Use SrcPitch when calculating size of memory to map PresentDisplayOnly

Otherwise, can result in a BSOD.

1 files changed, 1 insertions, 1 deletions

diff --git a/qxldod/QxlDod.cpp b/qxldod/QxlDod.cpp
index 9d13934..7b60e0c 100755
--- a/qxldod/QxlDod.cpp
+++ b/qxldod/QxlDod.cpp
@@ -3606,7 +3606,7 @@ QxlDevice::ExecutePresentDisplayOnly(
 

     {

         // Map Source into kernel space, as Blt will be executed by system worker thread

-        UINT sizeToMap = SrcBytesPerPixel * ctx->SrcWidth * ctx->SrcHeight;

+        UINT sizeToMap = ctx->SrcPitch * ctx->SrcHeight;

 

         PMDL mdl = IoAllocateMdl((PVOID)SrcAddr, sizeToMap,  FALSE, FALSE, NULL);

         if(!mdl)