Direct3D初始化

  1 /*
  2 2015.4
  3 Direct3D初始化
  4 */
  5 
  6 #include <d3d9.h>
  7 
  8 #pragma comment(lib,"d3d9.lib")
  9 #pragma comment(lib,"d3dx9.lib")
 10 
 11 #define WINDOW_WIDTH    800                            
 12 #define WINDOW_HEIGHT    600                            
 13 #define WINDOW_TITLE    L"Direct3D初始化"    
 14 #define SAFE_RELEASE(p) { if(p) { (p)->Release(); (p)=NULL; } }   //安全释放宏，便于后面COM接口指针的释放
 15 
 16 LPDIRECT3DDEVICE9       g_pd3dDevice = NULL; //Direct3D设备对象
 17 
 18 LRESULT CALLBACK WndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam);
 19 
 20 //Direct3D的初始化
 21 HRESULT    Direct3D_Init(HWND hwnd);
 22 
 23 //要绘制的物体的资源初始化
 24 HRESULT    Objects_Init(HWND hwnd); 
 25 
 26 //Direct3D渲染
 27 VOID Direct3D_Render(HWND hwnd); 
 28 
 29 VOID Direct3D_CleanUp();                
 30 
 31 int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nShowCmd)
 32 {
 33     WNDCLASSEX wndClass = { 0 };                            
 34     wndClass.cbSize = sizeof(WNDCLASSEX);            
 35     wndClass.style = CS_HREDRAW | CS_VREDRAW;    
 36     wndClass.lpfnWndProc = WndProc;                    
 37     wndClass.cbClsExtra = 0;                                
 38     wndClass.cbWndExtra = 0;                            
 39     wndClass.hInstance = hInstance;                        
 40     wndClass.hIcon = 0;
 41     wndClass.hCursor = LoadCursor(NULL, IDC_ARROW);   
 42     wndClass.hbrBackground = (HBRUSH)GetStockObject(GRAY_BRUSH);  
 43     wndClass.lpszMenuName = NULL;                        
 44     wndClass.lpszClassName = L"Game Develop";        
 45 
 46     if (!RegisterClassEx(&wndClass))            
 47         return -1;
 48 
 49     HWND hwnd = CreateWindow(L"Game Develop", WINDOW_TITLE,                
 50         WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, CW_USEDEFAULT, WINDOW_WIDTH,
 51         WINDOW_HEIGHT, NULL, NULL, hInstance, NULL);
 52 
 53     //Direct3D资源的初始化，成功或者失败都用messagebox予以显示
 54     if (S_OK == Direct3D_Init(hwnd))
 55     {
 56         MessageBox(hwnd, L"Direct3D初始化完成~！", L"消息窗口", 0); 
 57     }
 58     else
 59     {
 60         MessageBox(hwnd, L"Direct3D初始化失败~！", L"消息窗口", 0); 
 61     }
 62 
 63     MoveWindow(hwnd, 250, 80, WINDOW_WIDTH, WINDOW_HEIGHT, true);        
 64     ShowWindow(hwnd, nShowCmd);  
 65     UpdateWindow(hwnd);                        
 66 
 67     MSG msg = { 0 };  
 68     while (msg.message != WM_QUIT)            
 69     {
 70         if (PeekMessage(&msg, 0, 0, 0, PM_REMOVE))   
 71         {
 72             TranslateMessage(&msg);        //将虚拟键消息转换为字符消息
 73             DispatchMessage(&msg);        //该函数分发一个消息给窗口程序
 74         }
 75         else
 76         {
 77             //进行渲染
 78             Direct3D_Render(hwnd);   
 79         }
 80     }
 81     //注销窗口类
 82     UnregisterClass(L"Game Develop", wndClass.hInstance);  
 83     return 0;
 84 }
 85 
 86 LRESULT CALLBACK WndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
 87 {
 88     switch (message)                    
 89     {
 90     case WM_PAINT:    
 91         //调用Direct3D渲染函数
