xserver git update 15/5/2010

1 files changed, 369 insertions, 369 deletions

diff --git a/xorg-server/randr/rrmode.c b/xorg-server/randr/rrmode.c
index 139619367..7412e6f3e 100644
--- a/xorg-server/randr/rrmode.c
+++ b/xorg-server/randr/rrmode.c
@@ -1,369 +1,369 @@
-/*
- * 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"
-
-RESTYPE	RRModeType;
-
-static Bool
-RRModeEqual (xRRModeInfo *a, xRRModeInfo *b)
-{
-    if (a->width != b->width) return FALSE;
-    if (a->height != b->height) return FALSE;
-    if (a->dotClock != b->dotClock) return FALSE;
-    if (a->hSyncStart != b->hSyncStart) return FALSE;
-    if (a->hSyncEnd != b->hSyncEnd) return FALSE;
-    if (a->hTotal != b->hTotal) return FALSE;
-    if (a->hSkew != b->hSkew) return FALSE;
-    if (a->vSyncStart != b->vSyncStart) return FALSE;
-    if (a->vSyncEnd != b->vSyncEnd) return FALSE;
-    if (a->vTotal != b->vTotal) return FALSE;
-    if (a->nameLength != b->nameLength) return FALSE;
-    if (a->modeFlags != b->modeFlags) return FALSE;
-    return TRUE;
-}
-
-/*
- * Keep a list so it's easy to find modes in the resource database.
- */
-static int	    num_modes;
-static RRModePtr    *modes;
-
-static RRModePtr
-RRModeCreate (xRRModeInfo   *modeInfo,
-	      const char    *name,
-	      ScreenPtr	    userScreen)
-{
-    RRModePtr	mode, *newModes;
-    
-    if (!RRInit ())
-	return NULL;
-
-    mode = xalloc (sizeof (RRModeRec) + modeInfo->nameLength + 1);
-    if (!mode)
-	return NULL;
-    mode->refcnt = 1;
-    mode->mode = *modeInfo;
-    mode->name = (char *) (mode + 1);
-    memcpy (mode->name, name, modeInfo->nameLength);
-    mode->name[modeInfo->nameLength] = '\0';
-    mode->userScreen = userScreen;
-
-    if (num_modes)
-	newModes = xrealloc (modes, (num_modes + 1) * sizeof (RRModePtr));
-    else
-	newModes = xalloc (sizeof (RRModePtr));
-
-    if (!newModes)
-    {
-	xfree (mode);
-	return NULL;
-    }
-
-    mode->mode.id = FakeClientID(0);
-    if (!AddResource (mode->mode.id, RRModeType, (pointer) mode))
-	return NULL;
-    modes = newModes;
-    modes[num_modes++] = mode;
-    
-    /*
-     * give the caller a reference to this mode
-     */
-    ++mode->refcnt;
-    return mode;
-}
-
-static RRModePtr
-RRModeFindByName (const char	*name,
-		  CARD16    	nameLength)
-{
-    int		i;
-    RRModePtr	mode;
-
-    for (i = 0; i < num_modes; i++)
-    {
-	mode = modes[i];
-	if (mode->mode.nameLength == nameLength &&
-	    !memcmp (name, mode->name, nameLength))
-	{
-	    return mode;
-	}
-    }
-    return NULL;
-}
-
-RRModePtr
-RRModeGet (xRRModeInfo	*modeInfo,
-	   const char	*name)
-{
-    int	i;
-
-    for (i = 0; i < num_modes; i++)
-    {
-	RRModePtr   mode = modes[i];
-	if (RRModeEqual (&mode->mode, modeInfo) &&
-	    !memcmp (name, mode->name, modeInfo->nameLength))
-	{
-	    ++mode->refcnt;
-	    return mode;
-	}
-    }
-
-    return RRModeCreate (modeInfo, name, NULL);
-}
-
-static RRModePtr
-RRModeCreateUser (ScreenPtr	pScreen,
-		  xRRModeInfo	*modeInfo,
-		  const char	*name,
-		  int		*error)
-{
-    RRModePtr	mode;
-
-    mode = RRModeFindByName (name, modeInfo->nameLength);
-    if (mode)
-    {
-	*error = BadName;
-	return NULL;
-    }
-    
-    mode = RRModeCreate (modeInfo, name, pScreen);
-    if (!mode)
-    {
-	*error = BadAlloc;
-	return NULL;
-    }
-    *error = Success;
-    return mode;
-}
-
-RRModePtr *
-RRModesForScreen (ScreenPtr pScreen, int *num_ret)
-{
-    rrScrPriv(pScreen);
-    int		o, c, m;
-    RRModePtr	*screen_modes;
-    int		num_screen_modes = 0;
-
-    screen_modes = xalloc ((num_modes ? num_modes : 1) * sizeof (RRModePtr));
-    if (!screen_modes)
-	return NULL;
-    
-    /*
-     * Add modes from all outputs
-     */
-    for (o = 0; o < pScrPriv->numOutputs; o++)
-    {
-	RROutputPtr	output = pScrPriv->outputs[o];
-	int		m, n;
-
-	for (m = 0; m < output->numModes + output->numUserModes; m++)
-	{
-	    RRModePtr   mode = (m < output->numModes ? 
-				output->modes[m] : 
-				output->userModes[m-output->numModes]);
-	    for (n = 0; n < num_screen_modes; n++)
-		if (screen_modes[n] == mode)
-		    break;
-	    if (n == num_screen_modes)
-		screen_modes[num_screen_modes++] = mode;
