GL_EXT_discard_framebuffer
GL_EXT_texture_compression_s3tc
GL_EXT_texture_filter_anisotropic
GL_EXT_texture_format_BGRA8888
GL_KHR_debug
GL_OES_depth32
GL_OES_mapbuffer
GL_OES_rgb8_rgba8
GL_OES_texture_border_clamp
