394     Rect* head;  member in android::Region::rasterizer
400         : bounds(INT_MAX, 0, INT_MIN, 0), storage(reg.mStorage), head(), tail(), cur() {  in rasterizer()
442         if (tail-head == ssize_t(span.size())) {  in flushSpan()
444             Rect const* q = head;  in flushSpan()
458             Rect* r = head;  in flushSpan()
468             head = tail - span.size();  in flushSpan()
607     Region::const_iterator head = dst.begin();  in boolean_operation()  local
611         if (head != tail) {  in boolean_operation()
613                     head->left != it.rect().fLeft ||       in boolean_operation()
614                     head->top != it.rect().fTop ||       in boolean_operation()
615                     head->right != it.rect().fRight ||       in boolean_operation()
616                     head->bottom != it.rect().fBottom  in boolean_operation()
625         head++;  in boolean_operation()
629     if (head != tail) {  in boolean_operation()
795     const_iterator head = begin();  in dump()  local
802             what, this, tail-head);  in dump()
804     while (head != tail) {  in dump()
806                 head->left, head->top, head->right, head->bottom);  in dump()
808         head++;  in dump()
815     const_iterator head = begin();  in dump()  local
817     ALOGD("  Region %s (this=%p, count=%d)\n", what, this, tail-head);  in dump()
818     while (head != tail) {  in dump()
820                 head->left, head->top, head->right, head->bottom);  in dump()
821         head++;  in dump()