Do not try to read pixels from an FBO without read buffer
A follow up to #25905, this 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.
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cc @jdm @zakorgy
However, it seems there's an issue with the headless mode: when ReadBuffer is called on the default framebuffer with the value `GL_BACK`, like [here](e1103176e3/tests/wpt/webgl/tests/conformance2/renderbuffers/readbuffer.html (L77)), in headless mode an invalid operation is generated. In non-headless mode the whole test completes successfully:
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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.
Disable running windows binaries on CI.
In order to get more information out of https://github.com/servo/servo/pull/25745, we're going to temporarily disable the parts of windows CI that don't agree with the updated windows server environment.
Add support for WebGL2 read and draw buffer settings
Adds support for the `ReadBuffer` and `DrawBuffers` WebGL2 calls and the related parameter getters.
See:
- https://www.khronos.org/registry/webgl/specs/latest/2.0/#3.7.2
- https://www.khronos.org/registry/webgl/specs/latest/2.0/#3.7.4
- https://www.khronos.org/registry/webgl/specs/latest/2.0/#3.7.11
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This is marked as WIP because with these functions added (but apparently not directly related to them), some tests now run into states that produces crash.
cc @jdm @zakorgy
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Add support for launching devtools server on random port
In case the default port(6000) or the port specified by user for
devtools server is already taken, random port will be assigned to
it which is reported to the embedding layer for display to user.
r?@jdm @paulrouget
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- [X] These changes fix#25907 (GitHub issue number if applicable)
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- [ ] There are tests for these changes OR
- [ ] These changes do not require tests because ___
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layout_2020: Paint hoisted positioned fragments in tree order
Instead of painting hoisted position fragments in the order to which
they are hoisted, paint them in tree order and properly incorporate them
into the stacking context.
We do this by creating a placeholder fragment in the original tree position
of hoisted fragments. The ghost fragment contains an atomic id which
links back to the hoisted fragment in the containing block.
While building the stacking context, we keep track of containing blocks
and their children. When encountering a placeholder fragment we look at
the containing block's hoisted children in order to properly paint the
hoisted fragment.
One notable design modification in this change is that hoisted fragments
no longer need an AnonymousFragment as their parent. Instead they are
now direct children of the fragment that establishes their containing block.
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Handle nonexistent images in CanvasRenderingContext2D.createPattern()
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- [x] These changes fix part of #25331
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Add support for some more WebGL2 renderbuffer functions
Adds support for the following WebGL2 calls:
- `RenderbufferStorageMultisample`
- `GetInternalFormativ`
See: https://www.khronos.org/registry/webgl/specs/latest/2.0/#3.7.5
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The test results depend on #25903.
cc @jdm @zakorgy
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Add VertexArrayObject support for WebGL2
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.
Sadly I couldn't manage to place the WebGL2 and OpenGL ES variant to the same slot in `WebGLRenderingContext`, therefore I had to do same code duplication.
Fixes#25956.
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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.
Accept only connected attributes for checkbox and radio activation behavior
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Accept only connected attributes for checkbox and radio activation behavior
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- [x] These changes fix#25906
- [x] WPT tests were already here
Instead of painting hoisted position fragments in the order to which
they are hoisted, paint them in tree order and properly incorporate them
into the stacking context.
We do this by creating a placeholder fragment in the original tree position
of hoisted fragments. The ghost fragment contains an atomic id which
links back to the hoisted fragment in the containing block.
While building the stacking context, we keep track of containing blocks
and their children. When encountering a placeholder fragment we look at
the containing block's hoisted children in order to properly paint the
hoisted fragment.
One notable design modification in this change is that hoisted fragments
no longer need an AnonymousFragment as their parent. Instead they are
now direct children of the fragment that establishes their containing block.
Update surfman-chains multi branch
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Updates the mutli branch of surfman-chains, which we get from git, so is broken when I rebase.
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- [x] These changes do not require tests because it fixes CI bustage
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