summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorPeter Hutterer <peter.hutterer@redhat.com>2008-11-14 15:27:19 +1000
committerPeter Hutterer <peter.hutterer@redhat.com>2008-11-25 09:21:45 +1000
commit7d3e595f93dcd3d334e766a9dea602c05affdbaf (patch)
treeae493806a1a4fc6cba9e25e5b70202c33800e4b3
parent6bdc963cdabb4a2e77de7f00a1d062aa2b873f9b (diff)
dix: Add EnterWindow, LeaveWindow, HasPointer auxiliary functions.
These replace the ENTER_LEAVE_SEMAPHORE_* macros. Unused currently. Signed-off-by: Peter Hutterer <peter.hutterer@redhat.com>
-rw-r--r--dix/enterleave.c50
1 files changed, 50 insertions, 0 deletions
diff --git a/dix/enterleave.c b/dix/enterleave.c
index 11929c6fe..57d1f1e09 100644
--- a/dix/enterleave.c
+++ b/dix/enterleave.c
@@ -34,6 +34,56 @@
#include "enterleave.h"
/**
+ * Return TRUE if @win has a pointer within its boundaries, excluding child
+ * window.
+ */
+static BOOL
+HasPointer(WindowPtr win)
+{
+ int i;
+
+ for (i = 0; i < sizeof(win->enterleave); i++)
+ if (win->enterleave[i])
+ return TRUE;
+
+ return FALSE;
+}
+
+static BOOL
+HasOtherPointer(WindowPtr win, DeviceIntPtr dev)
+{
+ int i;
+
+ for (i = 0; i < sizeof(win->enterleave); i++)
+ if (win->enterleave[i] &&
+ !(i == dev->id/8 && win->enterleave[i] == (1 << (dev->id % 8))))
+ {
+ return TRUE;
+ }
+
+ return FALSE;
+}
+
+/**
+ * Set the presence flag for @dev to mark that it is now in @win.
+ */
+static void
+EnterWindow(DeviceIntPtr dev, WindowPtr win, int mode)
+{
+ win->enterleave[dev->id/8] |= (1 << (dev->id % 8));
+}
+
+/**
+ * Unset the presence flag for @dev to mark that it is not in @win anymore.
+ */
+static void
+LeaveWindow(DeviceIntPtr dev, WindowPtr win, int mode)
+{
+ win->enterleave[dev->id/8] &= ~(1 << (dev->id % 8));
+}
+
+
+/**
* @return The window that is the first ancestor of both a and b.
*/
WindowPtr