Binary package “libgles1-mesa” in ubuntu precise

free implementation of the OpenGL|ES 1.x API -- runtime

 OpenGL|ES is a cross-platform API for full-function 2D and 3D graphics on
 embedded systems - including consoles, phones, appliances and vehicles.
 It contains a subset of OpenGL plus a number of extensions for the
 special needs of embedded systems.
 .
 OpenGL|ES 1.x provides an API for fixed-function hardware.