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/* The copyright in this software is being made available under the BSD
* License, included below. This software may be subject to other third party
* and contributor rights, including patent rights, and no such rights are
* granted under this license.
*
* Copyright (c) 2010-2019, ITU/ISO/IEC
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* 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 ITU/ISO/IEC 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 HOLDER 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.
*/
/** \file CacheModel.h
\brief general cache class (header)
*/
#ifndef _CACHEMODEL_H_
#define _CACHEMODEL_H_
#include "Picture.h"
// function list
#if !JVET_J0090_MEMORY_BANDWITH_MEASURE
#define JVET_J0090_SET_CACHE_ENABLE( enable ) /* do nothing */
#define JVET_J0090_SET_REF_PICTURE( refPic, compID ) /* do nothing */
#define JVET_J0090_CACHE_ACCESS( src, fileName, line ) /* do nothing */
#else
#define JVET_J0090_SET_CACHE_ENABLE( enable ) m_cacheModel->setCacheEnable( enable )
#define JVET_J0090_SET_REF_PICTURE( refPic, compID ) m_cacheModel->setRefPicture( refPic, compID )
#define JVET_J0090_CACHE_ACCESS( src, fileName, line ) m_cacheModel->cacheAccess( src, fileName, line )
class CacheModel
{
private:
// cache enable
bool m_cacheEnable;
bool m_cacheEnableFilter;
// report level
bool m_frameReport;
// cache parameters
int m_cacheLineSize; // size of byte in each entry (shall be power of 2)
int m_numCacheLine; // # of cache line
int m_numWay; // # of way
int m_cacheSize; // total entry numer (line number * way)
int m_cacheAddrMode; // cache address mode
int m_cacheBlkWidth; // block width in 2D access
int m_cacheBlkHeight; // block height in 2D access
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// cache parameters for address calc
int m_shift;
// cache entry
size_t* m_cacheAddr;
int* m_cachePoc;
ComponentID* m_cacheComp;
bool* m_available;
// access Information
int m_refPoc;
Pel* m_base;
ComponentID m_compID;
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// PLRU parameters
int m_treeDepth;
int* m_treeStatus;
// stastical infromation for a frame
int* m_hitCount; // for each cache entry
int m_missHitCount; // for calc total bandwidth
int m_totalAccess;
// stastical infromation for a sequence
int64_t m_hitCountSeq;
int64_t m_missHitCountSeq;
int64_t m_totalAccessSeq;
int m_frameCount;
public:
CacheModel();
~CacheModel();
bool isCacheEnable( ) { return m_cacheEnable; }
void create(const std::string& cacheCfgFileName);
void destroy( );
void clear( );
void reportFrame();
void reportSequence();
void cacheAccess( const Pel *addr, const std::string& fileName, const int lineNum );
void accumulateFrame( );
void setCacheEnable( bool enable );
void setRefPicture( const Picture *refPic, const ComponentID compID );
protected:
bool xIsCacheHit( int pos, size_t addr );
int xCalcTreeSize( int way );
int xCalcPower( int num );
int xGetWay( int entry );
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void xConfigure(const std::string& filename);
void xUpdateCache( int entry, size_t addr );
void xUpdateCacheStatus( int entry, int way );
// PLRU
int xGetWayTreePLRU( int entry );
void xUpdatePLRUStatus( int entry, int way );
};
#endif // JVET_J0090_MEMORY_BANDWITH_MEASURE
#endif // _CACHEMODEL_H_