Christian Convey wrote: > I'm porting to OS X 10.5 an app that works just fine on Linux. I'm using > FLTK 1.1.7. > > We have a class (MarineViewer) that subclasses from Fl_Gl_Window. In > MarineViewer's constructor, we have this code: > > m_textures = new GLuint[1]; > ... > glGenTextures(1, m_textures); > > The call to glGenTextures is generating a bus error. I think it's related to > something I found while debugging: If I call "this->context()" from within > that same constructor, I get back the value NULL. I assume this means that > for some reason, FLTK isn't able to get an OpenGL context for my program to > use. > > Any idea why I might be seeing this? Any idea how I can fix it?
If the code you're running needs a valid gl context, try moving this code to the !valid() section of your draw() method, eg: void MarineViewer::draw() { if ( ! valid() ) { .. glGenTextures(1, m_textures); .. } } By that time FLTK will have created the actual window and context. I'm thinking FLTK doesn't actually create the GL window/context until after the constructors have been called, and the program has started the FLTK event loop. _______________________________________________ fltk-opengl mailing list fltk-opengl@easysw.com http://lists.easysw.com/mailman/listinfo/fltk-opengl