static void
miTreeObscured(
WindowPtr pParent )
{
WindowPtr pChild;
int oldVis;
pChild = pParent;
while (1)
{
if (pChild->viewable)
{
oldVis = pChild->visibility;
if (oldVis != (pChild->visibility = VisibilityFullyObscured) &&
((pChild->eventMask | wOtherEventMasks(pChild)) & VisibilityChangeMask))
SendVisibilityNotify(pChild);
if (pChild->firstChild)
{
pChild = pChild->firstChild;
continue;
}
}
while (!pChild->nextSib && (pChild != pParent))
pChild = pChild->parent;
if (pChild == pParent)
break;
pChild = pChild->nextSib;
}
}
void
miWindowExposures(WindowPtr pWin, RegionPtr prgn)
{
RegionPtr exposures = prgn;
if (prgn && !RegionNil(prgn)) {
RegionRec expRec;
int clientInterested =
(pWin->eventMask | wOtherEventMasks(pWin)) & ExposureMask;
if (clientInterested && (RegionNumRects(prgn) > RECTLIMIT)) {
/*
* If we have LOTS of rectangles, we decide to take the extents
* and force an exposure on that. This should require much less
* work overall, on both client and server. This is cheating, but
* isn't prohibited by the protocol ("spontaneous combustion" :-).
*/
BoxRec box = *RegionExtents(prgn);
exposures = &expRec;
RegionInit(exposures, &box, 1);
RegionReset(prgn, &box);
/* miPaintWindow doesn't clip, so we have to */
RegionIntersect(prgn, prgn, &pWin->clipList);
}
pWin->drawable.pScreen->PaintWindow(pWin, prgn, PW_BACKGROUND);
if (clientInterested)
miSendExposures(pWin, exposures,
pWin->drawable.x, pWin->drawable.y);
if (exposures == &expRec)
RegionUninit(exposures);
RegionEmpty(prgn);
}
}
/*
*-----------------------------------------------------------------------
* miComputeClips --
* Recompute the clipList, borderClip, exposed and borderExposed
* regions for pParent and its children. Only viewable windows are
* taken into account.
*
* Results:
* None.
*
* Side Effects:
* clipList, borderClip, exposed and borderExposed are altered.
* A VisibilityNotify event may be generated on the parent window.
*
*-----------------------------------------------------------------------
*/
static void
miComputeClips (
WindowPtr pParent,
ScreenPtr pScreen,
RegionPtr universe,
VTKind kind,
RegionPtr exposed ) /* for intermediate calculations */
{
int dx,
dy;
RegionRec childUniverse;
WindowPtr pChild;
int oldVis, newVis;
BoxRec borderSize;
RegionRec childUnion;
Bool overlap;
RegionPtr borderVisible;
/*
* Figure out the new visibility of this window.
* The extent of the universe should be the same as the extent of
* the borderSize region. If the window is unobscured, this rectangle
* will be completely inside the universe (the universe will cover it
* completely). If the window is completely obscured, none of the
* universe will cover the rectangle.
*/
borderSize.x1 = pParent->drawable.x - wBorderWidth(pParent);
borderSize.y1 = pParent->drawable.y - wBorderWidth(pParent);
dx = (int) pParent->drawable.x + (int) pParent->drawable.width + wBorderWidth(pParent);
if (dx > 32767)
dx = 32767;
borderSize.x2 = dx;
dy = (int) pParent->drawable.y + (int) pParent->drawable.height + wBorderWidth(pParent);
if (dy > 32767)
dy = 32767;
borderSize.y2 = dy;
#ifdef COMPOSITE
/*
* In redirected drawing case, reset universe to borderSize
*/
if (pParent->redirectDraw != RedirectDrawNone)
{
if (miSetRedirectBorderClipProc)
{
if (TreatAsTransparent (pParent))
RegionEmpty(universe);
(*miSetRedirectBorderClipProc) (pParent, universe);
}
RegionCopy(universe, &pParent->borderSize);
}
#endif
oldVis = pParent->visibility;
switch (RegionContainsRect(universe, &borderSize))
{
case rgnIN:
newVis = VisibilityUnobscured;
break;
case rgnPART:
newVis = VisibilityPartiallyObscured;
{
RegionPtr pBounding;
if ((pBounding = wBoundingShape (pParent)))
{
switch (miShapedWindowIn (universe, pBounding,
&borderSize,
pParent->drawable.x,
pParent->drawable.y))
{
case rgnIN:
newVis = VisibilityUnobscured;
break;
case rgnOUT:
newVis = VisibilityFullyObscured;
break;
}
}
}
break;
default:
newVis = VisibilityFullyObscured;
break;
}
pParent->visibility = newVis;
if (oldVis != newVis &&
((pParent->eventMask | wOtherEventMasks(pParent)) & VisibilityChangeMask))
