《精通DirectX 3D》 第二十一章 HLSL高级应用 06_HLSLTweening

《精通DirectX 3D》 第二十一章 HLSL高级应用 06_HLSLTweening

固定函数流水线实现方法：
《精通DirectX 3D》第十三章 网格模型高级技术 05_Tweening




HLSLTweening.fx

// ==============================================================
//  Desc: 效果文件
// ==============================================================


// --------------------------------------------------------------
//  全局变量
// --------------------------------------------------------------
float4x4 matWorldViewProj;    
float4x4 matWorld;    
float4   vecLightDir;
float4   vecEye;
float4   materialAmbient;
float4   materialDiffuse;
float     scale_sou;
float     scale_tar;


// -------------------------------------------------------------
//  顶点渲染器渲染输出结构
// -------------------------------------------------------------
struct  VS_OUTPUT
{
   float4 Pos   : POSITION;
   float4 Color : COLOR;
};


// -------------------------------------------------------------
//  顶点渲染器主函数
// -------------------------------------------------------------
VS_OUTPUT VS( float4 Pos_sou: POSITION0, float3 Normal_sou: NORMAL0,
              float4 Pos_tar: POSITION1, float3 Normal_tar: NORMAL1 )
{
    VS_OUTPUT Out    =  (VS_OUTPUT)  0 ; 

     // 根据各自的权重混合源网格和目标网格顶点坐标
    float4 Pos  =  scale_sou  *  Pos_sou  +  scale_tar  *  Pos_tar;
    Out.Pos     =  mul(Pos, matWorldViewProj);                
    
     // 根据各自的权重混合源网格和目标网格顶点法线
    float3 Normal  =  scale_sou  *  Normal_sou  +  scale_tar  *  Normal_tar;    
   
     // 标准化光的方向
    float3 LightDir  =  normalize( vecLightDir );
   
     // 计算观察方向向量, 并标准
    float3 PosWorld  =  normalize( mul(Pos, matWorld) );
    float3 ViewDir   =  normalize( vecEye  -  PosWorld );
   
     // 计算并标准化世界空间中的顶点法线
    float3 NormalWorld  =  normalize( mul(Normal, matWorld) );
    
     // 计算漫反射颜色
    float4 diff  =  saturate( dot(NormalWorld, LightDir));
  
     // 计算顶点颜色 
    float4 diffuseColor   =  {  1.0f ,  1.0f ,  1.0f ,  1.0f };   
    float4 ambientColor   =  {  0.5f ,  0.5f ,  0.5f ,  1.0f };  
    Out.Color  =  ambientColor  *  materialAmbient  +  diffuseColor  *  diff  *  materialDiffuse; 

     return  Out;
}


// -------------------------------------------------------------
//  像素渲染器渲染输出结构
// -------------------------------------------------------------
struct  PS_OUTPUT
{
    float4 RGBColor : COLOR0;  
};


// -------------------------------------------------------------
//  像素渲染器主函数
// -------------------------------------------------------------
PS_OUTPUT PS( VS_OUTPUT In ) 
{ 
    PS_OUTPUT Output;

    
    Output.RGBColor  =  In.Color;

     return  Output;
}

// --------------------------------------------------------------
//  技术
// --------------------------------------------------------------
technique TShader
{
    pass P0
    {
        VertexShader  =  compile vs_2_0 VS();
        PixelShader   =  compile ps_2_0 PS();
    }
}

//=============================================================================
// Desc: 主程序源文件
//=============================================================================
#include "dxstdafx.h"
#include "resource.h"

//#define DEBUG_VS   // Uncomment this line to debug vertex shaders 
//#define DEBUG_PS   // Uncomment this line to debug pixel shaders 

//-----------------------------------------------------------------------------
// 全局变量
//-----------------------------------------------------------------------------
ID3DXFont*                 g_pFont = NULL;           //ID3DXFont字体对象
ID3DXSprite*               g_pTextSprite = NULL;     //ID3DXSprite文本精灵对象
bool                        g_bShowHelp =  true ;       //标识是否显示简单说明文本

