X.Org Multi-Touch Support Finally Set To Land
Multi-touch support is finally ready for the X.Org world! Peter Hutterer has submitted the patches for X.Org Server 1.12 that deliver on multi-touch support with the X Input 2.2 extension.
After being delayed by several release cycles and going from being a feature of X Input 2.1 to X Input 2.2, the multi-touch support for the X.Org Server is finally ready. It's going to land in the 1.12 release, which will be officially released in March.
Peter Hutterer, the developer that was also behind Multi-Pointer X (MPX) support for the X.Org Server, emailed in the pull request so that Keith Packard can accept this work during the xorg-server 1.12 merge window, which is closing in just a few days.
With the multi-touch event support, X Input 2.2 also introduces pointer emulation on selected touch events and the semantics for grabbing and replaying of touch sequences. The current support isn't yet perfect, but it's continuing to be refined as tool-kit and application developrs begin targeting Xi2.2 support. Developers for Qt and the GTK tool-kits have already been gearing up for multi-touch support in their newest tool-kits.
Besides needing to grab a new X.Org Server, also required for taking advantage of the X Input 2.2 Multi-Touch support is an updated inputproto, xf86-input-evdev input driver, and a new libXi. With the X.Org Server 1.12 final release in March will also come the X.Org 7.7 Katamari.
Besides Peter, also having a hand in the multi-touch / Xi 2.2 work has been Daniel Stone and Chase Douglas.
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