/* * Draw random rectangles. */ #include #include int xsize, ysize; int main() { char *devname = "/dev/tft0"; int x0, y0, x1, y1, color; if (gpanel_open(devname) < 0) { printf("Cannot open %s\n", devname); exit(-1); } gpanel_clear(0, &xsize, &ysize); printf("Screen size %u x %u.\n", xsize, ysize); srand(time(0)); printf("Draw random rectangles.\n"); printf("Press ^C to stop.\n"); for (;;) { x0 = rand() % xsize; y0 = rand() % ysize; x1 = rand() % xsize; y1 = rand() % ysize; color = rand() << 1; gpanel_rect(color, x0, y0, x1, y1); } return 0; }