xenocara/xserver/randr/rroutput.c

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/*
* Copyright © 2006 Keith Packard
* Copyright © 2008 Red Hat, Inc.
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*
* 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"
RESTYPE RROutputType;
/*
* Notify the output of some change
*/
void
RROutputChanged (RROutputPtr output, Bool configChanged)
{
ScreenPtr pScreen = output->pScreen;
output->changed = TRUE;
if (pScreen)
{
rrScrPriv (pScreen);
pScrPriv->changed = TRUE;
if (configChanged)
pScrPriv->configChanged = TRUE;
}
}
/*
* Create an output
*/
RROutputPtr
RROutputCreate (ScreenPtr pScreen,
const char *name,
int nameLength,
void *devPrivate)
{
RROutputPtr output;
RROutputPtr *outputs;
rrScrPrivPtr pScrPriv;
if (!RRInit())
return NULL;
pScrPriv = rrGetScrPriv(pScreen);
if (pScrPriv->numOutputs)
outputs = realloc(pScrPriv->outputs,
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(pScrPriv->numOutputs + 1) * sizeof (RROutputPtr));
else
outputs = malloc(sizeof (RROutputPtr));
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if (!outputs)
return FALSE;
pScrPriv->outputs = outputs;
output = malloc(sizeof (RROutputRec) + nameLength + 1);
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if (!output)
return NULL;
output->id = FakeClientID (0);
output->pScreen = pScreen;
output->name = (char *) (output + 1);
output->nameLength = nameLength;
memcpy (output->name, name, nameLength);
output->name[nameLength] = '\0';
output->connection = RR_UnknownConnection;
output->subpixelOrder = SubPixelUnknown;
output->mmWidth = 0;
output->mmHeight = 0;
output->crtc = NULL;
output->numCrtcs = 0;
output->crtcs = NULL;
output->numClones = 0;
output->clones = NULL;
output->numModes = 0;
output->numPreferred = 0;
output->modes = NULL;
output->numUserModes = 0;
output->userModes = NULL;
output->properties = NULL;
output->pendingProperties = FALSE;
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output->changed = FALSE;
output->devPrivate = devPrivate;
if (!AddResource (output->id, RROutputType, (pointer) output))
return NULL;
pScrPriv->outputs[pScrPriv->numOutputs++] = output;
return output;
}
/*
* Notify extension that output parameters have been changed
*/
Bool
RROutputSetClones (RROutputPtr output,
RROutputPtr *clones,
int numClones)
{
RROutputPtr *newClones;
int i;
if (numClones == output->numClones)
{
for (i = 0; i < numClones; i++)
if (output->clones[i] != clones[i])
break;
if (i == numClones)
return TRUE;
}
if (numClones)
{
newClones = malloc(numClones * sizeof (RROutputPtr));
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if (!newClones)
return FALSE;
}
else
newClones = NULL;
free(output->clones);
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memcpy (newClones, clones, numClones * sizeof (RROutputPtr));
output->clones = newClones;
output->numClones = numClones;
RROutputChanged (output, TRUE);
return TRUE;
}
Bool
RROutputSetModes (RROutputPtr output,
RRModePtr *modes,
int numModes,
int numPreferred)
{
RRModePtr *newModes;
int i;
if (numModes == output->numModes && numPreferred == output->numPreferred)
{
for (i = 0; i < numModes; i++)
if (output->modes[i] != modes[i])
break;
if (i == numModes)
{
for (i = 0; i < numModes; i++)
RRModeDestroy (modes[i]);
return TRUE;
}
}
if (numModes)
{
newModes = malloc(numModes * sizeof (RRModePtr));
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if (!newModes)
return FALSE;
}
else
newModes = NULL;
if (output->modes)
{
for (i = 0; i < output->numModes; i++)
RRModeDestroy (output->modes[i]);
free(output->modes);
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}
memcpy (newModes, modes, numModes * sizeof (RRModePtr));
output->modes = newModes;
output->numModes = numModes;
output->numPreferred = numPreferred;
RROutputChanged (output, TRUE);
return TRUE;
}
int
RROutputAddUserMode (RROutputPtr output,
RRModePtr mode)
{
int m;
ScreenPtr pScreen = output->pScreen;
rrScrPriv(pScreen);
RRModePtr *newModes;
/* Check to see if this mode is already listed for this output */
for (m = 0; m < output->numModes + output->numUserModes; m++)
{
RRModePtr e = (m < output->numModes ?
