 moving inline methods to source files for ABI compatibility
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4119
diff changeset
78 {
ab4d015af660 moving inline methods to source files for ABI compatibility
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4119
diff changeset
79 return prefixWithUncompressedSize_;
ab4d015af660 moving inline methods to source files for ABI compatibility
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4119
diff changeset
80 }
ab4d015af660 moving inline methods to source files for ABI compatibility
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4119
diff changeset
81
ab4d015af660 moving inline methods to source files for ABI compatibility
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4119
diff changeset
82 uint8_t DeflateBaseCompressor::GetCompressionLevel() const
ab4d015af660 moving inline methods to source files for ABI compatibility
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4119
diff changeset
83 {
ab4d015af660 moving inline methods to source files for ABI compatibility
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4119
diff changeset
84 return compressionLevel_;
ab4d015af660 moving inline methods to source files for ABI compatibility
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4119
diff changeset
85 }
1512
52dc56bcec7d refactoring
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
86 }