diff options
author | Timm Bäder <mail@baedert.org> | 2020-01-08 09:42:23 +0100 |
---|---|---|
committer | Matthias Clasen <mclasen@redhat.com> | 2020-01-10 14:06:55 -0500 |
commit | 8c50312abf380d544e2a654a69fca94e0e48629e (patch) | |
tree | 9485800a017b95522beac056c791f2cb582424d5 | |
parent | 723010ed09a0672d1d253f9d2751807db6ef45b6 (diff) | |
download | gtk+-8c50312abf380d544e2a654a69fca94e0e48629e.tar.gz |
cssnumbervalue: Add early-outs to transition code
we don't need to do the calculation at all if the progress is 0 or 1
anyway.
We also sometimes transition from 0 to 0 etc., so we can short-circuit
that as well by doing the fast pointer-equality check and relying on the
singletons.
-rw-r--r-- | gtk/gtkcssnumbervalue.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/gtk/gtkcssnumbervalue.c b/gtk/gtkcssnumbervalue.c index f5e574c81d..83fa257f01 100644 --- a/gtk/gtkcssnumbervalue.c +++ b/gtk/gtkcssnumbervalue.c @@ -115,6 +115,15 @@ gtk_css_number_value_transition (GtkCssValue *start, { GtkCssValue *result, *mul_start, *mul_end; + if (progress == 0) + return _gtk_css_value_ref (start); + + if (progress == 1) + return _gtk_css_value_ref (end); + + if (start == end) + return _gtk_css_value_ref (start); + mul_start = gtk_css_number_value_multiply (start, 1 - progress); mul_end = gtk_css_number_value_multiply (end, progress); |