DXUT是Direct3D的辅助工具，可以轻易实现3D应用程序框架，从而不必要自己管理窗口和Direct3DDevice之间的细节，下面的代码是使用DXUT的基本代码，其实现了如下功能：
窗口和全屏之间的切换HAL和REF之间的切换自定义Direct3DDevice设置#include <atlbase.h> #include <atlstr.h> #include <DXUT.h> #include <DXUTgui.h> #include <SDKmisc.h> #include <DXUTSettingsDlg.h> //-------------------------------------------------------------------------------------- // Global variables //-------------------------------------------------------------------------------------- CDXUTDialogResourceManager g_DialogResourceMgr; CD3DSettingsDlg g_SettingsDlg; CDXUTDialog g_HUD; CComPtr<ID3DXFont> g_Font9; CComPtr<ID3DXSprite> g_Sprite9; //-------------------------------------------------------------------------------------- // UI control IDs //-------------------------------------------------------------------------------------- #define IDC_TOGGLEFULLSCREEN 1 #define IDC_TOGGLEREF 2 #define IDC_CHANGEDEVICE 3 // ------------------------------------------------------------------------------------------ // IsD3D9DeviceAcceptable // ------------------------------------------------------------------------------------------ bool CALLBACK IsD3D9DeviceAcceptable(D3DCAPS9 * pCaps, D3DFORMAT AdapterFormat, D3DFORMAT BackBufferFormat, bool bWindowed, void * pUserContext) { // 跳过不支持alpha blending的后缓存 IDirect3D9 * pD3D = DXUTGetD3D9Object(); if(FAILED((pD3D->CheckDeviceFormat( pCaps->AdapterOrdinal, pCaps->DeviceType, AdapterFormat, D3DUSAGE_QUERY_POSTPIXELSHADER_BLENDING, D3DRTYPE_TEXTURE, BackBufferFormat)))) { return false; } 至少要支持ps2.0，这还是要看实际使用情况 //if(pCaps->PixelShaderVersion < D3DPS_VERSION(2, 0)) //{ // return false; //} return true; } // ------------------------------------------------------------------------------------------ // ModifyDeviceSettings // ------------------------------------------------------------------------------------------ bool CALLBACK ModifyDeviceSettings(DXUTDeviceSettings * pDeviceSettings, void * pUserContext) { // 如果创建一个ref设备（即软件模拟），则应该给出一个警告 if(DXUT_D3D9_DEVICE == pDeviceSettings->ver && D3DDEVTYPE_REF == pDeviceSettings->d3d9.DeviceType) { DXUTDisplaySwitchingToREFWarning(pDeviceSettings->ver); } return true; } // ------------------------------------------------------------------------------------------ // OnD3D9CreateDevice // ------------------------------------------------------------------------------------------ HRESULT CALLBACK OnD3D9CreateDevice(IDirect3DDevice9 * pd3dDevice, const D3DSURFACE_DESC * pBackBufferSurfaceDesc, void * pUserContext) { // 在这里创建d3d9资源，但这些资源应该不受device reset限制的 HRESULT hr; V_RETURN(g_DialogResourceMgr.OnD3D9CreateDevice(pd3dDevice)); V_RETURN(g_SettingsDlg.OnD3D9CreateDevice(pd3dDevice)); V_RETURN(D3DXCreateFont( pd3dDevice, 15, 0, FW_BOLD, 1, FALSE, DEFAULT_CHARSET, OUT_DEFAULT_PRECIS, DEFAULT_QUALITY, DEFAULT_PITCH | FF_DONTCARE, L"Arial", &g_Font9)); V_RETURN(D3DXCreateSprite(pd3dDevice, &g_Sprite9)); return S_OK; } // ------------------------------------------------------------------------------------------ // OnD3D9ResetDevice // ------------------------------------------------------------------------------------------ HRESULT CALLBACK OnD3D9ResetDevice(IDirect3DDevice9 * pd3dDevice, const D3DSURFACE_DESC * pBackBufferSurfaceDesc, void * pUserContext) { // 在这里创建d3d9资源，但这些资源将受到device reset限制 HRESULT hr; V_RETURN(g_DialogResourceMgr.OnD3D9ResetDevice()); V_RETURN(g_SettingsDlg.OnD3D9ResetDevice()); V_RETURN(g_Font9->OnResetDevice()); V_RETURN(g_Sprite9->OnResetDevice()); g_HUD.SetLocation(pBackBufferSurfaceDesc->Width - 170, 0); g_HUD.SetSize(170, 170); return S_OK; } // ------------------------------------------------------------------------------------------ // OnD3D9LostDevice // ------------------------------------------------------------------------------------------ void CALLBACK OnD3D9LostDevice(void * pUserContext) { // 在这里处理在reset中创建的资源 g_DialogResourceMgr.OnD3D9LostDevice(); g_SettingsDlg.OnD3D9LostDevice(); g_Font9->OnLostDevice(); g_Sprite9->OnLostDevice(); } // ------------------------------------------------------------------------------------------ // wWinMain // ------------------------------------------------------------------------------------------ void CALLBACK OnD3D9DestroyDevice(void * pUserContext) { // 在这里销毁在create中创建的资源 