 92         Direct3D_Render(hwnd); 
 93         // 更新客户区的显示
 94         ValidateRect(hwnd, NULL);        
 95         break;                                    
 96 
 97     case WM_KEYDOWN:                    
 98         if (wParam == VK_ESCAPE)   
 99             DestroyWindow(hwnd);        
100         break;                                    
101 
102     case WM_DESTROY:                
103         Direct3D_CleanUp();            
104         PostQuitMessage(0);            
105         break;                                    
106 
107     default:                                        
108         return DefWindowProc(hwnd, message, wParam, lParam);        
109     }
110 
111     return 0;                                
112 }
113 
114 HRESULT Direct3D_Init(HWND hwnd)
115 {
116     //Direct3D接口对象的创建
117     LPDIRECT3D9  pD3D = NULL; 
118     //初始化Direct3D接口对象，并进行DirectX版本协商
119     if (NULL == (pD3D = Direct3DCreate9(D3D_SDK_VERSION))) 
120         return E_FAIL;
121 
122     //获取硬件设备信息
123     D3DCAPS9 caps;
124     int vp = 0;
125     if (FAILED(pD3D->GetDeviceCaps(D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL, &caps)))
126     {
127         return E_FAIL;
128     }
129     //支持硬件顶点运算，采用硬件顶点运算
130     if (caps.DevCaps & D3DDEVCAPS_HWTRANSFORMANDLIGHT)
131         vp = D3DCREATE_HARDWARE_VERTEXPROCESSING; 
132 
133     //不支持硬件顶点运算，采用软件顶点运算
134     else
135         vp = D3DCREATE_SOFTWARE_VERTEXPROCESSING; 
136 
137     //填充D3DPRESENT_PARAMETERS结构体
138     D3DPRESENT_PARAMETERS d3dpp;
139     ZeroMemory(&d3dpp, sizeof(d3dpp));
140     d3dpp.BackBufferWidth = WINDOW_WIDTH;
141     d3dpp.BackBufferHeight = WINDOW_HEIGHT;
142     d3dpp.BackBufferFormat = D3DFMT_A8R8G8B8;
143     d3dpp.BackBufferCount = 1;
144     d3dpp.MultiSampleType = D3DMULTISAMPLE_NONE;
145     d3dpp.MultiSampleQuality = 0;
146     d3dpp.SwapEffect = D3DSWAPEFFECT_DISCARD;
147     d3dpp.hDeviceWindow = hwnd;
148     d3dpp.Windowed = true;
149     d3dpp.EnableAutoDepthStencil = true;
150     d3dpp.AutoDepthStencilFormat = D3DFMT_D24S8;
151     d3dpp.Flags = 0;
152     d3dpp.FullScreen_RefreshRateInHz = 0;
153     d3dpp.PresentationInterval = D3DPRESENT_INTERVAL_IMMEDIATE;
154 
155     //创建Direct3D设备接口
156     /*
157     HRESULT CreateDevice(
158                 UINT Adapter,
159                 D3DDEVTYPE DeviceType,
160                 HWND hFocusWindow,
161                 DWORD BehaviorFlags,
162                 D3DPRESENT_PARAMETERS *pPresentationParameters,
163                 IDirect3DDevice9** ppReturnedDeviceInterface);
164     */
165     if (FAILED(pD3D->CreateDevice(D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL,
166         hwnd, vp, &d3dpp, &g_pd3dDevice)))
167         return E_FAIL;
168 
169     //释放LPDIRECT3D9接口
170     SAFE_RELEASE(pD3D);
171 
172     //渲染资源的初始化
173     if (!(S_OK == Objects_Init(hwnd))) 
174         return E_FAIL;   
175 
176     return S_OK;
177 }
178 
179 HRESULT Objects_Init(HWND hwnd)
180 {
181     return S_OK;
182 }
183 
184 void Direct3D_Render(HWND hwnd)
185 {
186 
187 }
188 
189 void Direct3D_CleanUp()
190 {
191 
192 }