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 * and contributor rights, including patent rights, and no such rights are
 * granted under this license.
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 * Copyright (c) 2010-2019, ITU/ISO/IEC
 * All rights reserved.
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 * modification, are permitted provided that the following conditions are met:
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 *    this list of conditions and the following disclaimer.
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 /** \file     EncReshape.h
     \brief    encoder reshaping header and class (header)
 */

#ifndef __ENCRESHAPE__
#define __ENCRESHAPE__

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000
#include "CommonLib/Reshape.h"

//! \ingroup EncoderLib
//! \{

// ====================================================================================================================
// Class definition
// ====================================================================================================================
#if JVET_O0432_LMCS_ENCODER
struct SeqInfo
{
  double binVar[PIC_ANALYZE_CW_BINS];
  double binHist[PIC_ANALYZE_CW_BINS];
  double normVar[PIC_ANALYZE_CW_BINS];
  int    nonZeroCnt;
  double weightVar;
  double weightNorm;
  double minBinVar;
  double maxBinVar;
  double meanBinVar;
  double ratioStdU;
  double ratioStdV;
};
#endif

class EncReshape : public Reshape
{
private:
  bool                    m_srcReshaped;
  int                     m_picWidth;
  int                     m_picHeight;
  uint32_t                m_maxCUWidth;
  uint32_t                m_maxCUHeight;
  uint32_t                m_widthInCtus;
  uint32_t                m_heightInCtus;
  uint32_t                m_numCtuInFrame;
  bool                    m_exceedSTD;
  std::vector<uint32_t>   m_binImportance;
  int                     m_tcase;
  int                     m_rateAdpMode;
  bool                    m_useAdpCW;
  uint16_t                m_initCWAnalyze;
  ReshapeCW               m_reshapeCW;
  Pel                     m_cwLumaWeight[PIC_CODE_CW_BINS];
  double                  m_chromaWeight;
  int                     m_chromaAdj;
#if JVET_O0432_LMCS_ENCODER
  int                     m_binNum;
  SeqInfo                 m_srcSeqStats;
  SeqInfo                 m_rspSeqStats;
#endif
public:

  EncReshape();
  ~EncReshape();

  void createEnc( int picWidth, int picHeight, uint32_t maxCUWidth, uint32_t maxCUHeight, int bitDepth);
  void destroy();

  bool getSrcReshaped() { return m_srcReshaped; }
  void setSrcReshaped(bool b) { m_srcReshaped = b; }
#if JVET_O0432_LMCS_ENCODER
  void initSeqStats(SeqInfo &stats);
  void calcSeqStats(Picture *pcPic, SeqInfo &stats);
  void preAnalyzerLMCS(Picture *pcPic, const uint32_t signalType, const SliceType sliceType, const ReshapeCW& reshapeCW);
#else
  void preAnalyzerSDR(Picture *pcPic, const SliceType sliceType, const ReshapeCW& reshapeCW, bool isDualT);
#endif
  void preAnalyzerHDR(Picture *pcPic, const SliceType sliceType, const ReshapeCW& reshapeCW, bool isDualT);
  void bubbleSortDsd(double *array, int * idx, int n);
  void swap(int *xp, int *yp) { int temp = *xp;  *xp = *yp;  *yp = temp; }
  void swap(double *xp, double *yp) { double temp = *xp;  *xp = *yp;  *yp = temp; }
#if JVET_O0432_LMCS_ENCODER
  void cwPerturbation(int startBinIdx, int endBinIdx, uint16_t maxCW);
  void cwReduction(int startBinIdx, int endBinIdx);
  void deriveReshapeParametersSDR(bool *intraAdp, bool *interAdp);
#else
  void deriveReshapeParametersSDRfromStats(uint32_t *, double*, double* reshapeTH1, double* reshapeTH2, bool *intraAdp, bool *interAdp);
#endif
  void deriveReshapeParameters(double *array, int start, int end, ReshapeCW respCW, double &alpha, double &beta);
  void initLUTfromdQPModel();
#if JVET_O0432_LMCS_ENCODER
  void constructReshaperLMCS();
#else
  void constructReshaperSDR();
#endif
  ReshapeCW * getReshapeCW() { return &m_reshapeCW; }
  Pel * getWeightTable() { return m_cwLumaWeight; }
  double getCWeight() { return m_chromaWeight; }
#if JVET_O0272_LMCS_SIMP_INVERSE_MAPPING
  void adjustLmcsPivot();
#endif

#if ENABLE_SPLIT_PARALLELISM || ENABLE_WPP_PARALLELISM
  void copyState(const EncReshape& other);
#endif
};// END CLASS DEFINITION EncReshape

//! \}
#endif
