direct rendering: Yes
    GLX_MESA_multithread_makecurrent, GLX_MESA_query_renderer,
    GLX_MESA_multithread_makecurrent, GLX_MESA_query_renderer,
OpenGL renderer string: Mesa DRI Intel(R) Haswell Mobile
    GL_ARB_conditional_render_inverted, GL_ARB_conservative_depth,
    GL_NV_conditional_render, GL_NV_depth_clamp, GL_NV_packed_depth_stencil,
    GL_ARB_conditional_render_inverted, GL_ARB_conservative_depth,
    GL_NV_blend_square, GL_NV_conditional_render, GL_NV_depth_clamp,
    GL_OES_fbo_render_mipmap, GL_OES_get_program_binary, GL_OES_mapbuffer,