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xserver-multidpi/randr/rrscreen.c
Keith Packard 953a9ef949 Track physical screen size and send out updates when that changes. 
Events and internal data structures need to be updated whenever the physical
or pixel size of the screen changes. The code was ignoring the physical
size, so changing only that would not be registered anywhere.
(cherry picked from f42e3cea23 commit)
2007-01-02 09:18:50 +11:00

952 lines
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/*
* Copyright © 2006 Keith Packard
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that copyright
* notice and this permission notice appear in supporting documentation, and
* that the name of the copyright holders not be used in advertising or
* publicity pertaining to distribution of the software without specific,
* written prior permission. The copyright holders make no representations
* about the suitability of this software for any purpose. It is provided "as
* is" without express or implied warranty.
*
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
* OF THIS SOFTWARE.
*/
#include "randrstr.h"
extern char *ConnectionInfo;
static int padlength[4] = {0, 3, 2, 1};
/*
* Edit connection information block so that new clients
* see the current screen size on connect
*/
static void
RREditConnectionInfo (ScreenPtr pScreen)
{
xConnSetup *connSetup;
char *vendor;
xPixmapFormat *formats;
xWindowRoot *root;
xDepth *depth;
xVisualType *visual;
int screen = 0;
int d;
connSetup = (xConnSetup *) ConnectionInfo;
vendor = (char *) connSetup + sizeof (xConnSetup);
formats = (xPixmapFormat *) ((char *) vendor +
connSetup->nbytesVendor +
padlength[connSetup->nbytesVendor & 3]);
root = (xWindowRoot *) ((char *) formats +
sizeof (xPixmapFormat) * screenInfo.numPixmapFormats);
while (screen != pScreen->myNum)
{
depth = (xDepth *) ((char *) root +
sizeof (xWindowRoot));
for (d = 0; d < root->nDepths; d++)
{
visual = (xVisualType *) ((char *) depth +
sizeof (xDepth));
depth = (xDepth *) ((char *) visual +
depth->nVisuals * sizeof (xVisualType));
}
root = (xWindowRoot *) ((char *) depth);
screen++;
}
root->pixWidth = pScreen->width;
root->pixHeight = pScreen->height;
root->mmWidth = pScreen->mmWidth;
root->mmHeight = pScreen->mmHeight;
}
void
RRSendConfigNotify (ScreenPtr pScreen)
{
WindowPtr pWin = WindowTable[pScreen->myNum];
xEvent event;
event.u.u.type = ConfigureNotify;
event.u.configureNotify.window = pWin->drawable.id;
event.u.configureNotify.aboveSibling = None;
event.u.configureNotify.x = 0;
event.u.configureNotify.y = 0;
/* XXX xinerama stuff ? */
event.u.configureNotify.width = pWin->drawable.width;
event.u.configureNotify.height = pWin->drawable.height;
event.u.configureNotify.borderWidth = wBorderWidth (pWin);
event.u.configureNotify.override = pWin->overrideRedirect;
DeliverEvents(pWin, &event, 1, NullWindow);
}
void
RRDeliverScreenEvent (ClientPtr client, WindowPtr pWin, ScreenPtr pScreen)
{
rrScrPriv (pScreen);
xRRScreenChangeNotifyEvent se;
RRCrtcPtr crtc = pScrPriv->numCrtcs ? pScrPriv->crtcs[0] : NULL;
RROutputPtr output = pScrPriv->numOutputs ? pScrPriv->outputs[0] : NULL;
RRModePtr mode = crtc ? crtc->mode : NULL;
WindowPtr pRoot = WindowTable[pScreen->myNum];
int i;
se.type = RRScreenChangeNotify + RREventBase;
se.rotation = (CARD8) (crtc ? crtc->rotation : RR_Rotate_0);
se.timestamp = pScrPriv->lastSetTime.milliseconds;
se.sequenceNumber = client->sequence;
se.configTimestamp = pScrPriv->lastConfigTime.milliseconds;
se.root = pRoot->drawable.id;
se.window = pWin->drawable.id;
#ifdef RENDER
se.subpixelOrder = PictureGetSubpixelOrder (pScreen);
#else
se.subpixelOrder = SubPixelUnknown;
#endif
se.sequenceNumber = client->sequence;
if (mode)
{
se.sizeID = -1;
for (i = 0; i < output->numModes; i++)
if (mode == output->modes[i])
{
se.sizeID = i;
break;
}
se.widthInPixels = mode->mode.width;
se.heightInPixels = mode->mode.height;
se.widthInMillimeters = pScreen->mmWidth;
se.heightInMillimeters = pScreen->mmHeight;
}
else
{
/*
* This "shouldn't happen", but a broken DDX can
* forget to set the current configuration on GetInfo
*/
se.sizeID = 0xffff;
se.widthInPixels = 0;
se.heightInPixels = 0;
se.widthInMillimeters = 0;
se.heightInMillimeters = 0;
}
WriteEventsToClient (client, 1, (xEvent *) &se);
}
/*
* Notify the extension that the screen size has been changed.
