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This is an automatically generated e-mail. To reply, visit:
https://git.reviewboard.kde.org/r/126381/
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(Updated Dec. 17, 2015, 6:50 p.m.)


Review request for Plasma, Solid, Daniel Vrátil, and Martin Gräßlin.


Changes
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Addressed comments.


Repository: libkscreen


Description
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This adds a kwayland backend to libkscreen.

This backend uses KWayland's OutputManagement protocol for enlisting and
configuring devices.

Enlisting outputs

KScreen's outputs are created from KWayland::Client::OutputDevice objects,
they copy the data into kscreen's Outputs, and update these objects. A list
of outputs is requested from the client Registry object.

Configuring outputs

The backend asks the global OutputManagement interface for an 
OutputConfiguration
object, then sets the changes per outputdevice on this object, and asks the
compositor to apply() this configuration.

For this to work, the compositor should support the Wayland 
org_kde_kwin_outputdevice
and org_kde_kwin_outputmanagement protocols, for example through
KWayland::Server classes OutputDevice, OutputManagmenent and OuputConfiguration.

General working

WaylandBackend creates a global static internal config, available through
WaylandBackend::internalConfig(). WaylandConfig binds to the wl_registry
callbacks and catches org_kde_kwin_outputdevice creation and destruction.
It passes org_kde_kwin_outputdevice creation and removal on to
WB::internalConfig() to handle its internal data representation as 
WaylandOutput.
WaylandOutput binds to org_kde_kwin_outputdevice's callback, and gets notified
of geometry and modes, including changes. WaylandOutput administrates the
internal representation of these objects, and invokes the global notifier,
which then runs the pointers it holds through the updateK* methods in
Wayland{Screen,Output,...}.

KScreen:{Screen,Output,Edid,Mode} objects are created from the internal
representation as requested (usually triggered by the creation of a
KScreen::Config object through KScreen::Config::current()). As with other
backends, the objects which are handed out to the lib's user are expected
to be deleted by the user, the backend only takes ownership of its internal
data representation objects.


Diffs (updated)
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  CMakeLists.txt efac5ce 
  autotests/CMakeLists.txt 07b7bbc 
  autotests/configs/default.json 3ac3e19 
  autotests/testconfigserializer.cpp 1af3069 
  autotests/testkwaylandbackend.cpp PRE-CREATION 
  autotests/testkwaylandconfig.cpp PRE-CREATION 
  backends/CMakeLists.txt ff5d751 
  backends/kwayland/CMakeLists.txt PRE-CREATION 
  backends/kwayland/README.md PRE-CREATION 
  backends/kwayland/waylandbackend.h PRE-CREATION 
  backends/kwayland/waylandbackend.cpp PRE-CREATION 
  backends/kwayland/waylandconfig.h PRE-CREATION 
  backends/kwayland/waylandconfig.cpp PRE-CREATION 
  backends/kwayland/waylandoutput.h PRE-CREATION 
  backends/kwayland/waylandoutput.cpp PRE-CREATION 
  backends/kwayland/waylandscreen.h PRE-CREATION 
  backends/kwayland/waylandscreen.cpp PRE-CREATION 
  src/backendmanager.cpp 89ae31e 
  src/config.cpp e8b8a8f 
  src/screen.h 4cd1e82 
  tests/CMakeLists.txt d5e41d5 
  tests/kwayland/CMakeLists.txt PRE-CREATION 
  tests/kwayland/main.cpp PRE-CREATION 
  tests/kwayland/waylandconfigreader.h PRE-CREATION 
  tests/kwayland/waylandconfigreader.cpp PRE-CREATION 
  tests/kwayland/waylandtestserver.h PRE-CREATION 
  tests/kwayland/waylandtestserver.cpp PRE-CREATION 

Diff: https://git.reviewboard.kde.org/r/126381/diff/


Testing
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The patch contains a test server, which is used for the autotests.

The test server uses KWayland's server classes and is set up from the json 
config data we use for the other tests. That means that the backends runs 
against a real server to test everything.

I also tested the kscreen UI, which also works as expected.


Thanks,

Sebastian Kügler

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