Review Request 119822: QScreen backend for libkscreen
Martin Gräßlin
mgraesslin at kde.org
Tue Aug 19 08:06:22 UTC 2014
> On Aug. 18, 2014, 1:55 p.m., Àlex Fiestas wrote:
> > autotests/testqscreenbackend.cpp, line 90
> > <https://git.reviewboard.kde.org/r/119822/diff/1/?file=306029#file306029line90>
> >
> > Q_FOREACH
or instead of using Qt macros one could use what the language provides: for (const KScreen::Output *op : m_config->outputs())
- Martin
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On Aug. 18, 2014, 11:31 a.m., Sebastian Kügler wrote:
>
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://git.reviewboard.kde.org/r/119822/
> -----------------------------------------------------------
>
> (Updated Aug. 18, 2014, 11:31 a.m.)
>
>
> Review request for Plasma and Solid.
>
>
> Repository: libkscreen
>
>
> Description
> -------
>
> This patch adds a QScreen backend to libkscreen.
>
> This is useful to avoid a dependency on XRandR (at build time) and a running X server at runtime.
>
> The backend itself is read-only and kept simple. It only reports the basic necessities (which is what QScreen provides).
>
> The changes are kept to the backends/qscreen directory, so no API has been touched. The changes outside of that directory are autotests, tests, and a fallback to the qscreen backend non non-X11 platforms. The latter will automatically make libkscreen work on Wayland (as far as QScreen allows us to, so r-o). This case otherwise just crashes, and the XRandR backend can't work. If the user specifies the backend using the KSCREEN_BACKEND env var, it will be respected, the automatism only triggers when no backend is explicitely specified. I've also added apidocs in some files, but again, no functional changes.
>
> The plan is to augment this also with a native Wayland backend, which will take a bit longer to complete (more complex, it's r-w, I have to learn Wayland APIs). That backend is work-in-progress in the sebas/wayland branch. The QScreen backend allows us to test and run our code under Wayland, without crashing, so we can continue the port while a native Wayland backend is conceived.
>
> You can find the code for this QScreen backend in sebas/qscreen if you'd like to give it a try.
>
>
> Diffs
> -----
>
> autotests/CMakeLists.txt 18b93c0
> autotests/testqscreenbackend.cpp PRE-CREATION
> backends/CMakeLists.txt a827ee8
> backends/abstractbackend.h 7ffe627
> backends/qscreen/CMakeLists.txt PRE-CREATION
> backends/qscreen/qscreenbackend.h PRE-CREATION
> backends/qscreen/qscreenbackend.cpp PRE-CREATION
> backends/qscreen/qscreenconfig.h PRE-CREATION
> backends/qscreen/qscreenconfig.cpp PRE-CREATION
> backends/qscreen/qscreenoutput.h PRE-CREATION
> backends/qscreen/qscreenoutput.cpp PRE-CREATION
> backends/qscreen/qscreenscreen.h PRE-CREATION
> backends/qscreen/qscreenscreen.cpp PRE-CREATION
> src/CMakeLists.txt 4606862
> src/backendloader.cpp d6ccdff
> src/config.h 10a8f1e
> tests/CMakeLists.txt 86efedc
> tests/testplugandplay.cpp PRE-CREATION
> tests/testpnp.h PRE-CREATION
> tests/testpnp.cpp PRE-CREATION
>
> Diff: https://git.reviewboard.kde.org/r/119822/diff/
>
>
> Testing
> -------
>
> * Ran autotest "testqscreenbackend" under X11 and Wayland -- all pass
> * Tested hotplugging (using included testpnp app) under X11
> * Started plasmashell with KSCREEN_BACKEND=QScreen under X11
> * Started kcmshell5 kcm_kscreen
>
> All of these work correctly in my tests, no strange behaviour observed.
>
>
> Thanks,
>
> Sebastian Kügler
>
>
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