程序如下:

/* *        This Code Was Created By Jeff Molofee 2000 *        A HUGE Thanks To Fredric Echols For Cleaning Up *        And Optimizing The Base Code, Making It More Flexible! *        If You've Found This Code Useful, Please Let Me Know. *        Visit My Site At nehe.gamedev.net */#include 
     
              // Header File For Windows#include 
      
                   // Header File For Standard Input/Output#include 
       
                    // Header File For The OpenGL32 Library#include 
        
                     // Header File For The GLu32 Library#include "FreeImage.h"#pragma comment(lib,"opengl32.lib")#pragma comment(lib,"glu32.lib")HDC            hDC=NULL;        // Private GDI Device ContextHGLRC        hRC=NULL;        // Permanent Rendering ContextHWND        hWnd=NULL;        // Holds Our Window HandleHINSTANCE    hInstance;        // Holds The Instance Of The Applicationbool    keys[256];            // Array Used For The Keyboard Routinebool    active=TRUE;        // Window Active Flag Set To TRUE By Defaultbool    fullscreen=TRUE;    // Fullscreen Flag Set To Fullscreen Mode By DefaultGLfloat    xrot;                // X Rotation ( NEW )GLfloat    yrot;                // Y Rotation ( NEW )GLfloat    zrot;                // Z Rotation ( NEW )GLuint    texture[1];            // Storage For One Texture ( NEW )LRESULT    CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);    // Declaration For WndProcint LoadGLTextures()                                    // Load Bitmaps And Convert To Textures{    int Status=FALSE;                                    // Status Indicator    //image format    FREE_IMAGE_FORMAT fif = FIF_UNKNOWN;    //pointer to the image, once loaded    FIBITMAP *dib=NULL;    //pointer to the image data    BYTE* bits=NULL;    //image width and height    unsigned int width, height;    FreeImage_Initialise(FALSE);    glPixelStorei(GL_UNPACK_ALIGNMENT, 1);    fif = FreeImage_GetFileType("musu003.png", 0);    //if still unknown, try to guess the file format from the file extension    if(fif == FIF_UNKNOWN)         fif = FreeImage_GetFIFFromFilename("musu003.png");    //if still unkown, return failure    if(fif == FIF_UNKNOWN)        return Status;    //check that the plugin has reading capabilities and load the file    if(FreeImage_FIFSupportsReading(fif))        dib = FreeImage_Load(fif, "musu003.png",0);    //if the image failed to load, return failure    if(!dib)        return Status;    //retrieve the image data    bits = FreeImage_GetBits(dib);    //get the image width and height    width = FreeImage_GetWidth(dib);    height = FreeImage_GetHeight(dib);    unsigned bpp = FreeImage_GetBPP(dib);    //if this somehow one of these failed (they shouldn't), return failure    if((bits == 0) || (width == 0) || (height == 0))        return Status;    unsigned int bytePerPixel=bpp/8;   //每像素占多少字节    //bit的数据格式是BGR，B和R应该交换过来    for(int imageIdx=0;imageIdx<(width*height*bytePerPixel);imageIdx+=bytePerPixel)        {        unsigned char tempRGB=bits[imageIdx];        bits[imageIdx]=bits[imageIdx+2];        bits[imageIdx+2]=tempRGB;    }    Status=TRUE;    glGenTextures(1, &texture[0]);                    // Create The Texture    // Typical Texture Generation Using Data From The Bitmap    glBindTexture(GL_TEXTURE_2D, texture[0]);    //倒数第三个参数是GL_RGBA，因为这里用的png图，bpp=32,如果用的jpg图，bpp=24,则此参数应为GL_RGB    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, bits);    glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_LINEAR);    glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_LINEAR);    return Status;                                        // Return The Status}GLvoid ReSizeGLScene(GLsizei width, GLsizei height)        // Resize And Initialize The GL Window{    if (height==0)                                        // Prevent A Divide By Zero By    {        height=1;                                        // Making Height Equal One    }    glViewport(0,0,width,height);                        // Reset The Current Viewport    glMatrixMode(GL_PROJECTION);                        // Select The Projection Matrix    glLoadIdentity();                                    // Reset The Projection Matrix    // Calculate The Aspect