FGFS-4.1/OpenSceneGraph
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Added catch for NULL return from glGetString( GL_VERSION );

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This commit is contained in:
Robert Osfield
2005-10-29 10:04:35 +00:00
parent d1de669f03
commit 79a7f8c729
1 changed files with 9 additions and 1 deletions
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10
src/osg/Texture.cpp
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@@ -1323,7 +1323,15 @@ void Texture::Extensions::lowestCommonDenominator(const Extensions& rhs)
void Texture::Extensions::setupGLExtensions(unsigned int contextID)
{
float glVersion = atof( (const char *)glGetString( GL_VERSION ) );
const char* version = (const char*) glGetString( GL_VERSION );
if (!version)
{
osg::notify(osg::FATAL)<<"Error: In Texture::Extensions::setupGLExtensions(..) OpenGL version test failed, requires valid graphics context."<<std::endl;
return;
}
float glVersion = atof( (const char *)version );
const char* renderer = (const char*) glGetString(GL_RENDERER);
std::string rendererString(renderer ? renderer : "");