Hi all, Back from vacation. At the end of the vacation I went to the GNU Classpath workshop and Linux-Kongress in Saarbruecken. Was very nice to meet a couple of developers in real live.
On Wednesday Sascha Brawer, Patrik Reali, Jeroen Frijters, Chris Gray, Dalibor Topic. Jean Daniel Fekete and I spoke about Java2D and OpenGL. Jean Daniel had slides which I hope can be published for others to look at. But please take a look at http://www.cs.umd.edu/hcil/agile2d/ if you haven't so yet. Jean Daniel is really interested to get this working with a free vm and GNU Classpath. We tried to come up with a list of things that have to be done to get this working and although there is certainly still a lot of work to do we do have large parts working already. I am hoping that Sascha his notes are better then mine and that he can post the list of things we need to get working to get Agile2D running with GNU Classpath. To really benefit from OpenGL you do need hardware support and there are only a few free software drivers out there. There is always Mesa, which is slow, but at least we would have the functionality. And most work that needs to be done seems to be important for other 2D approaches. I know to little about the graphics card hardware vendors to get a good feeling about how "save" the OpenGL route is for our Free Software efforts. One important issue that remained open was how java threads and the threading model of the underlying graphics framework should work together. After that, Jean Daniel had to leave early, we discussed some other GNU Classpath issues such as: autobuilders, (auto) mauve, attracting developers with task lists, spicing up the website, vm interfacing, things not yet implemented, ... Again Sascha was the most organized and made a todo list which I hope he will send to the list. Jeroen also has a little report at the ikvm weblog: http://weblog.ikvm.net/PermaLink.aspx/c69de097-f0a3-4018-9ba7-f04f6f743d46 The next day Michael Tieman (Red Hat CTO) gave the Linux-Kongress keynote. In his speech he explicitly mentioned the Eclipse project so we (Chris, Sascha, Patrik, Dalibor and I) decided to have a little chat with him. Although he now is a bobo of big company who doesn't do much technical hacking anymore, he clearly knew a lot about the things that go on. He was pretty optimistic about the direction of the Eclipse project and how they handle outside input. Although he didn't really made any commitments it was clear that he cared deeply about a free java like framework. We also talked about how the CPL (Common Public License), that Eclipse and SWT are distributed under, which makes it impossible to use when combining it with any GPL covered code. And we might be able to convince them (he is on the Eclipse Board of Stewards) to resolve this issue. Although again no promises, but I think this is something we should try to push a little. After Chris Gray had to leave I gave a little talk about old and new VM Interface approaches for which I didn't have time on Wednesday. Slides can be found at: http://www.klomp.org/mark/classpath/slides/gnu_classpath_workshop.html They are clearly not complete, but I like to use them to update the Hackers Guide and VM Integration Guide. Patrik, Sascha and I also talked to one of the organizers, Martin Schulte, about organizing some event around Classpath, libre java, VM concepts, ... We didn't reach a good goal for such a meeting so we will contact him again with some ideas and see if he can help (which he seemed to really like to do). Surely I forgot something important that happened, but hopefully someone else that was there can remind me :) I am still a bit behind on email, so if you have been waiting on a reply for some time now please send me a little reminder. Cheers, Mark
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