[Spice-devel] [RFC PATCH qxl-wddm-dod 14/28] Comment out frame buffer mapping.

[Dmitry Fleytman]

From: Sandy Stutsman <sstutsma at redhat.com>

WDDM DOD driver doesn't touch the frame buffer (bar0), so no reason to map in into memory.
Especially as there were rare BSOD failures when the mapping failed.  Leaving the code
in place so it clear where the frame buffer should be mapped if we need to do it in the future.
---
 qxldod/QxlDod.cpp | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/qxldod/QxlDod.cpp b/qxldod/QxlDod.cpp
index e6c4ada..ff987c4 100755
--- a/qxldod/QxlDod.cpp
+++ b/qxldod/QxlDod.cpp
@@ -218,7 +218,9 @@ VOID QxlDod::CleanUp(VOID)
     {
         if (m_CurrentModes[Source].FrameBuffer.Ptr)
         {
+#ifdef USE_FRAMEBUFFER
             UnmapFrameBuffer(m_CurrentModes[Source].FrameBuffer.Ptr, m_CurrentModes[Source].DispInfo.Height * m_CurrentModes[Source].DispInfo.Pitch);
+#endif
             m_CurrentModes[Source].FrameBuffer.Ptr = NULL;
             m_CurrentModes[Source].Flags.FrameBufferIsActive = FALSE;
         }
@@ -1393,8 +1395,10 @@ NTSTATUS QxlDod::CommitVidPn(_In_ CONST DXGKARG_COMMITVIDPN* CONST pCommitVidPn)
     if (m_CurrentModes[pCommitVidPn->AffectedVidPnSourceId].FrameBuffer.Ptr &&
         !m_CurrentModes[pCommitVidPn->AffectedVidPnSourceId].Flags.DoNotMapOrUnmap)
     {
+#ifdef USE_FRAMEBUFFER
         Status = UnmapFrameBuffer(m_CurrentModes[pCommitVidPn->AffectedVidPnSourceId].FrameBuffer.Ptr,
                                   m_CurrentModes[pCommitVidPn->AffectedVidPnSourceId].DispInfo.Pitch * m_CurrentModes[pCommitVidPn->AffectedVidPnSourceId].DispInfo.Height);
+#endif
         m_CurrentModes[pCommitVidPn->AffectedVidPnSourceId].FrameBuffer.Ptr = NULL;
         m_CurrentModes[pCommitVidPn->AffectedVidPnSourceId].Flags.FrameBufferIsActive = FALSE;
 
@@ -1521,7 +1525,7 @@ NTSTATUS QxlDod::SetSourceModeAndPath(CONST D3DKMDT_VIDPN_SOURCE_MODE* pSourceMo
     pCurrentBddMode->DispInfo.Height = pSourceMode->Format.Graphics.PrimSurfSize.cy;
     pCurrentBddMode->DispInfo.Pitch = pSourceMode->Format.Graphics.PrimSurfSize.cx * BPPFromPixelFormat(pCurrentBddMode->DispInfo.ColorFormat) / BITS_PER_BYTE;
 
-
+#ifdef USE_FRAMEBUFFER
     if (!pCurrentBddMode->Flags.DoNotMapOrUnmap)
     {
         // Map the new frame buffer
@@ -1530,7 +1534,7 @@ NTSTATUS QxlDod::SetSourceModeAndPath(CONST D3DKMDT_VIDPN_SOURCE_MODE* pSourceMo
                                 pCurrentBddMode->DispInfo.Pitch * pCurrentBddMode->DispInfo.Height,
                                 &(pCurrentBddMode->FrameBuffer.Ptr));
     }
-
+#endif
     if (NT_SUCCESS(Status))
     {
 
-- 
1.8.3.1