DOMA has been struck down as unconstitutional. Prop 8 case from California dismissed on standing grounds (initiative proponents have no cognizable injury distinct from the general population). I haven’t yet read thoroughly, but SCOTUSblog reports that neither finds a constitutional right to same-sex marriage.
Both 5-4, very different majorities. DOMA is Kennedy, Ginsburg, Breyer, Kagan, Sotomayor; Prop 8 is Roberts, Scalia, Ginsburg, Breyer, Kagan.