Jonah Williams f821ed1550 [Impeller] Fix EntityPassTarget::Flip with implict MSAA. (flutter/engine#47701)
This allows backdrop filters to work with GLES and MSAA.

The swap implementation was only swapping out the resolve texture. But with implicit msaa resolve, the resolve texture and msaa texture are the same - so both need to be swapped.

Fixes https://github.com/flutter/flutter/issues/137301
2023-11-06 18:56:07 +00:00
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