* The driver is responsible for calling this whenever it has changed
* the size of the screen
*/
void
RRScreenSizeNotify (ScreenPtr pScreen)
{
rrScrPriv(pScreen);
/*
* Deliver ConfigureNotify events when root changes
* pixel size
*/
if (pScrPriv->width == pScreen->width &&
pScrPriv->height == pScreen->height &&
pScrPriv->mmWidth == pScreen->mmWidth &&
pScrPriv->mmHeight == pScreen->mmHeight)
return;
pScrPriv->width = pScreen->width;
pScrPriv->height = pScreen->height;
pScrPriv->mmWidth = pScreen->mmWidth;
pScrPriv->mmHeight = pScreen->mmHeight;
pScrPriv->changed = TRUE;
/* pScrPriv->sizeChanged = TRUE; */
RRTellChanged (pScreen);
RRSendConfigNotify (pScreen);
RREditConnectionInfo (pScreen);
RRPointerScreenConfigured (pScreen);
/*
* Fix pointer bounds and location
*/
ScreenRestructured (pScreen);
}
/*
* Request that the screen be resized
*/
Bool
RRScreenSizeSet (ScreenPtr pScreen,
CARD16 width,
CARD16 height,
CARD32 mmWidth,
CARD32 mmHeight)
{
rrScrPriv(pScreen);
#if RANDR_12_INTERFACE
if (pScrPriv->rrScreenSetSize)
{
return (*pScrPriv->rrScreenSetSize) (pScreen,
width, height,
mmWidth, mmHeight);
}
#endif
#if RANDR_10_INTERFACE
if (pScrPriv->rrSetConfig)
{
return TRUE; /* can't set size separately */
}
#endif
return FALSE;
}
/*
* Retrieve valid screen size range
*/
int
ProcRRGetScreenSizeRange (ClientPtr client)
{
REQUEST(xRRGetScreenSizeRangeReq);
xRRGetScreenSizeRangeReply rep;
WindowPtr pWin;
ScreenPtr pScreen;
rrScrPrivPtr pScrPriv;
int rc;
REQUEST_SIZE_MATCH(xRRGetScreenInfoReq);
rc = dixLookupWindow(&pWin, stuff->window, client, DixReadAccess);
if (rc != Success)
return rc;
pScreen = pWin->drawable.pScreen;
pScrPriv = rrGetScrPriv(pScreen);
rep.type = X_Reply;
rep.pad = 0;
rep.sequenceNumber = client->sequence;
rep.length = 0;
if (pScrPriv)
{
if (!RRGetInfo (pScreen))
return BadAlloc;
rep.minWidth = pScrPriv->minWidth;
rep.minHeight = pScrPriv->minHeight;
rep.maxWidth = pScrPriv->maxWidth;
rep.maxHeight = pScrPriv->maxHeight;
}
else
{
rep.maxWidth = rep.minWidth = pScreen->width;
rep.maxHeight = rep.minHeight = pScreen->height;
}
if (client->swapped)
{
int n;
swaps(&rep.sequenceNumber, n);
swapl(&rep.length, n);
swaps(&rep.minWidth, n);
swaps(&rep.minHeight, n);
swaps(&rep.maxWidth, n);
swaps(&rep.maxHeight, n);
}
WriteToClient(client, sizeof(xRRGetScreenSizeRangeReply), (char *)&rep);
return (client->noClientException);
}
int
ProcRRSetScreenSize (ClientPtr client)
{
REQUEST(xRRSetScreenSizeReq);
WindowPtr pWin;
ScreenPtr pScreen;
rrScrPrivPtr pScrPriv;
int i, rc;
REQUEST_SIZE_MATCH(xRRSetScreenSizeReq);
rc = dixLookupWindow(&pWin, stuff->window, client, DixReadAccess);
if (rc != Success)
return rc;
pScreen = pWin->drawable.pScreen;
pScrPriv = rrGetScrPriv(pScreen);
