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[Impeller] Android text magnifier not offsetting correctly with coverage hint optimization. #130355

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[Impeller] Android text magnifier not offsetting correctly with coverage hint optimization.#130355
flutter/engine
#43943
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bdero
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P1High-priority issues at the top of the work liste: impellerImpeller rendering backend issues and features requestsr: fixedIssue is closed as already fixed in a newer versionteam-engineOwned by Engine teamtriaged-engineTriaged by Engine team
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@bdero
bdero
opened on Jul 11, 2023

The EntityPass subpass coverage computation as well as the Aiks bounds tracking do not account for how subpass matrix filters modify the coverage of subpasses.

@jason-simmons first noticed this problem in the form of the Android material text magnifier displaying at the wrong offset.

I added a minimal repro for the underlying issues here: flutter/engine#43484

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P1High-priority issues at the top of the work liste: impellerImpeller rendering backend issues and features requestsr: fixedIssue is closed as already fixed in a newer versionteam-engineOwned by Engine teamtriaged-engineTriaged by Engine team

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