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[Impeller] AHB swapchain has synchronization issue on present. #148139

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jonahwilliams opened this issue May 10, 2024 · 0 comments
Open

[Impeller] AHB swapchain has synchronization issue on present. #148139

jonahwilliams opened this issue May 10, 2024 · 0 comments
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e: impeller Impeller rendering backend issues and features requests P2 Important issues not at the top of the work list team-engine Owned by Engine team triaged-engine Triaged by Engine team

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@jonahwilliams
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Disabling in flutter/engine#52713

On the drawpoints macrobenchmark app, repeatidly toggling the performance overlay causes graphical artifacts. We tried increasing the host buffer pool and removing buffer recycling and the issue persisted. This indicates that it is a potential problem on the synchronization fence when presenting.

At present, we're unsure of the correct barrier, or if we need to synchronize on the CPU (though it seems like that would defeat the purpose?).
@jonahwilliams jonahwilliams added e: impeller Impeller rendering backend issues and features requests team-engine Owned by Engine team P2 Important issues not at the top of the work list triaged-engine Triaged by Engine team labels May 10, 2024
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e: impeller Impeller rendering backend issues and features requests P2 Important issues not at the top of the work list team-engine Owned by Engine team triaged-engine Triaged by Engine team
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