andreacavalli/xserver-multidpi
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity
6b26a7bda9
xserver-multidpi/randr/rrscreen.c
Alex Goins 6b26a7bda9 randr: Fix rotation check in ProcRRSetScreenSize() 
ProcRRSetScreenSize() does bounds checking to ensure that none of the CRTCs have
a viewport that extends beyond the new screen size. In doing so, it accounts for
if the CRTC is rotated 90 or 270 degrees, swapping width and height.

However, it does so by testing if crtc->rotation is equal to RR_Rotate_90 or
RR_Rotate_270. crtc->rotation is a bit mask, and it includes reflection as well
as rotation. If a CRTC is reflected as well as rotated, it will incorrectly fail
this test, resulting in incorrect dimensions being used to verify the validity
of the new screen size. In some cases, this can cause valid uses of
ProcRRSetScreenSize() to fail with BadMatch.

This patch fixes the issue by testing that the bits RR_Rotate_90 or
RR_Rotate_270 are set, rather than testing for equality.

Signed-off-by: Alex Goins <agoins@nvidia.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
2018-02-01 16:36:59 -05:00

1158 lines
34 KiB
C
Raw Blame History

/*
* 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"
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;
if (ConnectionInfo == NULL)
return;
connSetup = (xConnSetup *) ConnectionInfo;
vendor = (char *) connSetup + sizeof(xConnSetup);
formats = (xPixmapFormat *) ((char *) vendor +
pad_to_int32(connSetup->nbytesVendor));
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 = pScreen->root;
xEvent event = {
.u.configureNotify.window = pWin->drawable.id,
.u.configureNotify.aboveSibling = None,
.u.configureNotify.x = 0,
.u.configureNotify.y = 0,
/* XXX xinerama stuff ? */
.u.configureNotify.width = pWin->drawable.width,
.u.configureNotify.height = pWin->drawable.height,
.u.configureNotify.borderWidth = wBorderWidth(pWin),
.u.configureNotify.override = pWin->overrideRedirect
};
event.u.u.type = ConfigureNotify;
DeliverEvents(pWin, &event, 1, NullWindow);
}
void
RRDeliverScreenEvent(ClientPtr client, WindowPtr pWin, ScreenPtr pScreen)
{
rrScrPriv(pScreen);
RRCrtcPtr crtc = pScrPriv->numCrtcs ? pScrPriv->crtcs[0] : NULL;
WindowPtr pRoot = pScreen->root;
xRRScreenChangeNotifyEvent se = {
.type = RRScreenChangeNotify + RREventBase,
.rotation = (CARD8) (crtc ? crtc->rotation : RR_Rotate_0),
.timestamp = pScrPriv->lastSetTime.milliseconds,
.configTimestamp = pScrPriv->lastConfigTime.milliseconds,
.root = pRoot->drawable.id,
.window = pWin->drawable.id,
.subpixelOrder = PictureGetSubpixelOrder(pScreen),
.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;
RRSetChanged(pScreen);
/* 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(xRRGetScreenSizeRangeReq);
rc = dixLookupWindow(&pWin, stuff->window, client, DixGetAttrAccess);
if (rc != Success)
return rc;
pScreen = pWin->drawable.pScreen;
pScrPriv = rrGetScrPriv(pScreen);
rep = (xRRGetScreenSizeRangeReply) {
.type = X_Reply,
.pad = 0,
.sequenceNumber = client->sequence,
.length = 0
};
if (pScrPriv) {
if (!RRGetInfo(pScreen, FALSE))
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) {
swaps(&rep.sequenceNumber);
swapl(&rep.length);
swaps(&rep.minWidth);
swaps(&rep.minHeight);
swaps(&rep.maxWidth);
swaps(&rep.maxHeight);
}
WriteToClient(client, sizeof(xRRGetScreenSizeRangeReply), &rep);
return Success;
}
