Changeset 34377 in vbox for trunk

Timestamp:

Nov 25, 2010 3:40:13 PM (14 years ago)

Author:

vboxsync

Message:

Main/Display: check framebuffer before updating it.

File:

• trunk/src/VBox/Main/DisplayImpl.cpp (modified) (3 diffs)

trunk/src/VBox/Main/DisplayImpl.cpp

@@ -2672 +2672 @@
     for (uScreenId = 0; uScreenId < pDisplay->mcMonitors; uScreenId++)
     {
-        if (uScreenId == VBOX_VIDEO_PRIMARY_SCREEN)
+        DISPLAYFBINFO *pFBInfo = &pDisplay->maFramebuffers[uScreenId];
+
+        if (uScreenId == VBOX_VIDEO_PRIMARY_SCREEN && !pFBInfo->pFramebuffer.isNull())
         {
             pDisplay->mpDrv->pUpPort->pfnUpdateDisplayAll(pDisplay->mpDrv->pUpPort);
@@ -2678 +2680 @@
         else
         {
-            DISPLAYFBINFO *pFBInfo = &pDisplay->maFramebuffers[uScreenId];
-
             if (!pFBInfo->pFramebuffer.isNull())
             {
@@ -3680 +3680 @@
         {
             /* Make sure that framebuffer contains the same image as the guest VRAM. */
-            if (uScreenId == VBOX_VIDEO_PRIMARY_SCREEN)
+            if (uScreenId == VBOX_VIDEO_PRIMARY_SCREEN && !pFBInfo->pFramebuffer.isNull())
             {
                 pDrv->pUpPort->pfnUpdateDisplayRect (pDrv->pUpPort, pCmd->x, pCmd->y, pCmd->w, pCmd->h);