d3dx10: Implement D3DX10GetFeatureLevel1().

dlls/d3dx10_43/Makefile.in

 MODULE    = d3dx10_43.dll
 IMPORTLIB = d3dx10
-IMPORTS   = d3d10_1
+IMPORTS   = d3d10_1 dxguid
 
 C_SRCS = \
 	d3dx10_43_main.c

dlls/d3dx10_43/d3dx10_43.spec

@@ -48,7 +48,7 @@
 @ stub D3DX10CreateTextureFromResourceA(ptr long str ptr ptr ptr ptr)
 @ stub D3DX10CreateTextureFromResourceW(ptr long wstr ptr ptr ptr ptr)
 @ stub D3DX10FilterTexture(ptr long long)
-@ stub D3DX10GetFeatureLevel1(ptr ptr)
+@ stdcall D3DX10GetFeatureLevel1(ptr ptr)
 @ stub D3DX10GetImageInfoFromFileA(str ptr ptr ptr)
 @ stub D3DX10GetImageInfoFromFileW(wstr ptr ptr ptr)
 @ stub D3DX10GetImageInfoFromMemory(ptr long ptr ptr ptr)

dlls/d3dx10_43/d3dx10_43_main.c

@@ -142,3 +142,10 @@ HRESULT WINAPI D3DX10CreateDevice(IDXGIAdapter *adapter, D3D10_DRIVER_TYPE drive
 
     return hr;
 }
+
+HRESULT WINAPI D3DX10GetFeatureLevel1(ID3D10Device *device, ID3D10Device1 **device1)
+{
+    TRACE("device %p, device1 %p.\n", device, device1);
+
+    return ID3D10Device_QueryInterface(device, &IID_ID3D10Device1, (void **)device1);
+}

include/d3dx10core.idl

@@ -68,3 +68,4 @@ interface ID3DX10ThreadPump : IUnknown
 cpp_quote("HRESULT WINAPI D3DX10UnsetAllDeviceObjects(ID3D10Device *device);")
 cpp_quote("HRESULT WINAPI D3DX10CreateDevice(IDXGIAdapter *adapter, D3D10_DRIVER_TYPE driver_type,")
 cpp_quote("        HMODULE swrast, unsigned int flags, ID3D10Device **device);")
+cpp_quote("HRESULT WINAPI D3DX10GetFeatureLevel1(ID3D10Device *device, ID3D10Device1 **device1);")