wined3d: Print an error when drawStridedSlow() is called with 0 idxSize and non-NULL idxData. (CID 509)

[Henri Verbeet]

---
 dlls/wined3d/drawprim.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/dlls/wined3d/drawprim.c b/dlls/wined3d/drawprim.c
index 95af758..512d85c 100644
--- a/dlls/wined3d/drawprim.c
+++ b/dlls/wined3d/drawprim.c
@@ -318,6 +318,9 @@ static void drawStridedSlow(IWineD3DDevice *iface, WineDirect3DVertexStridedData
 
         if (idxSize == 2) pIdxBufS = (const WORD *) idxData;
         else pIdxBufL = (const DWORD *) idxData;
+    } else if (idxData) {
+        ERR("non-NULL idxData with 0 idxSize, this should never happen\n");
+        return;
     }
 
     /* Adding the stream offset once is cheaper than doing it every iteration. Do not modify the strided data, it is a pointer
-- 
1.5.6.4



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