-	}
-    }
-    /*
-     * Add modes from all crtcs. The goal is to
-     * make sure all available and active modes
-     * are visible to the client
-     */
-    for (c = 0; c < pScrPriv->numCrtcs; c++)
-    {
-	RRCrtcPtr	crtc = pScrPriv->crtcs[c];
-	RRModePtr	mode = crtc->mode;
-	int		n;
-
-	if (!mode) continue;
-	for (n = 0; n < num_screen_modes; n++)
-	    if (screen_modes[n] == mode)
-		break;
-	if (n == num_screen_modes)
-	    screen_modes[num_screen_modes++] = mode;
-    }
-    /*
-     * Add all user modes for this screen
-     */
-    for (m = 0; m < num_modes; m++)
-    {
-	RRModePtr	mode = modes[m];
-	int		n;
-
-	if (mode->userScreen != pScreen)
-	    continue;
-	for (n = 0; n < num_screen_modes; n++)
-	    if (screen_modes[n] == mode)
-		break;
-	if (n == num_screen_modes)
-	    screen_modes[num_screen_modes++] = mode;
-    }
-    
-    *num_ret = num_screen_modes;
-    return screen_modes;
-}
-
-void
-RRModeDestroy (RRModePtr mode)
-{
-    int	m;
-    
-    if (--mode->refcnt > 0)
-	return;
-    for (m = 0; m < num_modes; m++)
-    {
-	if (modes[m] == mode)
-	{
-	    memmove (modes + m, modes + m + 1,
-		     (num_modes - m - 1) * sizeof (RRModePtr));
-	    num_modes--;
-	    if (!num_modes)
-	    {
-		xfree (modes);
-		modes = NULL;
-	    }
-	    break;
-	}
-    }
-    
-    xfree (mode);
-}
-
-static int
-RRModeDestroyResource (pointer value, XID pid)
-{
-    RRModeDestroy ((RRModePtr) value);
-    return 1;
-}
-
-Bool
-RRModeInit (void)
-{
-    assert (num_modes == 0);
-    assert (modes == NULL);
-    RRModeType = CreateNewResourceType (RRModeDestroyResource, "MODE");
-    if (!RRModeType)
-	return FALSE;
-    return TRUE;
-}
-
-int
-ProcRRCreateMode (ClientPtr client)
-{
-    REQUEST(xRRCreateModeReq);
-    xRRCreateModeReply	rep;
-    WindowPtr		pWin;
-    ScreenPtr		pScreen;
-    rrScrPrivPtr	pScrPriv;
-    xRRModeInfo		*modeInfo;
-    long		units_after;
-    char		*name;
-    int			error, rc;
-    RRModePtr		mode;
-    
-    REQUEST_AT_LEAST_SIZE (xRRCreateModeReq);
-    rc = dixLookupWindow(&pWin, stuff->window, client, DixGetAttrAccess);
-    if (rc != Success)
-	return rc;
-
-    pScreen = pWin->drawable.pScreen;
-    pScrPriv = rrGetScrPriv(pScreen);
-    
-    modeInfo = &stuff->modeInfo;
-    name = (char *) (stuff + 1);
-    units_after = (stuff->length - bytes_to_int32(sizeof (xRRCreateModeReq)));
-
-    /* check to make sure requested name fits within the data provided */
-    if (bytes_to_int32(modeInfo->nameLength) > units_after)
-	return BadLength;
-
-    mode = RRModeCreateUser (pScreen, modeInfo, name, &error);
-    if (!mode)
-	return error;
-
-    rep.type = X_Reply;
-    rep.pad0 = 0;
-    rep.sequenceNumber = client->sequence;
-    rep.length = 0;
-    rep.mode = mode->mode.id;
-    if (client->swapped)
-    {
-	int n;
-    	swaps(&rep.sequenceNumber, n);
-    	swapl(&rep.length, n);
-	swapl(&rep.mode, n);
-    }
-    WriteToClient(client, sizeof(xRRCreateModeReply), (char *)&rep);
-    /* Drop out reference to this mode */
-    RRModeDestroy (mode);
-    return client->noClientException;
-}
-
-int
-ProcRRDestroyMode (ClientPtr client)
-{
-    REQUEST(xRRDestroyModeReq);
-    RRModePtr	mode;
-    
-    REQUEST_SIZE_MATCH(xRRDestroyModeReq);
-    VERIFY_RR_MODE(stuff->mode, mode, DixDestroyAccess);
-
-    if (!mode->userScreen)
-	return BadMatch;
-    if (mode->refcnt > 1)
-	return BadAccess;
-    FreeResource (stuff->mode, 0);
-    return Success;
-}
-
-int
-ProcRRAddOutputMode (ClientPtr client)
-{
-    REQUEST(xRRAddOutputModeReq);
-    RRModePtr	mode;
-    RROutputPtr	output;
-    
-    REQUEST_SIZE_MATCH(xRRAddOutputModeReq);
-    VERIFY_RR_OUTPUT(stuff->output, output, DixReadAccess);
-    VERIFY_RR_MODE(stuff->mode, mode, DixUseAccess);
-    
-    return RROutputAddUserMode (output, mode);
-}
-
-int
-ProcRRDeleteOutputMode (ClientPtr client)
-{
-    REQUEST(xRRDeleteOutputModeReq);
-    RRModePtr	mode;
-    RROutputPtr	output;
-    
-    REQUEST_SIZE_MATCH(xRRDeleteOutputModeReq);
-    VERIFY_RR_OUTPUT(stuff->output, output, DixReadAccess);
-    VERIFY_RR_MODE(stuff->mode, mode, DixUseAccess);
-    
-    return RROutputDeleteUserMode (output, mode);
-}
+/*

