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dart / external / github.com / flutter / engine / 746149965de9d31687096a857f58bec6fd71ec2b
commit746149965de9d31687096a857f58bec6fd71ec2b[log] [tgz]
authorHarry Terkelsen <1961493+harryterkelsen@users.noreply.github.com>Wed Sep 25 16:47:18 2024 -0700
committerGitHub <noreply@github.com>Wed Sep 25 23:47:18 2024 +0000
tree43ca220adb65b497937a316c6a0e63ce6e184d0e
parentf7668afbd88edeae15dc28e1879f0985c366e4d5 [diff]
Reland "[canvaskit] Further improve overlay optimization by splitting pictures" (#55402)

This enhances the overlay optimization by delaying combining pictures to get tighter bounds for the pictures that make up the scene, enabling more sophisticated optimization since we can determine if they intersect with platform views on a per-picture basis.

Fixes https://github.com/flutter/flutter/issues/149863

On a Macbook in Chrome in an example app with an infinite scrolling grid of platform views, this brings the ratio of dropped frames from 93% to 55% (roughly 4 fps to 30 fps).

This is a reland of https://github.com/flutter/engine/pull/54878 with a fix for scenes with pictures that are eventually entirely clipped out.

[C++, Objective-C, Java style guides]: https://github.com/flutter/engine/blob/main/CONTRIBUTING.md#style
10 files changed
tree: 43ca220adb65b497937a316c6a0e63ce6e184d0e
  1. .github/
  2. assets/
  3. benchmarking/
  4. bin/
  5. build/
  6. build_overrides/
  7. ci/
  8. common/
  9. display_list/
  10. docs/
  11. examples/
  12. flow/
  13. flutter_frontend_server/
  14. flutter_vma/
  15. fml/
  16. impeller/
  17. lib/
  18. runtime/
  19. shell/
  20. skia/
  21. sky/
  22. testing/
  23. third_party/
  24. tools/
  25. vulkan/
  26. wasm/
  27. web_sdk/
  28. .ci.yaml
  29. .clang-format
  30. .clang-tidy
  31. .engine-release.version
  32. .git-blame-ignore-revs
  33. .gitattributes
  34. .gitignore
  35. .pylintrc
  36. .style.yapf
  37. analysis_options.yaml
  38. AUTHORS
  39. BUILD.gn
  40. CODEOWNERS
  41. CONTRIBUTING.md
  42. DEPS
  43. Doxyfile
  44. engine.code-workspace
  45. LICENSE
  46. pubspec.yaml
  47. README.md
README.md

Flutter Engine

Flutter CI Status

Flutter is Google's SDK for crafting beautiful, fast user experiences for mobile, web, and desktop from a single codebase. Flutter works with existing code, is used by developers and organizations around the world, and is free and open source.

The Flutter Engine is a portable runtime for hosting Flutter applications. It implements Flutter's core libraries, including animation and graphics, file and network I/O, accessibility support, plugin architecture, and a Dart runtime and compile toolchain. Most developers will interact with Flutter via the Flutter Framework, which provides a modern, reactive framework, and a rich set of platform, layout and foundation widgets.

If you want to run/contribute to Flutter Web engine, more tooling can be found at felt. This is a tool written to make web engine development experience easy.

If you are new to Flutter, then you will find more general information on the Flutter project, including tutorials and samples, on our Web site at Flutter.dev. For specific information about Flutter's APIs, consider our API reference which can be found at the docs.flutter.dev.

Flutter is a fully open source project, and we welcome contributions. Information on how to get started can be found at our contributor guide.