Update to xserver 1.18.3. Tested by shadchin@ and naddy@.

Note that indirect GLX is now disbled by default.

16 files changed, 1016 insertions, 183 deletions

diff --git a/xserver/randr/Makefile.am b/xserver/randr/Makefile.am
index ccaff3f02..90dc9ec9a 100644
--- a/xserver/randr/Makefile.am
+++ b/xserver/randr/Makefile.am
@@ -15,6 +15,7 @@ librandr_la_SOURCES =	\
 	rrdispatch.c	\
 	rrinfo.c	\
 	rrmode.c	\
+	rrmonitor.c	\
 	rroutput.c	\
 	rrpointer.c	\
 	rrproperty.c	\
diff --git a/xserver/randr/Makefile.in b/xserver/randr/Makefile.in
index 6526f10e3..f356475ab 100644
--- a/xserver/randr/Makefile.in
+++ b/xserver/randr/Makefile.in
@@ -59,8 +59,7 @@ ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
 am__aclocal_m4_deps = $(top_srcdir)/m4/ac_define_dir.m4 \
 	$(top_srcdir)/m4/libtool.m4 $(top_srcdir)/m4/ltoptions.m4 \
 	$(top_srcdir)/m4/ltsugar.m4 $(top_srcdir)/m4/ltversion.m4 \
-	$(top_srcdir)/m4/lt~obsolete.m4 $(top_srcdir)/m4/xorg-tls.m4 \
-	$(top_srcdir)/configure.ac
+	$(top_srcdir)/m4/lt~obsolete.m4 $(top_srcdir)/configure.ac
 am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
 	$(ACLOCAL_M4)
 mkinstalldirs = $(install_sh) -d
@@ -77,14 +76,15 @@ CONFIG_CLEAN_VPATH_FILES =
 LTLIBRARIES = $(noinst_LTLIBRARIES)
 librandr_la_LIBADD =
 am__librandr_la_SOURCES_DIST = randr.c randrstr.h rrcrtc.c \
-	rrdispatch.c rrinfo.c rrmode.c rroutput.c rrpointer.c \
-	rrproperty.c rrprovider.c rrproviderproperty.c rrscreen.c \
-	rrsdispatch.c rrtransform.h rrtransform.c rrxinerama.c
+	rrdispatch.c rrinfo.c rrmode.c rrmonitor.c rroutput.c \
+	rrpointer.c rrproperty.c rrprovider.c rrproviderproperty.c \
+	rrscreen.c rrsdispatch.c rrtransform.h rrtransform.c \
+	rrxinerama.c
 am__objects_1 = rrxinerama.lo
 @XINERAMA_TRUE@am__objects_2 = $(am__objects_1)
 am_librandr_la_OBJECTS = randr.lo rrcrtc.lo rrdispatch.lo rrinfo.lo \
-	rrmode.lo rroutput.lo rrpointer.lo rrproperty.lo rrprovider.lo \
-	rrproviderproperty.lo rrscreen.lo rrsdispatch.lo \
+	rrmode.lo rrmonitor.lo rroutput.lo rrpointer.lo rrproperty.lo \
+	rrprovider.lo rrproviderproperty.lo rrscreen.lo rrsdispatch.lo \
 	rrtransform.lo $(am__objects_2)
 librandr_la_OBJECTS = $(am_librandr_la_OBJECTS)
 AM_V_lt = $(am__v_lt_@AM_V@)
@@ -256,7 +256,6 @@ GLAMOR_LIBS = @GLAMOR_LIBS@
 GLX_ARCH_DEFINES = @GLX_ARCH_DEFINES@
 GLX_DEFINES = @GLX_DEFINES@
 GLX_SYS_LIBS = @GLX_SYS_LIBS@
-GLX_TLS = @GLX_TLS@
 GL_CFLAGS = @GL_CFLAGS@
 GL_LIBS = @GL_LIBS@
 GREP = @GREP@
@@ -386,8 +385,6 @@ XEPHYR_INCS = @XEPHYR_INCS@
 XEPHYR_LIBS = @XEPHYR_LIBS@
 XF86CONFIGDIR = @XF86CONFIGDIR@
 XF86CONFIGFILE = @XF86CONFIGFILE@
-XF86VIDMODE_CFLAGS = @XF86VIDMODE_CFLAGS@
-XF86VIDMODE_LIBS = @XF86VIDMODE_LIBS@
 XKB_BASE_DIRECTORY = @XKB_BASE_DIRECTORY@
 XKB_BIN_DIRECTORY = @XKB_BIN_DIRECTORY@
 XKB_COMPILED_DIR = @XKB_COMPILED_DIR@
@@ -516,9 +513,9 @@ AM_CFLAGS = $(DIX_CFLAGS)
 XINERAMA_SRCS = rrxinerama.c
 @XORG_TRUE@sdk_HEADERS = randrstr.h rrtransform.h
 librandr_la_SOURCES = randr.c randrstr.h rrcrtc.c rrdispatch.c \
-	rrinfo.c rrmode.c rroutput.c rrpointer.c rrproperty.c \
-	rrprovider.c rrproviderproperty.c rrscreen.c rrsdispatch.c \
-	rrtransform.h rrtransform.c $(am__append_1)
+	rrinfo.c rrmode.c rrmonitor.c rroutput.c rrpointer.c \
+	rrproperty.c rrprovider.c rrproviderproperty.c rrscreen.c \
+	rrsdispatch.c rrtransform.h rrtransform.c $(am__append_1)
 all: all-am
 
 .SUFFIXES:
@@ -578,6 +575,7 @@ distclean-compile:
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/rrdispatch.Plo@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/rrinfo.Plo@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/rrmode.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/rrmonitor.Plo@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/rroutput.Plo@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/rrpointer.Plo@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/rrproperty.Plo@am__quote@
diff --git a/xserver/randr/randr.c b/xserver/randr/randr.c
index 6e3f14b4e..ad1dda227 100644
--- a/xserver/randr/randr.c
+++ b/xserver/randr/randr.c
@@ -98,6 +98,8 @@ RRCloseScreen(ScreenPtr pScreen)
     if (pScrPriv->provider)
         RRProviderDestroy(pScrPriv->provider);
 
+    RRMonitorClose(pScreen);
+
     free(pScrPriv->crtcs);
     free(pScrPriv->outputs);
     free(pScrPriv);
@@ -333,6 +335,8 @@ RRScreenInit(ScreenPtr pScreen)
     pScrPriv->numCrtcs = 0;
     pScrPriv->crtcs = NULL;
 
+    RRMonitorInit(pScreen);
+
     RRNScreens += 1;            /* keep count of screens that implement randr */
     return TRUE;
 }
diff --git a/xserver/randr/randrstr.h b/xserver/randr/randrstr.h
index 13e6a8596..472721a5a 100644
--- a/xserver/randr/randrstr.h
+++ b/xserver/randr/randrstr.h
@@ -64,10 +64,10 @@ typedef XID RROutput;
 typedef XID RRCrtc;
 typedef XID RRProvider;
 
-extern _X_EXPORT int RREventBase, RRErrorBase;
+extern int RREventBase, RRErrorBase;
 
-extern _X_EXPORT int (*ProcRandrVector[RRNumberRequests]) (ClientPtr);
-extern _X_EXPORT int (*SProcRandrVector[RRNumberRequests]) (ClientPtr);
+extern int (*ProcRandrVector[RRNumberRequests]) (ClientPtr);
+extern int (*SProcRandrVector[RRNumberRequests]) (ClientPtr);
 
 /*
  * Modeline for a monitor. Name follows directly after this struct
@@ -80,6 +80,7 @@ typedef struct _rrProperty RRPropertyRec, *RRPropertyPtr;
 typedef struct _rrCrtc RRCrtcRec, *RRCrtcPtr;
 typedef struct _rrOutput RROutputRec, *RROutputPtr;
 typedef struct _rrProvider RRProviderRec, *RRProviderPtr;
+typedef struct _rrMonitor RRMonitorRec, *RRMonitorPtr;
 
 struct _rrMode {
     int refcnt;
@@ -169,6 +170,22 @@ struct _rrProvider {
     struct _rrProvider *output_source;
 };
 
+typedef struct _rrMonitorGeometry {
+    BoxRec box;
+    CARD32 mmWidth;
+    CARD32 mmHeight;
+} RRMonitorGeometryRec, *RRMonitorGeometryPtr;
+
+struct _rrMonitor {
+    Atom name;
+    ScreenPtr pScreen;
+    int numOutputs;
+    RROutput *outputs;
+    Bool primary;
+    Bool automatic;
+    RRMonitorGeometryRec geometry;
+};
+
 #if RANDR_12_INTERFACE
 typedef Bool (*RRScreenSetSizeProcPtr) (ScreenPtr pScreen,
                                         CARD16 width,
@@ -338,6 +355,9 @@ typedef struct _rrScrPriv {
 
