Bitmap Displaying Problem

//Windows Example Code//Matthew Bett 2005//Shazam!#include <windows.h>#include <stdio.h>#include <mmsystem.h>#include <math.h>#include <gl/gl.h>#include <gl/glu.h>#include <gl/glaux.h>#define COLOUR_DEPTH 16	//Colour depthtypedef struct Mouse{	int x,y;}Mouse;//rotation 'rate'float rot= 0.0;//scale in xyzfloat sx = 1.0;float sy = 1.0;float sz = 1.0;GLfloat		xrot;								// X Rotation GLfloat		yrot;								// Y Rotation GLfloat		zrot;								// Z Rotation GLuint		texture[1];							// Storage For One Texture (change number for more textures)GLfloat Light_Ambient[] = {0.3f, 0.3f, 0.3f, 1.0f};  //RGBA of ambient lightGLfloat Light_Diffuse[] = {6.0f, 6.0f, 6.0f, 1.0f};  //RGBA of light scattered after impactGLfloat Light_Position[]= {-3.0f, 0.0f, 1.5f, 1.0f};  //Position of light sourceGLfloat Light_Specular[]= {0.0f, 0.0f, 1.0f, 1.0f};  //RGBA of bounced beamGLfloat no_shininess[]={0.5};  //makes object completley unreflectiveGLfloat mat_emission[]={0.0,0.3,0.8,0.0}; //RGBA 'emitted' by ojbectHWND        ghwnd;HDC			ghdc;HGLRC		ghrc;			//hardware RENDERING CONTEXTHINSTANCE	ghInstance;RECT		gRect;RECT		screenRect;int S_WIDTH	 =	800;		//client area resolutionint S_HEIGHT =	600;bool		keys[256];Mouse MousePos;LRESULT CALLBACK WndProc (HWND, UINT, WPARAM, LPARAM);void DrawScene();AUX_RGBImageRec *LoadBMP(char *Filename)					// Loads A Bitmap Image{	FILE *File=NULL;							// File Handle	if (!Filename)								// Make Sure A Filename Was Given	{		return NULL;							// If Not Return NULL	}	File=fopen(Filename,"r");						// Check To See If The File Existsif (File)								// Does The File Exist?	{		fclose(File);							// Close The Handle		return auxDIBImageLoad(Filename);				// Load The Bitmap And Return A Pointer	}	return NULL;								// If Load Failed Return NULL}int LoadGLTextures()									// Load Bitmaps And Convert To Textures{	int Status=FALSE;									// Status Indicator	AUX_RGBImageRec *TextureImage[1];					// Create Storage Space For The Texture	memset(TextureImage,0,sizeof(void *)*1);           	// Set The Pointer To NULL	// Load The Bitmap, Check For Errors, If Bitmap's Not Found Quit	if (TextureImage[0]=LoadBMP("Data/NeHe.bmp"))	{		Status=TRUE;									// Set The Status To TRUE		glGenTextures(1, &texture[0]);					// Create The Texture		// Typical Texture Generation Using Data From The Bitmap		glBindTexture(GL_TEXTURE_2D, texture[0]);		glTexImage2D(GL_TEXTURE_2D, 0, 3, TextureImage[0]->sizeX, TextureImage[0]->sizeY, 0, GL_RGB, GL_UNSIGNED_BYTE, TextureImage[0]->data);		glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_LINEAR);		glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_LINEAR);	}	if (TextureImage[0])									// If Texture Exists	{		if (TextureImage[0]->data)							// If Texture Image Exists		{			free(TextureImage[0]->data);					// Free The Texture Image Memory		}		free(TextureImage[0]);								// Free The Image Structure			if(Status==FALSE)		{			MessageBox (NULL, "Bitmap failed to load!",  "Oh Noes!", MB_OK); // error check		}	}	return Status;								// Return The Status}void ResizeGLWindow(int width, int height)// Initialize The GL Window{	if (height==0)// Prevent A Divide By Zero error	{		height=1;// Make the Height Equal One	}	glViewport(0,0,width,height);	glMatrixMode(GL_PROJECTION);	glLoadIdentity();	//calculate aspect ratio	