96 lines
2.5 KiB
C++
96 lines
2.5 KiB
C++
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/*==========================================================================;
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*
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* Copyright (C) 1998 Microsoft Corporation. All Rights Reserved.
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*
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* File: hmgr.hpp
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* Content: Handle Manager header file
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*
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***************************************************************************/
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#ifndef _HMGR_HPP_
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#define _HMGR_HPP_
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#include "d3dtempl.hpp"
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//-----------------------------------------------------------------------------
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//
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// D3D Base object class. All objects that are referred to by handles
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// should inherit from this class
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//
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//-----------------------------------------------------------------------------
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class CD3DBaseObj
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{
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public:
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virtual ~CD3DBaseObj()
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{
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return;
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}
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private:
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};
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typedef CD3DBaseObj* LPD3DBASEOBJ;
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//-----------------------------------------------------------------------------
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//
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// D3D Handle Class.
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//
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//-----------------------------------------------------------------------------
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struct CHandle
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{
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CHandle()
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{
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m_Next = 0;
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m_pObj = NULL;
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#if DBG
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m_tag = 0;
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#endif
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}
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~CHandle()
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{
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delete m_pObj;
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}
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DWORD m_Next; // Used to make list of free handles
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LPD3DBASEOBJ m_pObj;
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#if DBG
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// Non zero means that it has been allocated
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DWORD m_tag;
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#endif
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};
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const DWORD __INVALIDHANDLE = 0xFFFFFFFF;
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typedef GArrayT<CHandle> CHandleArray;
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//-----------------------------------------------------------------------------
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//
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// D3D HandleFactory Class:
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//
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// This handle factory assumes that the handle returned can be directly used
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// an index into the handle array. This will not work if there is some
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// munging required for the handle (in the vertex shader case)
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//
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//-----------------------------------------------------------------------------
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class CHandleFactory
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{
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public:
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CHandleFactory();
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CHandleFactory(DWORD dwGrowSize);
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DWORD GetSize() const { return m_Handles.GetSize(); }
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virtual DWORD CreateNewHandle( LPD3DBASEOBJ pObj );
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virtual LPD3DBASEOBJ GetObject( DWORD dwHandle ) const;
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virtual UINT HandleFromIndex( DWORD index) const {return index;}
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// Sets new object pointer. Returns TRUE if success. Old object is not deleted
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virtual BOOL SetObject( DWORD dwHandle, LPD3DBASEOBJ );
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virtual void ReleaseHandle(DWORD handle, BOOL bDeleteObject = TRUE);
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protected:
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CHandleArray m_Handles;
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DWORD m_Free; // Header for free elements in the array
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};
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#endif //_HMGR_HPP_
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