commit 332d62ba108ff5d33ae1007f16eb3e2a94efd839
author Alexandre Julliard <julliard@winehq.org> Fri May 31 19:14:40 2002 +0000
committer Alexandre Julliard <julliard@winehq.org> Fri May 31 19:14:40 2002 +0000
tree d42cc03c330590691365620ea6d45164c0a4568b
parent d8a9244fc49a13f5c8dc0f3ba49d80b983737a51

Avoid division by zero (thanks to David Ronis).

dlls/x11drv/mouse.c

diff --git a/dlls/x11drv/mouse.c b/dlls/x11drv/mouse.c
index b4db4b2..76d6dfd 100644
--- a/dlls/x11drv/mouse.c
+++ b/dlls/x11drv/mouse.c
@@ -301,13 +301,21 @@
             rscale = 1 << (16 - rbits);
             gscale = 1 << (16 - gbits);
             bscale = 1 << (16 - bbits);
-            fg.red   = rfg * rscale / fgBits;
-            fg.green = gfg * gscale / fgBits;
-            fg.blue  = bfg * bscale / fgBits;
+            if (fgBits)
+            {
+                fg.red   = rfg * rscale / fgBits;
+                fg.green = gfg * gscale / fgBits;
+                fg.blue  = bfg * bscale / fgBits;
+            }
+            else fg.red = fg.green = fg.blue = 0;
             bgBits = xmax * ymax - fgBits;
-            bg.red   = rbg * rscale / bgBits;
-            bg.green = gbg * gscale / bgBits;
-            bg.blue  = bbg * bscale / bgBits;
+            if (bgBits)
+            {
+                bg.red   = rbg * rscale / bgBits;
+                bg.green = gbg * gscale / bgBits;
+                bg.blue  = bbg * bscale / bgBits;
+            }
+            else bg.red = bg.green = bg.blue = 0;
             pixmapBits = XCreateBitmapFromData( display, root_window, pXorBits, xmax, ymax );
             if (!pixmapBits)
             {