     RRProviderDestroyProcPtr rrProviderDestroy;
 
+    int numMonitors;
+    RRMonitorPtr *monitors;
+
 } rrScrPrivRec, *rrScrPrivPtr;
 
 extern _X_EXPORT DevPrivateKeyRec rrPrivKeyRec;
@@ -377,8 +397,8 @@ typedef struct _RRClient {
 /*  RRTimesRec	times[0]; */
 } RRClientRec, *RRClientPtr;
 
-extern _X_EXPORT RESTYPE RRClientType, RREventType;     /* resource types for event masks */
-extern _X_EXPORT DevPrivateKeyRec RRClientPrivateKeyRec;
+extern RESTYPE RRClientType, RREventType;     /* resource types for event masks */
+extern DevPrivateKeyRec RRClientPrivateKeyRec;
 
 #define RRClientPrivateKey (&RRClientPrivateKeyRec)
 extern _X_EXPORT RESTYPE RRCrtcType, RRModeType, RROutputType, RRProviderType;
@@ -981,6 +1001,39 @@ extern _X_EXPORT void
  RRXineramaExtensionInit(void);
 #endif
 
+void
+RRMonitorInit(ScreenPtr screen);
+
+Bool
+RRMonitorMakeList(ScreenPtr screen, Bool get_active, RRMonitorPtr *monitors_ret, int *nmon_ret);
+
+int
+RRMonitorCountList(ScreenPtr screen);
+
+void
+RRMonitorFreeList(RRMonitorPtr monitors, int nmon);
+
+void
+RRMonitorClose(ScreenPtr screen);
+
+RRMonitorPtr
+RRMonitorAlloc(int noutput);
+
+int
+RRMonitorAdd(ClientPtr client, ScreenPtr screen, RRMonitorPtr monitor);
+
+void
+RRMonitorFree(RRMonitorPtr monitor);
+
+int
+ProcRRGetMonitors(ClientPtr client);
+
+int
+ProcRRSetMonitor(ClientPtr client);
+
+int
+ProcRRDeleteMonitor(ClientPtr client);
+
 #endif                          /* _RANDRSTR_H_ */
 
 /*
diff --git a/xserver/randr/rrcrtc.c b/xserver/randr/rrcrtc.c
index 349874514..9bc456bdc 100644
--- a/xserver/randr/rrcrtc.c
+++ b/xserver/randr/rrcrtc.c
@@ -65,8 +65,8 @@ RRCrtcCreate(ScreenPtr pScreen, void *devPrivate)
 
     /* make space for the crtc pointer */
     if (pScrPriv->numCrtcs)
-        crtcs = realloc(pScrPriv->crtcs,
-                        (pScrPriv->numCrtcs + 1) * sizeof(RRCrtcPtr));
+        crtcs = reallocarray(pScrPriv->crtcs,
+                             pScrPriv->numCrtcs + 1, sizeof(RRCrtcPtr));
     else
         crtcs = malloc(sizeof(RRCrtcPtr));
     if (!crtcs)
@@ -176,10 +176,10 @@ RRCrtcNotify(RRCrtcPtr crtc,
 
         if (numOutputs) {
             if (crtc->numOutputs)
-                newoutputs = realloc(crtc->outputs,
-                                     numOutputs * sizeof(RROutputPtr));
+                newoutputs = reallocarray(crtc->outputs,
+                                          numOutputs, sizeof(RROutputPtr));
             else
-                newoutputs = malloc(numOutputs * sizeof(RROutputPtr));
+                newoutputs = xallocarray(numOutputs, sizeof(RROutputPtr));
             if (!newoutputs)
                 return FALSE;
         }
@@ -387,14 +387,14 @@ RRCrtcDetachScanoutPixmap(RRCrtcPtr crtc)
 
 static Bool
 rrCreateSharedPixmap(RRCrtcPtr crtc, int width, int height,
-                     int x, int y)
+                     int x, int y, Rotation rotation)
 {
     PixmapPtr mpix, spix;
     ScreenPtr master = crtc->pScreen->current_master;
     Bool ret;
     int depth;
     PixmapPtr mscreenpix;
-    PixmapPtr protopix = crtc->pScreen->current_master->GetScreenPixmap(crtc->pScreen->current_master);
+    PixmapPtr protopix = master->GetScreenPixmap(master);
     rrScrPriv(crtc->pScreen);
 
     /* create a pixmap on the master screen,
@@ -434,13 +434,33 @@ rrCreateSharedPixmap(RRCrtcPtr crtc, int width, int height,
 
     crtc->scanout_pixmap = spix;
 
-    master->StartPixmapTracking(mscreenpix, spix, x, y);
+    master->StartPixmapTracking(mscreenpix, spix, x, y, 0, 0, rotation);
     return TRUE;
 }
 
+static void crtc_to_box(BoxPtr box, RRCrtcPtr crtc)
+{
+    box->x1 = crtc->x;
+    box->y1 = crtc->y;
+    switch (crtc->rotation) {
+    case RR_Rotate_0:
+    case RR_Rotate_180:
+    default:
+        box->x2 = crtc->x + crtc->mode->mode.width;
+        box->y2 = crtc->y + crtc->mode->mode.height;
+        break;
+    case RR_Rotate_90:
+    case RR_Rotate_270:
+        box->x2 = crtc->x + crtc->mode->mode.height;
+        box->y2 = crtc->y + crtc->mode->mode.width;
+        break;
+    }
+}
+
 static Bool
 rrCheckPixmapBounding(ScreenPtr pScreen,
-                      RRCrtcPtr rr_crtc, int x, int y, int w, int h)
+                      RRCrtcPtr rr_crtc, Rotation rotation,
+                      int x, int y, int w, int h)
 {
     RegionRec root_pixmap_region, total_region, new_crtc_region;
     int c;
@@ -457,18 +477,23 @@ rrCheckPixmapBounding(ScreenPtr pScreen,
     /* have to iterate all the crtcs of the attached gpu masters
        and all their output slaves */
     for (c = 0; c < pScrPriv->numCrtcs; c++) {
-        if (pScrPriv->crtcs[c] == rr_crtc) {
+        RRCrtcPtr crtc = pScrPriv->crtcs[c];
+
+        if (crtc == rr_crtc) {
             newbox.x1 = x;
-            newbox.x2 = x + w;
             newbox.y1 = y;
-            newbox.y2 = y + h;
+            if (rotation == RR_Rotate_90 ||
+                rotation == RR_Rotate_270) {
+                newbox.x2 = x + h;
+                newbox.y2 = y + w;
+            } else {
+                newbox.x2 = x + w;
+                newbox.y2 = y + h;
+            }
         } else {
-            if (!pScrPriv->crtcs[c]->mode)
+            if (!crtc->mode)
                 continue;
-            newbox.x1 = pScrPriv->crtcs[c]->x;
-            newbox.x2 = pScrPriv->crtcs[c]->x + pScrPriv->crtcs[c]->mode->mode.width;
-            newbox.y1 = pScrPriv->crtcs[c]->y;
-            newbox.y2 = pScrPriv->crtcs[c]->y + pScrPriv->crtcs[c]->mode->mode.height;
+            crtc_to_box(&newbox, crtc);
         }
         RegionInit(&new_crtc_region, &newbox, 1);
         RegionUnion(&total_region, &total_region, &new_crtc_region);
@@ -477,19 +502,24 @@ rrCheckPixmapBounding(ScreenPtr pScreen,
     xorg_list_for_each_entry(slave, &pScreen->output_slave_list, output_head) {
         rrScrPrivPtr    slave_priv = rrGetScrPriv(slave);
         for (c = 0; c < slave_priv->numCrtcs; c++) {
-            if (slave_priv->crtcs[c] == rr_crtc) {
+            RRCrtcPtr slave_crtc = slave_priv->crtcs[c];
+
+            if (slave_crtc == rr_crtc) {
                 newbox.x1 = x;
-                newbox.x2 = x + w;
                 newbox.y1 = y;
-                newbox.y2 = y + h;
+                if (rotation == RR_Rotate_90 ||
+                    rotation == RR_Rotate_270) {
+                    newbox.x2 = x + h;
+                    newbox.y2 = y + w;
+                } else {
+                    newbox.x2 = x + w;
+                    newbox.y2 = y + h;
+                }
             }
             else {
-                if (!slave_priv->crtcs[c]->mode)
+                if (!slave_crtc->mode)
                     continue;
-                newbox.x1 = slave_priv->crtcs[c]->x;
-                newbox.x2 = slave_priv->crtcs[c]->x + slave_priv->crtcs[c]->mode->mode.width;
-                newbox.y1 = slave_priv->crtcs[c]->y;
-                newbox.y2 = slave_priv->crtcs[c]->y + slave_priv->crtcs[c]->mode->mode.height;
+                crtc_to_box(&newbox, slave_crtc);
             }
             RegionInit(&new_crtc_region, &newbox, 1);
             RegionUnion(&total_region, &total_region, &new_crtc_region);
@@ -557,12 +587,12 @@ RRCrtcSet(RRCrtcPtr crtc,
                 height = mode->mode.height;
             }
             ret = rrCheckPixmapBounding(master, crtc,
-                                        x, y, width, height);
+                                        rotation, x, y, width, height);
             if (!ret)
                 return FALSE;
 
