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/* Copyright (C) Teemu Suutari */
#ifndef XPKMAIN_HPP
#define XPKMAIN_HPP
#include "Decompressor.hpp"
#include "XPKDecompressor.hpp"
#include <vector>
namespace ancient::internal
{
class XPKMain : public Decompressor
{
friend class XPKDecompressor;
public:
XPKMain(const Buffer &packedData,bool verify,uint32_t recursionLevel);
virtual ~XPKMain();
virtual const std::string &getName() const noexcept override final;
virtual size_t getPackedSize() const noexcept override final;
virtual size_t getRawSize() const noexcept override final;
virtual void decompressImpl(Buffer &rawData,bool verify) override final;
static bool detectHeader(uint32_t hdr) noexcept;
static std::shared_ptr<Decompressor> create(const Buffer &packedData,bool exactSizeKnown,bool verify);
// Can be used to create directly decoder for chunk (needed by CYB2)
static std::shared_ptr<XPKDecompressor> createDecompressor(uint32_t type,uint32_t recursionLevel,const Buffer &buffer,std::shared_ptr<XPKDecompressor::State> &state,bool verify);
private:
static void registerDecompressor(bool(*detect)(uint32_t),std::shared_ptr<XPKDecompressor>(*create)(uint32_t,uint32_t,const Buffer&,std::shared_ptr<XPKDecompressor::State>&,bool));
static constexpr uint32_t getMaxRecursionLevel() noexcept { return 4; }
template <typename F>
void forEachChunk(F func) const;
const Buffer &_packedData;
uint32_t _packedSize=0;
uint32_t _rawSize=0;
uint32_t _headerSize=0;
uint32_t _type=0;
bool _longHeaders=false;
uint32_t _recursionLevel=0;
};
}
#endif
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