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

    File: Compression.hpp
    Date: 2021-6-17
    Author: Reece
***/
#pragma once

namespace Aurora::Compression
{
    static const AuUInt64 kChunkSize = 4096;

    // This is acommon prolog required by BlockCompressors and BlockDecompressors. dw about it. 
    static inline bool StreamRead(void * /*opt*/ buffer, AuUInt32 &len, AuList<AuUInt8> &vec)
    {
        len = std::min(AuUInt32(vec.size()), len);
        if (len == 0) return false;
        std::memcpy(buffer, vec.data(), len);
        auto rem = vec.size() - len;
        std::memmove(vec.data(), vec.data() + len, rem);
        vec.resize(rem);
        return true;
    }
}