6c0df75803
It used to be done in ir_to_mesa, and that was kind of a bad place. I didn't change st_glsl_to_tgsi because there is some strange stuff happening in the code that generates glDrawPixels shaders. It looked like this would break horribly if I touched anything. Signed-off-by: Ian Romanick <ian.d.romanick@intel.com> Reviewed-by: Eric Anholt <eric@anholt.net> Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>