mirror of
https://github.com/ptitSeb/Serious-Engine
synced 2024-11-23 02:40:26 +01:00
599f644328
introduced PLATFORM_32BIT and PLATFORM_64BIT macros, so you can do #ifdef PLATFORM_64BIT if you need to. I needed that for CDrawPort::GetID() to properly CRC a pointer. Also added a sanity check in Engine/Base/Types.h that makes sure that uintprt_t and size_t have the same size, as the code uses size_t to store pointers (or cast from pointer to int) all over the place. Made some "tags" from Engine/Templates/BSP_internal.h size_t instead of ULONG - they're used to store pointers to identify vertices and such, so they'd better be big enough to actually store a pointer. Some more are still missing.
75 lines
2.0 KiB
C
75 lines
2.0 KiB
C
/* Copyright (c) 2002-2012 Croteam Ltd.
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This program is free software; you can redistribute it and/or modify
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it under the terms of version 2 of the GNU General Public License as published by
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the Free Software Foundation
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This program 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 along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */
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#ifndef SE_INCL_CRC_H
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#define SE_INCL_CRC_H
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#ifdef PRAGMA_ONCE
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#pragma once
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#endif
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extern ENGINE_API ULONG crc_aulCRCTable[256];
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// begin crc calculation
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inline void CRC_Start(ULONG &ulCRC) { ulCRC = 0xFFFFFFFF; };
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// add data to a crc value
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inline void CRC_AddBYTE( ULONG &ulCRC, UBYTE ub)
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{
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ulCRC = (ulCRC>>8)^crc_aulCRCTable[UBYTE(ulCRC)^ub];
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};
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inline void CRC_AddWORD( ULONG &ulCRC, UWORD uw)
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{
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CRC_AddBYTE(ulCRC, UBYTE(uw>> 8));
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CRC_AddBYTE(ulCRC, UBYTE(uw>> 0));
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};
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inline void CRC_AddLONG( ULONG &ulCRC, ULONG ul)
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{
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CRC_AddBYTE(ulCRC, UBYTE(ul>>24));
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CRC_AddBYTE(ulCRC, UBYTE(ul>>16));
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CRC_AddBYTE(ulCRC, UBYTE(ul>> 8));
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CRC_AddBYTE(ulCRC, UBYTE(ul>> 0));
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};
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inline void CRC_AddLONGLONG( ULONG &ulCRC, __uint64 x)
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{
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CRC_AddBYTE(ulCRC, UBYTE(x>>56));
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CRC_AddBYTE(ulCRC, UBYTE(x>>48));
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CRC_AddBYTE(ulCRC, UBYTE(x>>40));
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CRC_AddBYTE(ulCRC, UBYTE(x>>32));
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CRC_AddBYTE(ulCRC, UBYTE(x>>24));
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CRC_AddBYTE(ulCRC, UBYTE(x>>16));
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CRC_AddBYTE(ulCRC, UBYTE(x>> 8));
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CRC_AddBYTE(ulCRC, UBYTE(x>> 0));
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}
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inline void CRC_AddFLOAT(ULONG &ulCRC, FLOAT f)
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{
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CRC_AddLONG(ulCRC, *(ULONG*)&f);
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};
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// add memory block to a CRC value
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inline void CRC_AddBlock(ULONG &ulCRC, UBYTE *pubBlock, ULONG ulSize)
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{
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for( INDEX i=0; i<ulSize; i++) CRC_AddBYTE( ulCRC, pubBlock[i]);
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};
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// end crc calculation
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inline void CRC_Finish(ULONG &ulCRC) { ulCRC ^= 0xFFFFFFFF; };
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#endif /* include-once check. */
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