/* Auteur: Nicolas JANEY */
/* nicolas.janey@univ-fcomte.fr */
/* Avril 2001 */
/* Illustration de la lecture */
/* et de la sauvegarde d'une portion */
/* d'une fenetre en OpenGL */
#include <stdio.h>
#include <stdlib.h>
#include <GL/glut.h>
#include <GL/gl.h>
#include <GL/glu.h>
#include "ModuleCouleurs.h"
#include "ModuleManipulateur.h"
#include "ModuleMenus.h"
#include "ModuleReshape.h"
void myinit(void) {
GLfloat shinines[] = { 50.0F };
GLfloat l_pos[] = { 1.0F,1.0F,1.0F,0.0F };
glClearColor(0.5F,0.5F,1.0F,1.0F) ;
glMaterialfv(GL_FRONT,GL_SPECULAR,couleurBlanc());
glMaterialfv(GL_FRONT,GL_SHININESS,shinines);
glLightfv(GL_LIGHT0,GL_POSITION,l_pos);
glEnable(GL_LIGHTING);
glEnable(GL_LIGHT0);
glDepthFunc(GL_LESS);
glEnable(GL_DEPTH_TEST);
glEnable(GL_AUTO_NORMAL);
glEnable(GL_NORMALIZE);
}
void display(void) {
glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
glPushMatrix();
manipulateurSouris();
manipulateurClavier();
glutSolidTorus(0.3,1.0,36,36);
glPopMatrix();
glFlush();
glutSwapBuffers();
}
void sauve(char *nom,int px,int py,int dx,int dy) {
GLubyte *image ;
FILE *num ;
int y,x ;
image =(GLubyte *) calloc(dx*dy*3,sizeof(GLubyte));
glReadPixels(px,py,dx,dy,GL_RGB,GL_UNSIGNED_BYTE,image);
num = fopen(nom,"wb") ;
if ( num ) {
for ( y = dy-1 ; y >= 0 ; y-- ) {
for ( x = 0 ; x < dx ; x++ ) {
fwrite((void *) &image[(y*dx+x)*3],sizeof(GLubyte),3,num) ; } }
fclose(num) ; }
free(image) ;
}
void key(unsigned char key,int x,int y) {
if ( keyManipulateur(key,x,y) )
glutPostRedisplay();
else
switch ( key ) {
case 's' :
case 'S' : sauve("image.raw",0,0,glutGet(GLUT_WINDOW_WIDTH),glutGet(GLUT_WINDOW_HEIGHT)) ;
break; }
}
int main(int argc,char **argv) {
glutInit(&argc,argv);
glutInitDisplayMode(GLUT_RGBA|GLUT_DEPTH|GLUT_DOUBLE);
glutInitWindowSize(256,256);
glutInitWindowPosition(50,50);
glutCreateWindow("Tore blanc: Sauvegarde image");
myinit();
creationMenuBasique();
setParametresOrthoBasique(-1.5,1.5,-1.5,1.5,-500.0,500.0);
setManipulateurDistance(1.0F);
glutReshapeFunc(reshapeOrthoBasique);
glutKeyboardFunc(key);
glutSpecialFunc(specialBasique);
glutMotionFunc(motionBasique);
glutMouseFunc(sourisBasique);
glutDisplayFunc(display);
glutMainLoop();
return(0);
}
RETOUR