source: 3DVCSoftware/branches/HTM-DEV-0.3-dev1/source/Lib/TLibCommon/TComPrediction.cpp @ 459

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/** \file     TComPrediction.cpp
    \brief    prediction class
*/

#include <memory.h>
#include "TComPrediction.h"

//! \ingroup TLibCommon
//! \{

// ====================================================================================================================
// Constructor / destructor / initialize
// ====================================================================================================================

TComPrediction::TComPrediction()
: m_pLumaRecBuffer(0)
, m_iLumaRecStride(0)
{
  m_piYuvExt = NULL;
}

TComPrediction::~TComPrediction()
{
  
  delete[] m_piYuvExt;

  m_acYuvPred[0].destroy();
  m_acYuvPred[1].destroy();

  m_cYuvPredTemp.destroy();

  if( m_pLumaRecBuffer )
  {
    delete [] m_pLumaRecBuffer;
  }
  
  Int i, j;
  for (i = 0; i < 4; i++)
  {
    for (j = 0; j < 4; j++)
    {
      m_filteredBlock[i][j].destroy();
    }
    m_filteredBlockTmp[i].destroy();
  }
}

Void TComPrediction::initTempBuff()
{
  if( m_piYuvExt == NULL )
  {
    Int extWidth  = MAX_CU_SIZE + 16; 
    Int extHeight = MAX_CU_SIZE + 1;
    Int i, j;
    for (i = 0; i < 4; i++)
    {
      m_filteredBlockTmp[i].create(extWidth, extHeight + 7);
      for (j = 0; j < 4; j++)
      {
        m_filteredBlock[i][j].create(extWidth, extHeight);
      }
    }
    m_iYuvExtHeight  = ((MAX_CU_SIZE + 2) << 4);
    m_iYuvExtStride = ((MAX_CU_SIZE  + 8) << 4);
    m_piYuvExt = new Int[ m_iYuvExtStride * m_iYuvExtHeight ];

    // new structure
    m_acYuvPred[0] .create( MAX_CU_SIZE, MAX_CU_SIZE );
    m_acYuvPred[1] .create( MAX_CU_SIZE, MAX_CU_SIZE );

    m_cYuvPredTemp.create( MAX_CU_SIZE, MAX_CU_SIZE );
  }

  if (m_iLumaRecStride != (MAX_CU_SIZE>>1) + 1)
  {
    m_iLumaRecStride =  (MAX_CU_SIZE>>1) + 1;
    if (!m_pLumaRecBuffer)
    {
      m_pLumaRecBuffer = new Pel[ m_iLumaRecStride * m_iLumaRecStride ];
    }
  }
}

// ====================================================================================================================
// Public member functions
// ====================================================================================================================

// Function for calculating DC value of the reference samples used in Intra prediction
Pel TComPrediction::predIntraGetPredValDC( Int* pSrc, Int iSrcStride, UInt iWidth, UInt iHeight, Bool bAbove, Bool bLeft )
{
  Int iInd, iSum = 0;
  Pel pDcVal;

  if (bAbove)
  {
    for (iInd = 0;iInd < iWidth;iInd++)
    {
      iSum += pSrc[iInd-iSrcStride];
    }
  }
  if (bLeft)
  {
    for (iInd = 0;iInd < iHeight;iInd++)
    {
      iSum += pSrc[iInd*iSrcStride-1];
    }
  }

  if (bAbove && bLeft)
  {
    pDcVal = (iSum + iWidth) / (iWidth + iHeight);
  }
  else if (bAbove)
  {
    pDcVal = (iSum + iWidth/2) / iWidth;
  }
  else if (bLeft)
  {
    pDcVal = (iSum + iHeight/2) / iHeight;
  }
  else
  {
    pDcVal = pSrc[-1]; // Default DC value already calculated and placed in the prediction array if no neighbors are available
  }
  
  return pDcVal;
}

// Function for deriving the angular Intra predictions

/** Function for deriving the simplified angular intra predictions.
 * \param pSrc pointer to reconstructed sample array
 * \param srcStride the stride of the reconstructed sample array
 * \param rpDst reference to pointer for the prediction sample array
 * \param dstStride the stride of the prediction sample array
 * \param width the width of the block
 * \param height the height of the block
 * \param dirMode the intra prediction mode index
 * \param blkAboveAvailable boolean indication if the block above is available
 * \param blkLeftAvailable boolean indication if the block to the left is available
 *
 * This function derives the prediction samples for the angular mode based on the prediction direction indicated by
 * the prediction mode index. The prediction direction is given by the displacement of the bottom row of the block and
 * the reference row above the block in the case of vertical prediction or displacement of the rightmost column
 * of the block and reference column left from the block in the case of the horizontal prediction. The displacement
 * is signalled at 1/32 pixel accuracy. When projection of the predicted pixel falls inbetween reference samples,
 * the predicted value for the pixel is linearly interpolated from the reference samples. All reference samples are taken
 * from the extended main reference.
 */
Void TComPrediction::xPredIntraAng(Int bitDepth, Int* pSrc, Int srcStride, Pel*& rpDst, Int dstStride, UInt width, UInt height, UInt dirMode, Bool blkAboveAvailable, Bool blkLeftAvailable, Bool bFilter )
{
  Int k,l;
  Int blkSize        = width;
  Pel* pDst          = rpDst;

  // Map the mode index to main prediction direction and angle
  assert( dirMode > 0 ); //no planar
  Bool modeDC        = dirMode < 2;
  Bool modeHor       = !modeDC && (dirMode < 18);
  Bool modeVer       = !modeDC && !modeHor;
  Int intraPredAngle = modeVer ? (Int)dirMode - VER_IDX : modeHor ? -((Int)dirMode - HOR_IDX) : 0;
  Int absAng         = abs(intraPredAngle);
  Int signAng        = intraPredAngle < 0 ? -1 : 1;

  // Set bitshifts and scale the angle parameter to block size
  Int angTable[9]    = {0,    2,    5,   9,  13,  17,  21,  26,  32};
  Int invAngTable[9] = {0, 4096, 1638, 910, 630, 482, 390, 315, 256}; // (256 * 32) / Angle
  Int invAngle       = invAngTable[absAng];
  absAng             = angTable[absAng];
  intraPredAngle     = signAng * absAng;

  // Do the DC prediction
  if (modeDC)
  {
    Pel dcval = predIntraGetPredValDC(pSrc, srcStride, width, height, blkAboveAvailable, blkLeftAvailable);

    for (k=0;k<blkSize;k++)
    {
      for (l=0;l<blkSize;l++)
      {
        pDst[k*dstStride+l] = dcval;
      }
    }
  }

  // Do angular predictions
  else
  {
    Pel* refMain;
    Pel* refSide;
    Pel  refAbove[2*MAX_CU_SIZE+1];
    Pel  refLeft[2*MAX_CU_SIZE+1];

    // Initialise the Main and Left reference array.
    if (intraPredAngle < 0)
    {
      for (k=0;k<blkSize+1;k++)
      {
        refAbove[k+blkSize-1] = pSrc[k-srcStride-1];
      }
      for (k=0;k<blkSize+1;k++)
      {
        refLeft[k+blkSize-1] = pSrc[(k-1)*srcStride-1];
      }
      refMain = (modeVer ? refAbove : refLeft) + (blkSize-1);
      refSide = (modeVer ? refLeft : refAbove) + (blkSize-1);

