Add support for WebGL2 MIN_PROGRAM_TEXEL_OFFSET
Improves the support of the WebGL2 `MIN_PROGRAM_TEXEL_OFFSET` property (ie. stores it as a signed integer) and adds support for querying it using GetParameter.
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
Depends on #26333 because they touch the same test files.
---
<!-- 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 even more WebGL2 GetParameter enums
Adds support for the following new WebGL2 GetParameter values:
- `PACK_ROW_LENGTH`
- `PACK_SKIP_PIXELS`
- `PACK_SKIP_ROWS`
- `RASTERIZER_DISCARD`
- `UNPACK_IMAGE_HEIGHT`
- `UNPACK_ROW_LENGTH`
- `UNPACK_SKIP_IMAGES`
- `UNPACK_SKIP_PIXELS`
- `UNPACK_SKIP_ROWS`
See: https://www.khronos.org/registry/webgl/specs/latest/2.0/#3.7.2
<!-- Please describe your changes on the following line: -->
Depends on #26265 because they touch the same test file.
cc @jdm @zakorgy
---
<!-- 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 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
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.
It seems the WPT test runner/updater has some troubles picking up
successful test results, so I've regenerated the `ini` files manually
for the WebGL2 tests.