Changeset 60175 in vbox for trunk/src/VBox/Devices/Graphics

Timestamp:

Mar 23, 2016 5:15:23 PM (9 years ago)

Author:

vboxsync

Message:

DevVGA: fixed taking screenshot when Windows guest displays BSOD

File:

• trunk/src/VBox/Devices/Graphics/DevVGA.cpp (modified) (3 diffs)

trunk/src/VBox/Devices/Graphics/DevVGA.cpp

@@ -5231 +5231 @@
     }
 
+    int rc = PDMCritSectEnter(&pThis->CritSect, VERR_SEM_BUSY);
+    AssertRC(rc);
+
+    /* This method only works if the VGA device is in a VBE mode. */
+    if ((pThis->vbe_regs[VBE_DISPI_INDEX_ENABLE] & VBE_DISPI_ENABLED) == 0)
+    {
+        PDMCritSectLeave(&pThis->CritSect);
+        return VERR_INVALID_STATE;
+    }
+
     /* Choose the rendering function. */
     switch (cSrcBitsPerPixel)
@@ -5237 +5247 @@
         case 0:
             /* Nothing to do, just return. */
+            PDMCritSectLeave(&pThis->CritSect);
             return VINF_SUCCESS;
         case 8:
@@ -5253 +5264 @@
             v = VGA_DRAW_LINE32;
             break;
-    }
-
-    int rc = PDMCritSectEnter(&pThis->CritSect, VERR_SEM_BUSY);
-    AssertRC(rc);
-
-    /* This method only works if the VGA device is in a VBE mode. */
-    if ((pThis->vbe_regs[VBE_DISPI_INDEX_ENABLE] & VBE_DISPI_ENABLED) == 0)
-    {
-        PDMCritSectLeave(&pThis->CritSect);
-        return VERR_INVALID_STATE;
     }