             if (pScreen->current_master) {
-                ret = rrCreateSharedPixmap(crtc, width, height, x, y);
+                ret = rrCreateSharedPixmap(crtc, width, height, x, y, rotation);
             }
         }
 #if RANDR_12_INTERFACE
@@ -794,7 +824,7 @@ RRCrtcGammaSetSize(RRCrtcPtr crtc, int size)
     if (size == crtc->gammaSize)
         return TRUE;
     if (size) {
-        gamma = malloc(size * 3 * sizeof(CARD16));
+        gamma = xallocarray(size, 3 * sizeof(CARD16));
         if (!gamma)
             return FALSE;
     }
@@ -1023,7 +1053,7 @@ ProcRRSetCrtcConfig(ClientPtr client)
             return BadMatch;
     }
     if (numOutputs) {
-        outputs = malloc(numOutputs * sizeof(RROutputPtr));
+        outputs = xallocarray(numOutputs, sizeof(RROutputPtr));
         if (!outputs)
             return BadAlloc;
     }
@@ -1571,7 +1601,8 @@ ProcRRGetCrtcTransform(ClientPtr client)
     return Success;
 }
 
-static Bool check_all_screen_crtcs(ScreenPtr pScreen, int *x, int *y)
+static Bool
+check_all_screen_crtcs(ScreenPtr pScreen, int *x, int *y)
 {
     rrScrPriv(pScreen);
     int i;
@@ -1591,7 +1622,8 @@ static Bool check_all_screen_crtcs(ScreenPtr pScreen, int *x, int *y)
     return FALSE;
 }
 
-static Bool constrain_all_screen_crtcs(DeviceIntPtr pDev, ScreenPtr pScreen, int *x, int *y)
+static Bool
+constrain_all_screen_crtcs(DeviceIntPtr pDev, ScreenPtr pScreen, int *x, int *y)
 {
     rrScrPriv(pScreen);
     int i;
diff --git a/xserver/randr/rrdispatch.c b/xserver/randr/rrdispatch.c
index 7fee2bf9c..314e4ea52 100644
--- a/xserver/randr/rrdispatch.c
+++ b/xserver/randr/rrdispatch.c
@@ -256,4 +256,7 @@ int (*ProcRandrVector[RRNumberRequests]) (ClientPtr) = {
         ProcRRChangeProviderProperty, /* 39 */
         ProcRRDeleteProviderProperty, /* 40 */
         ProcRRGetProviderProperty,    /* 41 */
+        ProcRRGetMonitors,            /* 42 */
+        ProcRRSetMonitor,             /* 43 */
+        ProcRRDeleteMonitor,          /* 44 */
 };
diff --git a/xserver/randr/rrinfo.c b/xserver/randr/rrinfo.c
index fc57bd408..24245b7b6 100644
--- a/xserver/randr/rrinfo.c
+++ b/xserver/randr/rrinfo.c
@@ -55,8 +55,8 @@ RROldModeAdd(RROutputPtr output, RRScreenSizePtr size, int refresh)
         }
 
     if (output->numModes)
-        modes = realloc(output->modes,
-                        (output->numModes + 1) * sizeof(RRModePtr));
+        modes = reallocarray(output->modes,
+                             output->numModes + 1, sizeof(RRModePtr));
     else
         modes = malloc(sizeof(RRModePtr));
     if (!modes) {
@@ -266,8 +266,8 @@ RRRegisterSize(ScreenPtr pScreen,
     for (i = 0; i < pScrPriv->nSizes; i++)
         if (RRScreenSizeMatches(&tmp, &pScrPriv->pSizes[i]))
             return &pScrPriv->pSizes[i];
-    pNew = realloc(pScrPriv->pSizes,
-                   (pScrPriv->nSizes + 1) * sizeof(RRScreenSize));
+    pNew = reallocarray(pScrPriv->pSizes,
+                        pScrPriv->nSizes + 1, sizeof(RRScreenSize));
     if (!pNew)
         return 0;
     pNew[pScrPriv->nSizes++] = tmp;
@@ -289,7 +289,7 @@ RRRegisterRate(ScreenPtr pScreen, RRScreenSizePtr pSize, int rate)
         if (pSize->pRates[i].rate == rate)
             return TRUE;
 
-    pNew = realloc(pSize->pRates, (pSize->nRates + 1) * sizeof(RRScreenRate));
+    pNew = reallocarray(pSize->pRates, pSize->nRates + 1, sizeof(RRScreenRate));
     if (!pNew)
         return FALSE;
     pRate = &pNew[pSize->nRates++];
diff --git a/xserver/randr/rrmode.c b/xserver/randr/rrmode.c
index befac4741..a7aa43320 100644
--- a/xserver/randr/rrmode.c
+++ b/xserver/randr/rrmode.c
@@ -79,7 +79,7 @@ RRModeCreate(xRRModeInfo * modeInfo, const char *name, ScreenPtr userScreen)
     mode->userScreen = userScreen;
 
     if (num_modes)
-        newModes = realloc(modes, (num_modes + 1) * sizeof(RRModePtr));
+        newModes = reallocarray(modes, num_modes + 1, sizeof(RRModePtr));
     else
         newModes = malloc(sizeof(RRModePtr));
 
@@ -166,7 +166,7 @@ RRModesForScreen(ScreenPtr pScreen, int *num_ret)
     RRModePtr *screen_modes;
     int num_screen_modes = 0;
 
-    screen_modes = malloc((num_modes ? num_modes : 1) * sizeof(RRModePtr));
+    screen_modes = xallocarray((num_modes ? num_modes : 1), sizeof(RRModePtr));
     if (!screen_modes)
         return NULL;
 
