1 files changed, 56 insertions, 0 deletions
diff --git a/Source/Utility/hash.cpp b/Source/Utility/hash.cpp
new file mode 100644
index 00000000..18fbea0e
--- /dev/null
+++ b/Source/Utility/hash.cpp
@@ -0,0 +1,56 @@
+//-----------------------------------------------------------------------------
+//           Name: hash.cpp
+//      Developer: Wolfire Games LLC
+//    Description:
+//        License: Read below
+//-----------------------------------------------------------------------------
+//
+//   Copyright 2022 Wolfire Games LLC
+//
+//   Licensed under the Apache License, Version 2.0 (the "License");
+//   you may not use this file except in compliance with the License.
+//   You may obtain a copy of the License at
+//
+//       http://www.apache.org/licenses/LICENSE-2.0
+//
+//   Unless required by applicable law or agreed to in writing, software
+//   distributed under the License is distributed on an "AS IS" BASIS,
+//   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//   See the License for the specific language governing permissions and
+//   limitations under the License.
+//
+//-----------------------------------------------------------------------------
+#include "hash.h"
+
+#include <Internal/filesystem.h>
+
+#include <murmurhash3/MurmurHash3.h>
+
+#include <sstream>
+#include <string>
+#include <iomanip>
+#include <cstring>
+
+std::string MurmurHash::ToString() {
+    std::stringstream ss;
+
+    ss << std::hex << hash[0] << hash[1];
+
+    return ss.str();
+}
+
+MurmurHash GetFileHash( const char* file ) {
+    std::vector<unsigned char> data = readFile(file);
+
+    MurmurHash hash;
+    memset(&hash, 0, sizeof(MurmurHash));
+
+    if( data.size()  == 0 )
+    {
+        return hash;
+    }
+
+    MurmurHash3_x86_128( &data[0], data.size(), 1337, hash.hash );
+
+    return hash;
+}