if (stuff->width < pScrPriv->minWidth || pScrPriv->maxWidth < stuff->width)
{
client->errorValue = stuff->width;
return BadValue;
}
if (stuff->height < pScrPriv->minHeight ||
pScrPriv->maxHeight < stuff->height)
{
client->errorValue = stuff->height;
return BadValue;
}
for (i = 0; i < pScrPriv->numCrtcs; i++)
{
RRCrtcPtr crtc = pScrPriv->crtcs[i];
RRModePtr mode = crtc->mode;
if (mode)
{
int source_width = mode->mode.width;
int source_height = mode->mode.height;
Rotation rotation = crtc->rotation;
if (rotation == RR_Rotate_90 || rotation == RR_Rotate_270)
{
source_width = mode->mode.height;
source_height = mode->mode.width;
}
if (crtc->x + source_width > stuff->width ||
crtc->y + source_height > stuff->height)
return BadMatch;
}
}
if (stuff->widthInMillimeters == 0 || stuff->heightInMillimeters == 0)
{
client->errorValue = 0;
return BadValue;
}
if (!RRScreenSizeSet (pScreen,
stuff->width, stuff->height,
stuff->widthInMillimeters,
stuff->heightInMillimeters))
{
return BadMatch;
}
return Success;
}
int
ProcRRGetScreenResources (ClientPtr client)
{
REQUEST(xRRGetScreenResourcesReq);
xRRGetScreenResourcesReply rep;
WindowPtr pWin;
ScreenPtr pScreen;
rrScrPrivPtr pScrPriv;
CARD8 *extra;
unsigned long extraLen;
int i, n, rc;
RRCrtc *crtcs;
RROutput *outputs;
xRRModeInfo *modeinfos;
CARD8 *names;
REQUEST_SIZE_MATCH(xRRGetScreenResourcesReq);
rc = dixLookupWindow(&pWin, stuff->window, client, DixReadAccess);
if (rc != Success)
return rc;
pScreen = pWin->drawable.pScreen;
pScrPriv = rrGetScrPriv(pScreen);
rep.pad = 0;
if (pScrPriv)
if (!RRGetInfo (pScreen))
return BadAlloc;
if (!pScrPriv)
{
rep.type = X_Reply;
rep.sequenceNumber = client->sequence;
rep.length = 0;
rep.timestamp = currentTime.milliseconds;
rep.configTimestamp = currentTime.milliseconds;
rep.nCrtcs = 0;
rep.nOutputs = 0;
rep.nModes = 0;
rep.nbytesNames = 0;
extra = NULL;
extraLen = 0;
}
else
{
RRModePtr *modes;
int num_modes;
modes = RRModesForScreen (pScreen, &num_modes);
if (!modes)
return BadAlloc;
rep.type = X_Reply;
rep.sequenceNumber = client->sequence;
rep.length = 0;
rep.timestamp = pScrPriv->lastSetTime.milliseconds;
rep.configTimestamp = pScrPriv->lastConfigTime.milliseconds;
rep.nCrtcs = pScrPriv->numCrtcs;
rep.nOutputs = pScrPriv->numOutputs;
rep.nModes = num_modes;
rep.nbytesNames = 0;
for (i = 0; i < num_modes; i++)
rep.nbytesNames += modes[i]->mode.nameLength;
rep.length = (pScrPriv->numCrtcs +
pScrPriv->numOutputs +
num_modes * (SIZEOF(xRRModeInfo) >> 2) +
((rep.nbytesNames + 3) >> 2));
extraLen = rep.length << 2;
if (extraLen)
{
extra = xalloc (extraLen);
if (!extra)
{
xfree (modes);
return BadAlloc;
}
}
else
extra = NULL;
crtcs = (RRCrtc *) extra;
outputs = (RROutput *) (crtcs + pScrPriv->numCrtcs);
