Hi everyone,
I have an application which is trying to load some basic VRML files (such as
a cube) and display them with GLUT. Unfortunately I'm getting a crash in
osgthread.cpp with Opensg CVS version libraries compiled in MSVC2005 on
Win32. The error occurs when trying to access the Thread Local Storage in
the function UInt32 WinThreadBase::getAspect(void)
At line: pUint = (UInt32 *) TlsGetValue(_aspectKey);
The _aspectKey is 10, but windows returns NULL when calling TlsGetValue. I
know this function is already being called successfully multiple times with
the same _aspectKey value during the SceneFileHandler intialisation.
Error Message:
Unhandled exception at 0x00e46e69 (OSGSystemD.dll) in project.exe:
0xC0000005: Access violation reading location 0x00000000.
The library and application are both compiled with Multi-threaded Debug DLL,
using the standard support libraries. Both debug and release versions of my
application crash at the same place.
My code where the crash is occuring:
bool OpenSGObject:: LoadGeometryToScenegraph( const string &filename )
{
NodePtr nodeGeometry = SceneFileHandler::the().read( filename.c_str() );
// Crashes on this call...
if ( nodeGeometry == NullFC )
return false;
// Add node to scenegraph root
beginEditCP(root, Node::ChildrenFieldMask);
....etc...
Loading works correctly in the tutorial 10loading.cpp with the same VRML
file. I'm using the same include files, libraries, DLLs and C++
pre-processor options in my application, so I'm a bit mystified.
Any suggestions or ideas what this crash might indicate?
Could I somehow define OSG_ASPECT_USE_DECLSPEC rather than
OSG_ASPECT_USE_LOCALSTORAGE to get around this (I say this without knowing
anything about the internals of OpenSG...).
Thanks,
Dave Molyneaux
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