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, DixGetAttrAccess);
if (rc != Success)
return rc;
pScreen = pWin->drawable.pScreen;
pScrPriv = rrGetScrPriv(pScreen);
if (!pScrPriv)
return BadMatch;
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 | 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;
}
#define update_totals(gpuscreen, pScrPriv) do { \
total_crtcs += pScrPriv->numCrtcs; \
total_outputs += pScrPriv->numOutputs; \
modes = RRModesForScreen(gpuscreen, &num_modes); \
if (!modes) \
return BadAlloc; \
for (j = 0; j < num_modes; j++) \
total_name_len += modes[j]->mode.nameLength; \
total_modes += num_modes; \
free(modes); \
} while(0)
static inline void swap_modeinfos(xRRModeInfo *modeinfos, int i)
{
swapl(&modeinfos[i].id);
swaps(&modeinfos[i].width);
swaps(&modeinfos[i].height);
swapl(&modeinfos[i].dotClock);
swaps(&modeinfos[i].hSyncStart);
swaps(&modeinfos[i].hSyncEnd);
swaps(&modeinfos[i].hTotal);
swaps(&modeinfos[i].hSkew);
swaps(&modeinfos[i].vSyncStart);
swaps(&modeinfos[i].vSyncEnd);
swaps(&modeinfos[i].vTotal);
swaps(&modeinfos[i].nameLength);
swapl(&modeinfos[i].modeFlags);
}
#define update_arrays(gpuscreen, pScrPriv, primary_crtc, has_primary) do { \
for (j = 0; j < pScrPriv->numCrtcs; j++) { \
if (has_primary && \
primary_crtc == pScrPriv->crtcs[j]) { \
has_primary = 0; \
continue; \
}\
crtcs[crtc_count] = pScrPriv->crtcs[j]->id; \
if (client->swapped) \
swapl(&crtcs[crtc_count]); \
crtc_count++; \
} \
for (j = 0; j < pScrPriv->numOutputs; j++) { \
outputs[output_count] = pScrPriv->outputs[j]->id; \
if (client->swapped) \
swapl(&outputs[output_count]); \
output_count++; \
} \
{ \
RRModePtr mode; \
modes = RRModesForScreen(gpuscreen, &num_modes); \
for (j = 0; j < num_modes; j++) { \
mode = modes[j]; \
modeinfos[mode_count] = mode->mode; \
if (client->swapped) { \
swap_modeinfos(modeinfos, mode_count); \
} \
memcpy(names, mode->name, mode->mode.nameLength); \
names += mode->mode.nameLength; \
mode_count++; \
} \
free(modes); \
} \
} while (0)
static int
rrGetMultiScreenResources(ClientPtr client, Bool query, ScreenPtr pScreen)
{
int j;
int total_crtcs, total_outputs, total_modes, total_name_len;
int crtc_count, output_count, mode_count;
ScreenPtr iter;
rrScrPrivPtr pScrPriv;
int num_modes;
RRModePtr *modes;
xRRGetScreenResourcesReply rep;
unsigned long extraLen;
CARD8 *extra;
RRCrtc *crtcs;
RRCrtcPtr primary_crtc = NULL;
RROutput *outputs;
xRRModeInfo *modeinfos;
CARD8 *names;
int has_primary = 0;
/* we need to iterate all the GPU masters and all their output slaves */
total_crtcs = 0;
total_outputs = 0;
total_modes = 0;
total_name_len = 0;
pScrPriv = rrGetScrPriv(pScreen);
if (query && pScrPriv)
if (!RRGetInfo(pScreen, query))
return BadAlloc;
update_totals(pScreen, pScrPriv);
xorg_list_for_each_entry(iter, &pScreen->slave_list, slave_head) {
if (!iter->is_output_slave)
continue;
pScrPriv = rrGetScrPriv(iter);
if (query)
if (!RRGetInfo(iter, query))
return BadAlloc;
update_totals(iter, pScrPriv);
}
pScrPriv = rrGetScrPriv(pScreen);
rep = (xRRGetScreenResourcesReply) {
.type = X_Reply,
.sequenceNumber = client->sequence,
.length = 0,
.timestamp = pScrPriv->lastSetTime.milliseconds,
.configTimestamp = pScrPriv->lastConfigTime.milliseconds,
.nCrtcs = total_crtcs,
.nOutputs = total_outputs,
.nModes = total_modes,
.nbytesNames = total_name_len
};
rep.length = (total_crtcs + total_outputs +