modeinfos = (xRRModeInfo *) (outputs + pScrPriv->numOutputs);
names = (CARD8 *) (modeinfos + num_modes);
for (i = 0; i < pScrPriv->numCrtcs; i++)
{
crtcs[i] = pScrPriv->crtcs[i]->id;
if (client->swapped)
swapl (&crtcs[i], n);
}
for (i = 0; i < pScrPriv->numOutputs; i++)
{
outputs[i] = pScrPriv->outputs[i]->id;
if (client->swapped)
swapl (&outputs[i], n);
}
for (i = 0; i < num_modes; i++)
{
RRModePtr mode = modes[i];
modeinfos[i] = mode->mode;
if (client->swapped)
{
swapl (&modeinfos[i].id, n);
swaps (&modeinfos[i].width, n);
swaps (&modeinfos[i].height, n);
swapl (&modeinfos[i].dotClock, n);
swaps (&modeinfos[i].hSyncStart, n);
swaps (&modeinfos[i].hSyncEnd, n);
swaps (&modeinfos[i].hTotal, n);
swaps (&modeinfos[i].hSkew, n);
swaps (&modeinfos[i].vSyncStart, n);
swaps (&modeinfos[i].vSyncEnd, n);
swaps (&modeinfos[i].vTotal, n);
swaps (&modeinfos[i].nameLength, n);
swapl (&modeinfos[i].modeFlags, n);
}
memcpy (names, mode->name,
mode->mode.nameLength);
names += mode->mode.nameLength;
}
xfree (modes);
assert (((((char *) names - (char *) extra) + 3) >> 2) == rep.length);
}
if (client->swapped) {
swaps(&rep.sequenceNumber, n);
swapl(&rep.length, n);
swapl(&rep.timestamp, n);
swapl(&rep.configTimestamp, n);
swaps(&rep.nCrtcs, n);
swaps(&rep.nOutputs, n);
swaps(&rep.nModes, n);
swaps(&rep.nbytesNames, n);
}
WriteToClient(client, sizeof(xRRGetScreenResourcesReply), (char *)&rep);
if (extraLen)
{
WriteToClient (client, extraLen, (char *) extra);
xfree (extra);
}
return client->noClientException;
}
typedef struct _RR10Data {
RRScreenSizePtr sizes;
int nsize;
int nrefresh;
int size;
CARD16 refresh;
} RR10DataRec, *RR10DataPtr;
/*
* Convert 1.2 monitor data into 1.0 screen data
*/
static RR10DataPtr
RR10GetData (ScreenPtr pScreen, RROutputPtr output)
{
RR10DataPtr data;
RRScreenSizePtr size;
int nmode = output->numModes;
int o, os, l, r;
RRScreenRatePtr refresh;
CARD16 vRefresh;
RRModePtr mode;
Bool *used;
/* Make sure there is plenty of space for any combination */
data = malloc (sizeof (RR10DataRec) +
sizeof (RRScreenSize) * nmode +
sizeof (RRScreenRate) * nmode +
sizeof (Bool) * nmode);
if (!data)
return NULL;
size = (RRScreenSizePtr) (data + 1);
refresh = (RRScreenRatePtr) (size + nmode);
used = (Bool *) (refresh + nmode);
memset (used, '\0', sizeof (Bool) * nmode);
data->sizes = size;
data->nsize = 0;
data->nrefresh = 0;
data->size = 0;
data->refresh = 0;
/*
* find modes not yet listed
*/
for (o = 0; o < output->numModes; o++)
{
if (used[o]) continue;
mode = output->modes[o];
l = data->nsize;
size[l].id = data->nsize;
size[l].width = mode->mode.width;
size[l].height = mode->mode.height;
if (output->mmWidth && output->mmHeight) {
size[l].mmWidth = output->mmWidth;