      // Extend the Main reference to the left.
      Int invAngleSum    = 128;       // rounding for (shift by 8)
      for (k=-1; k>blkSize*intraPredAngle>>5; k--)
      {
        invAngleSum += invAngle;
        refMain[k] = refSide[invAngleSum>>8];
      }
    }
    else
    {
      for (k=0;k<2*blkSize+1;k++)
      {
        refAbove[k] = pSrc[k-srcStride-1];
      }
      for (k=0;k<2*blkSize+1;k++)
      {
        refLeft[k] = pSrc[(k-1)*srcStride-1];
      }
      refMain = modeVer ? refAbove : refLeft;
      refSide = modeVer ? refLeft  : refAbove;
    }

    if (intraPredAngle == 0)
    {
      for (k=0;k<blkSize;k++)
      {
        for (l=0;l<blkSize;l++)
        {
          pDst[k*dstStride+l] = refMain[l+1];
        }
      }

      if ( bFilter )
      {
        for (k=0;k<blkSize;k++)
        {
          pDst[k*dstStride] = Clip3(0, (1<<bitDepth)-1, pDst[k*dstStride] + (( refSide[k+1] - refSide[0] ) >> 1) );
        }
      }
    }
    else
    {
      Int deltaPos=0;
      Int deltaInt;
      Int deltaFract;
      Int refMainIndex;

      for (k=0;k<blkSize;k++)
      {
        deltaPos += intraPredAngle;
        deltaInt   = deltaPos >> 5;
        deltaFract = deltaPos & (32 - 1);

        if (deltaFract)
        {
          // Do linear filtering
          for (l=0;l<blkSize;l++)
          {
            refMainIndex        = l+deltaInt+1;
            pDst[k*dstStride+l] = (Pel) ( ((32-deltaFract)*refMain[refMainIndex]+deltaFract*refMain[refMainIndex+1]+16) >> 5 );
          }
        }
        else
        {
          // Just copy the integer samples
          for (l=0;l<blkSize;l++)
          {
            pDst[k*dstStride+l] = refMain[l+deltaInt+1];
          }
        }
      }
    }

    // Flip the block if this is the horizontal mode
    if (modeHor)
    {
      Pel  tmp;
      for (k=0;k<blkSize-1;k++)
      {
        for (l=k+1;l<blkSize;l++)
        {
          tmp                 = pDst[k*dstStride+l];
          pDst[k*dstStride+l] = pDst[l*dstStride+k];
          pDst[l*dstStride+k] = tmp;
        }
      }
    }
  }
}

Void TComPrediction::predIntraLumaAng(TComPattern* pcTComPattern, UInt uiDirMode, Pel* piPred, UInt uiStride, Int iWidth, Int iHeight, Bool bAbove, Bool bLeft )
{
  Pel *pDst = piPred;
  Int *ptrSrc;

  assert( g_aucConvertToBit[ iWidth ] >= 0 ); //   4x  4
  assert( g_aucConvertToBit[ iWidth ] <= 5 ); // 128x128
  assert( iWidth == iHeight  );

  ptrSrc = pcTComPattern->getPredictorPtr( uiDirMode, g_aucConvertToBit[ iWidth ] + 2, m_piYuvExt );

  // get starting pixel in block
  Int sw = 2 * iWidth + 1;

  // Create the prediction
  if ( uiDirMode == PLANAR_IDX )
  {
    xPredIntraPlanar( ptrSrc+sw+1, sw, pDst, uiStride, iWidth, iHeight );
  }
  else
  {
    if ( (iWidth > 16) || (iHeight > 16) )
    {
      xPredIntraAng(g_bitDepthY, ptrSrc+sw+1, sw, pDst, uiStride, iWidth, iHeight, uiDirMode, bAbove, bLeft, false );
    }
    else
    {
      xPredIntraAng(g_bitDepthY, ptrSrc+sw+1, sw, pDst, uiStride, iWidth, iHeight, uiDirMode, bAbove, bLeft, true );

      if( (uiDirMode == DC_IDX ) && bAbove && bLeft )
      {
        xDCPredFiltering( ptrSrc+sw+1, sw, pDst, uiStride, iWidth, iHeight);
      }
    }
  }
}

// Angular chroma
Void TComPrediction::predIntraChromaAng( Int* piSrc, UInt uiDirMode, Pel* piPred, UInt uiStride, Int iWidth, Int iHeight, Bool bAbove, Bool bLeft )
{
  Pel *pDst = piPred;
  Int *ptrSrc = piSrc;

  // get starting pixel in block
  Int sw = 2 * iWidth + 1;

  if ( uiDirMode == PLANAR_IDX )
  {
    xPredIntraPlanar( ptrSrc+sw+1, sw, pDst, uiStride, iWidth, iHeight );
  }
  else
  {
    // Create the prediction
    xPredIntraAng(g_bitDepthC, ptrSrc+sw+1, sw, pDst, uiStride, iWidth, iHeight, uiDirMode, bAbove, bLeft, false );
  }
}

#if H_3D_DIM
Void TComPrediction::predIntraLumaDepth( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiIntraMode, Pel* piPred, UInt uiStride, Int iWidth, Int iHeight, Bool bFastEnc )
{
  assert( iWidth == iHeight  );
  assert( iWidth >= DIM_MIN_SIZE && iWidth <= DIM_MAX_SIZE );
  assert( isDimMode( uiIntraMode ) );

  UInt dimType    = getDimType  ( uiIntraMode );
  Bool dimDeltaDC = isDimDeltaDC( uiIntraMode );    
  Bool isDmmMode  = (dimType <  DMM_NUM_TYPE);
  Bool isRbcMode  = (dimType == RBC_IDX);

  Bool* biSegPattern  = NULL;
  UInt  patternStride = 0;

  // get partiton
#if H_3D_DIM_DMM
  TComWedgelet* dmmSegmentation = NULL;
  if( isDmmMode )
  {
    switch( dimType )
    {
    case( DMM1_IDX ): 
      {
        dmmSegmentation = &(g_dmmWedgeLists[ g_aucConvertToBit[iWidth] ][ pcCU->getDmmWedgeTabIdx( dimType, uiAbsPartIdx ) ]);
      } break;
    case( DMM2_IDX ):
      {
        UInt uiTabIdx = 0;
        if( bFastEnc ) { uiTabIdx = pcCU->getDmmWedgeTabIdx( dimType, uiAbsPartIdx ); }
        else
        {
          uiTabIdx = xPredWedgeFromIntra( pcCU, uiAbsPartIdx, iWidth, iHeight, pcCU->getDmm2DeltaEnd( uiAbsPartIdx ) );
          pcCU->setDmmWedgeTabIdxSubParts( uiTabIdx, dimType, uiAbsPartIdx, (pcCU->getDepth(0) + (pcCU->getPartitionSize(0) == SIZE_2Nx2N ? 0 : 1)) );
        }
        dmmSegmentation = &(g_dmmWedgeLists[ g_aucConvertToBit[iWidth] ][ uiTabIdx ]);
      } break;
    case( DMM3_IDX ): 
      {
        UInt uiTabIdx = 0;
        if( bFastEnc ) { uiTabIdx = pcCU->getDmmWedgeTabIdx( dimType, uiAbsPartIdx ); }
        else
        {
          uiTabIdx = xPredWedgeFromTex( pcCU, uiAbsPartIdx, iWidth, iHeight, pcCU->getDmm3IntraTabIdx( uiAbsPartIdx ) );
          pcCU->setDmmWedgeTabIdxSubParts( uiTabIdx, dimType, uiAbsPartIdx, (pcCU->getDepth(0) + (pcCU->getPartitionSize(0) == SIZE_2Nx2N ? 0 : 1)) );
        }
        dmmSegmentation = &(g_dmmWedgeLists[ g_aucConvertToBit[iWidth] ][ uiTabIdx ]);
      } break;
    case( DMM4_IDX ): 
      {
        dmmSegmentation = new TComWedgelet( iWidth, iHeight );
        xPredContourFromTex( pcCU, uiAbsPartIdx, iWidth, iHeight, dmmSegmentation );
      } break;
    default: assert(0);
    }
    assert( dmmSegmentation );
    biSegPattern  = dmmSegmentation->getPattern();
    patternStride = dmmSegmentation->getStride ();
  }
#endif
#if H_3D_DIM_RBC
  if( isRbcMode )
  {
    biSegPattern  = pcCU->getEdgePartition( uiAbsPartIdx );
    patternStride = iWidth;
  }
#endif

  // get predicted partition values
  assert( biSegPattern );
  Int* piMask = NULL;
  if( isDmmMode ) piMask = pcCU->getPattern()->getAdiOrgBuf( iWidth, iHeight, m_piYuvExt ); // no filtering for DMM
  else            piMask = pcCU->getPattern()->getPredictorPtr( 0, g_aucConvertToBit[ iWidth ] + 2, m_piYuvExt );
  assert( piMask );
  Int maskStride = 2*iWidth + 1;  
  Int* ptrSrc = piMask+maskStride+1;
  Pel predDC1 = 0; Pel predDC2 = 0;
  xPredBiSegDCs( ptrSrc, maskStride, biSegPattern, patternStride, predDC1, predDC2 );

