1 files changed, 6 insertions, 5 deletions
diff --git a/src/compositor/compositor-xrender.c b/src/compositor/compositor-xrender.c
index c90cdd4a..37440a79 100644
--- a/src/compositor/compositor-xrender.c
+++ b/src/compositor/compositor-xrender.c
@@ -30,6 +30,7 @@
 
 #include <stdlib.h>
 #include <string.h>
+#include <limits.h>
 #include <math.h>
 #include <unistd.h>
 
@@ -833,10 +834,10 @@ solid_picture (MetaDisplay *display,
 return None;
 }
 
- c.alpha = (unsigned short)(a * 0xffff);
- c.red = (unsigned short)(r * 0xffff);
- c.green = (unsigned short)(g * 0xffff);
- c.blue = (unsigned short)(b * 0xffff);
+ c.alpha = (unsigned short)(a * USHRT_MAX);
+ c.red = (unsigned short)(r * USHRT_MAX);
+ c.green = (unsigned short)(g * USHRT_MAX);
+ c.blue = (unsigned short)(b * USHRT_MAX);
 
 XRenderFillRectangle (xdisplay, PictOpSrc, picture, &c, 0, 0, 1, 1);
 XFreePixmap (xdisplay, pixmap);
@@ -912,7 +913,7 @@ root_tile (MetaScreen *screen)
 c.red = 0x0000;
 c.green = 0x0000;
 c.blue = 0x0000;
- c.alpha = 0xffff;
+ c.alpha = USHRT_MAX;
 
 XRenderFillRectangle (xdisplay, PictOpSrc, picture, &c, 0, 0, 1, 1);
 XFreePixmap (xdisplay, pixmap);