mutter/src/tests/clutter
Jonas Ådahl a9a9a0d1c5 clutter: Paint views with individual frame clocks
Replace the default master clock with multiple frame clocks, each
driving its own stage view. As each stage view represents one CRTC, this
means we draw each CRTC with its own designated frame clock,
disconnected from all the others.

For example this means we when using the native backend will never need
to wait for one monitor to vsync before painting another, so e.g. having
a 144 Hz monitor next to a 60 Hz monitor, things including both Wayland
and X11 applications and shell UI will be able to render at the
corresponding monitor refresh rate.

This also changes a warning about missed frames when sending
_NETWM_FRAME_TIMINGS messages to a debug log entry, as it's expected
that we'll start missing frames e.g. when a X11 window (via Xwayland) is
exclusively within a stage view that was not painted, while another one
was, still increasing the global frame clock.

Addititonally, this also requires the X11 window actor to schedule
timeouts for _NET_WM_FRAME_DRAWN/_NET_WM_FRAME_TIMINGS event emitting,
if the actor wasn't on any stage views, as now we'll only get the frame
callbacks on actors when they actually were painted, while in the past,
we'd invoke that vfunc when anything was painted.

Closes: https://gitlab.gnome.org/GNOME/mutter/-/issues/903
Closes: https://gitlab.gnome.org/GNOME/mutter/-/issues/3

https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1285
2020-07-02 19:36:51 +02:00
..
accessibility tests: Replace ClutterRectangle with ClutterActor 2020-06-27 13:35:46 +00:00
conform clutter: Paint views with individual frame clocks 2020-07-02 19:36:51 +02:00
interactive clutter/timeline: Deprecate timelines without an actor or frame clock 2020-07-02 19:36:50 +02:00
micro-bench clutter/actor: Remove anchor points and gravity 2020-06-27 13:35:46 +00:00
performance clutter/actor: Remove anchor points and gravity 2020-06-27 13:35:46 +00:00
clutter-1.0.suppressions cogl: Remove unused CoglFeatureFlags 2019-10-21 21:43:08 +00:00
meson.build tests/clutter: Replace ClutterTexture from image with custom helper 2019-11-13 13:56:08 +00:00
README clutter: Move tests to src/tests 2019-08-24 08:59:08 +00:00
test-utils.h tests/clutter: Replace ClutterTexture from image with custom helper 2019-11-13 13:56:08 +00:00

Outline of test categories:

The conform/ tests should be non-interactive unit-tests that verify a single
feature is behaving as documented. Use the GLib and Clutter test API and macros
to write the test units. The conformance test suites are meant to be used with
continuous integration builds.

The performance/ tests are performance tests, both focused tests testing single
metrics and larger tests. These tests are used to report one or more
performance markers for the build of Clutter. Each performance marker is picked
up from the standard output of running the tests from strings having the form
"\n@ marker-name: 42.23" where 'marker-name' and '42.23' are the key/value pairs
of a single metric. Each test can provide multiple key/value pairs. Note that
if framerate is the feedback metric the test should forcibly enable FPS
debugging itself. The file test-common.h contains utility function helping to
do fps reporting.

The interactive/ tests are any tests whose status can not be determined without
a user looking at some visual output, or providing some manual input etc. This
covers most of the original Clutter tests. Ideally some of these tests will be
migrated into the conform/ directory.

The accessibility/ tests are tests created to test the accessibility support of
clutter, testing some of the atk interfaces.

Other notes:

• All tests should ideally include a detailed description in the source
explaining exactly what the test is for, how the test was designed to work,
and possibly a rationale for the approach taken for testing. Tests for specific
bugs should reference the bug report URL or number.

• When running tests under Valgrind, you should follow the instructions
available here:

        https://wiki.gnome.org/Valgrind

and also use the suppression file available in the Git repository.