Hello! This is my weekly ChangeLog, from 27 February 2017 to 5 March 2017. You can see it in a better format by going here: http://log.smallworks.eu/web/search?from=27/2/2017&to=5/3/2017 ChangeLog ========= 3 March 2017: ------------- * And now I made +libssh2.so+ compile on linux too :) I think Iceberg is fixed now for linux, can someone with linux try +vmLatest60+. * I worked on VM for linux, this time fixing dependencies for libgit2: it was not working because it was trying to link libssh2 existing in the system instead the one we provide (a problem with rpath)... I figured out I need to add some CMAKE options: ---- -DCMAKE_SKIP_BUILD_RPATH=FALSE -DCMAKE_INSTALL_RPATH="." ---- otherwise +make install+ was ignoring the +-Wl,rpath,.+ configuration. With this it seems to be working, but now I have a problem with +libssh2+ compilation. I'll see this next. * I took some moments to fix a problem on new UFFI version (0.26): Now, structures use a class variable to keep the offset value of a field. So now, instead having an accessor to a field of the form (for example): ---- MyStructure>>myField ^ handle unsignedLongAt: 42 ---- ... now you have an accessor of the form: ---- MyStructure>>myField ^ handle unsignedLongAt: OFFSET_MYFIELD ---- this is necesary to allow different platforms to use same structures (because sizes of fields, and in consequence of offsets of them inside a stricture are different). This 'offsets' are calculated (as structure compiled specs) at first access to +#compiledSpec+ of structure, which usually happens when you use it first time... but now always, as [case: 19788](https://pharo.fogbugz.com/f/cases/19788) shows. Well, now I fixed that :) 2 March 2017: ------------- * I added a Discord link on [http://pharo.org/community](http://pharo.org/community)... I want to slowly start moving our community there. I know Slack is very popular among us this days but Dicords offers some advantages (like no 10k limit on messages and a powerful search). 1 March 2017: ------------- * ... and now I made the [case:19783](https://pharo.fogbugz.com/f/cases/19783), to make SDL2 work on 64bits (it works!) :) * Yesterday I spent the full day debugging a VM to see why Athens was not working for 64bits and I finally figured out the problem was in image and not in VM :P As a result of the work, I produced this fixes: * [case:19781](https://pharo.fogbugz.com/f/cases/19781) to fix a problem answering pointers on callbacks. * [case:19782](https://pharo.fogbugz.com/f/cases/19782) to actually prepare Athens. With this two cases, Athens works in 64bits (almost) :) Now there is a problem in 64bits callbacks that makes the +VGTigerDemo runDemo+ to fail after some cycles. Since this problem does not happens on 32bits, I assume there is a problem on how callbacks work on 64bits. I'm not working on that (I will work also in migrating SDL2). 27 February 2017: ----------------- * Well, I spend some time trying to blindly figure out why athens may crash time to time when drawing surfaces, basically testing the apprachs [Ronie proposes](http://forum.world.st/Too-frequent-crashes-td4927143i20.html#a4934027). First approach consists on copying data to not rely on a surface at all. Problem with this is that it involves a whole full copy, that causes a lot of GC that pauses a lot the image... so smoothness is gone. Second approach seems a lot more doable, but I still don't know if it works: ---- Form subclass: #AthensCairoSurfaceForm instanceVariableNames: 'surface' classVariableNames: '' package: 'Athens-Cairo' AthensCairoSurfaceForm>>surface ^ surface AthensCairoSurfaceForm>>surface: anObject surface := anObject AthensCairoSurface>>asForm "create a form and copy an image data there" self checkSession. self flush. ^ (AthensCairoSurfaceForm extent: (self width@self height) depth: 32 bits: id) surface: self; yourself ---- this will prevent surfaces to be garbage collected before it's time and seems to be working fine (at least in my machine). cheers! Esteban