Hi Robert,
attached is the sample that crashes. Please let me know if crash for you as
well
-Nick
On Fri, Feb 19, 2010 at 7:10 PM, Robert Osfield <[email protected]>wrote:
> Hi Nick,
>
> On Fri, Feb 19, 2010 at 4:43 PM, Trajce (Nick) Nikolov
> <[email protected]> wrote:
> > the dll is not undloaded. When I do
> > viewer = 0;
> > the viewer address and the one that gets down to objectDeleted(void* ptr)
> > are slightly different, means viewer.get() != ptr.
> > _ptr is not equal to obj
>
> OK, things are getting odder... but I guess we uncover a clue soon.
>
> What happens to the viewer, _ptr and obj values if you modify
> osgviewer to construct a viewer on the heap and the delete it by
> setting the ref_ptr<> to 0 or letting it go out of scope?
>
> Testing whether the same problems with pointers mismatching when using
> a the dll or straight app may give some more clues.
>
> Robert.
> _______________________________________________
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>
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield
*
* This application is open source and may be redistributed and/or modified
* freely and without restriction, both in commericial and non commericial
applications,
* as long as this copyright notice is maintained.
*
* This application is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*/
#include <osgDB/ReadFile>
#include <osgUtil/Optimizer>
#include <osg/CoordinateSystemNode>
#include <osg/Switch>
#include <osgText/Text>
#include <osgViewer/Viewer>
#include <osgViewer/CompositeViewer>
#include <osgViewer/ViewerEventHandlers>
#include <osgGA/TrackballManipulator>
#include <osgGA/FlightManipulator>
#include <osgGA/DriveManipulator>
#include <osgGA/KeySwitchMatrixManipulator>
#include <osgGA/StateSetManipulator>
#include <osgGA/AnimationPathManipulator>
#include <osgGA/TerrainManipulator>
#include <osgGA/SphericalManipulator>
#include <iostream>
int main(int argc, char** argv)
{
// use an ArgumentParser object to manage the program arguments.
osg::ArgumentParser arguments(&argc,argv);
arguments.getApplicationUsage()->setApplicationName(arguments.getApplicationName());
arguments.getApplicationUsage()->setDescription(arguments.getApplicationName()+"
is the standard OpenSceneGraph example which loads and visualises 3d models.");
arguments.getApplicationUsage()->setCommandLineUsage(arguments.getApplicationName()+"
[options] filename ...");
arguments.getApplicationUsage()->addCommandLineOption("--image
<filename>","Load an image and render it on a quad");
arguments.getApplicationUsage()->addCommandLineOption("--dem
<filename>","Load an image/DEM and render it on a HeightField");
arguments.getApplicationUsage()->addCommandLineOption("--login <url>
<username> <password>","Provide authentication information for http file
access.");
{
osg::ref_ptr<osgViewer::Viewer> viewer = new osgViewer::Viewer;
viewer->setThreadingModel(osgViewer::CompositeViewer::CullDrawThreadPerContext);
unsigned int helpType = 0;
if ((helpType = arguments.readHelpType()))
{
arguments.getApplicationUsage()->write(std::cout,
helpType);
return 1;
}
// report any errors if they have occurred when parsing the
program arguments.
if (arguments.errors())
{
arguments.writeErrorMessages(std::cout);
return 1;
}
if (arguments.argc()<=1)
{
arguments.getApplicationUsage()->write(std::cout,osg::ApplicationUsage::COMMAND_LINE_OPTION);
return 1;
}
std::string url, username, password;
while(arguments.read("--login",url, username, password))
{
if
(!osgDB::Registry::instance()->getAuthenticationMap())
{
osgDB::Registry::instance()->setAuthenticationMap(new osgDB::AuthenticationMap);
osgDB::Registry::instance()->getAuthenticationMap()->addAuthenticationDetails(
url,
new
osgDB::AuthenticationDetails(username, password)
);
}
}
// set up the camera manipulators.
{
osg::ref_ptr<osgGA::KeySwitchMatrixManipulator>
keyswitchManipulator = new osgGA::KeySwitchMatrixManipulator;
keyswitchManipulator->addMatrixManipulator( '1',
"Trackball", new osgGA::TrackballManipulator() );
keyswitchManipulator->addMatrixManipulator( '2',
"Flight", new osgGA::FlightManipulator() );
keyswitchManipulator->addMatrixManipulator( '3',
"Drive", new osgGA::DriveManipulator() );
keyswitchManipulator->addMatrixManipulator( '4',
"Terrain", new osgGA::TerrainManipulator() );
keyswitchManipulator->addMatrixManipulator( '5',
"Spherical", new osgGA::SphericalManipulator() );
std::string pathfile;
char keyForAnimationPath = '6';
while (arguments.read("-p",pathfile))
{
osgGA::AnimationPathManipulator* apm = new
osgGA::AnimationPathManipulator(pathfile);
if (apm || !apm->valid())
{
unsigned int num =
keyswitchManipulator->getNumMatrixManipulators();
keyswitchManipulator->addMatrixManipulator( keyForAnimationPath, "Path", apm );
keyswitchManipulator->selectMatrixManipulator(num);
++keyForAnimationPath;
}
}
viewer->setCameraManipulator(
keyswitchManipulator.get() );
}
// add the state manipulator
viewer->addEventHandler( new
osgGA::StateSetManipulator(viewer->getCamera()->getOrCreateStateSet()) );
// add the thread model handler
viewer->addEventHandler(new osgViewer::ThreadingHandler);
// add the window size toggle handler
viewer->addEventHandler(new osgViewer::WindowSizeHandler);
// add the stats handler
viewer->addEventHandler(new osgViewer::StatsHandler);
// add the help handler
viewer->addEventHandler(new
osgViewer::HelpHandler(arguments.getApplicationUsage()));
// add the record camera path handler
viewer->addEventHandler(new osgViewer::RecordCameraPathHandler);
// add the LOD Scale handler
viewer->addEventHandler(new osgViewer::LODScaleHandler);
// add the screen capture handler
viewer->addEventHandler(new osgViewer::ScreenCaptureHandler);
// load the data
osg::ref_ptr<osg::Node> loadedModel =
osgDB::readNodeFiles(arguments);
if (!loadedModel)
{
std::cout << arguments.getApplicationName() <<": No
data loaded" << std::endl;
return 1;
}
// any option left unread are converted into errors to write
out later.
arguments.reportRemainingOptionsAsUnrecognized();
// report any errors if they have occurred when parsing the
program arguments.
if (arguments.errors())
{
arguments.writeErrorMessages(std::cout);
return 1;
}
// optimize the scene graph, remove redundant nodes and state
etc.
osgUtil::Optimizer optimizer;
optimizer.optimize(loadedModel.get());
viewer->setSceneData( loadedModel.get() );
viewer->realize();
while (!viewer->done())
{
viewer->frame();
}
viewer->setSceneData( 0 );
viewer->setCameraManipulator(0);
viewer->setCamera(0);
viewer = 0;
}
}
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