nuclear@2: #include <stdio.h>
nuclear@2: #include <stdlib.h>
nuclear@2: #include <time.h>
nuclear@2: #include <sys/time.h>
nuclear@2: 
nuclear@2: #ifndef __APPLE__
nuclear@2: #include <GL/glut.h>
nuclear@2: #else
nuclear@2: #include <GLUT/glut.h>
nuclear@2: #endif
nuclear@2: 
nuclear@2: #include "dsys2.h"
nuclear@2: 
nuclear@2: void disp(void);
nuclear@2: void draw_teapot(float sec);
nuclear@2: void reshape(int x, int y);
nuclear@2: void keyb(unsigned char key, int x, int y);
nuclear@2: unsigned int get_ticks(void);
nuclear@2: 
nuclear@2: struct dsys_demo *demo;
nuclear@2: 
nuclear@2: int main(int argc, char **argv)
nuclear@2: {
nuclear@2: 	float lpos[] = {-100, 100, 100, 1};
nuclear@2: 
nuclear@2: 	glutInit(&argc, argv);
nuclear@2: 	glutInitWindowSize(800, 600);
nuclear@2: 	glutInitDisplayMode(GLUT_RGB | GLUT_DEPTH | GLUT_DOUBLE);
nuclear@2: 	glutCreateWindow("foo");
nuclear@2: 
nuclear@2: 	glutDisplayFunc(disp);
nuclear@2: 	glutReshapeFunc(reshape);
nuclear@2: 	glutKeyboardFunc(keyb);
nuclear@2: 	glutIdleFunc(glutPostRedisplay);
nuclear@2: 
nuclear@2: 	glEnable(GL_LIGHTING);
nuclear@2: 	glEnable(GL_LIGHT0);
nuclear@2: 	glLightfv(GL_LIGHT0, GL_POSITION, lpos);
nuclear@2: 
nuclear@2: 	glEnable(GL_CULL_FACE);
nuclear@2: 	glEnable(GL_DEPTH_TEST);
nuclear@2: 
nuclear@2: 	if(!(demo = dsys_open("/dev/null"))) {
nuclear@2: 		return 1;
nuclear@2: 	}
nuclear@2: 
nuclear@2: 	glutMainLoop();
nuclear@2: 	return 0;
nuclear@2: }
nuclear@2: 
nuclear@2: 
nuclear@2: void disp(void)
nuclear@2: {
nuclear@2: 	float sec;
nuclear@2: 
nuclear@2: 	dsys_update(demo, dsys_msec_to_dtime(get_ticks()));
nuclear@2: 	sec = dsys_dtime_to_sec(dsys_time(demo));
nuclear@2: 
nuclear@2: 	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
nuclear@2: 
nuclear@2: 	glMatrixMode(GL_MODELVIEW);
nuclear@2: 	glLoadIdentity();
nuclear@2: 	glTranslatef(0, 0, -8);
nuclear@2: 	glRotatef(30.0, 1, 0, 0);
nuclear@2: 
nuclear@2: 	draw_teapot(sec);
nuclear@2: 
nuclear@2: 	glutSwapBuffers();
nuclear@2: }
nuclear@2: 
nuclear@2: void draw_teapot(float sec)
nuclear@2: {
nuclear@2: 	float dcol[] = {0.2, 0.4, 0.8, 1.0};
nuclear@2: 	float scol[] = {0.8, 0.8, 0.8, 1.0};
nuclear@2: 
nuclear@2: 	glPushMatrix();
nuclear@2: 	glRotatef(sec * 100.0, 0, 1, 0);
nuclear@2: 
nuclear@2: 	glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, dcol);
nuclear@2: 	glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, scol);
nuclear@2: 	glMaterialf(GL_FRONT_AND_BACK, GL_SHININESS, 60.0);
nuclear@2: 
nuclear@2: 	glFrontFace(GL_CW);
nuclear@2: 	glutSolidTeapot(1.0);
nuclear@2: 	glFrontFace(GL_CCW);
nuclear@2: 
nuclear@2: 	glPopMatrix();
nuclear@2: }
nuclear@2: 
nuclear@2: void reshape(int x, int y)
nuclear@2: {
nuclear@2: 	glViewport(0, 0, x, y);
nuclear@2: 
nuclear@2: 	glMatrixMode(GL_PROJECTION);
nuclear@2: 	glLoadIdentity();
nuclear@2: 	gluPerspective(45.0, (float)x / (float)y, 1.0, 1000.0);
nuclear@2: }
nuclear@2: 
nuclear@2: void keyb(unsigned char key, int x, int y)
nuclear@2: {
nuclear@2: 	switch(key) {
nuclear@2: 	case 27:
nuclear@2: 		exit(0);
nuclear@2: 
nuclear@2: 	case ' ':
nuclear@2: 		if(dsys_is_running(demo)) {
nuclear@2: 			dsys_stop(demo);
nuclear@2: 		} else {
nuclear@2: 			dsys_start(demo);
nuclear@2: 		}
nuclear@2: 		break;
nuclear@2: 
nuclear@2: 	default:
nuclear@2: 		break;
nuclear@2: 	}
nuclear@2: }
nuclear@2: 
nuclear@2: unsigned int get_ticks(void)
nuclear@2: {
nuclear@2: 	static struct timeval tv0;
nuclear@2: 	struct timeval tv;
nuclear@2: 
nuclear@2: 	gettimeofday(&tv, 0);
nuclear@2: 
nuclear@2: 	if(tv0.tv_sec == 0 && tv0.tv_usec == 0) {
nuclear@2: 		tv0 = tv;
nuclear@2: 	}
nuclear@2: 	return (tv.tv_sec - tv0.tv_sec) * 1000 + (tv.tv_usec - tv0.tv_usec) / 1000;
nuclear@2: }