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android / platform / development / 1d74cf96d / . / tools / winscope
tree: 45e78cf26b7d93eb3c57adf96b5f149c50afd74c [path history] [tgz]
  1. adb_proxy/
  2. libs/
  3. loaders/
  4. spec/
  5. src/
  6. static/
  7. tests/
  8. .babelrc
  9. .gitignore
  10. package.json
  11. README.md
  12. trace.sh
  13. vue.config.js
  14. webpack.config.js
  15. webpack.spec.config.js
  16. yarn.lock
tools/winscope/README.md

Tool for visualizing window manager traces

Developing WinScope

When the trace is enabled, Window Manager and Surface Flinger capture and save current state to a file at each point of interest. frameworks/base/core/proto/android/server/windowmanagertrace.proto and frameworks/native/services/surfaceflinger/layerproto/layerstrace.proto contain the proto definitions for their internal states.

Checking out code and setting up environment

Building & testing changes

  • Navigate to development/tools/winscope
  • Run yarn run dev

Building with internal extensions

Internal paths in vendor/ which are not available in AOSP must be replaced by stub files. See getWaylandSafePath for an example