Refactor CanvasRenderingContext2D.arc() and .ellipse()
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Refactor `arc()` and `ellipse()` to make use of `lyon_geom::Arc` for approximating an arc with quadratic bezier curves.
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Remove azure canvas backend
closes#25833
Issue description: Now that the raqote backend has reached feature parity and been enabled by default, we should remove the unused azure backend entirely.
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Implement mapReadAsync function of GPUBuffer
Implemented the `mapReadAsync` and fixed the `unmap` functions of `GPUBuffer`.
Added `mapped` internal slot for tracking the ArrayBuffer/Promise.
Added more states to the `GPUBufferState` enum.
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cc @kvark @jdm @zakorgy
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Per fetch file token for blob url
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Depends on https://github.com/servo/servo/pull/25724
First step of https://github.com/servo/servo/issues/25226
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Generate ::before and ::after content for layout_2020
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This PR generates content from the `<string>` and `attr(<identifier>)` `content` property values. I'll work on other values in follow-ups.
Implemented the `mapReadAsync` and fixed the `unmap` functions of `GPUBuffer`.
Added `mapped` internal slot for tracking the ArrayBuffer/Promise.
Added more states to the `GPUBufferState` enum.
Implement Broadcastchannel
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FIX#21025
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Implement dirname support for form element
Added support for dirname in input on form submit
Added Dir getter / setter for HTMLElement
NOT YET Added get directionality according to https://html.spec.whatwg.org/multipage/dom.html#the-directionality
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Add new Servo Logo
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* Added servo-64.png (replacing servo64.png @ 64px)
* Added servo-100.png (replacing doge-tiny.png @ 100px)
* Added servo-500.png
* Added servo-500-icon.ico
* Added servo-1000.png (replacing servo.png @ 1000px)
* Added servo.svg (replacing servo.svg)
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Avoid accessing global objects from DOM destructors
This removes all instances that I could find of DOM objects accessing `self.global()` in code that runs as part of a Drop method. This is unsafe because the GC could destroy objects in any order when doing a big sweep. Instead, these types should store the data they need as members so they can run in isolation without accessing the rest of the GC graph as part of their destructors.
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Stop iframes from including their ancestors
An iframe that included itself would just keep loading until running out of resources; the spec includes protection against that, and now Servo follows (some of) the spec about it.
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Add initial support for transforms to layout_2020
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Add support for WebGL2 clear buffer operations
Adds support for the following WebGL2 methods:
- `clearBufferfv`
- `clearBufferiv`
- `clearBufferuiv`
- `clearBufferfi`
See: https://www.khronos.org/registry/webgl/specs/latest/2.0/#3.7.11
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cc @jdm @zakorgy
Note: While the code itself doesn't depend on any other PRs, some of the tests do require WebGL2 framebuffer/renderbuffer support (#25785).
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