求助!基于MFC的DX8程序用精灵贴图,显示出来的图片大小和原始的不相同.
程序是用LPDIRECT3DTEXTURE8画图片的.
但是,实际显示的大小比原始的大.特求助于大家
不多说,上代码.(为便于大家比较我直接把cpp的代码全部复制出来了.)
// D3DTestDlg.cpp : implementation file//#include "stdafx.h"#include "D3DTest.h"#include "D3DTestDlg.h"#include "d3d8.h"#include "d3dx8math.h"#ifdef _DEBUG#define new DEBUG_NEW#undef THIS_FILEstatic char THIS_FILE[] = __FILE__;#endif/////////////////////////////////////////////////////////////////////////////// CAboutDlg dialog used for App AboutLPDIRECT3D8 g_pD3D = NULL;LPDIRECT3DDEVICE8 g_pDevice = NULL;LPD3DXSPRITE g_pSprite = NULL;D3DPRESENT_PARAMETERS g_Present;LPDIRECT3DTEXTURE8 g_pTexture = NULL;class CAboutDlg : public CDialog{public: CAboutDlg();// Dialog Data //{{AFX_DATA(CAboutDlg) enum { IDD = IDD_ABOUTBOX }; //}}AFX_DATA // ClassWizard generated virtual function overrides //{{AFX_VIRTUAL(CAboutDlg) protected: virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support //}}AFX_VIRTUAL// Implementationprotected: //{{AFX_MSG(CAboutDlg) //}}AFX_MSG DECLARE_MESSAGE_MAP()};CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD){ //{{AFX_DATA_INIT(CAboutDlg) //}}AFX_DATA_INIT}void CAboutDlg::DoDataExchange(CDataExchange* pDX){ CDialog::DoDataExchange(pDX); //{{AFX_DATA_MAP(CAboutDlg) //}}AFX_DATA_MAP}BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) //{{AFX_MSG_MAP(CAboutDlg) // No message handlers //}}AFX_MSG_MAPEND_MESSAGE_MAP()/////////////////////////////////////////////////////////////////////////////// CD3DTestDlg dialogCD3DTestDlg::CD3DTestDlg(CWnd* pParent /*=NULL*/) : CDialog(CD3DTestDlg::IDD, pParent){ //{{AFX_DATA_INIT(CD3DTestDlg) // NOTE: the ClassWizard will add member initialization here //}}AFX_DATA_INIT // Note that LoadIcon does not require a subsequent DestroyIcon in Win32 m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);}void CD3DTestDlg::DoDataExchange(CDataExchange* pDX){ CDialog::DoDataExchange(pDX); //{{AFX_DATA_MAP(CD3DTestDlg) DDX_Control(pDX, IDC_STA_SHOW, m_staShow); //}}AFX_DATA_MAP}BEGIN_MESSAGE_MAP(CD3DTestDlg, CDialog) //{{AFX_MSG_MAP(CD3DTestDlg) ON_WM_SYSCOMMAND() ON_WM_PAINT() ON_WM_QUERYDRAGICON() ON_WM_TIMER() //}}AFX_MSG_MAPEND_MESSAGE_MAP()/////////////////////////////////////////////////////////////////////////////// CD3DTestDlg message handlersBOOL CD3DTestDlg::OnInitDialog(){ CDialog::OnInitDialog(); // Add "About..." menu item to system menu. // IDM_ABOUTBOX must be in the system command range. ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX); ASSERT(IDM_ABOUTBOX < 0xF000); CMenu* pSysMenu = GetSystemMenu(FALSE); if (pSysMenu != NULL) { CString strAboutMenu; strAboutMenu.LoadString(IDS_ABOUTBOX); if (!strAboutMenu.IsEmpty()) { pSysMenu->AppendMenu(MF_SEPARATOR); pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu); } } // Set the icon for this dialog. The framework does this automatically // when the application's main window is not a dialog SetIcon(m_hIcon, TRUE); // Set big icon SetIcon(m_hIcon, FALSE); // Set small icon // TODO: Add extra initialization here this->InitD3D(m_staShow.GetSafeHwnd()); if (FAILED(::D3DXCreateTextureFromFile(g_pDevice, "Test.bmp", &g_pTexture))) { int a = 0; ++a; } this->SetTimer(1001, 8, NULL); return TRUE; // return TRUE unless you set the focus to a control}void