#include <GL/glut.h>
#include <stdio.h>
#include<math.h>
#include<inrimage/image.h>
#include<assert.h>


float rota=0.2;



static char version[]="1.00";
static char usage[]="[input][output][-sb seuil]";
static char detail[]="";




static void keyboard(unsigned char k,int x,int y){
switch(k){
case 'q':
case 'Q':
case 27:
glutLeaveMainLoop();
break;
case 'd' : x_b-=0.2;
break;
case 'm' : x_b+=0.2;
break;
}
}




static init(){
glClearColor(0.0,0.0,0.0,0.0);
}


static void reshape(int width,int height){
glViewport(0,0,(GLint) width,(GLint) height);
glMatrixMode(GL_PROJECTION); glLoadIdentity();
gluOrtho2D(-1,10,-1,10);
glMatrixMode(GL_MODELVIEW);glLoadIdentity();
}





/* fonction qui renvoie le nombre de lignes de l'image */


int lignes(unsigned char *image, Fort_int lfmt[9]){
return NDIMY;
}

/* fonction qui renvoie le nombre de colonnes de l'image */


int colonnes(unsigned char *image, Fort_int lfmt[9]){
return NDIMX;
}



void tracer_point(unsigned char *im,Fort_int lfmt[9]){
int i,j;



for(i=0;i<lfmt[I_DIMY];i++){
for(j=0;j<lfmt[I_DIMX];j++){
printf(" %d",im[i*DIMX + j]);

}
}

}



void repere(unsigned char *image,Fort_int lfmt[9]){



int x,y;


x=lfmt[I_NDIMX];
y=lfmt[I_NDIMY];


glBegin(GL_LINES);
glColor3f(1.0,0.0,0.0);
glVertex3f(0,0,0);
glVertex3f(x+20,0,0);
glEnd();

glBegin(GL_LINES);
glColor3f(0.0,1.0,0.0);
glVertex3f(0,0,0);
glVertex3f(0,y+20,0);
glEnd();

glBegin(GL_LINES);
glColor3f(0.0,0.0,1.0);
glVertex3f(0,0,0);
glVertex3f(0,0,276);
glEnd();

}


void tracer_point2(unsigned char *image,Fort_int lfmt[9]){
int i,j;
int k;
glBegin(GL_POINTS);

for(i=0;i<lfmt[I_DIMY];i++){
for(j=0;j<lfmt[I_DIMX];j++){
k=image[i*lfmt[I_DIMX] + j];
glVertex3i(i,j,k);

}
}
glEnd();
}



static void display(void){
unsigned char *image;
Fort_int lfmt[9];
glClear(GL_COLOR_BUFFER_BIT);
// glRotatef(rota,1.0,1.0,0.0);
// tracer_point2(image,lfmt);
repere(image,lfmt);
glFlush();
glutPostRedisplay();





}








int main(int argc,char **argv){

char fname[256];
struct image*nf;
Fort_int lfmt[9];
unsigned char *buf;



inr_init(argc,argv,version,usage,detail);



infileopt(fname);


nf=image_(fname,"e","",lfmt);




buf=(unsigned char *)i_malloc(lfmt[I_NDIMX]*lfmt[I_NDIMY]*sizeof(unsigned char));

c_lect(nf,lfmt[I_NDIMY],buf);
fermnf_(&nf);

// tracer_point(buf,lfmt);



glutInit(&argc,argv);
glutInitDisplayMode(GLUT_RGBA|GLUT_SINGLE);
glutCreateWindow("TME 7 : repere");
glutDisplayFunc(display);


glutReshapeFunc(reshape);

init();
glutMainLoop();







/*
outfileopt(fname);
nf= image_(fname, "c","",lfmt);

c_ecr(nf,lfmt[I_NDIMY],buf);
fermnf_(&nf);
*/
i_Free(&buf);
return 0;
}