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[Impeller] Reland 2: Implement draw order optimization. #54268
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Original PR: flutter#54136 Revert PR: flutter#54067
This reverts commit 6919636.
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…152663) flutter/engine@f546fef...4dc94d6 2024-08-01 [email protected] [Impeller] Reland 2: Implement draw order optimization. (flutter/engine#54268) If this roll has caused a breakage, revert this CL and stop the roller using the controls here: https://autoroll.skia.org/r/flutter-engine-flutter-autoroll Please CC [email protected],[email protected],[email protected] on the revert to ensure that a human is aware of the problem. To file a bug in Flutter: https://github.com/flutter/flutter/issues/new/choose To report a problem with the AutoRoller itself, please file a bug: https://issues.skia.org/issues/new?component=1389291&template=1850622 Documentation for the AutoRoller is here: https://skia.googlesource.com/buildbot/+doc/main/autoroll/README.md
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Reason for revert: A downstream app reproduced and issue where certain draws are getting drawn with an incorrect scissor and getting clipped out. (@jason-simmons tracked the issue to this commit) |
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…ter#54268)" This reverts commit 4dc94d6.
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…) (#54325) Manual revert of #54268, since the time expired for automatic reverting. @jason-simmons found this patch to be causing a regression in a downstream app. Some draws are getting clipped away, and disabling the scissor fixes it. So there is likely still a case not being handled correctly with the clip replay or subpass draw deferral behavior.
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…lutter#152663) flutter/engine@f546fef...4dc94d6 2024-08-01 [email protected] [Impeller] Reland 2: Implement draw order optimization. (flutter/engine#54268) If this roll has caused a breakage, revert this CL and stop the roller using the controls here: https://autoroll.skia.org/r/flutter-engine-flutter-autoroll Please CC [email protected],[email protected],[email protected] on the revert to ensure that a human is aware of the problem. To file a bug in Flutter: https://github.com/flutter/flutter/issues/new/choose To report a problem with the AutoRoller itself, please file a bug: https://issues.skia.org/issues/new?component=1389291&template=1850622 Documentation for the AutoRoller is here: https://skia.googlesource.com/buildbot/+doc/main/autoroll/README.md
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…lutter#152663) flutter/engine@f546fef...4dc94d6 2024-08-01 [email protected] [Impeller] Reland 2: Implement draw order optimization. (flutter/engine#54268) If this roll has caused a breakage, revert this CL and stop the roller using the controls here: https://autoroll.skia.org/r/flutter-engine-flutter-autoroll Please CC [email protected],[email protected],[email protected] on the revert to ensure that a human is aware of the problem. To file a bug in Flutter: https://github.com/flutter/flutter/issues/new/choose To report a problem with the AutoRoller itself, please file a bug: https://issues.skia.org/issues/new?component=1389291&template=1850622 Documentation for the AutoRoller is here: https://skia.googlesource.com/buildbot/+doc/main/autoroll/README.md
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Attempt 1: #54136
Revert 1: #54067
Attempt 2: #54215
Revert 2: #54261
This time for sure!
Includes fix for the golden failures seen here: https://flutter-gold.skia.org/search?issue=152633&crs=github&patchsets=2&corpus=flutter
The break in the clear color counter was in the wrong spot, so the counter wasn't breaking when coming across subpass elements (which are never considered to be clear-colors right now). This caused the counter to continue counting entities after subpasses sometimes, which can cause the count to end up too high and skip over non-clear color elements.
Description
For each clip scope, draw opaque items in reverse order and translucent/backdrop-independent items in their original order afterwards. Clips are treated as translucent by the parent scope.
Respects clips, subpass collapse, and the clear color optimization.
Local new_gallery before/after (iPhone 12 mini):