/*
 * (c) Copyright 1993, Silicon Graphics, Inc.
 * ALL RIGHTS RESERVED 
 * Permission to use, copy, modify, and distribute this software for 
 * any purpose and without fee is hereby granted, provided that the above
 * copyright notice appear in all copies and that both the copyright notice
 * and this permission notice appear in supporting documentation, and that 
 * the name of Silicon Graphics, Inc. not be used in advertising
 * or publicity pertaining to distribution of the software without specific,
 * written prior permission. 
 *
 * THE MATERIAL EMBODIED ON THIS SOFTWARE IS PROVIDED TO YOU "AS-IS"
 * AND WITHOUT WARRANTY OF ANY KIND, EXPRESS, IMPLIED OR OTHERWISE,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY OR
 * FITNESS FOR A PARTICULAR PURPOSE.  IN NO EVENT SHALL SILICON
 * GRAPHICS, INC.  BE LIABLE TO YOU OR ANYONE ELSE FOR ANY DIRECT,
 * SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY
 * KIND, OR ANY DAMAGES WHATSOEVER, INCLUDING WITHOUT LIMITATION,
 * LOSS OF PROFIT, LOSS OF USE, SAVINGS OR REVENUE, OR THE CLAIMS OF
 * THIRD PARTIES, WHETHER OR NOT SILICON GRAPHICS, INC.  HAS BEEN
 * ADVISED OF THE POSSIBILITY OF SUCH LOSS, HOWEVER CAUSED AND ON
 * ANY THEORY OF LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE
 * POSSESSION, USE OR PERFORMANCE OF THIS SOFTWARE.
 * 
 * US Government Users Restricted Rights 
 * Use, duplication, or disclosure by the Government is subject to
 * restrictions set forth in FAR 52.227.19(c)(2) or subparagraph
 * (c)(1)(ii) of the Rights in Technical Data and Computer Software
 * clause at DFARS 252.227-7013 and/or in similar or successor
 * clauses in the FAR or the DOD or NASA FAR Supplement.
 * Unpublished-- rights reserved under the copyright laws of the
 * United States.  Contractor/manufacturer is Silicon Graphics,
 * Inc., 2011 N.  Shoreline Blvd., Mountain View, CA 94039-7311.
 *
 * OpenGL(TM) is a trademark of Silicon Graphics, Inc.
 */
/*  texgen.c
 *  This program draws a texture mapped teapot with 
 *  automatically generated texture coordinates.  The
 *  texture is rendered as stripes on the teapot.
 */

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

#include <stdio.h>

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

#define  stripeImageWidth 32

static GLubyte stripeImage[3*stripeImageWidth];
static float anglex = 0.0F ;
static float angley = 0.0F ;

void makeStripeImage(void) {
  for(int j = 0; j < stripeImageWidth; j++) {
    stripeImage[3*j] =(j<=4) ? 255 : 0;
    stripeImage[3*j+1] =(j>4) ? 255 : 0;
    stripeImage[3*j+2] = 0; }
}

GLfloat sgenparams[] = {1.0,1.0,1.0,0.0};

void myinit(void) {
  glClearColor(0.0,0.0,0.0,0.0);
  makeStripeImage();
  glPixelStorei(GL_UNPACK_ALIGNMENT,1);
  glTexEnvf(GL_TEXTURE_ENV,GL_TEXTURE_ENV_MODE,GL_MODULATE);
  glTexParameterf(GL_TEXTURE_1D,GL_TEXTURE_WRAP_S,GL_REPEAT);
  glTexParameterf(GL_TEXTURE_1D,GL_TEXTURE_MAG_FILTER,GL_LINEAR);
  glTexParameterf(GL_TEXTURE_1D,GL_TEXTURE_MIN_FILTER,GL_LINEAR);
  glTexImage1D(GL_TEXTURE_1D,0,3,stripeImageWidth,0,GL_RGB,GL_UNSIGNED_BYTE,stripeImage);
  glTexGeni(GL_S,GL_TEXTURE_GEN_MODE,GL_OBJECT_LINEAR);
  glTexGenfv(GL_S,GL_OBJECT_PLANE,sgenparams);
  glEnable(GL_DEPTH_TEST);
  glDepthFunc(GL_LESS);
  glEnable(GL_TEXTURE_GEN_S);
  glEnable(GL_TEXTURE_1D);
  glEnable(GL_CULL_FACE);
  glEnable(GL_LIGHTING);
  glEnable(GL_LIGHT0);
  glEnable(GL_AUTO_NORMAL);
  glEnable(GL_NORMALIZE);
  glFrontFace(GL_CW);
  glCullFace(GL_BACK);
  glMaterialf(GL_FRONT,GL_SHININESS,64.0);
}

void display(void) {
  glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
  glPushMatrix();
  manipulateurSouris();
  manipulateurClavier();
  glRotatef(45.0F,0.0F,0.0F,1.0F);
  glutSolidTeapot(2.0);
  glPopMatrix();
  glFlush();
  glutSwapBuffers();
}

int main(int argc,char **argv) {
  glutInit(&argc,argv);
  glutInitDisplayMode(GLUT_RGBA|GLUT_DEPTH|GLUT_DOUBLE);
  glutInitWindowSize(300,300); 
  glutInitWindowPosition(50,50); 
  glutCreateWindow("Une texture sur un teapot"); 
  myinit(); 
  creationMenuBasique();
  setParametresOrthoBasique(-3.5,3.5,-3.5,3.5,-500.0,500.0);
  setManipulateurDistance(1.0F);
  glutReshapeFunc(reshapeOrthoBasique);
  glutKeyboardFunc(keyBasique);
  glutSpecialFunc(specialBasique);
  glutMotionFunc(motionBasique);
  glutMouseFunc(sourisBasique);
  glutDisplayFunc(display);
  glutMainLoop();
  return(0);
}