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xserver/randr/rrscreen.c

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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};
static CARD16
RR10CurrentSizeID (ScreenPtr pScreen);
/*
* 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;
WindowPtr pRoot = WindowTable[pScreen->myNum];
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;
se.sizeID = RR10CurrentSizeID (pScreen);
if (se.rotation & (RR_Rotate_90 | RR_Rotate_270)) {
se.widthInPixels = pScreen->height;
se.heightInPixels = pScreen->width;
se.widthInMillimeters = pScreen->mmHeight;
se.heightInMillimeters = pScreen->mmWidth;
} else {
se.widthInPixels = pScreen->width;
se.heightInPixels = pScreen->height;
se.widthInMillimeters = pScreen->mmWidth;
se.heightInMillimeters = pScreen->mmHeight;
}
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 + output->numUserModes;
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 + output->numUserModes; o++)
{
if (used[o]) continue;
if (o < output->numModes)
mode = output->modes[o];
else
mode = output->userModes[o - output->numModes];
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 + output->numUserModes; os++)
{
if (os < output->numModes)
mode = output->modes[os];
else
mode = output->userModes[os - output->numModes];
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 time;
int i;
Rotation rotation;
int rate;
Bool has_rate;
RROutputPtr output;
RRCrtcPtr crtc;
RRModePtr mode;
RR10DataPtr pData = NULL;
RRScreenSizePtr pSize;
int width, height;
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);
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;
}
crtc = output->crtc;
/*
* 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.
*
* Note that the client only knows about the milliseconds part of the
* timestamp, so using CompareTimeStamps here would cause randr to suddenly
* stop working after several hours have passed (freedesktop bug #6502).
*/
if (stuff->configTimestamp != pScrPriv->lastConfigTime.milliseconds)
{
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 ((~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
*/
width = mode->mode.width;
height = mode->mode.height;
if (rotation & (RR_Rotate_90|RR_Rotate_270))
{
width = mode->mode.height;
height = mode->mode.width;
}
if (width != pScreen->width || 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, width, height,
pScreen->mmWidth, pScreen->mmHeight))
{
rep.status = RRSetConfigFailed;
/* XXX recover from failure */
goto sendReply;
}
}
if (!RRCrtcSet (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);
}
static CARD16
RR10CurrentSizeID (ScreenPtr pScreen)
{
CARD16 sizeID = 0xffff;
RROutputPtr output = RRFirstOutput (pScreen);
if (output)
{
RR10DataPtr data = RR10GetData (pScreen, output);
if (data)
{
int i;
for (i = 0; i < data->nsize; i++)
if (data->sizes[i].width == pScreen->width &&
data->sizes[i].height == pScreen->height)
{
sizeID = (CARD16) i;
break;
}
xfree (data);
}
}
return sizeID;
}
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