+ * 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"

+

+RESTYPE	RRModeType;

+

+static Bool

+RRModeEqual (xRRModeInfo *a, xRRModeInfo *b)

+{

+    if (a->width != b->width) return FALSE;

+    if (a->height != b->height) return FALSE;

+    if (a->dotClock != b->dotClock) return FALSE;

+    if (a->hSyncStart != b->hSyncStart) return FALSE;

+    if (a->hSyncEnd != b->hSyncEnd) return FALSE;

+    if (a->hTotal != b->hTotal) return FALSE;

+    if (a->hSkew != b->hSkew) return FALSE;

+    if (a->vSyncStart != b->vSyncStart) return FALSE;

+    if (a->vSyncEnd != b->vSyncEnd) return FALSE;

+    if (a->vTotal != b->vTotal) return FALSE;

+    if (a->nameLength != b->nameLength) return FALSE;

+    if (a->modeFlags != b->modeFlags) return FALSE;

+    return TRUE;

+}

+

+/*

+ * Keep a list so it's easy to find modes in the resource database.

+ */

+static int	    num_modes;

+static RRModePtr    *modes;

+

+static RRModePtr

+RRModeCreate (xRRModeInfo   *modeInfo,

+	      const char    *name,

+	      ScreenPtr	    userScreen)

+{

+    RRModePtr	mode, *newModes;

+    

+    if (!RRInit ())

+	return NULL;

+

+    mode = malloc(sizeof (RRModeRec) + modeInfo->nameLength + 1);

+    if (!mode)

+	return NULL;

+    mode->refcnt = 1;

+    mode->mode = *modeInfo;

+    mode->name = (char *) (mode + 1);

+    memcpy (mode->name, name, modeInfo->nameLength);

+    mode->name[modeInfo->nameLength] = '\0';

+    mode->userScreen = userScreen;

+

+    if (num_modes)

+	newModes = realloc(modes, (num_modes + 1) * sizeof (RRModePtr));

+    else

+	newModes = malloc(sizeof (RRModePtr));

