TrVisStaticSharedPtr.h

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// Copyright (C) 2002-2022, Open Design Alliance (the "Alliance"). 
// All rights reserved. 
// 
// This software and its documentation and related materials are owned by 
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// programs incorporating this software must include the following statement 
// with their copyright notices:
//   
//   This application incorporates Open Design Alliance software pursuant to a license 
//   agreement with Open Design Alliance.
//   Open Design Alliance Copyright (C) 2002-2022 by Open Design Alliance. 
//   All rights reserved.
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// acknowledge and accept the above terms.
// GLES2 device static shared pointer
 
#ifndef ODTRVISSTATICSHAREDPTR
#define ODTRVISSTATICSHAREDPTR
 
#include "TD_PackPush.h"
 
#include "SharedPtr.h"
 
template <class T>
class OdStaticSharedPtr : public OdSharedPtr<T>
{
  protected:
    int m_realRefs;
  protected:
    T **accessObjPtr() { return reinterpret_cast<T**>(this); }
    int **accessRefPtr() { return reinterpret_cast<int**>(this) + 1; }
  public:
    OdStaticSharedPtr(T *pRef)
      : OdSharedPtr<T>(), m_realRefs(2)
    {
      *accessObjPtr() = pRef;
      *accessRefPtr() = &m_realRefs;
    }
    OdStaticSharedPtr& operator=(const OdStaticSharedPtr &other)
    {
      **this = *other;
      return *this;
    }
  private:
    T* detach() { return NULL; }
    OdStaticSharedPtr(const OdStaticSharedPtr &other) {}
};
 
template <class T>
class OdStaticDefSharedPtr : public OdStaticSharedPtr<T>
{
  protected:
    T m_realObj;
  public:
    OdStaticDefSharedPtr()
      : OdStaticSharedPtr<T>(&m_realObj)
    {
    }
    OdStaticDefSharedPtr(const OdStaticDefSharedPtr &other)
      : OdStaticSharedPtr<T>(&m_realObj)
    {
      m_realObj = *other;
    }
};
 
#include "TD_PackPop.h"
 
#endif // ODTRVISSTATICSHAREDPTR