size[l].mmHeight = output->mmHeight;
} else {
size[l].mmWidth = pScreen->mmWidth;
size[l].mmHeight = pScreen->mmHeight;
}
size[l].nRates = 0;
size[l].pRates = &refresh[data->nrefresh];
data->nsize++;
/*
* Find all modes with matching size
*/
for (os = o; os < output->numModes; os++)
{
mode = output->modes[os];
if (mode->mode.width == size[l].width &&
mode->mode.height == size[l].height)
{
vRefresh = RRVerticalRefresh (&mode->mode);
used[os] = TRUE;
for (r = 0; r < size[l].nRates; r++)
if (vRefresh == size[l].pRates[r].rate)
break;
if (r == size[l].nRates)
{
size[l].pRates[r].rate = vRefresh;
size[l].pRates[r].mode = mode;
size[l].nRates++;
data->nrefresh++;
}
if (mode == output->crtc->mode)
{
data->size = l;
data->refresh = vRefresh;
}
}
}
}
return data;
}
int
ProcRRGetScreenInfo (ClientPtr client)
{
REQUEST(xRRGetScreenInfoReq);
xRRGetScreenInfoReply rep;
WindowPtr pWin;
int n, rc;
ScreenPtr pScreen;
rrScrPrivPtr pScrPriv;
CARD8 *extra;
unsigned long extraLen;
RROutputPtr output;
REQUEST_SIZE_MATCH(xRRGetScreenInfoReq);
rc = dixLookupWindow(&pWin, stuff->window, client, DixReadAccess);
if (rc != Success)
return rc;
pScreen = pWin->drawable.pScreen;
pScrPriv = rrGetScrPriv(pScreen);
rep.pad = 0;
if (pScrPriv)
if (!RRGetInfo (pScreen))
return BadAlloc;
output = RRFirstOutput (pScreen);
if (!pScrPriv || !output)
{
rep.type = X_Reply;
rep.setOfRotations = RR_Rotate_0;;
rep.sequenceNumber = client->sequence;
rep.length = 0;
rep.root = WindowTable[pWin->drawable.pScreen->myNum]->drawable.id;
rep.timestamp = currentTime.milliseconds;
rep.configTimestamp = currentTime.milliseconds;
rep.nSizes = 0;
rep.sizeID = 0;
rep.rotation = RR_Rotate_0;
rep.rate = 0;
rep.nrateEnts = 0;
extra = 0;
extraLen = 0;
}
else
{
int i, j;
xScreenSizes *size;
CARD16 *rates;
CARD8 *data8;
Bool has_rate = RRClientKnowsRates (client);
RR10DataPtr pData;
RRScreenSizePtr pSize;
pData = RR10GetData (pScreen, output);
if (!pData)
return BadAlloc;
rep.type = X_Reply;
rep.setOfRotations = output->crtc->rotations;
rep.sequenceNumber = client->sequence;
rep.length = 0;
rep.root = WindowTable[pWin->drawable.pScreen->myNum]->drawable.id;
rep.timestamp = pScrPriv->lastSetTime.milliseconds;
rep.configTimestamp = pScrPriv->lastConfigTime.milliseconds;
rep.rotation = output->crtc->rotation;
rep.nSizes = pData->nsize;
rep.nrateEnts = pData->nrefresh + pData->nsize;
rep.sizeID = pData->size;
rep.rate = pData->refresh;
extraLen = (rep.nSizes * sizeof (xScreenSizes) +
rep.nrateEnts * sizeof (CARD16));
if (extraLen)
{
extra = (CARD8 *) xalloc (extraLen);
if (!extra)
{
xfree (pData);
return BadAlloc;
}
}
else
extra = NULL;
/*
* First comes the size information
*/
size = (xScreenSizes *) extra;
