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flutter / mirrors / engine / 0226114d5c54c25e5ce02bc2d2e47d2dceb695a7
commit0226114d5c54c25e5ce02bc2d2e47d2dceb695a7[log] [tgz]
authorJim Graham <flar@google.com>Mon Apr 08 17:45:19 2024 -0700
committerGitHub <noreply@github.com>Tue Apr 09 00:45:19 2024 +0000
tree551b594aedd0eb572323f51e706f64a6906f77aa
parentd5be559dd830050ea96cf21e5b31149d2185eb75 [diff]
Use Impeller geometry classes in DLMatrixClipTracker (#51919)

The `DisplayListMatrixClipTracker` class performs the working of maintaining a stack of cull rects and transforms for classes in the engine that require such functionality (such as `DisplayListBuilder`, `DiffContext`, and `LayerStateStack`.

Until now it has been using a mixture of SkMatrix and SkM44 along with an SkRect to maintain this information, but that complexity involves overhead and implementation complexity which complicates future work on these areas.

By reimplementing the class to use Impeller geometry objects, the internal architecture is greatly simplified allowing for easier future maintenance.
13 files changed
tree: 551b594aedd0eb572323f51e706f64a6906f77aa
  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. .clangd
  32. .engine-release.version
  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. LICENSE
  45. README.md
README.md

Flutter Engine

Flutter CI Status OpenSSF Scorecard SLSA 1

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.