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Always save canvas to prevent ClipRects from drawing on top of higher layers. #6199
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liyuqian
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Sep 7, 2018
flow/layers/clip_rect_layer.cc
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| @@ -41,7 +41,7 @@ void ClipRectLayer::Paint(PaintContext& context) const { | |||
| TRACE_EVENT0("flutter", "ClipRectLayer::Paint"); | |||
| FML_DCHECK(needs_painting()); | |||
|
|
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| SkAutoCanvasRestore save(&context.canvas, clip_behavior_ != Clip::hardEdge); | |||
| SkAutoCanvasRestore save(&context.canvas, true); | |||
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Ah, yes, this was my mistake.
It should be
SkAutoCanvasRestore save(&context.canvas, true);
context.canvas.clipRect(paint_bounds(), clip_behavior_ != Clip::hardEdge);
BTW, can you write a golden test in flutter/flutter to verify this bug and ensure that we won't regress in the future?
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Ahh that version makes a lot more sense! Yeah, I'll get a golden test in.
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flutter/engine@58a1894...93dac2a git log 58a1894..93dac2a --no-merges --oneline 93dac2a Always save canvas and correctly pass antialias boolean in ClipRects. (flutter/engine#6199) 16c56af Roll src/third_party/skia 300b6197e344..094b3eaf479c (17 commits) (flutter/engine#6200) 2af72eb Don't map iOS reduce motion to disabled animations (flutter/engine#6194) 687cf08 Add option to invert paint colors to be used for smart invert accessibility on iOS (flutter/engine#6176) 85d47fb Accept file URIs as parameters in the RunInView service RPC (flutter/engine#6191) 5a19d76 Roll src/third_party/skia 0b80e62a14ae..300b6197e344 (9 commits) (flutter/engine#6198) f33615c Roll src/third_party/skia b090b2b26803..0b80e62a14ae (2 commits) (flutter/engine#6197) 75f6bdf Revert "Dart SDK roll for 2018/09/06 (flutter#6189)" (flutter/engine#6192) b09563b Roll src/third_party/skia 106d04e907c1..b090b2b26803 (1 commits) (flutter/engine#6193) e164e83 Reset the raster cache when the compositor context is created. (flutter/engine#6150) f02fc8c Dart SDK roll for 2018/09/06 (flutter/engine#6189) The AutoRoll server is located here: https://autoroll.skia.org/r/flutter-engine-flutter-autoroll Documentation for the AutoRoller is here: https://skia.googlesource.com/buildbot/+/master/autoroll/README.md If the roll is causing failures, please contact the current sheriff, who should be CC'd on the roll, and stop the roller if necessary.
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flutter/engine@58a1894...e27a2e9 git log 58a1894..e27a2e9 --no-merges --oneline e27a2e9 Dart SDK roll for 2018/09/07 (flutter/engine#6201) 93dac2a Always save canvas and correctly pass antialias boolean in ClipRects. (flutter/engine#6199) 16c56af Roll src/third_party/skia 300b6197e344..094b3eaf479c (17 commits) (flutter/engine#6200) 2af72eb Don't map iOS reduce motion to disabled animations (flutter/engine#6194) 687cf08 Add option to invert paint colors to be used for smart invert accessibility on iOS (flutter/engine#6176) 85d47fb Accept file URIs as parameters in the RunInView service RPC (flutter/engine#6191) 5a19d76 Roll src/third_party/skia 0b80e62a14ae..300b6197e344 (9 commits) (flutter/engine#6198) f33615c Roll src/third_party/skia b090b2b26803..0b80e62a14ae (2 commits) (flutter/engine#6197) 75f6bdf Revert "Dart SDK roll for 2018/09/06 (flutter#6189)" (flutter/engine#6192) b09563b Roll src/third_party/skia 106d04e907c1..b090b2b26803 (1 commits) (flutter/engine#6193) e164e83 Reset the raster cache when the compositor context is created. (flutter/engine#6150) f02fc8c Dart SDK roll for 2018/09/06 (flutter/engine#6189) The AutoRoll server is located here: https://autoroll.skia.org/r/flutter-engine-flutter-autoroll Documentation for the AutoRoller is here: https://skia.googlesource.com/buildbot/+/master/autoroll/README.md If the roll is causing failures, please contact the current sheriff, who should be CC'd on the roll, and stop the roller if necessary.
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flutter/engine@58a1894...bf96dbe git log 58a1894..bf96dbe --no-merges --oneline bf96dbe Revert "Some cleanups enabled by removing support for Dart. (flutter#5621)" (flutter/engine#6205) 3358115 Roll src/third_party/skia 094b3eaf479c..2810c856dfa2 (6 commits) (flutter/engine#6203) 4c2448d Some cleanups enabled by removing support for Dart. (flutter/engine#5621) e27a2e9 Dart SDK roll for 2018/09/07 (flutter/engine#6201) 93dac2a Always save canvas and correctly pass antialias boolean in ClipRects. (flutter/engine#6199) 16c56af Roll src/third_party/skia 300b6197e344..094b3eaf479c (17 commits) (flutter/engine#6200) 2af72eb Don't map iOS reduce motion to disabled animations (flutter/engine#6194) 687cf08 Add option to invert paint colors to be used for smart invert accessibility on iOS (flutter/engine#6176) 85d47fb Accept file URIs as parameters in the RunInView service RPC (flutter/engine#6191) 5a19d76 Roll src/third_party/skia 0b80e62a14ae..300b6197e344 (9 commits) (flutter/engine#6198) f33615c Roll src/third_party/skia b090b2b26803..0b80e62a14ae (2 commits) (flutter/engine#6197) 75f6bdf Revert "Dart SDK roll for 2018/09/06 (flutter#6189)" (flutter/engine#6192) b09563b Roll src/third_party/skia 106d04e907c1..b090b2b26803 (1 commits) (flutter/engine#6193) e164e83 Reset the raster cache when the compositor context is created. (flutter/engine#6150) f02fc8c Dart SDK roll for 2018/09/06 (flutter/engine#6189) The AutoRoll server is located here: https://autoroll.skia.org/r/flutter-engine-flutter-autoroll Documentation for the AutoRoller is here: https://skia.googlesource.com/buildbot/+/master/autoroll/README.md If the roll is causing failures, please contact the current sheriff, who should be CC'd on the roll, and stop the roller if necessary.
