From http://www.jwz.org/xscreensaver/xscreensaver-5.39.tar.gz

[xscreensaver] / hacks / bouboule.c

diff --git a/hacks/bouboule.c b/hacks/bouboule.c
index 7923ce87bc15f5e22863153662c3158d0b2b57cb..1ac0425f447cdd0a3ee453834077a3a14cd0c75a 100644 (file)
--- a/hacks/bouboule.c
+++ b/hacks/bouboule.c
@@ -316,6 +316,8 @@ init_bouboule(ModeInfo * mi)
        int         i;
        double      theta, omega;
 
+    if (MI_WIDTH(mi) > 2560) size *= 2;  /* Retina displays */
+
        MI_INIT (mi, starfield);
        sp = &starfield[MI_SCREEN(mi)];