After building with cmake, how do you load the build onto an emulator?

[KenKobayashiUCB]

I managed to successfully build using cmake, but I am having trouble figuring out how to load the code onto an emulator through android studio.

[headupinclouds]

I'm not sure what you mean by "the code". If you are referring to the real-time FaceFilter app, I don't think it will be easy to run that in an emulator. You would have to create some kind of camera interface to support testing. There are unit tests that run the drishti library using the Android QEMU emulator. If you are looking for the latter, I can provide some links.

[KenKobayashiUCB]

Yes, the links will be helpful. Also, sorry for not clarifying, but I did mean the real time FaceFilter App. Also for the camera interface you mentioned, do you mean that I would have to link the emulator to a webcam? or do you mean that I would have to develop some sort of UI to support a camera?

[headupinclouds]

or do you mean that I would have to develop some sort of UI to support a camera?

AFAIK, the Android emulator doesn't come with camera support. I did check at one point to see if end-to-end application level testing would be possible. I think you would have to write some code to play back video files or something like that.

Why do you need it?

If you manage your unit tests with gauze, it manage the emulator for you:

https://github.com/hunter-packages/gauze

This allows testing OpenGL ES shader pipeline in Travis CI.

See the docs (in particular the Android section):

https://gauze.readthedocs.io/en/latest/prereq/android.html

Example (gauze_main())

drishti/src/tests/drishti/test-drishti.cpp

Line 38 in 3787257

int gauze_main(int argc, char** argv)

Or any of the tests in the gauze repo:

https://github.com/hunter-packages/gauze/tree/master/test/gauze

The CI configs provide an example of various gauze Android Emulator settings you can pass from CMake. If you are using OpenGL, you need to use GAUZE_ANDROID_EMULATOR_GPU=host, and on Linux you want GAUZE_ANDROID_EMULATOR_GPU=swiftshader.

drishti/bin/jenkins.sh

Lines 93 to 125 in ee86763

	if [[ ${TRAVIS} == "true" ]]; then
	GAUZE_ANDROID_USE_EMULATOR=YES # remote test w/ emulator
	else
	GAUZE_ANDROID_USE_EMULATOR=NO # support local host testing on a real device
	fi
	if [[ `uname` == "Linux" ]]; then
	GAUZE_ANDROID_EMULATOR_GPU=swiftshader
	else
	GAUZE_ANDROID_EMULATOR_GPU=host
	fi
	set -x
	polly.py \
	--toolchain "${TOOLCHAIN}" \
	--config "${CONFIG}" \
	${VERBOSE} \
	--ios-multiarch --ios-combined \
	--archive drishti \
	--jobs 4 \
	${TEST} \
	"${INSTALL}" \
	--fwd \
	DRISHTI_BUILD_SHARED_SDK=${SHARED_SDK} \
	DRISHTI_BUILD_TESTS=YES \
	DRISHTI_BUILD_EXAMPLES=YES \
	DRISHTI_COPY_3RDPARTY_LICENSES=ON \
	DRISHTI_HAS_GPU=${GPU} \
	DRISHTI_HUNTER_CONFIG_MINIMAL=${MINIMAL} \
	GAUZE_ANDROID_USE_EMULATOR=${GAUZE_ANDROID_USE_EMULATOR} \
	GAUZE_ANDROID_EMULATOR_GPU=${GAUZE_ANDROID_EMULATOR_GPU} \
	GAUZE_ANDROID_EMULATOR_PARTITION_SIZE=40 \

[KenKobayashiUCB]

Thank you, I'll take a look at the documentation. I'm running it on an emulator because I don't have an android phone handy. As for why I'm interested in running the example code, I want to see how well the library runs on mobile to see if I can apply the library to a research project I'm a part of. My plan would be for the code to run in the background to calculate distance between the phone and face and to also possibly calculate gaze. The calculated information would then be used for image processing variables.