Jonah Williams

widgets.image_test.missing.2 . The text should be rendering as boxes but it looks like its overlapping oddly... 

Several golden tests that have hairline strokes do not render correctly when running with Impeller. 

In the golden tests painting.decoration_image.lerp.2 and painting.decoration_image.lerp.1 , the Impeller result looks very different from the Skia result. Not sure if this happens on real devices. 

[iOS] What is the point of the transform mutators?

1

I was experimenting with the impact of mutators on platform view performance. I decided to completely disable them to see what happens: https://github.com/flutter/engine/pull/50711 Funny enough, the ads example app still...

[Impeller] attempt to get validation errors from CI unittests.

2

Enables Vulkan validation layers for macOS and linux builds, enables macOS validation for macOS builds. Fixes https://github.com/flutter/flutter/issues/144967 There may still be remaining issues with macOS validation, I need to verify...

[Impeller] fix heap selection process for YUV textures.

5

This does not fix the emulator weirdness! Today we automatically select the first memory type index requested by an AHB. The device in question may lack that memory type index,...

[Impeller] Cache tessellated data on impeller::Path objects.

13

For cases where we don't think we can make tessellation faster, fallback to caching the tessellated data so that at least subsequent frames are fast. This helps https://github.com/flutter/flutter/issues/140257 As the...

Cleanups to the vk::ImageUsageFlagBits * add unit tests * remove input attachment from depth stencil * remove defensive checks

[Android] ArrayList is faster than LinkedList for reasonable N.

2

Fixes https://github.com/flutter/flutter/issues/143721 Java LinkedList is just slooow.

[Impeller] Allow setting the contents of a Texture subregion.

3

Introduce `IRect region` an new argument to Texture::SetContents that allows a subregion of the image to be updated. I plan to use this to improve the performance of the glyph...