1 files changed, 23 insertions, 0 deletions
diff --git a/src/gallium/state_trackers/nine/swapchain9.c b/src/gallium/state_trackers/nine/swapchain9.c
index c8d3ca15890..5d05f1f4697 100644
--- a/src/gallium/state_trackers/nine/swapchain9.c
+++ b/src/gallium/state_trackers/nine/swapchain9.c
@@ -787,6 +787,19 @@ NineSwapChain9_Present( struct NineSwapChain9 *This,
     if (hr == D3DERR_WASSTILLDRAWING)
         return hr;
 
+    if (This->base.device->ex) {
+        if (NineSwapChain9_GetOccluded(This)) {
+            return S_PRESENT_OCCLUDED;
+        }
+    } else {
+        if (NineSwapChain9_GetOccluded(This)) {
+            This->base.device->device_needs_reset = TRUE;
+        }
+        if (This->base.device->device_needs_reset) {
+            return D3DERR_DEVICELOST;
+        }
+    }
+
     switch (This->params.SwapEffect) {
         case D3DSWAPEFFECT_FLIP:
             UNTESTED(4);
@@ -992,3 +1005,13 @@ NineSwapChain9_new( struct NineDevice9 *pDevice,
                           implicit, pPresent, pPresentationParameters,
                           pCTX, hFocusWindow, NULL);
 }
+
+BOOL
+NineSwapChain9_GetOccluded( struct NineSwapChain9 *This )
+{
+    if (This->base.device->minor_version_num > 0) {
+        return ID3DPresent_GetWindowOccluded(This->present);
+    }
+
+    return FALSE;
+}