[PATCH 4/5] kdrive: modify ephyr events to use POINTER_DESKTOP and scale them to that
Peter Hutterer
peter.hutterer at who-t.net
Sun Oct 6 23:11:14 PDT 2013
A multi-head Xephyr instance has the pointer stuck on one screen because of
bad coordinate calculation. The coordinates passed to GetPointerEvents are
per-screen, so the cursor gets stuck on the left-most screen by default.
Adjust and mark the events as POINTER_DESKTOP, so the DIX can adjust them
accordingly.
Signed-off-by: Peter Hutterer <peter.hutterer at who-t.net>
---
hw/kdrive/ephyr/ephyr.c | 8 +++++++-
hw/kdrive/src/kdrive.h | 1 +
hw/kdrive/src/kinput.c | 2 ++
3 files changed, 10 insertions(+), 1 deletion(-)
diff --git a/hw/kdrive/ephyr/ephyr.c b/hw/kdrive/ephyr/ephyr.c
index a603ef7..b9fa2eb 100644
--- a/hw/kdrive/ephyr/ephyr.c
+++ b/hw/kdrive/ephyr/ephyr.c
@@ -961,7 +961,13 @@ ephyrProcessMouseMotion(xcb_generic_event_t *xev)
}
EPHYR_LOG("final (x,y):(%d,%d)\n", x, y);
#endif
- KdEnqueuePointerEvent(ephyrMouse, mouseState, x, y, 0);
+
+ /* convert coords into desktop-wide coordinates.
+ * fill_pointer_events will convert that back to
+ * per-screen coordinates where needed */
+ x += screen->pScreen->x;
+ y += screen->pScreen->y;
+ KdEnqueuePointerEvent(ephyrMouse, mouseState|POINTER_DESKTOP, x, y, 0);
}
}
diff --git a/hw/kdrive/src/kdrive.h b/hw/kdrive/src/kdrive.h
index d5d0799..296d611 100644
--- a/hw/kdrive/src/kdrive.h
+++ b/hw/kdrive/src/kdrive.h
@@ -506,6 +506,7 @@ KdEnqueueKeyboardEvent(KdKeyboardInfo * ki, unsigned char scan_code,
#define KD_BUTTON_4 0x08
#define KD_BUTTON_5 0x10
#define KD_BUTTON_8 0x80
+#define KD_POINTER_DESKTOP 0x40000000
#define KD_MOUSE_DELTA 0x80000000
void
diff --git a/hw/kdrive/src/kinput.c b/hw/kdrive/src/kinput.c
index 527c7a2..226c2e6 100644
--- a/hw/kdrive/src/kinput.c
+++ b/hw/kdrive/src/kinput.c
@@ -1894,6 +1894,8 @@ KdEnqueuePointerEvent(KdPointerInfo * pi, unsigned long flags, int rx, int ry,
}
else {
dixflags = POINTER_ABSOLUTE;
+ if (flags & KD_POINTER_DESKTOP)
+ dixflags |= POINTER_DESKTOP;
if (x != pi->dixdev->last.valuators[0] ||
y != pi->dixdev->last.valuators[1])
_KdEnqueuePointerEvent(pi, MotionNotify, x, y, z, 0, dixflags,
--
1.8.3.1
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