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74 lines
2.3 KiB
C
74 lines
2.3 KiB
C
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/*
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===========================================================================
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Doom 3 BFG Edition GPL Source Code
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Copyright (C) 1993-2012 id Software LLC, a ZeniMax Media company.
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This file is part of the Doom 3 BFG Edition GPL Source Code ("Doom 3 BFG Edition Source Code").
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Doom 3 BFG Edition Source Code is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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Doom 3 BFG Edition Source Code is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Doom 3 BFG Edition Source Code. If not, see <http://www.gnu.org/licenses/>.
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In addition, the Doom 3 BFG Edition Source Code is also subject to certain additional terms. You should have received a copy of these additional terms immediately following the terms and conditions of the GNU General Public License which accompanied the Doom 3 BFG Edition Source Code. If not, please request a copy in writing from id Software at the address below.
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If you have questions concerning this license or the applicable additional terms, you may contact in writing id Software LLC, c/o ZeniMax Media Inc., Suite 120, Rockville, Maryland 20850 USA.
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===========================================================================
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*/
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#ifndef __M_SWAP__
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#define __M_SWAP__
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#ifdef __GNUG__
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#pragma interface
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#endif
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// Endianess handling.
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// WAD files are stored little endian.
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#ifdef __BIG_ENDIAN__
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//short SwapSHORT(short);
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//long SwapLONG(long);
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// Swap 16bit, that is, MSB and LSB byte.
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inline unsigned short SwapSHORT(unsigned short x)
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{
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// No masking with 0xFF should be necessary.
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return (x>>8) | (x<<8);
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}
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// Swapping 32bit.
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inline unsigned long SwapLONG( unsigned long x)
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{
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return
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(x>>24)
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| ((x>>8) & 0xff00)
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| ((x<<8) & 0xff0000)
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| (x<<24);
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}
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#define SHORT(x) ((short)SwapSHORT((unsigned short) (x)))
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#define LONG(x) ((long)SwapLONG((unsigned long) (x)))
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#else
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#define SHORT(x) (x)
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#define LONG(x) (x)
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#endif
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#endif
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