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Editor/Util/crc32.h

@@ -0,0 +1,38 @@
+////////////////////////////////////////////////////////////////////////////
+//
+//  Crytek Engine Source File.
+//  Copyright (C), Crytek Studios, 2002.
+// -------------------------------------------------------------------------
+//  File name:   crc32.h
+//  Version:     v1.00
+//  Created:     31/10/2002 by Timur.
+//  Compilers:   Visual Studio.NET
+//  Description: 
+// -------------------------------------------------------------------------
+//  History:
+//
+////////////////////////////////////////////////////////////////////////////
+
+#ifndef __crc32_h__
+#define __crc32_h__
+
+#if _MSC_VER > 1000
+#pragma once
+#endif
+
+
+class Crc32Gen {
+public:
+	Crc32Gen();
+	//! Creates a CRC from a text string 
+	static unsigned int GetCRC32( const char *text );
+	static unsigned int GetCRC32( const char *data,int size,unsigned int ulCRC );
+
+protected:
+	unsigned int crc32_table[256];  //!< Lookup table array 
+	void init_CRC32_Table();  //!< Builds lookup table array 
+	unsigned int reflect( unsigned int ref, char ch); //!< Reflects CRC bits in the lookup table 
+	unsigned int get_CRC32( const char *data,int size,unsigned int ulCRC );
+};
+
+#endif // __crc32_h__