D3DGeometryItem.h

#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 1995,2006,2008 Autodesk, Inc. All rights reserved.
//
// Use of this software is subject to the terms of the Autodesk
// license agreement provided at the time of installation or download,
// or which otherwise accompanies this software in either electronic
// or hard copy form.
// ==========================================================================
//+