From 2d7d27722cf89525cef34d37dcb971c92aca0084 Mon Sep 17 00:00:00 2001
From: Stephen Seo <seo.disparate@gmail.com>
Date: Mon, 4 Feb 2019 16:57:29 +0900
Subject: [PATCH] Add hash macro fn

---
 src/UDPC_Defines.h | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/src/UDPC_Defines.h b/src/UDPC_Defines.h
index 77088e7..98dbe25 100644
--- a/src/UDPC_Defines.h
+++ b/src/UDPC_Defines.h
@@ -49,4 +49,18 @@ static const char *UDPC_ERR_THREADFAIL_STR = "Failed to create thread";
 
 #define UDPC_PACKET_MAX_SIZE 8192
 
+// 5 8 2 7 3 6 1
+// 3 2 5 1 8 7 6
+#define UDPC_HASH32(x) ( \
+    ( \
+      ((x & 0xF8000000) >> 5) \
+      ((x & 0x07F80000) >> 6) \
+      ((x & 0x00060000) << 10) \
+      ((x & 0x0001FC00) >> 4) \
+      ((x & 0x00000380) << 22) \
+      ((x & 0x0000007E) >> 1) \
+      ((x & 0x00000001) << 21) \
+    ) ^ 0x96969696 \
+)
+
 #endif
-- 
2.49.0