HIST_C0_BITS      248 gd/libgd/gd_topal.c #define HIST_C0_ELEMS  (1<<HIST_C0_BITS)
HIST_C0_BITS      253 gd/libgd/gd_topal.c #define C0_SHIFT  (BITS_IN_JSAMPLE-HIST_C0_BITS)
HIST_C0_BITS      901 gd/libgd/gd_topal.c #define BOX_C0_LOG  (HIST_C0_BITS-3)