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KDE KWin Progresses With Qt 5, KDE Frameworks 5

Qt

Published on 15 March 2013 08:00 PM EDT
Written by Michael Larabel in Qt
8 Comments

KDE's KWin compositing window manager is making steady progress in supporting the Qt 5 tool-kit and KDE Frameworks 5.

The lead developer of KWin has shared an update regarding the work he and others have been doing to bring KWin to Qt5 and KDE Frameworks 5, for the eventual release of KDE 5.

For making the transition, they've had to change their X Server interfacing from Xlib to using the modern XCB, changing around QGraphicsView code to using Qt Quick, porting more code to using QML, and improving the X RENDER compositor. With the X Render compositor improvements, also ended up bringing improvements to the OpenGL compositor due to re-thinking their rendering code paths.

In terms of where they are at in their transition to Qt 5, a test compile last week with Qt 5 and KDE Frameworks 5 revealed a few issues but KWin did successfully build. There's still some low-level issues like needing some of Qt 4's native graphics system and a few issues within KDE Frameworks 5.

Martin's focus for working on this porting right now is for testing their event filter from Xlib to XCB and they can only test that in a Qt 5 environment. The final transition to Qt 5 and KDE Frameworks 5 will come later.

Find more details within Martin's blog post.

About The Author
Michael Larabel is the principal author of Phoronix.com and founded the web-site in 2004 with a focus on enriching the Linux hardware experience and being the largest web-site devoted to Linux hardware reviews, particularly for products relevant to Linux gamers and enthusiasts but also commonly reviewing servers/workstations and embedded Linux devices. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics hardware drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated testing software. He can be followed via and or contacted via .
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