[WebRender Android]:- pinch zoom artefact, blank screen area as pinch back in
Categories
(Core :: Graphics: WebRender, defect, P3)
Tracking
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People
(Reporter: mark.paxman99, Unassigned)
References
(Blocks 1 open bug)
Details
User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:67.0) Gecko/20100101 Firefox/67.0
Steps to reproduce:
WebRender Android, Reference Browser
Pinch zoom a page to enlarge text.
Pinch zoom back in to shrink the text, use moderate speed
Only part of the screen is rendered at the top left, there is a large area of blank screen to right and bottom. Which gets updated only a couple of times a second.
I see on two different phones, both Android 7.
Updated•6 years ago
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Updated•6 years ago
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Updated•6 years ago
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Comment 1•6 years ago
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I wonder if this is related to us trying to re-rasterize glyphs at a different resolution. Until we have pathfinder, we should just upsample/downsample the existing glyphs in the texture cache, and then re-render once the updated glyphs have been rasterized by the worker threads.
Comment 2•6 years ago
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Mark, do you still see this problem? From your description in comment 0 it sounds like it might be a thing that's fixed by the zooming changes I made a little while ago.
Yep, fixed. Zooming still very slow, a few fps, but no blank area on zoom in. Thanks.
Comment 4•6 years ago
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Thanks. The slowness should be handled by bug 1531142.
Description
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