+

+    if (!newModes)

+    {

+	free(mode);

+	return NULL;

+    }

+

+    mode->mode.id = FakeClientID(0);

+    if (!AddResource (mode->mode.id, RRModeType, (pointer) mode))

+	return NULL;

+    modes = newModes;

+    modes[num_modes++] = mode;

+    

+    /*

+     * give the caller a reference to this mode

+     */

+    ++mode->refcnt;

+    return mode;

+}

+

+static RRModePtr

+RRModeFindByName (const char	*name,

+		  CARD16    	nameLength)

+{

+    int		i;

+    RRModePtr	mode;

+

+    for (i = 0; i < num_modes; i++)

+    {

+	mode = modes[i];

+	if (mode->mode.nameLength == nameLength &&

+	    !memcmp (name, mode->name, nameLength))

+	{

+	    return mode;

+	}

+    }

+    return NULL;

+}

+

+RRModePtr

+RRModeGet (xRRModeInfo	*modeInfo,

+	   const char	*name)

+{

+    int	i;

+

+    for (i = 0; i < num_modes; i++)

+    {

+	RRModePtr   mode = modes[i];

+	if (RRModeEqual (&mode->mode, modeInfo) &&

+	    !memcmp (name, mode->name, modeInfo->nameLength))

+	{

+	    ++mode->refcnt;

+	    return mode;

+	}

+    }

+

+    return RRModeCreate (modeInfo, name, NULL);

+}

+

+static RRModePtr

+RRModeCreateUser (ScreenPtr	pScreen,

+		  xRRModeInfo	*modeInfo,

+		  const char	*name,

+		  int		*error)

+{

+    RRModePtr	mode;

+

+    mode = RRModeFindByName (name, modeInfo->nameLength);

+    if (mode)

+    {

+	*error = BadName;

+	return NULL;

+    }

+    

+    mode = RRModeCreate (modeInfo, name, pScreen);

+    if (!mode)

+    {

+	*error = BadAlloc;

+	return NULL;

+    }

+    *error = Success;

+    return mode;

+}

+

+RRModePtr *

+RRModesForScreen (ScreenPtr pScreen, int *num_ret)

+{

+    rrScrPriv(pScreen);

+    int		o, c, m;

+    RRModePtr	*screen_modes;

+    int		num_screen_modes = 0;

+

+    screen_modes = malloc((num_modes ? num_modes : 1) * sizeof (RRModePtr));

+    if (!screen_modes)

+	return NULL;

+    

+    /*

+     * Add modes from all outputs

+     */

+    for (o = 0; o < pScrPriv->numOutputs; o++)

+    {

+	RROutputPtr	output = pScrPriv->outputs[o];

+	int		m, n;

+

+	for (m = 0; m < output->numModes + output->numUserModes; m++)

+	{

+	    RRModePtr   mode = (m < output->numModes ? 

+				output->modes[m] : 

+				output->userModes[m-output->numModes]);

+	    for (n = 0; n < num_screen_modes; n++)

+		if (screen_modes[n] == mode)

+		    break;

+	    if (n == num_screen_modes)

+		screen_modes[num_screen_modes++] = mode;

+	}

+    }

+    /*

+     * Add modes from all crtcs. The goal is to

+     * make sure all available and active modes

+     * are visible to the client

+     */

+    for (c = 0; c < pScrPriv->numCrtcs; c++)

+    {

+	RRCrtcPtr	crtc = pScrPriv->crtcs[c];

+	RRModePtr	mode = crtc->mode;

+	int		n;

+

+	if (!mode) continue;

+	for (n = 0; n < num_screen_modes; n++)

+	    if (screen_modes[n] == mode)

+		break;

+	if (n == num_screen_modes)

+	    screen_modes[num_screen_modes++] = mode;

+    }

+    /*

+     * Add all user modes for this screen

+     */

+    for (m = 0; m < num_modes; m++)

+    {

+	RRModePtr	mode = modes[m];

+	int		n;

+

+	if (mode->userScreen != pScreen)

+	    continue;

+	for (n = 0; n < num_screen_modes; n++)

+	    if (screen_modes[n] == mode)

+		break;

+	if (n == num_screen_modes)

+	    screen_modes[num_screen_modes++] = mode;

+    }

+    

+    *num_ret = num_screen_modes;

+    return screen_modes;

+}

+

+void

+RRModeDestroy (RRModePtr mode)

+{

+    int	m;

