tree b6c1170fd6c655e475f4708a59ecd40b828a6eeb
parent fdae5f50c93d8ef989ace6ef48438d8272d6b136
author Jonah Williams <jonahwilliams@google.com> 1702589849 -0800
committer GitHub <noreply@github.com> 1702589849 +0000
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[Impeller] distinguish between no clear color and transparent black clear color. (#49038)

If we clear to transparent black, we're not forcing the pass to be constructed. Change the entity pass API so that we can tell the difference between clearing transparent black and not having a clear color.

In https://github.com/flutter/flutter/issues/139571 , the app is creating a layer that is clearing to a transparent color, which is getting skipped. That invalid texture is fed into a blend which produces either black or magenta error texture.

Fixes https://github.com/flutter/flutter/issues/139571