Open
Bug 1837870
Opened 2 years ago
Updated 2 years ago
Canvas: visual glitches when drawing a line with stroke with D2D
Categories
(Core :: Graphics: Canvas2D, defect)
Tracking
()
NEW
People
(Reporter: benni.vetter, Unassigned)
Details
Attachments
(1 file)
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20.47 KB,
image/png
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Details |
2023-06-11-line-bug.png
Steps:
(On Windows 10. Can't reproduce on macOS)
- create a canvas with a certain size (e.g. 700x326)
- fill the background with white
- globalCompositeOperation = 'difference'
- draw a certain line (e.g. [[650,132],[531,160],[593,228]] ) with strokeStyle 'white'
(or visit: https://bitbof.github.io/browser-bug-demos/2023-06-11-firefox-line-bug/)
Actual:
A horizontal line appears from the left corner of the canvas reaching to the second point of line. (see screenshot)
Expected:
It draws the line without artifacts.
Note: With different shapes, you could provoke vertical lines.
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Comment 1•2 years ago
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The Bugbug bot thinks this bug should belong to the 'Core::Graphics: Canvas2D' component, and is moving the bug to that component. Please correct in case you think the bot is wrong.
Component: Untriaged → Graphics: Canvas2D
Product: Firefox → Core
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Comment 2•2 years ago
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I can repro wit D2d-canvas.
I cant repro with gpu-canvas.
Depends on: gpu-canvas
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Updated•2 years ago
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Status: UNCONFIRMED → NEW
Ever confirmed: true
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Updated•2 years ago
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Severity: -- → S4
No longer depends on: gpu-canvas
Summary: Canvas: visual glitches when drawing a line with stroke → Canvas: visual glitches when drawing a line with stroke with D2D
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Description
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