text: GLX_ARB_create_context_robustness
  http://www.opengl.org/registry/specs/ARB/glx_create_context_robustness.txt
  GLX_ARB_create_context_robustness
  	GLX_CONTEXT_ROBUST_ACCESS_BIT_ARB 0x00000004
  	GLX_LOSE_CONTEXT_ON_RESET_ARB 0x8252
  	GLX_CONTEXT_RESET_NOTIFICATION_STRATEGY_ARB 0x8256
  	GLX_NO_RESET_NOTIFICATION_ARB 0x8261
  