OpenGL ES Environment Variables
GL_VENDOR	Hisilicon Technologies
GL_VERSION	OpenGL ES 2.0
GL_RENDERER	Immersion.16
GL_EXTENSIONS	GL_APPLE_texture_format_BGRA8888
GL_APPLE_texture_max_level
GL_ARM_rgba8
GL_EXT_blend_minmax
GL_EXT_debug_marker
GL_EXT_discard_framebuffer
GL_EXT_frag_depth
GL_EXT_multi_draw_arrays
GL_EXT_read_format_bgra
GL_EXT_texture_filter_anisotropic
GL_EXT_texture_format_BGRA8888
GL_EXT_texture_type_2_10_10_10_REV
GL_IMG_read_format
GL_OES_compressed_ETC1_RGB8_texture
GL_OES_compressed_paletted_texture
GL_OES_depth_texture
GL_OES_depth24
GL_OES_EGL_image
GL_OES_EGL_image_external
GL_OES_element_index_uint
GL_OES_fbo_render_mipmap
GL_OES_fragment_precision_high
GL_OES_get_program_binary
GL_OES_mapbuffer
GL_OES_packed_depth_stencil
GL_OES_rgb8_rgba8
GL_OES_standard_derivatives
GL_OES_stencil1
GL_OES_stencil4
GL_OES_texture_float
GL_OES_texture_half_float
GL_OES_texture_half_float_linear
GL_OES_texture_npot
GL_OES_vertex_half_float
GL_OES_vertex_type_10_10_10_2
GL_VIV_shader_binary
GL_VIV_timestamp
GL_MAX_TEXTURE_SIZE	8192
GL_MAX_VIEWPORT_WIDTH	8192
GL_MAX_VIEWPORT_HEIGHT	8192
GL_NUM_COMPRESSED_TEXTURE_FORMATS	15
GL_ALIASED_LINE_WIDTH_MIN	1
GL_ALIASED_LINE_WIDTH_MAX	8192
GL_ALIASED_POINT_SIZE_MIN	0
GL_ALIASED_POINT_SIZE_MAX	2048
Device: U9508 - SoC Huawei/Hisilicon technologies K3V2/1.4 ghz quadcore - GpU Hisilicon.Immersion.16/Vivante CG4000.