Bug 20174
| Summary: | weird faint lines on canvas when drawing lines | ||
|---|---|---|---|
| Product: | WebKit | Reporter: | Ian 'Hixie' Hickson <ian> |
| Component: | WebCore Misc. | Assignee: | Nobody <webkit-unassigned> |
| Status: | NEW | ||
| Severity: | Normal | CC: | mdelaney7, oliver |
| Priority: | P2 | Keywords: | NeedsReduction |
| Version: | 528+ (Nightly build) | ||
| Hardware: | Mac | ||
| OS: | OS X 10.5 | ||
| URL: | http://www.whatwg.org/issues/data.html | ||
Ian 'Hixie' Hickson
STEPS TO REPRODUCE
1. load http://www.whatwg.org/issues/data.html
2. zoom in on the top left
ACTUAL RESULTS
faint lines
EXPECTED RESULTS
just the main line
If it's the fault of a bug in my script I apologise in advance. But I don't think it is.
| Attachments | ||
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| Add attachment proposed patch, testcase, etc. |
Ian 'Hixie' Hickson
also visible on the blue line where the main line jumps up for a bit.
Oliver Hunt
Slightly more minimal testcase at http://nerget.com/bugs/bug20174.html
The issue is the 'dots' for somereason we occasionally get subpixel lines being drawn back to the origin. I suspect this is a CG-ism, but it'd be good to know if it occurs in the gtk/qt ports.