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flutter/engine@58a1894...b952331 git log 58a1894..b952331 --no-merges --oneline b952331 Allow embedders to specify a custom GL proc address resolver. (flutter/engine#6204) bf96dbe Revert "Some cleanups enabled by removing support for Dart. (flutter#5621)" (flutter/engine#6205) 3358115 Roll src/third_party/skia 094b3eaf479c..2810c856dfa2 (6 commits) (flutter/engine#6203) 4c2448d Some cleanups enabled by removing support for Dart. (flutter/engine#5621) e27a2e9 Dart SDK roll for 2018/09/07 (flutter/engine#6201) 93dac2a Always save canvas and correctly pass antialias boolean in ClipRects. (flutter/engine#6199) 16c56af Roll src/third_party/skia 300b6197e344..094b3eaf479c (17 commits) (flutter/engine#6200) 2af72eb Don't map iOS reduce motion to disabled animations (flutter/engine#6194) 687cf08 Add option to invert paint colors to be used for smart invert accessibility on iOS (flutter/engine#6176) 85d47fb Accept file URIs as parameters in the RunInView service RPC (flutter/engine#6191) 5a19d76 Roll src/third_party/skia 0b80e62a14ae..300b6197e344 (9 commits) (flutter/engine#6198) f33615c Roll src/third_party/skia b090b2b26803..0b80e62a14ae (2 commits) (flutter/engine#6197) 75f6bdf Revert "Dart SDK roll for 2018/09/06 (flutter#6189)" (flutter/engine#6192) b09563b Roll src/third_party/skia 106d04e907c1..b090b2b26803 (1 commits) (flutter/engine#6193) e164e83 Reset the raster cache when the compositor context is created. (flutter/engine#6150) f02fc8c Dart SDK roll for 2018/09/06 (flutter/engine#6189) The AutoRoll server is located here: https://autoroll.skia.org/r/flutter-engine-flutter-autoroll Documentation for the AutoRoller is here: https://skia.googlesource.com/buildbot/+/master/autoroll/README.md If the roll is causing failures, please contact the current sheriff, who should be CC'd on the roll, and stop the roller if necessary.
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flutter/engine@58a1894...bf3c224 git log 58a1894..bf3c224 --no-merges --oneline bf3c224 Roll src/third_party/skia 2810c856dfa2..a3dc329d1db1 (1 commits) (flutter/engine#6206) b952331 Allow embedders to specify a custom GL proc address resolver. (flutter/engine#6204) bf96dbe Revert "Some cleanups enabled by removing support for Dart. (flutter#5621)" (flutter/engine#6205) 3358115 Roll src/third_party/skia 094b3eaf479c..2810c856dfa2 (6 commits) (flutter/engine#6203) 4c2448d Some cleanups enabled by removing support for Dart. (flutter/engine#5621) e27a2e9 Dart SDK roll for 2018/09/07 (flutter/engine#6201) 93dac2a Always save canvas and correctly pass antialias boolean in ClipRects. (flutter/engine#6199) 16c56af Roll src/third_party/skia 300b6197e344..094b3eaf479c (17 commits) (flutter/engine#6200) 2af72eb Don't map iOS reduce motion to disabled animations (flutter/engine#6194) 687cf08 Add option to invert paint colors to be used for smart invert accessibility on iOS (flutter/engine#6176) 85d47fb Accept file URIs as parameters in the RunInView service RPC (flutter/engine#6191) 5a19d76 Roll src/third_party/skia 0b80e62a14ae..300b6197e344 (9 commits) (flutter/engine#6198) f33615c Roll src/third_party/skia b090b2b26803..0b80e62a14ae (2 commits) (flutter/engine#6197) 75f6bdf Revert "Dart SDK roll for 2018/09/06 (flutter#6189)" (flutter/engine#6192) b09563b Roll src/third_party/skia 106d04e907c1..b090b2b26803 (1 commits) (flutter/engine#6193) e164e83 Reset the raster cache when the compositor context is created. (flutter/engine#6150) f02fc8c Dart SDK roll for 2018/09/06 (flutter/engine#6189) The AutoRoll server is located here: https://autoroll.skia.org/r/flutter-engine-flutter-autoroll Documentation for the AutoRoller is here: https://skia.googlesource.com/buildbot/+/master/autoroll/README.md If the roll is causing failures, please contact the current sheriff, who should be CC'd on the roll, and stop the roller if necessary.
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Previously, the engine did not properly pass the AA flag on ClipRect.clipBehavior. flutter/engine#6199 fixes this and enables AA. However, default AA on clipRects has caused severe regressions in benchmark performance. To maintain expected performance, we should now default the clipBehavior to hardEdge to disable default AA. This is consistent with any flutter projects that did not previously explicitly set the clipBehavior and should not change app appearance.
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When ClipRects have hardEdge clipBehavior, the cliprect will draw on top of the performance overlay. This prevents that by always saving when doing SkAutoCanvasRestore.
Fixes flutter/flutter#21095