| commit | 9bb0a59074036751da2288a9aa866ef929210b10 | [log] [tgz] |
|---|---|---|
| author | Jim Graham <flar@google.com> | Sun Jun 11 14:14:24 2023 -0700 |
| committer | GitHub <noreply@github.com> | Sun Jun 11 21:14:24 2023 +0000 |
| tree | b7cf8886171983cc6addf8ba40883069ceb1c88e | |
| parent | 788437e41ee0c5f410ff4f2ed87023ab96eca784 [diff] |
Reland "add non-rendering operation culling to DisplayListBuilder" (#41463) (#42584) This reverts commit 2553def911fa26e7ce69769e9e946c90bc023b98. Fixes https://github.com/flutter/flutter/issues/125338 This PR should fix the blendmode/color analysis that caused failures for https://github.com/flutter/engine/pull/41463 as well as the bounds failures for inverted rectangles that caused failures for https://github.com/flutter/engine/pull/42330 (incorporating the fix from https://github.com/flutter/engine/pull/42556). The description from the [previous PR](https://github.com/flutter/engine/pull/41463) updated with the new name of the DL property: --------------------------------- This optimization avoids recording unnecessary render operations that will not affect the output and also eliminates the need for "draw detection" mechanisms like `DlOpSpy` and `CanvasSpy` by remembering if any non-transparent operations were included. The `DlOpSpy` unit tests were updated to check if the results from that object match the new `DisplayList::modifies_transparent_black()` method. Fixes https://github.com/flutter/flutter/issues/125338 In addition, this change will unblock some other Issues: - https://github.com/flutter/flutter/issues/125318 - https://github.com/flutter/flutter/issues/125403
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