89 lines
2.4 KiB
C++
89 lines
2.4 KiB
C++
/**
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* Orthanc - A Lightweight, RESTful DICOM Store
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* Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
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* Department, University Hospital of Liege, Belgium
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* Copyright (C) 2017-2023 Osimis S.A., Belgium
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* Copyright (C) 2024-2025 Orthanc Team SRL, Belgium
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* Copyright (C) 2021-2025 Sebastien Jodogne, ICTEAM UCLouvain, Belgium
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*
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* This program is free software: you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public License
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* as published by the Free Software Foundation, either version 3 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this program. If not, see
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* <http://www.gnu.org/licenses/>.
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**/
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#include "../PrecompiledHeaders.h"
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#include "DeflateBaseCompressor.h"
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#include "../OrthancException.h"
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#include "../Logging.h"
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#include <string.h>
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namespace Orthanc
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{
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DeflateBaseCompressor::DeflateBaseCompressor() :
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compressionLevel_(6),
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prefixWithUncompressedSize_(false)
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{
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}
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void DeflateBaseCompressor::SetCompressionLevel(uint8_t level)
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{
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if (level >= 10)
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{
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throw OrthancException(ErrorCode_ParameterOutOfRange,
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"Zlib compression level must be between 0 (no compression) and 9 (highest compression)");
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}
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compressionLevel_ = level;
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}
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uint64_t DeflateBaseCompressor::ReadUncompressedSizePrefix(const void* compressed,
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size_t compressedSize)
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{
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if (compressedSize == 0)
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{
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return 0;
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}
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if (compressedSize < sizeof(uint64_t))
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{
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throw OrthancException(ErrorCode_CorruptedFile, "The compressed buffer is ill-formed");
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}
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uint64_t size;
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memcpy(&size, compressed, sizeof(uint64_t));
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return size;
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}
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void DeflateBaseCompressor::SetPrefixWithUncompressedSize(bool prefix)
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{
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prefixWithUncompressedSize_ = prefix;
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}
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bool DeflateBaseCompressor::HasPrefixWithUncompressedSize() const
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{
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return prefixWithUncompressedSize_;
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}
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uint8_t DeflateBaseCompressor::GetCompressionLevel() const
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{
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return compressionLevel_;
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}
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}
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