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/* Copyright (C) Teemu Suutari */
#ifndef DLTADECODE_HPP
#define DLTADECODE_HPP
#include "XPKDecompressor.hpp"
namespace ancient::internal
{
class DLTADecode : public XPKDecompressor
{
public:
DLTADecode(uint32_t hdr,uint32_t recursionLevel,const Buffer &packedData,std::shared_ptr<XPKDecompressor::State> &state,bool verify);
virtual ~DLTADecode();
virtual const std::string &getSubName() const noexcept override final;
virtual void decompressImpl(Buffer &rawData,const Buffer &previousData,bool verify) override final;
static bool detectHeaderXPK(uint32_t hdr) noexcept;
static std::shared_ptr<XPKDecompressor> create(uint32_t hdr,uint32_t recursionLevel,const Buffer &packedData,std::shared_ptr<XPKDecompressor::State> &state,bool verify);
// static method for easy external usage. Buffers can be the same for in-place replacement
static void decode(Buffer &bufferDest,const Buffer &bufferSrc,size_t offset,size_t size);
private:
const Buffer &_packedData;
};
}
#endif
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