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| author | FluorescentCIAAfricanAmerican <[email protected]> | 2020-04-22 12:56:21 -0400 |
|---|---|---|
| committer | FluorescentCIAAfricanAmerican <[email protected]> | 2020-04-22 12:56:21 -0400 |
| commit | 3bf9df6b2785fa6d951086978a3e66f49427166a (patch) | |
| tree | 2c0f1f0c63c4832882bc93814ebd2c2b1c6224e5 /public/tier1/checksum_crc.h | |
| download | archived-source-engine-2018-hl2-src-master.tar.xz archived-source-engine-2018-hl2-src-master.zip | |
Diffstat (limited to 'public/tier1/checksum_crc.h')
| -rw-r--r-- | public/tier1/checksum_crc.h | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/public/tier1/checksum_crc.h b/public/tier1/checksum_crc.h new file mode 100644 index 0000000..dbbc50a --- /dev/null +++ b/public/tier1/checksum_crc.h @@ -0,0 +1,31 @@ +//========= Copyright Valve Corporation, All rights reserved. ============// +// +// Purpose: Generic CRC functions +// +// $NoKeywords: $ +//=============================================================================// +#ifndef CHECKSUM_CRC_H +#define CHECKSUM_CRC_H +#ifdef _WIN32 +#pragma once +#endif + +typedef unsigned int CRC32_t; + +void CRC32_Init( CRC32_t *pulCRC ); +void CRC32_ProcessBuffer( CRC32_t *pulCRC, const void *p, int len ); +void CRC32_Final( CRC32_t *pulCRC ); +CRC32_t CRC32_GetTableEntry( unsigned int slot ); + +inline CRC32_t CRC32_ProcessSingleBuffer( const void *p, int len ) +{ + CRC32_t crc; + + CRC32_Init( &crc ); + CRC32_ProcessBuffer( &crc, p, len ); + CRC32_Final( &crc ); + + return crc; +} + +#endif // CHECKSUM_CRC_H |