+    

+    if (--mode->refcnt > 0)

+	return;

+    for (m = 0; m < num_modes; m++)

+    {

+	if (modes[m] == mode)

+	{

+	    memmove (modes + m, modes + m + 1,

+		     (num_modes - m - 1) * sizeof (RRModePtr));

+	    num_modes--;

+	    if (!num_modes)

+	    {

+		free(modes);

+		modes = NULL;

+	    }

+	    break;

+	}

+    }

+    

+    free(mode);

+}

+

+static int

+RRModeDestroyResource (pointer value, XID pid)

+{

+    RRModeDestroy ((RRModePtr) value);

+    return 1;

+}

+

+Bool

+RRModeInit (void)

+{

+    assert (num_modes == 0);

+    assert (modes == NULL);

+    RRModeType = CreateNewResourceType (RRModeDestroyResource, "MODE");

+    if (!RRModeType)

+	return FALSE;

+    return TRUE;

+}

+

+int

+ProcRRCreateMode (ClientPtr client)

+{

+    REQUEST(xRRCreateModeReq);

+    xRRCreateModeReply	rep;

+    WindowPtr		pWin;

+    ScreenPtr		pScreen;

+    rrScrPrivPtr	pScrPriv;

+    xRRModeInfo		*modeInfo;

+    long		units_after;

+    char		*name;

+    int			error, rc;

+    RRModePtr		mode;

+    

+    REQUEST_AT_LEAST_SIZE (xRRCreateModeReq);

+    rc = dixLookupWindow(&pWin, stuff->window, client, DixGetAttrAccess);

+    if (rc != Success)

+	return rc;

+

+    pScreen = pWin->drawable.pScreen;

+    pScrPriv = rrGetScrPriv(pScreen);

+    

+    modeInfo = &stuff->modeInfo;

+    name = (char *) (stuff + 1);

+    units_after = (stuff->length - bytes_to_int32(sizeof (xRRCreateModeReq)));

+

+    /* check to make sure requested name fits within the data provided */

+    if (bytes_to_int32(modeInfo->nameLength) > units_after)

+	return BadLength;

+

+    mode = RRModeCreateUser (pScreen, modeInfo, name, &error);

+    if (!mode)

+	return error;

+

+    rep.type = X_Reply;

+    rep.pad0 = 0;

+    rep.sequenceNumber = client->sequence;

+    rep.length = 0;

+    rep.mode = mode->mode.id;

+    if (client->swapped)

+    {

+	int n;

+    	swaps(&rep.sequenceNumber, n);

+    	swapl(&rep.length, n);

+	swapl(&rep.mode, n);

+    }

+    WriteToClient(client, sizeof(xRRCreateModeReply), (char *)&rep);

+    /* Drop out reference to this mode */

+    RRModeDestroy (mode);

+    return Success;

+}

+

+int

+ProcRRDestroyMode (ClientPtr client)

+{

+    REQUEST(xRRDestroyModeReq);

+    RRModePtr	mode;

+    

+    REQUEST_SIZE_MATCH(xRRDestroyModeReq);

+    VERIFY_RR_MODE(stuff->mode, mode, DixDestroyAccess);

+

+    if (!mode->userScreen)

+	return BadMatch;

+    if (mode->refcnt > 1)

+	return BadAccess;

+    FreeResource (stuff->mode, 0);

+    return Success;

+}

+

+int

+ProcRRAddOutputMode (ClientPtr client)

+{

+    REQUEST(xRRAddOutputModeReq);

+    RRModePtr	mode;

+    RROutputPtr	output;

+    

+    REQUEST_SIZE_MATCH(xRRAddOutputModeReq);

+    VERIFY_RR_OUTPUT(stuff->output, output, DixReadAccess);

+    VERIFY_RR_MODE(stuff->mode, mode, DixUseAccess);

+    

+    return RROutputAddUserMode (output, mode);

+}

+

+int

+ProcRRDeleteOutputMode (ClientPtr client)

+{

+    REQUEST(xRRDeleteOutputModeReq);

+    RRModePtr	mode;

+    RROutputPtr	output;

+    

+    REQUEST_SIZE_MATCH(xRRDeleteOutputModeReq);

+    VERIFY_RR_OUTPUT(stuff->output, output, DixReadAccess);

+    VERIFY_RR_MODE(stuff->mode, mode, DixUseAccess);

+    

+    return RROutputDeleteUserMode (output, mode);

+}