-/* xscreensaver, Copyright (c) 1992-2006 Jamie Zawinski <jwz@jwz.org>
+/* xscreensaver, Copyright (c) 1992-2014 Jamie Zawinski <jwz@jwz.org>
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
struct state {
Display *dpy;
Window window;
+ XWindowAttributes xgwa;
+ Pixmap saved;
+ int saved_w, saved_h;
int sizex, sizey;
int delay;
+ int duration;
GC gc;
int mode;
- int iterations;
+ int random_p;
+ time_t start_time;
int fuzz_toggle;
const int *current_bias;
#define STRETCH 12
#define FUZZ 13
+static void
+decayscreen_load_image (struct state *st)
+{
+ XWindowAttributes xgwa;
+ XGetWindowAttributes (st->dpy, st->window, &xgwa);
+ st->sizex = xgwa.width;
+ st->sizey = xgwa.height;
+ if (st->img_loader) abort();
+
+ st->img_loader = load_image_async_simple (0, xgwa.screen, st->window,
+ st->window, 0, 0);
+}
+
static void *
decayscreen_init (Display *dpy, Window window)
{
struct state *st = (struct state *) calloc (1, sizeof(*st));
XGCValues gcv;
- XWindowAttributes xgwa;
long gcflags;
unsigned long bg;
char *s;
st->dpy = dpy;
st->window = window;
+ st->random_p = 0;
s = get_string_resource(st->dpy, "mode", "Mode");
if (s && !strcmp(s, "shuffle")) st->mode = SHUFFLE;
else {
if (s && *s && !!strcmp(s, "random"))
fprintf(stderr, "%s: unknown mode %s\n", progname, s);
+ st->random_p = 1;
st->mode = random() % (FUZZ+1);
}
st->delay = get_integer_resource (st->dpy, "delay", "Integer");
-
if (st->delay < 0) st->delay = 0;
- XGetWindowAttributes (st->dpy, st->window, &xgwa);
+ st->duration = get_integer_resource (st->dpy, "duration", "Seconds");
+ if (st->duration < 1) st->duration = 1;
+
+ XGetWindowAttributes (st->dpy, st->window, &st->xgwa);
gcv.function = GXcopy;
gcv.subwindow_mode = IncludeInferiors;
- bg = get_pixel_resource (st->dpy, xgwa.colormap, "background", "Background");
+ bg = get_pixel_resource (st->dpy, st->xgwa.colormap, "background", "Background");
gcv.foreground = bg;
gcflags = GCForeground | GCFunction;
- if (use_subwindow_mode_p(xgwa.screen, st->window)) /* see grabscreen.c */
+ if (use_subwindow_mode_p(st->xgwa.screen, st->window)) /* see grabscreen.c */
gcflags |= GCSubwindowMode;
st->gc = XCreateGC (st->dpy, st->window, gcflags, &gcv);
- st->sizex = xgwa.width;
- st->sizey = xgwa.height;
-
- if (st->mode == MELT || st->mode == STRETCH)
- st->iterations = 1; /* slow down for smoother melting */
-
- st->img_loader = load_image_async_simple (0, xgwa.screen, st->window,
- st->window, 0, 0);
+ st->start_time = time ((time_t) 0);
+ decayscreen_load_image (st);
return st;
}
st->img_loader = load_image_async_simple (st->img_loader,
0, 0, 0, 0, 0);
if (! st->img_loader) { /* just finished */
+
+ st->start_time = time ((time_t) 0);
+ if (st->random_p)
+ st->mode = random() % (FUZZ+1);
+
if (st->mode == MELT || st->mode == STRETCH)
/* make sure screen eventually turns background color */
XDrawLine (st->dpy, st->window, st->gc, 0, 0, st->sizex, 0);
+
+ if (!st->saved) {
+ st->saved = XCreatePixmap (st->dpy, st->window,
+ st->sizex, st->sizey,
+ st->xgwa.depth);
+ st->saved_w = st->sizex;
+ st->saved_h = st->sizey;
+ }
+ XCopyArea (st->dpy, st->window, st->saved, st->gc, 0, 0,
+ st->sizex, st->sizey, 0, 0);
}
return st->delay;
}
+ if (!st->img_loader &&
+ st->start_time + st->duration < time ((time_t) 0)) {
+ decayscreen_load_image (st);
+ }
+
switch (st->mode) {
case SHUFFLE: st->current_bias = no_bias; break;
case UP: st->current_bias = up_bias; break;
unsigned int w, unsigned int h)
{
struct state *st = (struct state *) closure;
+ XClearWindow (st->dpy, st->window);
+ XCopyArea (st->dpy, st->saved, st->window, st->gc,
+ 0, 0, st->saved_w, st->saved_h,
+ ((int)w - st->saved_w) / 2,
+ ((int)h - st->saved_h) / 2);
st->sizex = w;
st->sizey = h;
}
static Bool
decayscreen_event (Display *dpy, Window window, void *closure, XEvent *event)
{
+ struct state *st = (struct state *) closure;
+ if (screenhack_event_helper (dpy, window, event))
+ {
+ st->start_time = 0;
+ return True;
+ }
return False;
}
".background: Black",
".foreground: Yellow",
"*dontClearRoot: True",
+ "*fpsSolid: True",
#ifdef __sgi /* really, HAVE_READ_DISPLAY_EXTENSION */
"*visualID: Best",
"*delay: 10000",
"*mode: random",
+ "*duration: 120",
+#ifdef USE_IPHONE
+ "*ignoreRotation: True",
+ "*rotateImages: True",
+#endif
0
};
static XrmOptionDescRec decayscreen_options [] = {
{ "-delay", ".delay", XrmoptionSepArg, 0 },
{ "-mode", ".mode", XrmoptionSepArg, 0 },
+ { "-duration", ".duration", XrmoptionSepArg, 0 },
{ 0, 0, 0, 0 }
};