81ddbdaaba
I want split some meta.c code off to a separate file, so these functions
can't be static any more.
v2: Rebase on idr's changes, also expose setup_blit_shader,
blit_shader_table_cleanup, setup_vertex_objects,
setup_ff_tnl_for_blit.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org> (v1)