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Add SK_USE_LEGACY_BLUR_RASTER staging flag #54314
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Skia's CPU-based blur implementation is inaccurate for sigma < 2, but the Dart imagefilter test uses a case with sigma = 1. In https://skia-review.googlesource.com/c/skia/+/885107, the algorithm is updated to be more accurate when sigma < 2, so the output is more accurate. In order to roll into flutter, the expected color values in the tests will need to be updated with the removal of this staging flag.
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…152868) flutter/engine@0aac603...1bfd06c 2024-08-05 skia-flutter-autoroll@skia.org Roll Dart SDK from d4a2c6a52b4a to bdeaec130e8e (1 revision) (flutter/engine#54344) 2024-08-05 lhkbob@gmail.com Add SK_USE_LEGACY_BLUR_RASTER staging flag (flutter/engine#54314) 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 jacksongardner@google.com,rmistry@google.com,zra@google.com 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#152868) flutter/engine@0aac603...1bfd06c 2024-08-05 skia-flutter-autoroll@skia.org Roll Dart SDK from d4a2c6a52b4a to bdeaec130e8e (1 revision) (flutter/engine#54344) 2024-08-05 lhkbob@gmail.com Add SK_USE_LEGACY_BLUR_RASTER staging flag (flutter/engine#54314) 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 jacksongardner@google.com,rmistry@google.com,zra@google.com 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#152868) flutter/engine@0aac603...1bfd06c 2024-08-05 skia-flutter-autoroll@skia.org Roll Dart SDK from d4a2c6a52b4a to bdeaec130e8e (1 revision) (flutter/engine#54344) 2024-08-05 lhkbob@gmail.com Add SK_USE_LEGACY_BLUR_RASTER staging flag (flutter/engine#54314) 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 jacksongardner@google.com,rmistry@google.com,zra@google.com 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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Skia's CPU-based blur implementation is inaccurate for sigma < 2, but the Dart imagefilter test uses a case with sigma = 1.
In https://skia-review.googlesource.com/c/skia/+/885107, the algorithm is updated to be more accurate when sigma < 2, so the output is more accurate. In order to roll into flutter, the expected color values in the tests will need to be updated with the removal of this staging flag.
If you had to change anything in the flutter/tests repo, include a link to the migration guide as per the breaking change policy.
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