//-----------------------------------------------------------------------------
// File: D3DFile.h
//
// Desc: Support code for loading DirectX .X files.
//
// Copyright (c) 1997-2000 Microsoft Corporation. All rights reserved.
//-----------------------------------------------------------------------------
#ifndef D3DFILE_H
#define D3DFILE_H
#include <tchar.h>
#include <d3d8.h>
#include <d3dx8.h>




//-----------------------------------------------------------------------------
// Name: class CD3DMesh
// Desc: Class for loading and rendering file-based meshes
//-----------------------------------------------------------------------------
class CD3DMesh
{
public:
	TCHAR               m_strName[512];

    LPD3DXMESH          m_pSysMemMesh;    // SysMem mesh, lives through resize
    LPD3DXMESH          m_pLocalMesh;     // Local mesh, rebuilt on resize
    
    DWORD               m_dwNumMaterials; // Materials for the mesh
    D3DMATERIAL8*       m_pMaterials;
    LPDIRECT3DTEXTURE8* m_pTextures;
	BOOL                m_bUseMaterials;

public:
	// Rendering
    HRESULT Render( LPDIRECT3DDEVICE8 pd3dDevice, 
		            BOOL bDrawOpaqueSubsets = TRUE,
		            BOOL bDrawAlphaSubsets = TRUE );

	// Mesh access
    LPD3DXMESH GetSysMemMesh() { return m_pSysMemMesh; }
    LPD3DXMESH GetLocalMesh()  { return m_pLocalMesh; }

	// Rendering options
	VOID    UseMeshMaterials( BOOL bFlag ) { m_bUseMaterials = bFlag; }
	HRESULT SetFVF( LPDIRECT3DDEVICE8 pd3dDevice, DWORD dwFVF );

	// Initializing
    HRESULT RestoreDeviceObjects( LPDIRECT3DDEVICE8 pd3dDevice );
    HRESULT InvalidateDeviceObjects();

	// Creation/destruction
	HRESULT Create( LPDIRECT3DDEVICE8 pd3dDevice, TCHAR* strFilename );
	HRESULT Create( LPDIRECT3DDEVICE8 pd3dDevice, LPDIRECTXFILEDATA pFileData );
	HRESULT Destroy();

    CD3DMesh( TCHAR* strName = _T("CD3DFile_Mesh") );
    virtual ~CD3DMesh();
};




//-----------------------------------------------------------------------------
// Name: class CD3DFrame
// Desc: Class for loading and rendering file-based meshes
//-----------------------------------------------------------------------------
class CD3DFrame
{
public:
	TCHAR      m_strName[512];
	D3DXMATRIX m_mat;
	CD3DMesh*  m_pMesh;
	TCHAR      m_strMeshName[512];

	CD3DFrame* m_pNext;
	CD3DFrame* m_pChild;

public:
	// Matrix access
    VOID        SetMatrix( D3DXMATRIX* pmat ) { m_mat = *pmat; }
    D3DXMATRIX* GetMatrix()                   { return &m_mat; }

	CD3DMesh*   FindMesh( TCHAR* strMeshName );
	CD3DFrame*  FindFrame( TCHAR* strFrameName );
    BOOL        EnumMeshes( BOOL (*EnumMeshCB)(CD3DMesh*,VOID*), 
		                    VOID* pContext );

	HRESULT Destroy();
    HRESULT RestoreDeviceObjects( LPDIRECT3DDEVICE8 pd3dDevice );
    HRESULT InvalidateDeviceObjects();
    HRESULT Render( LPDIRECT3DDEVICE8 pd3dDevice, 
		            BOOL bDrawOpaqueSubsets = TRUE,
		            BOOL bDrawAlphaSubsets = TRUE );
	
	CD3DFrame( TCHAR* strName = _T("CD3DFile_Frame") );
	virtual ~CD3DFrame();
};




//-----------------------------------------------------------------------------
// Name: class CD3DFile
// Desc: Class for loading and rendering file-based meshes
//-----------------------------------------------------------------------------
class CD3DFile : public CD3DFrame
{
	HRESULT LoadMesh( LPDIRECT3DDEVICE8 pd3dDevice, LPDIRECTXFILEDATA pFileData, 
					  CD3DFrame* pParentFrame );
	HRESULT LoadFrame( LPDIRECT3DDEVICE8 pd3dDevice, LPDIRECTXFILEDATA pFileData, 
		               CD3DFrame* pParentFrame );
public:
	HRESULT Create( LPDIRECT3DDEVICE8 pd3dDevice, TCHAR* strFilename );
	HRESULT Render( LPDIRECT3DDEVICE8 pd3dDevice );

	CD3DFile() : CD3DFrame( _T("CD3DFile_Root") ) {}
};




#endif