DX编程（2）-顶点渲染

#include <d3d9.h>#include <d3dx9effect.h>#pragma comment(lib,"d3d9.lib")#pragma warning(disable : 4996)#include <strsafe.h>#pragma warning(default : 4996)LPDIRECT3D9 g_pD3D = NULL;LPDIRECT3DDEVICE9 g_pd3dDevice = NULL;LPDIRECT3DVERTEXBUFFER9 g_pVB = NULL; //定义顶点缓冲区HRESULT InitD3D(HWND hWnd){if(NULL == (g_pD3D = Direct3DCreate9(D3D_SDK_VERSION)))return E_FAIL;D3DPRESENT_PARAMETERS d3dpp;ZeroMemory(&d3dpp,sizeof(d3dpp));d3dpp.Windowed = TRUE;d3dpp.SwapEffect = D3DSWAPEFFECT_DISCARD;d3dpp.BackBufferFormat = D3DFMT_UNKNOWN;if(FAILED(g_pD3D->CreateDevice(D3DADAPTER_DEFAULT,D3DDEVTYPE_HAL,hWnd,D3DCREATE_SOFTWARE_VERTEXPROCESSING,&d3dpp,&g_pd3dDevice)))return E_FAIL;return S_OK;}void Cleanup(){if(NULL != g_pVB)g_pVB->Release();if(NULL != g_pd3dDevice)g_pd3dDevice->Release();if(NULL != g_pD3D)g_pD3D->Release();}/*****************************************************************************///自定义顶点格式struct CUSTOMVERTEX{FLOAT x,y,z,rhw;DWORD color;};//定义FVF#define D3DFVF_CUSTOMVERTEX (D3DFVF_XYZRHW | D3DFVF_DIFFUSE)HRESULT InitVB(){//创建顶点缓冲区if(FAILED(g_pd3dDevice->CreateVertexBuffer(3*sizeof(CUSTOMVERTEX),0,D3DFVF_CUSTOMVERTEX,D3DPOOL_DEFAULT,&g_pVB,NULL)))return E_FAIL;//填充顶点缓冲区CUSTOMVERTEX Vertices[] ={{100.0f, 0.0f, 0.5f, 1.0f, 0xffff0000,},{500.0f, 0.0f, 0.5f, 1.0f, 0xff00ff00,},{300.0f, 300.0f, 0.5f, 1.0f, 0xff0000ff,},};void *pVertices;if(FAILED(g_pVB->Lock(0,sizeof(Vertices),&pVertices,0)))return E_FAIL;memcpy(pVertices,Vertices,sizeof(Vertices));g_pVB->Unlock();return S_OK;}void Render(){if(NULL == g_pd3dDevice)return;g_pd3dDevice->Clear(0,NULL,D3DCLEAR_TARGET,D3DCOLOR_XRGB(0,0,0),1.0,0);if(SUCCEEDED(g_pd3dDevice->BeginScene())){//指定渲染源g_pd3dDevice->SetStreamSource(0,g_pVB,0,sizeof(CUSTOMVERTEX));//指定自定义的FVFg_pd3dDevice->SetFVF(D3DFVF_CUSTOMVERTEX);//渲染g_pd3dDevice->DrawPrimitive(D3DPT_TRIANGLELIST,0,1);g_pd3dDevice->EndScene();}g_pd3dDevice->Present(NULL,NULL,NULL,NULL);}/*****************************************************************************/LRESULT CALLBACK WndProc(HWND hWnd,UINT uMsg,WPARAM wParam,LPARAM lParam){switch(uMsg){case WM_PAINT:Render();ValidateRect(hWnd,NULL);break;case WM_DESTROY:Cleanup();PostQuitMessage(0);break;default:break;}return DefWindowProc(hWnd,uMsg,wParam,lParam);}int WINAPI wWinMain( __in HINSTANCE hInstance, __in_opt HINSTANCE hPrevInstance, __in_opt LPWSTR lpCmdLine, __in int nShowCmd ){WNDCLASSEX wcex;wcex.cbSize = sizeof(WNDCLASSEX);wcex.cbClsExtra = 0;wcex.cbWndExtra = 0;wcex.hbrBackground = NULL;wcex.hCursor = NULL;wcex.hIcon = NULL;wcex.hIconSm = NULL;wcex.hInstance = GetModuleHandle(NULL);wcex.lpfnWndProc = WndProc;wcex.lpszClassName = L"First D3D Window";wcex.lpszMenuName = NULL;wcex.style = CS_CLASSDC;RegisterClassEx(&wcex);HWND hWnd = CreateWindow(L"First D3D Window",L"第一个D3D窗口",WS_OVERLAPPEDWINDOW,0,0,600,400,NULL,NULL,wcex.hInstance,NULL);if(SUCCEEDED(InitD3D(hWnd)) && SUCCEEDED(InitVB())){ShowWindow(hWnd,SW_SHOWNORMAL);UpdateWindow(hWnd);MSG msg;while (GetMessage(&msg,NULL,0,0)){TranslateMessage(&msg);DispatchMessage(&msg);}}UnregisterClass(L"First D3D Window",wcex.hInstance);return 0;}