Add support for pointer barrier events

Signed-off-by: Jasper St. Pierre <jstpierre@mecheye.net>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>

1 files changed, 81 insertions, 0 deletions

diff --git a/src/XIBarrier.c b/src/XIBarrier.c
new file mode 100644
index 0000000..155b98b
--- /dev/null
+++ b/src/XIBarrier.c
@@ -0,0 +1,81 @@
+/*
+ * Copyright © 2009 Red Hat, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ */
+
+#if HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <stdint.h>
+#include <X11/Xlibint.h>
+#include <X11/extensions/XI2proto.h>
+#include <X11/extensions/XInput2.h>
+#include <X11/extensions/extutil.h>
+#include "XIint.h"
+
+void
+XIBarrierReleasePointers(Display *dpy,
+                         XIBarrierReleasePointerInfo *barriers,
+                         int num_barriers)
+{
+    XExtDisplayInfo	        *info = XInput_find_display(dpy);
+    xXIBarrierReleasePointerReq *req;
+    int extra = 0;
+    int i;
+    xXIBarrierReleasePointerInfo *b;
+
+    if (!num_barriers)
+        return;
+
+    extra = (num_barriers * sizeof(xXIBarrierReleasePointerInfo));
+
+    LockDisplay (dpy);
+    GetReqExtra (XIBarrierReleasePointer, extra, req);
+    req->reqType = info->codes->major_opcode;
+    req->ReqType = X_XIBarrierReleasePointer;
+    req->num_barriers = num_barriers;
+
+    b = (xXIBarrierReleasePointerInfo *) &req[1];
+    for (i = 0; i < num_barriers; i++, b++) {
+        b->deviceid = barriers[i].deviceid;
+        b->eventid = barriers[i].eventid;
+        b->barrier = barriers[i].barrier;
+    }
+
+    UnlockDisplay (dpy);
+    SyncHandle ();
+}
+
+void
+XIBarrierReleasePointer(Display *dpy,
+                        int            deviceid,
+                        PointerBarrier barrier,
+                        BarrierEventID eventid)
+{
+    XIBarrierReleasePointerInfo info;
+    info.deviceid = deviceid;
+    info.barrier = barrier;
+    info.eventid = eventid;
+
+    XIBarrierReleasePointers(dpy, &info, 1);
+}