On 10/07/2013 05:32 PM, DRC wrote: > On 10/7/13 3:56 PM, Karthikeyan Balu wrote: >>> I’m not sure whether their drivers support access from Virtual display >>> servers ? and I guess TurboVNC being able to simulate these inputs comes >>> next. Any experience.
> 3DConnexion unfortunately does things at a fairly low level, rather than > using, for > instance, the X Input Extension or some other mechanism that would be > easier for TurboVNC to implement. AFAIK, their "driver" on the Linux > side is basically tapping into USB directly and then translating the > device movements to raw mouse inputs, and they must be feeding them into > the X server using XTest or some other mechanism that TurboVNC already > supports. To make this work (we do it with Exceed onDemand), one needs to: 1. On Windows desktop client, link to 3dConnexion's SDK (awful, buggy drivers) to read the input device events. Historically one did this on a separate thread (did I mention awful, buggy drivers?). 2. Deliver event info to X server. If RFB is supporting any XINPUT events there is a standard (see 3dConnexion SDK) way to pack the axis/period info into a DeviceValuator. 3. From X server, using a choice of XINPUT or older Magellan protocol (magic atom queried by apps, Client Events) deliver events to X clients that requested them. Preferably you do both because often apps support only one of them. And then bear in mind that there is a variant "Spaceball" protocol, different from Magellan, that apps like Catia use. I've been unable to find any documentation on how that is supposed to work (and, sadly, Dassault seems less interested in interoperability). -Nathan -- OpenText Corp. ------------------------------------------------------------------------------ October Webinars: Code for Performance Free Intel webinars can help you accelerate application performance. Explore tips for MPI, OpenMP, advanced profiling, and more. Get the most from the latest Intel processors and coprocessors. See abstracts and register > http://pubads.g.doubleclick.net/gampad/clk?id=60134071&iu=/4140/ostg.clktrk _______________________________________________ VirtualGL-Users mailing list VirtualGL-Users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/virtualgl-users
