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authorMichel Dänzer <michel.daenzer@amd.com>2016-02-24 16:52:59 +0900
committerAdam Jackson <ajax@redhat.com>2016-02-25 10:18:04 -0500
commitb4ac7b142fa3c536e9b283cfd34b94d82c03aac6 (patch)
treeb965b439e8ea7cf93624b9a011cce21639ffc436
parente7a35b9e16aa12970908f5d55371bb1b862f8f24 (diff)
present: Only requeue if target MSC is not reached after an unflip
While present_pixmap decrements target_msc by 1 for present_queue_vblank, it leaves the original vblank->target_msc intact. So incrementing the latter for requeueing resulted in the requeued presentation being executed too late. Also, no need to requeue if the target MSC is already reached. This further reduces stutter when a popup menu appears on top of a flipping fullscreen window. Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
-rw-r--r--present/present.c7
1 files changed, 3 insertions, 4 deletions
diff --git a/present/present.c b/present/present.c
index 7f9fc17c3..62865be69 100644
--- a/present/present.c
+++ b/present/present.c
@@ -582,10 +582,8 @@ present_check_flip_window (WindowPtr window)
xorg_list_for_each_entry(vblank, &window_priv->vblank, window_list) {
if (vblank->queued && vblank->flip && !present_check_flip(vblank->crtc, window, vblank->pixmap, vblank->sync_flip, NULL, 0, 0)) {
vblank->flip = FALSE;
- if (vblank->sync_flip) {
+ if (vblank->sync_flip)
vblank->requeue = TRUE;
- vblank->target_msc++;
- }
}
}
}
@@ -622,7 +620,8 @@ present_execute(present_vblank_ptr vblank, uint64_t ust, uint64_t crtc_msc)
if (vblank->requeue) {
vblank->requeue = FALSE;
- if (Success == present_queue_vblank(screen,
+ if (msc_is_after(vblank->target_msc, crtc_msc) &&
+ Success == present_queue_vblank(screen,
vblank->crtc,
vblank->event_id,
vblank->target_msc))