stylo: do not handle the fallback discrete animation inside the Animate trait
At present, we do the fallback discrete animation for non-invertible matrices in
ComputedMatrix.animate(). However, according to the spec, we should fallback to
discrete animation for cases like:
1. animation between transform with single non-invertible matrix
2. animation between transform with matched transform functions that have at least
one non-invertible matrix
2. animation between transform with mismatched transform functions that have at
least one non-invertible matrix.
The current implementation only handles the first case.
Moreover, we already have fallback discrete animation procedures in CSS Animation
and Web Animation, so we should be able to not doing any fallback inside the
Animate trait.
In this patch, we let the animation between non-invertible matrices to return Err().
So, we can propagate the Err() to the callers, and let the fallback discrete
animation procedure stay at the Servo_MatrixTransform_Operate, which is ouside
the Animate trait.
Gecko bug: [Bug 1394284](https://bugzilla.mozilla.org/show_bug.cgi?id=1394284)
---
- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [X] These changes fix [Bug 1394284](https://bugzilla.mozilla.org/show_bug.cgi?id=1394284)
- [X] There are wpt tests for these changes, and thet will be landed in [Bug 1394284](https://bugzilla.mozilla.org/show_bug.cgi?id=1394284)
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At present, we do the fallback discrete animation for non-invertible matrices in
ComputedMatrix.animate(). However, according to the spec, we should fallback to
discrete animation for cases like:
1. animation between transform with single non-invertible matrix
2. animation between transform with matched transform functions that have at least
one non-invertible matrix
2. animation between transform with mismatched transform functions that have at
least one non-invertible matrix.
The current implementation only handles the first case.
Moreover, we already have fallback discrete animation procedures in CSS Animation
and Web Animation, so we should be able to not doing any fallback inside the
Animate trait.
In this patch, we let the animation between non-invertible matrices to return Err().
So, we can propagate the Err() to the callers, and let the fallback discrete
animation procedure stay at the Servo_MatrixTransform_Operate, which is ouside
the Animate trait.
If we don't increment the reference count for the Atom in servo side, it's
possible to try to release the Atom in servo side even if we have already
released in gecko side. When it happens, nsIAtom::mKind is no longer reliable.
Drop RulesChanged
It's no longer used.
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Improve Webrender<->WebGL synchronization
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Webrender<->WebGL synchronization is not perfect yet, and it has some flickering specially when adding more elements on the page than a single full-screen canvas.
This PR improves the synchronization by using the WR thread to perform the fence wait. All the flickering with multiple elements on the page is gone thanks to this change.
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- [ ] These changes fix#14235 (github issue number if applicable).
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- [x] There are tests for these changes OR
- [ ] These changes do not require tests because _____
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Fix MallocSizeOf for TypedSize2D.
TypedSize2D's MallocSizeOf impl has two problems.
- It measures `width` twice, and `height` not at all.
- It erroneously asserts that `width` and `height` are scalars. This
seems reasonable at first blush, but Stylo uses
`BorderRadius<LengthAndPercentage>` which contains a
`TypedSize2D<LengthAndPercentage, UnknownUnit>`, and
`LengthAndPercentage` is non-scalar.
This patch fixes both of these problems, and also removes a low-value
`use` statement.
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- [ ] These changes fix https://bugzilla.mozilla.org/show_bug.cgi?id=1401692
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TypedSize2D's MallocSizeOf impl has two problems.
- It measures `width` twice, and `height` not at all.
- It erroneously asserts that `width` and `height` are scalars. This
seems reasonable at first blush, but Stylo uses
`BorderRadius<LengthAndPercentage>` which contains a
`TypedSize2D<LengthAndPercentage, UnknownUnit>`, and
`LengthAndPercentage` is non-scalar.
This patch fixes both of these problems, and also removes a low-value
`use` statement.
Window should own Location, Document shouldn't
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Document shouldn't own location, Window should.
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- [X] These changes fix#18438
- [X] These changes do not require tests because it's an intermittent
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Update some dependencies to fix some warnings
"`#[must_use]` on methods is experimental" and "trait bounds are not (yet) enforced in type definitions" are shown despite Cargo using `--cap-lints=allow` for dependencies.
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"`#[must_use]` on methods is experimental" and
"trait bounds are not (yet) enforced in type definitions"
are shown despite Cargo using `--cap-lints=allow` for dependencies.
Bug 1398393 - Add a way to initialize a cooperative thread in servo.
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Over in [bug 1398393](https://bugzilla.mozilla.org/show_bug.cgi?id=1398393), I found that when we turn Quantum DOM's cooperative threads on, we hit a Servo panic because we assume that we've set some state in the TLD. The cooperative threads currently have no way of doing this without also re-initializing the log module and some other static data. This small patch gives the cooperative threads a way of informing Servo about themselves.
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Measure the UA cache.
This is the Servo PR for https://bugzilla.mozilla.org/show_bug.cgi?id=1400078
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ServoStyleSetSizes now has two uses, one for the Stylist, and one for the UA
cache, and so the patch removes 'Stylist' from the field names.
Example output from about:memory:
> +----1,359,608 B (00.55%) -- layout
> | +----756,488 B (00.31%) -- style-sheet-cache [2]
> | +----393,968 B (00.16%) -- servo-ua-cache
> | | +--234,496 B (00.10%) -- element-and-pseudos-maps
> | | +---59,648 B (00.02%) -- revalidation-selectors
> | | +---58,320 B (00.02%) -- invalidation-map
> | | +---30,752 B (00.01%) -- other
> | | +---10,752 B (00.00%) -- precomputed-pseudos