  // set segment values with deltaDC offsets
  Pel segDC1 = 0;
  Pel segDC2 = 0;
  if( dimDeltaDC )
  {
    Pel deltaDC1 = pcCU->getDimDeltaDC( dimType, 0, uiAbsPartIdx );
    Pel deltaDC2 = pcCU->getDimDeltaDC( dimType, 1, uiAbsPartIdx );
#if H_3D_DIM_DMM
    if( isDmmMode )
    {
#if H_3D_DIM_DLT
      segDC1 = GetIdx2DepthValue( GetDepthValue2Idx( predDC1 ) + deltaDC1 );
      segDC2 = GetIdx2DepthValue( GetDepthValue2Idx( predDC2 ) + deltaDC2 );
#else
      segDC1 = ClipY( predDC1 + deltaDC1 );
      segDC2 = ClipY( predDC2 + deltaDC2 );
#endif
    }
#endif
#if H_3D_DIM_RBC
    if( isRbcMode )
    {
      xDeltaDCQuantScaleUp( pcCU, deltaDC1 );
      xDeltaDCQuantScaleUp( pcCU, deltaDC2 );
      segDC1 = ClipY( predDC1 + deltaDC1 );
      segDC2 = ClipY( predDC2 + deltaDC2 );
    }
#endif
  }
  else
  {
    segDC1 = predDC1;
    segDC2 = predDC2;
  }

  // set prediction signal
  Pel* pDst = piPred;
  xAssignBiSegDCs( pDst, uiStride, biSegPattern, patternStride, segDC1, segDC2 );

#if H_3D_DIM_DMM
  if( dimType == DMM4_IDX ) { dmmSegmentation->destroy(); delete dmmSegmentation; }
#endif
}
#endif

/** Function for checking identical motion.
 * \param TComDataCU* pcCU
 * \param UInt PartAddr
 */
Bool TComPrediction::xCheckIdenticalMotion ( TComDataCU* pcCU, UInt PartAddr )
{
  if( pcCU->getSlice()->isInterB() && !pcCU->getSlice()->getPPS()->getWPBiPred() )
  {
    if( pcCU->getCUMvField(REF_PIC_LIST_0)->getRefIdx(PartAddr) >= 0 && pcCU->getCUMvField(REF_PIC_LIST_1)->getRefIdx(PartAddr) >= 0)
    {
      Int RefPOCL0 = pcCU->getSlice()->getRefPic(REF_PIC_LIST_0, pcCU->getCUMvField(REF_PIC_LIST_0)->getRefIdx(PartAddr))->getPOC();
      Int RefPOCL1 = pcCU->getSlice()->getRefPic(REF_PIC_LIST_1, pcCU->getCUMvField(REF_PIC_LIST_1)->getRefIdx(PartAddr))->getPOC();
      if(RefPOCL0 == RefPOCL1 && pcCU->getCUMvField(REF_PIC_LIST_0)->getMv(PartAddr) == pcCU->getCUMvField(REF_PIC_LIST_1)->getMv(PartAddr))
      {
        return true;
      }
    }
  }
  return false;
}


Void TComPrediction::motionCompensation ( TComDataCU* pcCU, TComYuv* pcYuvPred, RefPicList eRefPicList, Int iPartIdx )
{
  Int         iWidth;
  Int         iHeight;
  UInt        uiPartAddr;

  if ( iPartIdx >= 0 )
  {
    pcCU->getPartIndexAndSize( iPartIdx, uiPartAddr, iWidth, iHeight );
    if ( eRefPicList != REF_PIC_LIST_X )
    {
      if( pcCU->getSlice()->getPPS()->getUseWP())
      {
        xPredInterUni (pcCU, uiPartAddr, iWidth, iHeight, eRefPicList, pcYuvPred, true );
      }
      else
      {
        xPredInterUni (pcCU, uiPartAddr, iWidth, iHeight, eRefPicList, pcYuvPred );
      }
      if ( pcCU->getSlice()->getPPS()->getUseWP() )
      {
        xWeightedPredictionUni( pcCU, pcYuvPred, uiPartAddr, iWidth, iHeight, eRefPicList, pcYuvPred );
      }
    }
    else
    {
      if ( xCheckIdenticalMotion( pcCU, uiPartAddr ) )
      {
        xPredInterUni (pcCU, uiPartAddr, iWidth, iHeight, REF_PIC_LIST_0, pcYuvPred );
      }
      else
      {
        xPredInterBi  (pcCU, uiPartAddr, iWidth, iHeight, pcYuvPred );
      }
    }
    return;
  }

  for ( iPartIdx = 0; iPartIdx < pcCU->getNumPartInter(); iPartIdx++ )
  {
    pcCU->getPartIndexAndSize( iPartIdx, uiPartAddr, iWidth, iHeight );

    if ( eRefPicList != REF_PIC_LIST_X )
    {
      if( pcCU->getSlice()->getPPS()->getUseWP())
      {
        xPredInterUni (pcCU, uiPartAddr, iWidth, iHeight, eRefPicList, pcYuvPred, true );
      }
      else
      {
        xPredInterUni (pcCU, uiPartAddr, iWidth, iHeight, eRefPicList, pcYuvPred );
      }
      if ( pcCU->getSlice()->getPPS()->getUseWP() )
      {
        xWeightedPredictionUni( pcCU, pcYuvPred, uiPartAddr, iWidth, iHeight, eRefPicList, pcYuvPred );
      }
    }
    else
    {
      if ( xCheckIdenticalMotion( pcCU, uiPartAddr ) )
      {
        xPredInterUni (pcCU, uiPartAddr, iWidth, iHeight, REF_PIC_LIST_0, pcYuvPred );
      }
      else
      {
        xPredInterBi  (pcCU, uiPartAddr, iWidth, iHeight, pcYuvPred );
      }
    }
  }
  return;
}

Void TComPrediction::xPredInterUni ( TComDataCU* pcCU, UInt uiPartAddr, Int iWidth, Int iHeight, RefPicList eRefPicList, TComYuv*& rpcYuvPred, Bool bi )
{
  Int         iRefIdx     = pcCU->getCUMvField( eRefPicList )->getRefIdx( uiPartAddr );           assert (iRefIdx >= 0);
  TComMv      cMv         = pcCU->getCUMvField( eRefPicList )->getMv( uiPartAddr );
  pcCU->clipMv(cMv);
  xPredInterLumaBlk  ( pcCU, pcCU->getSlice()->getRefPic( eRefPicList, iRefIdx )->getPicYuvRec(), uiPartAddr, &cMv, iWidth, iHeight, rpcYuvPred, bi );
  xPredInterChromaBlk( pcCU, pcCU->getSlice()->getRefPic( eRefPicList, iRefIdx )->getPicYuvRec(), uiPartAddr, &cMv, iWidth, iHeight, rpcYuvPred, bi );
}