total_modes * bytes_to_int32(SIZEOF(xRRModeInfo)) +
bytes_to_int32(total_name_len));
extraLen = rep.length << 2;
if (extraLen) {
extra = malloc(extraLen);
if (!extra) {
return BadAlloc;
}
}
else
extra = NULL;
crtcs = (RRCrtc *)extra;
outputs = (RROutput *)(crtcs + total_crtcs);
modeinfos = (xRRModeInfo *)(outputs + total_outputs);
names = (CARD8 *)(modeinfos + total_modes);
crtc_count = 0;
output_count = 0;
mode_count = 0;
pScrPriv = rrGetScrPriv(pScreen);
if (pScrPriv->primaryOutput && pScrPriv->primaryOutput->crtc) {
has_primary = 1;
primary_crtc = pScrPriv->primaryOutput->crtc;
crtcs[0] = pScrPriv->primaryOutput->crtc->id;
if (client->swapped)
swapl(&crtcs[0]);
crtc_count = 1;
}
update_arrays(pScreen, pScrPriv, primary_crtc, has_primary);
xorg_list_for_each_entry(iter, &pScreen->slave_list, slave_head) {
if (!iter->is_output_slave)
continue;
pScrPriv = rrGetScrPriv(iter);
update_arrays(iter, pScrPriv, primary_crtc, has_primary);
}
assert(bytes_to_int32((char *) names - (char *) extra) == rep.length);
if (client->swapped) {
swaps(&rep.sequenceNumber);
swapl(&rep.length);
swapl(&rep.timestamp);
swapl(&rep.configTimestamp);
swaps(&rep.nCrtcs);
swaps(&rep.nOutputs);
swaps(&rep.nModes);
swaps(&rep.nbytesNames);
}
WriteToClient(client, sizeof(xRRGetScreenResourcesReply), &rep);
if (extraLen) {
WriteToClient(client, extraLen, extra);
free(extra);
}
return Success;
}
static int
rrGetScreenResources(ClientPtr client, Bool query)
{
REQUEST(xRRGetScreenResourcesReq);
xRRGetScreenResourcesReply rep;
WindowPtr pWin;
ScreenPtr pScreen;
rrScrPrivPtr pScrPriv;
CARD8 *extra;
unsigned long extraLen;
int i, rc, has_primary = 0;
RRCrtc *crtcs;
RROutput *outputs;
xRRModeInfo *modeinfos;
CARD8 *names;
REQUEST_SIZE_MATCH(xRRGetScreenResourcesReq);
rc = dixLookupWindow(&pWin, stuff->window, client, DixGetAttrAccess);
if (rc != Success)
return rc;
pScreen = pWin->drawable.pScreen;
pScrPriv = rrGetScrPriv(pScreen);
if (query && pScrPriv)
if (!RRGetInfo(pScreen, query))
return BadAlloc;
if (pScreen->output_slaves)
return rrGetMultiScreenResources(client, query, pScreen);
if (!pScrPriv) {
rep = (xRRGetScreenResourcesReply) {
.type = X_Reply,
.sequenceNumber = client->sequence,
.length = 0,
.timestamp = currentTime.milliseconds,
.configTimestamp = currentTime.milliseconds,
.nCrtcs = 0,
.nOutputs = 0,
.nModes = 0,
.nbytesNames = 0
};
extra = NULL;
extraLen = 0;
}
else {
RRModePtr *modes;
int num_modes;
modes = RRModesForScreen(pScreen, &num_modes);
if (!modes)
return BadAlloc;
rep = (xRRGetScreenResourcesReply) {
.type = X_Reply,
.sequenceNumber = client->sequence,
.length = 0,
.timestamp = pScrPriv->lastSetTime.milliseconds,
.configTimestamp = pScrPriv->lastConfigTime.milliseconds,
.nCrtcs = pScrPriv->numCrtcs,
.nOutputs = pScrPriv->numOutputs,
.nModes = num_modes,
.nbytesNames = 0
};
for (i = 0; i < num_modes; i++)
rep.nbytesNames += modes[i]->mode.nameLength;
rep.length = (pScrPriv->numCrtcs +
pScrPriv->numOutputs +
num_modes * bytes_to_int32(SIZEOF(xRRModeInfo)) +
bytes_to_int32(rep.nbytesNames));
extraLen = rep.length << 2;
if (extraLen) {
extra = calloc(1, extraLen);
if (!extra) {
free(modes);
return BadAlloc;
}
}
else
extra = NULL;
crtcs = (RRCrtc *) extra;
outputs = (RROutput *) (crtcs + pScrPriv->numCrtcs);
modeinfos = (xRRModeInfo *) (outputs + pScrPriv->numOutputs);
names = (CARD8 *) (modeinfos + num_modes);
