Commit Graph

3 Commits

Author SHA1 Message Date
mtklein
dbfd7ab108 Replace a lot of 'static const' with 'constexpr' or 'const'.
'static const' means, there must be at most one of these, and initialize it at
compile time if possible or runtime if necessary.  This leads to unexpected
code execution, and TSAN* will complain about races on the guard variables.

Generally 'constexpr' or 'const' are better choices.  Neither can cause races:
they're either intialized at compile time (constexpr) or intialized each time
independently (const).

This CL prefers constexpr where possible, and uses const where not.  It even
prefers constexpr over const where they don't make a difference... I want to have
lots of examples of constexpr for people to see and mimic.

The scoped-to-class static has nothing to do with any of this, and is not changed.

* Not yet on the bots, which use an older TSAN.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2300623005

Review-Url: https://codereview.chromium.org/2300623005
2016-09-01 11:24:54 -07:00
bsalomon
2996553ba2 Make blurcircles2 run as a benchmark.
In bench mode it does not draw the comparison paths (or line separators). It also randomly perturbs the blur and circle radii to avoid trivially hitting the same cache entries and each repetition.

BUG=skia:5224
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1985713002

Review-Url: https://codereview.chromium.org/1985713002
2016-05-16 09:36:44 -07:00
bsalomon
c67bb575d0 Add blurcircles2 GM
In GM mode this draws an array of circles with different radii and different blur radii. Below each circle an almost-circle path is drawn with the same blur filter for comparison.

In Sample mode this draws a single circle and almost-circle with animating radius and blur radius.

BUG=skia:5224
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1974353003

Review-Url: https://codereview.chromium.org/1974353003
2016-05-13 13:48:48 -07:00