Introducing Miroil

alan_g

@jonius I don't have VirtualBox to hand to give detailed instructions. But it should work if you enable "the right" graphics options. Not sure what it's called. Something like 'passthrough' or '3D' maybe?

jonius

@alan_g
I was hit by this bug. Now with 3D acceleration enabled most of the smoke tests succeed. Only mir_demo_client_eglplasma still failes. And the unit test I mentioned above continues to fail as well. Will test on separate installation without VM this weekend.

MIR_SERVER_CURSOR=null QT_QPA_PLATFORM=mirserver qmlscene qml-demo-shell/qml-demo-shell.qml works partially. The circle rotates, but the mouse cursor is not visible and clicking the scale buttons results in file:///home/miroil/qtmir/demos/qml-demo-shell/qml-demo-shell.qml:28: Error: Unknown method parameter type: FormFactor.

alan_g

@jonius said in Introducing Miroil:

the mouse cursor is not visible

That's sort of expected. I disabled the cursor in Mir because QtMir tries to set a zero sized image instead of hiding it. And Mir treats that as an error.

I've not looked at how it works for Lomiri. I suspect it renders its own cursor.

jonius

@alan_g installed Ubuntu 16.04 on my notebook directly via Ubuntu Touch (ISODrive is a great tool). Unfortunately the situation here is worse than in my VM on an Ubuntu 20.04 host. I guess the outdated amdgpu for my Radeon Vega 8 Graphics in Ubuntu 16.04 is to blame. The demo runs like in the VM, the same unit test fails, but many smoke tests fail:

I:     mir_demo_client_camera
I:     mir_demo_client_tooltip
I:     mir_demo_client_eglsquare
I:     mir_demo_client_eglplasma
I:     mir_demo_client_eglstateswitcher
I:     mir_demo_client_target
I:     mir_demo_client_scroll
I:     mir_demo_client_cursors
I:     mir_demo_client_egltriangle
I:     mir_demo_client_egldiamond_render_surface
I:     mir_demo_client_display_config
I:     mir_demo_client_eglcounter
I:     mir_demo_client_touch_validator
I:     mir_demo_client_animated_cursor
I:     mir_demo_client_pointer_confinement
I:     mir_demo_client_input_shapes
I:     mir_demo_client_eglflash

So I guess best is to switch back to my VM? Is the failing tests something I could ignore for now?

alan_g

@jonius said in Introducing Miroil:

Is the failing tests something I could ignore for now?

Of course. It will get annoying, but if you know you didn't break the code...

You've clearly got enough working to try stuff out.

greyback

Hey folks,
I can make this slightly easier with a few handy env vars.

@alan_g said in Introducing Miroil:

sudo ln -s /usr/local/lib/qt5/plugins/platforms/libqpa-mirserver.so /usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/

Allows Qt to find the platform.

You can avoid this soft link by setting this env var instead:

export QT_QPA_PLATFORM_PLUGIN_PATH=/usr/local/lib/qt5/plugins/platforms

@alan_g said in Introducing Miroil:

So Let's make that easier to find too:
sudo ln -s /usr/local/lib/qt5/qml/Unity/ /usr/lib/x86_64-linux-gnu/qt5/qml/

Similarly, you can avoid the soft link again and point Qt directly to where those QML plugins live with:

export QML2_IMPORT_PATH=/usr/local/lib/qt5/qml

Hope this helps
-G

Aury88

during the QtMir build with make -j 6 all test I also had the fatal error described by @jonius :

[ 87%] Building CXX object tests/mirserver/ScreensModel/CMakeFiles/ScreensModelTest.dir/screensmodel_test.cpp.o
In file included from /home/aurelio/qtmir/src/modules/Unity/Application/mirsurface.h:35:0,
                 from /home/aurelio/qtmir/tests/modules/SurfaceManager/surface_manager_test.cpp:22:
/home/aurelio/qtmir/src/modules/Unity/Application/mirbuffersgtexture.h:20:30: fatal error: miroil/mirbuffer.h: Not existing file or directory 
compilation terminated.
tests/modules/SurfaceManager/CMakeFiles/surfacemanager_test.dir/build.make:62:  instruction set  for the target "tests/modules/SurfaceManager/CMakeFiles/surfacemanager_test.dir/surface_manager_test.cpp.o" failed
make[2]: *** [tests/modules/SurfaceManager/CMakeFiles/surfacemanager_test.dir/surface_manager_test.cpp.o] Error 1
CMakeFiles/Makefile2:2146:  instruction set  for the target "tests/modules/SurfaceManager/CMakeFiles/surfacemanager_test.dir/all" failed
make[1]: *** [tests/modules/SurfaceManager/CMakeFiles/surfacemanager_test.dir/all] Error 2
make[1]: *** waiting incomplete process....

and after that

[ 95%] Built target applicationmanager_test
Makefile:138: instruction set  for the target  "all" failed
make: *** [all] Error 2

alan_g

@jonius can you PR your fix? It looks to tidy up the cmake code too.

alan_g

@aury88 I'm not sure when I'll be at a computer where I can fix this. In the meantime you could google enough git magic to cherry-pick @jonius's fix.

UPDATE: I've pushed a fix for the build error. There's still the test failure noted above.

@Aury88 You can get the fix with git pull

jonius

@alan_g does that mean no need for a PR from my side?

Aury88

@jonius i tried again after the git pull but obtain the same error

alan_g

@aury88 said in Introducing Miroil:

@jonius i tried again after the git pull but obtain the same error

Sorry, you'll need a git fetch first.

alan_g

@jonius said in Introducing Miroil:

@alan_g does that mean no need for a PR from my side?

Well, I've fixed the compile error, but you modernized the code as well. I think that's still worth a PR.

Aury88

@alan_g
Oh! so I totally misunderstood that command...reading the documentation seemed to me git pull already encompass a git fetch and a git merge. also I tried the git pull after the make command and that confirmed the local branch was up-to-date. ok, i will try again after the fetch. thank you.

alan_g

@jonius said in Introducing Miroil:

@jonius next issue is a failing test (ApplicationManager), which fails here.

I had a look over the weekend. The test is failing in the branch I based this off, and I didn't see an obvious cause for it.

I probably need to find a better base branch for this work. I really find all these QtMir branches a mystery. Maybe the best one is one of those in the gitlab repo?