Mercurial > hg > orthanc
annotate OrthancFramework/Sources/Compression/DeflateBaseCompressor.cpp @ 4670:b12faca76a52
support of output streams in ZipWriter
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Fri, 28 May 2021 18:26:40 +0200 |
parents | d9473bd5ed43 |
children | 7053502fbf97 |
rev | line source |
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1512 | 1 /** |
2 * Orthanc - A Lightweight, RESTful DICOM Store | |
1900 | 3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics |
1512 | 4 * Department, University Hospital of Liege, Belgium |
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5 * Copyright (C) 2017-2021 Osimis S.A., Belgium |
1512 | 6 * |
7 * This program is free software: you can redistribute it and/or | |
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8 * modify it under the terms of the GNU Lesser General Public License |
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9 * as published by the Free Software Foundation, either version 3 of |
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10 * the License, or (at your option) any later version. |
1512 | 11 * |
12 * This program is distributed in the hope that it will be useful, but | |
13 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
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15 * Lesser General Public License for more details. |
1512 | 16 * |
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17 * You should have received a copy of the GNU Lesser General Public |
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18 * License along with this program. If not, see |
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19 * <http://www.gnu.org/licenses/>. |
1512 | 20 **/ |
21 | |
22 | |
23 #include "../PrecompiledHeaders.h" | |
24 #include "DeflateBaseCompressor.h" | |
25 | |
26 #include "../OrthancException.h" | |
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27 #include "../Logging.h" |
1512 | 28 |
1513 | 29 #include <string.h> |
30 | |
1512 | 31 namespace Orthanc |
32 { | |
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33 DeflateBaseCompressor::DeflateBaseCompressor() : |
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34 compressionLevel_(6), |
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35 prefixWithUncompressedSize_(false) |
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36 { |
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37 } |
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38 |
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39 |
1512 | 40 void DeflateBaseCompressor::SetCompressionLevel(uint8_t level) |
41 { | |
42 if (level >= 10) | |
43 { | |
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44 throw OrthancException(ErrorCode_ParameterOutOfRange, |
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45 "Zlib compression level must be between 0 (no compression) and 9 (highest compression)"); |
1512 | 46 } |
47 | |
48 compressionLevel_ = level; | |
49 } | |
1513 | 50 |
51 | |
52 uint64_t DeflateBaseCompressor::ReadUncompressedSizePrefix(const void* compressed, | |
53 size_t compressedSize) | |
54 { | |
55 if (compressedSize == 0) | |
56 { | |
57 return 0; | |
58 } | |
59 | |
60 if (compressedSize < sizeof(uint64_t)) | |
61 { | |
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62 throw OrthancException(ErrorCode_CorruptedFile, "The compressed buffer is ill-formed"); |
1513 | 63 } |
64 | |
65 uint64_t size; | |
66 memcpy(&size, compressed, sizeof(uint64_t)); | |
67 | |
68 return size; | |
69 } | |
70 | |
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71 |
4297 | 72 void DeflateBaseCompressor::SetPrefixWithUncompressedSize(bool prefix) |
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73 { |
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74 prefixWithUncompressedSize_ = prefix; |
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75 } |
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76 |
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77 bool DeflateBaseCompressor::HasPrefixWithUncompressedSize() const |
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78 { |
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79 return prefixWithUncompressedSize_; |
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80 } |
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81 |
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82 uint8_t DeflateBaseCompressor::GetCompressionLevel() const |
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83 { |
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84 return compressionLevel_; |
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85 } |
1512 | 86 } |