Merge branch 'nx-X11'

1 files changed, 398 insertions, 0 deletions

diff --git a/nx-X11/programs/Xserver/randr/rrmode.c.X.original b/nx-X11/programs/Xserver/randr/rrmode.c.X.original
new file mode 100644
index 000000000..d5072084a
--- /dev/null
+++ b/nx-X11/programs/Xserver/randr/rrmode.c.X.original
@@ -0,0 +1,398 @@
+/*
+ * 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"
+#include "registry.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);
+    if (!RRModeType)
+	return FALSE;
+    RegisterResourceName (RRModeType, "MODE");
+    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, DixReadAccess);
+    if (rc != Success)
+	return rc;
+
+    pScreen = pWin->drawable.pScreen;
+    pScrPriv = rrGetScrPriv(pScreen);
+    
+    modeInfo = &stuff->modeInfo;
+    name = (char *) (stuff + 1);
+    units_after = (stuff->length - (sizeof (xRRCreateModeReq) >> 2));
+
+    /* check to make sure requested name fits within the data provided */
+    if ((int) (modeInfo->nameLength + 3) >> 2 > 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);
+    
+    return client->noClientException;
+}
+
+int
+ProcRRDestroyMode (ClientPtr client)
+{
+    REQUEST(xRRDestroyModeReq);
+    RRModePtr	mode;
+    
+    REQUEST_SIZE_MATCH(xRRDestroyModeReq);
+    mode = LookupIDByType (stuff->mode, RRModeType);
+    if (!mode)
+    {
+	client->errorValue = stuff->mode;
+	return RRErrorBase + BadRRMode;
+    }
+    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);
+    output = LookupOutput(client, stuff->output, DixReadAccess);
+
+    if (!output)
+    {
+	client->errorValue = stuff->output;
+	return RRErrorBase + BadRROutput;
+    }
+    
+    mode = LookupIDByType (stuff->mode, RRModeType);
+    if (!mode)
+    {
+	client->errorValue = stuff->mode;
+	return RRErrorBase + BadRRMode;
+    }
+    
+    return RROutputAddUserMode (output, mode);
+}
+
+int
+ProcRRDeleteOutputMode (ClientPtr client)
+{
+    REQUEST(xRRDeleteOutputModeReq);
+    RRModePtr	mode;
+    RROutputPtr	output;
+    
+    REQUEST_SIZE_MATCH(xRRDeleteOutputModeReq);
+    output = LookupOutput(client, stuff->output, DixReadAccess);
+
+    if (!output)
+    {
+	client->errorValue = stuff->output;
+	return RRErrorBase + BadRROutput;
+    }
+    
+    mode = LookupIDByType (stuff->mode, RRModeType);
+    if (!mode)
+    {
+	client->errorValue = stuff->mode;
+	return RRErrorBase + BadRRMode;
+    }
+    
+    return RROutputDeleteUserMode (output, mode);
+}