[PATCH 4/4] ddraw: Do not use unset viewport in viewport_activate().

[Józef Kucia]

Signed-off-by: Józef Kucia <jkucia at codeweavers.com>
---
 dlls/ddraw/viewport.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/dlls/ddraw/viewport.c b/dlls/ddraw/viewport.c
index 8cc60f1eb158..e6f862156ea7 100644
--- a/dlls/ddraw/viewport.c
+++ b/dlls/ddraw/viewport.c
@@ -68,6 +68,12 @@ void viewport_activate(struct d3d_viewport *This, BOOL ignore_lights)
         }
     }
 
+    if (This->version == DDRAW_VIEWPORT_VERSION_NONE)
+    {
+        TRACE("Viewport data was not set.\n");
+        return;
+    }
+
     /* And copy the values in the structure used by the device */
     if (This->version == DDRAW_VIEWPORT_VERSION_2)
     {
-- 
2.18.1