#ifndef D3DGeometryItem_h_
#define D3DGeometryItem_h_

#if defined(D3D9_SUPPORTED)

#include <maya/MDagPath.h>
#include <maya/MObjectHandle.h>
#include <maya/MMessage.h> // For monitoring geometry list nodes
#include <list>

	#define WIN32_LEAN_AND_MEAN
	#include <d3d9.h>
	#include <d3dx9.h>

//
// A class to manage populate and render D3D buffers representing Maya geometry
//
class D3DGeometry
{
public:
	D3DGeometry()
		: VertexBuffer( NULL), IndexBuffer( NULL), FVF( 0), Stride( 0), NumVertices( 0), NumIndices( 0)
	{
	}
	~D3DGeometry() 
	{ 
		Release(); 
	}
	bool Populate( const MDagPath& dagPath, LPDIRECT3DDEVICE9 D3D);
	bool Render( LPDIRECT3DDEVICE9 D3D)
	{
	    D3D->SetStreamSource( 0, VertexBuffer, 0, Stride );
	    D3D->SetFVF( FVF);
		D3D->SetIndices( IndexBuffer); 
		D3D->DrawIndexedPrimitive( D3DPT_TRIANGLELIST, 0, 0, NumVertices, 0, NumIndices / 3);
		return true;
	}
	void Release()
	{
		if( VertexBuffer) 
			VertexBuffer->Release(); 
		if( IndexBuffer) 
			IndexBuffer->Release();	
		VertexBuffer = NULL;
		IndexBuffer = NULL;
	}

private:
	LPDIRECT3DVERTEXBUFFER9 VertexBuffer;
	LPDIRECT3DINDEXBUFFER9	IndexBuffer;
	unsigned int			NumVertices;
	unsigned int			NumIndices;
	DWORD					FVF;
	int						Stride;
};

// Geometry item use to associate a D3DGeometry with Maya geometry
//
struct GeometryItem {
	MDagPath				m_objectPath;
	D3DGeometry*			m_objectGeometry;
	MCallbackId				m_objectDeleteMonitor;
	MCallbackId				m_objectDirtyMonitor;
	MCallbackId				m_objectChangeMonitor;
};
typedef std::list<GeometryItem*> GeometryItemList;

#endif

#endif /* D3DGeometryItem_h_ */

//-
// ==========================================================================
// Copyright (C) 1995 - 2006 Autodesk, Inc. and/or its licensors.  All 
// rights reserved.
//
// The coded instructions, statements, computer programs, and/or related 
// material (collectively the "Data") in these files contain unpublished 
// information proprietary to Autodesk, Inc. ("Autodesk") and/or its 
// licensors, which is protected by U.S. and Canadian federal copyright 
// law and by international treaties.
//
// The Data is provided for use exclusively by You. You have the right 
// to use, modify, and incorporate this Data into other products for 
// purposes authorized by the Autodesk software license agreement, 
// without fee.
//
// The copyright notices in the Software and this entire statement, 
// including the above license grant, this restriction and the 
// following disclaimer, must be included in all copies of the 
// Software, in whole or in part, and all derivative works of 
// the Software, unless such copies or derivative works are solely 
// in the form of machine-executable object code generated by a 
// source language processor.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND. 
// AUTODESK DOES NOT MAKE AND HEREBY DISCLAIMS ANY EXPRESS OR IMPLIED 
// WARRANTIES INCLUDING, BUT NOT LIMITED TO, THE WARRANTIES OF 
// NON-INFRINGEMENT, MERCHANTABILITY OR FITNESS FOR A PARTICULAR 
// PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE, OR 
// TRADE PRACTICE. IN NO EVENT WILL AUTODESK AND/OR ITS LICENSORS 
// BE LIABLE FOR ANY LOST REVENUES, DATA, OR PROFITS, OR SPECIAL, 
// DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES, EVEN IF AUTODESK 
// AND/OR ITS LICENSORS HAS BEEN ADVISED OF THE POSSIBILITY 
// OR PROBABILITY OF SUCH DAMAGES.
//
// ==========================================================================
//+