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      1 // XzCrc64Reg.cpp
      2 
      3 #include "StdAfx.h"
      4 
      5 #include "../../C/CpuArch.h"
      6 #include "../../C/XzCrc64.h"
      7 
      8 #include "../Common/MyCom.h"
      9 
     10 #include "../7zip/ICoder.h"
     11 #include "../7zip/Common/RegisterCodec.h"
     12 
     13 class CXzCrc64Hasher:
     14   public IHasher,
     15   public CMyUnknownImp
     16 {
     17   UInt64 _crc;
     18 public:
     19   CXzCrc64Hasher(): _crc(CRC64_INIT_VAL) {}
     20 
     21   MY_UNKNOWN_IMP
     22 
     23   STDMETHOD_(void, Init)();
     24   STDMETHOD_(void, Update)(const void *data, UInt32 size);
     25   STDMETHOD_(void, Final)(Byte *digest);
     26   STDMETHOD_(UInt32, GetDigestSize)();
     27 };
     28 
     29 STDMETHODIMP_(void) CXzCrc64Hasher::Init()
     30 {
     31   _crc = CRC64_INIT_VAL;
     32 }
     33 
     34 STDMETHODIMP_(void) CXzCrc64Hasher::Update(const void *data, UInt32 size)
     35 {
     36   _crc = Crc64Update(_crc, data, size);
     37 }
     38 
     39 STDMETHODIMP_(void) CXzCrc64Hasher::Final(Byte *digest)
     40 {
     41   UInt64 val = CRC64_GET_DIGEST(_crc);
     42   SetUi64(digest, val);
     43 }
     44 
     45 STDMETHODIMP_(UInt32) CXzCrc64Hasher::GetDigestSize()
     46 {
     47   return 8;
     48 }
     49 
     50 static IHasher *CreateHasher() { return new CXzCrc64Hasher; }
     51 
     52 static CHasherInfo g_HasherInfo = { CreateHasher, 0x4, L"CRC64", 8 };
     53 
     54 REGISTER_HASHER(Crc64)
     55