libGL: Could not open display. Trying framebuffer.
libGL:loaded: libbcm_host.so
libGL:loaded: libvcos.so
libGL:loaded: /opt/vc/lib/libGLESv1_CM.so
libGL:loaded: libEGL.so
libGL: built on Dec 31 2015 11:05:22
GL_RENDERER   = VideoCore IV HW
GL_VERSION    = 1.4 glshim wrapper
GL_VENDOR     = Broadcom
GL_EXTENSIONS = GL_ARB_multitexture GL_ARB_texture_cube_map GL_EXT_secondary_color GL_EXT_texture_env_combine GL_EXT_texture_env_dot3 GL_EXT_blend_color GL_EXT_blend_equation_separate GL_EXT_blend_func_separate GL_EXT_blend_logic_op GL_EXT_blend_subtract 
VisualID 33, 0x21