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From http://www.jwz.org/xscreensaver/xscreensaver-5.39.tar.gz
[xscreensaver]
/
hacks
/
spotlight.c
diff --git
a/hacks/spotlight.c
b/hacks/spotlight.c
index 7224ee855406918ed1e49c1b6a0a6cd09e364d24..73858991a749dbe77600370d4c088f185a0a8d8e 100644
(file)
--- a/
hacks/spotlight.c
+++ b/
hacks/spotlight.c
@@
-25,8
+25,6
@@
#include <limits.h>
#include "screenhack.h"
#include <limits.h>
#include "screenhack.h"
-#define MINX 0.0
-#define MINY 0.0
#define X_PERIOD 15000.0
#define Y_PERIOD 12000.0
#define X_PERIOD 15000.0
#define Y_PERIOD 12000.0
@@
-65,6
+63,7
@@
struct state {
Bool first_p;
async_load_state *img_loader;
Bool first_p;
async_load_state *img_loader;
+ XRectangle geom;
};
};
@@
-117,6
+116,8
@@
spotlight_init (Display *dpy, Window window)
st->radius = get_integer_resource (st->dpy, "radius", "Integer");
if (st->radius < 0) st->radius = 125;
st->radius = get_integer_resource (st->dpy, "radius", "Integer");
if (st->radius < 0) st->radius = 125;
+ if (xgwa.width > 2560) st->radius *= 2; /* Retina displays */
+
/* Don't let the spotlight be bigger than the window */
while (st->radius > xgwa.width * 0.45)
st->radius /= 2;
/* Don't let the spotlight be bigger than the window */
while (st->radius > xgwa.width * 0.45)
st->radius /= 2;
@@
-157,7
+158,7
@@
spotlight_init (Display *dpy, Window window)
/* create clip mask (so it's a circle, not a square) */
clip_pm = XCreatePixmap(st->dpy, st->window, st->radius*4, st->radius*4, 1);
st->img_loader = load_image_async_simple (0, xgwa.screen, st->window, st->pm,
/* create clip mask (so it's a circle, not a square) */
clip_pm = XCreatePixmap(st->dpy, st->window, st->radius*4, st->radius*4, 1);
st->img_loader = load_image_async_simple (0, xgwa.screen, st->window, st->pm,
- 0,
0
);
+ 0,
&st->geom
);
st->start_time = time ((time_t *) 0);
gcv.foreground = 0L;
st->start_time = time ((time_t *) 0);
gcv.foreground = 0L;
@@
-198,7
+199,8
@@
onestep (struct state *st, Bool first_p)
if (st->img_loader) /* still loading */
{
if (st->img_loader) /* still loading */
{
- st->img_loader = load_image_async_simple (st->img_loader, 0, 0, 0, 0, 0);
+ st->img_loader = load_image_async_simple (st->img_loader, 0, 0, 0, 0,
+ &st->geom);
if (! st->img_loader) { /* just finished */
st->start_time = time ((time_t *) 0);
}
if (! st->img_loader) { /* just finished */
st->start_time = time ((time_t *) 0);
}
@@
-208,7
+210,7
@@
onestep (struct state *st, Bool first_p)
if (!st->img_loader &&
st->start_time + st->duration < time ((time_t *) 0)) {
st->img_loader = load_image_async_simple (0, st->screen, st->window,
if (!st->img_loader &&
st->start_time + st->duration < time ((time_t *) 0)) {
st->img_loader = load_image_async_simple (0, st->screen, st->window,
- st->pm, 0,
0
);
+ st->pm, 0,
&st->geom
);
return;
}
return;
}
@@
-223,10
+225,12
@@
onestep (struct state *st, Bool first_p)
now = (now_unsigned <= LONG_MAX) ? now_unsigned : -1 - (long)(ULONG_MAX - now_unsigned);
/* find new x,y */
now = (now_unsigned <= LONG_MAX) ? now_unsigned : -1 - (long)(ULONG_MAX - now_unsigned);
/* find new x,y */
- st->x = ((1 + sin(((double)now) / X_PERIOD * 2. * M_PI))/2.0)
- * (st->sizex - st->s/2) -st->s/4 + MINX;
- st->y = ((1 + sin(((double)now) / Y_PERIOD * 2. * M_PI))/2.0)
- * (st->sizey - st->s/2) -st->s/4 + MINY;
+ st->x = st->geom.x +
+ ((1 + sin(((double)now) / X_PERIOD * 2. * M_PI))/2.0)
+ * (st->geom.width - st->s/2) -st->s/4;
+ st->y = st->geom.y +
+ ((1 + sin(((double)now) / Y_PERIOD * 2. * M_PI))/2.0)
+ * (st->geom.height - st->s/2) -st->s/4;
if (!st->first_p)
{
if (!st->first_p)
{
@@
-261,6
+265,13
@@
onestep (struct state *st, Bool first_p)
/* copy buffer to screen (window) */
XCopyArea(st->dpy, st->buffer, st->window, st->window_gc, st->x , st->y, st->s, st->s, st->x, st->y);
/* copy buffer to screen (window) */
XCopyArea(st->dpy, st->buffer, st->window, st->window_gc, st->x , st->y, st->s, st->s, st->x, st->y);
+
+# if 0
+ XSetForeground (st->dpy, st->window_gc,
+ WhitePixel (st->dpy, DefaultScreen (st->dpy)));
+ XDrawRectangle(st->dpy, st->window, st->window_gc,
+ st->geom.x, st->geom.y, st->geom.width, st->geom.height);
+# endif
}
#ifdef DEBUG
}
#ifdef DEBUG