CDXUTDialogResourceManager g_DialogResourceManager;  //对话框资源管理器
CD3DSettingsDlg            g_SettingsDlg;            //Direct3D设备设置对话框
CDXUTDialog                g_HUD;                    //对话框
CDXUTDialog                g_SampleUI;               //对话框

LPD3DXMESH                 g_pSourceMesh;            //源网格模型
LPD3DXMESH                 g_pTargetMesh;            //目标网格模型

LPDIRECT3DVERTEXBUFFER9    g_pDolphinVB1;            //源网格模型顶点缓冲区
LPDIRECT3DVERTEXBUFFER9    g_pDolphinVB2;            //源网格模型顶点缓冲区
LPDIRECT3DINDEXBUFFER9     g_pDolphinIB;             //网格模型索引缓冲区
DWORD                      g_dwNumDolphinVertices;   //顶点数
DWORD                      g_dwNumDolphinFaces;      //面数

LPD3DXEFFECT                  g_pEffect = NULL;             //效果
LPDIRECT3DVERTEXDECLARATION9  g_pDolphinVertexDeclaration;  //顶点声明

D3DXMATRIXA16              g_matWorld, g_matView, g_matProject;

//顶点结构
struct  CUSTOMVERTEX
{
    D3DXVECTOR3 position;    //顶点位置
    D3DXVECTOR3 normal;      //顶点法线
};

//-----------------------------------------------------------------------------
// 控件ID
//-----------------------------------------------------------------------------
#define  IDC_TOGGLEFULLSCREEN      1
#define  IDC_TOGGLEREF             2
#define  IDC_CHANGEDEVICE          3


//-----------------------------------------------------------------------------
// Desc: 函数声明
//------------------------------------------------------------------------------
bool     CALLBACK IsDeviceAcceptable( D3DCAPS9* pCaps, D3DFORMAT AdapterFormat, D3DFORMAT BackBufferFormat,  bool  bWindowed,  void * pUserContext );
bool     CALLBACK ModifyDeviceSettings( DXUTDeviceSettings* pDeviceSettings,  const  D3DCAPS9* pCaps,  void * pUserContext );
HRESULT CALLBACK OnCreateDevice( IDirect3DDevice9* pd3dDevice,  const  D3DSURFACE_DESC* pBackBufferSurfaceDesc,  void * pUserContext );
HRESULT CALLBACK OnResetDevice( IDirect3DDevice9* pd3dDevice,  const  D3DSURFACE_DESC* pBackBufferSurfaceDesc,  void * pUserContext );
void     CALLBACK OnFrameMove( IDirect3DDevice9* pd3dDevice,  double  fTime,  float  fElapsedTime,  void * pUserContext );
void     CALLBACK OnFrameRender( IDirect3DDevice9* pd3dDevice,  double  fTime,  float  fElapsedTime,  void * pUserContext );
LRESULT CALLBACK MsgProc( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam,  bool * pbNoFurtherProcessing,  void * pUserContext );
void     CALLBACK KeyboardProc( UINT nChar,  bool  bKeyDown,  bool  bAltDown,  void * pUserContext );
void     CALLBACK OnGUIEvent( UINT nEvent,  int  nControlID, CDXUTControl* pControl,  void * pUserContext );
void     CALLBACK OnLostDevice(  void * pUserContext );
void     CALLBACK OnDestroyDevice(  void * pUserContext );

void     InitApp();
void     RenderText();


//-----------------------------------------------------------------------------
// Desc: 入口函数
//-----------------------------------------------------------------------------
INT WINAPI WinMain( HINSTANCE, HINSTANCE, LPSTR,  int  )
{
     //为Debug配置启用运行时内存检查功能
#if  defined(DEBUG) | defined(_DEBUG)
    _CrtSetDbgFlag( _CRTDBG_ALLOC_MEM_DF | _CRTDBG_LEAK_CHECK_DF );
#endif

     //设置回调函数
    DXUTSetCallbackDeviceCreated( OnCreateDevice );
    DXUTSetCallbackDeviceReset( OnResetDevice );
    DXUTSetCallbackDeviceLost( OnLostDevice );
    DXUTSetCallbackDeviceDestroyed( OnDestroyDevice );
    DXUTSetCallbackMsgProc( MsgProc );
    DXUTSetCallbackKeyboard( KeyboardProc );
    DXUTSetCallbackFrameRender( OnFrameRender );
    DXUTSetCallbackFrameMove( OnFrameMove );

