--- rxvt-unicode/src/rxvtimg.C	2012/07/14 08:26:56	1.103
+++ rxvt-unicode/src/rxvtimg.C	2014/05/22 18:54:33	1.107
@@ -8,7 +8,7 @@
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
+ * the Free Software Foundation; either version 3 of the License, or
  * (at your option) any later version.
  *
  * This program is distributed in the hope that it will be useful,
@@ -535,7 +535,7 @@
   Display *dpy = s->dpy;
   int size = max (rh, rv) * 2 + 1;
   nv *kernel = (nv *)malloc (size * sizeof (nv));
-  XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed));
+  XFixed *params = rxvt_temp_buf<XFixed> (size + 2);
   rxvt_img *img = new_empty ();
 
   XRenderPictureAttributes pa;
@@ -580,7 +580,6 @@
     }
 
   free (kernel);
-  free (params);
 
   XRenderFreePicture (dpy, src);
   XRenderFreePicture (dpy, dst);
@@ -599,9 +598,9 @@
   // why the hell does XRenderSetPictureTransform want a writable matrix :(
   // that keeps us from just static const'ing this matrix.
   XTransform h_double = {
-    0x8000, 0,     0,
-    0, 0x1000,     0,
-    0,     0, 0x1000
+    0x08000, 0,     0,
+    0, 0x10000,     0,
+    0,     0, 0x10000
   };
 
   XRenderSetPictureFilter (cc.dpy, cc.src, "nearest", 0, 0);
@@ -633,9 +632,9 @@
   };
 
   XTransform h_halve = {
-    0x2000, 0,      0,
-    0, 0x1000,      0,
-    0,      0, 0x1000
+    0x20000, 0,      0,
+    0, 0x10000,      0,
+    0,      0, 0x10000
   };
 
   XRenderSetPictureFilter (cc.dpy, cc2.src, "nearest", 0, 0);
@@ -917,6 +916,40 @@
 }
 
 rxvt_img *
+rxvt_img::shade (nv factor, rgba c)
+{
+  clamp_it (factor, -1., 1.);
+  factor++;
+
+  if (factor > 1)
+    {
+      c.r = c.r * (2 - factor);
+      c.g = c.g * (2 - factor);
+      c.b = c.b * (2 - factor);
+    }
+  else
+    {
+      c.r = c.r * factor;
+      c.g = c.g * factor;
+      c.b = c.b * factor;
+    }
+
+  rxvt_img *img = this->tint (c);
+
+  if (factor > 1)
+    {
+      c.a = 0xffff;
+      c.r =
+      c.g =
+      c.b = 0xffff * (factor - 1);
+
+      img->brightness (c.r, c.g, c.b, c.a);
+    }
+
+  return img;
+}
+
+rxvt_img *
 rxvt_img::filter (const char *name, int nparams, nv *params)
 {
   composer cc (this);