Picture.cpp

      pi += p.stride;
    }

    // pi is now the (0,height) (bottom left of image within bigger picture
    pi -= (p.stride + xmargin);
    // pi is now the (-marginX, height-1)
    for (int y = 0; y < ymargin; y++ )
    {
      ::memcpy( pi + (y+1)*p.stride, pi, sizeof(Pel)*(p.width + (xmargin << 1)));
    }

    // pi is still (-marginX, height-1)
    pi -= ((p.height-1) * p.stride);
    // pi is now (-marginX, 0)
    for (int y = 0; y < ymargin; y++ )
    {
      ::memcpy( pi - (y+1)*p.stride, pi, sizeof(Pel)*(p.width + (xmargin<<1)) );
    }
  }

  m_bIsBorderExtended = true;
}

PelBuf Picture::getBuf( const ComponentID compID, const PictureType &type )
{
  return M_BUFS( type == PIC_ORIGINAL ? 0 : scheduler.getSplitPicId(), type ).getBuf( compID );
}

const CPelBuf Picture::getBuf( const ComponentID compID, const PictureType &type ) const
{
  return M_BUFS( type == PIC_ORIGINAL ? 0 : scheduler.getSplitPicId(), type ).getBuf( compID );
}

PelBuf Picture::getBuf( const CompArea &blk, const PictureType &type )
{
  if( !blk.valid() )
  {
    return PelBuf();
  }

#if ENABLE_SPLIT_PARALLELISM
  const int jId = type == PIC_ORIGINAL ? 0 : scheduler.getSplitPicId();

#endif
#if !KEEP_PRED_AND_RESI_SIGNALS
  if( type == PIC_RESIDUAL || type == PIC_PREDICTION )
  {
    CompArea localBlk = blk;
    localBlk.x &= ( cs->pcv->maxCUWidthMask  >> getComponentScaleX( blk.compID, blk.chromaFormat ) );
    localBlk.y &= ( cs->pcv->maxCUHeightMask >> getComponentScaleY( blk.compID, blk.chromaFormat ) );

    return M_BUFS( jId, type ).getBuf( localBlk );
  }
#endif

  return M_BUFS( jId, type ).getBuf( blk );
}

const CPelBuf Picture::getBuf( const CompArea &blk, const PictureType &type ) const
{
  if( !blk.valid() )
  {
    return PelBuf();
  }

#if ENABLE_SPLIT_PARALLELISM
  const int jId = type == PIC_ORIGINAL ? 0 : scheduler.getSplitPicId();

#endif
#if !KEEP_PRED_AND_RESI_SIGNALS
  if( type == PIC_RESIDUAL || type == PIC_PREDICTION )
  {
    CompArea localBlk = blk;
    localBlk.x &= ( cs->pcv->maxCUWidthMask  >> getComponentScaleX( blk.compID, blk.chromaFormat ) );
    localBlk.y &= ( cs->pcv->maxCUHeightMask >> getComponentScaleY( blk.compID, blk.chromaFormat ) );

    return M_BUFS( jId, type ).getBuf( localBlk );
  }
#endif

  return M_BUFS( jId, type ).getBuf( blk );
}

PelUnitBuf Picture::getBuf( const UnitArea &unit, const PictureType &type )
{
  if( chromaFormat == CHROMA_400 )
  {
    return PelUnitBuf( chromaFormat, getBuf( unit.Y(), type ) );
  }
  else
  {
    return PelUnitBuf( chromaFormat, getBuf( unit.Y(), type ), getBuf( unit.Cb(), type ), getBuf( unit.Cr(), type ) );
  }
}

const CPelUnitBuf Picture::getBuf( const UnitArea &unit, const PictureType &type ) const
{
  if( chromaFormat == CHROMA_400 )
  {
    return CPelUnitBuf( chromaFormat, getBuf( unit.Y(), type ) );
  }
  else
  {
    return CPelUnitBuf( chromaFormat, getBuf( unit.Y(), type ), getBuf( unit.Cb(), type ), getBuf( unit.Cr(), type ) );
  }
}

Pel* Picture::getOrigin( const PictureType &type, const ComponentID compID ) const
{
#if ENABLE_SPLIT_PARALLELISM
  const int jId = type == PIC_ORIGINAL ? 0 : scheduler.getSplitPicId();
#endif
  return M_BUFS( jId, type ).getOrigin( compID );

}