const int max_color = FFMAX3(r, g, b); \
const int is_white = (r > 1<<(nbits-1) && g > 1<<(nbits-1) && b > 1<<(nbits-1)); \
const int is_neutral = (r || g || b) && \
- r != (1<<nbits)-1 && g != (1<<nbits)-1 && b != (1<<nbits)-1; \
+ (r != (1<<nbits)-1 || g != (1<<nbits)-1 || b != (1<<nbits)-1); \
const int is_black = (r < 1<<(nbits-1) && g < 1<<(nbits-1) && b < 1<<(nbits-1)); \
const uint32_t range_flag = (r == max_color) << RANGE_REDS \
| (r == min_color) << RANGE_CYANS \