static int
TellChanged (WindowPtr pWin, pointer value)
{
RREventPtr *pHead, pRREvent;
ClientPtr client;
ScreenPtr pScreen = pWin->drawable.pScreen;
rrScrPriv(pScreen);
int i;
dixLookupResourceByType((pointer *)&pHead, pWin->drawable.id,
RREventType, serverClient, DixReadAccess);
if (!pHead)
return WT_WALKCHILDREN;
for (pRREvent = *pHead; pRREvent; pRREvent = pRREvent->next)
{
client = pRREvent->client;
if (client == serverClient || client->clientGone)
continue;
if (pRREvent->mask & RRScreenChangeNotifyMask)
RRDeliverScreenEvent (client, pWin, pScreen);
if (pRREvent->mask & RRCrtcChangeNotifyMask)
{
for (i = 0; i < pScrPriv->numCrtcs; i++)
{
RRCrtcPtr crtc = pScrPriv->crtcs[i];
if (crtc->changed)
RRDeliverCrtcEvent (client, pWin, crtc);
}
}
if (pRREvent->mask & RROutputChangeNotifyMask)
{
for (i = 0; i < pScrPriv->numOutputs; i++)
{
RROutputPtr output = pScrPriv->outputs[i];
if (output->changed)
RRDeliverOutputEvent (client, pWin, output);
}
}
}
return WT_WALKCHILDREN;
}
static int
ProcRRSelectInput(ClientPtr client)
{
REQUEST(xRRSelectInputReq);
rrClientPriv(client);
RRTimesPtr pTimes;
WindowPtr pWin;
RREventPtr pRREvent, *pHead;
XID clientResource;
int rc;
REQUEST_SIZE_MATCH(xRRSelectInputReq);
rc = dixLookupWindow(&pWin, stuff->window, client, DixReceiveAccess);
if (rc != Success)
return rc;
rc = dixLookupResourceByType((void **) &pHead, pWin->drawable.id,
RREventType, client, DixWriteAccess);
if (rc != Success && rc != BadValue)
return rc;
if (stuff->enable & (RRScreenChangeNotifyMask |
RRCrtcChangeNotifyMask |
RROutputChangeNotifyMask |
RROutputPropertyNotifyMask |
RRProviderPropertyNotifyMask)) {
ScreenPtr pScreen = pWin->drawable.pScreen;
rrScrPriv(pScreen);
pRREvent = NULL;
if (pHead) {
/* check for existing entry. */
for (pRREvent = *pHead; pRREvent; pRREvent = pRREvent->next)
if (pRREvent->client == client)
break;
}
if (!pRREvent) {
/* build the entry */
pRREvent = (RREventPtr) malloc(sizeof(RREventRec));
if (!pRREvent)
return BadAlloc;
pRREvent->next = 0;
pRREvent->client = client;
pRREvent->window = pWin;
pRREvent->mask = stuff->enable;
/*
* add a resource that will be deleted when
* the client goes away
*/
clientResource = FakeClientID(client->index);
pRREvent->clientResource = clientResource;
if (!AddResource(clientResource, RRClientType, (void *) pRREvent))
return BadAlloc;
/*
* create a resource to contain a pointer to the list
* of clients selecting input. This must be indirect as
* the list may be arbitrarily rearranged which cannot be
* done through the resource database.
*/
if (!pHead) {
pHead = (RREventPtr *) malloc(sizeof(RREventPtr));
if (!pHead ||
!AddResource(pWin->drawable.id, RREventType,
(void *) pHead)) {
FreeResource(clientResource, RT_NONE);
return BadAlloc;
}
*pHead = 0;
}
pRREvent->next = *pHead;
*pHead = pRREvent;
}
/*
* Now see if the client needs an event
*/
if (pScrPriv) {
pTimes = &((RRTimesPtr) (pRRClient + 1))[pScreen->myNum];
if (CompareTimeStamps(pTimes->setTime,
pScrPriv->lastSetTime) != 0 ||
CompareTimeStamps(pTimes->configTime,
pScrPriv->lastConfigTime) != 0) {
if (pRREvent->mask & RRScreenChangeNotifyMask) {
RRDeliverScreenEvent(client, pWin, pScreen);
}
if (pRREvent->mask & RRCrtcChangeNotifyMask) {
int i;
for (i = 0; i < pScrPriv->numCrtcs; i++) {
RRDeliverCrtcEvent(client, pWin, pScrPriv->crtcs[i]);
}
}
if (pRREvent->mask & RROutputChangeNotifyMask) {
int i;
for (i = 0; i < pScrPriv->numOutputs; i++) {
RRDeliverOutputEvent(client, pWin,
pScrPriv->outputs[i]);
}
}
/* We don't check for RROutputPropertyNotifyMask, as randrproto.txt doesn't
* say if there ought to be notifications of changes to output properties
* if those changes occurred before the time RRSelectInput is called.
*/
}
}
}
else if (stuff->enable == 0) {
/* delete the interest */
if (pHead) {
RREventPtr pNewRREvent = 0;
for (pRREvent = *pHead; pRREvent; pRREvent = pRREvent->next) {
if (pRREvent->client == client)
break;
pNewRREvent = pRREvent;
}
if (pRREvent) {
FreeResource(pRREvent->clientResource, RRClientType);
if (pNewRREvent)
pNewRREvent->next = pRREvent->next;
else
*pHead = pRREvent->next;
free(pRREvent);
}
}
}
else {
client->errorValue = stuff->enable;
return BadValue;
}
return Success;
}