Ratio Of The Window    gluPerspective(45.0f,(GLfloat)width/(GLfloat)height,0.1f,100.0f);    glMatrixMode(GL_MODELVIEW);                            // Select The Modelview Matrix    glLoadIdentity();                                    // Reset The Modelview Matrix}int InitGL(GLvoid)                                        // All Setup For OpenGL Goes Here{    if (!LoadGLTextures())                                // Jump To Texture Loading Routine ( NEW )    {        return FALSE;                                    // If Texture Didn't Load Return FALSE    }    glEnable(GL_TEXTURE_2D);                            // Enable Texture Mapping ( NEW )    glShadeModel(GL_SMOOTH);                            // Enable Smooth Shading    glClearColor(0.0f, 0.0f, 0.0f, 0.5f);                // Black Background    glClearDepth(1.0f);                                    // Depth Buffer Setup    glEnable(GL_DEPTH_TEST);                            // Enables Depth Testing    glDepthFunc(GL_LEQUAL);                                // The Type Of Depth Testing To Do    glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST);    // Really Nice Perspective Calculations    return TRUE;                                        // Initialization Went OK}int DrawGLScene(GLvoid)                                    // Here's Where We Do All The Drawing{    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);    // Clear The Screen And The Depth Buffer    glLoadIdentity();                                    // Reset The View    glTranslatef(0.0f,0.0f,-5.0f);    glRotatef(xrot,1.0f,0.0f,0.0f);    glRotatef(yrot,0.0f,1.0f,0.0f);    glRotatef(zrot,0.0f,0.0f,1.0f);    glBindTexture(GL_TEXTURE_2D, texture[0]);    glBegin(GL_QUADS);        // Front Face        glTexCoord2f(0.0f, 0.0f); glVertex3f(-1.0f, -1.0f,  1.0f);        glTexCoord2f(1.0f, 0.0f); glVertex3f( 1.0f, -1.0f,  1.0f);        glTexCoord2f(1.0f, 1.0f); glVertex3f( 1.0f,  1.0f,  1.0f);        glTexCoord2f(0.0f, 1.0f); glVertex3f(-1.0f,  1.0f,  1.0f);        // Back Face        glTexCoord2f(1.0f, 0.0f); glVertex3f(-1.0f, -1.0f, -1.0f);        glTexCoord2f(1.0f, 1.0f); glVertex3f(-1.0f,  1.0f, -1.0f);        glTexCoord2f(0.0f, 1.0f); glVertex3f( 1.0f,  1.0f, -1.0f);        glTexCoord2f(0.0f, 0.0f); glVertex3f( 1.0f, -1.0f, -1.0f);        // Top Face        glTexCoord2f(0.0f, 1.0f); glVertex3f(-1.0f,  1.0f, -1.0f);        glTexCoord2f(0.0f, 0.0f); glVertex3f(-1.0f,  1.0f,  1.0f);        glTexCoord2f(1.0f, 0.0f); glVertex3f( 1.0f,  1.0f,  1.0f);        glTexCoord2f(1.0f, 1.0f); glVertex3f( 1.0f,  1.0f, -1.0f);        // Bottom Face        glTexCoord2f(1.0f, 1.0f); glVertex3f(-1.0f, -1.0f, -1.0f);        glTexCoord2f(0.0f, 1.0f); glVertex3f( 1.0f, -1.0f, -1.0f);        glTexCoord2f(0.0f, 0.0f); glVertex3f( 1.0f, -1.0f,  1.0f);        glTexCoord2f(1.0f, 0.0f); glVertex3f(-1.0f, -1.0f,  1.0f);        // Right face        glTexCoord2f(1.0f, 0.0f); glVertex3f( 1.0f, -1.0f, -1.0f);        glTexCoord2f(1.0f, 1.0f); glVertex3f( 1.0f,  1.0f, -1.0f);        glTexCoord2f(0.0f, 1.0f); glVertex3f( 1.0f,  1.0f,  1.0f);        glTexCoord2f(0.0f, 0.0f); glVertex3f( 1.0f, -1.0f,  1.0f);        // Left Face        glTexCoord2f(0.0f, 0.0f); glVertex3f(-1.0f, -1.0f, -1.0f);        glTexCoord2f(1.0f, 0.0f); glVertex3f(-1.0f, -1.0f,  1.0f);        glTexCoord2f(1.0f, 1.0f); glVertex3f(-1.0f,  1.0f,  1.0f);        glTexCoord2f(0.0f, 1.0f); glVertex3f(-1.0f,  1.0f, -1.0f);    glEnd();    xrot+=0.03f;    yrot+=0.02f;    zrot+=0.04f;    return TRUE;                                        // Keep Going}GLvoid KillGLWindow(GLvoid)                                // Properly Kill The Window{    if (fullscreen)                                        // Are We In Fullscreen Mode?    {        ChangeDisplaySettings(NULL,0);                    // If So Switch Back To The Desktop        ShowCursor(TRUE);                                // Show Mouse Pointer    }    if (hRC)                                            // Do We Have A Rendering Context?    {        if (!wglMakeCurrent(NULL,NULL))                    // Are We Able To Release The DC And RC Contexts?        {            MessageBox(NULL,"Release Of DC And RC Failed.","SHUTDOWN ERROR",MB_OK | MB_ICONINFORMATION);        }        if (!wglDeleteContext(hRC))                        // Are We Able To Delete The RC?        {            MessageBox(NULL,"Release Rendering Context Failed.","SHUTDOWN ERROR",MB_OK | MB_ICONINFORMATION);        }        hRC=NULL;                                        // Set RC To NULL    }    if (hDC && !ReleaseDC(hWnd,hDC))                    // Are We Able To Release The DC    {        MessageBox(NULL,"Release Device Context Failed.","SHUTDOWN ERROR",MB_OK | MB_ICONINFORMATION);        hDC=NULL;                                        // Set DC To NULL    }    if (hWnd && !DestroyWindow(hWnd))                    // Are We Able To Destroy The Window?    {        MessageBox(NULL,"Could Not Release hWnd.","SHUTDOWN ERROR",MB_OK | MB_ICONINFORMATION);        hWnd=NULL;                                        // Set hWnd To NULL    }    if (!UnregisterClass("OpenGL",hInstance))            // Are We Able To Unregister Class    {        MessageBox(NULL,"Could Not Unregister Class.","SHUTDOWN ERROR",MB_OK | MB_ICONINFORMATION);        hInstance=NULL;                                    // Set hInstance To NULL    }}/*    This Code Creates Our OpenGL Window.  Parameters Are:                    * *    title            - Title To Appear At The Top Of The Window                * *    width            - Width Of The GL Window Or Fullscreen Mode                * *    height            - Height Of The GL Window Or Fullscreen Mode            * *    bits            - Number Of Bits To Use For Color (8/16/24/32)            * *    fullscreenflag    - Use Fullscreen Mode (TRUE) Or Windowed Mode (FALSE)    */ BOOL CreateGLWindow(char* title, int width, int height, int bits, bool fullscreenflag){    GLuint        PixelFormat;            // Holds The Results After Searching For A Match    WNDCLASS    wc;                        // Windows Class Structure    DWORD        dwExStyle;                // Window Extended Style    DWORD        dwStyle;                // Window Style    RECT        WindowRect;                // Grabs Rectangle Upper Left / Lower Right Values    WindowRect.left=(long)0;            // Set Left Value To 0    WindowRect.right=(long)width;        // Set Right Value To Requested Width    WindowRect.top=(long)0;                // Set Top Value To 0    WindowRect.bottom=(long)height;        // Set Bottom Value To Requested Height    fullscreen=fullscreenflag;            // Set The Global Fullscreen Flag    hInstance            = GetModuleHandle(NULL);                // Grab An Instance For Our Window    wc.style            = CS_HREDRAW | CS_VREDRAW | CS_OWNDC;    // Redraw On Size, And Own DC For Window.    wc.lpfnWndProc        = (WNDPROC) WndProc;                    // WndProc Handles Messages    wc.cbClsExtra        = 0;                                    // No Extra Window Data    wc.cbWndExtra        = 0;                                    // No Extra Window Data    wc.hInstance        = hInstance;                            // Set The Instance    wc.hIcon            = LoadIcon(NULL, IDI_WINLOGO);            // Load The Default Icon    wc.hCursor            = LoadCursor(NULL, IDC_ARROW);            // Load The Arrow Pointer    wc.hbrBackground    = NULL;                                    // No Background Required For GL    wc.lpszMenuName        = NULL;                                    // We Don't Want A Menu    wc.lpszClassName    = "OpenGL";                                // Set The Class Name    if (!RegisterClass(&wc))                                    // Attempt To Register The Window Class    {        MessageBox(NULL,"Failed To Register The Window Class.","ERROR",MB_OK|MB_ICONEXCLAMATION);        return FALSE;                                            // Return FALSE    }        if (fullscreen)                                                // Attempt Fullscreen Mode?    {        DEVMODE dmScreenSettings;                                // Device Mode        memset(&dmScreenSettings,0,sizeof(dmScreenSettings));    // Makes Sure Memory's Cleared        dmScreenSettings.dmSize=sizeof(dmScreenSettings);        // Size Of The Devmode Structure        dmScreenSettings.dmPelsWidth    = width;                // Selected Screen Width        dmScreenSettings.dmPelsHeight    = height;                // Selected Screen Height        dmScreenSettings.dmBitsPerPel    = bits;                    // Selected Bits Per Pixel        dmScreenSettings.dmFields=DM_BITSPERPEL|DM_PELSWIDTH|DM_PELSHEIGHT;        // Try To Set Selected Mode And Get Results.  