diff --git a/xserver/randr/rrmonitor.c b/xserver/randr/rrmonitor.c
new file mode 100644
index 000000000..ba310eaa4
--- /dev/null
+++ b/xserver/randr/rrmonitor.c
@@ -0,0 +1,754 @@
+/*
+ * Copyright © 2014 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 "swaprep.h"
+
+static Atom
+RRMonitorCrtcName(RRCrtcPtr crtc)
+{
+    char        name[20];
+
+    if (crtc->numOutputs) {
+        RROutputPtr     output = crtc->outputs[0];
+        return MakeAtom(output->name, output->nameLength, TRUE);
+    }
+    sprintf(name, "Monitor-%08lx", (unsigned long int)crtc->id);
+    return MakeAtom(name, strlen(name), TRUE);
+}
+
+static Bool
+RRMonitorCrtcPrimary(RRCrtcPtr crtc)
+{
+    ScreenPtr screen = crtc->pScreen;
+    rrScrPrivPtr pScrPriv = rrGetScrPriv(screen);
+    int o;
+
+    for (o = 0; o < crtc->numOutputs; o++)
+        if (crtc->outputs[o] == pScrPriv->primaryOutput)
+            return TRUE;
+    return FALSE;
+}
+
+#define DEFAULT_PIXELS_PER_MM   (96.0 / 25.4)
+
+static void
+RRMonitorGetCrtcGeometry(RRCrtcPtr crtc, RRMonitorGeometryPtr geometry)
+{
+    ScreenPtr screen = crtc->pScreen;
+    rrScrPrivPtr pScrPriv = rrGetScrPriv(screen);
+    BoxRec      panned_area;
+
+    /* Check to see if crtc is panned and return the full area when applicable. */
+    if (pScrPriv && pScrPriv->rrGetPanning &&
+        pScrPriv->rrGetPanning(screen, crtc, &panned_area, NULL, NULL) &&
+        (panned_area.x2 > panned_area.x1) &&
+        (panned_area.y2 > panned_area.y1)) {
+        geometry->box = panned_area;
+    }
+    else {
+        int width, height;
+
+        RRCrtcGetScanoutSize(crtc, &width, &height);
+        geometry->box.x1 = crtc->x;
+        geometry->box.y1 = crtc->y;
+        geometry->box.x2 = geometry->box.x1 + width;
+        geometry->box.y2 = geometry->box.y1 + height;
+    }
+    if (crtc->numOutputs && crtc->outputs[0]->mmWidth && crtc->outputs[0]->mmHeight) {
+        RROutputPtr output = crtc->outputs[0];
+        geometry->mmWidth = output->mmWidth;
+        geometry->mmHeight = output->mmHeight;
+    } else {
+        geometry->mmWidth = floor ((geometry->box.x2 - geometry->box.x1) / DEFAULT_PIXELS_PER_MM + 0.5);
+        geometry->mmHeight = floor ((geometry->box.y2 - geometry->box.y1) / DEFAULT_PIXELS_PER_MM + 0.5);
+    }
+}
+
+static Bool
+RRMonitorSetFromServer(RRCrtcPtr crtc, RRMonitorPtr monitor)
+{
+    int o;
+
+    monitor->name = RRMonitorCrtcName(crtc);
+    monitor->pScreen = crtc->pScreen;
+    monitor->numOutputs = crtc->numOutputs;
+    monitor->outputs = calloc(crtc->numOutputs, sizeof(RRCrtc));
+    if (!monitor->outputs)
+        return FALSE;
+    for (o = 0; o < crtc->numOutputs; o++)
+        monitor->outputs[o] = crtc->outputs[o]->id;
+    monitor->primary = RRMonitorCrtcPrimary(crtc);
+    monitor->automatic = TRUE;
+    RRMonitorGetCrtcGeometry(crtc, &monitor->geometry);
+    return TRUE;
+}
+
+static Bool
+RRMonitorAutomaticGeometry(RRMonitorPtr monitor)
+{
+    return (monitor->geometry.box.x1 == 0 &&
+            monitor->geometry.box.y1 == 0 &&
+            monitor->geometry.box.x2 == 0 &&
+            monitor->geometry.box.y2 == 0);
+}
+
+static void
+RRMonitorGetGeometry(RRMonitorPtr monitor, RRMonitorGeometryPtr geometry)
+{
+    if (RRMonitorAutomaticGeometry(monitor) && monitor->numOutputs > 0) {
+        ScreenPtr               screen = monitor->pScreen;
+        rrScrPrivPtr            pScrPriv = rrGetScrPriv(screen);
+        RRMonitorGeometryRec    first = { .box = { 0, 0, 0, 0 }, .mmWidth = 0, .mmHeight = 0 };
+        RRMonitorGeometryRec    this;
+        int                     c, o, co;
+        int                     active_crtcs = 0;
+
+        *geometry = first;
+        for (o = 0; o < monitor->numOutputs; o++) {
+            RRCrtcPtr   crtc = NULL;
+            Bool        in_use = FALSE;
+
+            for (c = 0; !in_use && c < pScrPriv->numCrtcs; c++) {
+                crtc = pScrPriv->crtcs[c];
+                if (!crtc->mode)
+                    continue;
+                for (co = 0; !in_use && co < crtc->numOutputs; co++)
+                    if (monitor->outputs[o] == crtc->outputs[co]->id)
+                        in_use = TRUE;
+            }
+
+            if (!in_use)
+                continue;
+
+            RRMonitorGetCrtcGeometry(crtc, &this);
+
+            if (active_crtcs == 0) {
+                first = this;
+                *geometry = this;
+            } else {
+                geometry->box.x1 = min(this.box.x1, geometry->box.x1);
+                geometry->box.x2 = max(this.box.x2, geometry->box.x2);
+                geometry->box.y1 = min(this.box.y1, geometry->box.y1);
+                geometry->box.y2 = max(this.box.y2, geometry->box.y2);
+            }
+            active_crtcs++;
+        }
+
+        /* Adjust physical sizes to account for total area */
+        if (active_crtcs > 1 && first.box.x2 != first.box.x1 && first.box.y2 != first.box.y1) {
+            geometry->mmWidth = (this.box.x2 - this.box.x1) / (first.box.x2 - first.box.x1) * first.mmWidth;
+            geometry->mmHeight = (this.box.y2 - this.box.y1) / (first.box.y2 - first.box.y1) * first.mmHeight;
+        }
+    } else {
+        *geometry = monitor->geometry;
+    }
+}
+
+static Bool
+RRMonitorSetFromClient(RRMonitorPtr client_monitor, RRMonitorPtr monitor)
+{
+    monitor->name = client_monitor->name;
+    monitor->pScreen = client_monitor->pScreen;
+    monitor->numOutputs = client_monitor->numOutputs;
+    monitor->outputs = calloc(client_monitor->numOutputs, sizeof (RROutput));
+    if (!monitor->outputs && client_monitor->numOutputs)
+        return FALSE;
+    memcpy(monitor->outputs, client_monitor->outputs, client_monitor->numOutputs * sizeof (RROutput));
+    monitor->primary = client_monitor->primary;
+    monitor->automatic = client_monitor->automatic;
+    RRMonitorGetGeometry(client_monitor, &monitor->geometry);
+    return TRUE;
+}
+
+typedef struct _rrMonitorList {
+    int         num_client;
+    int         num_server;
+    RRCrtcPtr   *server_crtc;
+    int         num_crtcs;
+    int         client_primary;
+    int         server_primary;
+} RRMonitorListRec, *RRMonitorListPtr;
+
+static Bool
+RRMonitorInitList(ScreenPtr screen, RRMonitorListPtr mon_list, Bool get_active)
+{
+    rrScrPrivPtr        pScrPriv = rrGetScrPriv(screen);
+    int                 m, o, c, sc;
+    int                 numCrtcs;
+    ScreenPtr           slave;
+
+    if (!RRGetInfo(screen, FALSE))
+        return FALSE;
+
+    /* Count the number of crtcs in this and any slave screens */
+    numCrtcs = pScrPriv->numCrtcs;
+    xorg_list_for_each_entry(slave, &screen->output_slave_list, output_head) {
+        rrScrPrivPtr pSlavePriv;
+        pSlavePriv = rrGetScrPriv(slave);
+        numCrtcs += pSlavePriv->numCrtcs;
+    }
+    mon_list->num_crtcs = numCrtcs;
+
+    mon_list->server_crtc = calloc(numCrtcs * 2, sizeof (RRCrtcPtr));
+    if (!mon_list->server_crtc)
+        return FALSE;
+
+    /* Collect pointers to all of the active crtcs */
+    c = 0;
+    for (sc = 0; sc < pScrPriv->numCrtcs; sc++, c++) {
+        if (pScrPriv->crtcs[sc]->mode != NULL)
+            mon_list->server_crtc[c] = pScrPriv->crtcs[sc];
+    }
+
+    xorg_list_for_each_entry(slave, &screen->output_slave_list, output_head) {
+        rrScrPrivPtr pSlavePriv;
+        pSlavePriv = rrGetScrPriv(slave);
+        for (sc = 0; sc < pSlavePriv->numCrtcs; sc++, c++) {
+            if (pSlavePriv->crtcs[sc]->mode != NULL)
+                mon_list->server_crtc[c] = pSlavePriv->crtcs[sc];
+        }
+    }
+
+    /* Walk the list of client-defined monitors, clearing the covered
+     * CRTCs from the full list and finding whether one of the
+     * monitors is primary
+     */
+    mon_list->num_client = pScrPriv->numMonitors;
+    mon_list->client_primary = -1;
+
+    for (m = 0; m < pScrPriv->numMonitors; m++) {
+        RRMonitorPtr monitor = pScrPriv->monitors[m];
+        if (get_active) {
+            RRMonitorGeometryRec geom;
+
+            RRMonitorGetGeometry(monitor, &geom);
+            if (geom.box.x2 - geom.box.x1 == 0 ||
+                geom.box.y2 - geom.box.y1 == 0) {
+                mon_list->num_client--;
+                continue;
+            }
+        }
+        if (monitor->primary && mon_list->client_primary == -1)
+            mon_list->client_primary = m;
+        for (o = 0; o < monitor->numOutputs; o++) {
+            for (c = 0; c < numCrtcs; c++) {
+                RRCrtcPtr       crtc = mon_list->server_crtc[c];
+                if (crtc) {
+                    int             co;
+                    for (co = 0; co < crtc->numOutputs; co++)
+                        if (crtc->outputs[co]->id == monitor->outputs[o]) {
+                            mon_list->server_crtc[c] = NULL;
+                            break;
+                        }
+                }
+            }
+        }
+    }
+
+    /* Now look at the active CRTCs, and count
+     * those not covered by a client monitor, as well
+     * as finding whether one of them is marked primary
+     */
+    mon_list->num_server = 0;
+    mon_list->server_primary = -1;
+
+    for (c = 0; c < mon_list->num_crtcs; c++) {
+        RRCrtcPtr       crtc = mon_list->server_crtc[c];
+
+        if (!crtc)
+            continue;
+
+        mon_list->num_server++;
+
+        if (RRMonitorCrtcPrimary(crtc) && mon_list->server_primary == -1)
+            mon_list->server_primary = c;
+    }
+    return TRUE;
+}
+
+static void
+RRMonitorFiniList(RRMonitorListPtr list)
+{
+    free(list->server_crtc);
+}
+
+/* Construct a complete list of protocol-visible monitors, including
+ * the manually generated ones as well as those generated
+ * automatically from the remaining CRCTs
+ */
+
+Bool
+RRMonitorMakeList(ScreenPtr screen, Bool get_active, RRMonitorPtr *monitors_ret, int *nmon_ret)
+{
+    rrScrPrivPtr        pScrPriv = rrGetScrPriv(screen);
+    RRMonitorListRec    list;
+    int                 m, c;
+    RRMonitorPtr        mon, monitors;
+    Bool                has_primary = FALSE;
+
+    if (!pScrPriv)
+        return FALSE;
+
+    if (!RRMonitorInitList(screen, &list, get_active))
+        return FALSE;
+
+    monitors = calloc(list.num_client + list.num_server, sizeof (RRMonitorRec));
+    if (!monitors) {
+        RRMonitorFiniList(&list);
+        return FALSE;
+    }
+
+    mon = monitors;
+
+    /* Fill in the primary monitor data first
+     */
+    if (list.client_primary >= 0) {
+        RRMonitorSetFromClient(pScrPriv->monitors[list.client_primary], mon);
+        mon++;
+    } else if (list.server_primary >= 0) {
+        RRMonitorSetFromServer(list.server_crtc[list.server_primary], mon);
+        mon++;
+    }
+
+    /* Fill in the client-defined monitors next
+     */
+    for (m = 0; m < pScrPriv->numMonitors; m++) {
+        if (m == list.client_primary)
+            continue;
+        if (get_active) {
+            RRMonitorGeometryRec geom;
+
+            RRMonitorGetGeometry(pScrPriv->monitors[m], &geom);
+            if (geom.box.x2 - geom.box.x1 == 0 ||
+                geom.box.y2 - geom.box.y1 == 0) {
+                continue;
+            }
+        }
+        RRMonitorSetFromClient(pScrPriv->monitors[m], mon);
+        if (has_primary)
+            mon->primary = FALSE;
+        else if (mon->primary)
+            has_primary = TRUE;
+        mon++;
+    }
+
+    /* And finish with the list of crtc-inspired monitors
+     */
+    for (c = 0; c < list.num_crtcs; c++) {
+        RRCrtcPtr crtc = list.server_crtc[c];
+        if (c == list.server_primary && list.client_primary < 0)
+            continue;
+
+        if (!list.server_crtc[c])
+            continue;
+
+        RRMonitorSetFromServer(crtc, mon);
