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/** \file     TrQuant.h
    \brief    transform and quantization class (header)
*/

#pragma once

#include "CommonDef.h"
#include "Unit.h"
#include "ChromaFormat.h"
#include "Contexts.h"
#include "ContextModelling.h"

#include "UnitPartitioner.h"
#include "Quant.h"

namespace vvdec
{
using namespace x86_simd;

typedef void InvTrans(const TCoeff*, TCoeff*, int, int, int, int, bool, const TCoeff, const TCoeff);

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


/// transform and quantization class
class TrQuant : Quant
{
public:
  TrQuant( class InterPrediction* ip, const TrQuant* other = nullptr );

  // initialize class
  void init      ( const Picture *pic );
  void getTrTypes( const TransformUnit &tu, const ComponentID compID, int &trTypeHor, int &trTypeVer );

  void invLfnstNxN( int* src, int* dst, const uint32_t mode, const uint32_t index, const uint32_t size, int zeroOutSize );

  uint32_t getLFNSTIntraMode( int wideAngPredMode );
  bool     getTransposeFlag ( uint32_t intraMode  );

protected:

  void xInvLfnst      (       TransformUnit &tu, const ComponentID &compID );

public:

  void invTransformNxN(       TransformUnit &tu, const ComponentID &compID, PelBuf &pResi, const QpParam &cQPs );
  void invTransformICT( const TransformUnit &tu, PelBuf &resCb, PelBuf &resCr );



protected:
  bool     m_bEnc;
  bool     m_useTransformSkipFast;

  bool     m_rectTUs;

  bool     m_scalingListEnabledFlag;

  TCoeff  *m_blk;
  TCoeff  *m_tmp;
  TCoeff  *m_dqnt;

private:
  TCoeff   m_tempInMatrix [ 48 ];
  TCoeff   m_tempOutMatrix[ 48 ];
  static const int maxAbsIctMode = 3;
  void   (*m_invICTMem[1+2*maxAbsIctMode])(PelBuf&,PelBuf&);
  void  (**m_invICT)(PelBuf&,PelBuf&);
  void ( *m_invLfnstNxN )( int* src, int* dst, const uint32_t mode, const uint32_t index, const uint32_t size, int zeroOutSize );

  // dequantization
  void xDeQuant( const TransformUnit &tu,
                       CoeffBuf      &dstCoeff,
                 const ComponentID   &compID,
                 const QpParam       &cQP      );

  // inverse transform
  void xIT     ( const TransformUnit &tu, const ComponentID &compID, const CCoeffBuf &pCoeff, PelBuf &pResidual );

  // inverse skipping transform
  void xITransformSkip(
                 const CCoeffBuf     &plCoef,
                       PelBuf        &pResidual,
                 const TransformUnit &tu,
                 const ComponentID   &component);


#ifdef TARGET_SIMD_X86
  template<X86_VEXT vext>
  void _initTrQuantX86();
  void initTrQuantX86();
#endif
};// END CLASS DEFINITION TrQuant

}   // namespace vvdec