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From http://www.jwz.org/xscreensaver/xscreensaver-5.40.tar.gz
[xscreensaver]
/
hacks
/
interference.c
diff --git
a/hacks/interference.c
b/hacks/interference.c
index cbb6fae9f09fec5388927d8b6f62563c63f43178..78601439d9743fa1271803e2be963c8dba81bf6f 100644
(file)
--- a/
hacks/interference.c
+++ b/
hacks/interference.c
@@
-696,6
+696,7
@@
static void inter_init(Display* dpy, Window win, struct inter_context* c)
int mono;
int gray;
int radius;
int mono;
int gray;
int radius;
+ double scale = 1;
XGCValues val;
Bool dbuf = get_boolean_resource (dpy, "doubleBuffer", "Boolean");
XGCValues val;
Bool dbuf = get_boolean_resource (dpy, "doubleBuffer", "Boolean");
@@
-749,6
+750,9
@@
static void inter_init(Display* dpy, Window win, struct inter_context* c)
if(radius < 1)
radius = 1;
if(radius < 1)
radius = 1;
+ if (xgwa.width > 2560) scale = 3.5; /* Retina displays */
+ radius *= scale;
+
create_image(dpy, c, &xgwa);
if(!mono) {
create_image(dpy, c, &xgwa);
if(!mono) {
@@
-843,7
+847,7
@@
static void inter_init(Display* dpy, Window win, struct inter_context* c)
((float)radius);
c->wave_height[i] =
(unsigned)
((float)radius);
c->wave_height[i] =
(unsigned)
- ((max + max*cos(fi/
50.0
)) / 2.0);
+ ((max + max*cos(fi/
(50.0 * scale)
)) / 2.0);
}
c->source = calloc(c->count, sizeof(struct inter_source));
}
c->source = calloc(c->count, sizeof(struct inter_source));