+        if (has_primary)
+            mon->primary = FALSE;
+        else if (mon->primary)
+            has_primary = TRUE;
+        mon++;
+    }
+
+    RRMonitorFiniList(&list);
+    *nmon_ret = list.num_client + list.num_server;
+    *monitors_ret = monitors;
+    return TRUE;
+}
+
+int
+RRMonitorCountList(ScreenPtr screen)
+{
+    RRMonitorListRec    list;
+    int                 nmon;
+
+    if (!RRMonitorInitList(screen, &list, FALSE))
+        return -1;
+    nmon = list.num_client + list.num_server;
+    RRMonitorFiniList(&list);
+    return nmon;
+}
+
+void
+RRMonitorFree(RRMonitorPtr monitor)
+{
+    free(monitor);
+}
+
+RRMonitorPtr
+RRMonitorAlloc(int noutput)
+{
+    RRMonitorPtr        monitor;
+
+    monitor = calloc(1, sizeof (RRMonitorRec) + noutput * sizeof (RROutput));
+    if (!monitor)
+        return NULL;
+    monitor->numOutputs = noutput;
+    monitor->outputs = (RROutput *) (monitor + 1);
+    return monitor;
+}
+
+static int
+RRMonitorDelete(ClientPtr client, ScreenPtr screen, Atom name)
+{
+    rrScrPrivPtr        pScrPriv = rrGetScrPriv(screen);
+    int                 m;
+
+    if (!pScrPriv) {
+        client->errorValue = name;
+        return BadAtom;
+    }
+
+    for (m = 0; m < pScrPriv->numMonitors; m++) {
+        RRMonitorPtr    monitor = pScrPriv->monitors[m];
+        if (monitor->name == name) {
+            memmove(pScrPriv->monitors + m, pScrPriv->monitors + m + 1,
+                    (pScrPriv->numMonitors - (m + 1)) * sizeof (RRMonitorPtr));
+            --pScrPriv->numMonitors;
+            RRMonitorFree(monitor);
+            return Success;
+        }
+    }
+
+    client->errorValue = name;
+    return BadValue;
+}
+
+static Bool
+RRMonitorMatchesOutputName(ScreenPtr screen, Atom name)
+{
+    rrScrPrivPtr        pScrPriv = rrGetScrPriv(screen);
+    int                 o;
+    const char          *str = NameForAtom(name);
+    int                 len = strlen(str);
+
+    for (o = 0; o < pScrPriv->numOutputs; o++) {
+        RROutputPtr     output = pScrPriv->outputs[o];
+
+        if (output->nameLength == len && !memcmp(output->name, str, len))
+            return TRUE;
+    }
+    return FALSE;
+}
+
+int
+RRMonitorAdd(ClientPtr client, ScreenPtr screen, RRMonitorPtr monitor)
+{
+    rrScrPrivPtr        pScrPriv = rrGetScrPriv(screen);
+    int                 m;
+    ScreenPtr           slave;
+    RRMonitorPtr        *monitors;
+
+    if (!pScrPriv)
+        return BadAlloc;
+
+    /* 	'name' must not match the name of any Output on the screen, or
+     *	a Value error results.
+     */
+
+    if (RRMonitorMatchesOutputName(screen, monitor->name)) {
+        client->errorValue = monitor->name;
+        return BadValue;
+    }
+
+    xorg_list_for_each_entry(slave, &screen->output_slave_list, output_head) {
+        if (RRMonitorMatchesOutputName(slave, monitor->name)) {
+            client->errorValue = monitor->name;
+            return BadValue;
+        }
+    }
+
+    /* 'name' must not match the name of any Monitor on the screen, or
+     * a Value error results.
+     */
+
+    for (m = 0; m < pScrPriv->numMonitors; m++) {
+        if (pScrPriv->monitors[m]->name == monitor->name) {
+            client->errorValue = monitor->name;
+            return BadValue;
+        }
+    }
+
+    /* Allocate space for the new pointer. This is done before
+     * removing matching monitors as it may fail, and the request
+     * needs to not have any side-effects on failure
+     */
+    if (pScrPriv->numMonitors)
+        monitors = reallocarray(pScrPriv->monitors,
+                                pScrPriv->numMonitors + 1,
+                                sizeof (RRMonitorPtr));
+    else
+        monitors = malloc(sizeof (RRMonitorPtr));
+
+    if (!monitors)
+        return BadAlloc;
+
+    pScrPriv->monitors = monitors;
+
+    for (m = 0; m < pScrPriv->numMonitors; m++) {
+        RRMonitorPtr    existing = pScrPriv->monitors[m];
+        int             o, eo;
+
+	/* If 'name' matches an existing Monitor on the screen, the
+         * existing one will be deleted as if RRDeleteMonitor were called.
+         */
+        if (existing->name == monitor->name) {
+            (void) RRMonitorDelete(client, screen, existing->name);
+            continue;
+        }
+
+        /* For each output in 'info.outputs', each one is removed from all
+         * pre-existing Monitors. If removing the output causes the list
+         * of outputs for that Monitor to become empty, then that
+         * Monitor will be deleted as if RRDeleteMonitor were called.
+         */
+
+        for (eo = 0; eo < existing->numOutputs; eo++) {
+            for (o = 0; o < monitor->numOutputs; o++) {
+                if (monitor->outputs[o] == existing->outputs[eo]) {
+                    memmove(existing->outputs + eo, existing->outputs + eo + 1,
+                            (existing->numOutputs - (eo + 1)) * sizeof (RROutput));
+                    --existing->numOutputs;
+                    --eo;
+                    break;
+                }
+            }
+            if (existing->numOutputs == 0) {
+                (void) RRMonitorDelete(client, screen, existing->name);
+                break;
+            }
+        }
+        if (monitor->primary)
+            existing->primary = FALSE;
+    }
+
+    /* Add the new one to the list
+     */
+    pScrPriv->monitors[pScrPriv->numMonitors++] = monitor;
+
+    return Success;
+}
+
+void
+RRMonitorFreeList(RRMonitorPtr monitors, int nmon)
+{
+    int m;
+
+    for (m = 0; m < nmon; m++)
+        free(monitors[m].outputs);
+    free(monitors);
+}
+
+void
+RRMonitorInit(ScreenPtr screen)
+{
+    rrScrPrivPtr pScrPriv = rrGetScrPriv(screen);
+
+    if (!pScrPriv)
+        return;
+
+    pScrPriv->numMonitors = 0;
+    pScrPriv->monitors = NULL;
+}
+
+void
+RRMonitorClose(ScreenPtr screen)
+{
+    rrScrPrivPtr        pScrPriv = rrGetScrPriv(screen);
+    int                 m;
+
+    if (!pScrPriv)
+        return;
+
+    for (m = 0; m < pScrPriv->numMonitors; m++)
+        RRMonitorFree(pScrPriv->monitors[m]);
+    free(pScrPriv->monitors);
+    pScrPriv->monitors = NULL;
+    pScrPriv->numMonitors = 0;
+}
+
+static CARD32
+RRMonitorTimestamp(ScreenPtr screen)
+{
+    rrScrPrivPtr        pScrPriv = rrGetScrPriv(screen);
+
+    /* XXX should take client monitor changes into account */
+    return pScrPriv->lastConfigTime.milliseconds;
+}
+
+int
+ProcRRGetMonitors(ClientPtr client)
+{
+    REQUEST(xRRGetMonitorsReq);
+    xRRGetMonitorsReply rep = {
+        .type = X_Reply,
+        .sequenceNumber = client->sequence,
+        .length = 0,
+    };
+    WindowPtr           window;
+    ScreenPtr           screen;
+    int                 r;
+    RRMonitorPtr        monitors;
+    int                 nmonitors;
+    int                 noutputs;
+    int                 m;
+    Bool                get_active;
+    REQUEST_SIZE_MATCH(xRRGetMonitorsReq);
+    r = dixLookupWindow(&window, stuff->window, client, DixGetAttrAccess);
+    if (r != Success)
+        return r;
+    screen = window->drawable.pScreen;
+
+    get_active = stuff->get_active;
+    if (!RRMonitorMakeList(screen, get_active, &monitors, &nmonitors))
+        return BadAlloc;
+
+    rep.timestamp = RRMonitorTimestamp(screen);
+
+    noutputs = 0;
+    for (m = 0; m < nmonitors; m++) {
+        rep.length += SIZEOF(xRRMonitorInfo) >> 2;
+        rep.length += monitors[m].numOutputs;
+        noutputs += monitors[m].numOutputs;
+    }
+
+    rep.nmonitors = nmonitors;
+    rep.noutputs = noutputs;
+
+    if (client->swapped) {
+        swaps(&rep.sequenceNumber);
+        swapl(&rep.length);
+        swapl(&rep.timestamp);
+        swapl(&rep.nmonitors);
+        swapl(&rep.noutputs);
+    }
+    WriteToClient(client, sizeof(xRRGetMonitorsReply), &rep);
+
+    client->pSwapReplyFunc = (ReplySwapPtr) CopySwap32Write;
+
+    for (m = 0; m < nmonitors; m++) {
+        RRMonitorPtr    monitor = &monitors[m];
+        xRRMonitorInfo  info = {
+            .name = monitor->name,
+            .primary = monitor->primary,
+            .automatic = monitor->automatic,
+            .noutput = monitor->numOutputs,
+            .x = monitor->geometry.box.x1,
+            .y = monitor->geometry.box.y1,
+            .width = monitor->geometry.box.x2 - monitor->geometry.box.x1,
+            .height = monitor->geometry.box.y2 - monitor->geometry.box.y1,
+            .widthInMillimeters = monitor->geometry.mmWidth,
+            .heightInMillimeters = monitor->geometry.mmHeight,
+        };
+        if (client->swapped) {
+            swapl(&info.name);
+            swaps(&info.noutput);
+            swaps(&info.x);
+            swaps(&info.y);
+            swaps(&info.width);
+            swaps(&info.height);
+            swapl(&info.widthInMillimeters);
+            swapl(&info.heightInMillimeters);
+        }
+
+        WriteToClient(client, sizeof(xRRMonitorInfo), &info);
+        WriteSwappedDataToClient(client, monitor->numOutputs * sizeof (RROutput), monitor->outputs);
+    }
+
+    RRMonitorFreeList(monitors, nmonitors);
+
+    return Success;
+}
+
+int
+ProcRRSetMonitor(ClientPtr client)
+{
+    REQUEST(xRRSetMonitorReq);
+    WindowPtr           window;
+    ScreenPtr           screen;
+    RRMonitorPtr        monitor;
+    int                 r;
+
+    REQUEST_AT_LEAST_SIZE(xRRSetMonitorReq);
+
+    if (stuff->monitor.noutput != stuff->length - (SIZEOF(xRRSetMonitorReq) >> 2))
+        return BadLength;
+
+    r = dixLookupWindow(&window, stuff->window, client, DixGetAttrAccess);
+    if (r != Success)
+        return r;
+    screen = window->drawable.pScreen;
+
+    if (!ValidAtom(stuff->monitor.name))
+        return BadAtom;
+
+    /* Allocate the new monitor */
+    monitor = RRMonitorAlloc(stuff->monitor.noutput);
+    if (!monitor)
+        return BadAlloc;
+
+    /* Fill in the bits from the request */
+    monitor->pScreen = screen;
+    monitor->name = stuff->monitor.name;
+    monitor->primary = stuff->monitor.primary;
+    monitor->automatic = FALSE;
+    memcpy(monitor->outputs, stuff + 1, stuff->monitor.noutput * sizeof (RROutput));
+    monitor->geometry.box.x1 = stuff->monitor.x;
+    monitor->geometry.box.y1 = stuff->monitor.y;
+    monitor->geometry.box.x2 = stuff->monitor.x + stuff->monitor.width;
+    monitor->geometry.box.y2 = stuff->monitor.y + stuff->monitor.height;
+    monitor->geometry.mmWidth = stuff->monitor.widthInMillimeters;
+    monitor->geometry.mmHeight = stuff->monitor.heightInMillimeters;
+
+    r = RRMonitorAdd(client, screen, monitor);
+    if (r == Success)
+        RRSendConfigNotify(screen);
+    else
+        RRMonitorFree(monitor);
+    return r;
+}
+
+int
+ProcRRDeleteMonitor(ClientPtr client)
+{
+    REQUEST(xRRDeleteMonitorReq);
+    WindowPtr           window;
+    ScreenPtr           screen;
+    int                 r;
+
+    REQUEST_SIZE_MATCH(xRRDeleteMonitorReq);
+    r = dixLookupWindow(&window, stuff->window, client, DixGetAttrAccess);
+    if (r != Success)
+        return r;
+    screen = window->drawable.pScreen;
+
+    if (!ValidAtom(stuff->name)) {
+        client->errorValue = stuff->name;
+        return BadAtom;
+    }
+
+    r = RRMonitorDelete(client, screen, stuff->name);
+    if (r == Success)
+        RRSendConfigNotify(screen);
+    return r;
+}
diff --git a/xserver/randr/rroutput.c b/xserver/randr/rroutput.c
index 548e07d1d..686ae49a6 100644
--- a/xserver/randr/rroutput.c
+++ b/xserver/randr/rroutput.c
@@ -31,15 +31,27 @@ RESTYPE RROutputType;
 void
 RROutputChanged(RROutputPtr output, Bool configChanged)
 {
+    /* set changed bits on the master screen only */
     ScreenPtr pScreen = output->pScreen;
+    rrScrPrivPtr mastersp;
 