SendVisibilityNotify(pParent);
dx = pParent->drawable.x - pParent->valdata->before.oldAbsCorner.x;
dy = pParent->drawable.y - pParent->valdata->before.oldAbsCorner.y;
/*
* avoid computations when dealing with simple operations
*/
switch (kind) {
case VTMap:
case VTStack:
case VTUnmap:
break;
case VTMove:
if ((oldVis == newVis) &&
((oldVis == VisibilityFullyObscured) ||
(oldVis == VisibilityUnobscured)))
{
pChild = pParent;
while (1)
{
if (pChild->viewable)
{
if (pChild->visibility != VisibilityFullyObscured)
{
RegionTranslate(&pChild->borderClip,
dx, dy);
RegionTranslate(&pChild->clipList,
dx, dy);
pChild->drawable.serialNumber = NEXT_SERIAL_NUMBER;
if (pScreen->ClipNotify)
(* pScreen->ClipNotify) (pChild, dx, dy);
}
if (pChild->valdata)
{
RegionNull(&pChild->valdata->after.borderExposed);
if (HasParentRelativeBorder(pChild))
{
RegionSubtract(&pChild->valdata->after.borderExposed,
&pChild->borderClip,
&pChild->winSize);
}
RegionNull(&pChild->valdata->after.exposed);
}
if (pChild->firstChild)
{
pChild = pChild->firstChild;
continue;
}
}
while (!pChild->nextSib && (pChild != pParent))
pChild = pChild->parent;
if (pChild == pParent)
break;
pChild = pChild->nextSib;
}
return;
}
/* fall through */
default:
/*
* To calculate exposures correctly, we have to translate the old
* borderClip and clipList regions to the window's new location so there
* is a correspondence between pieces of the new and old clipping regions.
*/
if (dx || dy)
{
/*
* We translate the old clipList because that will be exposed or copied
* if gravity is right.
*/
RegionTranslate(&pParent->borderClip, dx, dy);
RegionTranslate(&pParent->clipList, dx, dy);
}
break;
case VTBroken:
RegionEmpty(&pParent->borderClip);
RegionEmpty(&pParent->clipList);
break;
}
borderVisible = pParent->valdata->before.borderVisible;
RegionNull(&pParent->valdata->after.borderExposed);
RegionNull(&pParent->valdata->after.exposed);
/*
* Since the borderClip must not be clipped by the children, we do
* the border exposure first...
*
* 'universe' is the window's borderClip. To figure the exposures, remove
* the area that used to be exposed from the new.
* This leaves a region of pieces that weren't exposed before.
*/
if (HasBorder (pParent))
{
if (borderVisible)
{
/*
* when the border changes shape, the old visible portions
* of the border will be saved by DIX in borderVisible --
* use that region and destroy it
*/
RegionSubtract(exposed, universe, borderVisible);
RegionDestroy(borderVisible);
}
else
{
RegionSubtract(exposed, universe, &pParent->borderClip);
}
if (HasParentRelativeBorder(pParent) && (dx || dy))
RegionSubtract(&pParent->valdata->after.borderExposed,
universe,
&pParent->winSize);
else
RegionSubtract(&pParent->valdata->after.borderExposed,
exposed, &pParent->winSize);
RegionCopy(&pParent->borderClip, universe);
/*
* To get the right clipList for the parent, and to make doubly sure
* that no child overlaps the parent's border, we remove the parent's
* border from the universe before proceeding.
*/
RegionIntersect(universe, universe, &pParent->winSize);
}
else
RegionCopy(&pParent->borderClip, universe);
if ((pChild = pParent->firstChild) && pParent->mapped)
{
RegionNull(&childUniverse);
RegionNull(&childUnion);
if ((pChild->drawable.y < pParent->lastChild->drawable.y) ||
((pChild->drawable.y == pParent->lastChild->drawable.y) &&
(pChild->drawable.x < pParent->lastChild->drawable.x)))
{
for (; pChild; pChild = pChild->nextSib)
{
if (pChild->viewable && !TreatAsTransparent(pChild))
RegionAppend(&childUnion, &pChild->borderSize);
}
}
else
{
for (pChild = pParent->lastChild; pChild; pChild = pChild->prevSib)
{
if (pChild->viewable && !TreatAsTransparent(pChild))
RegionAppend(&childUnion, &pChild->borderSize);
}
}
RegionValidate(&childUnion, &overlap);
for (pChild = pParent->firstChild;
pChild;
pChild = pChild->nextSib)
{
if (pChild->viewable) {
/*
* If the child is viewable, we want to remove its extents
* from the current universe, but we only re-clip it if
* it's been marked.
