474     Rect* head;  member in android::Region::rasterizer
480         : bounds(INT_MAX, 0, INT_MIN, 0), storage(reg.mStorage), head(), tail(), cur() {  in rasterizer()
534     if (tail-head == ssize_t(span.size())) {  in flushSpan()
536         Rect const* q = head;  in flushSpan()
551         Rect* r = head;  in flushSpan()
561         head = tail - span.size();  in flushSpan()
710     Region::const_iterator head = dst.begin();  in boolean_operation()  local
714         if (head != tail) {  in boolean_operation()
716                     head->left != it.rect().fLeft ||       in boolean_operation()
717                     head->top != it.rect().fTop ||       in boolean_operation()
718                     head->right != it.rect().fRight ||       in boolean_operation()
719                     head->bottom != it.rect().fBottom  in boolean_operation()
728         head++;  in boolean_operation()
732     if (head != tail) {  in boolean_operation()
912     const_iterator head = begin();  in dump()  local
915     StringAppendF(&out, "  Region %s (this=%p, count=%" PRIdPTR ")\n", what, this, tail - head);  in dump()
916     while (head != tail) {  in dump()
917         StringAppendF(&out, "    [%3d, %3d, %3d, %3d]\n", head->left, head->top, head->right,  in dump()
918                       head->bottom);  in dump()
919         ++head;  in dump()
925     const_iterator head = begin();  in dump()  local
927     ALOGD("  Region %s (this=%p, count=%" PRIdPTR ")\n", what, this, tail-head);  in dump()
928     while (head != tail) {  in dump()
930                 head->left, head->top, head->right, head->bottom);  in dump()
931         head++;  in dump()