gluPerspective(45.0f,(GLfloat)width/(GLfloat)height, 1 ,150.0f);	glMatrixMode(GL_MODELVIEW);// Select The Modelview Matrix	glLoadIdentity();// Reset The Modelview Matrix}HWND CreateOurWindow(LPSTR strWindowName, int width, int height, DWORD dwstyle, bool bFullScreen, HINSTANCE hInstance){	HWND hwnd;	WNDCLASS wcex;	memset(&wcex, 0, sizeof(WNDCLASS));	wcex.style			= CS_HREDRAW | CS_VREDRAW;			wcex.lpfnWndProc	= WndProc;			wcex.hInstance		= hInstance;							wcex.hIcon			= LoadIcon(NULL, IDI_APPLICATION);; 	wcex.hCursor		= LoadCursor(NULL, IDC_ARROW);			wcex.hbrBackground	= (HBRUSH) (COLOR_WINDOW+1);	wcex.lpszMenuName	= NULL;		wcex.lpszClassName	= "FirstWindowClass";			RegisterClass(&wcex);// Register the class	dwstyle = WS_OVERLAPPEDWINDOW | WS_CLIPSIBLINGS | WS_CLIPCHILDREN;	ghInstance	= hInstance;// Assign our global hInstance to the window's hInstance	//Set the Client area of the window to be our resolution.	RECT glwindow;	glwindow.left		= 0;			glwindow.right		= width;		glwindow.top		= 0;			glwindow.bottom		= height;		AdjustWindowRect( &glwindow, dwstyle, false);	//Create the window	hwnd = CreateWindow(	"FirstWindowClass", 							strWindowName, 							dwstyle, 							0, 							0,							glwindow.right  - glwindow.left,							glwindow.bottom - glwindow.top, 							NULL,							NULL,							hInstance,							NULL							);	if(!hwnd) return NULL;// If we could get a handle, return NULL	ShowWindow(hwnd, SW_SHOWNORMAL);		UpdateWindow(hwnd);						SetFocus(hwnd);							return hwnd;}bool SetPixelFormat(HDC hdc) {     PIXELFORMATDESCRIPTOR pfd = {0};     int pixelformat;      pfd.nSize = sizeof(PIXELFORMATDESCRIPTOR);	// Set the size of the structure    pfd.nVersion = 1;							// Always set this to 1	// Pass in the appropriate OpenGL flags    pfd.dwFlags = PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER;     pfd.dwLayerMask = PFD_MAIN_PLANE;			// standard mask (this is ignored anyway)    pfd.iPixelType = PFD_TYPE_RGBA;				// RGB and Alpha pixel type    pfd.cColorBits = COLOUR_DEPTH;				// Here we use our #define for the color bits    pfd.cDepthBits = COLOUR_DEPTH;				// Ignored for RBA    pfd.cAccumBits = 0;							// nothing for accumulation    pfd.cStencilBits = 0;						// nothing for stencil 	//Gets a best match on the pixel format as passed in from device    if ( (pixelformat = ChoosePixelFormat(hdc, &pfd)) == false )     {         MessageBox(NULL, "ChoosePixelFormat failed", "Error", MB_OK);         return false;     }  	//sets the pixel format if its ok.     if (SetPixelFormat(hdc, pixelformat, &pfd) == false)     {         MessageBox(NULL, "SetPixelFormat failed", "Error", MB_OK);         return false;     }      return true;}int InitializeOpenGL(int width, int height) {      ghdc = GetDC(ghwnd);//  sets  global HDC    if (!SetPixelFormat(ghdc))//  sets  pixel format        PostQuitMessage (0);	if (!LoadGLTextures())							// Jump To Texture Loading Routine ( NEW )	{		return FALSE;							// If Texture Didn't Load Return FALSE ( NEW )	}    ghrc = wglCreateContext(ghdc);	//  creates  rendering context from  hdc    wglMakeCurrent(ghdc, ghrc);		//	Use this HRC.	