From http://www.jwz.org/xscreensaver/xscreensaver-5.35.tar.gz

[xscreensaver] / hacks / abstractile.c

diff --git a/hacks/abstractile.c b/hacks/abstractile.c
index aaac029e8b098c82b7cd0c042148f4200284788e..b4394f14ec257f1c965a72466ad4bec1eccb4128 100644 (file)
--- a/hacks/abstractile.c
+++ b/hacks/abstractile.c
@@ -18,8 +18,6 @@
 #include <sys/time.h>
 /*#include <sys/utsname.h>*/
 
-#define DEBUGFILE       "/tmp/abstractile.dbg"
-
 #define MODE_CREATE            0   /* init, create, then finish sleep */
 #define MODE_ERASE             1   /* erase, then reset colors */
 #define MODE_DRAW              2
@@ -92,7 +90,8 @@ struct state {
     /* draw, erase, fill, init, line, object, z indexes */
   unsigned int di, ei, fi, ii, bi, li, eli, oi, zi;
   /* size variables */
-  unsigned int gridx, gridy, gridn;                     /* grid size */
+  int gridx, gridy;                     /* grid size */
+  unsigned int gridn;
   int lwid, bwid, swid;/* line width, background width, shadow width */
   int narray, max_wxh;
   int elwid, elpu, egridx, egridy; /* for now */
@@ -207,6 +206,7 @@ _init_zlist(struct state *st)
 
   st->gridx=st->xgwa.width/st->lwid;
   st->gridy=st->xgwa.height/st->lwid;
+  if ((st->gridx <= 0) || (st->gridy <= 0)) abort();
   st->gridn=st->gridx*st->gridy;
   /* clear grid */
   for (z=0; z<st->gridn; z++) {
@@ -916,6 +916,7 @@ _getcolor(struct state *st, int x, int y)
 {
   int n, cv[LAYERS];
 
+  cv[0] = 0;
   for (n=0; n<st->layers; n++) {
     cv[n]=_pattern(st,x,y,n);
                   /* first wave/shape */
@@ -1079,8 +1080,13 @@ _newline(struct state *st)
     True : False;
   st->dline[st->li].obj = (lt==LINE_NEW) ? st->oi :
     st->dline[bl].obj;
-  st->dline[st->li].color = (lt==LINE_NEW) ?
-    (_getcolor(st,x,y))%st->ncolors : st->dline[bl].color;
+  if (lt==LINE_NEW) {
+    int color =  (_getcolor(st,x,y))%st->ncolors;
+    if (color < 0) color += st->ncolors;
+    st->dline[st->li].color = color;
+  } else {
+    st->dline[st->li].color = st->dline[bl].color;
+  }
   st->dline[st->li].deo=(_getdeo(st,x,y,st->dmap,1) +
     (random()%st->dvar) + (random()%st->dvar))*st->ddir;
   st->dline[st->li].ndol=0;
@@ -1559,6 +1565,13 @@ abstractile_reshape (Display *dpy, Window window, void *closure,
 static Bool
 abstractile_event (Display *dpy, Window window, void *closure, XEvent *event)
 {
+  struct state *st = (struct state *) closure;
+  if (screenhack_event_helper (dpy, window, event))
+    {
+      st->mode=MODE_CREATE;
+      return True;
+    }
+
   return False;
 }
 
@@ -1576,6 +1589,9 @@ static const char *abstractile_defaults [] = {
   "*sleep:             3",
   "*speed:             3",
   "*tile:         random",
+#ifdef HAVE_MOBILE
+  "*ignoreRotation: True",
+#endif
   0
 };