[Webkit-unassigned] [Bug 227465] New: stroking non-anti-aliased text on canvas on macOS ARM when accelerated canvas drawing is enabled ends up using anti-aliasing

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Mon Jun 28 15:17:35 PDT 2021


https://bugs.webkit.org/show_bug.cgi?id=227465

            Bug ID: 227465
           Summary: stroking non-anti-aliased text on canvas on macOS ARM
                    when accelerated canvas drawing is enabled ends up
                    using anti-aliasing
           Product: WebKit
           Version: WebKit Local Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Layout and Rendering
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: heycam at apple.com
                CC: bfulgham at webkit.org, simon.fraser at apple.com,
                    zalan at apple.com

When drawing text using an Ahem font on macOS, we disable anti-aliasing.  But on ARM, if stroking Ahem glyphs on canvas when accelerated canvas drawing is enabled, the stroke erroneously ends up anti-aliased.

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