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present: fix msc offset calculation in screen mode

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Instead of getting the current msc value from the window crtc,
which not exist take the last saved msc value saved in
the window_priv struct

Signed-off-by: Łukasz Spintzyk <lukasz.spintzyk@synaptics.com>
This commit is contained in:
Łukasz Spintzyk
2020-09-18 14:31:34 +02:00
committed by Povilas Kanapickas
parent 908deb0895
commit d2dce22b67
7 changed files with 52 additions and 10 deletions
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5
present/present_scmd.c
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@@ -634,8 +634,9 @@ present_scmd_update_window_crtc(WindowPtr window, RRCrtcPtr crtc, uint64_t new_m
return;
}
/* Crtc may have been turned off, just use whatever previous MSC we'd seen from this CRTC. */
if (present_get_ust_msc(window->drawable.pScreen, window_priv->crtc, &old_ust, &old_msc) != Success)
/* Crtc may have been turned off or be destroyed, just use whatever previous MSC we'd seen from this CRTC. */
if (!RRCrtcExists(window->drawable.pScreen, window_priv->crtc) ||
present_get_ust_msc(window->drawable.pScreen, window_priv->crtc, &old_ust, &old_msc) != Success)
old_msc = window_priv->msc;
window_priv->msc_offset += new_msc - old_msc;