if (pScrPriv->primaryOutput && pScrPriv->primaryOutput->crtc) {
has_primary = 1;
crtcs[0] = pScrPriv->primaryOutput->crtc->id;
if (client->swapped)
swapl(&crtcs[0]);
}
for (i = 0; i < pScrPriv->numCrtcs; i++) {
if (has_primary &&
pScrPriv->primaryOutput->crtc == pScrPriv->crtcs[i]) {
has_primary = 0;
continue;
}
crtcs[i + has_primary] = pScrPriv->crtcs[i]->id;
if (client->swapped)
swapl(&crtcs[i + has_primary]);
}
for (i = 0; i < pScrPriv->numOutputs; i++) {
outputs[i] = pScrPriv->outputs[i]->id;
if (client->swapped)
swapl(&outputs[i]);
}
for (i = 0; i < num_modes; i++) {
RRModePtr mode = modes[i];
modeinfos[i] = mode->mode;
if (client->swapped) {
swapl(&modeinfos[i].id);
swaps(&modeinfos[i].width);
swaps(&modeinfos[i].height);
swapl(&modeinfos[i].dotClock);
swaps(&modeinfos[i].hSyncStart);
swaps(&modeinfos[i].hSyncEnd);
swaps(&modeinfos[i].hTotal);
swaps(&modeinfos[i].hSkew);
swaps(&modeinfos[i].vSyncStart);
swaps(&modeinfos[i].vSyncEnd);
swaps(&modeinfos[i].vTotal);
swaps(&modeinfos[i].nameLength);
swapl(&modeinfos[i].modeFlags);
}
memcpy(names, mode->name, mode->mode.nameLength);
names += mode->mode.nameLength;
}
free(modes);
assert(bytes_to_int32((char *) names - (char *) extra) == rep.length);
}
if (client->swapped) {
swaps(&rep.sequenceNumber);
swapl(&rep.length);
swapl(&rep.timestamp);
swapl(&rep.configTimestamp);
swaps(&rep.nCrtcs);
swaps(&rep.nOutputs);
swaps(&rep.nModes);
swaps(&rep.nbytesNames);
}
WriteToClient(client, sizeof(xRRGetScreenResourcesReply), (char *) &rep);
if (extraLen) {
WriteToClient(client, extraLen, (char *) extra);
free(extra);
}
return Success;
}
int
ProcRRGetScreenResources(ClientPtr client)
{
return rrGetScreenResources(client, TRUE);
}
int
ProcRRGetScreenResourcesCurrent(ClientPtr client)
{
return rrGetScreenResources(client, FALSE);
}
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 rc;
ScreenPtr pScreen;
rrScrPrivPtr pScrPriv;
CARD8 *extra;
unsigned long extraLen;
RROutputPtr output;
REQUEST_SIZE_MATCH(xRRGetScreenInfoReq);
rc = dixLookupWindow(&pWin, stuff->window, client, DixGetAttrAccess);
if (rc != Success)
return rc;
pScreen = pWin->drawable.pScreen;
pScrPriv = rrGetScrPriv(pScreen);
if (pScrPriv)
if (!RRGetInfo(pScreen, TRUE))
return BadAlloc;
output = RRFirstOutput(pScreen);
if (!pScrPriv || !output) {
rep = (xRRGetScreenInfoReply) {
.type = X_Reply,
.setOfRotations = RR_Rotate_0,
.sequenceNumber = client->sequence,
.length = 0,
.root = pWin->drawable.pScreen->root->drawable.id,
.timestamp = currentTime.milliseconds,
.configTimestamp = currentTime.milliseconds,
.nSizes = 0,
.sizeID = 0,
.rotation = RR_Rotate_0,
.rate = 0,
.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 = (xRRGetScreenInfoReply) {
.type = X_Reply,
.setOfRotations = output->crtc->rotations,
.sequenceNumber = client->sequence,
.length = 0,
.root = pWin->drawable.pScreen->root->drawable.id,
.timestamp = pScrPriv->lastSetTime.milliseconds,
.configTimestamp = pScrPriv->lastConfigTime.milliseconds,
.rotation = output->crtc->rotation,
.nSizes = pData->nsize,
.nrateEnts = pData->nrefresh + pData->nsize,
.sizeID = pData->size,
.rate = pData->refresh
};
extraLen = rep.nSizes * sizeof(xScreenSizes);
if (has_rate)
extraLen += rep.nrateEnts * sizeof(CARD16);
if (extraLen) {
extra = (CARD8 *) malloc(extraLen);
if (!extra) {
free(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);
swaps(&size->heightInPixels);
swaps(&size->widthInMillimeters);
