From 2652aed85c0ab0ee9d51cfd5065b4bb4a620ab45 Mon Sep 17 00:00:00 2001
From: Pokechu22 <Pokechu022@gmail.com>
Date: Fri, 10 Dec 2021 12:47:03 -0800
Subject: Common: Merge CRC32.h into Hash.h

This makes it easier to find the relevant functions.
---
 Source/Core/Common/Hash.cpp | 12 ++++++++++++
 1 file changed, 12 insertions(+)

(limited to 'Source/Core/Common/Hash.cpp')

diff --git a/Source/Core/Common/Hash.cpp b/Source/Core/Common/Hash.cpp
index d0b05ec7b6..692745cb0a 100644
--- a/Source/Core/Common/Hash.cpp
+++ b/Source/Core/Common/Hash.cpp
@@ -5,6 +5,8 @@
 
 #include <algorithm>
 #include <cstring>
+#include <zlib.h>
+
 #include "Common/BitUtils.h"
 #include "Common/CPUDetect.h"
 #include "Common/CommonFuncs.h"
@@ -529,4 +531,14 @@ void SetHash64Function()
     ptrHashFunction = &GetMurmurHash3;
   }
 }
+
+u32 ComputeCRC32(std::string_view data)
+{
+  const Bytef* buf = reinterpret_cast<const Bytef*>(data.data());
+  uInt len = static_cast<uInt>(data.size());
+  // Use zlib's crc32 implementation to compute the hash
+  u32 hash = crc32(0L, Z_NULL, 0);
+  hash = crc32(hash, buf, len);
+  return hash;
+}
 }  // namespace Common
-- 
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