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/** \file     DecCu.h
    \brief    CU decoder class (header)
*/

#ifndef __DECCU__
#define __DECCU__

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000

#include "CABACReader.h"

#include "CommonLib/TrQuant.h"
#include "CommonLib/InterPrediction.h"
#include "CommonLib/IntraPrediction.h"
#include "CommonLib/Unit.h"
#include "CommonLib/Reshape.h"
//! \ingroup DecoderLib
//! \{

// ====================================================================================================================
// Class definition
// ====================================================================================================================

/// CU decoder class
class DecCu
{
public:
  DecCu();
  virtual ~DecCu();

  /// initialize access channels
  void  init              ( TrQuant* pcTrQuant, IntraPrediction* pcIntra, InterPrediction* pcInter );

  /// destroy internal buffers
  void  decompressCtu     ( CodingStructure& cs, const UnitArea& ctuArea );
  Reshape*          m_pcReshape;
  Reshape* getReshape     () { return m_pcReshape; }
  void initDecCuReshaper  ( Reshape* pcReshape, ChromaFormat chromaFormatIDC) ;
  void destoryDecCuReshaprBuf();

  /// reconstruct Ctu information
protected:
  void xIntraRecQT        ( CodingUnit&      cu, const ChannelType chType );
  void xIntraRecACTQT(CodingUnit&      cu);

  void xReconInter        ( CodingUnit&      cu );
  void xDecodeInterTexture( CodingUnit&      cu );
  void xReconIntraQT      ( CodingUnit&      cu );
#if !REMOVE_PCM
  void xFillPCMBuffer     ( CodingUnit&      cu );
#endif

  void xIntraRecBlk       ( TransformUnit&   tu, const ComponentID compID );
  void xIntraRecACTBlk(TransformUnit&   tu);
  void xDecodeInterTU     ( TransformUnit&   tu, const ComponentID compID );

  void xDeriveCUMV        ( CodingUnit&      cu );
  void xReconPLT          ( CodingUnit&      cu,       ComponentID compBegin, uint32_t numComp );
  PelStorage        *m_tmpStorageLCU;
private:
  TrQuant*          m_pcTrQuant;
  IntraPrediction*  m_pcIntraPred;
  InterPrediction*  m_pcInterPred;

  PelStorage        m_ciipBuffer;

  MotionInfo        m_SubPuMiBuf[(MAX_CU_SIZE * MAX_CU_SIZE) >> (MIN_CU_LOG2 << 1)];
#if MULTI_PASS_DMVR
  Mv                m_mvBufBDMVR[2][MAX_NUM_SUBCU_DMVR];
#endif
#if JVET_X0083_BM_AMVP_MERGE_MODE
 MvField            mvField_amList_dec[MAX_NUM_AMVP_CANDS_MAX_REF << 1];
#endif

  MergeCtx          m_geoMrgCtx;
#if JVET_W0097_GPM_MMVD_TM && TM_MRG
  MergeCtx          m_geoTmMrgCtx0, m_geoTmMrgCtx1;
#endif
};

//! \}

#endif