     output->changed = TRUE;
-    if (pScreen) {
-        rrScrPriv(pScreen);
-        RRSetChanged(pScreen);
-        if (configChanged)
-            pScrPriv->configChanged = TRUE;
+    if (!pScreen)
+        return;
+
+    if (pScreen->isGPU) {
+        ScreenPtr master = pScreen->current_master;
+        if (!master)
+            return;
+        mastersp = rrGetScrPriv(master);
+    }
+    else {
+        mastersp = rrGetScrPriv(pScreen);
     }
+
+    RRSetChanged(pScreen);
+    if (configChanged)
+        mastersp->configChanged = TRUE;
 }
 
 /*
@@ -60,8 +72,8 @@ RROutputCreate(ScreenPtr pScreen,
     pScrPriv = rrGetScrPriv(pScreen);
 
     if (pScrPriv->numOutputs)
-        outputs = realloc(pScrPriv->outputs,
-                          (pScrPriv->numOutputs + 1) * sizeof(RROutputPtr));
+        outputs = reallocarray(pScrPriv->outputs,
+                               pScrPriv->numOutputs + 1, sizeof(RROutputPtr));
     else
         outputs = malloc(sizeof(RROutputPtr));
     if (!outputs)
@@ -124,7 +136,7 @@ RROutputSetClones(RROutputPtr output, RROutputPtr * clones, int numClones)
             return TRUE;
     }
     if (numClones) {
-        newClones = malloc(numClones * sizeof(RROutputPtr));
+        newClones = xallocarray(numClones, sizeof(RROutputPtr));
         if (!newClones)
             return FALSE;
     }
@@ -157,7 +169,7 @@ RROutputSetModes(RROutputPtr output,
     }
 
     if (numModes) {
-        newModes = malloc(numModes * sizeof(RRModePtr));
+        newModes = xallocarray(numModes, sizeof(RRModePtr));
         if (!newModes)
             return FALSE;
     }
@@ -200,8 +212,8 @@ RROutputAddUserMode(RROutputPtr output, RRModePtr mode)
             return BadMatch;
 
     if (output->userModes)
-        newModes = realloc(output->userModes,
-                           (output->numUserModes + 1) * sizeof(RRModePtr));
+        newModes = reallocarray(output->userModes,
+                                output->numUserModes + 1, sizeof(RRModePtr));
     else
         newModes = malloc(sizeof(RRModePtr));
     if (!newModes)
@@ -256,7 +268,7 @@ RROutputSetCrtcs(RROutputPtr output, RRCrtcPtr * crtcs, int numCrtcs)
             return TRUE;
     }
     if (numCrtcs) {
-        newCrtcs = malloc(numCrtcs * sizeof(RRCrtcPtr));
+        newCrtcs = xallocarray(numCrtcs, sizeof(RRCrtcPtr));
         if (!newCrtcs)
             return FALSE;
     }
@@ -531,6 +543,7 @@ ProcRRSetOutputPrimary(ClientPtr client)
     WindowPtr pWin;
     rrScrPrivPtr pScrPriv;
     int ret;
+    ScreenPtr slave;
 
