Add support for some more WebGL2 limit parameters
Adds support for the following new WebGL2 GetParameter values:
- `MAX_ELEMENT_INDEX`
- `MAX_ELEMENTS_INDICES`
- `MAX_ELEMENTS_VERTICES`
- `MAX_FRAGMENT_INPUT_COMPONENTS`
- `MAX_SAMPLES`
- `MAX_SERVER_WAIT_TIMEOUT`
- `MAX_TEXTURE_LOD_BIAS`
- `MAX_VARYING_COMPONENTS`
- `MAX_VERTEX_OUTPUT_COMPONENTS`
See: https://www.khronos.org/registry/webgl/specs/latest/2.0/#3.7.2
Replaced failible boolean with an enum
<!-- Please describe your changes on the following line: -->
Replaced the boolean `fallible` argument of some WebGL object methods with the new `enum Operation { Fallible, Infallible }` that was added to the `webglrenderingcontext`. This improves the readability of that methods.
---
<!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `___` with appropriate data: -->
- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [X] These changes fix#26047 (GitHub issue number if applicable)
<!-- Either: -->
- [ ] There are tests for these changes OR
- [X] These changes do not require tests because the issue says so
<!-- Also, please make sure that "Allow edits from maintainers" checkbox is checked, so that we can help you if you get stuck somewhere along the way.-->
<!-- Pull requests that do not address these steps are welcome, but they will require additional verification as part of the review process. -->
Add support for DrawRangeElements in WebGL2
Adds initial support for the WebGL2 `DrawRangeElements` call.
<!-- Please describe your changes on the following line: -->
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.
---
<!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `___` with appropriate data: -->
- [x] `./mach build -d` does not report any errors
- [x] `./mach test-tidy` does not report any errors
- [x] There are tests for these changes
cc @mmatyas @zakorgy @jdm
<!-- Also, please make sure that "Allow edits from maintainers" checkbox is checked, so that we can help you if you get stuck somewhere along the way.-->
<!-- Pull requests that do not address these steps are welcome, but they will require additional verification as part of the review process. -->
Avoid a panic when closing webgl pages using VAOs
- [x] `./mach build -d` does not report any errors
- [x] `./mach test-tidy` does not report any errors
- [x] These changes fix#25891
- [x] These changes do not require tests because GC behaviour at shutdown is nondeterministic and difficult to test
Adds another check to the WebGL2 ReadPixels implementation to fix
an OpenGL invalid operation crash when the method is called on a
bound framebuffer that has no read buffer.
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.
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
<!-- Please describe your changes on the following line: -->
cc @jdm @zakorgy @imiklos
---
<!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `___` with appropriate data: -->
- [x] `./mach build -d` does not report any errors
- [x] `./mach test-tidy` does not report any errors
- [x] There are tests for these changes
<!-- Also, please make sure that "Allow edits from maintainers" checkbox is checked, so that we can help you if you get stuck somewhere along the way.-->
<!-- Pull requests that do not address these steps are welcome, but they will require additional verification as part of the review process. -->
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
<!-- Please describe your changes on the following line: -->
Note: Similarly to #25538, some of the functions here also overlap with their WebGL 1 variant.
cc @jdm @zakorgy @imiklos
---
<!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `___` with appropriate data: -->
- [x] `./mach build -d` does not report any errors
- [x] `./mach test-tidy` does not report any errors
- [x] There are tests for these changes
<!-- Also, please make sure that "Allow edits from maintainers" checkbox is checked, so that we can help you if you get stuck somewhere along the way.-->
<!-- Pull requests that do not address these steps are welcome, but they will require additional verification as part of the review process. -->
Add support for WebGL2 uniform array operations
Adds support for the WebGL2 overloads of `uniform[1234][if]v`.
<!-- Please describe your changes on the following line: -->
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
---
<!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `___` with appropriate data: -->
- [x] `./mach build -d` does not report any errors
- [x] `./mach test-tidy` does not report any errors
- [x] There are tests for these changes
<!-- Also, please make sure that "Allow edits from maintainers" checkbox is checked, so that we can help you if you get stuck somewhere along the way.-->
<!-- Pull requests that do not address these steps are welcome, but they will require additional verification as part of the review process. -->
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
<!-- Please describe your changes on the following line: -->
cc @jdm @zakorgy @imiklos
---
<!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `___` with appropriate data: -->
- [x] `./mach build -d` does not report any errors
- [x] `./mach test-tidy` does not report any errors
- [x] There are tests for these changes
<!-- Also, please make sure that "Allow edits from maintainers" checkbox is checked, so that we can help you if you get stuck somewhere along the way.-->
<!-- Pull requests that do not address these steps are welcome, but they will require additional verification as part of the review process. -->