NOTE: CDS_FULLSCREEN Gets Rid Of Start Bar.        if (ChangeDisplaySettings(&dmScreenSettings,CDS_FULLSCREEN)!=DISP_CHANGE_SUCCESSFUL)        {            // If The Mode Fails, Offer Two Options.  Quit Or Use Windowed Mode.            if (MessageBox(NULL,"The Requested Fullscreen Mode Is Not Supported By\nYour Video Card. Use Windowed Mode Instead?","NeHe GL",MB_YESNO|MB_ICONEXCLAMATION)==IDYES)            {                fullscreen=FALSE;        // Windowed Mode Selected.  Fullscreen = FALSE            }            else            {                // Pop Up A Message Box Letting User Know The Program Is Closing.                MessageBox(NULL,"Program Will Now Close.","ERROR",MB_OK|MB_ICONSTOP);                return FALSE;                                    // Return FALSE            }        }    }    if (fullscreen)                                                // Are We Still In Fullscreen Mode?    {        dwExStyle=WS_EX_APPWINDOW;                                // Window Extended Style        dwStyle=WS_POPUP;                                        // Windows Style        ShowCursor(FALSE);                                        // Hide Mouse Pointer    }    else    {        dwExStyle=WS_EX_APPWINDOW | WS_EX_WINDOWEDGE;            // Window Extended Style        dwStyle=WS_OVERLAPPEDWINDOW;                            // Windows Style    }    AdjustWindowRectEx(&WindowRect, dwStyle, FALSE, dwExStyle);        // Adjust Window To True Requested Size    // Create The Window    if (!(hWnd=CreateWindowEx(    dwExStyle,                            // Extended Style For The Window                                "OpenGL",                            // Class Name                                title,                                // Window Title                                dwStyle |                            // Defined Window Style                                WS_CLIPSIBLINGS |                    // Required Window Style                                WS_CLIPCHILDREN,                    // Required Window Style                                0, 0,                                // Window Position                                WindowRect.right-WindowRect.left,    // Calculate Window Width                                WindowRect.bottom-WindowRect.top,    // Calculate Window Height                                NULL,                                // No Parent Window                                NULL,                                // No Menu                                hInstance,                            // Instance                                NULL)))                                // Dont Pass Anything To WM_CREATE    {        KillGLWindow();                                // Reset The Display        MessageBox(NULL,"Window Creation Error.","ERROR",MB_OK|MB_ICONEXCLAMATION);        return FALSE;                                // Return FALSE    }    static    PIXELFORMATDESCRIPTOR pfd=                // pfd Tells Windows How We Want Things To Be    {        sizeof(PIXELFORMATDESCRIPTOR),                // Size Of This Pixel Format Descriptor        1,                                            // Version Number        PFD_DRAW_TO_WINDOW |                        // Format Must Support Window        PFD_SUPPORT_OPENGL |                        // Format Must Support OpenGL        PFD_DOUBLEBUFFER,                            // Must Support Double Buffering        PFD_TYPE_RGBA,                                // Request An RGBA Format        bits,                                        // Select Our Color Depth        0, 0, 0, 0, 0, 0,                            // Color Bits Ignored        0,                                            // No Alpha Buffer        0,                                            // Shift Bit Ignored        0,                                            // No Accumulation Buffer        0, 0, 0, 0,                                    // Accumulation Bits Ignored        16,                                            // 16Bit Z-Buffer (Depth Buffer)          0,                                            // No Stencil Buffer        0,                                            // No Auxiliary Buffer        PFD_MAIN_PLANE,                                // Main Drawing Layer        0,                                            // Reserved        0, 0, 0                                        // Layer Masks Ignored    };        if (!