Mercurial > hg > orthanc
view 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 |
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/** * Orthanc - A Lightweight, RESTful DICOM Store * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics * Department, University Hospital of Liege, Belgium * Copyright (C) 2017-2021 Osimis S.A., Belgium * * This program is free software: you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public License * as published by the Free Software Foundation, either version 3 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this program. If not, see * <http://www.gnu.org/licenses/>. **/ #include "../PrecompiledHeaders.h" #include "DeflateBaseCompressor.h" #include "../OrthancException.h" #include "../Logging.h" #include <string.h> namespace Orthanc { DeflateBaseCompressor::DeflateBaseCompressor() : compressionLevel_(6), prefixWithUncompressedSize_(false) { } void DeflateBaseCompressor::SetCompressionLevel(uint8_t level) { if (level >= 10) { throw OrthancException(ErrorCode_ParameterOutOfRange, "Zlib compression level must be between 0 (no compression) and 9 (highest compression)"); } compressionLevel_ = level; } uint64_t DeflateBaseCompressor::ReadUncompressedSizePrefix(const void* compressed, size_t compressedSize) { if (compressedSize == 0) { return 0; } if (compressedSize < sizeof(uint64_t)) { throw OrthancException(ErrorCode_CorruptedFile, "The compressed buffer is ill-formed"); } uint64_t size; memcpy(&size, compressed, sizeof(uint64_t)); return size; } void DeflateBaseCompressor::SetPrefixWithUncompressedSize(bool prefix) { prefixWithUncompressedSize_ = prefix; } bool DeflateBaseCompressor::HasPrefixWithUncompressedSize() const { return prefixWithUncompressedSize_; } uint8_t DeflateBaseCompressor::GetCompressionLevel() const { return compressionLevel_; } }