     REQUEST_SIZE_MATCH(xRRSetOutputPrimaryReq);
 
@@ -553,8 +566,19 @@ ProcRRSetOutputPrimary(ClientPtr client)
 
     pScrPriv = rrGetScrPriv(pWin->drawable.pScreen);
     if (pScrPriv)
+    {
         RRSetPrimaryOutput(pWin->drawable.pScreen, pScrPriv, output);
 
+        xorg_list_for_each_entry(slave,
+                                 &pWin->drawable.pScreen->output_slave_list,
+                                 output_head) {
+            rrScrPrivPtr pSlavePriv;
+            pSlavePriv = rrGetScrPriv(slave);
+
+            RRSetPrimaryOutput(slave, pSlavePriv, output);
+        }
+    }
+
     return Success;
 }
 
diff --git a/xserver/randr/rrproperty.c b/xserver/randr/rrproperty.c
index e385e15ab..e56626cd2 100644
--- a/xserver/randr/rrproperty.c
+++ b/xserver/randr/rrproperty.c
@@ -140,7 +140,6 @@ RRChangeOutputProperty(RROutputPtr output, Atom property, Atom type,
     RRPropertyPtr prop;
     rrScrPrivPtr pScrPriv = rrGetScrPriv(output->pScreen);
     int size_in_bytes;
-    int total_size;
     unsigned long total_len;
     RRPropertyValuePtr prop_value;
     RRPropertyValueRec new_value;
@@ -180,9 +179,8 @@ RRChangeOutputProperty(RROutputPtr output, Atom property, Atom type,
     if (mode == PropModeReplace || len > 0) {
         void *new_data = NULL, *old_data = NULL;
 
-        total_size = total_len * size_in_bytes;
-        new_value.data = (void *) malloc(total_size);
-        if (!new_value.data && total_size) {
+        new_value.data = xallocarray(total_len, size_in_bytes);
+        if (!new_value.data && total_len && size_in_bytes) {
             if (add)
                 RRDestroyOutputProperty(prop);
             return BadAlloc;
@@ -350,7 +348,7 @@ RRConfigureOutputProperty(RROutputPtr output, Atom property,
         return BadMatch;
     }
 
-    new_values = malloc(num_values * sizeof(INT32));
+    new_values = xallocarray(num_values, sizeof(INT32));
     if (!new_values && num_values) {
         if (add)
             RRDestroyOutputProperty(prop);
@@ -400,7 +398,7 @@ ProcRRListOutputProperties(ClientPtr client)
     for (prop = output->properties; prop; prop = prop->next)
         numProps++;
     if (numProps)
-        if (!(pAtoms = (Atom *) malloc(numProps * sizeof(Atom))))
+        if (!(pAtoms = xallocarray(numProps, sizeof(Atom))))
             return BadAlloc;
 
     rep = (xRRListOutputPropertiesReply) {
@@ -447,7 +445,7 @@ ProcRRQueryOutputProperty(ClientPtr client)
         return BadName;
 
     if (prop->num_valid) {
-        extra = malloc(prop->num_valid * sizeof(INT32));
+        extra = xallocarray(prop->num_valid, sizeof(INT32));
         if (!extra)
             return BadAlloc;
     }
diff --git a/xserver/randr/rrproviderproperty.c b/xserver/randr/rrproviderproperty.c
index ff2c614d0..b79c17f9b 100644
--- a/xserver/randr/rrproviderproperty.c
+++ b/xserver/randr/rrproviderproperty.c
@@ -350,7 +350,7 @@ RRConfigureProviderProperty(RRProviderPtr provider, Atom property,
         return BadMatch;
     }
 
-    new_values = malloc(num_values * sizeof(INT32));
+    new_values = xallocarray(num_values, sizeof(INT32));
     if (!new_values && num_values) {
         if (add)
             RRDestroyProviderProperty(prop);
@@ -400,7 +400,7 @@ ProcRRListProviderProperties(ClientPtr client)
     for (prop = provider->properties; prop; prop = prop->next)
         numProps++;
     if (numProps)
-        if (!(pAtoms = (Atom *) malloc(numProps * sizeof(Atom))))
+        if (!(pAtoms = xallocarray(numProps, sizeof(Atom))))
             return BadAlloc;
 
     rep = (xRRListProviderPropertiesReply) {
@@ -445,7 +445,7 @@ ProcRRQueryProviderProperty(ClientPtr client)
         return BadName;
 
     if (prop->num_valid) {
-        extra = malloc(prop->num_valid * sizeof(INT32));
+        extra = xallocarray(prop->num_valid, sizeof(INT32));
         if (!extra)
             return BadAlloc;
     }
diff --git a/xserver/randr/rrscreen.c b/xserver/randr/rrscreen.c
index c2a7798e1..d0ca91e0e 100644
--- a/xserver/randr/rrscreen.c
+++ b/xserver/randr/rrscreen.c
@@ -413,8 +413,9 @@ rrGetMultiScreenResources(ClientPtr client, Bool query, ScreenPtr pScreen)
         .nbytesNames = total_name_len
     };
 
-    rep.length = (total_crtcs + total_outputs + total_modes * bytes_to_int32(SIZEOF(xRRModeInfo)) +
-                  bytes_to_int32(rep.nbytesNames));
+    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) {
diff --git a/xserver/randr/rrsdispatch.c b/xserver/randr/rrsdispatch.c
index 47558cf75..cf2a3b024 100644
--- a/xserver/randr/rrsdispatch.c
+++ b/xserver/randr/rrsdispatch.c
@@ -565,6 +565,41 @@ static int SProcRRGetProviderProperty(ClientPtr client)
     return ProcRandrVector[stuff->randrReqType] (client);
 }
 
+static int SProcRRGetMonitors(ClientPtr client) {
+    REQUEST(xRRGetMonitorsReq);
+
+    REQUEST_SIZE_MATCH(xRRGetMonitorsReq);
+    swaps(&stuff->length);
+    swapl(&stuff->window);
+    return ProcRandrVector[stuff->randrReqType] (client);
+}
+
+static int SProcRRSetMonitor(ClientPtr client) {
+    REQUEST(xRRSetMonitorReq);
+
+    REQUEST_AT_LEAST_SIZE(xRRGetMonitorsReq);
+    swaps(&stuff->length);
+    swapl(&stuff->window);
+    swapl(&stuff->monitor.name);
+    swaps(&stuff->monitor.noutput);
+    swaps(&stuff->monitor.x);
+    swaps(&stuff->monitor.y);
+    swaps(&stuff->monitor.width);
+    swaps(&stuff->monitor.height);
+    SwapRestL(stuff);
+    return ProcRandrVector[stuff->randrReqType] (client);
+}
+
+static int SProcRRDeleteMonitor(ClientPtr client) {
+    REQUEST(xRRDeleteMonitorReq);
+
+    REQUEST_SIZE_MATCH(xRRDeleteMonitorReq);
+    swaps(&stuff->length);
+    swapl(&stuff->window);
+    swapl(&stuff->name);
+    return ProcRandrVector[stuff->randrReqType] (client);
+}
+
 int (*SProcRandrVector[RRNumberRequests]) (ClientPtr) = {
     SProcRRQueryVersion,        /* 0 */
 /* we skip 1 to make old clients fail pretty immediately */
@@ -614,4 +649,7 @@ int (*SProcRandrVector[RRNumberRequests]) (ClientPtr) = {
         SProcRRChangeProviderProperty,  /* 39 */
         SProcRRDeleteProviderProperty,  /* 40 */
         SProcRRGetProviderProperty,     /* 41 */
+        SProcRRGetMonitors,            /* 42 */
+        SProcRRSetMonitor,             /* 43 */
+        SProcRRDeleteMonitor,          /* 44 */
 };
diff --git a/xserver/randr/rrtransform.c b/xserver/randr/rrtransform.c
index f3f1b1e65..d32b43aa3 100644
--- a/xserver/randr/rrtransform.c
+++ b/xserver/randr/rrtransform.c
@@ -70,7 +70,7 @@ RRTransformSetFilter(RRTransformPtr dst,
     xFixed *new_params;
 
