HIST_C0_BITS      137 jquant2.c      #define HIST_C0_ELEMS  (1<<HIST_C0_BITS)
HIST_C0_BITS      142 jquant2.c      #define C0_SHIFT  (BITS_IN_JSAMPLE-HIST_C0_BITS)
HIST_C0_BITS      624 jquant2.c      #define BOX_C0_LOG  (HIST_C0_BITS-3)