--- rxvt-unicode/src/rxvtimg.C	2012/06/05 12:30:37	1.18
+++ rxvt-unicode/src/rxvtimg.C	2012/06/05 14:59:44	1.21
@@ -18,6 +18,38 @@
 }
 
 rxvt_img *
+rxvt_img::new_from_root (rxvt_screen *s)
+{
+  Display *dpy = s->display->dpy;
+  unsigned int root_pm_w, root_pm_h;
+  Pixmap root_pixmap = s->display->get_pixmap_property (s->display->xa[XA_XROOTPMAP_ID]);
+  if (root_pixmap == None)
+    root_pixmap = s->display->get_pixmap_property (s->display->xa[XA_ESETROOT_PMAP_ID]);
+
+  if (root_pixmap == None)
+    return 0;
+
+  Window wdummy;
+  int idummy;
+  unsigned int udummy;
+
+  if (!XGetGeometry (dpy, root_pixmap, &wdummy, &idummy, &idummy, &root_pm_w, &root_pm_h, &udummy, &udummy))
+    return 0;
+
+  rxvt_img *img = new rxvt_img (
+     s,
+     XRenderFindVisualFormat (dpy, DefaultVisual (dpy, s->display->screen)),
+     root_pm_w,
+     root_pm_h,
+     root_pixmap
+  );
+
+  img->shared = true;
+
+  return img;
+}
+
+rxvt_img *
 rxvt_img::new_from_file (rxvt_screen *s, const char *filename)
 {
   GError *err = 0;
@@ -312,15 +344,36 @@
 rxvt_img *
 rxvt_img::clone ()
 {
+  rxvt_img *img = new rxvt_img (s, format, w, h);
+
   GC gc = XCreateGC (s->display->dpy, pm, 0, 0);
-  Pixmap pm2 = XCreatePixmap (s->display->dpy, pm, w, h, format->depth);
-  XCopyArea (s->display->dpy, pm, pm2, gc, 0, 0, w, h, 0, 0);
+  XCopyArea (s->display->dpy, pm, img->pm, gc, 0, 0, w, h, 0, 0);
   XFreeGC (s->display->dpy, gc);
-  return new rxvt_img (s, format, w, h, pm2);
+
+  return img;
+}
+
+rxvt_img *
+rxvt_img::sub_rect (int x, int y, int width, int height, int repeat)
+{
+  rxvt_img *img = new rxvt_img (s, format, width, height);
+
+  Display *dpy = s->display->dpy;
+  XRenderPictureAttributes pa;
+  pa.repeat = repeat;
+  Picture src = XRenderCreatePicture (dpy,      pm,      format, CPRepeat, &pa);
+  Picture dst = XRenderCreatePicture (dpy, img->pm, img->format,        0,   0);
+
+  XRenderComposite (dpy, PictOpSrc, src, None, dst, x, y, 0, 0, 0, 0, width, height);
+
+  XRenderFreePicture (dpy, src);
+  XRenderFreePicture (dpy, dst);
+
+  return img;
 }
 
 rxvt_img *
-rxvt_img::transform (int new_width, int new_height, int repeat, double matrix[9])
+rxvt_img::transform (int new_width, int new_height, double matrix[9], int repeat)
 {
   rxvt_img *img = new rxvt_img (s, format, new_width, new_height);
 
@@ -355,11 +408,11 @@
     0,                      0, 1
   };
 
-  return transform (new_width, new_height, RepeatNormal, matrix);
+  return transform (new_width, new_height, matrix);
 }
 
 rxvt_img *
-rxvt_img::rotate (int new_width, int new_height, int repeat, int x, int y, double phi)
+rxvt_img::rotate (int new_width, int new_height, int x, int y, double phi, int repeat)
 {
   double s = sin (phi);
   double c = cos (phi);
@@ -370,7 +423,7 @@
     0,  0,                  1
   };
 
-  return transform (new_width, new_height, repeat, matrix);
+  return transform (new_width, new_height, matrix, repeat);
 }
 
 rxvt_img *