ResizeGLWindow(width, height);	// Setup the Screen}void Init(HWND hwnd){	ghwnd = hwnd;	GetClientRect(ghwnd, &gRect);	//get rect into our handy global rect	InitializeOpenGL(gRect.right, gRect.bottom);// initialise openGL	//OpenGL settings	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	////IMPORTANT		glEnable(GL_LIGHTING); 	//ENABLES LIGHTING		//Also, do any other setting ov variables here for your app if you wish. } void DrawScene() {		int i=0;	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);// Clear The Screen And The Depth Buffer	glLoadIdentity();// load Identity Matrix	//set camera looking down the -z axis,  6 units away from the center	gluLookAt(0, 0, 10,     0, 0, 0,     0, 1, 0); //Where we are, What we look at, and which way is up	//	glScalef(sx, sy, sz);	glRotatef(xrot,1.0f,0.0f,0.0f);						// Rotate On The X Axis	glRotatef(yrot,0.0f,1.0f,0.0f);						// Rotate On The Y Axis	glRotatef(zrot,0.0f,0.0f,1.0f);						// Rotate On The Z Axis//	glTranslatef( 0.0, 1.0, 0.0 );	glRotatef(rot, 0 ,1 ,0);	glLightfv(GL_LIGHT1, GL_AMBIENT,  Light_Ambient);	glLightfv(GL_LIGHT1, GL_DIFFUSE,  Light_Diffuse);	glLightfv(GL_LIGHT1, GL_POSITION, Light_Position);	glLightfv(GL_LIGHT1, GL_SPECULAR, Light_Specular);	glEnable(GL_LIGHT1);	glBindTexture(GL_TEXTURE_2D, texture[0]);				// Select Our Texture	glEnable(GL_TEXTURE_2D);						// Enable Texture Mapping	glBegin(GL_QUADS);		// Front Face		glNormal3f(0, 0, 1);		glTexCoord2f(0.0f, 0.0f); glVertex3f(-1.0f, -1.0f,  1.0f);	// Bottom Left Of The Texture and Quad		glNormal3f(0, 0, 1);		glTexCoord2f(1.0f, 0.0f); glVertex3f( 1.0f, -1.0f,  1.0f);	// Bottom Right Of The Texture and Quad		glNormal3f(0, 0, 1);		glTexCoord2f(1.0f, 1.0f); glVertex3f( 1.0f,  1.0f,  1.0f);	// Top Right Of The Texture and Quad		glNormal3f(0, 0, 1);		glTexCoord2f(0.0f, 1.0f); glVertex3f(-1.0f,  1.0f,  1.0f);	// Top Left Of The Texture and Quad		// Back Face		glNormal3f(0, 0, -1);		glTexCoord2f(1.0f, 0.0f); glVertex3f(-1.0f, -1.0f, -1.0f);	// Bottom Right Of The Texture and Quad		glNormal3f(0, 0, -1);		glTexCoord2f(1.0f, 1.0f); glVertex3f(-1.0f,  1.0f, -1.0f);	// Top Right Of The Texture and Quad		glNormal3f(0, 0, -1);		glTexCoord2f(0.0f, 1.0f); glVertex3f( 1.0f,  1.0f, -1.0f);	// Top Left Of The Texture and Quad		glNormal3f(0, 0, -1);		glTexCoord2f(0.0f, 0.0f); glVertex3f( 1.0f, -1.0f, -1.0f);	// Bottom Left Of The Texture and Quad		// Top Face		glNormal3f(0, 1, 0);		glTexCoord2f(0.0f, 1.0f); glVertex3f(-1.0f,  1.0f, -1.0f);	// Top Left Of The Texture and Quad		glNormal3f(0, 1, 0);		glTexCoord2f(0.0f, 0.0f); glVertex3f(-1.0f,  1.0f,  1.0f);	// Bottom Left Of The Texture and Quad		glNormal3f(0, 1, 0);		glTexCoord2f(1.0f, 0.0f); glVertex3f( 1.0f,  1.0f,  1.0f);	// Bottom Right Of The Texture and Quad		glNormal3f(0, 1, 0);		glTexCoord2f(1.0f, 1.0f); glVertex3f( 1.0f,  1.0f, -1.0f);	// Top Right Of The Texture and Quad		// Bottom Face		glNormal3f(0, -1, 0);		glTexCoord2f(1.0f, 1.0f); glVertex3f(-1.0f, -1.0f, -1.0f);	// Top Right Of The Texture and Quad		glNormal3f(0, -1, 0);		glTexCoord2f(0.0f, 1.0f); glVertex3f( 1.0f, -1.0f, -1.0f);	// Top Left Of The Texture and Quad		glNormal3f(0, -1, 0);		glTexCoord2f(0.0f, 0.0f); glVertex3f( 1.0f, -1.0f,  1.0f);	// Bottom Left Of The Texture and Quad		glNormal3f(0, -1, 0);		glTexCoord2f(1.0f, 0.0f); glVertex3f(-1.0f, -1.0f,  1.0f);	// Bottom Right Of The Texture and Quad		// Right face		glNormal3f(1, 0, 0);		glTexCoord2f(1.0f, 0.0f); glVertex3f( 1.0f, -1.0f, -1.0f);	// Bottom Right Of The Texture and Quad		glNormal3f(1, 0, 0);		glTexCoord2f(1.0f, 1.0f); glVertex3f( 