BITS_PER_SUM      187 source/common/pixel.cpp #define BITS_PER_SUM (8 * sizeof(sum_t))
BITS_PER_SUM       78 source/common/ppc/pixel_altivec.cpp #define BITS_PER_SUM (8 * sizeof(sum_t))
BITS_PER_SUM       84 source/common/ppc/ppccommon.h #define BITS_PER_SUM (8 * sizeof(sum_t))