466 #define Coalesce(newReg, prevBand, curBand)				\  argument
467     if (curBand - prevBand == newReg->data->numRects - curBand) {	\
468 	prevBand = RegionCoalesce(newReg, prevBand, curBand);		\
523 #define	AppendRegions(newReg, r, rEnd)					\  argument
527 	RECTALLOC(newReg, newRects);					\
528 	memmove((char *)RegionTop(newReg),(char *)r, 			\
530 	newReg->data->numRects += newRects;				\
571 RegionOp(RegionPtr newReg,      /* Place to store result         */  in RegionOp()  argument
606         return RegionBreak(newReg);  in RegionOp()
626     if (((newReg == reg1) && (newSize > 1)) ||  in RegionOp()
627         ((newReg == reg2) && (numRects > 1))) {  in RegionOp()
628         oldData = newReg->data;  in RegionOp()
629         newReg->data = &RegionEmptyData;  in RegionOp()
635     if (!newReg->data)  in RegionOp()
636         newReg->data = &RegionEmptyData;  in RegionOp()
637     else if (newReg->data->size)  in RegionOp()
638         newReg->data->numRects = 0;  in RegionOp()
639     if (newSize > newReg->data->size)  in RegionOp()
640         if (!RegionRectAlloc(newReg, newSize))  in RegionOp()
697                     curBand = newReg->data->numRects;  in RegionOp()
698                     RegionAppendNonO(newReg, r1, r1BandEnd, top, bot);  in RegionOp()
699                     Coalesce(newReg, prevBand, curBand);  in RegionOp()
709                     curBand = newReg->data->numRects;  in RegionOp()
710                     RegionAppendNonO(newReg, r2, r2BandEnd, top, bot);  in RegionOp()
711                     Coalesce(newReg, prevBand, curBand);  in RegionOp()
726             curBand = newReg->data->numRects;  in RegionOp()
727             (*overlapFunc) (newReg, r1, r1BandEnd, r2, r2BandEnd, ytop, ybot,  in RegionOp()
729             Coalesce(newReg, prevBand, curBand);  in RegionOp()
754         curBand = newReg->data->numRects;  in RegionOp()
755         RegionAppendNonO(newReg, r1, r1BandEnd, max(r1y1, ybot), r1->y2);  in RegionOp()
756         Coalesce(newReg, prevBand, curBand);  in RegionOp()
758         AppendRegions(newReg, r1BandEnd, r1End);  in RegionOp()
764         curBand = newReg->data->numRects;  in RegionOp()
765         RegionAppendNonO(newReg, r2, r2BandEnd, max(r2y1, ybot), r2->y2);  in RegionOp()
766         Coalesce(newReg, prevBand, curBand);  in RegionOp()
768         AppendRegions(newReg, r2BandEnd, r2End);  in RegionOp()
773     if (!(numRects = newReg->data->numRects)) {  in RegionOp()
774         xfreeData(newReg);  in RegionOp()
775         newReg->data = &RegionEmptyData;  in RegionOp()
778         newReg->extents = *RegionBoxptr(newReg);  in RegionOp()
779         xfreeData(newReg);  in RegionOp()
780         newReg->data = NULL;  in RegionOp()
783         DOWNSIZE(newReg, numRects);  in RegionOp()