Void TComPrediction::xPredInterBi ( TComDataCU* pcCU, UInt uiPartAddr, Int iWidth, Int iHeight, TComYuv*& rpcYuvPred )
{
  TComYuv* pcMbYuv;
  Int      iRefIdx[2] = {-1, -1};

  for ( Int iRefList = 0; iRefList < 2; iRefList++ )
  {
    RefPicList eRefPicList = (iRefList ? REF_PIC_LIST_1 : REF_PIC_LIST_0);
    iRefIdx[iRefList] = pcCU->getCUMvField( eRefPicList )->getRefIdx( uiPartAddr );

    if ( iRefIdx[iRefList] < 0 )
    {
      continue;
    }

    assert( iRefIdx[iRefList] < pcCU->getSlice()->getNumRefIdx(eRefPicList) );

    pcMbYuv = &m_acYuvPred[iRefList];
    if( pcCU->getCUMvField( REF_PIC_LIST_0 )->getRefIdx( uiPartAddr ) >= 0 && pcCU->getCUMvField( REF_PIC_LIST_1 )->getRefIdx( uiPartAddr ) >= 0 )
    {
      xPredInterUni ( pcCU, uiPartAddr, iWidth, iHeight, eRefPicList, pcMbYuv, true );
    }
    else
    {
      if ( ( pcCU->getSlice()->getPPS()->getUseWP()       && pcCU->getSlice()->getSliceType() == P_SLICE ) || 
           ( pcCU->getSlice()->getPPS()->getWPBiPred() && pcCU->getSlice()->getSliceType() == B_SLICE ) )
      {
        xPredInterUni ( pcCU, uiPartAddr, iWidth, iHeight, eRefPicList, pcMbYuv, true );
      }
      else
      {
        xPredInterUni ( pcCU, uiPartAddr, iWidth, iHeight, eRefPicList, pcMbYuv );
      }
    }
  }

  if ( pcCU->getSlice()->getPPS()->getWPBiPred() && pcCU->getSlice()->getSliceType() == B_SLICE  )
  {
    xWeightedPredictionBi( pcCU, &m_acYuvPred[0], &m_acYuvPred[1], iRefIdx[0], iRefIdx[1], uiPartAddr, iWidth, iHeight, rpcYuvPred );
  }  
  else if ( pcCU->getSlice()->getPPS()->getUseWP() && pcCU->getSlice()->getSliceType() == P_SLICE )
  {
    xWeightedPredictionUni( pcCU, &m_acYuvPred[0], uiPartAddr, iWidth, iHeight, REF_PIC_LIST_0, rpcYuvPred ); 
  }
  else
  {
    xWeightedAverage( &m_acYuvPred[0], &m_acYuvPred[1], iRefIdx[0], iRefIdx[1], uiPartAddr, iWidth, iHeight, rpcYuvPred );
  }
}

/**
 * \brief Generate motion-compensated luma block
 *
 * \param cu       Pointer to current CU
 * \param refPic   Pointer to reference picture
 * \param partAddr Address of block within CU
 * \param mv       Motion vector
 * \param width    Width of block
 * \param height   Height of block
 * \param dstPic   Pointer to destination picture
 * \param bi       Flag indicating whether bipred is used
 */
Void TComPrediction::xPredInterLumaBlk( TComDataCU *cu, TComPicYuv *refPic, UInt partAddr, TComMv *mv, Int width, Int height, TComYuv *&dstPic, Bool bi )
{
  Int refStride = refPic->getStride();  
  Int refOffset = ( mv->getHor() >> 2 ) + ( mv->getVer() >> 2 ) * refStride;
  Pel *ref      = refPic->getLumaAddr( cu->getAddr(), cu->getZorderIdxInCU() + partAddr ) + refOffset;
  
  Int dstStride = dstPic->getStride();
  Pel *dst      = dstPic->getLumaAddr( partAddr );
  
  Int xFrac = mv->getHor() & 0x3;
  Int yFrac = mv->getVer() & 0x3;

  if ( yFrac == 0 )
  {
    m_if.filterHorLuma( ref, refStride, dst, dstStride, width, height, xFrac,       !bi );
  }
  else if ( xFrac == 0 )
  {
    m_if.filterVerLuma( ref, refStride, dst, dstStride, width, height, yFrac, true, !bi );
  }
  else
  {
    Int tmpStride = m_filteredBlockTmp[0].getStride();
    Short *tmp    = m_filteredBlockTmp[0].getLumaAddr();

    Int filterSize = NTAPS_LUMA;
    Int halfFilterSize = ( filterSize >> 1 );

    m_if.filterHorLuma(ref - (halfFilterSize-1)*refStride, refStride, tmp, tmpStride, width, height+filterSize-1, xFrac, false     );
    m_if.filterVerLuma(tmp + (halfFilterSize-1)*tmpStride, tmpStride, dst, dstStride, width, height,              yFrac, false, !bi);    
  }
}

/**
 * \brief Generate motion-compensated chroma block
 *
 * \param cu       Pointer to current CU
 * \param refPic   Pointer to reference picture
 * \param partAddr Address of block within CU
 * \param mv       Motion vector
 * \param width    Width of block
 * \param height   Height of block
 * \param dstPic   Pointer to destination picture
 * \param bi       Flag indicating whether bipred is used
 */
Void TComPrediction::xPredInterChromaBlk( TComDataCU *cu, TComPicYuv *refPic, UInt partAddr, TComMv *mv, Int width, Int height, TComYuv *&dstPic, Bool bi )
{
  Int     refStride  = refPic->getCStride();
  Int     dstStride  = dstPic->getCStride();
  
  Int     refOffset  = (mv->getHor() >> 3) + (mv->getVer() >> 3) * refStride;
  
  Pel*    refCb     = refPic->getCbAddr( cu->getAddr(), cu->getZorderIdxInCU() + partAddr ) + refOffset;
  Pel*    refCr     = refPic->getCrAddr( cu->getAddr(), cu->getZorderIdxInCU() + partAddr ) + refOffset;
  
  Pel* dstCb = dstPic->getCbAddr( partAddr );
  Pel* dstCr = dstPic->getCrAddr( partAddr );
  
  Int     xFrac  = mv->getHor() & 0x7;
  Int     yFrac  = mv->getVer() & 0x7;
  UInt    cxWidth  = width  >> 1;
  UInt    cxHeight = height >> 1;
  
  Int     extStride = m_filteredBlockTmp[0].getStride();
  Short*  extY      = m_filteredBlockTmp[0].getLumaAddr();
  
  Int filterSize = NTAPS_CHROMA;
  
  Int halfFilterSize = (filterSize>>1);
  
  if ( yFrac == 0 )
  {
    m_if.filterHorChroma(refCb, refStride, dstCb,  dstStride, cxWidth, cxHeight, xFrac, !bi);    
    m_if.filterHorChroma(refCr, refStride, dstCr,  dstStride, cxWidth, cxHeight, xFrac, !bi);    
  }
  else if ( xFrac == 0 )
  {
    m_if.filterVerChroma(refCb, refStride, dstCb, dstStride, cxWidth, cxHeight, yFrac, true, !bi);    
    m_if.filterVerChroma(refCr, refStride, dstCr, dstStride, cxWidth, cxHeight, yFrac, true, !bi);    
  }
  else
  {
    m_if.filterHorChroma(refCb - (halfFilterSize-1)*refStride, refStride, extY,  extStride, cxWidth, cxHeight+filterSize-1, xFrac, false);
    m_if.filterVerChroma(extY  + (halfFilterSize-1)*extStride, extStride, dstCb, dstStride, cxWidth, cxHeight  , yFrac, false, !bi);
    
    m_if.filterHorChroma(refCr - (halfFilterSize-1)*refStride, refStride, extY,  extStride, cxWidth, cxHeight+filterSize-1, xFrac, false);
    m_if.filterVerChroma(extY  + (halfFilterSize-1)*extStride, extStride, dstCr, dstStride, cxWidth, cxHeight  , yFrac, false, !bi);    
  }
}

Void TComPrediction::xWeightedAverage( TComYuv* pcYuvSrc0, TComYuv* pcYuvSrc1, Int iRefIdx0, Int iRefIdx1, UInt uiPartIdx, Int iWidth, Int iHeight, TComYuv*& rpcYuvDst )
{
  if( iRefIdx0 >= 0 && iRefIdx1 >= 0 )
  {
    rpcYuvDst->addAvg( pcYuvSrc0, pcYuvSrc1, uiPartIdx, iWidth, iHeight );
  }
  else if ( iRefIdx0 >= 0 && iRefIdx1 <  0 )
  {
    pcYuvSrc0->copyPartToPartYuv( rpcYuvDst, uiPartIdx, iWidth, iHeight );
  }
  else if ( iRefIdx0 <  0 && iRefIdx1 >= 0 )
  {
    pcYuvSrc1->copyPartToPartYuv( rpcYuvDst, uiPartIdx, iWidth, iHeight );
  }
}

