mutter/tests
Neil Roberts 701440efd8 clutter-actor: Add a 'has_overlaps' virtual
This adds a virtual to ClutterActor so that an actor subclass can
report whether it has overlapping primitives. ClutterActor uses this
to determine whether it needs to use ClutterFlattenEffect to implement
the opacity property. The default implementation of the virtual
returns TRUE which means that most actors will end up being redirected
offscreen when the opacity != 255. ClutterTexture and ClutterRectangle
override this to return FALSE because they should never need to be
redirected. ClutterClone overrides it to divert to the source.

The values for the ClutterOffscreenRedirect enum have changed to:

AUTOMATIC_FOR_OPACITY

 The actor will only be redirected if has_overlaps returns TRUE and
 the opacity is < 255

ALWAYS_FOR_OPACITY

 The actor will always be redirected if the opacity < 255 regardless
 of the return value of has_overlaps

ALWAYS

 The actor will always be redirected offscreen.

This means that the property can't be used to prevent the actor from
being redirected but only to increase the likelihood that it will be
redirected.

ClutterActor now adds and removes the flatten effect depending on
whether flattening is needed directly in clutter_actor_paint(). There
are new internal versions of add/remove_effect that don't queue a
redraw. This means that ClutterFlattenEffect is now just a no-op
subclass of ClutterOffscreen. It is only needed because
ClutterOffscreen is abstract. Removing the effect also makes it so
that the cached image will be freed as soon as an actor is repainted
without being flattened.
2011-05-13 01:46:32 +01:00
..
accessibility tests: abort if clutter_init fails 2011-02-28 14:10:04 +00:00
conform clutter-actor: Add a 'has_overlaps' virtual 2011-05-13 01:46:32 +01:00
data model: Add support to define rows in ClutterScript 2011-01-21 20:44:17 +00:00
interactive Remove last dependency on the GdkPixbuf API 2011-05-06 15:44:13 +01:00
micro-bench tests: Check return value of clutter_init_with_args instead of error 2011-02-28 14:10:06 +00:00
Makefile.am Replace the disable-npots tool with a COGL_DEBUG option 2010-11-05 18:45:31 +00:00
README Add accessibility tests 2010-07-05 16:45:43 +01:00

Outline of test categories:

The conform/ tests should be non-interactive unit-tests that verify a single
feature is behaving as documented. See conform/ADDING_NEW_TESTS for more
details.

The micro-bench/ tests should be focused perfomance test, ideally testing a
single metric. Please never forget that these tests are synthetec and if you
are using them then you understand what metric is being tested. They probably
don't reflect any real world application loads and the intention is that you
use these tests once you have already determined the crux of your problem and
need focused feedback that your changes are indeed improving matters. There is
no exit status requirements for these tests, but they should give clear
feedback as to their performance. If the framerate is the feedback metric, then
the test should forcibly enable FPS debugging.

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 conformance/ directory so they can be used in automated
nightly tests.

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

The data/ directory contains optional data (like images and ClutterScript
definitions) that can be referenced by a test.

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.

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

        http://live.gnome.org/Valgrind

and also use the suppression file available inside the data/ directory.