Some information of `canvas_data::Pattern` was lost by
converting it to `raqote::Source` due to the fact that Raqote
did not store this information (e.g. linear gradient's start/end
points). We introduce another layer to keep this information for later
use (like in `is_zero_size_gradient()`).
From `addColorStop(offset, color)`s spec:
If multiple stops are added at the same offset on a gradient, they must
be placed in the order added, with the first one closest to the start of
the gradient, and each subsequent one infinitesimally further along
towards the end point (in effect causing all but the first and last stop
added at each point to be ignored)
https://www.w3.org/html/test/results/2dcontext/annotated-spec/canvas.html#testrefs.2d.gradient.interpolate.overlapu
This patch adds initial support for WebGLSync.
Note:
There is no test for the isSync, deleteSync and waitSync functions in the `conformance2/sync/sync-webgl-specific.html`.
Remove unused dependencies
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Removes unused crates from `Cargo.toml` to (possibly) shorten build time.
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Fix immersive mode panic on three.js rollercoaster on hololens
We have some special logic about texture formats when creating drawing buffers for WebGL that needs to be shared with the code that creates a separate framebuffer for immersive mode.
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- [x] These changes fix#24083 and fix#20595.
- [x] These changes do not require tests because no CI for hololens; tested manually in the emulator.
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