Nobody want to give it a shot? --- In [email protected], "marcel.panse" <[EMAIL PROTECTED]> wrote: > > Check out the source code at: > http://base.google.com/base/a/2685374/D9044196074378539154 > > --- In [email protected], "marcel.panse" <marcel.panse@> > wrote: > > > > Hi, > > > > I'm working on an AIR application that has to load a lot of pictures > > from a users harddrive. I have to be able to load about 120 photos (of > > 3MB each), open them, resize it, save it in memory and cache a resized > > photo to disk. So i created a manager which has an internal queueing > > system that loads the photos one by one and doing the operations > > before continueing on to the next photo. The most processor time goes > > into loading the photos from disk into memory, which is a asynchronous > > job, so the GUI has plenty of time to update and keep track with a > > simple loading bar. > > > > Now the calls to load the next photo uses > > 'Application.application.callLater(loadPhoto)', on a Windows machine > > this is no problem at all, and it loads 120photos easily (i've tested > > it with up to 500). Now if you change that sencentence to > > 'setTimeOut(loadPhoto, 500)', then it suddenly stops working. It loads > > up to 70photos and then sais 'Invalid bitmapdata'. This is probably > > because the garbage collector is too slow and can't free the memory in > > time, resulting in memory allocation errors. > > When i'm running the same thing on a MacBook Pro (which is faster then > > my windows laptop, and has twice the amount of RAM), then suddenly > > both scenarios don't work and i can only load up to 17 photos. The RAM > > Climbing very fast up to 500megs and crashes... > > > > The solution would be to force the garbage collector to free the > > memory between each load, but there is as far as i know no such > > functionality in flex. I have found a little hack that forces the > > garbage collection to free the memory by creating multiple > > LocalConnections with the same name (and catching the exception it > > throws). Using that hack everything works fine on both the windows > > laptop and the MacBook. > > > > This is the garbage collection hack: > > > > private function gcHack():void > > { > > // unsupported hack that seems to force a full GC > > try > > { > > var lc1:LocalConnection = new LocalConnection(); > > var lc2:LocalConnection = new LocalConnection(); > > > > lc1.connect('name'); > > lc2.connect('name'); > > } > > catch (e:Error) > > { > > } > > } > > > > > > This is offcourse not the solution we'd like to go into production > > with. Is there a better solution, what is the 'official' way to do > > such things? > > >
