fix pitch of the frame buffer when the resolution changes

1 files changed, 5 insertions, 14 deletions

diff --git a/C++/bdd_dmm.cxx b/C++/bdd_dmm.cxx
index dd3baaa..15d21e1 100644
--- a/C++/bdd_dmm.cxx
+++ b/C++/bdd_dmm.cxx
@@ -754,28 +754,19 @@ NTSTATUS BASIC_DISPLAY_DRIVER::SetSourceModeAndPath(CONST D3DKMDT_VIDPN_SOURCE_M
     LogMessage("%s: New message\n", __FUNCTION__);

     pCurrentBddMode->Scaling = pPath->ContentTransformation.Scaling;

     // yonit: I changed it to be the visible region.

-        LogMessage("%s: set mode size: SurfSize %ux%u visible %ux%u pixel format %d\n", __FUNCTION__,

+        LogMessage("%s: set mode size: SurfSize %ux%u visible %ux%u pixel format %d stride %ld\n", __FUNCTION__,

          pSourceMode->Format.Graphics.PrimSurfSize.cx, pSourceMode->Format.Graphics.PrimSurfSize.cy,

           pSourceMode->Format.Graphics.VisibleRegionSize.cx, pSourceMode->Format.Graphics.VisibleRegionSize.cy,

-         pSourceMode->Format.Graphics.PixelFormat);

-        

-    /*pCurrentBddMode->SrcModeWidth = pSourceMode->Format.Graphics.PrimSurfSize.cx;

-    pCurrentBddMode->SrcModeHeight = pSourceMode->Format.Graphics.PrimSurfSize.cy; // ???

-    pCurrentBddMode->Rotation = pPath->ContentTransformation.Rotation;*/

+         pSourceMode->Format.Graphics.PixelFormat,

+         pSourceMode->Format.Graphics.Stride);

+

     pCurrentBddMode->SrcModeWidth = pSourceMode->Format.Graphics.VisibleRegionSize.cx; //pSourceMode->Format.Graphics.PrimSurfSize.cx;

     pCurrentBddMode->SrcModeHeight = pSourceMode->Format.Graphics.VisibleRegionSize.cy; // ???

     pCurrentBddMode->Rotation = pPath->ContentTransformation.Rotation;

     

     pCurrentBddMode->DispInfo.Width = pSourceMode->Format.Graphics.PrimSurfSize.cx;

    pCurrentBddMode->DispInfo.Height = pSourceMode->Format.Graphics.PrimSurfSize.cy;

-    pCurrentBddMode->DispInfo.Pitch = pSourceMode->Format.Graphics.Stride;

-    // don't copy pixel format. it is 32bit (A888), while the disp is 24-bit 

-    //pCurrentBddMode->DispInfo.ColorFormat = pSourceMode->Format.Graphics.PixelFormat;

-            /*LogMessage("%s: set mode size: SurfSize %ux%u visible %ux%u pixel format %d\n", __FUNCTION__,

-          pCurrentBddMode->DispInfo.Width, pCurrentBddMode->DispInfo.Height,

-         pCurrentBddMode->SrcModeWidth,  pCurrentBddMode->SrcModeHeight,

-         pCurrentBddMode->DispInfo.ColorFormat);*/

-

+   pCurrentBddMode->DispInfo.Pitch = pSourceMode->Format.Graphics.PrimSurfSize.cx * BPPFromPixelFormat(pCurrentBddMode->DispInfo.ColorFormat)/8;

 

     if (!pCurrentBddMode->Flags.DoNotMapOrUnmap)

     {