g_DialogResourceMgr.OnD3D9DestroyDevice(); g_SettingsDlg.OnD3D9DestroyDevice(); g_Font9.Release(); g_Sprite9.Release(); } // ------------------------------------------------------------------------------------------ // OnFrameMove // ------------------------------------------------------------------------------------------ void CALLBACK OnFrameMove(double fTime, float fElapsedTime, void * pUserContext) { // 在这里更新场景 } // ------------------------------------------------------------------------------------------ // OnD3D9FrameRender // ------------------------------------------------------------------------------------------ void CALLBACK OnD3D9FrameRender(IDirect3DDevice9 * pd3dDevice, double fTime, float fElapsedTime, void * pUserContext) { // 在这里渲染场景 HRESULT hr; V(pd3dDevice->Clear( 0, NULL, D3DCLEAR_TARGET | D3DCLEAR_ZBUFFER, D3DCOLOR_ARGB(0, 45, 50, 170), 1.0f, 0)); if(g_SettingsDlg.IsActive()) { g_SettingsDlg.OnRender(fElapsedTime); return; } if(SUCCEEDED(hr = pd3dDevice->BeginScene())) { CDXUTTextHelper txtHelper(g_Font9, g_Sprite9, 15); txtHelper.Begin(); txtHelper.SetInsertionPos(5, 5); txtHelper.SetForegroundColor(D3DXCOLOR(1.0f, 1.0f, 0.0f, 1.0f)); txtHelper.DrawTextLine(DXUTGetFrameStats(DXUTIsVsyncEnabled())); txtHelper.DrawTextLine(DXUTGetDeviceStats()); txtHelper.End(); V(g_HUD.OnRender(fElapsedTime)); V(pd3dDevice->EndScene()); } } // ------------------------------------------------------------------------------------------ // OnGUIEvent // ------------------------------------------------------------------------------------------ void CALLBACK OnGUIEvent(UINT nEvent, int nControlID, CDXUTControl * pControl, void * pUserContext) { // 在这里处理ui事件 switch(nControlID) { case IDC_TOGGLEFULLSCREEN: DXUTToggleFullScreen(); break; case IDC_TOGGLEREF: DXUTToggleREF(); break; case IDC_CHANGEDEVICE: g_SettingsDlg.SetActive(!g_SettingsDlg.IsActive()); break; } } // ------------------------------------------------------------------------------------------ // MsgProc // ------------------------------------------------------------------------------------------ LRESULT CALLBACK MsgProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam, bool * pbNoFurtherProcessing, void * pUserContext) { // 在这里进行消息处理 *pbNoFurtherProcessing = g_DialogResourceMgr.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; } return 0; } // ------------------------------------------------------------------------------------------ // OnKeyboard // ------------------------------------------------------------------------------------------ void CALLBACK OnKeyboard(UINT nChar, bool bKeyDown, bool bAltDown, void * pUserContext) { // 在这里进行键盘事件处理 // 更具DXUT的源代码可以看出，如果要阻止Escape推出窗口，应当 // 在MsgProc处理WM_KEYDOWN中的VK_ESCAPE，并给出bNoFurtherProcessing结果即可 } // ------------------------------------------------------------------------------------------ // wWinMain // ------------------------------------------------------------------------------------------ int WINAPI wWinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPWSTR lpCmdLine, int nCmdShow) { #if defined(DEBUG) | defined(_DEBUG) _CrtSetDbgFlag(_CRTDBG_ALLOC_MEM_DF | _CRTDBG_LEAK_CHECK_DF); #endif // 设置DXUT资源管理的回调函数 DXUTSetCallbackD3D9DeviceAcceptable(IsD3D9DeviceAcceptable); DXUTSetCallbackDeviceChanging(ModifyDeviceSettings); DXUTSetCallbackD3D9DeviceCreated(OnD3D9CreateDevice); DXUTSetCallbackD3D9DeviceReset(OnD3D9ResetDevice); DXUTSetCallbackD3D9DeviceLost(OnD3D9LostDevice); DXUTSetCallbackD3D9DeviceDestroyed(OnD3D9DestroyDevice); // 设置渲染的回调函数 DXUTSetCallbackFrameMove(OnFrameMove); DXUTSetCallbackD3D9FrameRender(OnD3D9FrameRender); // 设置消息回调函数 DXUTSetCallbackMsgProc(MsgProc); DXUTSetCallbackKeyboard(OnKeyboard); // 全局初始化工作 g_SettingsDlg.Init(&g_DialogResourceMgr); g_HUD.Init(&g_DialogResourceMgr); g_HUD.SetCallback(OnGUIEvent); int nY = 10; g_HUD.AddButton(IDC_TOGGLEFULLSCREEN, L"Toggle full screen", 35, nY, 125, 22); g_HUD.AddButton(IDC_TOGGLEREF, L"Toggle REF (F3)", 35, nY += 24, 125, 22, VK_F3); g_HUD.AddButton(IDC_CHANGEDEVICE, L"Change device (F2)", 35, nY += 24, 125, 22, VK_F2); // 启动DXUT DXUTInit(true, true, NULL); DXUTSetCursorSettings(true, true); DXUTCreateWindow(L"demo2_2"); DXUTCreateDevice(true, 800, 600); DXUTMainLoop(); return DXUTGetExitCode(); }
程序运行之后如图：
