AuroraRuntime/Source/Compression/BlockCompressor.cpp

/***
    Copyright (C) 2021 J Reece Wilson (a/k/a "Reece"). All rights reserved.

    File: BlockCompressor.cpp
    Date: 2021-6-17
    Author: Reece
***/
#include <RuntimeInternal.hpp>
#include "Compression.hpp"
#include "BlockCompressor.hpp"

#include "bzlib.h"
#include "zstd.h"
#include "zlib.h"
#include "lz4.h"

namespace Aurora::Compression
{
    std::pair<AuUInt32, AuUInt32> BaseStreamDeflate::Ingest(AuUInt32 input)
    {
        auto ingest = IngestImpl(input);
        _count += ingest.first;
        return ingest;
    }

    bool BaseStreamDeflate::Read(void * /*opt*/ buffer, AuUInt32 &len, bool ingestUntilError)
    {
        if (_count != _lastCount)
        {
            Flush();
        }

        if (ingestUntilError)
        {
            while (this->_outbuffer.size() < len)
            {
                if (Ingest(4096).second == 0)
                {
                    if (this->_outbuffer.size())
                    {
                        break;
                    }

                    return false;
                }
            }
        }

        return !buffer || StreamRead(buffer, len, this->_outbuffer);
    }

    AUKN_SYM ICompressionStream *CompressorNew(IO::IStreamReader *reader, const CompressionInfo &info)
    {
        return nullptr;
    }

    AUKN_SYM void CompressorRelease(ICompressionStream * stream)
    {
        SafeDelete<BaseStreamDeflate *>(stream);
    }
}