Returns a string representing adapter id (vendor, renderer, version). Must be called on the rendering thread.

Returns:String

an id string for the adapter

Invalidates the currentContext field to ensure that we properly revalidate the OGLContext (make it current, etc.) next time through the validate() method. This is typically invoked from methods that affect the current context state (e.g. disposing a context or surface).

Convenience method that delegates to setScratchSurface() below.

Makes the given GraphicsConfig's context current to its associated "scratch surface". Each GraphicsConfig maintains a native context (GLXContext on Unix, HGLRC on Windows) as well as a native pbuffer known as the "scratch surface". By making the context current to the scratch surface, we are assured that we have a current context for the relevant GraphicsConfig, and can therefore perform operations depending on the capabilities of that GraphicsConfig. For example, if the GraphicsConfig supports the GL_ARB_texture_non_power_of_two extension, then we should be able to make a non-pow2 texture for this GraphicsConfig once we make the context current to the scratch surface. This method should be used for operations with an OpenGL texture as the destination surface (e.g. a sw->texture blit loop), or in those situations where we may not otherwise have a current context (e.g. when disposing a texture-based surface).