Correct bloom hash bitpacking documentation
The two 12 bit keys add to 24 bits, which leaves 8 bits free in each word. (And 8 * 3 = 24, to pack in the fourth hash.)
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I have never actually built servo, but I'm pretty sure that's not necessary for a 1 line comment-only change
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When stylo is not enabled in Gecko, the global state initialization
still creates the style thread pool, even when it's not going to be
used. This wastes address space and a little memory.
See https://bugzilla.mozilla.org/show_bug.cgi?id=1374824#c38 and
following comment.
Fix several bugs related to scrolling
* scrollLeft/scrollTop returned values of parent or even document root
Only the scroll of the node itself is returned. Otherwise 0.0.
* Scrolling via script had set viewport.
This resulted in other nodes appearing scrolled.
Now scroll_offsets are updated with correct node id.
These bugs caused other odd behavior like both body and
document.documentElement being scrolled or the view for scrolled
elements jumping.
Also try scrolling this [example page](https://pyfisch.org/stuff/scrolltest.html) in servo with and without this change.
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return Option from GlobalScope::current
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handles the case where `GlobalScope::current` calls `CurrentGlobalOrNull` and the result is null
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Add get_zero_value for IntermediateSVGPaint.
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This is a PR for https://bugzilla.mozilla.org/show_bug.cgi?id=1371199
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There are tests for these changes, a test case will be landed in reftests in https://bugzilla.mozilla.org/show_bug.cgi?id=1371199
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Bump cssparser version to 0.16.1 in toml files
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`ElementStyles` holds an optional list of values for each eager pseudo-element.
However, the type was declared as a slice instead of a fixed size array, so an
extra 8 bytes were being allocated to hold the size, even though it never
changes.
Moving the constant size into the type reduces `ElementStyles` and `ElementData`
by 8 bytes.
MozReview-Commit-ID: GaO6DKFxUMo
Before this change, the `ComputedStyle` struct that is part of permanent style
data per element holds 2 `StrongRuleNode`s (unvisited and visited) and 2
`Arc<ComputedValues>` (unvisited and visited).
Both rule nodes and the visited values don't actually need to be here. This
patch moves these 3 to new temporary storage in `CascadeInputs` on
`CurrentElementInfo` during the match and cascade process. Rule nodes are
pushed down inside the `ComputedValues` for later access after the cascade.
(Visited values were already available there.)
The permanent style data per element now has just the `Arc<ComputedValues>` for
itself and eager pseudo-elements (plus the `RestyleHint`).
MozReview-Commit-ID: 3wq52ERMpdi
In the patch after this, the existing `ComputedStyle` type is renamed and
repurposed as temporary storage of inputs for the cascade. To make it a bit
easier to follow what code is new, this patch starts by copying `ComputedStyle`
to context.rs without changes.
MozReview-Commit-ID: 41COA5rEoz7
Remove target and data fields from parse_node_data
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`parse_node_data` does not need to store `data` and `target`, they can automatically be passed as parameters to the parser operation (`ParseOperation::CreatePI`) that we already create to be processed.
Also, this frees up `process_op` from depending on the sink's `parse_node_data` field, which will later allow for the sink to exist on the parser thread separately.
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Paint worklet size should agree with Chrome.
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Getting our implementation to agree with Chrome about the definition of the size parameter to a paint worklet.
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Implement webkit prefixed values for display property
Added -webkit-{flex,inline-flex} values as flex, inline-flex. I didn't do this gecko only since that doesn't require anything in layout side.
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style: Be more strict when setting the root font size.
Before this commit, we assumed that if the element had no parent element, it was
the root of the document, which is plain false, since we can arrive there from,
let's say, getComputedStyle on a detached node.
Bug: 1374062
Reviewed-By: heycam
MozReview-Commit-ID: 65DxdzXgd0J
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The current code is mostly bechmarking Rust's default hash routines for
integers, which is not interesting to us. We add generating function
that jumps around "enough" and also add benchmarks for clear().
It's hard to read too much into the numbers because we can't reliably
simulate L1/L2 cache behavior with cargo bench, but the results show
about 40ns for clear() about 2ns for insert, and about 1.5ns for
contains/remove. This informs our thinking in the next patch.
This is important because we're about to start storing a parallel list
of pushed hashes, and the current behavior here will cause mismatches
there.
We take the opportunity to bump the SmallVec size to 16, since each
entry is only a word and we really want to avoid heap-allocating. And
then we switch to drain(), because of
https://github.com/rust-lang/rust/issues/42763
Right now when calling getComputedStyle with an element from another document,
we return the style using the pres context of that document, not of the document
of the window getComputedStyle was called on, so this holds.
But it will stop holding if we ever change this, so assert it doesn't happen.
Bug: 1374062
Reviewed-By: Manishearth
MozReview-Commit-ID: 3g8yQWWdsen
Improve decisions in compositor over when to draw a frame.
This patch fixes a couple of issues in the compositor:
1) Remove the delayed composition code. Previously, this would schedule
a composite for 12ms in the future. This doesn't really make any sense
with WR. There's no point in doing a composite unless WR has provided
a new frame to be drawn. This fixes issues in several benchmarks where
we were doing multiple composite / renders per rAF, which is a waste
of CPU time. This *does* make the framerate slower in some cases (such
as a slow rAF callback) but it's more correct - otherwise we were just
compositing the same frame multiple times for no real benefit.
2) Inform the window of the current animation state of the compositor.
Specifically, if an animation (or rAF) is currently active, the
window system switches to use event polling, and does not block on
the OS-level event loop. In the case of active animation, we just
assume that we want to be running as the vsync interval and not
blocking. This means the compositor thread only sleeps on vsync
during animation, which reduces OS scheduling and results in much
smoother animation.
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Make background gradient cover padding
CSS-gradients should not only cover the content of an
element but also the padding (but not the border).
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Thanks to @atouchet for catching this.
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- [x] These changes do not require tests because gradients are hard to test automatically but you can use [this gist](https://gist.github.com/pyfisch/fa263c8dfc57e5812fe8a4869ad61513) as a manual test.
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Add an update_stylesheet method to StylesheetSet.
MozReview-Commit-ID: KlRkApYL8wk
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Provides a method for just-cloned sheets to be swapped in to stylesheet_sets without changing the order or triggering restyle.
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Before this commit, we assumed that if the element had no parent element, it was
the root of the document, which is plain false, since we can arrive there from,
let's say, getComputedStyle on a detached node.
Bug: 1374062
Reviewed-By: heycam
MozReview-Commit-ID: 65DxdzXgd0J
Expose -moz-context-properties on stylo
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Gecko already exposed `-moz-context-properties` behind pref `svg.context-properties.content.enabled`. I think we should do the same thing on stylo and make the reftests of `context-fill` and `context-stroke` pass.
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We simply implement ToCss for Option<T>, printing nothing if the value is None,
and we then use SequenceWriter to skip writing of separators around empty parts.