// AMVP
Void TComPrediction::getMvPredAMVP( TComDataCU* pcCU, UInt uiPartIdx, UInt uiPartAddr, RefPicList eRefPicList, TComMv& rcMvPred )
{
  AMVPInfo* pcAMVPInfo = pcCU->getCUMvField(eRefPicList)->getAMVPInfo();
  if( pcAMVPInfo->iN <= 1 )
  {
    rcMvPred = pcAMVPInfo->m_acMvCand[0];

    pcCU->setMVPIdxSubParts( 0, eRefPicList, uiPartAddr, uiPartIdx, pcCU->getDepth(uiPartAddr));
    pcCU->setMVPNumSubParts( pcAMVPInfo->iN, eRefPicList, uiPartAddr, uiPartIdx, pcCU->getDepth(uiPartAddr));
    return;
  }

  assert(pcCU->getMVPIdx(eRefPicList,uiPartAddr) >= 0);
  rcMvPred = pcAMVPInfo->m_acMvCand[pcCU->getMVPIdx(eRefPicList,uiPartAddr)];
  return;
}

/** Function for deriving planar intra prediction.
 * \param pSrc pointer to reconstructed sample array
 * \param srcStride the stride of the reconstructed sample array
 * \param rpDst reference to pointer for the prediction sample array
 * \param dstStride the stride of the prediction sample array
 * \param width the width of the block
 * \param height the height of the block
 *
 * This function derives the prediction samples for planar mode (intra coding).
 */
Void TComPrediction::xPredIntraPlanar( Int* pSrc, Int srcStride, Pel* rpDst, Int dstStride, UInt width, UInt height )
{
  assert(width == height);

  Int k, l, bottomLeft, topRight;
  Int horPred;
  Int leftColumn[MAX_CU_SIZE], topRow[MAX_CU_SIZE], bottomRow[MAX_CU_SIZE], rightColumn[MAX_CU_SIZE];
  UInt blkSize = width;
  UInt offset2D = width;
  UInt shift1D = g_aucConvertToBit[ width ] + 2;
  UInt shift2D = shift1D + 1;

  // Get left and above reference column and row
  for(k=0;k<blkSize+1;k++)
  {
    topRow[k] = pSrc[k-srcStride];
    leftColumn[k] = pSrc[k*srcStride-1];
  }

  // Prepare intermediate variables used in interpolation
  bottomLeft = leftColumn[blkSize];
  topRight   = topRow[blkSize];
  for (k=0;k<blkSize;k++)
  {
    bottomRow[k]   = bottomLeft - topRow[k];
    rightColumn[k] = topRight   - leftColumn[k];
    topRow[k]      <<= shift1D;
    leftColumn[k]  <<= shift1D;
  }

  // Generate prediction signal
  for (k=0;k<blkSize;k++)
  {
    horPred = leftColumn[k] + offset2D;
    for (l=0;l<blkSize;l++)
    {
      horPred += rightColumn[k];
      topRow[l] += bottomRow[l];
      rpDst[k*dstStride+l] = ( (horPred + topRow[l]) >> shift2D );
    }
  }
}

/** Function for filtering intra DC predictor.
 * \param pSrc pointer to reconstructed sample array
 * \param iSrcStride the stride of the reconstructed sample array
 * \param rpDst reference to pointer for the prediction sample array
 * \param iDstStride the stride of the prediction sample array
 * \param iWidth the width of the block
 * \param iHeight the height of the block
 *
 * This function performs filtering left and top edges of the prediction samples for DC mode (intra coding).
 */
Void TComPrediction::xDCPredFiltering( Int* pSrc, Int iSrcStride, Pel*& rpDst, Int iDstStride, Int iWidth, Int iHeight )
{
  Pel* pDst = rpDst;
  Int x, y, iDstStride2, iSrcStride2;

  // boundary pixels processing
  pDst[0] = (Pel)((pSrc[-iSrcStride] + pSrc[-1] + 2 * pDst[0] + 2) >> 2);

  for ( x = 1; x < iWidth; x++ )
  {
    pDst[x] = (Pel)((pSrc[x - iSrcStride] +  3 * pDst[x] + 2) >> 2);
  }

  for ( y = 1, iDstStride2 = iDstStride, iSrcStride2 = iSrcStride-1; y < iHeight; y++, iDstStride2+=iDstStride, iSrcStride2+=iSrcStride )
  {
    pDst[iDstStride2] = (Pel)((pSrc[iSrcStride2] + 3 * pDst[iDstStride2] + 2) >> 2);
  }

  return;
}

#if H_3D_DIM
Void TComPrediction::xPredBiSegDCs( Int* ptrSrc, UInt srcStride, Bool* biSegPattern, Int patternStride, Pel& predDC1, Pel& predDC2 )
{
  Int  refDC1, refDC2;
  const Int  iTR = (   patternStride - 1        ) - srcStride;
  const Int  iTM = ( ( patternStride - 1 ) >> 1 ) - srcStride;
  const Int  iLB = (   patternStride - 1        ) * srcStride - 1;
  const Int  iLM = ( ( patternStride - 1 ) >> 1 ) * srcStride - 1;

  Bool bL = ( biSegPattern[0] != biSegPattern[(patternStride-1)*patternStride] );
  Bool bT = ( biSegPattern[0] != biSegPattern[(patternStride-1)]               );

  if( bL == bT )
  {
    refDC1 = bL ? ( ptrSrc[iTR] + ptrSrc[iLB] )>>1 : 1<<( g_bitDepthY - 1 );
    refDC2 =      ( ptrSrc[ -1] + ptrSrc[-(Int)srcStride] )>>1;
  }
  else
  {
    refDC1 = bL ? ptrSrc[iLB] : ptrSrc[iTR];
    refDC2 = bL ? ptrSrc[iTM] : ptrSrc[iLM];
  }

  predDC1 = biSegPattern[0] ? refDC1 : refDC2;
  predDC2 = biSegPattern[0] ? refDC2 : refDC1;
}

Void TComPrediction::xAssignBiSegDCs( Pel* ptrDst, UInt dstStride, Bool* biSegPattern, Int patternStride, Pel valDC1, Pel valDC2 )
{
  if( dstStride == patternStride )
  {
    for( UInt k = 0; k < (patternStride * patternStride); k++ )
    {
      if( true == biSegPattern[k] ) { ptrDst[k] = valDC2; }
      else                          { ptrDst[k] = valDC1; }
    }
  }
  else
  {
    Pel* piTemp = ptrDst;
    for( UInt uiY = 0; uiY < patternStride; uiY++ )
    {
      for( UInt uiX = 0; uiX < patternStride; uiX++ )
      {
        if( true == biSegPattern[uiX] ) { piTemp[uiX] = valDC2; }
        else                            { piTemp[uiX] = valDC1; }
      }
      piTemp       += dstStride;
      biSegPattern += patternStride;
    }
  }
}

#if H_3D_DIM_DMM
UInt TComPrediction::xPredWedgeFromIntra( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiWidth, UInt uiHeight, Int iDeltaEnd )
{
  UInt uiThisBlockSize = uiWidth;

  TComDataCU* pcTempCU;
  UInt        uiTempPartIdx;
  // 1st: try continue above wedgelet
  pcTempCU = pcCU->getPUAbove( uiTempPartIdx, pcCU->getZorderIdxInCU() + uiAbsPartIdx );
  if( pcTempCU && isDimMode( pcTempCU->getLumaIntraDir( uiTempPartIdx ) ) )
  {
    UInt dimType =  getDimType( pcTempCU->getLumaIntraDir( uiTempPartIdx ) );
    if( DMM1_IDX == dimType || DMM2_IDX == dimType || DMM3_IDX == dimType )
    {
      // get offset between current and reference block
      UInt uiOffsetX = 0, uiOffsetY = 0;
      xGetBlockOffset( pcCU, uiAbsPartIdx, pcTempCU, uiTempPartIdx, uiOffsetX, uiOffsetY );

      // get reference wedgelet
      WedgeList* pacWedgeList = &g_dmmWedgeLists[(g_aucConvertToBit[(pcTempCU->getWidth( uiTempPartIdx )>>((pcTempCU->getPartitionSize( uiTempPartIdx ) == SIZE_NxN) ? 1 : 0))])];
      TComWedgelet* pcRefWedgelet = &(pacWedgeList->at( pcTempCU->getDmmWedgeTabIdx( dimType, uiTempPartIdx ) ) );

