40 lines
1.3 KiB
C++
40 lines
1.3 KiB
C++
/***
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Copyright (C) 2021 J Reece Wilson (a/k/a "Reece"). All rights reserved.
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File: BlockCompressor.hpp
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Date: 2021-6-17
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Author: Reece
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***/
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#pragma once
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namespace Aurora::Compression
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{
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class BaseCompressionStream : public ICompressionStream
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{
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public:
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BaseCompressionStream(int bufferSize = 4096 * 4) : _outbuffer(bufferSize, true) {}
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virtual ~BaseCompressionStream() {}
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virtual bool Init(const AuSPtr<IO::IStreamReader> &reader) = 0;
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virtual AuStreamReadWrittenPair_t Process(AuUInt32 len) = 0;
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virtual void ProcessFlush() = 0;
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virtual AuStreamReadWrittenPair_t Ingest(AuUInt32 bytesFromUnprocessedInputSource) override;
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virtual void Flush() override;
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virtual bool ReadByProcessedN(void * /*opt*/, AuUInt32 minimumDeflated) override;
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virtual bool ReadByProcessedN(void * /*opt*/, AuUInt32 minimumDeflated, AuStreamReadWrittenPair_t &pair, bool ingestUntilEOS = true) override;
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virtual bool GoBackByProcessedN(AuUInt32 offset) override;
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virtual bool GoForwardByProcessedN(AuUInt32 offset) override;
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/// @deprecated
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virtual AuUInt32 GetInternalBufferSize();
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bool Write(const void *a, AuUInt32 length);
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protected:
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Memory::ByteBuffer _outbuffer;
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AuUInt32 _lastCount, _count;
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};
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} |