diff options
| author | Chris Wilson <chris@chris-wilson.co.uk> | 2016-02-23 14:36:10 +0000 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2016-02-23 14:36:10 +0000 |
| commit | 3593a2d18928f74ee470f824dc34b8b5b148ce2d (patch) | |
| tree | 22460078a037aaa9d632807f1d93838bbcd87aff /src/sna/sna_dri2.c | |
| parent | 64b1b1f10da59f15a91141c9f76d7d09517f8ea8 (diff) | |
sna/dri2: Reset front pointer on frame event across a modeset
If the root window's pixmap is changed (e.g. to resizing the
framebuffer) then an outstanding flip becomes invalid. The invalid flip
is marked as having a stale front, and that triggers an assertion if the
user then tries to schedule flip before the pending flip event is
processed.
References: https://bugs.freedesktop.org/show_bug.cgi?id=9425
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Diffstat (limited to 'src/sna/sna_dri2.c')
| -rw-r--r-- | src/sna/sna_dri2.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/src/sna/sna_dri2.c b/src/sna/sna_dri2.c index 9398c0a8..2fcda876 100644 --- a/src/sna/sna_dri2.c +++ b/src/sna/sna_dri2.c @@ -3075,8 +3075,11 @@ sna_dri2_schedule_flip(ClientPtr client, DrawablePtr draw, xf86CrtcPtr crtc, if (info && info->draw == draw) { assert(info->type != FLIP); - assert(info->front == front); assert(info->queued); + if (info->front != front) { + assert(info->front == NULL); + info->front = sna_dri2_reference_buffer(front); + } if (info->back != back) { _sna_dri2_destroy_buffer(sna, draw, info->back); info->back = sna_dri2_reference_buffer(back); @@ -3129,6 +3132,7 @@ sna_dri2_schedule_flip(ClientPtr client, DrawablePtr draw, xf86CrtcPtr crtc, info->type = use_triple_buffer(sna, client, *target_msc == 0); if (!sna_dri2_flip(info)) { DBG(("%s: flip failed, falling back\n", __FUNCTION__)); + info->signal = false; sna_dri2_event_free(info); return false; } @@ -3179,6 +3183,7 @@ queue: /* Account for 1 frame extra pageflip delay */ if (!sna_wait_vblank(info, draw_target_seq(draw, *target_msc - 1))) { + info->signal = false; sna_dri2_event_free(info); return false; } |