     //应用程序相关的初始化
    InitApp();

     //初始化DXUT, 创建窗口, 创建Direct3D设备对象
    DXUTInit(  true ,  true ,  true  );
    DXUTSetCursorSettings(  true ,  true  );
    DXUTCreateWindow( L"HLSLTweening" );
    DXUTCreateDevice( D3DADAPTER_DEFAULT,  true , 640, 480, 
        IsDeviceAcceptable, ModifyDeviceSettings );

     //进入消息循环和场景渲染
    DXUTMainLoop();

     //在此进行应用程序相关的清除工作

     return  DXUTGetExitCode();
}


//-----------------------------------------------------------------------------
// Desc: 应用程序相关初始化
//-----------------------------------------------------------------------------
void  InitApp()
{
     //初始化对话框
    g_SettingsDlg.Init( &g_DialogResourceManager );
    g_HUD.Init( &g_DialogResourceManager );
    g_SampleUI.Init( &g_DialogResourceManager );

     //为g_HUD对话框设置消息处理函数,添加控件
    g_HUD.SetCallback( OnGUIEvent );  int  iY = 10; 
    g_HUD.AddButton( IDC_TOGGLEFULLSCREEN, L"Toggle full screen", 35, iY, 125, 22 );
    g_HUD.AddButton( IDC_TOGGLEREF, L"Toggle REF (F3)", 35, iY += 24, 125, 22 );
    g_HUD.AddButton( IDC_CHANGEDEVICE, L"Change device (F2)", 35, iY += 24, 125, 22, VK_F2 );
}


//-----------------------------------------------------------------------------
// Desc: 设备能力检查
//-----------------------------------------------------------------------------
bool  CALLBACK IsDeviceAcceptable( D3DCAPS9* pCaps, D3DFORMAT AdapterFormat, 
                                  D3DFORMAT BackBufferFormat,  bool  bWindowed, 
                                   void * pUserContext )
{
     //检查后台缓冲区格式是否支持Alpha混合等操作(post pixel blending operations)
    IDirect3D9* pD3D = DXUTGetD3DObject(); 
     if ( FAILED( pD3D->CheckDeviceFormat( pCaps->AdapterOrdinal, pCaps->DeviceType,
                    AdapterFormat, D3DUSAGE_QUERY_POSTPIXELSHADER_BLENDING, 
                    D3DRTYPE_TEXTURE, BackBufferFormat ) ) )
         return   false ;

     //检查当前设备支持顶点渲染器版本是否符合要求
     if ( pCaps->VertexShaderVersion < D3DVS_VERSION(2,0) )
         return  FALSE;

     return   true ;
}


//-----------------------------------------------------------------------------
// Desc: 修改Direct3D渲染设备设置
//-----------------------------------------------------------------------------
bool  CALLBACK ModifyDeviceSettings( DXUTDeviceSettings* pDeviceSettings, 
                                     const  D3DCAPS9* pCaps,  void * pUserContext )
{
     //如果不支持硬件顶点处理则使用软件顶点处理
     if ( (pCaps->DevCaps & D3DDEVCAPS_HWTRANSFORMANDLIGHT) == 0)
    {
        pDeviceSettings->BehaviorFlags = D3DCREATE_SOFTWARE_VERTEXPROCESSING;
    }

     //调试顶点渲染器需要参考设备或软件顶点处理
#ifdef DEBUG_VS
     if ( pDeviceSettings->DeviceType != D3DDEVTYPE_REF )
    {
        pDeviceSettings->BehaviorFlags &= ~D3DCREATE_HARDWARE_VERTEXPROCESSING;
        pDeviceSettings->BehaviorFlags &= ~D3DCREATE_PUREDEVICE;                            
        pDeviceSettings->BehaviorFlags |= D3DCREATE_SOFTWARE_VERTEXPROCESSING;
    }
#endif

