Changeset 57848 in vbox for trunk/src/VBox/Additions

Timestamp:

Sep 22, 2015 7:23:10 AM (10 years ago)

Author:

vboxsync

svn:sync-xref-src-repo-rev:

102802

Message:

Additions/Graphics/WDDM: Mark allocations as visible to the CPU so we can lock it from the user mode driver, fixes video playback with Windows Media Player if 3D is disabled (xTracker #8040)

File:

• trunk/src/VBox/Additions/WINNT/Graphics/Video/mp/wddm/VBoxMPWddm.cpp (modified) (1 diff)

trunk/src/VBox/Additions/WINNT/Graphics/Video/mp/wddm/VBoxMPWddm.cpp

@@ -2577 +2577 @@
                                 Assert(pAllocation->AllocData.SurfDesc.cbSize);
 
-//                                if (!pAllocInfo->fFlags.SharedResource && !pAllocInfo->hostID)
-//                                    pAllocationInfo->Flags.CpuVisible = 1;
-
-                                Assert(!pAllocationInfo->Flags.CpuVisible);
+                                /*
+                                 * Mark the allocation as visible to the CPU so we can
+                                 * lock it in the user mode driver for SYSTEM pool allocations.
+                                 * See @bugref{8040} for further information.
+                                 */
+                                if (!pAllocInfo->fFlags.SharedResource && !pAllocInfo->hostID)
+                                    pAllocationInfo->Flags.CpuVisible = 1;
 
                                 if (pAllocInfo->fFlags.SharedResource)