Closed
Bug 1390384
Opened 7 years ago
Closed 7 years ago
stylo: test_smilKeyTimes.xhtml fails due to failing to fall back to calcMode=discrete
Categories
(Core :: CSS Parsing and Computation, enhancement, P2)
Core
CSS Parsing and Computation
Tracking
()
RESOLVED
FIXED
mozilla57
Tracking | Status | |
---|---|---|
firefox57 | --- | fixed |
People
(Reporter: birtles, Assigned: birtles)
References
(Blocks 2 open bugs)
Details
Attachments
(1 file)
test_smilKeyTimes.xhtml fails with the following errors:
TEST-UNEXPECTED-FAIL | dom/smil/test/test_smilKeyTimes.xhtml | Test case [non-interpolatable fallback] (keyTimes: '0;.2;1' calcMode: linear), t=1.9: Unexpected sample value: - got "round", expected "butt"
TEST-UNEXPECTED-FAIL | dom/smil/test/test_smilKeyTimes.xhtml | Test case [non-interpolatable fallback] (keyTimes: '0;.2;1' calcMode: linear), t=9.9: Unexpected sample value: - got "square", expected "round"
From my initial analysis, in nsSMILAnimationFunction::InterpolateResult we should get an error result when we call `from->Interpolate(*to, intervalProgress, aResult)` (i.e. nsSMILCSSValueType::Interpolate) and that will make us fall back to calcMode=discrete which has special behavior when keyTimes are used.
However, in add_weighted for `AnimationValue` we do the discrete interpolation and then return Ok(). Perhaps in SMIL-land we need to call Servo_Property_IsDiscreteAnimatable is return an error in that case?
Assignee | ||
Comment 1•7 years ago
|
||
We can easily fix this on the SMIL side, however I wonder if Servo_AnimationValues_IsInterpolable and Servo_AnimationValues_Interpolate should actually return false / fail for discrete properties? The only trouble is that in order to do that we'd either need to:
a) Add an extra method to AnimationValue
b) Pass an extra property parameter to these methods
(a) seems bad from a code size point of view. (b) seems a bit messy and unnecessary for transitions (which check for discretely animatable properties earlier on).
For now I'm just going to fix this on the SMIL side.
Assignee: nobody → bbirtles
Status: NEW → ASSIGNED
Comment hidden (mozreview-request) |
Comment 3•7 years ago
|
||
mozreview-review |
Comment on attachment 8897298 [details]
Bug 1390384 - Apply SMIL's calcMode=discrete handling to discretely animatable properties in Stylo;
https://reviewboard.mozilla.org/r/168600/#review173834
::: dom/smil/nsSMILCSSValueType.cpp:565
(Diff revision 1)
> + CSSPROPS_FOR_SHORTHAND_SUBPROPERTIES(p, aProperty,
> + CSSEnabledState::eForAllContent) {
> + // If the shorthand has one or more non-discrete components, it should not
> + // be treated as discrete.
> + if (!Servo_Property_IsDiscreteAnimatable(*p)) {
> + result = false;
Nit: This should be resultAccordingToServo?
::: dom/smil/test/mochitest.ini
(Diff revision 1)
> [test_smilGetStartTime.xhtml]
> [test_smilHyperlinking.xhtml]
> [test_smilInvalidValues.html]
> [test_smilKeySplines.xhtml]
> [test_smilKeyTimes.xhtml]
> -skip-if = stylo
Yay!
Attachment #8897298 -
Flags: review?(hikezoe) → review+
Assignee | ||
Comment 4•7 years ago
|
||
(In reply to Hiroyuki Ikezoe (:hiro) from comment #3)
> ::: dom/smil/nsSMILCSSValueType.cpp:565
> (Diff revision 1)
> > + CSSPROPS_FOR_SHORTHAND_SUBPROPERTIES(p, aProperty,
> > + CSSEnabledState::eForAllContent) {
> > + // If the shorthand has one or more non-discrete components, it should not
> > + // be treated as discrete.
> > + if (!Servo_Property_IsDiscreteAnimatable(*p)) {
> > + result = false;
>
> Nit: This should be resultAccordingToServo?
Oh, good catch!
Assignee | ||
Comment 5•7 years ago
|
||
After making the review change and running a few more tests I discovered that 'text-decoration' is not discrete (since the underline color can be interpolated) but 'marker' is. I'm less sure about the special shorthand handling after all.
https://treeherder.mozilla.org/#/jobs?repo=try&revision=f49aedc03c97b535d633ea726c43019061e7ccd2
Comment hidden (mozreview-request) |
Pushed by bbirtles@mozilla.com:
https://hg.mozilla.org/integration/autoland/rev/6116b4a41649
Apply SMIL's calcMode=discrete handling to discretely animatable properties in Stylo; r=hiro
Comment 8•7 years ago
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||
bugherder |
Status: ASSIGNED → RESOLVED
Closed: 7 years ago
Resolution: --- → FIXED
Target Milestone: --- → mozilla57
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Description
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