Supported extensions:
OpenGL ES profile version string: OpenGL ES 3.1 Mesa 17.2.8
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.10
OpenGL ES profile extensions:
GL_ANGLE_texture_compression_dxt3, GL_ANGLE_texture_compression_dxt5,
GL_APPLE_texture_max_level, GL_EXT_base_instance,
GL_EXT_blend_func_extended, GL_EXT_blend_minmax, GL_EXT_buffer_storage,
GL_EXT_clip_cull_distance, GL_EXT_color_buffer_float,
GL_EXT_compressed_ETC1_RGB8_sub_texture, GL_EXT_copy_image,
GL_EXT_discard_framebuffer, GL_EXT_draw_buffers,
GL_EXT_draw_buffers_indexed, GL_EXT_draw_elements_base_vertex,
GL_EXT_frag_depth, GL_EXT_geometry_point_size, GL_EXT_geometry_shader,
GL_EXT_gpu_shader5, GL_EXT_map_buffer_range, GL_EXT_multi_draw_arrays,
GL_EXT_polygon_offset_clamp, GL_EXT_primitive_bounding_box,
GL_EXT_read_format_bgra, GL_EXT_robustness,
GL_EXT_separate_shader_objects, GL_EXT_shader_integer_mix,
GL_EXT_shader_io_blocks, GL_EXT_tessellation_point_size,
GL_EXT_tessellation_shader, GL_EXT_texture_border_clamp,
GL_EXT_texture_buffer, GL_EXT_texture_compression_dxt1,
GL_EXT_texture_cube_map_array, GL_EXT_texture_filter_anisotropic,
GL_EXT_texture_format_BGRA8888, GL_EXT_texture_rg,
GL_EXT_texture_sRGB_decode, GL_EXT_texture_type_2_10_10_10_REV,
GL_EXT_unpack_subimage, GL_KHR_context_flush_control, GL_KHR_debug,
GL_KHR_no_error, GL_KHR_robust_buffer_access_behavior, GL_KHR_robustness,
GL_MESA_shader_integer_functions, GL_NV_draw_buffers,
GL_NV_fbo_color_attachments, GL_NV_image_formats, GL_NV_read_buffer,
GL_NV_read_depth, GL_NV_read_depth_stencil, GL_NV_read_stencil,
GL_OES_EGL_image, GL_OES_EGL_image_external, GL_OES_EGL_sync,
GL_OES_compressed_ETC1_RGB8_texture, GL_OES_copy_image, GL_OES_depth24,
GL_OES_depth_texture, GL_OES_depth_texture_cube_map,
GL_OES_draw_buffers_indexed, GL_OES_draw_elements_base_vertex,
GL_OES_element_index_uint, GL_OES_fbo_render_mipmap,
GL_OES_geometry_point_size, GL_OES_geometry_shader,
GL_OES_get_program_binary, GL_OES_gpu_shader5, GL_OES_mapbuffer,
GL_OES_packed_depth_stencil, GL_OES_primitive_bounding_box,
GL_OES_rgb8_rgba8, GL_OES_sample_shading, GL_OES_sample_variables,
GL_OES_shader_image_atomic, GL_OES_shader_io_blocks,
GL_OES_shader_multisample_interpolation, GL_OES_standard_derivatives,
GL_OES_stencil8, GL_OES_surfaceless_context,
GL_OES_tessellation_point_size, GL_OES_tessellation_shader,
GL_OES_texture_3D, GL_OES_texture_border_clamp, GL_OES_texture_buffer,
GL_OES_texture_cube_map_array, GL_OES_texture_float,
GL_OES_texture_float_linear, GL_OES_texture_half_float,
GL_OES_texture_half_float_linear, GL_OES_texture_npot,
GL_OES_texture_stencil8, GL_OES_texture_storage_multisample_2d_array,
GL_OES_vertex_array_object, GL_OES_vertex_half_float,
GL_OES_viewport_array