116 lines
5.8 KiB
C++
116 lines
5.8 KiB
C++
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/*
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** Command & Conquer Renegade(tm)
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** Copyright 2025 Electronic Arts Inc.
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**
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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 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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**
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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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**
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** You should have received a copy of the GNU General Public License
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** along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/***********************************************************************************************
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*** C O N F I D E N T I A L --- W E S T W O O D S T U D I O S ***
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***********************************************************************************************
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* *
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* Project Name : WWLib *
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* *
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* $Archive:: /Commando/Code/wwlib/lzo.cpp $*
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* *
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* Author:: Greg Hjelstrom *
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* *
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* $Modtime:: 8/24/01 5:07p $*
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* *
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* $Revision:: 7 $*
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* *
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*---------------------------------------------------------------------------------------------*
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* Functions: *
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* LZOCompressor::Compress -- compress a buffer using LZO *
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* LZOCompressor::Decompress -- decompress a buffer using LZO *
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* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
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#include "lzo.h"
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#include "mutex.h"
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#include "wwdebug.h"
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#include <stdlib.h>
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/*
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** Work Buffer for the LZOCompressor...
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*/
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lzo_byte LZOCompressor::WorkBuffer[LZO1X_MEM_COMPRESS + 1];
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lzo_byte * LZOCompressor::EOWorkBuffer = &(LZOCompressor::WorkBuffer[LZO1X_MEM_COMPRESS + 1]);
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static CriticalSectionClass mutex;
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#define BUFFER_OVERRUN_TEST_VALUE ((char)0x7d)
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/***********************************************************************************************
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* LZOCompressor::Compress -- compress a buffer using LZO *
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* *
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* INPUT: *
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* *
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* OUTPUT: *
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* *
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* WARNINGS: *
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* *
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* HISTORY: *
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* 7/19/99 GTH : Created. *
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*=============================================================================================*/
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int LZOCompressor::Compress
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(
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const lzo_byte * in,
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lzo_uint in_len,
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lzo_byte * out,
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lzo_uint * out_len
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)
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{
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CriticalSectionClass::LockClass m(mutex);
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#ifdef WWDEBUG
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// Debugging code to verify that the work buffer is not overrun...
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*EOWorkBuffer = BUFFER_OVERRUN_TEST_VALUE;
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#endif
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int result = lzo1x_1_compress(in,in_len,out,out_len,WorkBuffer);
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#ifdef WWDEBUG
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WWASSERT(*EOWorkBuffer == BUFFER_OVERRUN_TEST_VALUE);
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#endif
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return result;
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}
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/***********************************************************************************************
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* LZOCompressor::Decompress -- decompress a buffer using LZO *
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* *
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* INPUT: *
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* *
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* OUTPUT: *
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* *
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* WARNINGS: *
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* *
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* HISTORY: *
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* 7/19/99 GTH : Created. *
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*=============================================================================================*/
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int LZOCompressor::Decompress
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(
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const lzo_byte * in,
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lzo_uint in_len,
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lzo_byte * out,
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lzo_uint * out_len
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)
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{
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CriticalSectionClass::LockClass m(mutex);
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return lzo1x_decompress(in,in_len,out,out_len,NULL);
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}
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