Changeset 54567 in vbox

Timestamp:

Feb 27, 2015 8:33:12 PM (10 years ago)

Author:

vboxsync

Message:

DisplayImpl: handle VBVA_SCREEN_F_BLANK

File:

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

trunk/src/VBox/Main/src-client/DisplayImpl.cpp

@@ -1002 +1002 @@
     /* No updates for a disabled guest screen. */
     if (maFramebuffers[uScreenId].fDisabled)
+        return;
+
+    /* No updates for a blank guest screen. */
+    if (maFramebuffers[uScreenId].flags & VBVA_SCREEN_F_BLANK)
         return;
 
@@ -2719 +2723 @@
     }
 
+    DISPLAYFBINFO *pFBInfo = &maFramebuffers[aScreenId];
+
+    /* No source bitmap for a blank guest screen. */
+    if (pFBInfo->flags & VBVA_SCREEN_F_BLANK)
+    {
+        aDisplaySourceBitmap = NULL;
+        return E_FAIL;
+    }
+
     HRESULT hr = S_OK;
 
-    DISPLAYFBINFO *pFBInfo = &maFramebuffers[aScreenId];
     if (pFBInfo->pSourceBitmap.isNull())
     {
@@ -3887 +3899 @@
     }
 
+    /* If the screen if blanked, then do a resize request to make sure that the framebuffer
+     * switches to the default format.
+     */
+    fResize = fResize || RT_BOOL(pScreen->u16Flags & VBVA_SCREEN_F_BLANK);
+
     /* Check if this is a real resize or a notification about the screen origin.
      * The guest uses this VBVAResize call for both.