sr=brendan. Heavily optimizes all the bit-twiddling in mask generation which was 1/2 of where the CPU time was going. git-svn-id: svn://10.0.0.236/trunk@114860 18797224-902f-48f8-a5cc-f745e15eee43
sr=brendan. Heavily optimizes all the bit-twiddling in mask generation which was 1/2 of where the CPU time was going. git-svn-id: svn://10.0.0.236/trunk@114860 18797224-902f-48f8-a5cc-f745e15eee43