     //调试像素渲染器需要参考设备
#ifdef DEBUG_PS
    pDeviceSettings->DeviceType = D3DDEVTYPE_REF;
#endif

     //如果使用参考设备,则弹出警告对话框
     static   bool  s_bFirstTime =  true ;
     if ( s_bFirstTime )
    {
        s_bFirstTime =  false ;
         if ( pDeviceSettings->DeviceType == D3DDEVTYPE_REF )
            DXUTDisplaySwitchingToREFWarning();
    }

     return   true ;
}


//-----------------------------------------------------------------------------
// Desc: 在此创建管理内存资源对象
//-----------------------------------------------------------------------------
HRESULT CALLBACK OnCreateDevice( IDirect3DDevice9* pd3dDevice, 
                                 const  D3DSURFACE_DESC* pBackBufferSurfaceDesc, 
                                 void * pUserContext )
{
    HRESULT hr;

    V_RETURN( g_DialogResourceManager.OnCreateDevice( pd3dDevice ) );
    V_RETURN( g_SettingsDlg.OnCreateDevice( pd3dDevice ) );
    
     //创建字体
    V_RETURN( D3DXCreateFont( pd3dDevice, 15, 0, FW_BOLD, 1, FALSE, DEFAULT_CHARSET, 
                         OUT_DEFAULT_PRECIS, DEFAULT_QUALITY, DEFAULT_PITCH | FF_DONTCARE, 
                         L"Arial", &g_pFont ) );

     //创建源网格模型
    V_RETURN( D3DXLoadMeshFromX( L"Source.x", D3DXMESH_MANAGED, 
                                   pd3dDevice, NULL, NULL, NULL, 
                                   NULL, &g_pSourceMesh));

     //创建目标网格模型
    V_RETURN( D3DXLoadMeshFromX( L"Target.x", D3DXMESH_MANAGED, 
                                   pd3dDevice, NULL, NULL, NULL, 
                                   NULL, &g_pTargetMesh ));

     //得到网格模型的顶点数目和面数目
    g_dwNumDolphinVertices = g_pSourceMesh->GetNumVertices();
    g_dwNumDolphinFaces    = g_pSourceMesh->GetNumFaces();

     //获取顶点缓冲区和索引缓冲区
    g_pSourceMesh->GetVertexBuffer( &g_pDolphinVB1 );
    g_pTargetMesh->GetVertexBuffer( &g_pDolphinVB2 );
    g_pSourceMesh->GetIndexBuffer( &g_pDolphinIB );

     //后面只需使用上面获取的顶点缓冲区和索引缓冲区渲染, 所以在此释放网格模型
    SAFE_RELEASE( g_pSourceMesh );
    SAFE_RELEASE( g_pTargetMesh );

     //顶点声明
    D3DVERTEXELEMENT9 declDolphin[] =
    {
         //第一组数据流是第一个网格模型
        { 0,  0, D3DDECLTYPE_FLOAT3, D3DDECLMETHOD_DEFAULT,  D3DDECLUSAGE_POSITION, 0}, 
        { 0, 12, D3DDECLTYPE_FLOAT3, D3DDECLMETHOD_DEFAULT,  D3DDECLUSAGE_NORMAL,   0}, 

         //第二组数据流是第二个网格模型
        { 1,  0, D3DDECLTYPE_FLOAT3, D3DDECLMETHOD_DEFAULT,  D3DDECLUSAGE_POSITION, 1}, 
        { 1, 12, D3DDECLTYPE_FLOAT3, D3DDECLMETHOD_DEFAULT,  D3DDECLUSAGE_NORMAL,   1}, 

        D3DDECL_END()
    };

     //创建顶点声明对象
    V_RETURN(pd3dDevice->CreateVertexDeclaration( declDolphin,
                                                 &g_pDolphinVertexDeclaration ));

