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