/* The copyright in this software is being made available under the BSD
 * License, included below. This software may be subject to other third party
 * and contributor rights, including patent rights, and no such rights are
 * granted under this license.
 *
 * Copyright (c) 2010-2015, ITU/ISO/IEC
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *  * Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
 *  * Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 *  * Neither the name of the ITU/ISO/IEC nor the names of its contributors may
 *    be used to endorse or promote products derived from this software without
 *    specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
 * THE POSSIBILITY OF SUCH DAMAGE.
 */

/** \file     TEncCu.h
    \brief    Coding Unit (CU) encoder class (header)
*/

#ifndef __TENCCU__
#define __TENCCU__

// Include files
#include "TLibCommon/CommonDef.h"
#include "TLibCommon/TComYuv.h"
#include "TLibCommon/TComPrediction.h"
#include "TLibCommon/TComTrQuant.h"
#include "TLibCommon/TComBitCounter.h"
#include "TLibCommon/TComDataCU.h"

#include "TEncEntropy.h"
#include "TEncSearch.h"
#include "TEncRateCtrl.h"
//! \ingroup TLibEncoder
//! \{

class TEncTop;
class TEncSbac;
class TEncCavlc;
class TEncSlice;

// ====================================================================================================================
// Class definition
// ====================================================================================================================

/// CU encoder class
class TEncCu
{
private:

  TComDataCU**            m_ppcBestCU;      ///< Best CUs in each depth
  TComDataCU**            m_ppcTempCU;      ///< Temporary CUs in each depth
#if H_3D_ARP
  TComDataCU**            m_ppcWeightedTempCU;
#endif
  UChar                   m_uhTotalDepth;

  TComYuv**               m_ppcPredYuvBest; ///< Best Prediction Yuv for each depth
  TComYuv**               m_ppcResiYuvBest; ///< Best Residual Yuv for each depth
  TComYuv**               m_ppcRecoYuvBest; ///< Best Reconstruction Yuv for each depth
  TComYuv**               m_ppcPredYuvTemp; ///< Temporary Prediction Yuv for each depth
  TComYuv**               m_ppcResiYuvTemp; ///< Temporary Residual Yuv for each depth
  TComYuv**               m_ppcRecoYuvTemp; ///< Temporary Reconstruction Yuv for each depth
  TComYuv**               m_ppcOrigYuv;     ///< Original Yuv for each depth

#if H_3D_DBBP
  TComYuv**               m_ppcOrigYuvDBBP;
#endif
  
  //  Data : encoder control
  Bool                    m_bEncodeDQP;
  Bool                    m_stillToCodeChromaQpOffsetFlag; //indicates whether chroma QP offset flag needs to coded at this particular CU granularity.
  Int                     m_cuChromaQpOffsetIdxPlus1; // if 0, then cu_chroma_qp_offset_flag will be 0, otherwise cu_chroma_qp_offset_flag will be 1.

  //  Access channel
  TEncCfg*                m_pcEncCfg;
  TEncSearch*             m_pcPredSearch;
  TComTrQuant*            m_pcTrQuant;
  TComRdCost*             m_pcRdCost;

  TEncEntropy*            m_pcEntropyCoder;
  TEncBinCABAC*           m_pcBinCABAC;

  // SBAC RD
  TEncSbac***             m_pppcRDSbacCoder;
  TEncSbac*               m_pcRDGoOnSbacCoder;
  TEncRateCtrl*           m_pcRateCtrl;

#if KWU_RC_MADPRED_E0227
  UInt                    m_LCUPredictionSAD;
  Int                     m_addSADDepth;
  Int                     m_temporalSAD;
  Int                     m_spatialSAD;
#endif
public:
  /// copy parameters from encoder class
  Void  init                ( TEncTop* pcEncTop );

  /// create internal buffers
  Void  create              ( UChar uhTotalDepth, UInt iMaxWidth, UInt iMaxHeight, ChromaFormat chromaFormat );

  /// destroy internal buffers
  Void  destroy             ();

  /// CTU analysis function
  Void  compressCtu         ( TComDataCU*  pCtu );

  /// CTU encoding function
  Void  encodeCtu           ( TComDataCU*  pCtu );

  Int   updateCtuDataISlice ( TComDataCU* pCtu, Int width, Int height );
#if KWU_RC_MADPRED_E0227
  UInt getLCUPredictionSAD() { return m_LCUPredictionSAD; }
#endif

protected:
  Void  finishCU            ( TComDataCU*  pcCU, UInt uiAbsPartIdx );
#if AMP_ENC_SPEEDUP
  Void  xCompressCU         ( TComDataCU*& rpcBestCU, TComDataCU*& rpcTempCU, UInt uiDepth DEBUG_STRING_FN_DECLARE(sDebug), PartSize eParentPartSize = NUMBER_OF_PART_SIZES );
#else
  Void  xCompressCU         ( TComDataCU*& rpcBestCU, TComDataCU*& rpcTempCU, UInt uiDepth        );
#endif
  Void  xEncodeCU           ( TComDataCU*  pcCU, UInt uiAbsPartIdx,           UInt uiDepth        );

