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/** \file     WeightPrediction.h
    \brief    weighting prediction class (header)
*/

#ifndef __WEIGHTPREDICTION__
#define __WEIGHTPREDICTION__

#include "CommonDef.h"
#include "Slice.h"
#include "Unit.h"
#include "Buffer.h"

// forward declarations
struct WPScalingParam;

// ====================================================================================================================
// Class definition
// ====================================================================================================================
/// weighting prediction class
class WeightPrediction
{
public:
  WeightPrediction();

  Void  getWpScaling(           const Slice                *slice,
                                const Int                  &iRefIdx0,
                                const Int                  &iRefIdx1,
                                      WPScalingParam      *&wp0,
                                      WPScalingParam      *&wp1,
                                const ComponentID           maxNumComp = MAX_NUM_COMPONENT );

  Void addWeightBi(             const CPelUnitBuf          &pcYuvSrc0,
                                const CPelUnitBuf          &pcYuvSrc1,
                                const ClpRngs              &clpRngs,
                                const WPScalingParam *const wp0,
                                const WPScalingParam *const wp1,
                                      PelUnitBuf           &rpcYuvDst,
                                const Bool                  bRoundLuma = true,
                                const ComponentID           maxNumComp = MAX_NUM_COMPONENT );

  Void  addWeightUni(           const CPelUnitBuf          &pcYuvSrc0,
                                const ClpRngs              &clpRngs,
                                const WPScalingParam *const wp0,
                                      PelUnitBuf           &rpcYuvDst,
                                const ComponentID           maxNumComp = MAX_NUM_COMPONENT);

  Void  xWeightedPredictionUni( const PredictionUnit       &pu,
                                const CPelUnitBuf          &pcYuvSrc,
                                const RefPicList           &eRefPicList,
                                      PelUnitBuf           &pcYuvPred,
                                const Int                   iRefIdx=-1,
                                const ComponentID           maxNumComp = MAX_NUM_COMPONENT);

  Void  xWeightedPredictionBi(  const PredictionUnit       &pu,
                                const CPelUnitBuf          &pcYuvSrc0,
                                const CPelUnitBuf          &pcYuvSrc1,
                                      PelUnitBuf           &pcYuvDst,
                                const ComponentID           maxNumComp = MAX_NUM_COMPONENT );
};

#endif
