Hi Miguel,

Something sounds amiss on your build, the whole ideal behind the
instance() method is that it should manage a single instance that
doesn't not get created.  I haven't heard reports of similar problems
to what you describe, doing lots of read and writeNodeFile calls is
pretty common usage model in the OSG so its something I would expect
to hear lots of reports of problems if there was something serious
lurking.

Can you recreate the problem with one of the standard OSG examples?
Is there anything unusual in the way you manage the OSG? i.e.
loading/unloading of the OSG libraries such as via a dynamic plugin to
a another application.

I'd also check to make sure you don't have mixed versions of the OSG
on your system, i.e. compiling against one version, but linking at
runtime to another.

Robert.

On 7/27/07, Miguel Martinez <[EMAIL PROTECTED]> wrote:
> Hi all,
>
> I have an osg::Image wich I write to a file on disk.
> I have to overwrite this same image several times in run time.
> What I do Is call
>
> osgDB::writeImageFile(img, path)
>
> The first call the function succeeds, but all the other calls
> it can't do it, because the loadLibrary function fails when tying
> to load the bmp plugin.
>
> I've been tracing the code and seems that there's another
> registry instance in memory (loaded in the first writeImageFile call)
> wich is causing the loadLibrary to fail.
>
> the writeImageFile calls  Registry::instance()->writeImage(image,filename);
>
> and the instance() generates a new Registry each time.
> The instance function has a "bool erase = false" to erase generated
> instance after
> the write operation, but I can't set it from writeImageFile call.
>
> However, the osgDB::writeNodeFile works OK writing to a same file several
> times along the app runtime.
>
> Maybe storing a pointer to Registry::instance() at my app startup,
>  and calling  registry_ptr->writeImage can solve temporarily the problem but
> I think the function should behave the same as osgDB::writeNodeFile and
> that's
> why I post this message.
>
> Hope it helps!
>
>  // Miguel Martinez Rodilla
> _______________________________________________
> osg-users mailing list
> [email protected]
> http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
>
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