学步园

#include <d3d9.h><br /> #include <d3dx9effect.h><br /> #include <math.h></p> <p>#pragma comment(lib,"d3d9.lib")</p> <p>#pragma warning(disable : 4996)<br /> #include <strsafe.h><br /> #pragma warning(default : 4996)</p> <p>LPDIRECT3D9 g_pD3D = NULL;<br /> LPDIRECT3DDEVICE9 g_pd3dDevice = NULL;<br /> LPDIRECT3DVERTEXBUFFER9 g_pVB = NULL;<br /> LPDIRECT3DINDEXBUFFER9 g_pIB = NULL; //索引缓冲区</p> <p>HRESULT InitD3D(HWND hWnd)<br /> {<br /> if(NULL == (g_pD3D = Direct3DCreate9(D3D_SDK_VERSION)))<br /> return E_FAIL;</p> <p> D3DPRESENT_PARAMETERS d3dpp;<br /> ZeroMemory(&d3dpp,sizeof(d3dpp));<br /> d3dpp.Windowed = TRUE;<br /> d3dpp.SwapEffect = D3DSWAPEFFECT_DISCARD;<br /> d3dpp.BackBufferFormat = D3DFMT_UNKNOWN;<br /> if(FAILED(g_pD3D->CreateDevice(D3DADAPTER_DEFAULT,D3DDEVTYPE_HAL,hWnd,D3DCREATE_SOFTWARE_VERTEXPROCESSING,&d3dpp,&g_pd3dDevice)))<br /> return E_FAIL;</p> <p> return S_OK;<br /> }</p> <p>void Cleanup()<br /> {<br /> if(NULL != g_pVB)<br /> g_pVB->Release();</p> <p> if(NULL != g_pIB)<br /> g_pIB->Release();</p> <p> if(NULL != g_pd3dDevice)<br /> g_pd3dDevice->Release();</p> <p> if(NULL != g_pD3D)<br /> g_pD3D->Release();<br /> }</p> <p>/*****************************************************************************/</p> <p>struct CUSTOMVERTEX<br /> {<br /> FLOAT x,y,z,rhw;<br /> DWORD color;<br /> };</p> <p>#define D3DFVF_CUSTOMVERTEX (D3DFVF_XYZRHW | D3DFVF_DIFFUSE)</p> <p>HRESULT InitVB()<br /> {<br /> CUSTOMVERTEX Vertices[] =<br /> {<br /> {200.0f, 150.0f, 0.5f, 1.0f, 0xffff0000,},<br /> {400.0f, 0.0f, 0.5f, 1.0f, 0xff00ff00,},<br /> {400.0f, 100.0f, 0.5f, 1.0f, 0xff0000ff,},<br /> {400.0f, 200.0f, 0.5f, 1.0f, 0xffff0000,},<br /> {400.0f, 300.0f, 0.5f, 1.0f, 0xff00ff00,},<br /> }; </p> <p> if(FAILED(g_pd3dDevice->CreateVertexBuffer(5*sizeof(CUSTOMVERTEX),0,D3DFVF_CUSTOMVERTEX,D3DPOOL_DEFAULT,&g_pVB,NULL)))<br /> return E_FAIL;</p> <p> void *pVertices;<br /> if(FAILED(g_pVB->Lock(0,sizeof(Vertices),&pVertices,0)))<br /> return E_FAIL;<br /> memcpy(pVertices,Vertices,sizeof(Vertices));<br /> g_pVB->Unlock();</p> <p> //创建索引缓冲区<br /> WORD Indices[] = {0,1,2, 0,3,4};<br /> if(FAILED(g_pd3dDevice->CreateIndexBuffer(sizeof(Indices),0,D3DFMT_INDEX16,D3DPOOL_DEFAULT,&g_pIB,NULL)))<br /> return E_FAIL;</p> <p> //填充索引缓冲<br /> void* pi;<br /> if(FAILED(g_pIB->Lock(0,sizeof(Indices),&pi,0)))<br /> return E_FAIL;<br /> memcpy(pi,Indices,sizeof(Indices));<br /> g_pIB->Unlock();</p> <p> return S_OK;<br /> }</p> <p>void Render()<br /> {<br /> if(NULL == g_pd3dDevice)<br /> return;</p> <p> g_pd3dDevice->Clear(0,NULL,D3DCLEAR_TARGET,D3DCOLOR_XRGB(0,0,0),1.0,0);</p> <p> if(SUCCEEDED(g_pd3dDevice->BeginScene()))<br /> {</p> <p> g_pd3dDevice->SetStreamSource(0,g_pVB,0,sizeof(CUSTOMVERTEX));<br /> g_pd3dDevice->SetFVF(D3DFVF_CUSTOMVERTEX);<br /> //指定索引缓冲区<br /> g_pd3dDevice->SetIndices(g_pIB);<br /> //渲染 与上次不同<br /> g_pd3dDevice->DrawIndexedPrimitive(D3DPT_TRIANGLELIST,0,0,5,0,2);</p> <p> g_pd3dDevice->EndScene();<br /> }</p> <p> g_pd3dDevice->Present(NULL,NULL,NULL,NULL);<br /> }</p> <p>/*****************************************************************************/</p> <p>LRESULT CALLBACK WndProc(HWND hWnd,UINT uMsg,WPARAM wParam,LPARAM lParam)<br /> {<br /> switch(uMsg)<br /> {<br /> case WM_PAINT:<br /> Render();<br /> ValidateRect(hWnd,NULL);<br /> break;<br /> case WM_DESTROY:<br /> Cleanup();<br /> PostQuitMessage(0);<br /> break;<br /> default:<br /> break;<br /> }</p> <p> return DefWindowProc(hWnd,uMsg,wParam,lParam);<br /> }</p> <p>int WINAPI wWinMain( __in HINSTANCE hInstance, __in_opt HINSTANCE hPrevInstance, __in_opt LPWSTR lpCmdLine, __in int nShowCmd )<br /> {<br /> WNDCLASSEX wcex;<br /> wcex.cbSize = sizeof(WNDCLASSEX);<br /> wcex.cbClsExtra = 0;<br /> wcex.cbWndExtra = 0;<br /> wcex.hbrBackground = NULL;<br /> wcex.hCursor = NULL;<br /> wcex.hIcon = NULL;<br /> wcex.hIconSm = NULL;<br /> wcex.hInstance = GetModuleHandle(NULL);<br /> wcex.lpfnWndProc = WndProc;<br /> wcex.lpszClassName = L"First D3D Window";<br /> wcex.lpszMenuName = NULL;<br /> wcex.style = CS_CLASSDC | CS_HREDRAW | CS_VREDRAW;</p> <p> RegisterClassEx(&wcex);</p> <p> HWND hWnd = CreateWindow(L"First D3D Window",L"第一个D3D窗口",WS_OVERLAPPEDWINDOW,0,0,600,400,GetDesktopWindow(),NULL,<br /> wcex.hInstance,NULL);</p> <p> if(SUCCEEDED(InitD3D(hWnd)) && SUCCEEDED(InitVB()))<br /> {<br /> ShowWindow(hWnd,SW_SHOWDEFAULT);<br /> UpdateWindow(hWnd);</p> <p> MSG msg;<br /> while (GetMessage(&msg,NULL,0,0))<br /> {<br /> TranslateMessage(&msg);<br /> DispatchMessage(&msg);<br /> }</p> <p> }</p> <p> UnregisterClass(L"First D3D Window",wcex.hInstance);</p> <p> return 0;<br /> }