Mercurial > hg > orthanc
annotate Core/Compression/DeflateBaseCompressor.cpp @ 3853:ba53d51ffa9a
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| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Mon, 20 Apr 2020 18:13:31 +0200 |
| parents | 94f4a18a79cc |
| children |
| 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) 2017-2020 Osimis S.A., Belgium |
| 1512 | 6 * |
| 7 * This program is free software: you can redistribute it and/or | |
| 8 * modify it under the terms of the GNU General Public License as | |
| 9 * published by the Free Software Foundation, either version 3 of the | |
| 10 * License, or (at your option) any later version. | |
| 11 * | |
| 12 * In addition, as a special exception, the copyright holders of this | |
| 13 * program give permission to link the code of its release with the | |
| 14 * OpenSSL project's "OpenSSL" library (or with modified versions of it | |
| 15 * that use the same license as the "OpenSSL" library), and distribute | |
| 16 * the linked executables. You must obey the GNU General Public License | |
| 17 * in all respects for all of the code used other than "OpenSSL". If you | |
| 18 * modify file(s) with this exception, you may extend this exception to | |
| 19 * your version of the file(s), but you are not obligated to do so. If | |
| 20 * you do not wish to do so, delete this exception statement from your | |
| 21 * version. If you delete this exception statement from all source files | |
| 22 * in the program, then also delete it here. | |
| 23 * | |
| 24 * This program is distributed in the hope that it will be useful, but | |
| 25 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 26 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 27 * General Public License for more details. | |
| 28 * | |
| 29 * You should have received a copy of the GNU General Public License | |
| 30 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 31 **/ | |
| 32 | |
| 33 | |
| 34 #include "../PrecompiledHeaders.h" | |
| 35 #include "DeflateBaseCompressor.h" | |
| 36 | |
| 37 #include "../OrthancException.h" | |
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38 #include "../Logging.h" |
| 1512 | 39 |
| 1513 | 40 #include <string.h> |
| 41 | |
| 1512 | 42 namespace Orthanc |
| 43 { | |
| 44 void DeflateBaseCompressor::SetCompressionLevel(uint8_t level) | |
| 45 { | |
| 46 if (level >= 10) | |
| 47 { | |
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48 throw OrthancException(ErrorCode_ParameterOutOfRange, |
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49 "Zlib compression level must be between 0 (no compression) and 9 (highest compression)"); |
| 1512 | 50 } |
| 51 | |
| 52 compressionLevel_ = level; | |
| 53 } | |
| 1513 | 54 |
| 55 | |
| 56 uint64_t DeflateBaseCompressor::ReadUncompressedSizePrefix(const void* compressed, | |
| 57 size_t compressedSize) | |
| 58 { | |
| 59 if (compressedSize == 0) | |
| 60 { | |
| 61 return 0; | |
| 62 } | |
| 63 | |
| 64 if (compressedSize < sizeof(uint64_t)) | |
| 65 { | |
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66 throw OrthancException(ErrorCode_CorruptedFile, "The compressed buffer is ill-formed"); |
| 1513 | 67 } |
| 68 | |
| 69 uint64_t size; | |
| 70 memcpy(&size, compressed, sizeof(uint64_t)); | |
| 71 | |
| 72 return size; | |
| 73 } | |
| 74 | |
| 1512 | 75 } |