Merge remote-tracking branch 'origin/released'

Conflicts:
	libxcb/src/c_client.py
	mesalib/include/GL/glext.h
	mesalib/include/GL/glxext.h
	mesalib/src/glsl/.gitignore
	mesalib/src/mesa/drivers/dri/common/xmlconfig.h
	mesalib/src/mesa/main/.gitignore
	xorg-server/Xext/xvmain.c
	xorg-server/dix/dispatch.c
	xorg-server/hw/xfree86/common/compiler.h

1 files changed, 13 insertions, 8 deletions

diff --git a/xorg-server/present/present.c b/xorg-server/present/present.c
index 6528bd231..c0b83f705 100644
--- a/xorg-server/present/present.c
+++ b/xorg-server/present/present.c
@@ -291,14 +291,18 @@ present_window_to_crtc_msc(WindowPtr window, RRCrtcPtr crtc, uint64_t window_msc
     if (crtc != window_priv->crtc) {
         uint64_t        old_ust, old_msc;
 
-        /* The old CRTC may have been turned off, in which case
-         * we'll just use whatever previous MSC we'd seen from this CRTC
-         */
+        if (window_priv->crtc == PresentCrtcNeverSet) {
+            window_priv->msc_offset = 0;
+        } else {
+            /* The old CRTC may have been turned off, in which case
+             * we'll just use whatever previous MSC we'd seen from this CRTC
+             */
 
-        if (present_get_ust_msc(window->drawable.pScreen, window_priv->crtc, &old_ust, &old_msc) != Success)
-            old_msc = window_priv->msc;
+            if (present_get_ust_msc(window->drawable.pScreen, window_priv->crtc, &old_ust, &old_msc) != Success)
+                old_msc = window_priv->msc;
 
-        window_priv->msc_offset += new_msc - old_msc;
+            window_priv->msc_offset += new_msc - old_msc;
+        }
         window_priv->crtc = crtc;
     }
 
@@ -395,7 +399,8 @@ present_set_abort_flip(ScreenPtr screen)
         present_set_tree_pixmap(screen_priv->flip_window,
                                   (*screen->GetScreenPixmap)(screen));
 
-    present_set_tree_pixmap(screen->root, (*screen->GetScreenPixmap)(screen));
+    if (screen->root)
+        present_set_tree_pixmap(screen->root, (*screen->GetScreenPixmap)(screen));
 
     screen_priv->flip_pending->abort_flip = TRUE;
 }
@@ -725,7 +730,7 @@ present_pixmap(WindowPtr window,
         if (!pixmap)
             target_crtc = window_priv->crtc;
 
-        if (!target_crtc)
+        if (!target_crtc || target_crtc == PresentCrtcNeverSet)
             target_crtc = present_get_crtc(window);
     }