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@flar flar commented Jun 2, 2023

Reverts #42330

Some golden failures down the line were discovered in internal testing. See b/285539451

@flar flar added the autosubmit Merge PR when tree becomes green via auto submit App label Jun 2, 2023
@auto-submit auto-submit bot merged commit 2553def into main Jun 2, 2023
@auto-submit auto-submit bot deleted the revert-42330-DL-builder-detect-nop-2 branch June 2, 2023 21:59
engine-flutter-autoroll added a commit to engine-flutter-autoroll/flutter that referenced this pull request Jun 2, 2023
engine-flutter-autoroll added a commit to engine-flutter-autoroll/flutter that referenced this pull request Jun 2, 2023
engine-flutter-autoroll added a commit to engine-flutter-autoroll/flutter that referenced this pull request Jun 3, 2023
engine-flutter-autoroll added a commit to engine-flutter-autoroll/flutter that referenced this pull request Jun 3, 2023
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flar commented Jun 3, 2023

Thanks to some help from @jason-simmons the root cause was found. The test code was rendering a "backwards rectangle" (i.e. Left > Right or Top > Bottom) which has been an undocumented feature of the ui.Canvas methods for some time. The DisplayList-driven engine code would output the right thing because both Skia and Impeller will render such rectangles sorted, but the internal bounds code in DisplayList would accumulate them incorrectly as it assumed that such rectangles were "empty". See flutter/flutter#128159

goderbauer pushed a commit to engine-flutter-autoroll/flutter that referenced this pull request Jun 3, 2023
goderbauer pushed a commit to flutter/flutter that referenced this pull request Jun 3, 2023
…128158)

flutter/engine@8769e9c...5429372

2023-06-03 jonahwilliams@google.com [Impeller] Fix 1-d grid computation
for compute (flutter/engine#42516)
2023-06-02 skia-flutter-autoroll@skia.org Roll Fuchsia Linux SDK from
PuYA-6NVHeHPlkCdk... to VtLnfLmVda1_h1AtM... (flutter/engine#42529)
2023-06-02 chris@bracken.jp [macOS] Top-left origin for PlatformView
container (flutter/engine#42523)
2023-06-02 skia-flutter-autoroll@skia.org Manual roll Dart SDK from
9d8df2a5210b to d198f84f5e4e (1 revision) (flutter/engine#42527)
2023-06-02 flar@google.com Revert "Reland "add non-rendering operation
culling to DisplayListBuilder" (#41463)" (flutter/engine#42525)
2023-06-02 godofredoc@google.com Move benchmarks no upload to staging.
(flutter/engine#42524)
2023-06-02 mdebbar@google.com [web] Support platform view creation
params (flutter/engine#42255)
2023-06-02 goderbauer@google.com MultiView changes for dart:ui
(flutter/engine#42493)

Also rolling transitive DEPS:
  fuchsia/sdk/core/linux-amd64 from PuYA-6NVHeHP to VtLnfLmVda1_

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 jonahwilliams@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://bugs.chromium.org/p/skia/issues/entry?template=Autoroller+Bug

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+doc/main/autoroll/README.md
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