implement the features.
+OpenGL Core and Compatibility context support
+
+OpenGL 3.1 and later versions are only supported with the Core profile.
+There are no plans to support GL_ARB_compatibility. The last supported OpenGL
+version with all deprecated features is 3.0. Some of the later GL features
+are exposed in the 3.0 context as extensions.
+
+
Feature Status
----------------------------------------------------- ------------------------
GL_ARB_tessellation_shader not started
GL_ARB_texture_buffer_object_rgb32 DONE (i965, softpipe)
GL_ARB_texture_cube_map_array DONE (i965, softpipe)
-GL_ARB_texture_gather started (Maxence, Chris)
+GL_ARB_texture_gather DONE (i965)
GL_ARB_transform_feedback2 DONE
GL_ARB_transform_feedback3 DONE