      // find wedgelet, if direction is suitable for continue wedge
      if( pcRefWedgelet->checkPredDirAbovePossible( uiThisBlockSize, uiOffsetX ) )
      {
        UChar uhContD_Xs, uhContD_Ys, uhContD_Xe, uhContD_Ye;
        pcRefWedgelet->getPredDirStartEndAbove( uhContD_Xs, uhContD_Ys, uhContD_Xe, uhContD_Ye, uiThisBlockSize, uiOffsetX, iDeltaEnd );
        return xGetWedgePatternIdx( uiThisBlockSize, uhContD_Xs, uhContD_Ys, uhContD_Xe, uhContD_Ye );
      }
    }
  }

  // 2nd: try continue left wedglelet
  pcTempCU = pcCU->getPULeft( uiTempPartIdx, pcCU->getZorderIdxInCU() + uiAbsPartIdx );
  if( pcTempCU && isDimMode( pcTempCU->getLumaIntraDir( uiTempPartIdx ) ) )
  {
    UInt dimType = getDimType( pcTempCU->getLumaIntraDir( uiTempPartIdx ) );
    if( DMM1_IDX == dimType || DMM2_IDX == dimType || DMM3_IDX == dimType )
    {
      // get offset between current and reference block
      UInt uiOffsetX = 0, uiOffsetY = 0;
      xGetBlockOffset( pcCU, uiAbsPartIdx, pcTempCU, uiTempPartIdx, uiOffsetX, uiOffsetY );

      // get reference wedgelet
      WedgeList* pacWedgeList = &g_dmmWedgeLists[(g_aucConvertToBit[(pcTempCU->getWidth( uiTempPartIdx )>>((pcTempCU->getPartitionSize( uiTempPartIdx ) == SIZE_NxN) ? 1 : 0))])];
      TComWedgelet* pcRefWedgelet = &(pacWedgeList->at( pcTempCU->getDmmWedgeTabIdx( dimType, uiTempPartIdx ) ) );

      // find wedgelet, if direction is suitable for continue wedge
      if( pcRefWedgelet->checkPredDirLeftPossible( uiThisBlockSize, uiOffsetY ) )
      {
        UChar uhContD_Xs, uhContD_Ys, uhContD_Xe, uhContD_Ye;
        pcRefWedgelet->getPredDirStartEndLeft( uhContD_Xs, uhContD_Ys, uhContD_Xe, uhContD_Ye, uiThisBlockSize, uiOffsetY, iDeltaEnd );
        return xGetWedgePatternIdx( uiThisBlockSize, uhContD_Xs, uhContD_Ys, uhContD_Xe, uhContD_Ye );
      }
    }
  }

  // 3rd: (default) make wedglet from intra dir and max slope point
  Int iSlopeX = 0, iSlopeY = 0;
  UInt uiStartPosX = 0, uiStartPosY = 0;
  if( xGetWedgeIntraDirPredData( pcCU, uiAbsPartIdx, uiThisBlockSize, iSlopeX, iSlopeY, uiStartPosX, uiStartPosY ) )
  {
    UChar uhContD_Xs, uhContD_Ys, uhContD_Xe, uhContD_Ye;
    xGetWedgeIntraDirStartEnd( pcCU, uiAbsPartIdx, uiThisBlockSize, iSlopeX, iSlopeY, uiStartPosX, uiStartPosY, uhContD_Xs, uhContD_Ys, uhContD_Xe, uhContD_Ye, iDeltaEnd );
    return xGetWedgePatternIdx( uiThisBlockSize, uhContD_Xs, uhContD_Ys, uhContD_Xe, uhContD_Ye );
  }

  return 0;
}

UInt TComPrediction::xPredWedgeFromTex( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiWidth, UInt uiHeight, UInt intraTabIdx )
{
  TComPic*      pcPicTex = pcCU->getSlice()->getPicLists()->getPic( pcCU->getSlice()->getViewIndex(), false, pcCU->getSlice()->getPOC() );
  assert( pcPicTex != NULL );
  TComDataCU*   pcColTexCU = pcPicTex->getCU(pcCU->getAddr());
  UInt          uiTexPartIdx = pcCU->getZorderIdxInCU() + uiAbsPartIdx;
  Int           uiColTexIntraDir = pcColTexCU->isIntra( uiTexPartIdx ) ? pcColTexCU->getLumaIntraDir( uiTexPartIdx ) : 255;

  if( uiColTexIntraDir > DC_IDX && uiColTexIntraDir < 35 ) { return g_aauiWdgLstM3[g_aucConvertToBit[uiWidth]][uiColTexIntraDir-2].at(intraTabIdx); }
  else                                                     { return g_dmmWedgeNodeLists[(g_aucConvertToBit[uiWidth])].at(intraTabIdx).getPatternIdx(); }
}

Void TComPrediction::xPredContourFromTex( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiWidth, UInt uiHeight, TComWedgelet* pcContourWedge )
{
  pcContourWedge->clear();

  // get copy of co-located texture luma block
  TComYuv cTempYuv;
  cTempYuv.create( uiWidth, uiHeight ); 
  cTempYuv.clear();
  Pel* piRefBlkY = cTempYuv.getLumaAddr();
  xCopyTextureLumaBlock( pcCU, uiAbsPartIdx, piRefBlkY, uiWidth, uiHeight );
  piRefBlkY = cTempYuv.getLumaAddr();

  // find contour for texture luma block
  UInt iDC = 0;
  for( UInt k = 0; k < (uiWidth*uiHeight); k++ ) 
  { 
    iDC += piRefBlkY[k]; 
  }
  iDC /= (uiWidth*uiHeight);
  piRefBlkY = cTempYuv.getLumaAddr();

  Bool* pabContourPattern = pcContourWedge->getPattern();
  for( UInt k = 0; k < (uiWidth*uiHeight); k++ ) 
  { 
    pabContourPattern[k] = (piRefBlkY[k] > iDC) ? true : false;
  }

  cTempYuv.destroy();
}


Void TComPrediction::xCopyTextureLumaBlock( TComDataCU* pcCU, UInt uiAbsPartIdx, Pel* piDestBlockY, UInt uiWidth, UInt uiHeight )
{
  TComPicYuv* pcPicYuvRef = pcCU->getSlice()->getPicLists()->getPic( pcCU->getSlice()->getViewIndex(), false, pcCU->getSlice()->getPOC() )->getPicYuvRec();
  assert( pcPicYuvRef != NULL );
  Int         iRefStride = pcPicYuvRef->getStride();
  Pel*        piRefY = pcPicYuvRef->getLumaAddr( pcCU->getAddr(), pcCU->getZorderIdxInCU() + uiAbsPartIdx );

  for ( Int y = 0; y < uiHeight; y++ )
  {
    ::memcpy(piDestBlockY, piRefY, sizeof(Pel)*uiWidth);
    piDestBlockY += uiWidth;
    piRefY += iRefStride;
  }
}

Void TComPrediction::xGetBlockOffset( TComDataCU* pcCU, UInt uiAbsPartIdx, TComDataCU* pcRefCU, UInt uiRefAbsPartIdx, UInt& ruiOffsetX, UInt& ruiOffsetY )
{
  ruiOffsetX = 0;
  ruiOffsetY = 0;

  // get offset between current and above/left block
  UInt uiThisOriginX = pcCU->getCUPelX() + g_auiRasterToPelX[ g_auiZscanToRaster[uiAbsPartIdx] ];
  UInt uiThisOriginY = pcCU->getCUPelY() + g_auiRasterToPelY[ g_auiZscanToRaster[uiAbsPartIdx] ];

  UInt uiNumPartInRefCU = pcRefCU->getTotalNumPart();
  UInt uiMaxDepthRefCU = 0;
  while( uiNumPartInRefCU > 1 )
  {
    uiNumPartInRefCU >>= 2;
    uiMaxDepthRefCU++;
  }

  UInt uiDepthRefPU = (pcRefCU->getDepth(uiRefAbsPartIdx)) + (pcRefCU->getPartitionSize(uiRefAbsPartIdx) == SIZE_2Nx2N ? 0 : 1);
  UInt uiShifts = (uiMaxDepthRefCU - uiDepthRefPU)*2;
  UInt uiRefBlockOriginPartIdx = (uiRefAbsPartIdx>>uiShifts)<<uiShifts;

