Fix canvas wpt test `path-objects/2d.path.rect.zero.4.html`
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After connecting the lines of a rectangle, a new subpath has to be created containing the rectangle's origin as the only point in the subpath.
(see step 4 of https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-rect)
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Add WebGL2 specific version strings
Updated the `VERSION` and `SHADING_LANGUAGE_VERSION` WebGL parameters to report the correct version strings when WebGL2 is in use.
See: https://www.khronos.org/registry/webgl/specs/latest/2.0/#3.7.2
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cc @jdm @zakorgy @imiklos
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Add support for WebGL2 uniform matrix operations
Adds support for the `uniformMatrix[234]x[234]fv` WebGL2 functions.
See: https://www.khronos.org/registry/webgl/specs/latest/2.0/#3.7.8
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Note: Similarly to #25538, some of the functions here also overlap with their WebGL 1 variant.
cc @jdm @zakorgy @imiklos
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Fix canvas wpt test ensuring there's a subpath when drawing bezier curves
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These changes will ensure there's a subpath when drawing bezier curves.
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Add support for WebGL2 uniform array operations
Adds support for the WebGL2 overloads of `uniform[1234][if]v`.
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WebGL2 adds two optional parameters for the `uniform[1234][if]v` functions to allow specifying input data ranges. However, because they have the same name and overlapping parameters, the Codegen cannot make a difference between their GL1 and 2 variants. As a workaround, I've added the new parameters to the WebGL1 side, which which isn't strictly what the spec says, but shouldn't break things either. (Note: Firefox devs also run into this issue: [[1](https://searchfox.org/mozilla-central/source/dom/webidl/WebGLRenderingContext.webidl#794), [2](https://bugzilla.mozilla.org/show_bug.cgi?id=1324543)]).
cc @jdm @zakorgy @imiklos
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Initial implementation of GPUBindGroupLayout for WebGPU
Added WebIDL bindings for `GPUBindGroupLayout`, `GPUBindGroupLayoutDescriptor`, `GPUBindingType`, `GPUShaderStage` and `GPUBindGroupLayoutBinding` (Note: The servo's codegen doesn't like the name, because its already occupied).
Implemented the `createBindGroupLayout` function of `GPUDevice`.
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cc @kvark @jdm @zakorgy
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Allow deletions from overflowed textinput
Allow deletions from textinput when the length is greater than the max length.
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Added WebIDL bindings for `GPUBindGroupLayout`, `GPUBindGroupLayoutDescriptor`, `GPUBindingType`, `GPUShaderStage`
and `GPUBindGroupLayoutBinding` (Note: The servo's codegen doesn't like the name, because its already occupied).
Implemented the `createBindGroupLayout` function of `GPUDevice`.
Put target element, form owner, and element document on scope chain of compiled events
Event listeners that are created from a function object just get whatever closure the function object had, but event listeners created from a string need a special closure that acts like they were defined inside a series of `with` statements. This now happens. The existing WPT test for it, html/webappapis/scripting/events/compile-event-handler-lexical-scopes.html, also relies on other behavior we don't have, so I added an easier version of the test that doesn't involve bubbling or capturing and doesn't check any IDL properties we don't have. This new test will eventually be redundant when we have everything else the upstream test expects.
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Add support for WebGL2 unsigned uniform operations
This adds support for the WebGL2 `uniform[1234]ui` and `uniform[1234]uiv` operations.
See: https://www.khronos.org/registry/webgl/specs/latest/2.0/#3.7.8
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cc @jdm @zakorgy @imiklos
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Add support for WebGL2 `RASTERIZER_DISCARD` enum.
Add support for the `RASTERIZER_DISCARD` enum for the WebGL2 version of the `Enable`, `Disable` and `IsEnabled` functions.
See https://www.khronos.org/registry/webgl/specs/latest/2.0/#3.7.2
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cc @jdm @zakorgy @imiklos
Note: The test results may depend on #25519.
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Update wgpu-core
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Update `wgpu-core` to the latest master. This version contains a fix for an issue which occurred when we exited from a WebGPU thread.
cc @kvark @jdm
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Implement queueMicrotask
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The VoidFunction of a user-queued microtask is identical to a PromiseJobCallback in everything but type name, so implementing this method turned out to be just a matter of attaching a WebIDL frontend to a copy-and-pasted backend. All the remaining queueMicrotask WPT failures are because we don't have shared/service workers.
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Allow dumping the fragment tree in layout_2020
This is done when the dump-flow-tree debug option is passed.
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Only start WebGPU thread if an adapter is requested
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This addresses 1 and 2 from https://github.com/servo/servo/issues/24706#issuecomment-555491438
We send a message to constellation instead of creating the `WebGPU` thread on the start. We send back the result to script and set the `Window`'s `web_gpu` component there.
cc @jdm @imiklos
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Add generic to frozen array
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https://github.com/servo/servo/pull/25467#discussion_r364575071
Depends on https://github.com/servo/servo/pull/25467
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