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//-----------------------------------------------------------------------------
// 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;
}
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