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/*
* Copyright (c) 2003-2005 The Regents of The University of Michigan
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met: redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer;
* redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution;
* neither the name of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Authors: Erik Hallnor
* Nathan Binkert
*/
#ifndef __BASE_COMPRESSION_BASE_HH__
#define __BASE_COMPRESSION_BASE_HH__
/**
* @file
* This file defines a base (abstract virtual) compression algorithm object.
*/
#include "base/types.hh"
/**
* Abstract virtual compression algorithm object.
*/
class CompressionAlgorithm
{
public:
virtual ~CompressionAlgorithm() {}
/**
* Uncompress the data, causes a fatal since no data should be compressed.
* @param dest The output buffer.
* @param src The compressed data.
* @param size The number of bytes in src.
*
* @retval The size of the uncompressed data.
*/
virtual int uncompress(uint8_t * dest, uint8_t *src, int size) = 0;
/**
* Compress the data, just returns the source data.
* @param dest The output buffer.
* @param src The data to be compressed.
* @param size The number of bytes in src.
*
* @retval The size of the compressed data.
*/
virtual int compress(uint8_t *dest, uint8_t *src, int size) = 0;
};
#endif //__BASE_COMPRESSION_BASE_HH__
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