  UInt uiRefOriginX = pcRefCU->getCUPelX() + g_auiRasterToPelX[ g_auiZscanToRaster[uiRefBlockOriginPartIdx] ];
  UInt uiRefOriginY = pcRefCU->getCUPelY() + g_auiRasterToPelY[ g_auiZscanToRaster[uiRefBlockOriginPartIdx] ];

  if( (uiThisOriginX - uiRefOriginX) > 0 ) { ruiOffsetX = (UInt)(uiThisOriginX - uiRefOriginX); }
  if( (uiThisOriginY - uiRefOriginY) > 0 ) { ruiOffsetY = (UInt)(uiThisOriginY - uiRefOriginY); }
}

Bool TComPrediction::xGetWedgeIntraDirPredData( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiBlockSize, Int& riSlopeX, Int& riSlopeY, UInt& ruiStartPosX, UInt& ruiStartPosY )
{
  riSlopeX = 0, riSlopeY = 0, ruiStartPosX = 0, ruiStartPosY = 0;

  // 1st step: get wedge start point (max. slope)
  Int* piSource = pcCU->getPattern()->getAdiOrgBuf( uiBlockSize, uiBlockSize, m_piYuvExt );
  Int iSourceStride = ( uiBlockSize<<1 ) + 1;

  UInt uiSlopeMaxAbove = 0, uiPosSlopeMaxAbove = 0;
  for( UInt uiPosHor = 0; uiPosHor < (uiBlockSize-1); uiPosHor++ )
  {
    if( abs( piSource[uiPosHor+1] - piSource[uiPosHor] ) > uiSlopeMaxAbove )
    {
      uiSlopeMaxAbove = abs( piSource[uiPosHor+1] - piSource[uiPosHor] );
      uiPosSlopeMaxAbove = uiPosHor;
    }
  }

  UInt uiSlopeMaxLeft = 0, uiPosSlopeMaxLeft = 0;
  for( UInt uiPosVer = 0; uiPosVer < (uiBlockSize-1); uiPosVer++ )
  {
    if( abs( piSource[(uiPosVer+1)*iSourceStride] - piSource[uiPosVer*iSourceStride] ) > uiSlopeMaxLeft )
    {
      uiSlopeMaxLeft = abs( piSource[(uiPosVer+1)*iSourceStride] - piSource[uiPosVer*iSourceStride] );
      uiPosSlopeMaxLeft = uiPosVer;
    }
  }

  if( uiSlopeMaxAbove == 0 && uiSlopeMaxLeft == 0 ) 
  { 
    return false; 
  }

  ruiStartPosX = ( uiSlopeMaxAbove >  uiSlopeMaxLeft  ) ? uiPosSlopeMaxAbove : 0;
  ruiStartPosY = ( uiSlopeMaxLeft  >= uiSlopeMaxAbove ) ? uiPosSlopeMaxLeft  : 0;

  // 2nd step: derive wedge direction
  Int uiPreds[3] = {-1, -1, -1};
  Int iMode = -1;
  Int iPredNum = pcCU->getIntraDirLumaPredictor( uiAbsPartIdx, uiPreds, &iMode );  

  UInt uiDirMode = 0;
  if( iMode >= 0 ) { iPredNum = iMode; }
  if( iPredNum == 1 ) { uiDirMode = uiPreds[0]; }
  if( iPredNum == 2 ) { uiDirMode = uiPreds[1]; }

  if( uiDirMode < 2 ) { return false; } // no planar & DC

  Bool modeHor       = (uiDirMode < 18);
  Bool modeVer       = !modeHor;
  Int intraPredAngle = modeVer ? (Int)uiDirMode - VER_IDX : modeHor ? -((Int)uiDirMode - HOR_IDX) : 0;
  Int absAng         = abs(intraPredAngle);
  Int signAng        = intraPredAngle < 0 ? -1 : 1;
  Int angTable[9]    = {0,2,5,9,13,17,21,26,32};
  absAng             = angTable[absAng];
  intraPredAngle     = signAng * absAng;

  // 3rd step: set slope for direction
  if( modeHor )
  {
    riSlopeX = ( intraPredAngle > 0 ) ?            -32 :              32;
    riSlopeY = ( intraPredAngle > 0 ) ? intraPredAngle : -intraPredAngle;
  }
  else if( modeVer )
  {
    riSlopeX = ( intraPredAngle > 0 ) ? intraPredAngle : -intraPredAngle;
    riSlopeY = ( intraPredAngle > 0 ) ?            -32 :              32;
  }

  return true;
}

Void TComPrediction::xGetWedgeIntraDirStartEnd( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiBlockSize, Int iDeltaX, Int iDeltaY, UInt uiPMSPosX, UInt uiPMSPosY, UChar& ruhXs, UChar& ruhYs, UChar& ruhXe, UChar& ruhYe, Int iDeltaEnd )
{
  ruhXs = 0;
  ruhYs = 0;
  ruhXe = 0;
  ruhYe = 0;

  // scaling of start pos and block size to wedge resolution
  UInt uiScaledStartPosX = 0;
  UInt uiScaledStartPosY = 0;
  UInt uiScaledBlockSize = 0;
  WedgeResolution eWedgeRes = g_dmmWedgeResolution[(UInt)g_aucConvertToBit[uiBlockSize]];
  switch( eWedgeRes )
  {
  case( DOUBLE_PEL ): { uiScaledStartPosX = (uiPMSPosX>>1); uiScaledStartPosY = (uiPMSPosY>>1); uiScaledBlockSize = (uiBlockSize>>1); break; }
  case(   FULL_PEL ): { uiScaledStartPosX =  uiPMSPosX;     uiScaledStartPosY =  uiPMSPosY;     uiScaledBlockSize =  uiBlockSize;     break; }
  case(   HALF_PEL ): { uiScaledStartPosX = (uiPMSPosX<<1); uiScaledStartPosY = (uiPMSPosY<<1); uiScaledBlockSize = (uiBlockSize<<1); break; }
  }
  Int iMaxPos = (Int)uiScaledBlockSize - 1;

  // case above
  if( uiScaledStartPosX > 0 && uiScaledStartPosY == 0 )
  {
    ruhXs = (UChar)uiScaledStartPosX;
    ruhYs = 0;

    if( iDeltaY == 0 )
    {
      if( iDeltaX < 0 )
      {
        ruhXe = 0;
        ruhYe = (UChar)std::min( std::max( iDeltaEnd, 0 ), iMaxPos );
        return;
      }
      else
      {
        ruhXe = (UChar)iMaxPos;
        ruhYe = (UChar)std::min( std::max( -iDeltaEnd, 0 ), iMaxPos );
        std::swap( ruhXs, ruhXe );
        std::swap( ruhYs, ruhYe );
        return;
      }
    }

    // regular case
    Int iVirtualEndX = (Int)ruhXs + roftoi( (Double)iMaxPos * ((Double)iDeltaX / (Double)iDeltaY) );

    if( iVirtualEndX < 0 )
    {
      Int iYe = roftoi( (Double)(0 - (Int)ruhXs) * ((Double)iDeltaY / (Double)iDeltaX) ) + iDeltaEnd;
      if( iYe < (Int)uiScaledBlockSize )
      {
        ruhXe = 0;
        ruhYe = (UChar)std::max( iYe, 0 );
        return;
      }
      else
      {
        ruhXe = (UChar)std::min( (iYe - iMaxPos), iMaxPos );
        ruhYe = (UChar)iMaxPos;
        return;
      }
    }
    else if( iVirtualEndX > iMaxPos )
    {
      Int iYe = roftoi( (Double)(iMaxPos - (Int)ruhXs) * ((Double)iDeltaY / (Double)iDeltaX) ) - iDeltaEnd;
      if( iYe < (Int)uiScaledBlockSize )
      {
        ruhXe = (UChar)iMaxPos;
        ruhYe = (UChar)std::max( iYe, 0 );
        std::swap( ruhXs, ruhXe );
        std::swap( ruhYs, ruhYe );
        return;
      }
      else
      {
        ruhXe = (UChar)std::max( (iMaxPos - (iYe - iMaxPos)), 0 );
        ruhYe = (UChar)iMaxPos;
        return;
      }
    }
    else
    {
      Int iXe = iVirtualEndX + iDeltaEnd;
      if( iXe < 0 )
      {
        ruhXe = 0;
        ruhYe = (UChar)std::max( (iMaxPos + iXe), 0 );
        return;
      }
      else if( iXe > iMaxPos )
      {
        ruhXe = (UChar)iMaxPos;
        ruhYe = (UChar)std::max( (iMaxPos - (iXe - iMaxPos)), 0 );
        std::swap( ruhXs, ruhXe );
        std::swap( ruhYs, ruhYe );
        return;
      }
      else
      {
        ruhXe = (UChar)iXe;
        ruhYe = (UChar)iMaxPos;
        return;
      }
    }
  }