swaps(&size->heightInMillimeters);
}
size++;
if (has_rate) {
*rates = pSize->nRates;
if (client->swapped) {
swaps(rates);
}
rates++;
for (j = 0; j < pSize->nRates; j++) {
*rates = pSize->pRates[j].rate;
if (client->swapped) {
swaps(rates);
}
rates++;
}
}
}
free(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 = bytes_to_int32(extraLen);
}
if (client->swapped) {
swaps(&rep.sequenceNumber);
swapl(&rep.length);
swapl(&rep.timestamp);
swapl(&rep.configTimestamp);
swaps(&rep.rotation);
swaps(&rep.nSizes);
swaps(&rep.sizeID);
swaps(&rep.rate);
swaps(&rep.nrateEnts);
}
WriteToClient(client, sizeof(xRRGetScreenInfoReply), &rep);
if (extraLen) {
WriteToClient(client, extraLen, extra);
free(extra);
}
return Success;
}
int
ProcRRSetScreenConfig(ClientPtr client)
{
REQUEST(xRRSetScreenConfigReq);
xRRSetScreenConfigReply rep;
DrawablePtr pDraw;
int rc;
ScreenPtr pScreen;
rrScrPrivPtr pScrPriv;
TimeStamp time;
int i;
Rotation rotation;
int rate;
Bool has_rate;
CARD8 status;
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;
status = RRSetConfigFailed;
goto sendReply;
}
if (!RRGetInfo(pScreen, FALSE))
return BadAlloc;
output = RRFirstOutput(pScreen);
if (!output) {
time = currentTime;
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) {
status = RRSetConfigInvalidConfigTime;
goto sendReply;
}
pData = RR10GetData(pScreen, output);
if (!pData)
return BadAlloc;
if (stuff->sizeID >= pData->nsize) {
/*
* Invalid size ID
*/
client->errorValue = stuff->sizeID;
free(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;
free(pData);
return BadValue;
}
if ((~crtc->rotations) & rotation) {
/*
* requested rotation or reflection not supported by screen
*/
client->errorValue = stuff->rotation;
free(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;
free(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) {
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 (width < pScrPriv->minWidth || pScrPriv->maxWidth < width) {
client->errorValue = width;
free(pData);
return BadValue;
}
if (height < pScrPriv->minHeight || pScrPriv->maxHeight < height) {
client->errorValue = height;
free(pData);
return BadValue;
}
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)) {
status = RRSetConfigFailed;
/* XXX recover from failure */
goto sendReply;
}
}
if (!RRScreenSizeSet(pScreen, width, height,
pScreen->mmWidth, pScreen->mmHeight)) {
status = RRSetConfigFailed;
/* XXX recover from failure */
goto sendReply;
}
}
if (!RRCrtcSet(crtc, mode, 0, 0, stuff->rotation, 1, &output))
status = RRSetConfigFailed;
else {
pScrPriv->lastSetTime = time;
status = RRSetConfigSuccess;
}
/*
* XXX Configure other crtcs to mirror as much as possible
*/
sendReply:
free(pData);
rep = (xRRSetScreenConfigReply) {
.type = X_Reply,
.status = status,
.sequenceNumber = client->sequence,
.length = 0,
.newTimestamp = pScrPriv->lastSetTime.milliseconds,
.newConfigTimestamp = pScrPriv->lastConfigTime.milliseconds,
.root = pDraw->pScreen->root->drawable.id,
/* .subpixelOrder = ?? */
};
if (client->swapped) {
swaps(&rep.sequenceNumber);
swapl(&rep.length);
swapl(&rep.newTimestamp);
swapl(&rep.newConfigTimestamp);
swapl(&rep.root);
}
WriteToClient(client, sizeof(xRRSetScreenConfigReply), &rep);
return Success;
}
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;
}
free(data);
}
}
return sizeID;
}
Reference in New Issue View Git Blame Copy Permalink