     if (nparams) {
-        new_params = malloc(nparams * sizeof(xFixed));
+        new_params = xallocarray(nparams, sizeof(xFixed));
         if (!new_params)
             return FALSE;
         memcpy(new_params, params, nparams * sizeof(xFixed));
@@ -196,7 +196,7 @@ RRTransformCompute(int x,
             f_rot_sin = 0;
             f_rot_dx = width;
             f_rot_dy = height;
-            rot_cos = F(-1);
+            rot_cos = F(~0u);
             rot_sin = F(0);
             rot_dx = F(width);
             rot_dy = F(height);
@@ -207,7 +207,7 @@ RRTransformCompute(int x,
             f_rot_dx = 0;
             f_rot_dy = width;
             rot_cos = F(0);
-            rot_sin = F(-1);
+            rot_sin = F(~0u);
             rot_dx = F(0);
             rot_dy = F(width);
             break;
@@ -230,7 +230,7 @@ RRTransformCompute(int x,
         scale_dy = 0;
         if (rotation & RR_Reflect_X) {
             f_scale_x = -1;
-            scale_x = F(-1);
+            scale_x = F(~0u);
             if (rotation & (RR_Rotate_0 | RR_Rotate_180)) {
                 f_scale_dx = width;
                 scale_dx = F(width);
@@ -242,7 +242,7 @@ RRTransformCompute(int x,
         }
         if (rotation & RR_Reflect_Y) {
             f_scale_y = -1;
-            scale_y = F(-1);
+            scale_y = F(~0u);
             if (rotation & (RR_Rotate_0 | RR_Rotate_180)) {
                 f_scale_dy = height;
                 scale_dy = F(height);
diff --git a/xserver/randr/rrxinerama.c b/xserver/randr/rrxinerama.c
index b336bd7cd..b6e9586d7 100644
--- a/xserver/randr/rrxinerama.c
+++ b/xserver/randr/rrxinerama.c
@@ -84,6 +84,8 @@ static int ProcRRXineramaIsActive(ClientPtr client);
 static int ProcRRXineramaQueryScreens(ClientPtr client);
 static int SProcRRXineramaDispatch(ClientPtr client);
 
+Bool noRRXineramaExtension = FALSE;
+
 /* Proc */
 
 int
@@ -147,35 +149,10 @@ ProcRRXineramaGetState(ClientPtr client)
     return Success;
 }
 
-static Bool
-RRXineramaCrtcActive(RRCrtcPtr crtc)
-{
-    return crtc->mode != NULL && crtc->numOutputs > 0;
-}
-
 static int
 RRXineramaScreenCount(ScreenPtr pScreen)
 {
-    int i, n;
-    ScreenPtr slave;
-
-    n = 0;
-    if (rrGetScrPriv(pScreen)) {
-        rrScrPriv(pScreen);
-        for (i = 0; i < pScrPriv->numCrtcs; i++)
-            if (RRXineramaCrtcActive(pScrPriv->crtcs[i]))
-                n++;
-    }
-
-    xorg_list_for_each_entry(slave, &pScreen->output_slave_list, output_head) {
-        rrScrPrivPtr pSlavePriv;
-        pSlavePriv = rrGetScrPriv(slave);
-        for (i = 0; i < pSlavePriv->numCrtcs; i++)
-            if (RRXineramaCrtcActive(pSlavePriv->crtcs[i]))
-                n++;
-    }
-
-    return n;
+    return RRMonitorCountList(pScreen);
 }
 
 static Bool
@@ -274,42 +251,16 @@ ProcRRXineramaIsActive(ClientPtr client)
 }
 
 static void
-RRXineramaWriteCrtc(ClientPtr client, RRCrtcPtr crtc)
+RRXineramaWriteMonitor(ClientPtr client, RRMonitorPtr monitor)
 {
     xXineramaScreenInfo scratch;
 
-    if (RRXineramaCrtcActive(crtc)) {
-        ScreenPtr pScreen = crtc->pScreen;
-        rrScrPrivPtr pScrPriv = rrGetScrPriv(pScreen);
-        BoxRec panned_area;
-
-        /* Check to see if crtc is panned and return the full area when applicable. */
-        if (pScrPriv && pScrPriv->rrGetPanning &&
-            pScrPriv->rrGetPanning(pScreen, crtc, &panned_area, NULL, NULL) &&
-            (panned_area.x2 > panned_area.x1) &&
-            (panned_area.y2 > panned_area.y1)) {
-            scratch.x_org = panned_area.x1;
-            scratch.y_org = panned_area.y1;
-            scratch.width = panned_area.x2 - panned_area.x1;
-            scratch.height = panned_area.y2 - panned_area.y1;
-        }
-        else {
-            int width, height;
-
-            RRCrtcGetScanoutSize(crtc, &width, &height);
-            scratch.x_org = crtc->x;
-            scratch.y_org = crtc->y;
-            scratch.width = width;
-            scratch.height = height;
-        }
-        if (client->swapped) {
-            swaps(&scratch.x_org);
-            swaps(&scratch.y_org);
-            swaps(&scratch.width);
-            swaps(&scratch.height);
-        }
-        WriteToClient(client, sz_XineramaScreenInfo, &scratch);
-    }
+    scratch.x_org = monitor->geometry.box.x1;
+    scratch.y_org = monitor->geometry.box.y1;
+    scratch.width = monitor->geometry.box.x2 - monitor->geometry.box.x1;
+    scratch.height = monitor->geometry.box.y2 - monitor->geometry.box.y1;
+
+    WriteToClient(client, sz_XineramaScreenInfo, &scratch);
 }
 
 int
@@ -317,21 +268,23 @@ ProcRRXineramaQueryScreens(ClientPtr client)
 {
     xXineramaQueryScreensReply rep;
     ScreenPtr pScreen = screenInfo.screens[RR_XINERAMA_SCREEN];
-    int n = 0;
-    int i;
+    int m;
+    RRMonitorPtr monitors = NULL;
+    int nmonitors = 0;
 
     REQUEST_SIZE_MATCH(xXineramaQueryScreensReq);
 
     if (RRXineramaScreenActive(pScreen)) {
         RRGetInfo(pScreen, FALSE);
-        n = RRXineramaScreenCount(pScreen);
+        if (!RRMonitorMakeList(pScreen, TRUE, &monitors, &nmonitors))
+            return BadAlloc;
     }
 
     rep = (xXineramaQueryScreensReply) {
         .type = X_Reply,
         .sequenceNumber = client->sequence,
-        .length = bytes_to_int32(n * sz_XineramaScreenInfo),
-        .number = n
+        .length = bytes_to_int32(nmonitors * sz_XineramaScreenInfo),
+        .number = nmonitors
     };
     if (client->swapped) {
         swaps(&rep.sequenceNumber);
@@ -340,40 +293,11 @@ ProcRRXineramaQueryScreens(ClientPtr client)
     }
     WriteToClient(client, sizeof(xXineramaQueryScreensReply), &rep);
 
-    if (n) {
-        ScreenPtr slave;
-        rrScrPriv(pScreen);
-        int has_primary = 0;
-        RRCrtcPtr primary_crtc = NULL;
-
-        if (pScrPriv->primaryOutput && pScrPriv->primaryOutput->crtc) {
-            has_primary = 1;
-            primary_crtc = pScrPriv->primaryOutput->crtc;
-            RRXineramaWriteCrtc(client, pScrPriv->primaryOutput->crtc);
-        }
-
-        for (i = 0; i < pScrPriv->numCrtcs; i++) {
-            if (has_primary &&
-                primary_crtc == pScrPriv->crtcs[i]) {
-                has_primary = 0;
-                continue;
-            }
-            RRXineramaWriteCrtc(client, pScrPriv->crtcs[i]);
-        }
-
-        xorg_list_for_each_entry(slave, &pScreen->output_slave_list, output_head) {
-            rrScrPrivPtr pSlavePriv;
-            pSlavePriv = rrGetScrPriv(slave);
-            for (i = 0; i < pSlavePriv->numCrtcs; i++) {
-                if (has_primary &&
-                    primary_crtc == pSlavePriv->crtcs[i]) {
-                    has_primary = 0;
-                    continue;
-                }
-                RRXineramaWriteCrtc(client, pSlavePriv->crtcs[i]);
-            }
-        }
-    }
+    for (m = 0; m < nmonitors; m++)
+        RRXineramaWriteMonitor(client, &monitors[m]);
+
+    if (monitors)
+        RRMonitorFreeList(monitors, nmonitors);
 
     return Success;
 }
@@ -488,6 +412,9 @@ RRXineramaExtensionInit(void)
         return;
 #endif
 
+    if (noRRXineramaExtension)
+      return;
+
     /*
      * Xinerama isn't capable enough to have multiple protocol screens each
      * with their own output geometry.  So if there's more than one protocol