rates = (CARD16 *) (size + rep.nSizes);
for (i = 0; i < pData->nsize; i++)
{
pSize = &pData->sizes[i];
size->widthInPixels = pSize->width;
size->heightInPixels = pSize->height;
size->widthInMillimeters = pSize->mmWidth;
size->heightInMillimeters = pSize->mmHeight;
if (client->swapped)
{
swaps (&size->widthInPixels, n);
swaps (&size->heightInPixels, n);
swaps (&size->widthInMillimeters, n);
swaps (&size->heightInMillimeters, n);
}
size++;
if (has_rate)
{
*rates = pSize->nRates;
if (client->swapped)
{
swaps (rates, n);
}
rates++;
for (j = 0; j < pSize->nRates; j++)
{
*rates = pSize->pRates[j].rate;
if (client->swapped)
{
swaps (rates, n);
}
rates++;
}
}
}
xfree (pData);
data8 = (CARD8 *) rates;
if (data8 - (CARD8 *) extra != extraLen)
FatalError ("RRGetScreenInfo bad extra len %ld != %ld\n",
(unsigned long)(data8 - (CARD8 *) extra), extraLen);
rep.length = (extraLen + 3) >> 2;
}
if (client->swapped) {
swaps(&rep.sequenceNumber, n);
swapl(&rep.length, n);
swapl(&rep.timestamp, n);
swaps(&rep.rotation, n);
swaps(&rep.nSizes, n);
swaps(&rep.sizeID, n);
swaps(&rep.rate, n);
swaps(&rep.nrateEnts, n);
}
WriteToClient(client, sizeof(xRRGetScreenInfoReply), (char *)&rep);
if (extraLen)
{
WriteToClient (client, extraLen, (char *) extra);
xfree (extra);
}
return (client->noClientException);
}
int
ProcRRSetScreenConfig (ClientPtr client)
{
REQUEST(xRRSetScreenConfigReq);
xRRSetScreenConfigReply rep;
DrawablePtr pDraw;
int n, rc;
ScreenPtr pScreen;
rrScrPrivPtr pScrPriv;
TimeStamp configTime;
TimeStamp time;
int i;
Rotation rotation;
int rate;
Bool has_rate;
RROutputPtr output;
RRModePtr mode;
RR10DataPtr pData = NULL;
RRScreenSizePtr pSize;
UpdateCurrentTime ();
if (RRClientKnowsRates (client))
{
REQUEST_SIZE_MATCH (xRRSetScreenConfigReq);
has_rate = TRUE;
}
else
{
REQUEST_SIZE_MATCH (xRR1_0SetScreenConfigReq);
has_rate = FALSE;
}
rc = dixLookupDrawable(&pDraw, stuff->drawable, client, 0, DixWriteAccess);
if (rc != Success)
return rc;
pScreen = pDraw->pScreen;
pScrPriv = rrGetScrPriv(pScreen);
time = ClientTimeToServerTime(stuff->timestamp);
configTime = ClientTimeToServerTime(stuff->configTimestamp);
if (!pScrPriv)
{
time = currentTime;
rep.status = RRSetConfigFailed;
goto sendReply;
}
if (!RRGetInfo (pScreen))
return BadAlloc;
output = RRFirstOutput (pScreen);
if (!output)
{
time = currentTime;
rep.status = RRSetConfigFailed;
goto sendReply;
}
/*
* if the client's config timestamp is not the same as the last config
* timestamp, then the config information isn't up-to-date and
* can't even be validated
*/
if (CompareTimeStamps (configTime, pScrPriv->lastConfigTime) != 0)
{
rep.status = RRSetConfigInvalidConfigTime;
goto sendReply;
}
pData = RR10GetData (pScreen, output);
if (!pData)