(hDC=GetDC(hWnd)))                            // Did We Get A Device Context?    {        KillGLWindow();                                // Reset The Display        MessageBox(NULL,"Can't Create A GL Device Context.","ERROR",MB_OK|MB_ICONEXCLAMATION);        return FALSE;                                // Return FALSE    }    if (!(PixelFormat=ChoosePixelFormat(hDC,&pfd)))    // Did Windows Find A Matching Pixel Format?    {        KillGLWindow();                                // Reset The Display        MessageBox(NULL,"Can't Find A Suitable PixelFormat.","ERROR",MB_OK|MB_ICONEXCLAMATION);        return FALSE;                                // Return FALSE    }    if(!SetPixelFormat(hDC,PixelFormat,&pfd))        // Are We Able To Set The Pixel Format?    {        KillGLWindow();                                // Reset The Display        MessageBox(NULL,"Can't Set The PixelFormat.","ERROR",MB_OK|MB_ICONEXCLAMATION);        return FALSE;                                // Return FALSE    }    if (!(hRC=wglCreateContext(hDC)))                // Are We Able To Get A Rendering Context?    {        KillGLWindow();                                // Reset The Display        MessageBox(NULL,"Can't Create A GL Rendering Context.","ERROR",MB_OK|MB_ICONEXCLAMATION);        return FALSE;                                // Return FALSE    }    if(!wglMakeCurrent(hDC,hRC))                    // Try To Activate The Rendering Context    {        KillGLWindow();                                // Reset The Display        MessageBox(NULL,"Can't Activate The GL Rendering Context.","ERROR",MB_OK|MB_ICONEXCLAMATION);        return FALSE;                                // Return FALSE    }    ShowWindow(hWnd,SW_SHOW);                        // Show The Window    SetForegroundWindow(hWnd);                        // Slightly Higher Priority    SetFocus(hWnd);                                    // Sets Keyboard Focus To The Window    ReSizeGLScene(width, height);                    // Set Up Our Perspective GL Screen    if (!InitGL())                                    // Initialize Our Newly Created GL Window    {        KillGLWindow();                                // Reset The Display        MessageBox(NULL,"Initialization Failed.","ERROR",MB_OK|MB_ICONEXCLAMATION);        return FALSE;                                // Return FALSE    }    return TRUE;                                    // Success}LRESULT CALLBACK WndProc(    HWND    hWnd,            // Handle For This Window                            UINT    uMsg,            // Message For This Window                            WPARAM    wParam,            // Additional Message Information                            LPARAM    lParam)            // Additional Message Information{    switch (uMsg)                                    // Check For Windows Messages    {        case WM_ACTIVATE:                            // Watch For Window Activate Message        {            if (!HIWORD(wParam))                    // Check Minimization State            {                active=TRUE;                        // Program Is Active            }            else            {                active=FALSE;                        // Program Is No Longer Active            }            return 0;                                // Return To The Message Loop        }        case WM_SYSCOMMAND:                            // Intercept System Commands        {            switch (wParam)                            // Check System Calls            {                case SC_SCREENSAVE:                    // Screensaver Trying To Start?                case SC_MONITORPOWER:                // Monitor Trying To Enter Powersave?                