hellohuanlin d1f28a74ae [ios][platform_view] Use CAShapeLayer as the mask to avoid software rendering (flutter/engine#53072) ...

This PR uses `CAShapeLayer` as the mask to avoid software rendering. 

I kept `UIView` as the mask, so that we can measure just the improvement related to avoiding software rendering. This also allows me to land this change sooner. I created [a separate issue](https://github.com/flutter/flutter/issues/149212) to track removing UIView as the mask. 

Note: the previous behavior seems to be incorrect (or at least not pixel perfect). This PR fixed it. See comments. 

See design doc: https://docs.google.com/document/d/1TqG_N4GK_qctuk73Gk3zOdAiILUrwMqxoCMgroK_AeA/edit?resourcekey=0-jUiidfzIS642ngG2w9vSUA&tab=t.0

*List which issues are fixed by this PR. You must list at least one issue.*

Fixes https://github.com/flutter/flutter/issues/142813
Fixes https://github.com/flutter/flutter/issues/142830

*If you had to change anything in the [flutter/tests] repo, include a link to the migration guide as per the [breaking change policy].*

[C++, Objective-C, Java style guides]: https://github.com/flutter/engine/blob/main/CONTRIBUTING.md#style

2024-06-05 02:40:23 +00:00

..

src/flutter

[ios][platform_view] Use CAShapeLayer as the mask to avoid software rendering (flutter/engine#53072)

2024-06-05 02:40:23 +00:00