CD3DTestDlg::OnSysCommand(UINT nID, LPARAM lParam){ if ((nID & 0xFFF0) == IDM_ABOUTBOX) { CAboutDlg dlgAbout; dlgAbout.DoModal(); } else { CDialog::OnSysCommand(nID, lParam); }}// If you add a minimize button to your dialog, you will need the code below// to draw the icon. For MFC applications using the document/view model,// this is automatically done for you by the framework.void CD3DTestDlg::OnPaint() { if (IsIconic()) { CPaintDC dc(this); // device context for painting SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); // Center icon in client rectangle int cxIcon = GetSystemMetrics(SM_CXICON); int cyIcon = GetSystemMetrics(SM_CYICON); CRect rect; GetClientRect(&rect); int x = (rect.Width() - cxIcon + 1) / 2; int y = (rect.Height() - cyIcon + 1) / 2; // Draw the icon dc.DrawIcon(x, y, m_hIcon); } else { CDialog::OnPaint(); }}// The system calls this to obtain the cursor to display while the user drags// the minimized window.HCURSOR CD3DTestDlg::OnQueryDragIcon(){ return (HCURSOR) m_hIcon;}bool CD3DTestDlg::InitD3D(HWND hWnd){ g_pD3D = Direct3DCreate8(D3D_SDK_VERSION); HRESULT hr; D3DDISPLAYMODE d3ddm; hr = g_pD3D->GetAdapterDisplayMode(D3DADAPTER_DEFAULT, &d3ddm); if(FAILED(hr)) return false; //D3DPRESENT_PARAMETERS d3dpp; ZeroMemory(&g_Present, sizeof(g_Present)); g_Present.BackBufferFormat = d3ddm.Format; g_Present.BackBufferCount = 1; g_Present.MultiSampleType = D3DMULTISAMPLE_NONE; g_Present.SwapEffect = D3DSWAPEFFECT_DISCARD; g_Present.hDeviceWindow = hWnd; g_Present.Windowed = TRUE; g_Present.EnableAutoDepthStencil = TRUE; g_Present.AutoDepthStencilFormat = D3DFMT_D24S8; g_Present.Flags = 0; g_Present.FullScreen_RefreshRateInHz = D3DPRESENT_RATE_DEFAULT; //d3dpp.FullScreen_PresentationInterval = D3DPRESENT_INTERVAL_IMMEDIATE; hr = g_pD3D->CreateDevice(D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL, hWnd, D3DCREATE_SOFTWARE_VERTEXPROCESSING, &g_Present, &g_pDevice); if(FAILED(hr)) return false; if (FAILED(D3DXCreateSprite(g_pDevice, &g_pSprite))) return false; if (FAILED(D3DXCreateSprite(g_pDevice, &g_pSprite))) return false; return true;}void CD3DTestDlg::OnTimer(UINT nIDEvent) { // TODO: Add your message handler code here and/or call default if (1001 == nIDEvent) { this->OnRender(); } CDialog::OnTimer(nIDEvent);}int CD3DTestDlg::IfDeviceLost(){ HRESULT hr; if (FAILED(hr = g_pDevice->TestCooperativeLevel())) { if (D3DERR_DEVICELOST == hr) return 1; if (D3DERR_DEVICENOTRESET) return 2; } return 0;}bool CD3DTestDlg::ResetDevice(){ if (FAILED(g_pDevice->Reset(&g_Present))) { return false; } DWORD current; g_pDevice->GetRenderState(D3DRS_AMBIENT, ¤t); if (current != D3DCOLOR_ARGB(255, 255, 255, 255)) g_pDevice->SetRenderState(D3DRS_AMBIENT, D3DCOLOR_ARGB(255, 255, 255, 255)); return true;}void CD3DTestDlg::OnRender(){ if (NULL == g_pDevice) { return; } int nRet = this->IfDeviceLost(); if (nRet == 1) { return; } else if (nRet == 2) { return; } g_pDevice->BeginScene(); g_pDevice->Clear(0, NULL, D3DCLEAR_TARGET | D3DCLEAR_ZBUFFER, D3DCOLOR_ARGB(255, 255, 255, 255), 1.0f, 0); if (g_pSprite && g_pTexture) { D3DXVECTOR2 dvTran(0.0f, 0.0f); g_pSprite->Draw(g_pTexture, NULL, NULL, NULL, 0.0f, &dvTran, 0xFFFFFFFF); } g_pDevice->EndScene(); g_pDevice->Present(NULL, NULL, NULL, NULL);}