git: openjdk/jfx-sandbox: renderperf_infinite-8331570: RenderPerf: Review fixes

[duke]

Changeset: 25e7ad9d
Branch: renderperf_infinite-8331570
Author:    Lukasz Kostyra <lukasz.kostyra at oracle.com>
Date:      2024-09-10 10:08:31 +0000
URL:       https://git.openjdk.org/jfx-sandbox/commit/25e7ad9d231390d97651bdaaaab88e69f893d525

RenderPerf: Review fixes

- Fixed occasional exceptions when closing in multi-test scenario. It
  could've happened that AnimationTimer would advance as the Stage is
  closed and resources released, but before the timer is stopped by the
  test program. This caused unwanted NPEs. Prevented by putting
  moveComponents() call inside a check if stage was closed by user.
- Moved Particles class logic inside ParticleRenderable. This reduces
  places in which we keep object count (now it is kept in ParticleRenderer
  and provided to ParticleRenderable via new methods) and allows test
  renderers to modify the object count on their own.
- Following up the above, added roundUpTo4() method that is used to
  round up object count to a multiple of 4. This method is used in
  MultiShape tests. Method will print a warning message that rounding
  occured if it detects the object count is not a multiple of 4.

! tests/performance/animation/RenderPerfTest/src/renderperf/RenderPerfTest.java