  Int   xComputeQP          ( TComDataCU* pcCU, UInt uiDepth );
  Void  xCheckBestMode      ( TComDataCU*& rpcBestCU, TComDataCU*& rpcTempCU, UInt uiDepth DEBUG_STRING_FN_DECLARE(sParent) DEBUG_STRING_FN_DECLARE(sTest) DEBUG_STRING_PASS_INTO(Bool bAddSizeInfo=true));

  Void  xCheckRDCostMerge2Nx2N( TComDataCU*& rpcBestCU, TComDataCU*& rpcTempCU DEBUG_STRING_FN_DECLARE(sDebug), Bool *earlyDetectionSkipMode );

#if AMP_MRG
#if  H_3D_FAST_TEXTURE_ENCODING
  Void  xCheckRDCostInter   ( TComDataCU*& rpcBestCU, TComDataCU*& rpcTempCU, PartSize ePartSize,  Bool bFMD, Bool bUseMRG = false  ) ;
#else
  Void  xCheckRDCostInter   ( TComDataCU*& rpcBestCU, TComDataCU*& rpcTempCU, PartSize ePartSize DEBUG_STRING_FN_DECLARE(sDebug), Bool bUseMRG = false  );
#endif
#else
  Void  xCheckRDCostInter   ( TComDataCU*& rpcBestCU, TComDataCU*& rpcTempCU, PartSize ePartSize  );
#endif
#if H_3D_DBBP
  Void  xInvalidateOriginalSegments( TComYuv* pOrigYuv, TComYuv* pOrigYuvTemp, Bool* pMask, UInt uiValidSegment );
  Void  xCheckRDCostInterDBBP( TComDataCU*& rpcBestCU, TComDataCU*& rpcTempCU, Bool bUseMRG = false );
#endif
#if H_3D
  Void  xCheckRDCostDIS   ( TComDataCU*& rpcBestCU, TComDataCU*& rpcTempCU, PartSize ePartSize  );
#endif
#if H_3D_DIM
  Void  xCheckRDCostIntra   ( TComDataCU*& rpcBestCU, TComDataCU*& rpcTempCU, PartSize ePartSize, Bool bOnlyIVP );
#else
  Void  xCheckRDCostIntra   ( TComDataCU *&rpcBestCU,
                              TComDataCU *&rpcTempCU,
                              Double      &cost,
                              PartSize     ePartSize
                              DEBUG_STRING_FN_DECLARE(sDebug)
                            );
#endif
  Void  xCheckDQP           ( TComDataCU*  pcCU );

  Void  xCheckIntraPCM      ( TComDataCU*& rpcBestCU, TComDataCU*& rpcTempCU                      );
  Void  xCopyAMVPInfo       ( AMVPInfo* pSrc, AMVPInfo* pDst );
  Void  xCopyYuv2Pic        (TComPic* rpcPic, UInt uiCUAddr, UInt uiAbsPartIdx, UInt uiDepth, UInt uiSrcDepth );
  Void  xCopyYuv2Tmp        ( UInt uhPartUnitIdx, UInt uiDepth );

  Bool getdQPFlag           ()                        { return m_bEncodeDQP;        }
  Void setdQPFlag           ( Bool b )                { m_bEncodeDQP = b;           }

  Bool getCodeChromaQpAdjFlag() { return m_stillToCodeChromaQpOffsetFlag; }
  Void setCodeChromaQpAdjFlag( Bool b ) { m_stillToCodeChromaQpOffsetFlag = b; }

#if ADAPTIVE_QP_SELECTION
  // Adaptive reconstruction level (ARL) statistics collection functions
  Void xCtuCollectARLStats(TComDataCU* pCtu);
  Int  xTuCollectARLStats(TCoeff* rpcCoeff, TCoeff* rpcArlCoeff, Int NumCoeffInCU, Double* cSum, UInt* numSamples );
#endif

#if AMP_ENC_SPEEDUP
#if AMP_MRG
  Void deriveTestModeAMP (TComDataCU *pcBestCU, PartSize eParentPartSize, Bool &bTestAMP_Hor, Bool &bTestAMP_Ver, Bool &bTestMergeAMP_Hor, Bool &bTestMergeAMP_Ver);
#else
  Void deriveTestModeAMP (TComDataCU *pcBestCU, PartSize eParentPartSize, Bool &bTestAMP_Hor, Bool &bTestAMP_Ver);
#endif
#endif

  Void  xFillPCMBuffer     ( TComDataCU* pCU, TComYuv* pOrgYuv );
};

//! \}

#endif // __TENCMB__
