text: // Copyright (C) 2002-2012 Nikolaus Gebhardt / Thomas Alten
  // This file is part of the "Irrlicht Engine".
  // For conditions of distribution and use, see copyright notice in irrlicht.h
  
  #ifndef __I_Z2_BUFFER_H_INCLUDED__
  #define __I_Z2_BUFFER_H_INCLUDED__
  
  #include "IReferenceCounted.h"
  #include "dimension2d.h"
  #include "S4DVertex.h"
  
  namespace irr
  {
  namespace video
  {
  	class IDepthBuffer : public virtual IReferenceCounted
  	{
  	public:
  
  		//! destructor
  		virtual ~IDepthBuffer() {};
  
  		//! clears the zbuffer
  		virtual void clear() = 0;
  
  		//! sets the new size of the zbuffer
  		virtual void setSize(const core::dimension2d<u32>& size) = 0;
  
  		//! returns the size of the zbuffer
  		virtual const core::dimension2d<u32>& getSize() const = 0;
  
  		//! locks the zbuffer
  		virtual void* lock() = 0;
  
  		//! unlocks the zbuffer
  		virtual void unlock() = 0;
  
  		//! returns pitch of depthbuffer (in bytes)
  		virtual u32 getPitch() const = 0;
  
  	};
  
  
  	//! creates a ZBuffer
  	IDepthBuffer* createDepthBuffer(const core::dimension2d<u32>& size);
  
  	class IStencilBuffer : public virtual IReferenceCounted
  	{
  	public:
  
  		//! destructor
  		virtual ~IStencilBuffer() {};
  
  		//! clears the zbuffer
  		virtual void clear() = 0;
  
  		//! sets the new size of the zbuffer
  		virtual void setSize(const core::dimension2d<u32>& size) = 0;
  
  		//! returns the size of the zbuffer
  		virtual const core::dimension2d<u32>& getSize() const = 0;
  
  		//! locks the zbuffer
  		virtual void* lock() = 0;
  
  		//! unlocks the zbuffer
  		virtual void unlock() = 0;
  
  		//! returns pitch of depthbuffer (in bytes)
  		virtual u32 getPitch() const = 0;
  
  	};
  
  
  	//! creates a Stencil Buffer
  	IStencilBuffer* createStencilBuffer(const core::dimension2d<u32>& size);
  
  } // end namespace video
  } // end namespace irr
  
  #endif
  
  