override redirect, obey ximage rgb masks, restore completion event

[retrobench] / src / util.c

diff --git a/src/util.c b/src/util.c
new file mode 100644 (file)
index 0000000..82a8bfc
--- /dev/null
+++ b/src/util.c
@@ -0,0 +1,13 @@
+#include "util.h"
+
+int mask_to_shift(unsigned int mask)
+{
+       int s = 0;
+       if(mask) {
+               while(!(mask & 1)) {
+                       mask >>= 1;
+                       s++;
+               }
+       }
+       return s;
+}