Changeset 55245 in vbox

Timestamp:

Apr 14, 2015 12:59:39 PM (9 years ago)

Author:

vboxsync

Message:

WDDM: experimantal fix against VBVA ring buffer overflow.

File:

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

-              r55227
+              r55245
      * Estimate max 4KB per command.
      */
+    ULONG cbCmdVbva = VBOXCMDVBVA_BUFFERSIZE(4096);
+    //ULONG cbCmdVbva = VBOXCMDVBVA_BUFFERSIZE(4096);
+    ULONG cbCmdVbva = RT_MIN(_4M, cbAvailable / 4); /* <- temporary fix against ring buffer overflow. */
     if (cbCmdVbva >= cbAvailable)

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