[Webkit-unassigned] [Bug 259306] REGRESSION (Safari 17 beta): WebGL contexts drawn into canvas contexts are upside-down when premultipliedAlpha is false

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Wed Jul 19 12:45:30 PDT 2023


https://bugs.webkit.org/show_bug.cgi?id=259306

--- Comment #3 from Dean Jackson <dino at apple.com> ---
Note that the comments in the test case are slightly wrong.

// 2D canvas is rendered upside-down if premultipliedAlpha is set to true above

This should be "is set to false above".

The description in this report is correct though. When premultipliedAlpha is false (not the default value), the render from GL into 2D is upside down.

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