output->modes[m] :
output->userModes[m - output->numModes]);
if (mode == e)
return Success;
}
/* Check with the DDX to see if this mode is OK */
if (pScrPriv->rrOutputValidateMode)
if (!pScrPriv->rrOutputValidateMode (pScreen, output, mode))
return BadMatch;
if (output->userModes)
newModes = realloc(output->userModes,
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(output->numUserModes + 1) * sizeof (RRModePtr));
else
newModes = malloc(sizeof (RRModePtr));
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if (!newModes)
return BadAlloc;
output->userModes = newModes;
output->userModes[output->numUserModes++] = mode;
++mode->refcnt;
RROutputChanged (output, TRUE);
RRTellChanged (pScreen);
return Success;
}
int
RROutputDeleteUserMode (RROutputPtr output,
RRModePtr mode)
{
int m;
/* Find this mode in the user mode list */
for (m = 0; m < output->numUserModes; m++)
{
RRModePtr e = output->userModes[m];
if (mode == e)
break;
}
/* Not there, access error */
if (m == output->numUserModes)
return BadAccess;
/* make sure the mode isn't active for this output */
if (output->crtc && output->crtc->mode == mode)
return BadMatch;
memmove (output->userModes + m, output->userModes + m + 1,
(output->numUserModes - m - 1) * sizeof (RRModePtr));
output->numUserModes--;
RRModeDestroy (mode);
return Success;
}
Bool
RROutputSetCrtcs (RROutputPtr output,
RRCrtcPtr *crtcs,
int numCrtcs)
{
RRCrtcPtr *newCrtcs;
int i;
if (numCrtcs == output->numCrtcs)
{
for (i = 0; i < numCrtcs; i++)
if (output->crtcs[i] != crtcs[i])
break;
if (i == numCrtcs)
return TRUE;
}
if (numCrtcs)
{
newCrtcs = malloc(numCrtcs * sizeof (RRCrtcPtr));
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if (!newCrtcs)
return FALSE;
}
else
newCrtcs = NULL;
free(output->crtcs);
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memcpy (newCrtcs, crtcs, numCrtcs * sizeof (RRCrtcPtr));
output->crtcs = newCrtcs;
output->numCrtcs = numCrtcs;
RROutputChanged (output, TRUE);
return TRUE;
}
Bool
RROutputSetConnection (RROutputPtr output,
CARD8 connection)
{
if (output->connection == connection)
return TRUE;
output->connection = connection;
RROutputChanged (output, TRUE);
return TRUE;
}
Bool
RROutputSetSubpixelOrder (RROutputPtr output,
int subpixelOrder)
{
if (output->subpixelOrder == subpixelOrder)
return TRUE;
output->subpixelOrder = subpixelOrder;
RROutputChanged (output, FALSE);
return TRUE;
}
Bool
RROutputSetPhysicalSize (RROutputPtr output,
int mmWidth,
int mmHeight)
{
if (output->mmWidth == mmWidth && output->mmHeight == mmHeight)
return TRUE;
output->mmWidth = mmWidth;
output->mmHeight = mmHeight;
RROutputChanged (output, FALSE);
return TRUE;
}
void
RRDeliverOutputEvent(ClientPtr client, WindowPtr pWin, RROutputPtr output)
{
ScreenPtr pScreen = pWin->drawable.pScreen;
rrScrPriv (pScreen);
xRROutputChangeNotifyEvent oe;
RRCrtcPtr crtc = output->crtc;
RRModePtr mode = crtc ? crtc->mode : 0;
oe.type = RRNotify + RREventBase;
oe.subCode = RRNotify_OutputChange;
oe.timestamp = pScrPriv->lastSetTime.milliseconds;
oe.configTimestamp = pScrPriv->lastConfigTime.milliseconds;
oe.window = pWin->drawable.id;
oe.output = output->id;
if (crtc)
{
oe.crtc = crtc->id;
oe.mode = mode ? mode->mode.id : None;
oe.rotation = crtc->rotation;
}
else
{
oe.crtc = None;
oe.mode = None;
