[Wayland][WebRender] Use headless context in RenderCompositorEGL
Categories
(Core :: Graphics: WebRender, enhancement)
Tracking
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| firefox67 | --- | fixed |
People
(Reporter: sotaro, Assigned: sotaro)
References
(Blocks 3 open bugs)
Details
Attachments
(1 file, 1 obsolete file)
RenderCompositorEGL does not use headless context for now. It is better to use headless context.
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Updated•5 years ago
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Updated•5 years ago
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Comment 1•5 years ago
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Comment 2•5 years ago
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Updated•5 years ago
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Updated•5 years ago
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Comment 3•5 years ago
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attachment 9049083 [details] seemed to work well on Wayland. But without stencil, rendering caused flickering.
:gw, do you have any ideas about why the rendering caused flickering without stencil with WebRender on Wayland?
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Comment 4•5 years ago
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Used "GDK_BACKEND=wayland ./mach run" for testing on Ubuntu 18.
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Comment 5•5 years ago
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No, that's unexpected. Like you said, WR doesn't rely on stencil buffer anywhere that I'm aware of. I think it's probably OK to enable stencil for now, though, if that fixes it. I believe normal Gecko on Linux also has stencil enabled (at least, I recall seeing a stencil buffer present in apitrace debugging).
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Comment 6•5 years ago
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Thanks! GLContextProviderEGL::CreateForCompositorWidget() and GLContextEGL::CreateEGLPBufferOffscreenContext() uses a different function for choosing EGLConfig. It seems safer to use CreateForCompositorWidget() one for now.
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Updated•5 years ago
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Pushed by sikeda@mozilla.com: https://hg.mozilla.org/integration/autoland/rev/a0767cb93359 Bug 1532024 - Explicityly create headless context for webrender in RenderCompositorEGL r=jgilbert
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Updated•5 years ago
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Comment 8•5 years ago
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Description
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