Lines Matching full:gray
962 if (sbit->gray == 0 || sbit->gray > png_ptr->usr_bit_depth)
967 buf[0] = sbit->gray;
1100 if (tran->gray >= (1 << png_ptr->bit_depth))
1106 png_save_uint_16(buf, tran->gray);
1172 if (back->gray >= (1 << png_ptr->bit_depth))
1178 png_save_uint_16(buf, back->gray);
