Add caching to DrawShapedText

[MichaelRumpler]

Description of Change

This enables a user to set a cache duration. When set to a value > 0, it caches the SKShaper and the SKShaper.Result thus repeated calls with the same font and/or text are faster.

Bugs Fixed

• Fixes [FEATURE] Add caching in DrawShapedText #3032

API Changes

Added:

• public static void SetShaperCacheDuration(this SKCanvas canvas, uint milliseconds)

Behavioral Changes

If the cache duration was set to a value bigger than zero, DrawShapedText will cache the SKShaper and the SKShaper.Result for that amount of milliseconds. Therefore repeated calls with the same SKFont and/or string will be faster.

If the cache duration is set to 0, then the cache will be cleared, all contained SKShaper objects disposed and caching will be disabled.

The default cache duration is 0. So if SetShaperCacheDuration is never called, DrawShapedText works as before.

Required skia PR

None.

PR Checklist

• Has tests (if omitted, state reason in description)
• Rebased on top of main at time of PR
• Merged related skia PRs
• Changes adhere to coding standard
• Updated documentation

[dotnet-policy-service]

Hey there @MichaelRumpler! Thank you so much for your PR! Someone from the team will get assigned to your PR shortly and we'll get it reviewed.

[mattleibow]

/azp run

[azure-pipelines]

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