return BadAlloc;
if (stuff->sizeID >= pData->nsize)
{
/*
* Invalid size ID
*/
client->errorValue = stuff->sizeID;
xfree (pData);
return BadValue;
}
pSize = &pData->sizes[stuff->sizeID];
/*
* Validate requested rotation
*/
rotation = (Rotation) stuff->rotation;
/* test the rotation bits only! */
switch (rotation & 0xf) {
case RR_Rotate_0:
case RR_Rotate_90:
case RR_Rotate_180:
case RR_Rotate_270:
break;
default:
/*
* Invalid rotation
*/
client->errorValue = stuff->rotation;
xfree (pData);
return BadValue;
}
if ((~output->crtc->rotations) & rotation)
{
/*
* requested rotation or reflection not supported by screen
*/
client->errorValue = stuff->rotation;
xfree (pData);
return BadMatch;
}
/*
* Validate requested refresh
*/
if (has_rate)
rate = (int) stuff->rate;
else
rate = 0;
if (rate)
{
for (i = 0; i < pSize->nRates; i++)
{
if (pSize->pRates[i].rate == rate)
break;
}
if (i == pSize->nRates)
{
/*
* Invalid rate
*/
client->errorValue = rate;
xfree (pData);
return BadValue;
}
mode = pSize->pRates[i].mode;
}
else
mode = pSize->pRates[0].mode;
/*
* Make sure the requested set-time is not older than
* the last set-time
*/
if (CompareTimeStamps (time, pScrPriv->lastSetTime) < 0)
{
rep.status = RRSetConfigInvalidTime;
goto sendReply;
}
/*
* If the screen size is changing, adjust all of the other outputs
* to fit the new size, mirroring as much as possible
*/
if (mode->mode.width != pScreen->width ||
mode->mode.height != pScreen->height)
{
int c;
for (c = 0; c < pScrPriv->numCrtcs; c++)
{
if (!RRCrtcSet (pScrPriv->crtcs[c], NULL, 0, 0, RR_Rotate_0,
0, NULL))
{
rep.status = RRSetConfigFailed;
/* XXX recover from failure */
goto sendReply;
}
}
if (!RRScreenSizeSet (pScreen, mode->mode.width, mode->mode.height,
pScreen->mmWidth, pScreen->mmHeight))
{
rep.status = RRSetConfigFailed;
/* XXX recover from failure */
goto sendReply;
}
}
if (!RRCrtcSet (output->crtc, mode, 0, 0, stuff->rotation, 1, &output))
rep.status = RRSetConfigFailed;
else
rep.status = RRSetConfigSuccess;
/*
* XXX Configure other crtcs to mirror as much as possible
*/
sendReply:
if (pData)
xfree (pData);
rep.type = X_Reply;
/* rep.status has already been filled in */
rep.length = 0;
rep.sequenceNumber = client->sequence;
rep.newTimestamp = pScrPriv->lastSetTime.milliseconds;
rep.newConfigTimestamp = pScrPriv->lastConfigTime.milliseconds;
rep.root = WindowTable[pDraw->pScreen->myNum]->drawable.id;
if (client->swapped)
{
swaps(&rep.sequenceNumber, n);
swapl(&rep.length, n);
swapl(&rep.newTimestamp, n);
swapl(&rep.newConfigTimestamp, n);
swapl(&rep.root, n);
}
WriteToClient(client, sizeof(xRRSetScreenConfigReply), (char *)&rep);
return (client->noClientException);
}
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