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wined3d: Avoid crashing when ProcessVertices is called with NULL vertex declaration.
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@ -5437,6 +5437,10 @@ static HRESULT WINAPI IWineD3DDeviceImpl_ProcessVertices(IWineD3DDevice *iface,
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WineDirect3DVertexStridedData strided;
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TRACE("(%p)->(%d,%d,%d,%p,%p,%ld\n", This, SrcStartIndex, DestIndex, VertexCount, pDestBuffer, pVertexDecl, Flags);
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if (!SrcImpl) {
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WARN("NULL source vertex buffer\n");
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return WINED3DERR_INVALIDCALL;
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}
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/* We don't need the source vbo because this buffer is only used as
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* a source for ProcessVertices. Avoid wasting resources by converting the
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* buffer and loading the VBO
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