hi Serge, thanks for your hints.
>Have you looked to osgDB::Registry::setReadFileCallback ? unfortunately, osgDB::Registry::setReadFileCallback does not the job. it passes the file name down to the loading mechanism chain, i.e. the actual file access is still managed in individual plugins using istream. >This way you can even pass to the OSG plugin a custom std::stream which can >read into your pack system. well, i fear this won't work as well, as plugins expect a file name, no stream object. i have to admit, the mentioned feature would have an impact on exsiting plugins, as they would need an extention for using a forein stream object, if it exists, which is set by a callback, instead of creating an own stream out of a given file name. cheers boto >Hi Boto, >Have you looked to osgDB::Registry::setReadFileCallback ? Another way to >achieve what you want can be to make a plugin for your packed file and use >encoded strings as files names to know wich file to get from your pack, ie : >cow.osg|mypack.pack >With such a file name, your plugin will know that it needs the pack >"mypack.pack", and that it needs to load the cow.osg file from it. This way >you can even pass to the OSG plugin a custom std::stream which can read into >your pack system. > >Hopes this helps ! >Cheers, >On Mon, Aug 11, 2008 at 3:20 PM, Botorabi <[EMAIL PROTECTED]> wrote: > i am searching for a way which allows having all necessary data files > packed into a single file -- such as pak files of typical games -- and let > osg read the image and scene files from that pack file. there is physfs > which can provide a virtual files system given it a compressed archive file, > e.g. a zip file. > > however, i could not see a central place in osgDB for placing an > appropriate hook, in order to avoid plugins taking a file name and using std > streams on their own for accessing the files. > > it would be great to set a sort of callback object for accessing the > content of files and osg would take from that callback object either a data > buffer for processing or a std stream. > > what do you think about this idea? > > > cheers > boto _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