  // case left
  if( uiScaledStartPosY > 0 && uiScaledStartPosX == 0 )
  {
    ruhXs = 0;
    ruhYs = (UChar)uiScaledStartPosY;

    if( iDeltaX == 0 )
    {
      if( iDeltaY < 0 )
      {
        ruhXe = (UChar)std::min( std::max( -iDeltaEnd, 0 ), iMaxPos );
        ruhYe = 0;
        std::swap( ruhXs, ruhXe );
        std::swap( ruhYs, ruhYe );
        return;
      }
      else
      {
        ruhXe = (UChar)std::min( std::max( iDeltaEnd, 0 ), iMaxPos );
        ruhYe = (UChar)iMaxPos;
        return; 
      }
    }

    // regular case
    Int iVirtualEndY = (Int)ruhYs + roftoi( (Double)iMaxPos * ((Double)iDeltaY / (Double)iDeltaX) );

    if( iVirtualEndY < 0 )
    {
      Int iXe = roftoi( (Double)(0 - (Int)ruhYs ) * ((Double)iDeltaX / (Double)iDeltaY) ) - iDeltaEnd;
      if( iXe < (Int)uiScaledBlockSize )
      {
        ruhXe = (UChar)std::max( iXe, 0 );
        ruhYe = 0;
        std::swap( ruhXs, ruhXe );
        std::swap( ruhYs, ruhYe );
        return;
      }
      else
      {
        ruhXe = (UChar)iMaxPos;
        ruhYe = (UChar)std::min( (iXe - iMaxPos), iMaxPos );
        std::swap( ruhXs, ruhXe );
        std::swap( ruhYs, ruhYe );
        return;
      }
    }
    else if( iVirtualEndY > (uiScaledBlockSize-1) )
    {
      Int iXe = roftoi( (Double)((Int)(uiScaledBlockSize-1) - (Int)ruhYs ) * ((Double)iDeltaX / (Double)iDeltaY) ) + iDeltaEnd;
      if( iXe < (Int)uiScaledBlockSize )
      {
        ruhXe = (UChar)std::max( iXe, 0 );
        ruhYe = (UChar)(uiScaledBlockSize-1);
        return;
      }
      else
      {
        ruhXe = (UChar)iMaxPos;
        ruhYe = (UChar)std::max( (iMaxPos - (iXe - iMaxPos)), 0 );
        std::swap( ruhXs, ruhXe );
        std::swap( ruhYs, ruhYe );
        return;
      }
    }
    else
    {
      Int iYe = iVirtualEndY - iDeltaEnd;
      if( iYe < 0 )
      {
        ruhXe = (UChar)std::max( (iMaxPos + iYe), 0 );
        ruhYe = 0;
        std::swap( ruhXs, ruhXe );
        std::swap( ruhYs, ruhYe );
        return;
      }
      else if( iYe > iMaxPos )
      {
        ruhXe = (UChar)std::max( (iMaxPos - (iYe - iMaxPos)), 0 );
        ruhYe = (UChar)iMaxPos;
        return;
      }
      else
      {
        ruhXe = (UChar)iMaxPos;
        ruhYe = (UChar)iYe;
        std::swap( ruhXs, ruhXe );
        std::swap( ruhYs, ruhYe );
        return;
      }
    }
  }

  // case origin
  if( uiScaledStartPosX == 0 && uiScaledStartPosY == 0 )
  {
    if( iDeltaX*iDeltaY < 0 )
    {
      return;
    }

    ruhXs = 0;
    ruhYs = 0;

    if( iDeltaY == 0 )
    {
      ruhXe = (UChar)iMaxPos;
      ruhYe = 0;
      std::swap( ruhXs, ruhXe );
      std::swap( ruhYs, ruhYe );
      return;
    }

    if( iDeltaX == 0 )
    {
      ruhXe = 0;
      ruhYe = (UChar)iMaxPos;
      return;
    }

    Int iVirtualEndX = (Int)ruhXs + roftoi( (Double)iMaxPos * ((Double)iDeltaX / (Double)iDeltaY) );

    if( iVirtualEndX > iMaxPos )
    {
      Int iYe = roftoi( (Double)((Int)iMaxPos - (Int)ruhXs) * ((Double)iDeltaY / (Double)iDeltaX) ) - iDeltaEnd;
      if( iYe < (Int)uiScaledBlockSize )
      {
        ruhXe = (UChar)(uiScaledBlockSize-1);
        ruhYe = (UChar)std::max( iYe, 0 );
        std::swap( ruhXs, ruhXe );
        std::swap( ruhYs, ruhYe );
        return;
      }
      else
      {
        ruhXe = (UChar)std::max( (iMaxPos - (iYe - iMaxPos)), 0 );
        ruhYe = (UChar)(uiScaledBlockSize-1);
        return;
      }
    }
    else
    {
      Int iXe = iVirtualEndX + iDeltaEnd;
      if( iXe < 0 )
      {
        ruhXe = 0;
        ruhYe = (UChar)std::max( (iMaxPos + iXe), 0 );
        return;
      }
      else if( iXe > iMaxPos )
      {
        ruhXe = (UChar)(uiScaledBlockSize-1);
        ruhYe = (UChar)std::max( (iMaxPos - (iXe - iMaxPos)), 0 );
        std::swap( ruhXs, ruhXe );
        std::swap( ruhYs, ruhYe );
        return;
      }
      else
      {
        ruhXe = (UChar)iXe;
        ruhYe = (UChar)(uiScaledBlockSize-1);
        return;
      }
    }
  }
}

UInt TComPrediction::xGetWedgePatternIdx( UInt uiBlockSize, UChar uhXs, UChar uhYs, UChar uhXe, UChar uhYe )
{
  WedgeRefList* pcWedgeRefList = &g_dmmWedgeRefLists[(g_aucConvertToBit[uiBlockSize])];
  for( UInt uiIdx = 0; uiIdx < pcWedgeRefList->size(); uiIdx++ )
  {
    TComWedgeRef* pcTestWedgeRef = &(pcWedgeRefList->at(uiIdx));
    if( pcTestWedgeRef->getStartX() == uhXs && pcTestWedgeRef->getStartY() == uhYs && pcTestWedgeRef->getEndX() == uhXe && pcTestWedgeRef->getEndY() == uhYe )
    {
      return pcTestWedgeRef->getRefIdx();
    }
  }
  return 0;
}
#endif
#if H_3D_DIM_RBC
Void TComPrediction::xDeltaDCQuantScaleUp( TComDataCU* pcCU, Pel& rDeltaDC )
{
  Int  iSign  = rDeltaDC < 0 ? -1 : 1;
  UInt uiAbs  = abs( rDeltaDC );

  Int iQp = pcCU->getQP(0);
  Double dMax = (Double)( 1<<( g_bitDepthY - 1 ) );
  Double dStepSize = Clip3( 1.0, dMax, pow( 2.0, iQp/10.0 - 2.0 ) );

  rDeltaDC = iSign * roftoi( uiAbs * dStepSize );
  return;
}

Void TComPrediction::xDeltaDCQuantScaleDown( TComDataCU*  pcCU, Pel& rDeltaDC )
{
  Int  iSign  = rDeltaDC < 0 ? -1 : 1;
  UInt uiAbs  = abs( rDeltaDC );

  Int iQp = pcCU->getQP(0);
  Double dMax = (Double)( 1<<( g_bitDepthY - 1 ) );
  Double dStepSize = Clip3( 1.0, dMax, pow( 2.0, iQp/10.0 - 2.0 ) );

  rDeltaDC = iSign * roftoi( uiAbs / dStepSize );
  return;
}
#endif
#endif
//! \}