oe.rotation = RR_Rotate_0;
}
oe.connection = output->connection;
oe.subpixelOrder = output->subpixelOrder;
WriteEventsToClient (client, 1, (xEvent *) &oe);
}
/*
* Destroy a Output at shutdown
*/
void
RROutputDestroy (RROutputPtr output)
{
FreeResource (output->id, 0);
}
static int
RROutputDestroyResource (pointer value, XID pid)
{
RROutputPtr output = (RROutputPtr) value;
ScreenPtr pScreen = output->pScreen;
int m;
if (pScreen)
{
rrScrPriv(pScreen);
int i;
if (pScrPriv->primaryOutput == output)
pScrPriv->primaryOutput = NULL;
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for (i = 0; i < pScrPriv->numOutputs; i++)
{
if (pScrPriv->outputs[i] == output)
{
memmove (pScrPriv->outputs + i, pScrPriv->outputs + i + 1,
(pScrPriv->numOutputs - (i + 1)) * sizeof (RROutputPtr));
--pScrPriv->numOutputs;
break;
}
}
}
if (output->modes)
{
for (m = 0; m < output->numModes; m++)
RRModeDestroy (output->modes[m]);
free(output->modes);
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}
for (m = 0; m < output->numUserModes; m++)
RRModeDestroy (output->userModes[m]);
free(output->userModes);
free(output->crtcs);
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free(output->clones);
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RRDeleteAllOutputProperties (output);
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free(output);
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return 1;
}
/*
* Initialize output type
*/
Bool
RROutputInit (void)
{
RROutputType = CreateNewResourceType (RROutputDestroyResource, "OUTPUT");
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if (!RROutputType)
return FALSE;
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return TRUE;
}
/*
* Initialize output type error value
*/
void
RROutputInitErrorValue(void)
{
SetResourceTypeErrorValue(RROutputType, RRErrorBase + BadRROutput);
}
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#define OutputInfoExtra (SIZEOF(xRRGetOutputInfoReply) - 32)
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int
ProcRRGetOutputInfo (ClientPtr client)
{
REQUEST(xRRGetOutputInfoReq);
xRRGetOutputInfoReply rep;
RROutputPtr output;
CARD8 *extra;
unsigned long extraLen;
ScreenPtr pScreen;
rrScrPrivPtr pScrPriv;
RRCrtc *crtcs;
RRMode *modes;
RROutput *clones;
char *name;
int i, n;
REQUEST_SIZE_MATCH(xRRGetOutputInfoReq);
VERIFY_RR_OUTPUT(stuff->output, output, DixReadAccess);
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pScreen = output->pScreen;
pScrPriv = rrGetScrPriv(pScreen);
rep.type = X_Reply;
rep.sequenceNumber = client->sequence;
rep.length = bytes_to_int32(OutputInfoExtra);
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rep.timestamp = pScrPriv->lastSetTime.milliseconds;
rep.crtc = output->crtc ? output->crtc->id : None;
rep.mmWidth = output->mmWidth;
rep.mmHeight = output->mmHeight;
rep.connection = output->connection;
rep.subpixelOrder = output->subpixelOrder;
rep.nCrtcs = output->numCrtcs;
rep.nModes = output->numModes + output->numUserModes;
rep.nPreferred = output->numPreferred;
rep.nClones = output->numClones;
rep.nameLength = output->nameLength;
extraLen = ((output->numCrtcs +
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output->numModes + output->numUserModes +
output->numClones +
bytes_to_int32(rep.nameLength)) << 2);
