Add xxHash functionss to context menu

CPP/Common/XXH32Reg.cpp

@@ -0,0 +1,44 @@
+// XXH32Reg.cpp
+
+#include "StdAfx.h"
+
+#define XXH_STATIC_LINKING_ONLY
+#include "../../C/CpuArch.h"
+#include "../../C/zstd/xxhash.h"
+
+#include "../Common/MyCom.h"
+
+#include "../7zip/Common/RegisterCodec.h"
+
+class CXXH32Hasher:
+  public IHasher,
+  public CMyUnknownImp
+{
+  XXH32_state_t *_ctx;
+  Byte mtDummy[1 << 7];
+
+public:
+  CXXH32Hasher() { _ctx = XXH32_createState(); }
+  ~CXXH32Hasher() { XXH32_freeState(_ctx); }
+
+  MY_UNKNOWN_IMP1(IHasher)
+  INTERFACE_IHasher(;)
+};
+
+STDMETHODIMP_(void) CXXH32Hasher::Init() throw()
+{
+  XXH32_reset(_ctx, 0);
+}
+
+STDMETHODIMP_(void) CXXH32Hasher::Update(const void *data, UInt32 size) throw()
+{
+  XXH32_update(_ctx, data, size);
+}
+
+STDMETHODIMP_(void) CXXH32Hasher::Final(Byte *digest) throw()
+{
+  UInt32 val = XXH32_digest(_ctx);
+  SetUi32(digest, val);
+}
+
+REGISTER_HASHER(CXXH32Hasher, 0x202, "XXH32", 4)

CPP/Common/XXH64Reg.cpp

@@ -0,0 +1,44 @@
+// XXH64Reg.cpp
+
+#include "StdAfx.h"
+
+#define XXH_STATIC_LINKING_ONLY
+#include "../../C/CpuArch.h"
+#include "../../C/zstd/xxhash.h"
+
+#include "../Common/MyCom.h"
+
+#include "../7zip/Common/RegisterCodec.h"
+
+class CXXH64Hasher:
+  public IHasher,
+  public CMyUnknownImp
+{
+  XXH64_state_t *_ctx;
+  Byte mtDummy[1 << 7];
+
+public:
+  CXXH64Hasher() { _ctx = XXH64_createState(); }
+  ~CXXH64Hasher() { XXH64_freeState(_ctx); }
+
+  MY_UNKNOWN_IMP1(IHasher)
+  INTERFACE_IHasher(;)
+};
+
+STDMETHODIMP_(void) CXXH64Hasher::Init() throw()
+{
+  XXH64_reset(_ctx, 0);
+}
+
+STDMETHODIMP_(void) CXXH64Hasher::Update(const void *data, UInt32 size) throw()
+{
+  XXH64_update(_ctx, data, size);
+}
+
+STDMETHODIMP_(void) CXXH64Hasher::Final(Byte *digest) throw()
+{
+  UInt64 val = XXH64_digest(_ctx);
+  SetUi64(digest, val);
+}
+
+REGISTER_HASHER(CXXH64Hasher, 0x203, "XXH64", 8)