nehegl.rar_NEHE_人脸_人脸拟合

/*********************************************** * * * Jeff Molofee's Revised OpenGL Basecode * * Huge Thanks To Maxwell Sayles & Peter Puck * * http://nehe.gamedev.net * * 2001 * * * ***********************************************/ #include <windows.h> // Header File For The Windows Library #include <gl/gl.h> // Header File For The OpenGL32 Library #include <gl/glu.h> // Header File For The GLu32 Library #include "Resource.h" #include "NeHeGL.h" int iState; // Header File For The NeHeGL Basecode #define WM_TOGGLEFULLSCREEN (WM_USER+1) // Application Define Message For Toggling static BOOL g_isProgramLooping; // Window Creation Loop, For FullScreen/Windowed Toggle // Between Fullscreen / Windowed Mode static BOOL g_createFullScreen; // If TRUE, Then Create Fullscreen void TerminateApplication (GL_Window* window) // Terminate The Application { PostMessage (window->hWnd, WM_QUIT, 0, 0); // Send A WM_QUIT Message g_isProgramLooping = FALSE; // Stop Looping Of The Program } void ToggleFullscreen (GL_Window* window) // Toggle Fullscreen/Windowed { PostMessage (window->hWnd, WM_TOGGLEFULLSCREEN, 0, 0); // Send A WM_TOGGLEFULLSCREEN Message } void ReshapeGL (int width, int height) // Reshape The Window When It's Moved Or Resized { glViewport (0, 0, (GLsizei)(width), (GLsizei)(height)); // Reset The Current Viewport glMatrixMode (GL_PROJECTION); // Select The Projection Matrix glLoadIdentity (); // Reset The Projection Matrix gluPerspective (45.0f, (GLfloat)(width)/(GLfloat)(height), // Calculate The Aspect Ratio Of The Window 1.0f, 100.0f); glMatrixMode (GL_MODELVIEW); // Select The Modelview Matrix glLoadIdentity (); // Reset The Modelview Matrix } BOOL ChangeScreenResolution (int width, int height, int bitsPerPixel) // Change The Screen Resolution { DEVMODE dmScreenSettings; // Device Mode ZeroMemory (&dmScreenSettings, sizeof (DEVMODE)); // Make Sure Memory Is Cleared dmScreenSettings.dmSize = sizeof (DEVMODE); // Size Of The Devmode Structure dmScreenSettings.dmPelsWidth = width; // Select Screen Width dmScreenSettings.dmPelsHeight = height; // Select Screen Height dmScreenSettings.dmBitsPerPel = bitsPerPixel; // Select Bits Per Pixel dmScreenSettings.dmFields = DM_BITSPERPEL | DM_PELSWIDTH | DM_PELSHEIGHT; if (ChangeDisplaySettings (&dmScreenSettings, CDS_FULLSCREEN) != DISP_CHANGE_SUCCESSFUL) { return FALSE; // Display Change Failed, Return False } return TRUE; // Display Change Was Successful, Return True } BOOL CreateWindowGL (GL_Window* window) // This Code Creates Our OpenGL Window { DWORD windowStyle = WS_OVERLAPPEDWINDOW; // Define Our Window Style DWORD windowExtendedStyle = WS_EX_APPWINDOW; // Define The Window's Extended Style 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 window->init.bitsPerPixel, // 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 }; RECT windowRect = {0, 0, window->init.width, window->init.height}; // Define Our Window Coordinates GLuint PixelFormat; // Will Hold The Selected Pixel Format if (window->init.isFullScreen == TRUE) // Fullscreen Requested, Try Changing Video Modes { if (ChangeScreenResolution (window->init.width, window->init.height, window->init.bitsPerPixel) == FALSE) { // Fullscreen Mode Failed. Run In Windowed Mode Instead MessageBox (HWND_DESKTOP, "Mode Switch Failed.\nRunning In Windowed Mode.", "Error", MB_OK | MB_ICONEXCLAMATION); window->init.isFullScreen = FALSE; // Set isFullscreen To False (Windowed Mode) } else // Otherwise (If Fullscreen Mode Was Successful) { ShowCursor (FALSE); // Turn Off The Cursor windowStyle = WS_POPUP; // Set The WindowStyle To WS_POPUP (Popup Window) windowExtendedStyle |= WS_EX_TOPMOST; // Set The Extended Window Style To WS_EX_TOPMOST } // (Top Window Covering Everything Else) } else // If Fullscreen Was Not Selected { // Adjust Window, Account For Window Borders AdjustWindowRectEx (&windowRect, windowStyle, 0, windowExtendedStyle); } // Create The OpenGL Window window->hWnd = CreateWindowEx (windowExtendedStyle, // Extended Style window->init.application->className, // Class Name window->init.title, // Window Title windowStyle, // Window Style 0, 0, // Window X,Y Position windowRect.right - windowRect.left, // Window Width windowRect.bottom - windowRect.top, // Window Height HWND_DESKTOP, // Desktop Is Window's Parent LoadMenu(GetModuleHandle(NULL),MAKEINTRESOURCE(IDR_MENU)), // No Menu window->init.application->hInstance, // Pass The Window Instance window); if (window->hWnd == 0) // Was Window Creation A Success? { return FALSE; // If Not Return False } window->hDC = GetDC (window->hWnd); // Grab A Device Context For This Window if (window->hDC == 0) // Did We Get A Device Context? { // Failed DestroyWindow (window->hWnd); // Destroy The Window window->hWnd = 0; // Zero The Window Handle return FALSE; // Return False } PixelFormat = ChoosePixelFormat (window->hDC, &pfd); // Find A Compatible Pixel Format if (PixelFormat == 0) // Did We Find A Compatible Format? { // Failed ReleaseDC (window->hWnd, window->hDC); // Release Our Device Context window->hDC = 0; // Zero The Device Context DestroyWindow (window->hWnd); // Destroy The Window window->hWnd = 0; // Zero The Window Handle return FALSE; // Return False } if (SetPixelFormat (window->hDC, PixelFormat, &pfd) == FALSE) // Try To Set The Pixel Format { // Failed ReleaseDC (window->hWnd, window->hDC); // Release Our Device Context window->hDC = 0; // Zero The Device Context DestroyWindow (window->hWnd); // Destroy The Window window->hWnd = 0; // Zero The Window Handle return FALSE; // Return False } window->hRC = wglCreateContext (window->hDC); // Try To Get A Rendering Context if (window->hRC == 0) // Did We Get A Rendering Context? { // Failed ReleaseDC (window->hWnd, window->hDC); // Release Our Device Context window->hDC = 0; // Zero The Device Context DestroyWindow (window->hWnd); // Destroy The Window window->hWnd = 0; // Zero Th