The 6-foot-7 Barry played 31 games with San Antonio last season and shot 43 percent (48-for-112) from 3-point range. A 13-year veteran, Barry will play for his sixth NBA team after stints with the Los Angeles Clippers, Miami Heat, Chicago Bulls, Seattle SuperSonics and the Spurs.
Barry's father, Rick, spent two seasons with the Rockets (1978-80) and his older brother, Jon, played for the team from 2004-06.
Barry, 36, was a member of San Antonio's championship teams, in the 2004-05 and 2006-07 seasons.
Among active players, Barry ranks eighth in career 3-point field goal percentage (.407) and sixth in career 3-pointers made (1,346). Barry won the NBA slam dunk contest in 1996. He was the league's most accurate 3-point shooter in 2000-01, making 48 percent (109-of-229).