Hi Iñaki, Have you tried osgstaticviewer? Please have a look at it, it's the definitive way to get the OSG working statically.
Robert. On Wed, Nov 18, 2009 at 6:21 PM, Iñaki García <[email protected]> wrote: > Hi Robert, > > I know the issue with the dynamic plugin registration, and the "mangled > names" that I have to force including in order to make the plugins link into > my binary. But what is very rare is that I *explicitly* call > createGraphicsContext, which calls windowingSystemInterfaceRef, which > returns NULL when returning a reference to a static variable. And that > doesn't make sense to me. > > Under this circumstances, can the linker exclude > windowingSystemInterfaceRef? And when a non-existing function is called, > returning NULL is enough? (crash, freeze or explode seems more suitable) > > Another possibility is that the function exists but that static variable > hasn't been allocated? Why shouldn't it be allocated from the beginning? In > case it can give a clue, I´m running the debug build, without optimizations. > > Chris: > Do you mean that a static "local-to-a-function" variable must be created by > someone, and that the DLL init does and my app doesn't? I'm not very > experienced on this memory-related details. > > Iñaki > > Robert Osfield escribió: >> >> Hi Iñaki? García? >> >> Could you sign with the name you wish to be addressed as, as it makes >> it easier to avoid addressing you incorrectly, thanks. >> >> W.r.t getting things working under a static build, the main problem >> that you have to deal with is that the compiler will not bother >> linking in symbols that aren't explicitly used, so they default the >> OSG's proxy registration schemes such as used in osgViewer and osgDB >> for the plugins. This means you have to add these symbols in your >> app. Have a look at the osgstaticviewer to see the easist way to do >> this. >> >> Robert. >> >> On Wed, Nov 18, 2009 at 5:22 PM, Iñaki García <[email protected]> wrote: >> >>> >>> Hi everybody: >>> >>> I've a working application (Windows, MFC) with an OSG scene in one >>> window, >>> that works correctly when I use OSG's DLLs. But, in order to distribute >>> it, >>> I prefer an all-in-one executable, so I've built OSG v2.8.2 statically, >>> linked to my app with success. >>> >>> But when I run it, it does not display anything in its window. I've >>> debugged >>> the differences between the statically and dynamically versions to a >>> point. >>> In the statically built, the: >>> osg::GraphicsContext::createGraphicsContext(traits.get()) >>> returns NULL, and in dynamically doesn't. >>> >>> If I debug deeper, I find it's because: >>> windowingSystemInterfaceRef() >>> returns NULL >>> >>> And that's because that function is: >>> static ref_ptr<GraphicsContext::WindowingSystemInterface> >>> &windowingSystemInterfaceRef() >>> { >>> static ref_ptr<GraphicsContext::WindowingSystemInterface> >>> s_WindowingSystemInterface; >>> return s_WindowingSystemInterface; >>> } >>> >>> My questions: >>> How can that function return NULL? Why a different behaviour between >>> static >>> and dynamic linkage? >>> >>> Best regards >>> -- >>> * Iñaki García >>> División de Ingeniería - Engineering Division >>> European Virtual Engineering (EUVE) <http://www.euve.org>* >>> Avenida de los Huetos 79, "Edificio azucarera" >>> 01010 Vitoria-Gasteiz (Álava) - Spain >>> Tel: +34 945 21 46 46 Fax: +34 945 21 46 47 >>> _______________________________________________ >>> osg-users mailing list >>> [email protected] >>> http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org >>> >>> >> >> _______________________________________________ >> osg-users mailing list >> [email protected] >> http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org >> >> > > _______________________________________________ > osg-users mailing list > [email protected] > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
