159             const typename Scanline1::cover_type* covers1;  in operator()  local
172                 covers1 = span1->covers;  in operator()
174                 if(span1->x < x) covers1 += x - span1->x;  in operator()
178                     cover = *covers1++ * *covers2++;  in operator()
209                 covers1 = span1->covers;  in operator()
210                 if(span1->x < x) covers1 += x - span1->x;  in operator()
213                     sl.add_cells(x, len, covers1);  in operator()
219                         cover = *covers1++ * *(span2->covers);  in operator()
271             const typename Scanline1::cover_type* covers1;  in operator()  local
284                 covers1 = span1->covers;  in operator()
286                 if(span1->x < x) covers1 += x - span1->x;  in operator()
291                                 (cover_mask - *covers1++) *   in operator()
325                 covers1 = span1->covers;  in operator()
326                 if(span1->x < x) covers1 += x - span1->x;  in operator()
336                                     (cover_mask - *covers1++) *   in operator()
442             const typename Scanline1::cover_type* covers1;  in operator()  local
455                 covers1 = span1->covers;  in operator()
457                 if(span1->x < x) covers1 += x - span1->x;  in operator()
461                     cover = XorFormula::calculate(*covers1++, *covers2++);  in operator()
481                 covers1 = span1->covers;  in operator()
482                 if(span1->x < x) covers1 += x - span1->x;  in operator()
485                     cover = XorFormula::calculate(*covers1++, *(span2->covers));  in operator()
531             const typename Scanline1::cover_type* covers1;  in operator()  local
544                 covers1 = span1->covers;  in operator()
546                 if(span1->x < x) covers1 += x - span1->x;  in operator()
550                     cover = *covers1++ * (cover_mask - *covers2++);  in operator()
582                 covers1 = span1->covers;  in operator()
583                 if(span1->x < x) covers1 += x - span1->x;  in operator()
588                         cover = *covers1++ * (cover_mask - *(span2->covers));  in operator()