116 lines
2.8 KiB
C++
116 lines
2.8 KiB
C++
/*==========================================================================;
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*
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* Copyright (C) 1995-2000 Microsoft Corporation. All Rights Reserved.
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*
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* File: d3dtempl.hpp
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* Content: Direct3D templates include file
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*
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*
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***************************************************************************/
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#ifndef __D3DTEMPL_HPP
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#define __D3DTEMPL_HPP
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#include <d3dutil.h>
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#include "d3dmem.h"
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//--------------------------------------------------------------------------
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//
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// Template for growable arrays
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//
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//--------------------------------------------------------------------------
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template <class ARRAY_ELEMENT>
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class GArrayT
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{
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public:
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GArrayT()
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{
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m_pArray = NULL;
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m_dwArraySize = 0;
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m_dwGrowSize = 8;
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}
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~GArrayT()
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{
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if( m_pArray )
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{
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DDASSERT( (m_dwArraySize != 0) && (m_pArray != NULL) );
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delete[] m_pArray;
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}
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else
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{
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DDASSERT( (m_dwArraySize == 0) && (m_pArray == NULL) );
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}
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}
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LPVOID GetArrayPointer() const {return m_pArray;}
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virtual void SetGrowSize( DWORD dwGrowSize)
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{
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m_dwGrowSize = dwGrowSize;
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}
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#if 0
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virtual HRESULT Init( DWORD dwInitialSize, DWORD dwGrowSize)
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{
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m_pArray = AllocArray( dwInitialSize );
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if( m_pArray == NULL ) return E_OUTOFMEMORY;
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m_dwArraySize = dwInitialSize;
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m_dwGrowSize = dwGrowSize;
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return S_OK;
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}
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#endif
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virtual HRESULT Grow( DWORD dwIndex )
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{
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if( dwIndex < m_dwArraySize ) return S_OK;
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DWORD dwNewArraySize = m_dwArraySize;
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while( dwNewArraySize <= dwIndex ) dwNewArraySize += m_dwGrowSize;
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ARRAY_ELEMENT *pNewArray = AllocArray( dwNewArraySize );
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if( pNewArray == NULL ) return E_OUTOFMEMORY;
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for( DWORD i = 0; i<m_dwArraySize; i++ )
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{
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pNewArray[i] = m_pArray[i];
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m_pArray[i].m_pObj = NULL; // To prevent deleting the object
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}
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delete[] m_pArray;
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m_pArray = pNewArray;
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m_dwArraySize = dwNewArraySize;
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return S_OK;
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}
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virtual ARRAY_ELEMENT *AllocArray( DWORD dwSize ) const
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{
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return new ARRAY_ELEMENT[dwSize];
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}
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virtual ARRAY_ELEMENT& operator []( DWORD dwIndex ) const
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{
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DDASSERT(dwIndex < m_dwArraySize);
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return m_pArray[dwIndex];
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}
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virtual BOOL Check( DWORD dwIndex ) const
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{
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return (dwIndex < m_dwArraySize);
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}
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virtual DWORD GetSize() const
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{
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return m_dwArraySize;
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}
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virtual DWORD GetGrowSize() const
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{
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return m_dwGrowSize;
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}
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protected:
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ARRAY_ELEMENT *m_pArray;
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DWORD m_dwArraySize;
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DWORD m_dwGrowSize;
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};
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#endif //__D3DTEMPL_HPP
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