+ GeneralInitOperation()
+ : GraphicsContextOperation(std::string("General init"))
+ {
+ }
+ void run(osg::GraphicsContext* gc)
+ {
+ SGPropertyNode* simRendering = fgGetNode("/sim/rendering");
+
+ simRendering->setStringValue("gl-vendor", (char*) glGetString(GL_VENDOR));
+ SG_LOG( SG_GENERAL, SG_INFO, glGetString(GL_VENDOR));
+
+ simRendering->setStringValue("gl-renderer", (char*) glGetString(GL_RENDERER));
+ SG_LOG( SG_GENERAL, SG_INFO, glGetString(GL_RENDERER));
+
+ simRendering->setStringValue("gl-version", (char*) glGetString(GL_VERSION));
+ SG_LOG( SG_GENERAL, SG_INFO, glGetString(GL_VERSION));
+
+ // Old hardware without support for OpenGL 2.0 does not support GLSL and
+ // glGetString returns NULL for GL_SHADING_LANGUAGE_VERSION.
+ //
+ // See http://flightgear.org/forums/viewtopic.php?f=17&t=19670&start=15#p181945
+ const char* glsl_version = (const char*) glGetString(GL_SHADING_LANGUAGE_VERSION);
+ if( !glsl_version )
+ glsl_version = "UNSUPPORTED";
+ simRendering->setStringValue("gl-shading-language-version", glsl_version);
+ SG_LOG( SG_GENERAL, SG_INFO, glsl_version);
+
+ GLint tmp;
+ glGetIntegerv( GL_MAX_TEXTURE_SIZE, &tmp );
+ simRendering->setIntValue("max-texture-size", tmp);
+
+ glGetIntegerv( GL_DEPTH_BITS, &tmp );
+ simRendering->setIntValue("depth-buffer-bits", tmp);
+ }
+};
+
+osg::ref_ptr<GUIInitOperation> initOp;
+