Initial commit of Command & Conquer Generals and Command & Conquer Generals Zero Hour source code.

Generals/Code/GameEngine/Include/Common/XferCRC.h

@@ -0,0 +1,74 @@
+/*
+**	Command & Conquer Generals(tm)
+**	Copyright 2025 Electronic Arts Inc.
+**
+**	This program is free software: you can redistribute it and/or modify
+**	it under the terms of the GNU General Public License as published by
+**	the Free Software Foundation, either version 3 of the License, or
+**	(at your option) any later version.
+**
+**	This program is distributed in the hope that it will be useful,
+**	but WITHOUT ANY WARRANTY; without even the implied warranty of
+**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+**	GNU General Public License for more details.
+**
+**	You should have received a copy of the GNU General Public License
+**	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+////////////////////////////////////////////////////////////////////////////////
+//																																						//
+//  (c) 2001-2003 Electronic Arts Inc.																				//
+//																																						//
+////////////////////////////////////////////////////////////////////////////////
+
+// FILE: XferCRC.h ////////////////////////////////////////////////////////////////////////////////
+// Author: Colin Day, February 2002
+// Desc:   Xfer hard disk read implementation
+///////////////////////////////////////////////////////////////////////////////////////////////////
+
+#pragma once
+
+#ifndef __XFERCRC_H_
+#define __XFERCRC_H_
+
+// USER INCLUDES //////////////////////////////////////////////////////////////////////////////////
+#include "Common/Xfer.h"
+
+// FORWARD REFERENCES /////////////////////////////////////////////////////////////////////////////
+class Snapshot;
+
+//-------------------------------------------------------------------------------------------------
+//-------------------------------------------------------------------------------------------------
+class XferCRC : public Xfer
+{
+
+public:
+
+	XferCRC( void );
+	virtual ~XferCRC( void );
+
+	// Xfer methods
+	virtual void open( AsciiString identifier );		///< start a CRC session with this xfer instance
+	virtual void close( void );											///< stop CRC session
+	virtual Int beginBlock( void );									///< start block event
+	virtual void endBlock( void );									///< end block event
+	virtual void skip( Int dataSize );							///< skip xfer event
+
+	virtual void xferSnapshot( Snapshot *snapshot );		///< entry point for xfering a snapshot
+
+	// Xfer CRC methods
+	virtual UnsignedInt getCRC( void );										///< get computed CRC in network byte order
+
+protected:
+
+	virtual void xferImplementation( void *data, Int dataSize );
+
+	void addCRC( UnsignedInt val );								///< CRC a 4-byte block
+
+	UnsignedInt m_crc;
+
+};
+
+#endif // __XFERDISKWRITE_H_
+