+ int i, j;
+ unsigned char *fbptr = framebuf;
+
+ for(i=0; i<200; i++) {
+ for(j=0; j<320; j++) {
+ int r, b;
+ int idx = i + (rand() & 0x1f) - 16;
+ if(idx < 0) idx = 0;
+ if(idx > 199) idx = 199;
+
+ r = 255 * idx / 199;
+ b = 255 - r;
+ *fbptr++ = find_color(r, 0, b);
+ }
+ }