present: Fix missed notify MSC computation
Only treat divisor==0 as async to immediately report the actual vblank.
If the user species a non-zero divisor, we should compute the missed
vblank properly or else we report too early.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Mario Kleiner <mario.kleiner.de@gmail.com>
(cherry picked from commit 413cb2ff1d
)
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@ -933,7 +933,7 @@ present_notify_msc(WindowPtr window,
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0, 0,
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NULL,
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NULL, NULL,
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PresentOptionAsync,
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divisor == 0 ? PresentOptionAsync : 0,
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target_msc, divisor, remainder, NULL, 0);
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}
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