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| author | Keith Packard <keithp@keithp.com> | 2013-11-07 14:17:12 -0800 |
|---|---|---|
| committer | Keith Packard <keithp@keithp.com> | 2013-11-20 13:12:22 -0800 |
| commit | 4f3c37a1f17ffcfbbff71d217e1caad3d0148c90 (patch) | |
| tree | fed0f04c04eb99638e7ccc8c4f089211b8870cbf /present | |
| parent | da9997f89f14ab619f244d5b2e80a423b028c789 (diff) | |
present: Round fake MSC computations intead of truncating
If the timer fired too early, we'd sometimes mis-compute the MSC for
fake vblanks. Rounding the computation to the nearest MSC fixes this nicely.
Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Diffstat (limited to 'present')
| -rw-r--r-- | present/present_fake.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/present/present_fake.c b/present/present_fake.c index a67759254..e550e98f8 100644 --- a/present/present_fake.c +++ b/present/present_fake.c @@ -42,7 +42,7 @@ present_fake_get_ust_msc(ScreenPtr screen, uint64_t *ust, uint64_t *msc) present_screen_priv_ptr screen_priv = present_screen_priv(screen); *ust = GetTimeInMicros(); - *msc = *ust / screen_priv->fake_interval; + *msc = (*ust + screen_priv->fake_interval / 2) / screen_priv->fake_interval; return Success; } |