/* 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.  
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 * Copyright (c) 2010-2012, ITU/ISO/IEC
 * All rights reserved.
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 * modification, are permitted provided that the following conditions are met:
 *
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 *    this list of conditions and the following disclaimer.
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 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
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 *    be used to endorse or promote products derived from this software without
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 */

/** \file     TDecCu.h
    \brief    CU decoder class (header)
*/

#ifndef __TDECCU__
#define __TDECCU__

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000

#include "TLibCommon/TComTrQuant.h"
#include "TLibCommon/TComPrediction.h"
#include "TDecEntropy.h"

//! \ingroup TLibDecoder
//! \{

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

/// CU decoder class
class TDecCu
{
private:
  UInt                m_uiMaxDepth;       ///< max. number of depth
  TComYuv**           m_ppcYuvResi;       ///< array of residual buffer
  TComYuv**           m_ppcYuvReco;       ///< array of prediction & reconstruction buffer
#if H3D_IVRP
  TComYuv**           m_ppcYuvResPred;    ///< residual prediction buffer
#endif
  TComDataCU**        m_ppcCU;            ///< CU data array

  // access channel
  TComTrQuant*        m_pcTrQuant;
  TComPrediction*     m_pcPrediction;
  TDecEntropy*        m_pcEntropyDecoder;

  Bool                m_bDecodeDQP;
  
public:
  TDecCu();
  virtual ~TDecCu();
  
  /// initialize access channels
  Void  init                    ( TDecEntropy* pcEntropyDecoder, TComTrQuant* pcTrQuant, TComPrediction* pcPrediction );
  
  /// create internal buffers
  Void  create                  ( UInt uiMaxDepth, UInt uiMaxWidth, UInt uiMaxHeight );
  
  /// destroy internal buffers
  Void  destroy                 ();

  /// decode CU information
  Void  decodeCU                ( TComDataCU* pcCU, UInt& ruiIsLast );
  
  /// reconstruct CU information
  Void  decompressCU            ( TComDataCU* pcCU );
  
protected:
  
  Void xDecodeCU                ( TComDataCU* pcCU,                       UInt uiAbsPartIdx, UInt uiDepth, UInt &ruiIsLast);
  Void xFinishDecodeCU          ( TComDataCU* pcCU,                       UInt uiAbsPartIdx, UInt uiDepth, UInt &ruiIsLast);
  Bool xDecodeSliceEnd          ( TComDataCU* pcCU,                       UInt uiAbsPartIdx, UInt uiDepth);
  Void xDecompressCU            ( TComDataCU* pcCU, TComDataCU* pcCUCur,  UInt uiAbsPartIdx, UInt uiDepth );
  
  Void xReconInter              ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
  
  Void  xReconIntraQT           ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
  Void  xIntraRecLumaBlk        ( TComDataCU* pcCU, UInt uiTrDepth, UInt uiAbsPartIdx, TComYuv* pcRecoYuv, TComYuv* pcPredYuv, TComYuv* pcResiYuv );
  Void  xIntraRecChromaBlk      ( TComDataCU* pcCU, UInt uiTrDepth, UInt uiAbsPartIdx, TComYuv* pcRecoYuv, TComYuv* pcPredYuv, TComYuv* pcResiYuv, UInt uiChromaId );
  Void  xIntraRecQT             ( TComDataCU* pcCU, UInt uiTrDepth, UInt uiAbsPartIdx, TComYuv* pcRecoYuv, TComYuv* pcPredYuv, TComYuv* pcResiYuv );
  
  Void  xReconPCM               ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );

  Void xDecodeInterTexture      ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
  Void xDecodePCMTexture        ( TComDataCU* pcCU, UInt uiPartIdx, Pel *piPCM, Pel* piReco, UInt uiStride, UInt uiWidth, UInt uiHeight, TextType ttText);
  
  Void xCopyToPic               ( TComDataCU* pcCU, TComPic* pcPic, UInt uiZorderIdx, UInt uiDepth );

  Void  xIntraLumaRecQT         ( TComDataCU* pcCU, UInt uiTrDepth, UInt uiAbsPartIdx, TComYuv* pcRecoYuv, TComYuv* pcPredYuv, TComYuv* pcResiYuv );
  Void  xIntraChromaRecQT       ( TComDataCU* pcCU, UInt uiTrDepth, UInt uiAbsPartIdx, TComYuv* pcRecoYuv, TComYuv* pcPredYuv, TComYuv* pcResiYuv );

  Bool getdQPFlag               ()                        { return m_bDecodeDQP;        }
  Void setdQPFlag               ( Bool b )                { m_bDecodeDQP = b;           }
#if LOSSLESS_CODING 
  Void xFillPCMBuffer           (TComDataCU* pCU, UInt absPartIdx, UInt depth);
#endif
#if RWTH_SDC_DLT_B0036
  Void  xAnalyzeSegmentsSDC       ( Pel* pOrig,
                                   UInt uiStride,
                                   UInt uiSize,
                                   Pel* rpSegMeans,
                                   UInt uiNumSegments,
                                   Bool* pMask,
                                   UInt uiMaskStride );
  
  Void xReconIntraSDC           ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
#endif
};

//! \}

#endif