     //创建效果
    V_RETURN(D3DXCreateEffectFromFile( pd3dDevice, L"HLSLTweening.fx", NULL, NULL, 
        D3DXSHADER_DEBUG, NULL, &g_pEffect, NULL ));

     return  S_OK;
}


//-----------------------------------------------------------------------------
// Desc: 在此创建默认内存类型资源对象
//-----------------------------------------------------------------------------
HRESULT CALLBACK OnResetDevice( IDirect3DDevice9* pd3dDevice, 
                                 const  D3DSURFACE_DESC* pBackBufferSurfaceDesc, 
                                 void * pUserContext )
{
    HRESULT hr;

    V_RETURN( g_DialogResourceManager.OnResetDevice() );
    V_RETURN( g_SettingsDlg.OnResetDevice() );

     //设置对话框位置和尺寸
    g_HUD.SetLocation( pBackBufferSurfaceDesc->Width-170, 0 );
    g_HUD.SetSize( 170, 170 );
    g_SampleUI.SetLocation( pBackBufferSurfaceDesc->Width-170, 
                            pBackBufferSurfaceDesc->Height-350 );
    g_SampleUI.SetSize( 170, 300 );

     //恢复字体
     if ( g_pFont )
        V_RETURN( g_pFont->OnResetDevice() );
   
     //创建ID3DXSprite接口对象
    V_RETURN( D3DXCreateSprite( pd3dDevice, &g_pTextSprite ) );

     //恢复效果对象
     if ( g_pEffect )
        V_RETURN( g_pEffect->OnResetDevice() );

     //构造观察矩阵
    D3DXVECTOR3 vEyePt( 0.0f, 0.0f,-8 );
    D3DXVECTOR3 vLookatPt( 0.0f, 0.0f, 0.0f );
    D3DXVECTOR3 vUpVec( 0.0f, 1.0f, 0.0f );
    D3DXMatrixLookAtLH( &g_matView, &vEyePt, &vLookatPt, &vUpVec );

     //构造投影矩阵
     float  fAspectRatio = ( float )pBackBufferSurfaceDesc->Width / pBackBufferSurfaceDesc->Height;
    D3DXMatrixPerspectiveFovLH( &g_matProject, D3DX_PI/4, fAspectRatio, 1.0f, 100.0f );
 
     //为效果设置摄影机位置参数
    D3DXVECTOR4 eyePos = D3DXVECTOR4(vEyePt.x, vEyePt.y, vEyePt.z, 0);
    g_pEffect->SetVector( "vecEye", &eyePos);

     //为效果设置光的方向参数
    D3DXVECTOR4 LightDirection( -1.0f, 0.0f, 1.0f, 0.0f ); 
    g_pEffect->SetVector( "vecLightDir", &LightDirection );

     //为效果设置材质参数
    D3DXVECTOR4 material  = D3DXVECTOR4( 0.27f, 0.30f, 0.65f, 1.0f );
    g_pEffect->SetVector( "materialAmbient", &material);
    g_pEffect->SetVector( "materialDiffuse", &material);

     return  S_OK;
}


//-----------------------------------------------------------------------------
// Desc: 更新场景
//-----------------------------------------------------------------------------
void  CALLBACK OnFrameMove( IDirect3DDevice9* pd3dDevice,  double  fTime, 
                            float  fElapsedTime,  void * pUserContext )
{
     //构造海豚网格模型世界矩阵, 使海豚沿圆周运动
     float  fKickFreq    = 2*( float )fTime;
     float  fPhase       = ( float )fTime/3;
    D3DXMATRIXA16 matDolphin, matTrans, matRotate1, matRotate2;
    D3DXMatrixScaling( &g_matWorld, 0.01f, 0.01f, 0.01f );
    D3DXMatrixRotationZ( &matRotate1, -cosf(fKickFreq)/6 );
    D3DXMatrixRotationY( &matRotate2, fPhase );
    D3DXMatrixTranslation( &matTrans, -5*sinf(fPhase), sinf(fKickFreq)/2, 10-10*cosf(fPhase) );
    g_matWorld = g_matWorld*matRotate1*matRotate2*matTrans;

     //为效果设置各矩阵参数
    D3DXMATRIX mWorldViewProj = g_matWorld * g_matView * g_matProject;
    g_pEffect->SetMatrix( "matWorldViewProj", &mWorldViewProj );
    g_pEffect->SetMatrix( "matWorld", &g_matWorld );

