eleni@0: #include <GL/glew.h>
eleni@0: #include <GL/glut.h>
eleni@0: 
eleni@0: #include <stdio.h>
eleni@0: #include <assert.h>
eleni@0: 
eleni@0: //static void init(void);
eleni@0: static void display(void);
eleni@0: static void reshape(int x, int y);
eleni@0: static void keyboard(unsigned char key, int x, int y);
eleni@0: static void mouse(int button, int state, int x, int y);
eleni@0: static void motion(int x, int y);
eleni@0: 
eleni@0: static int win_xsz, win_ysz;
eleni@0: 
eleni@0: int main(int argc, char **argv)
eleni@0: {
eleni@0: 	glutInit(&argc, argv);
eleni@0: 	glutInitWindowSize(1280, 720);
eleni@0: 	glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE);
eleni@0: 
eleni@0: 	//TODO parse arguments
eleni@0: 
eleni@0: 	glutCreateWindow("My Colonoscopie OEO!");
eleni@0: 
eleni@0: 	glutDisplayFunc(display);
eleni@0: 	glutReshapeFunc(reshape);
eleni@0: 	glutKeyboardFunc(keyboard);
eleni@0: 	glutMouseFunc(mouse);
eleni@0: 	glutMotionFunc(motion);
eleni@0: 
eleni@0: 	glewInit();
eleni@0: 
eleni@0: 	//call init
eleni@0: 
eleni@0: 	glutMainLoop();
eleni@0: 	return 0;
eleni@0: }
eleni@0: 
eleni@0: int init(void)
eleni@0: {
eleni@0: 	//TODO
eleni@0: 	return 0;
eleni@0: }
eleni@0: 
eleni@0: void display(void)
eleni@0: {
eleni@0: 	//render
eleni@0: 
eleni@0: 	glutSwapBuffers();
eleni@0: 	assert(glGetError() == GL_NO_ERROR);
eleni@0: }
eleni@0: 
eleni@0: void reshape(int x, int y)
eleni@0: {
eleni@0: 	glViewport(0, 0, x, y);
eleni@0: 	if(x != win_xsz || y != win_ysz) {
eleni@0: 		//TODO raytex_needs_recalc = 1;
eleni@0: 		win_xsz = x;
eleni@0: 		win_ysz = y;
eleni@0: 	}
eleni@0: }
eleni@0: 
eleni@0: void keyboard(unsigned char key, int x, int y)
eleni@0: {
eleni@0: 	switch(key) {
eleni@0: 		case 27:
eleni@0: 			exit(0);
eleni@0: 		default:
eleni@0: 			break;
eleni@0: 	}
eleni@0: }
eleni@0: 
eleni@0: static int prev_x, prev_y;
eleni@0: void mouse(int bn, int state, int x, int y)
eleni@0: {
eleni@0: 	prev_x = x;
eleni@0: 	prev_y = y;
eleni@0: }
eleni@0: 
eleni@0: void motion(int x, int y)
eleni@0: {
eleni@0: 	int dx = x - prev_x;
eleni@0: 	int dy = y - prev_y;
eleni@0: 	prev_x = x;
eleni@0: 	prev_y = y;
eleni@0: }