ContextModel3DBuffer.h

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#ifndef __CONTEXTMODEL3DBUFFER__
#define __CONTEXTMODEL3DBUFFER__

#include <stdio.h>
#include <memory.h>

#include "CommonDef.h"
#include "ContextModel.h"


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

class ContextModel3DBuffer
{
protected:
  ContextModel* m_contextModel; 
  const UInt    m_sizeX;        
  const UInt    m_sizeXY;       
  const UInt    m_sizeXYZ;      

public:
  ContextModel3DBuffer  ( UInt uiSizeZ, UInt uiSizeY, UInt uiSizeX, ContextModel *basePtr, Int &count );
  ~ContextModel3DBuffer () {}

  // access functions
  ContextModel& get( UInt uiZ, UInt uiY, UInt uiX )
  {
    return  m_contextModel[ uiZ * m_sizeXY + uiY * m_sizeX + uiX ];
  }
  ContextModel* get( UInt uiZ, UInt uiY )
  {
    return &m_contextModel[ uiZ * m_sizeXY + uiY * m_sizeX ];
  }
  ContextModel* get( UInt uiZ )
  {
    return &m_contextModel[ uiZ * m_sizeXY ];
  }

  // initialization & copy functions
  Void initBuffer( SliceType eSliceType, Int iQp, UChar* ctxModel );          

  UInt calcCost( SliceType sliceType, Int qp, UChar* ctxModel );      

  Void copyFrom( const ContextModel3DBuffer* src )
  {
    assert( m_sizeXYZ == src->m_sizeXYZ );
    ::memcpy( m_contextModel, src->m_contextModel, sizeof(ContextModel) * m_sizeXYZ );
  }
};


#endif // _HM_CONTEXT_MODEL_3DBUFFER_H_