return 0;                            // Prevent From Happening            }            break;                                    // Exit        }        case WM_CLOSE:                                // Did We Receive A Close Message?        {            PostQuitMessage(0);                        // Send A Quit Message            return 0;                                // Jump Back        }        case WM_KEYDOWN:                            // Is A Key Being Held Down?        {            keys[wParam] = TRUE;                    // If So, Mark It As TRUE            return 0;                                // Jump Back        }        case WM_KEYUP:                                // Has A Key Been Released?        {            keys[wParam] = FALSE;                    // If So, Mark It As FALSE            return 0;                                // Jump Back        }        case WM_SIZE:                                // Resize The OpenGL Window        {            ReSizeGLScene(LOWORD(lParam),HIWORD(lParam));  // LoWord=Width, HiWord=Height            return 0;                                // Jump Back        }    }    // Pass All Unhandled Messages To DefWindowProc    return DefWindowProc(hWnd,uMsg,wParam,lParam);}int WINAPI WinMain(    HINSTANCE    hInstance,            // Instance                    HINSTANCE    hPrevInstance,        // Previous Instance                    LPSTR        lpCmdLine,            // Command Line Parameters                    int            nCmdShow)            // Window Show State{    MSG        msg;                                    // Windows Message Structure    BOOL    done=FALSE;                                // Bool Variable To Exit Loop    // Ask The User Which Screen Mode They Prefer    if (MessageBox(NULL,"Would You Like To Run In Fullscreen Mode?", "Start FullScreen?",MB_YESNO|MB_ICONQUESTION)==IDNO)    {        fullscreen=FALSE;                            // Windowed Mode    }    // Create Our OpenGL Window    if (!CreateGLWindow("NeHe's Texture Mapping Tutorial",640,480,16,fullscreen))    {        return 0;                                    // Quit If Window Was Not Created    }    while(!done)                                    // Loop That Runs While done=FALSE    {        if (PeekMessage(&msg,NULL,0,0,PM_REMOVE))    // Is There A Message Waiting?        {            if (msg.message==WM_QUIT)                // Have We Received A Quit Message?            {                done=TRUE;                            // If So done=TRUE            }            else                                    // If Not, Deal With Window Messages            {                TranslateMessage(&msg);                // Translate The Message                DispatchMessage(&msg);                // Dispatch The Message            }        }        else                                        // If There Are No Messages        {            // Draw The Scene.  Watch For ESC Key And Quit Messages From DrawGLScene()            if ((active && !DrawGLScene()) || keys[VK_ESCAPE])    // Active?  Was There A Quit Received?            {                done=TRUE;                            // ESC or DrawGLScene Signalled A Quit            }            else                                    // Not Time To Quit, Update Screen            {                SwapBuffers(hDC);                    // Swap Buffers (Double Buffering)            }            if (keys[VK_F1])                        // Is F1 Being Pressed?            {                keys[VK_F1]=FALSE;                    // If So Make Key FALSE                KillGLWindow();                        // Kill Our Current Window                fullscreen=!fullscreen;                // Toggle Fullscreen / Windowed Mode                // Recreate Our OpenGL Window                if (!CreateGLWindow("NeHe's Texture Mapping Tutorial",640,480,16,fullscreen))                {                    return 0;                        // Quit If Window Was Not Created                }            }        }    }    // Shutdown    KillGLWindow();                                    // Kill The Window    return (msg.wParam);                            // Exit The Program}
        
       
      
     

运行需freeimage库，代码中的musu003.png用其他png文件代替.