/* Auteur: Nicolas JANEY         */
/* nicolas.janey@univ-fcomte.fr  */
/* Avril 2002                    */
/* Texturage d'un quadrilatere   */

#include <GL/glut.h>
#include <GL/gl.h>
#include <GL/glu.h>

#include "ModuleManipulateur.h"
#include "ModuleMenus.h"
#include "ModuleReshape.h"

#define LI 16 
#define LH 16 
GLubyte image[LI][LH][3]; 
  
void makeImage(void) { 
  int i,j,c; 
  for( i = 0 ; i < LI ; i++ ) { 
    for( j = 0 ; j < LH ; j++ ) { 
      c =(j%2)+(i%2)*2;
      switch (c) {
        case 0 : image[i][j][0] =(GLubyte) 255; 
                 image[i][j][1] =(GLubyte) 255; 
                 image[i][j][2] =(GLubyte) 255;
                 break;
        case 1 : image[i][j][0] =(GLubyte) 255; 
                 image[i][j][1] =(GLubyte) 0; 
                 image[i][j][2] =(GLubyte) 0;
                 break;
        case 2 : image[i][j][0] =(GLubyte) 0; 
                 image[i][j][1] =(GLubyte) 255; 
                 image[i][j][2] =(GLubyte) 0;
                 break;
        case 3 : image[i][j][0] =(GLubyte) 0; 
                 image[i][j][1] =(GLubyte) 0; 
                 image[i][j][2] =(GLubyte) 255;
                 break; } } }
} 
  
void myinit(void) { 
  glClearColor(0.0,0.0,0.0,0.0); 
  glEnable(GL_DEPTH_TEST); 
  glDepthFunc(GL_LESS); 
  makeImage(); 
  glPixelStorei(GL_UNPACK_ALIGNMENT,1); 
  glTexImage2D(GL_TEXTURE_2D,0,3,LI,LH,0,GL_RGB,GL_UNSIGNED_BYTE,&image[0][0][0]); 
  glTexParameterf(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_NEAREST); 
  glTexParameterf(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_NEAREST); 
  glEnable(GL_TEXTURE_2D); 
  glShadeModel(GL_FLAT); 
  glEnable(GL_AUTO_NORMAL);
  glEnable(GL_NORMALIZE);
} 
  
void display(void) { 
  glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT); 
  glPushMatrix();
  manipulateurSouris();
  manipulateurClavier();
  glBegin(GL_QUADS); 
  glTexCoord2f(0.0F,4.0F); 
  glVertex3f(-0.5F,-0.5F,0.0F); 
  glTexCoord2f(0.0F,0.0F); 
  glVertex3f(-0.5F,0.5F,0.0F); 
  glTexCoord2f(4.0F,0.0F); 
  glVertex3f(0.5F,0.5F,0.0F); 
  glTexCoord2f(4.0F,4.0F); 
  glVertex3f(0.5F,-0.5F,0.0F); 
  glEnd(); 
  glPopMatrix();
  glFlush(); 
  glutSwapBuffers();
} 
  
int main(int argc,char **argv) {
  glutInit(&argc,argv);
  glutInitDisplayMode(GLUT_RGBA|GLUT_DEPTH|GLUT_DOUBLE);
  glutInitWindowSize(200,200); 
  glutInitWindowPosition(50,50); 
  glutCreateWindow("Un damier"); 
  myinit(); 
  creationMenuBasique();
  setParametresOrthoBasique(-0.75,0.75,-0.75,0.75,-5.0,5.0);
  setManipulateurDistance(1.0F);
  glutReshapeFunc(reshapeOrthoBasique);
  glutKeyboardFunc(keyBasique);
  glutSpecialFunc(specialBasique);
  glutMotionFunc(motionBasique);
  glutMouseFunc(sourisBasique);
  glutDisplayFunc(display);
  glutMainLoop();
  return(0);
}