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android / platform / development / 85252aed4 / . / tools / winscope
tree: 9ee0cb8f42c24da44dd66be2dc896033d0ceb16f [path history] [tgz]
  1. adb_proxy/
  2. loaders/
  3. src/
  4. tests/
  5. .babelrc
  6. .gitignore
  7. package.json
  8. README.md
  9. trace.sh
  10. webpack.config.js
  11. 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