Jonah Williams ac08224a56 [Impeller] reland foreground blend optimizaiton, fix advanced blend optimization. (flutter/engine#51938) ...

Reverted in https://github.com/flutter/engine/pull/51679 due to https://github.com/flutter/flutter/issues/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.

2024-04-05 20:03:43 +00:00

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src/flutter

[Impeller] reland foreground blend optimizaiton, fix advanced blend optimization. (flutter/engine#51938)

2024-04-05 20:03:43 +00:00