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if (extraLen)
{
rep.length += bytes_to_int32(extraLen);
extra = malloc(extraLen);
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if (!extra)
return BadAlloc;
}
else
extra = NULL;
crtcs = (RRCrtc *) extra;
modes = (RRMode *) (crtcs + output->numCrtcs);
clones = (RROutput *) (modes + output->numModes + output->numUserModes);
name = (char *) (clones + output->numClones);
for (i = 0; i < output->numCrtcs; i++)
{
crtcs[i] = output->crtcs[i]->id;
if (client->swapped)
swapl (&crtcs[i], n);
}
for (i = 0; i < output->numModes + output->numUserModes; i++)
{
if (i < output->numModes)
modes[i] = output->modes[i]->mode.id;
else
modes[i] = output->userModes[i - output->numModes]->mode.id;
if (client->swapped)
swapl (&modes[i], n);
}
for (i = 0; i < output->numClones; i++)
{
clones[i] = output->clones[i]->id;
if (client->swapped)
swapl (&clones[i], n);
}
memcpy (name, output->name, output->nameLength);
if (client->swapped) {
swaps(&rep.sequenceNumber, n);
swapl(&rep.length, n);
swapl(&rep.timestamp, n);
swapl(&rep.crtc, n);
swapl(&rep.mmWidth, n);
swapl(&rep.mmHeight, n);
swaps(&rep.nCrtcs, n);
swaps(&rep.nModes, n);
swaps(&rep.nClones, n);
swaps(&rep.nameLength, n);
}
WriteToClient(client, sizeof(xRRGetOutputInfoReply), (char *)&rep);
if (extraLen)
{
WriteToClient (client, extraLen, (char *) extra);
free(extra);
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}
return Success;
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}
static void
RRSetPrimaryOutput(ScreenPtr pScreen, rrScrPrivPtr pScrPriv,
RROutputPtr output)
{
if (pScrPriv->primaryOutput == output)
return;
/* clear the old primary */
if (pScrPriv->primaryOutput) {
RROutputChanged(pScrPriv->primaryOutput, 0);
pScrPriv->primaryOutput = NULL;
}
/* set the new primary */
if (output) {
pScrPriv->primaryOutput = output;
RROutputChanged(output, 0);
}
pScrPriv->layoutChanged = TRUE;
RRTellChanged(pScreen);
}
int
ProcRRSetOutputPrimary(ClientPtr client)
{
REQUEST(xRRSetOutputPrimaryReq);
RROutputPtr output = NULL;
WindowPtr pWin;
rrScrPrivPtr pScrPriv;
int rc;
REQUEST_SIZE_MATCH(xRRSetOutputPrimaryReq);
rc = dixLookupWindow(&pWin, stuff->window, client, DixGetAttrAccess);
if (rc != Success)
return rc;
if (stuff->output) {
VERIFY_RR_OUTPUT(stuff->output, output, DixReadAccess);
if (output->pScreen != pWin->drawable.pScreen) {
client->errorValue = stuff->window;
return BadMatch;
}
}
pScrPriv = rrGetScrPriv(pWin->drawable.pScreen);
RRSetPrimaryOutput(pWin->drawable.pScreen, pScrPriv, output);
return Success;
}
int
ProcRRGetOutputPrimary(ClientPtr client)
{
REQUEST(xRRGetOutputPrimaryReq);
WindowPtr pWin;
rrScrPrivPtr pScrPriv;
xRRGetOutputPrimaryReply rep;
RROutputPtr primary = NULL;
int rc;
REQUEST_SIZE_MATCH(xRRGetOutputPrimaryReq);
rc = dixLookupWindow(&pWin, stuff->window, client, DixGetAttrAccess);
if (rc != Success)
return rc;
pScrPriv = rrGetScrPriv(pWin->drawable.pScreen);
if (pScrPriv)
primary = pScrPriv->primaryOutput;
memset(&rep, 0, sizeof(rep));
rep.type = X_Reply;
rep.sequenceNumber = client->sequence;
rep.output = primary ? primary->id : None;
if (client->swapped) {
int n;
swaps(&rep.sequenceNumber, n);
swapl(&rep.output, n);
}
WriteToClient(client, sizeof(xRRGetOutputPrimaryReply), &rep);
return Success;
}