Add support for DrawRangeElements in WebGL2
Adds initial support for the WebGL2 `DrawRangeElements` call.
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I have started working on this function, but not sure how could I check for the Uniform Block Backing (https://www.khronos.org/registry/webgl/specs/latest/2.0/#ACTIVE_UNIFORM_BLOCK_BACKING).
I am looking for some advice.
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cc @mmatyas @zakorgy @jdm
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Avoid a panic when closing webgl pages using VAOs
- [x] `./mach build -d` does not report any errors
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- [x] These changes fix#25891
- [x] These changes do not require tests because GC behaviour at shutdown is nondeterministic and difficult to test
The implementation was already in place for OpenGL ES.
My approach with this patch is to add support for WebGL2 by
sharing the implementation between the WebGL2 and GLES.
Store Option<ImageInfo> instead of making fields of ImageInfo optional
Fixes#24582
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Add WebGLSampler support
Reference: https://www.khronos.org/registry/webgl/specs/latest/2.0/#3.7.13
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cc @jdm @zakorgy
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Allow using CORS filtered image responses as WebGL textures
More specifically, this makes the "is this image same origin?" check consider the CORS status of the original response, rather than relying on an overly-strict "is this image's response's URL same-origin with a particular global?" check. To do this, we make the image cache double keyed based on the requested URL as well as the requesting origin, and store the CORS status of the eventual response with the final image that eventually gets sent to the HTMLImageElement consumer.
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- [x] These changes fix#24330 and fix#24368
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There are a few canvas2d-related dependencies that haven't updated, but they
only use euclid internally so that's not blocking landing the rest of the
changes.
Given the size of this patch, I think it's useful to get this landed as-is.
