34 lines
648 B
C
34 lines
648 B
C
/*
|
|
* Draw random circles.
|
|
*/
|
|
#include <stdio.h>
|
|
#include <sys/gpanel.h>
|
|
|
|
int xsize, ysize;
|
|
|
|
int main()
|
|
{
|
|
char *devname = "/dev/tft0";
|
|
int x, y, r, 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);
|
|
|
|
srandom(time(0));
|
|
printf("Draw random circles.\n");
|
|
printf("Press ^C to stop.\n");
|
|
|
|
for (;;) {
|
|
x = random() % xsize;
|
|
y = random() % ysize;
|
|
r = random() % ysize;
|
|
color = random();
|
|
gpanel_circle(color, x, y, r);
|
|
}
|
|
return 0;
|
|
}
|