And move the shader mangling code into a single place instead of having a copy in glcolorconvert and glviewconvert. https://bugzilla.gnome.org/show_bug.cgi?id=765266
And move the shader mangling code into a single place instead of having a copy in glcolorconvert and glviewconvert. https://bugzilla.gnome.org/show_bug.cgi?id=765266