d3d11/tests: Disable cross-device ContextState tests.

dlls/d3d11/tests/d3d11.c

@@ -7422,7 +7422,20 @@ static void test_device_context_state(void)
     refcount = ID3D11VertexShader_Release(tmp_vs);
     ok(refcount == 1, "Got refcount %u, expected 1.\n", refcount);
 
-    /* context states may be used with other devices instances too */
+    /* context states may be used with other devices instances too
+     *
+     * Or at least, no error is returned right away. Using objects like shaders
+     * from other device instances causes a segfault later on Nvidia Windows
+     * drivers. This suggests the feature tested below is more a bug than a
+     * feature.
+     *
+     * The tests below suggest that a ContextState object stores its own state
+     * for every device it is used with. This isn't entirely true, e.g. the
+     * primitive topology can be transfered between devices, but will cause odd
+     * refcounting behavior afterwards (IAGetPrimitiveTopology will leak 54
+     * references on the context's device for example). */
+    if (0)
+    {
         d3d11_device2 = create_device(NULL);
         ok(!!d3d11_device2, "Failed to create device.\n");
         hr = ID3D11Device_QueryInterface(d3d11_device2, &IID_ID3D11Device1, (void **)&device2);
@@ -7464,8 +7477,8 @@ static void test_device_context_state(void)
 
         /* clearing the vertex shader on context doesn't have side effect on context2 */
         ID3D11DeviceContext1_VSSetShader(context, NULL, NULL, 0);
-    refcount = ID3D11VertexShader_Release(vs2);
-    ok(refcount == 0, "Got refcount %u, expected 0.\n", refcount);
+        refcount = get_refcount(vs2);
+        ok(refcount == 1, "Got refcount %u, expected 1.\n", refcount);
         tmp_vs = (ID3D11VertexShader *)0xdeadbeef;
         ID3D11DeviceContext1_VSGetShader(context2, &tmp_vs, NULL, NULL);
         ok(tmp_vs == vs, "Got shader %p, expected %p.\n", tmp_vs, vs);
@@ -7490,6 +7503,7 @@ static void test_device_context_state(void)
         ok(refcount == 0, "Got refcount %u, expected 0.\n", refcount);
         refcount = ID3D11Device1_Release(device2);
         ok(refcount == 0, "Got refcount %u, expected 0.\n", refcount);
+    }
 
     ID3D11DeviceContext1_SwapDeviceContextState(context, previous_context_state, &tmp_context_state);
     refcount = ID3DDeviceContextState_Release(previous_context_state);
@@ -8158,6 +8172,7 @@ static void test_device_context_state(void)
     if (hs) ID3D11HullShader_Release(hs);
     ID3D11PixelShader_Release(ps);
     ID3D11GeometryShader_Release(gs);
+    ID3D11VertexShader_Release(vs2);
     ID3D11VertexShader_Release(vs);
     ID3D11Buffer_Release(cb);
     ID3D11ShaderResourceView_Release(srv);