stylo: Implement font feature values lookup
This PR reviewed by emilio and xidorn on bugzilla. That is backed out because of Windows build problems. Fixed and landing it again.
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The tests are designed for this, and trying to accommodate 32-bit
platforms is difficult. Size concerns due to element packing and holes
are less of a problem on 32-bit platforms in any event.
The @font-feature-values declaration identifiers are asci case insensitive.
We should convert all of them to lowercase to be able to reduce the same
declarations. Also gecko stores them as lowercase in gfxFontFeatureValueSet.
We can't use a slice anymore, because the input might be the VecDeque from the
sequential traversal, which requires an iterator to handle the ring buffer.
MozReview-Commit-ID: JwH6MtRgMfY
This has two advantages:
* It allows us to store nodes in the same format that the parallel traversal uses.
* It allows us to double the size of the sequential work queue without increasing
the storage, which allows us to have WORK_UNIT_MAX * 2 entries before heap-
allocating, which is about what we want for adaptive mode.
MozReview-Commit-ID: 6VQwGfTQgct
Remove unused SelectorIter import
Follow up of #18225
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Bug 1376883 - stylo: Drop thread pool stack size to 100k. r=bholley.
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Bug 1376883 - stylo: Drop thread pool stack size to 100k. r=bholley.
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We could use this method to convert a TransformList into a Matrix, and
use this matrix for computing distance for Stylo and rendering the transform
for Servo.
This is an equivalent of nsStyleTransformMatrix::ReadTransforms in Gecko.
Add an API to process all invalidations on the main thread
fixes [bug 1388298](https://bugzil.la/1388298)
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style: Only store applicable ::before / ::after pseudo styles during the traversal.
This should help memory usage quite a bit.
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Remove unused selector visitor argument.
The real win here is avoiding cloning the iterator when nobody actually uses it.
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We need to check whether the function fails or not in order to check whether
we support the specified paced animation values.
Current servo returns 0.0 when failed computing distance, so servo doesn't
distinguish its failure. This patch makes Servo_AnimationValue_ComputeDistance
return a negative value when the function fails.
This patch will skip add_weighted() when self_portion + other_portion not equal
to zero. (i.e. adding or accumulating).
Gecko does same behavior since we can't add two auto value.
stylo: Implement font feature values lookup
This PR reviewed by emilio and xidorn on bugzilla
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Use FnvHashMap in WebGL implementation.
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Follow up from the WebGL redesign: https://github.com/servo/servo/pull/17891
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Add a reusable sheets parameter to Servo_StyleSheet_FromUTF8Bytes.
MozReview-Commit-ID: DdMQpUY1WcJ
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https://bugzilla.mozilla.org/show_bug.cgi?id=1387933https://reviewboard.mozilla.org/r/171308/
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The @font-feature-values declaration identifiers are asci case insensitive.
We should convert all of them to lowercase to be able to reduce the same
declarations. Also gecko stores them as lowercase in gfxFontFeatureValueSet.
Devirtualize CSS error reporting.
This removes a trait object from the path of reporting a CSS error.
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Handle aarch64 cpu_type in mach
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This is a PR for #18217.
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