/* The copyright in this software is being made available under the BSD
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 * granted under this license.  
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/** \file     TComPicSym.cpp
    \brief    picture symbol class
*/

#include "TComPicSym.h"

//! \ingroup TLibCommon
//! \{

// ====================================================================================================================
// Constructor / destructor / create / destroy
// ====================================================================================================================

Void TComPicSym::create  ( Int iPicWidth, Int iPicHeight, UInt uiMaxWidth, UInt uiMaxHeight, UInt uiMaxDepth )
{
  UInt i;

  m_uhTotalDepth      = uiMaxDepth;
  m_uiNumPartitions   = 1<<(m_uhTotalDepth<<1);
  
  m_uiMaxCUWidth      = uiMaxWidth;
  m_uiMaxCUHeight     = uiMaxHeight;
  
  m_uiMinCUWidth      = uiMaxWidth  >> m_uhTotalDepth;
  m_uiMinCUHeight     = uiMaxHeight >> m_uhTotalDepth;
  
  m_uiNumPartInWidth  = m_uiMaxCUWidth  / m_uiMinCUWidth;
  m_uiNumPartInHeight = m_uiMaxCUHeight / m_uiMinCUHeight;
  
  m_uiWidthInCU       = ( iPicWidth %m_uiMaxCUWidth  ) ? iPicWidth /m_uiMaxCUWidth  + 1 : iPicWidth /m_uiMaxCUWidth;
  m_uiHeightInCU      = ( iPicHeight%m_uiMaxCUHeight ) ? iPicHeight/m_uiMaxCUHeight + 1 : iPicHeight/m_uiMaxCUHeight;
  
  m_uiNumCUsInFrame   = m_uiWidthInCU * m_uiHeightInCU;
  m_apcTComDataCU     = new TComDataCU*[m_uiNumCUsInFrame];
  
  if (m_uiNumAllocatedSlice>0)
  {
    for ( i=0; i<m_uiNumAllocatedSlice ; i++ )
    {
      delete m_apcTComSlice[i];
    }
    delete [] m_apcTComSlice;
  }
  m_apcTComSlice      = new TComSlice*[m_uiNumCUsInFrame*m_uiNumPartitions];  
  m_apcTComSlice[0]   = new TComSlice;
  m_uiNumAllocatedSlice = 1;
  for ( i=0; i<m_uiNumCUsInFrame ; i++ )
  {
    m_apcTComDataCU[i] = new TComDataCU;
    m_apcTComDataCU[i]->create( m_uiNumPartitions, m_uiMaxCUWidth, m_uiMaxCUHeight, false, m_uiMaxCUWidth >> m_uhTotalDepth
#if ADAPTIVE_QP_SELECTION
      , true
#endif     
      );
  }

  m_puiCUOrderMap = new UInt[m_uiNumCUsInFrame+1];
  m_puiTileIdxMap = new UInt[m_uiNumCUsInFrame];
  m_puiInverseCUOrderMap = new UInt[m_uiNumCUsInFrame+1];

  for( i=0; i<m_uiNumCUsInFrame; i++ )
  {
    m_puiCUOrderMap[i] = i;
    m_puiInverseCUOrderMap[i] = i;
  }
}

Void TComPicSym::destroy()
{
  Int i;
  
  if (m_uiNumAllocatedSlice>0)
  {
    for ( i=0; i<m_uiNumAllocatedSlice ; i++ )
    {
      delete m_apcTComSlice[i];
    }
    delete [] m_apcTComSlice;
  }
  m_apcTComSlice = NULL;
  
  for (i = 0; i < m_uiNumCUsInFrame; i++)
  {
    m_apcTComDataCU[i]->destroy();
    delete m_apcTComDataCU[i];
    m_apcTComDataCU[i] = NULL;
  }
  delete [] m_apcTComDataCU;
  m_apcTComDataCU = NULL;


  for( i=0; i<(m_iNumColumnsMinus1+1)*(m_iNumRowsMinus1+1); i++ )
  {
    if ( m_apcTComTile[i] )  delete m_apcTComTile[i];
  }

  delete [] m_apcTComTile;
  m_apcTComTile = NULL;

  delete [] m_puiCUOrderMap;
  m_puiCUOrderMap = NULL;

  delete [] m_puiTileIdxMap;
  m_puiTileIdxMap = NULL;

  delete [] m_puiInverseCUOrderMap;
  m_puiInverseCUOrderMap = NULL;
}

Void TComPicSym::allocateNewSlice()
{
  m_apcTComSlice[m_uiNumAllocatedSlice ++] = new TComSlice;
  if (m_uiNumAllocatedSlice>=2)
  {
    m_apcTComSlice[m_uiNumAllocatedSlice-1]->copySliceInfo( m_apcTComSlice[m_uiNumAllocatedSlice-2] );
    m_apcTComSlice[m_uiNumAllocatedSlice-1]->initSlice();
    m_apcTComSlice[m_uiNumAllocatedSlice-1]->initTiles();

  }
}

Void TComPicSym::clearSliceBuffer()
{
  UInt i;
  for (i = 1; i < m_uiNumAllocatedSlice; i++)
  {
    delete m_apcTComSlice[i];
  }
  m_uiNumAllocatedSlice = 1;
}

UInt TComPicSym::getPicSCUEncOrder( UInt SCUAddr )
{ 
  return getInverseCUOrderMap(SCUAddr/m_uiNumPartitions)*m_uiNumPartitions + SCUAddr%m_uiNumPartitions; 
}

