This repository was archived by the owner on Feb 25, 2025. It is now read-only.
[Impeller] reland foreground blend optimizaiton, fix advanced blend optimization. #51938
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Reverted in #51679 due to flutter/flutter#144109
The foreground blend cases where using the coverage rect to determine the resulting position and UVs. this only worked if the CTM was scale translate, in rotation/skew/perspective cases the coverage rect is incorrect for choosing the texture coordinate position. Instead of positioning w/ coverage, use the snapshot transform which includes the scale/translation and correctly applies other transforms.