6112f0b068
In macOS 14 the font smoothing behavior was changed. On macOS 13 and lower requesting smoothing would either do nothing or apply fake bolding and subpixel coverage, depending on a user setting. On macOS 14 this same user setting causes smoothing to either do nothing or apply fake bolding. Skia had been checking for subpixel coverage to know whether to ask for smoothing, but since subpixel coverage is no longer provided Skia won't ask for smoothing. However, some still want to see the fake bolding. This changes behavior in Skia to detect if requesting smoothing does not change the rendering, if it changes the rendering, or if it changes the rendering and applies subpixel coverage. The code which conflated the changing of rendering and subpixel coverage is updated to check for the appropriate conditions. This has the odd effect of making the setLCDRenderText setting in Skia on macOS 14 not actually turn on subpixel coverage but instead apply fake-bolding to closest match the behavior of the request on previous versions of macOS. Bug: chromium:858861 Change-Id: Ic7ff22e171a15be20e0bcccb10b0c4798cba8b72 Reviewed-on: https://skia-review.googlesource.com/157566 Reviewed-by: Mike Klein <mtklein@google.com> Commit-Queue: Ben Wagner <bungeman@google.com> |
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Skia is a complete 2D graphic library for drawing Text, Geometries, and Images. See full details, and build instructions, at https://skia.org.