DX初学咋练----配置环境及初次运行（vs2010/dx9.0）

  1 #include <Windows.h>
  2 #include <d3dx9.h>
  3 #include <MMSystem.h>
  4 LPDIRECT3D9 g_pD3D;
  5 LPDIRECT3DDEVICE9 g_pd3dDevice;
  6 LPDIRECT3DVERTEXBUFFER9 g_pVB;
  7 struct CUSTOMVERTEX{    
  8     FLOAT x, y, z;    
  9     DWORD color;
 10 };
 11 #define D3DFVF_CUSTOMVERTEX (D3DFVF_XYZ|D3DFVF_DIFFUSE)
 12 HRESULT InitObject()
 13 {    
 14     CUSTOMVERTEX triangle[] =     
 15     {        
 16         { -1.0f,-1.0f, 0.0f, 0xffff0000, },        
 17         {  1.0f,-1.0f, 0.0f, 0xff0000ff, },        
 18         {  0.0f, 1.0f, 0.0f, 0xffffffff, }  
 19     };    
 20     if (FAILED(g_pd3dDevice->CreateVertexBuffer(3*sizeof(CUSTOMVERTEX),0, D3DFVF_CUSTOMVERTEX, D3DPOOL_DEFAULT, &g_pVB, NULL)))        
 21         return E_FAIL;    
 22     VOID* pVertices;    
 23     if (FAILED(g_pVB->Lock(0,sizeof(triangle), &pVertices, 0)))        
 24         return E_FAIL;    
 25     memcpy(pVertices, triangle, sizeof(triangle));    
 26     g_pVB->Unlock();    
 27     return S_OK;
 28 }
 29 HRESULT InitD3D(HWND hWnd)
 30 {    
 31     g_pD3D = Direct3DCreate9(D3D_SDK_VERSION);    
 32     if (NULL == g_pD3D)        
 33         return E_FAIL;    
 34     D3DPRESENT_PARAMETERS d3dpp;    
 35     ZeroMemory(&d3dpp, sizeof(d3dpp));    
 36     d3dpp.Windowed = TRUE;    
 37     d3dpp.SwapEffect = D3DSWAPEFFECT_DISCARD;    
 38     d3dpp.BackBufferFormat = D3DFMT_UNKNOWN;    
 39     if(FAILED( g_pD3D->CreateDevice(D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL,                                         
 40         hWnd, D3DCREATE_SOFTWARE_VERTEXPROCESSING,                                        
 41         &d3dpp, &g_pd3dDevice)))    
 42     {        
 43         return E_FAIL;    
 44     }    
 45     g_pd3dDevice->SetRenderState(D3DRS_CULLMODE, D3DCULL_NONE);    
 46     // Turn off D3D lighting, since we are providing our own vertex colors    
 47     g_pd3dDevice->SetRenderState( D3DRS_LIGHTING, FALSE );    
 48     if (FAILED(InitObject()))        
 49         return E_FAIL;    
 50     return S_OK;
 51 }
 52 void SetupMatrices()
 53 {    
 54     D3DXMATRIX matWorld;    
 55     UINT iTime = timeGetTime() % 1000;    
 56     FLOAT fAngle = iTime * ( 2.0f * D3DX_PI ) / 1000.0f;    
 57     D3DXMatrixRotationY(&matWorld, fAngle);    
 58     g_pd3dDevice->SetTransform(D3DTS_WORLD, &matWorld);    
 59     D3DXVECTOR3 vEyePt(0.0f, 3.0f, -5.0f);    
 60     D3DXVECTOR3 vLookAtPt(0.0f, 0.0f, 0.0f);    
 61     D3DXVECTOR3 vUp(0.0f, 1.0f, 0.0f);    
 62     D3DXMATRIXA16 matView;    
 63     D3DXMatrixLookAtLH(&matView, &vEyePt, &vLookAtPt, &vUp);    
 64     g_pd3dDevice->SetTransform(D3DTS_VIEW, &matView);    
 65     D3DXMATRIX matPoj;    
 66     D3DXMatrixPerspectiveFovLH(&matPoj, D3DX_PI/4, 1.0f, 1.0f, 100.0f);    
 67     g_pd3dDevice->SetTransform(D3DTS_PROJECTION, &matPoj);
 68 }
 69 void Render()
 70 {    
 71     g_pd3dDevice->Clear(0,NULL,  D3DCLEAR_TARGET, D3DCOLOR_XRGB(0, 0, 255), 1.0f, 0);    
 72     g_pd3dDevice->BeginScene();    
 73     SetupMatrices();    
 74     g_pd3dDevice->SetStreamSource(0, g_pVB, 0, sizeof(CUSTOMVERTEX));    
 75     g_pd3dDevice->SetFVF(D3DFVF_CUSTOMVERTEX);    
 76     g_pd3dDevice->DrawPrimitive(D3DPT_TRIANGLELIST, 0, 1);    
 77     g_pd3dDevice->EndScene();    
 78     g_pd3dDevice->Present(NULL, NULL, NULL, NULL);
 79 }
 80 void Cleanup()
 81 {    
 82     if (g_pd3dDevice)        
 83         g_pd3dDevice->Release();    
 84     if (g_pD3D)        
 85         g_pD3D->Release();    
 86     if (g_pVB)        
 87         g_pVB->Release();
 88 }
 89 LRESULT WINAPI MsgProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
 90 {    
 91     switch (msg)    
 92     {    
 93     case WM_DESTROY:       
 94         PostQuitMessage(0);        
 95         return 0;    
 96     case WM_PAINT:        
 97         ValidateRect(hWnd, NULL);        
 98         return 0;   
 99     }    
100     return DefWindowProc(hWnd, msg, wParam, lParam);
101 }
102 INT WINAPI WinMain(__in HINSTANCE hInstance, __in_opt HINSTANCE hPrevInstance, __in_opt LPSTR lpCmdLine, __in int nShowCmd )
103 {    
104     WNDCLASSEX wc = {sizeof(WNDCLASSEX), CS_CLASSDC, MsgProc, 0, 0,    GetModuleHandle(NULL), NULL, NULL, NULL, NULL,     L"Direct3D", NULL};    
105     RegisterClassEx(&wc);    
106     // Create the application window    
107     HWND hWnd = CreateWindow(L"Direct3D", 
108         L"Learn", WS_OVERLAPPEDWINDOW,        
109         100, 100, 300, 300,         
110         GetDesktopWindow(), 
111         NULL, wc.hInstance, NULL);    
112     //
113     ShowWindow(hWnd, SW_SHOW);    
114     if (SUCCEEDED(InitD3D(hWnd)))    
115     {
116         ShowWindow(hWnd, SW_SHOWDEFAULT);        
117         UpdateWindow(hWnd);       
118         MSG msg;        
119         ZeroMemory(&msg, sizeof(msg));    
120         while (msg.message != WM_QUIT)   
121         {         
122             if(PeekMessage(&msg, NULL, 0, 0, PM_REMOVE))     
123             {           
124                 TranslateMessage(&msg);     
125                 DispatchMessage(&msg);      
126             }          
127             else           
128                 Render();       
129         }           
130     }       
131     UnregisterClass( L"Direct3D", wc.hInstance );    
132     Cleanup();
133     return nShowCmd;
134 }