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 I guess the outdated amdgpu for my Radeon Vega 8 Graphics in Ubuntu 16.04 is to blame.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?