     //计算并设置权重(用于生成渐变网格)
     float  DolphinTimeFactor = ( float )(timeGetTime() % 2000) / 1000.0f;
     float  Scalar_tar = (DolphinTimeFactor<=1.0f)?DolphinTimeFactor:(2.0f-DolphinTimeFactor);
     float  Scalar_sou = 1 - Scalar_tar;
    g_pEffect->SetFloat( "scale_sou", Scalar_sou );
    g_pEffect->SetFloat( "scale_tar", Scalar_tar );
}


//-----------------------------------------------------------------------------
// Desc: 渲染场景
//-----------------------------------------------------------------------------
void  CALLBACK OnFrameRender( IDirect3DDevice9* pd3dDevice,  double  fTime, 
                             float  fElapsedTime,  void * pUserContext )
{
    HRESULT hr;
  
     //如果正在利用Direct3D设备设置对话框进行设置, 则不渲染场景
     if ( g_SettingsDlg.IsActive() )
    {
        g_SettingsDlg.OnRender( fElapsedTime );
         return ;
    }

     //清除后台颜色缓冲区和深度缓冲区
    V( pd3dDevice->Clear(0, NULL, D3DCLEAR_TARGET | D3DCLEAR_ZBUFFER, 
                         D3DCOLOR_ARGB(0, 45, 50, 170), 1.0f, 0) );

     //渲染场景
     if ( SUCCEEDED( pd3dDevice->BeginScene() ) )
    {
         //使用效果渲染海豚网格模型
        D3DXHANDLE hTechnique = g_pEffect->GetTechniqueByName( "TShader" );
        g_pEffect->SetTechnique( hTechnique );

        UINT nPasses;
        g_pEffect->Begin( &nPasses, 0 );
         for (UINT iPass = 0; iPass < nPasses; iPass++)
        {
            g_pEffect->BeginPass( iPass );
            pd3dDevice->SetVertexDeclaration( g_pDolphinVertexDeclaration );
            pd3dDevice->SetStreamSource( 0, g_pDolphinVB1, 0,  sizeof (CUSTOMVERTEX) );
            pd3dDevice->SetStreamSource( 1, g_pDolphinVB2, 0,  sizeof (CUSTOMVERTEX) );
            pd3dDevice->SetIndices( g_pDolphinIB );
            pd3dDevice->DrawIndexedPrimitive( D3DPT_TRIANGLELIST, 0, 0, 
                              g_dwNumDolphinVertices, 0, g_dwNumDolphinFaces );

            g_pEffect->EndPass();
        }
        g_pEffect->End(); 

         //渲染文本和控件
        DXUT_BeginPerfEvent( DXUT_PERFEVENTCOLOR, L"HUD / Stats" ); 
        RenderText();
        V( g_HUD.OnRender( fElapsedTime ) );
        V( g_SampleUI.OnRender( fElapsedTime ) );
        DXUT_EndPerfEvent();

        V( pd3dDevice->EndScene() );
    }
}


//-----------------------------------------------------------------------------
// Desc: 渲染文本
//-----------------------------------------------------------------------------
void  RenderText()
{
    CDXUTTextHelper txtHelper( g_pFont, g_pTextSprite, 15 );

     //显示当前Direct3D设备状态和渲染帧速率
    txtHelper.Begin();
    txtHelper.SetInsertionPos( 5, 5 );
    txtHelper.SetForegroundColor( D3DXCOLOR( 1.0f, 1.0f, 0.0f, 1.0f ) );
    txtHelper.DrawTextLine( DXUTGetFrameStats( true ) );
    txtHelper.DrawTextLine( DXUTGetDeviceStats() );

     //显示其他简要信息
    txtHelper.SetForegroundColor( D3DXCOLOR( 1.0f, 1.0f, 1.0f, 1.0f ) );
    txtHelper.DrawTextLine( L"通过HLSL编程实现渐变动画" );
    
