update crc

Quake/crc.hpp

@@ -1,6 +1,7 @@
 /*
 Copyright (C) 1996-2001 Id Software, Inc.
 Copyright (C) 2002-2009 John Fitzgibbons and others
+Copyright (C) 2026 iikorni
 
 This program is free software; you can redistribute it and/or
 modify it under the terms of the GNU General Public License
@@ -19,15 +20,11 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 */
 
-#ifndef _QUAKE_CRC_H
-#define _QUAKE_CRC_H
-
-/* crc.h */
-
-void CRC_Init(unsigned short *crcvalue);
-void CRC_ProcessByte(unsigned short *crcvalue, byte data);
-unsigned short CRC_Value(unsigned short crcvalue);
-unsigned short CRC_Block (const byte *start, int count); //johnfitz -- texture crc
-
-#endif	/* _QUAKE_CRC_H */
+#pragma once
 
+namespace crc {
+    void init(unsigned short *val);
+    void process_byte(unsigned short *val, byte data);
+    unsigned short value(unsigned short val);
+    unsigned short block(const byte *start, int count);
+}