[Webkit-unassigned] [Bug 231796] New: Svg images in canvas get blurred

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Thu Oct 14 22:50:37 PDT 2021


            Bug ID: 231796
           Summary: Svg images in canvas get blurred
           Product: WebKit
           Version: Safari 15
          Hardware: Mac (Intel)
                OS: macOS 11
            Status: NEW
          Severity: Critical
          Priority: P2
         Component: Canvas
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: roman.n at miro.com
                CC: dino at apple.com

Created attachment 441334

  --> https://bugs.webkit.org/attachment.cgi?id=441334&action=review

rendered svg in the chrome

Hi! We found the problem with drawing SVG images on canvas. It happens with the experimental flag "GPU Process: Canvas rendering" which is set up by default.
Seems like the new version of Safari with this flag rasterizes SVG before applying canvas context transformation. An example is here https://codepen.io/nikitindev/pen/GRvKmYo
This code works fine in the latest Chrome and in Safari 14 (with default settings), but in the Safari 15 rendered SVG gets blurred.

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