#define GL_GLEXT_PROTOTYPES
#include <GL/gl.h>
#include <GL/glu.h>
#include <GL/glut.h>
#include <stdlib.h>
#include <stdio.h>

void init(void)
{
	GLfloat s, o;

	glPolygonOffsetEXT(1.0, 2.0);

	glEnable(GL_POLYGON_OFFSET_EXT);
	glGetFloatv(GL_POLYGON_OFFSET_FACTOR_EXT, &s);
	glGetFloatv(GL_POLYGON_OFFSET_BIAS_EXT, &o);
	printf("factor=%g bias=%g\n", s, o);
}


int main(int argc, char** argv)
{
	glutInit(&argc, argv);
	glutInitDisplayMode(GLUT_SINGLE | GLUT_RGB | GLUT_DEPTH);
	glutInitWindowSize (500, 500);
	glutInitWindowPosition (100, 100);
	glutCreateWindow(argv[0]);
	init();
	return 0;
}