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android / platform / development / 8923f5323 / . / tools / winscope
tree: c30ae5cdfb4fb3662e76bbc0513b3482433b78b0 [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

Update IntDefMapping

  • Build framework-all module and a preprocessor will generate the latest IntDefMapping. From the ANDROID_ROOT run:
. build/envsetup.sh
m framework-all
  • Copy the generated intDefMapping.json file to the prebuilts repo.
cp
./out/soong/.intermediates/frameworks/base/framework-all/android_common/javac/classes/com/android/winscope/intDefMapping.json
./prebuilts/misc/common/winscope/intDefMapping.json
  • Upload the changes.
cd ./prebuilts/misc/common/winscope
repo start intdef-update
git commit -am "Update intdef mapping" "Test: N/A"
repo upload --cbr .

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