UInt TComPicSym::getPicSCUAddr( UInt SCUEncOrder )
{
  return getCUOrderMap(SCUEncOrder/m_uiNumPartitions)*m_uiNumPartitions + SCUEncOrder%m_uiNumPartitions;
}

Void TComPicSym::xCreateTComTileArray()
{
  m_apcTComTile = new TComTile*[(m_iNumColumnsMinus1+1)*(m_iNumRowsMinus1+1)];
  for( UInt i=0; i<(m_iNumColumnsMinus1+1)*(m_iNumRowsMinus1+1); i++ )
  {
    m_apcTComTile[i] = new TComTile;
  }
}

Void TComPicSym::xInitTiles()
{
  UInt  uiTileIdx;
  UInt  uiColumnIdx = 0;
  UInt  uiRowIdx = 0;
  UInt  uiRightEdgePosInCU;
  UInt  uiBottomEdgePosInCU;
  Int   i, j;

  //initialize each tile of the current picture
  for( uiRowIdx=0; uiRowIdx < m_iNumRowsMinus1+1; uiRowIdx++ )
    for( uiColumnIdx=0; uiColumnIdx < m_iNumColumnsMinus1+1; uiColumnIdx++ )
    {
      uiTileIdx = uiRowIdx * (m_iNumColumnsMinus1+1) + uiColumnIdx;

      //initialize the RightEdgePosInCU for each tile
      uiRightEdgePosInCU = 0;
      for( i=0; i <= uiColumnIdx; i++ )
      {
        uiRightEdgePosInCU += this->getTComTile(uiRowIdx * (m_iNumColumnsMinus1+1) + i)->getTileWidth();
      }
      this->getTComTile(uiTileIdx)->setRightEdgePosInCU(uiRightEdgePosInCU-1);

      //initialize the BottomEdgePosInCU for each tile
      uiBottomEdgePosInCU = 0;
      for( i=0; i <= uiRowIdx; i++ )
      {
        uiBottomEdgePosInCU += this->getTComTile(i * (m_iNumColumnsMinus1+1) + uiColumnIdx)->getTileHeight();
      }
      this->getTComTile(uiTileIdx)->setBottomEdgePosInCU(uiBottomEdgePosInCU-1);

      //initialize the FirstCUAddr for each tile
      this->getTComTile(uiTileIdx)->setFirstCUAddr( (this->getTComTile(uiTileIdx)->getBottomEdgePosInCU() - this->getTComTile(uiTileIdx)->getTileHeight() +1)*m_uiWidthInCU + 
        this->getTComTile(uiTileIdx)->getRightEdgePosInCU() - this->getTComTile(uiTileIdx)->getTileWidth() + 1);
    }

  //initialize the TileIdxMap
  for( i=0; i<m_uiNumCUsInFrame; i++)
  {
    for(j=0; j < m_iNumColumnsMinus1+1; j++)
    {
      if(i % m_uiWidthInCU <= this->getTComTile(j)->getRightEdgePosInCU())
      {
        uiColumnIdx = j;
        j = m_iNumColumnsMinus1+1;
      }
    }
    for(j=0; j < m_iNumRowsMinus1+1; j++)
    {
      if(i/m_uiWidthInCU <= this->getTComTile(j*(m_iNumColumnsMinus1 + 1))->getBottomEdgePosInCU())
      {
        uiRowIdx = j;
        j = m_iNumRowsMinus1 + 1;
      }
    }
    m_puiTileIdxMap[i] = uiRowIdx * (m_iNumColumnsMinus1 + 1) + uiColumnIdx;
  }

  // Determine bits required for tile index
  Int uiTilesCount = (m_iNumRowsMinus1+1) * (m_iNumColumnsMinus1+1);
  m_uiBitsUsedByTileIdx = 0;
  while (uiTilesCount)
  {
    m_uiBitsUsedByTileIdx++;
    uiTilesCount >>= 1;
  }
}

UInt TComPicSym::xCalculateNxtCUAddr( UInt uiCurrCUAddr )
{
  UInt  uiNxtCUAddr;
  UInt  uiTileIdx;
  
  //get the tile index for the current LCU
  uiTileIdx = this->getTileIdxMap(uiCurrCUAddr);

  //get the raster scan address for the next LCU
  if( uiCurrCUAddr % m_uiWidthInCU == this->getTComTile(uiTileIdx)->getRightEdgePosInCU() && uiCurrCUAddr / m_uiWidthInCU == this->getTComTile(uiTileIdx)->getBottomEdgePosInCU() )
  //the current LCU is the last LCU of the tile
  {
    if(uiTileIdx == (m_iNumColumnsMinus1+1)*(m_iNumRowsMinus1+1)-1)
    {
      uiNxtCUAddr = m_uiNumCUsInFrame;
    }
    else
    {
      uiNxtCUAddr = this->getTComTile(uiTileIdx+1)->getFirstCUAddr();
    }
  } 
  else //the current LCU is not the last LCU of the tile
  {
    if( uiCurrCUAddr % m_uiWidthInCU == this->getTComTile(uiTileIdx)->getRightEdgePosInCU() )  //the current LCU is on the rightmost edge of the tile
    {
      uiNxtCUAddr = uiCurrCUAddr + m_uiWidthInCU - this->getTComTile(uiTileIdx)->getTileWidth() + 1;
    }
    else
    {
      uiNxtCUAddr = uiCurrCUAddr + 1;
    }
  }

  return uiNxtCUAddr;
}

TComTile::TComTile()
{
}

TComTile::~TComTile()
{
}
//! \}