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#include        <windows.h>
#include        <stdio.h>
#include        <gl\gl.h>
#include        <gl\glu.h>      
#include        <gl\glaux.h>

HDC  hDC=NULL;
HGLRC  hRC=NULL;
HWND  hWnd=NULL;        
HINSTANCE       hInstance;

bool  keys[256];
bool  active=TRUE;
bool  fullscreen=TRUE;

GLfloat  xrot;  
GLfloat  yrot;
GLfloat  zrot;

GLuint  texture[1];
LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);

AUX_RGBImageRec *LoadBMP(char *Filename)
{
        FILE *File=NULL;

if (!Filename)
{
  return NULL;
        }

File=fopen(Filename,"r");

if (File)
{
  fclose(File);
return auxDIBImageLoad(Filename);
        }

return NULL;
}

int LoadGLTextures()
{

int Status=FALSE;

AUX_RGBImageRec *TextureImage[1];

memset(TextureImage,0,sizeof(void *)*1);

if (TextureImage[0]=LoadBMP("Data/NeHe.bmp"))
        {
  Status=TRUE;

glGenTextures(1, &texture[0]);
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 (TextureImage[0]->data)
{
         free(TextureImage[0]->data);
}

  free(TextureImage[0]);
}

return Status;
}

int DrawGLScene(GLvoid)        // Here's Where We Do All The Drawing
{
        glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);      // Clear Screen And Depth Buffer
        glLoadIdentity();        // Reset The Current Matrix
        glTranslatef(0.0f,0.0f,-5.0f);  

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

glBindTexture(GL_TEXTURE_2D, texture[0]);    // Select Our Texture
glBegin(GL_QUADS);
  // Front Face
  glTexCoord2f(0.0f, 0.0f); glVertex3f(-1.0f, -1.0f, 1.0f);    // Bottom Left Of The Texture and Quad
  glTexCoord2f(1.0f, 0.0f); glVertex3f( 1.0f, -1.0f, 1.0f);    // Bottom Right Of The Texture and Quad
  glTexCoord2f(1.0f, 1.0f); glVertex3f( 1.0f, 1.0f, 1.0f);    // Top Right Of The Texture and Quad
  glTexCoord2f(0.0f, 1.0f); glVertex3f(-1.0f, 1.0f, 1.0f);    // Top Left Of The Texture and Quad
  // Back Face
  glTexCoord2f(1.0f, 0.0f); glVertex3f(-1.0f, -1.0f, -1.0f);    // Bottom Right Of The Texture and Quad
  glTexCoord2f(1.0f, 1.0f); glVertex3f(-1.0f, 1.0f, -1.0f);    // Top Right Of The Texture and Quad
  glTexCoord2f(0.0f, 1.0f); glVertex3f( 1.0f, 1.0f, -1.0f);    // Top Left Of The Texture and Quad
  glTexCoord2f(0.0f, 0.0f); glVertex3f( 1.0f, -1.0f, -1.0f);    // Bottom Left Of The Texture and Quad
  // Top Face
  glTexCoord2f(0.0f, 1.0f); glVertex3f(-1.0f, 1.0f, -1.0f);    // Top Left Of The Texture and Quad
  glTexCoord2f(0.0f, 0.0f); glVertex3f(-1.0f, 1.0f, 1.0f);    // Bottom Left Of The Texture and Quad
  glTexCoord2f(1.0f, 0.0f); glVertex3f( 1.0f, 1.0f, 1.0f);    // Bottom Right Of The Texture and Quad
  glTexCoord2f(1.0f, 1.0f); glVertex3f( 1.0f, 1.0f, -1.0f);    // Top Right Of The Texture and Quad
  // Bottom Face
  glTexCoord2f(1.0f, 1.0f); glVertex3f(-1.0f, -1.0f, -1.0f);    // Top Right Of The Texture and Quad
  glTexCoord2f(0.0f, 1.0f); glVertex3f( 1.0f, -1.0f, -1.0f);    // Top Left Of The Texture and Quad
  glTexCoord2f(0.0f, 0.0f); glVertex3f( 1.0f, -1.0f, 1.0f);    // Bottom Left Of The Texture and Quad
  glTexCoord2f(1.0f, 0.0f); glVertex3f(-1.0f, -1.0f, 1.0f);    // Bottom Right Of The Texture and Quad
  // Right face
  glTexCoord2f(1.0f, 0.0f); glVertex3f( 1.0f, -1.0f, -1.0f);    // Bottom Right Of The Texture and Quad
  glTexCoord2f(1.0f, 1.0f); glVertex3f( 1.0f, 1.0f, -1.0f);    // Top Right Of The Texture and Quad
  glTexCoord2f(0.0f, 1.0f); glVertex3f( 1.0f, 1.0f, 1.0f);    // Top Left Of The Texture and Quad
  glTexCoord2f(0.0f, 0.0f); glVertex3f( 1.0f, -1.0f, 1.0f);    // Bottom Left Of The Texture and Quad
  // Left Face
  glTexCoord2f(0.0f, 0.0f); glVertex3f(-1.0f, -1.0f, -1.0f);    // Bottom Left Of The Texture and Quad
  glTexCoord2f(1.0f, 0.0f); glVertex3f(-1.0f, -1.0f, 1.0f);    // Bottom Right Of The Texture and Quad
  glTexCoord2f(1.0f, 1.0f); glVertex3f(-1.0f, 1.0f, 1.0f);    // Top Right Of The Texture and Quad
  glTexCoord2f(0.0f, 1.0f); glVertex3f(-1.0f, 1.0f, -1.0f);    // Top Left Of The Texture and Quad
        glEnd();

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