1.0f,  1.0f, -1.0f);	// Top Right Of The Texture and Quad		glNormal3f(1, 0, 0);		glTexCoord2f(0.0f, 1.0f); glVertex3f( 1.0f,  1.0f,  1.0f);	// Top Left Of The Texture and Quad		glNormal3f(1, 0, 0);		glTexCoord2f(0.0f, 0.0f); glVertex3f( 1.0f, -1.0f,  1.0f);	// Bottom Left Of The Texture and Quad		// Left Face		glNormal3f(-1, 0, 0);		glTexCoord2f(0.0f, 0.0f); glVertex3f(-1.0f, -1.0f, -1.0f);	// Bottom Left Of The Texture and Quad		glNormal3f(-1, 0, 0);		glTexCoord2f(1.0f, 0.0f); glVertex3f(-1.0f, -1.0f,  1.0f);	// Bottom Right Of The Texture and Quad		glNormal3f(-1, 0, 0);		glTexCoord2f(1.0f, 1.0f); glVertex3f(-1.0f,  1.0f,  1.0f);	// Top Right Of The Texture and Quad		glNormal3f(-1, 0, 0);		glTexCoord2f(0.0f, 1.0f); glVertex3f(-1.0f,  1.0f, -1.0f);	// Top Left Of The Texture and Quad	glEnd();	glDisable(GL_TEXTURE_2D);						// Disable Texture Mapping	xrot+=0.3f;								// X Axis Rotation	yrot+=0.2f;								// Y Axis Rotation	zrot+=0.4f;								// Z Axis Rotation	SwapBuffers(ghdc);// Swap the frame buffers.}void Cleanup(){	if (ghrc)	{		wglMakeCurrent(NULL, NULL);	// free rendering memory		wglDeleteContext(ghrc);		// Delete our OpenGL Rendering Context	}	if (ghdc) 	ReleaseDC(ghwnd, ghdc);			// Release our HDC from memory	UnregisterClass("FirstWindowClass", ghInstance);// Free the window class	PostQuitMessage (0);		// Post a QUIT message to the window}LRESULT CALLBACK WndProc (HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam){    switch (message)											    {																case WM_CREATE:				break;		case WM_SIZE:			//resize the open gl window when the window is resized			ResizeGLWindow(LOWORD(lParam),HIWORD(lParam));			GetClientRect(hwnd, &gRect);			break;			case WM_KEYDOWN:		       switch (wParam)             { 				case VK_SPACE:                    glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);                    break; 					case VK_RETURN:                    glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);					break;            	case 'A':					rot+=1.0;                    break;				case 'D':					rot-=1.0;					break;				case 'Q':					PostQuitMessage(0);						break;				case 'T':					sx+=0.15;					break;				case 'G':					sx-=0.15;					break;				case 'Y':					sy+=0.15;					break;				case 'H':					sy-=0.15;					break;				case 'U':					sz+=0.15;					break;				case 'J':					sz-=0.15;					break;			}		case WM_KEYUP:			keys[wParam]=false;			break;		case WM_MOUSEMOVE:			MousePos.x = LOWORD (lParam);			MousePos.y = HIWORD (lParam);			break;		case WM_PAINT:						    break;				case WM_DESTROY:							PostQuitMessage(0);												break;					}														return DefWindowProc (hwnd, message, wParam, lParam);																	}int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance,                    PSTR szCmdLine, int nCmdShow)			{		HWND		hwnd;    MSG         msg;		//initialise and create window	hwnd = CreateOurWindow("SuperDuper Opengl APP", S_WIDTH, S_HEIGHT, 0, false, hInstance);		if(hwnd == NULL) return true;	//initialise opengl and other settings	Init(hwnd);		while (true)					    {									if (PeekMessage(&msg,NULL,0,0,PM_REMOVE))		{		    if (msg.message==WM_QUIT)				break;			TranslateMessage (&msg);										DispatchMessage (&msg);		}		else		{					//any intensive proccessing for the app,  do it here. 			DrawScene();		}    }	return msg.wParam ;										}