Dan Field 83b6fa4ff7 [Impeller] Avoid encoding metal commands while the GPU is unavailable when decoding images. (flutter/engine#42349) ...

Fixes https://github.com/flutter/flutter/issues/126878

This disables device private upload on iOS when backgrounded, and disables mipmap generation when backgrounded.

We don't have a good way to test the core problem in this repo because it only reproduces on physical iOS hardware - simulators don't really care if you do this stuff in the background.

I'll write a devicelab test in the framework to capture this. In the mean time it can be reviewed.

We could consider making the IOManager a shared_ptr instead of having an fml::WeakPtr and that'd clean up some of the extra arguments to engine construction - or we could consider vending the sync switch from impeller::Context unconditionally, but it's pretty iOS specific...

2023-05-26 18:46:33 +00:00

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src/flutter

[Impeller] Avoid encoding metal commands while the GPU is unavailable when decoding images. (flutter/engine#42349)

2023-05-26 18:46:33 +00:00