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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 CprHashMap.h
\brief CPR hash map encoder class (header)
*/
#ifndef __CPRHASHMAP__
#define __CPRHASHMAP__
// Include files
#include "CommonLib/CommonDef.h"
#include "CommonLib/IntraPrediction.h"
#include "CommonLib/InterPrediction.h"
#include "CommonLib/TrQuant.h"
#include "CommonLib/Unit.h"
#include "CommonLib/UnitPartitioner.h"
#include <unordered_map>
#include <vector>
//! \ingroup EncoderLib
//! \{
// ====================================================================================================================
// Class definition
// ====================================================================================================================
class CprHashMap
{
private:
int m_picWidth;
int m_picHeight;
unsigned int** m_pos2Hash;
std::unordered_map<unsigned int, std::vector<Position>> m_hash2Pos;
unsigned int xxCalcBlockHash(const Pel* pel, const int stride, const int width, const int height, unsigned int crc);
template<ChromaFormat chromaFormat>
void xxBuildPicHashMap(const PelUnitBuf& pic);
static uint32_t xxComputeCrc32c16bit(uint32_t crc, const Pel pel);
public:
uint32_t (*m_computeCrc32c) (uint32_t crc, const Pel pel);
CprHashMap();
virtual ~CprHashMap();
void init(const int picWidth, const int picHeight);
void destroy();
void rebuildPicHashMap(const PelUnitBuf& pic);
bool cprHashMatch(const Area& lumaArea, std::vector<Position>& cand, const CodingStructure& cs, const int maxCand, const int searchRange4SmallBlk);
int getHashHitRatio(const Area& lumaArea);
#ifdef TARGET_SIMD_X86
void initCprHashMapX86();
template <X86_VEXT vext>
void _initCprHashMapX86();
#endif
};
//! \}
#endif // __CPRHASHMAP__