Intent to Implement : antialiased clipping in canvas
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Robert Phillips
Oct 13, 2014, 1:10:09 PM10/13/14
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Spec
The spec seems intentionally vague regarding the antialiasing of clips so Blink isn't doing anything non-compliant but performing antialiased draws but aliased clipping seems contrary to end-user expectations.
Summary
Currently, add settings flag to Blink to allow switching the behavior of the canvas element.
Motivation
Many web developers would like antialiased clipping in canvas so there is less aliasing.
Compatibility Risk
It appears that FireFox is already supporting antialiased clips while Opera does not.
Ongoing technical constraints
None.
Will this feature be supported on all five Blink platforms (Windows, Mac, Linux, Chrome OS and Android)?
Yes - Skia supports antialiased clipping on all of these platforms.
OWP launch tracking bug?
Add antialiased clipping to Canvas - https://code.google.com/p/chromium/issues/detail?id=422984
Justin Novosad
Oct 14, 2014, 1:11:50 PM10/14/14
to Robert Phillips, blink-dev
To be clear: there are no web-facing API changes for this feature. It is simply a change in rendering behavior, which will ship as experimental at first.
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