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📄 appframe.cpp

📁 DX例子中等难度的。全是新例子。VC2003
💻 CPP
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//=============================================================================
// Desc: Direct3D应用程序框架
//=============================================================================
#include "dxstdafx.h"
#include "resource.h"


//-----------------------------------------------------------------------------
// 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


//-----------------------------------------------------------------------------
// 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"AppFrame" );
	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 );

	//为g_SampleUI对话框设置消息处理函数,添加控件
	/*
    g_SampleUI.SetCallback( OnGUIEvent ); iY = 10;
	g_SampleUI.AddComboBox( 19, 35, iY += 24, 125, 22 );
    g_SampleUI.GetComboBox( 19 )->AddItem( L"Text1", NULL );
    g_SampleUI.GetComboBox( 19 )->AddItem( L"Text2", NULL );
    g_SampleUI.GetComboBox( 19 )->AddItem( L"Text3", NULL );
    g_SampleUI.GetComboBox( 19 )->AddItem( L"Text4", NULL );
    g_SampleUI.AddCheckBox( 21, L"Checkbox1", 35, iY += 24, 125, 22 );
    g_SampleUI.AddCheckBox( 11, L"Checkbox2", 35, iY += 24, 125, 22 );
    g_SampleUI.AddRadioButton( 12, 1, L"Radio1G1", 35, iY += 24, 125, 22 );
    g_SampleUI.AddRadioButton( 13, 1, L"Radio2G1", 35, iY += 24, 125, 22 );
    g_SampleUI.AddRadioButton( 14, 1, L"Radio3G1", 35, iY += 24, 125, 22 );
    g_SampleUI.GetRadioButton( 14 )->SetChecked( true ); 
    g_SampleUI.AddButton( 17, L"Button1", 35, iY += 24, 125, 22 );
    g_SampleUI.AddButton( 18, L"Button2", 35, iY += 24, 125, 22 );
    g_SampleUI.AddRadioButton( 15, 2, L"Radio1G2", 35, iY += 24, 125, 22 );
    g_SampleUI.AddRadioButton( 16, 2, L"Radio2G3", 35, iY += 24, 125, 22 );
    g_SampleUI.GetRadioButton( 16 )->SetChecked( true );
    g_SampleUI.AddSlider( 20, 50, iY += 24, 100, 22 );
    g_SampleUI.GetSlider( 20 )->SetRange( 0, 100 );
    g_SampleUI.GetSlider( 20 )->SetValue( 50 );
    g_SampleUI.AddEditBox( 20, L"Test", 35, iY += 24, 125, 32 );
	*/
}


//-----------------------------------------------------------------------------
// 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;

    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;
    }

	//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 ) );

    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() );

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