d3dx9: D3DXCreateMesh rejects declarations with non-zero streams.

dlls/d3dx9_36/mesh.c

@@ -1132,6 +1132,7 @@ HRESULT WINAPI D3DXCreateMesh(DWORD numfaces, DWORD numvertices, DWORD options,
     D3DFORMAT index_format = D3DFMT_INDEX16;
     DWORD vertex_usage = 0;
     D3DPOOL vertex_pool = D3DPOOL_DEFAULT;
+    int i;
 
     TRACE("(%d, %d, %x, %p, %p, %p)\n", numfaces, numvertices, options, declaration, device, mesh);
 
@@ -1141,6 +1142,9 @@ HRESULT WINAPI D3DXCreateMesh(DWORD numfaces, DWORD numvertices, DWORD options,
     {
         return D3DERR_INVALIDCALL;
     }
+    for (i = 0; declaration[i].Stream != 0xff; i++)
+        if (declaration[i].Stream != 0)
+            return D3DERR_INVALIDCALL;
 
     if (options & D3DXMESH_32BIT)
         index_format = D3DFMT_INDEX32;

dlls/d3dx9_36/tests/mesh.c

@@ -1036,6 +1036,12 @@ static void D3DXCreateMeshTest(void)
         D3DDECL_END(),
     };
 
+    static const D3DVERTEXELEMENT9 decl3[] = {
+        {0, 0, D3DDECLTYPE_FLOAT3, D3DDECLMETHOD_DEFAULT, D3DDECLUSAGE_POSITION, 0},
+        {1, 0, D3DDECLTYPE_FLOAT3, D3DDECLMETHOD_DEFAULT, D3DDECLUSAGE_NORMAL, 0},
+        D3DDECL_END(),
+    };
+
     hr = D3DXCreateMesh(0, 0, 0, NULL, NULL, NULL);
     ok(hr == D3DERR_INVALIDCALL, "Got result %x, expected %x (D3DERR_INVALIDCALL)\n", hr, D3DERR_INVALIDCALL);
 
@@ -1213,6 +1219,10 @@ static void D3DXCreateMeshTest(void)
         d3dxmesh->lpVtbl->Release(d3dxmesh);
     }
 
+    /* Test a declaration with multiple streams. */
+    hr = D3DXCreateMesh(1, 3, D3DXMESH_MANAGED, decl3, device, &d3dxmesh);
+    ok(hr == D3DERR_INVALIDCALL, "Got result %x, expected %x (D3DERR_INVALIDCALL)\n", hr, D3DERR_INVALIDCALL);
+
     IDirect3DDevice9_Release(device);
     IDirect3D9_Release(d3d);
     DestroyWindow(wnd);