_X_EXPORT int
SetClipRects(GCPtr pGC, int xOrigin, int yOrigin, int nrects,
xRectangle *prects, int ordering)
{
int newct, size;
xRectangle *prectsNew;
newct = VerifyRectOrder(nrects, prects, ordering);
if (newct < 0)
return(BadMatch);
size = nrects * sizeof(xRectangle);
prectsNew = (xRectangle *) xalloc(size);
if (!prectsNew && size)
return BadAlloc;
pGC->serialNumber |= GC_CHANGE_SERIAL_BIT;
pGC->clipOrg.x = xOrigin;
pGC->stateChanges |= GCClipXOrigin;
pGC->clipOrg.y = yOrigin;
pGC->stateChanges |= GCClipYOrigin;
if (size)
memmove((char *)prectsNew, (char *)prects, size);
(*pGC->funcs->ChangeClip)(pGC, newct, (pointer)prectsNew, nrects);
if (pGC->funcs->ChangeGC)
(*pGC->funcs->ChangeGC) (pGC, GCClipXOrigin|GCClipYOrigin|GCClipMask);
return Success;
}
static int
ProcShapeRectangles(ClientPtr client)
{
WindowPtr pWin;
REQUEST(xShapeRectanglesReq);
xRectangle *prects;
int nrects, ctype, rc;
RegionPtr srcRgn;
RegionPtr *destRgn;
CreateDftPtr createDefault;
REQUEST_AT_LEAST_SIZE(xShapeRectanglesReq);
UpdateCurrentTime();
rc = dixLookupWindow(&pWin, stuff->dest, client, DixSetAttrAccess);
if (rc != Success)
return rc;
switch (stuff->destKind) {
case ShapeBounding:
createDefault = CreateBoundingShape;
break;
case ShapeClip:
createDefault = CreateClipShape;
break;
case ShapeInput:
createDefault = CreateBoundingShape;
break;
default:
client->errorValue = stuff->destKind;
return BadValue;
}
if ((stuff->ordering != Unsorted) && (stuff->ordering != YSorted) &&
(stuff->ordering != YXSorted) && (stuff->ordering != YXBanded)) {
client->errorValue = stuff->ordering;
return BadValue;
}
nrects = ((stuff->length << 2) - sizeof(xShapeRectanglesReq));
if (nrects & 4)
return BadLength;
nrects >>= 3;
prects = (xRectangle *) &stuff[1];
ctype = VerifyRectOrder(nrects, prects, (int) stuff->ordering);
if (ctype < 0)
return BadMatch;
srcRgn = RegionFromRects(nrects, prects, ctype);
if (!pWin->optional)
MakeWindowOptional(pWin);
switch (stuff->destKind) {
case ShapeBounding:
destRgn = &pWin->optional->boundingShape;
break;
case ShapeClip:
destRgn = &pWin->optional->clipShape;
break;
case ShapeInput:
destRgn = &pWin->optional->inputShape;
break;
default:
return BadValue;
}
return RegionOperate(client, pWin, (int) stuff->destKind,
destRgn, srcRgn, (int) stuff->op,
stuff->xOff, stuff->yOff, createDefault);
}
