RdCostWeightPrediction.cpp

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/** \file     RdCostWeightPrediction.cpp
    \brief    RD cost computation class with Weighted-Prediction
*/

#include "RdCostWeightPrediction.h"

#include "RdCost.h"

#include <math.h>

static Distortion xCalcHADs2x2w( const WPScalingParam &wpCur, const Pel *piOrg, const Pel *piCurr, int iStrideOrg, int iStrideCur, int iStep );
static Distortion xCalcHADs4x4w( const WPScalingParam &wpCur, const Pel *piOrg, const Pel *piCurr, int iStrideOrg, int iStrideCur, int iStep );
static Distortion xCalcHADs8x8w( const WPScalingParam &wpCur, const Pel *piOrg, const Pel *piCurr, int iStrideOrg, int iStrideCur, int iStep );


// --------------------------------------------------------------------------------------------------------------------
// SAD
// --------------------------------------------------------------------------------------------------------------------
/** get weighted SAD cost
 * \param pcDtParam
 * \returns Distortion
 */
Distortion RdCostWeightPrediction::xGetSADw( const DistParam &rcDtParam )
{
  const Pel            *piOrg      = rcDtParam.org.buf;
  const Pel            *piCur      = rcDtParam.cur.buf;
  const int             iCols      = rcDtParam.org.width;
  const int             iStrideCur = rcDtParam.cur.stride;
  const int             iStrideOrg = rcDtParam.org.stride;
  const ComponentID     compID     = rcDtParam.compID;

  CHECK( compID >= MAX_NUM_COMPONENT, "Invalid component" );

  const WPScalingParam &wpCur      = rcDtParam.wpCur[compID];

  const int             w0         = wpCur.w;
  const int             offset     = wpCur.offset;