     //显示简单帮助文本
     const  D3DSURFACE_DESC* pd3dsdBackBuffer = DXUTGetBackBufferSurfaceDesc();
     if ( g_bShowHelp )
    {
        txtHelper.SetInsertionPos( 10, pd3dsdBackBuffer->Height-15*6 );
        txtHelper.SetForegroundColor( D3DXCOLOR( 1.0f, 0.75f, 0.0f, 1.0f ) );
        txtHelper.DrawTextLine( L"Controls (F1 to hide):" );

        txtHelper.SetInsertionPos( 40, pd3dsdBackBuffer->Height-15*5 );
        txtHelper.DrawTextLine( L"Quit: ESC" );
    }
     else
    {
        txtHelper.SetInsertionPos( 10, pd3dsdBackBuffer->Height-15*2 );
        txtHelper.SetForegroundColor( D3DXCOLOR( 1.0f, 1.0f, 1.0f, 1.0f ) );
        txtHelper.DrawTextLine( L"Press F1 for help" );
    }
    txtHelper.End();
}


//-----------------------------------------------------------------------------
// Desc: 消息处理
//-----------------------------------------------------------------------------
LRESULT CALLBACK MsgProc( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam, 
                          bool * pbNoFurtherProcessing,  void * pUserContext )
{
    *pbNoFurtherProcessing = g_DialogResourceManager.MsgProc( hWnd, uMsg, wParam, lParam );
     if ( *pbNoFurtherProcessing )
         return  0;

     if ( g_SettingsDlg.IsActive() )
    {
        g_SettingsDlg.MsgProc( hWnd, uMsg, wParam, lParam );
         return  0;
    }

    *pbNoFurtherProcessing = g_HUD.MsgProc( hWnd, uMsg, wParam, lParam );
     if ( *pbNoFurtherProcessing )
         return  0;
   
    *pbNoFurtherProcessing = g_SampleUI.MsgProc( hWnd, uMsg, wParam, lParam );
     if ( *pbNoFurtherProcessing )
         return  0;

     return  0;
}


//-----------------------------------------------------------------------------
// Desc: 键盘消息处理
//-----------------------------------------------------------------------------
void  CALLBACK KeyboardProc( UINT nChar,  bool  bKeyDown,  bool  bAltDown,  void * pUserContext )
{
     if ( bKeyDown )
    {
         switch ( nChar )
        {
             case  VK_F1: g_bShowHelp = !g_bShowHelp;  break ;
        }
    }
}


//-----------------------------------------------------------------------------
// Desc: 处理各种控件消息
//-----------------------------------------------------------------------------
void  CALLBACK OnGUIEvent( UINT nEvent,  int  nControlID, CDXUTControl* pControl, 
                          void * pUserContext )
{
     switch ( nControlID )
    {
         case  IDC_TOGGLEFULLSCREEN:
            DXUTToggleFullScreen(); 
             break ;

         case  IDC_TOGGLEREF:
            DXUTToggleREF(); 
             break ;

         case  IDC_CHANGEDEVICE:
            g_SettingsDlg.SetActive( !g_SettingsDlg.IsActive() ); 
             break ;
    }
}


//-----------------------------------------------------------------------------
// Desc: 释放在OnResetDevice()中创建的资源
//-----------------------------------------------------------------------------
void  CALLBACK OnLostDevice(  void * pUserContext )
{
    g_DialogResourceManager.OnLostDevice();
    g_SettingsDlg.OnLostDevice();
     if ( g_pFont )
        g_pFont->OnLostDevice();
    SAFE_RELEASE( g_pTextSprite );

     if (g_pEffect)
        g_pEffect->OnLostDevice();
}


//------------------------------------------------------------------------------
// Desc: 释放在OnCreateDevice()中创建的资源
//------------------------------------------------------------------------------
void  CALLBACK OnDestroyDevice(  void *  pUserContext )
{
    g_DialogResourceManager.OnDestroyDevice();
    g_SettingsDlg.OnDestroyDevice();
    SAFE_RELEASE( g_pFont );

    SAFE_RELEASE(g_pEffect);
    SAFE_RELEASE(g_pDolphinVB1);
    SAFE_RELEASE(g_pDolphinVB2);
    SAFE_RELEASE(g_pDolphinIB);
    SAFE_RELEASE(g_pDolphinVertexDeclaration);
}