SkQP

Motivation: Test an Android device‘s GPU and OpenGLES & Vulkan drivers with Skia and Skia’s existing unit & rendering tests.

How To Use SkQP on your Android device:

1. To build SkQP you need to install the Android NDK.

2. Checkout depot_tools and Skia, then go to Skia's source directory:

   export PATH="${DEPOT_TOOLS_PATH}:$PATH"
   cd $SKIA_SOURCE_DIRECTORY
   

3. Configure and build Skia for your device's architecture:

   arch='arm64'  # Also valid: 'arm', 'x68', 'x64'
   android_ndk="${HOME}/ndk"  # Or wherever you installed the NDK.
   mkdir -p out/${arch}-rel
   cat > out/${arch}-rel/args.gn << EOF
       ndk = "$android_ndk"
       ndk_api = 24
       target_cpu = "$arch"
       skia_embed_resources = true
       is_debug = false
   EOF
   tools/git-sync-deps
   bin/gn gen out/${arch}-rel
   ninja -C out/${arch}-rel skqp_lib
   

4. Download meta.json from https://goo.gl/jBw3Dd . This is the data used to build the validation model.

5. Generate the validation model data:

   go get go.skia.org/infra/golden/go/search
   go run tools/skqp/make_gmkb.go ~/Downloads/meta.json \
       platform_tools/android/apps/skqp/src/main/assets/gmkb
   

Run as an executable

1. Build the SkQP program, load files on the device, and run skqp:

   ninja -C out/${arch}-rel skqp
   adb shell "cd /data/local/tmp; rm -rf gmkb report"
   adb push platform_tools/android/apps/skqp/src/main/assets/gmkb \
       /data/local/tmp/
   adb push out/${arch}-rel/skqp /data/local/tmp/
   adb shell "cd /data/local/tmp; ./skqp gmkb report"
   

2. Get the error report if there are errors:

   if adb shell test -d /data/local/tmp/report; then
       adb pull /data/local/tmp/report /tmp/
       tools/skqp/sysopen.py /tmp/report/report.html
   fi
   

Run as an APK

0. Install the Android SDK.

   mkdir ~/android-sdk
   ( cd ~/android-sdk; unzip ~/Downloads/sdk-tools-*.zip )
   yes | ~/android-sdk/tools/bin/sdkmanager --licenses
   export ANDROID_HOME=~/android-sdk
   

1. Build the skqp.apk, load it on the device, and run the tests

   platform_tools/android/bin/android_build_app -C out/${arch}-rel skqp
   adb install -r out/${arch}-rel/skqp.apk
   adb shell am instrument -w \
       org.skia.skqp/android.support.test.runner.AndroidJUnitRunner
   

2. Retrieve the report if there are any errors:

   adb backup -f /tmp/skqp.ab org.skia.skqp
   # Must unlock phone and verify backup.
   tools/skqp/extract_report.py /tmp/skqp.ab