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70 lines
2.1 KiB
C++
70 lines
2.1 KiB
C++
/******************************************************************************
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* The MIT License (MIT)
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*
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* Copyright (c) 2019-2025 Baldur Karlsson
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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******************************************************************************/
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#pragma once
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#include "zstd/zstd.h"
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#include "streamio.h"
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class ZSTDCompressor : public Compressor
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{
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public:
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ZSTDCompressor(StreamWriter *write, Ownership own);
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~ZSTDCompressor();
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bool Write(const void *data, uint64_t numBytes);
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bool Finish();
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private:
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bool FlushPage();
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bool CompressZSTDFrame(ZSTD_inBuffer &in, ZSTD_outBuffer &out);
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byte *m_Page;
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byte *m_CompressBuffer;
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uint64_t m_PageOffset;
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ZSTD_CStream *m_Stream;
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};
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class ZSTDDecompressor : public Decompressor
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{
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public:
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ZSTDDecompressor(StreamReader *read, Ownership own);
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~ZSTDDecompressor();
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bool Recompress(Compressor *comp);
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bool Read(void *data, uint64_t numBytes);
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private:
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bool FillPage();
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byte *m_Page;
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byte *m_CompressBuffer;
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uint64_t m_PageOffset;
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uint64_t m_PageLength;
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ZSTD_DStream *m_Stream;
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};
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