metaforce/Runtime/IOStreams.hpp

#ifndef __PSHAG_IOSTREAMS_HPP__
#define __PSHAG_IOSTREAMS_HPP__

#include "RetroTypes.hpp"
#include <athena/IStreamReader.hpp>
#include <athena/IStreamWriter.hpp>
#include <athena/MemoryReader.hpp>
#include <zlib.h>

namespace urde
{
using CInputStream = athena::io::IStreamReader;
using COutputStream = athena::io::IStreamWriter;

struct DecryptionCtx
{
    s32 x1c_encVal;
    s32 x20_encShift;
    s32 DecryptRead(CInputStream& in, s32 key);
};

using CMemoryInStream = athena::io::MemoryReader;

class CZipInputStream : public CInputStream
{
    std::unique_ptr<u8[]> x24_compBuf;
    std::unique_ptr<CInputStream> x28_strm;
    z_stream x30_zstrm = {};
public:
    CZipInputStream(std::unique_ptr<CInputStream>&& strm);
    ~CZipInputStream();
    atUint64 readUBytesToBuf(void *buf, atUint64 len);
    void seek(atInt64, athena::SeekOrigin) {}
    atUint64 position() const {return 0;}
    atUint64 length() const {return 0;}
};

}

#endif // __PSHAG_IOSTREAMS_HPP__