*/
if (pChild->valdata) {
/*
* Figure out the new universe from the child's
* perspective and recurse.
*/
RegionIntersect(&childUniverse,
universe,
&pChild->borderSize);
miComputeClips (pChild, pScreen, &childUniverse, kind,
exposed);
}
/*
* Once the child has been processed, we remove its extents
* from the current universe, thus denying its space to any
* other sibling.
*/
if (overlap && !TreatAsTransparent (pChild))
RegionSubtract(universe, universe,
&pChild->borderSize);
}
}
if (!overlap)
RegionSubtract(universe, universe, &childUnion);
RegionUninit(&childUnion);
RegionUninit(&childUniverse);
} /* if any children */
/*
* 'universe' now contains the new clipList for the parent window.
*
* To figure the exposure of the window we subtract the old clip from the
* new, just as for the border.
*/
if (oldVis == VisibilityFullyObscured ||
oldVis == VisibilityNotViewable)
{
RegionCopy(&pParent->valdata->after.exposed, universe);
}
else if (newVis != VisibilityFullyObscured &&
newVis != VisibilityNotViewable)
{
RegionSubtract(&pParent->valdata->after.exposed,
universe, &pParent->clipList);
}
/* HACK ALERT - copying contents of regions, instead of regions */
{
RegionRec tmp;
tmp = pParent->clipList;
pParent->clipList = *universe;
*universe = tmp;
}
#ifdef NOTDEF
RegionCopy(&pParent->clipList, universe);
#endif
pParent->drawable.serialNumber = NEXT_SERIAL_NUMBER;
if (pScreen->ClipNotify)
(* pScreen->ClipNotify) (pParent, dx, dy);
}
int
LbxSendConnSetup(ClientPtr client,
char *reason)
{
int dlength;
int i, ndex, lim, wndex;
CARD32 dataBuf[16];
xLbxConnSetupPrefix csp;
NewClientInfoRec nci;
LbxProxyPtr proxy = LbxProxy(client);
if (reason) {
SendConnSetup(client, reason);
LbxForceOutput(proxy); /* expedient to avoid another state variable */
return (client->noClientException);
}
IncrementClientCount();
client->requestVector = client->swapped ? SwappedProcVector : ProcVector;
client->sequence = 0;
dataBuf[0] = client->clientAsMask;
csp.success = TRUE;
csp.majorVersion = connSetupPrefix.majorVersion;
csp.minorVersion = connSetupPrefix.minorVersion;
csp.tag = 0;
#ifdef XAPPGROUP
if (!client->appgroup) {
#endif
csp.changeType = 1; /* LbxNormalDeltas */
csp.length = 2 + /* tag + resource-id-base */
screenInfo.numScreens; /* input-mask per screen */
wndex = 0; ndex = 1; lim = screenInfo.numScreens;
#ifdef XAPPGROUP
} else {
csp.changeType = 2; /* LbxAppGroupDeltas */
csp.length = 7 + /* tag, res-id-base, root, visual, colormap, b&w-pix */
1 + screenInfo.numScreens - screenInfo.numVideoScreens;
XagGetDeltaInfo (client, &dataBuf[1]);
for (i = 0; i < MAXSCREENS; i++) {
if ((CARD32) WindowTable[i]->drawable.id == dataBuf[1]) {
dataBuf[6] = WindowTable[i]->eventMask | wOtherEventMasks(WindowTable[i]);
break;
}
}
wndex = screenInfo.numVideoScreens;
ndex = 7;
lim = screenInfo.numScreens - screenInfo.numVideoScreens;
}
#endif
for (i = 0; i < lim; i++, ndex++, wndex++) {
dataBuf[ndex] =
WindowTable[wndex]->eventMask | wOtherEventMasks(WindowTable[wndex]);
}
dlength = (csp.length - 1) << 2;
if (LbxProxyClient(proxy)->swapped) {
swaps(&csp.length, i);
}
if (client->swapped) {
LbxWriteSConnSetupPrefix(client, &csp);
SwapLongs(dataBuf, (1 + screenInfo.numScreens));
WriteToClient(client, dlength, (pointer) dataBuf);
} else {
WriteToClient(client, sizeof(xLbxConnSetupPrefix), (char *) &csp);
WriteToClient(client, dlength, (pointer) dataBuf);
}
LbxForceOutput(proxy); /* expedient to avoid another state variable */
client->clientState = ClientStateRunning;
if (ClientStateCallback) {
if (LbxProxyClient(proxy)->swapped != client->swapped) {
swaps(&csp.length, i);
}
nci.client = client;
nci.prefix = (xConnSetupPrefix*) &csp;
nci.setup = (xConnSetup *) ConnectionInfo;
CallCallbacks(&ClientStateCallback, (pointer) &nci);
}
return client->noClientException;
}