[PATCH v3] dxgi/tests: Check that the last adapter is always WARP.

[Rémi Bernon]

Some games specifically ignore the last adapter from the adapter list,
as it's always WARP on Windows. This makes them fail to detect GPUs
correctly on Wine, as they drop one of the reported adapters.

Signed-off-by: Rémi Bernon 
---

v3: Add a new condition for the windows version <= 7 that don't expose
    WARP adapters. I couldn't really test it though as I don't have
    access to a Win7 machine and the testbot win7 VM fail to enumerate
    their adapters before reaching there.

dlls/dxgi/tests/dxgi.c | 44 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 44 insertions(+)

diff --git a/dlls/dxgi/tests/dxgi.c b/dlls/dxgi/tests/dxgi.c
index ce1aee5ee3b..2e3ea1720f8 100644
--- a/dlls/dxgi/tests/dxgi.c
+++ b/dlls/dxgi/tests/dxgi.c
@@ -5326,9 +5326,12 @@ static void test_multi_adapter(void)
     unsigned int output_count = 0, expected_output_count = 0;
     unsigned int adapter_index, output_index, device_index;
     DXGI_OUTPUT_DESC old_output_desc, output_desc;
+    DXGI_ADAPTER_DESC1 adapter_desc1;
+    DXGI_ADAPTER_DESC adapter_desc;
     DISPLAY_DEVICEW display_device;
     MONITORINFO monitor_info;
     DEVMODEW old_mode, mode;
+    IDXGIAdapter1 *adapter1;
     IDXGIFactory *factory;
     IDXGIAdapter *adapter;
     IDXGIOutput *output;
@@ -5530,6 +5533,47 @@ static void test_multi_adapter(void)
         IDXGIAdapter_Release(adapter);
     }

+    /* Win8+ always have a WARP adapter present at the end */
+    todo_wine ok(adapter_index >= 2, "Unexpected adapter count %u.\n", adapter_index);
+    if (broken(adapter_index < 2) /* <= Win7 */)
+    {
+        win_skip("WARP adapter missing, skipping tests\n");
+        goto done;
+    }
+
+    hr = IDXGIFactory_EnumAdapters(factory, adapter_index - 1, &adapter);
+    ok(SUCCEEDED(hr), "Failed to get the last adapter %u, hr %#x.\n", adapter_index - 1, hr);
+    hr = IDXGIAdapter_GetDesc(adapter, &adapter_desc);
+    ok(SUCCEEDED(hr), "GetDesc failed, hr %#x.\n", hr);
+    todo_wine ok(!lstrcmpW(adapter_desc.Description, L"Microsoft Basic Render Driver"),
+            "Unexpected name for the last adapter %s.\n", wine_dbgstr_w(adapter_desc.Description));
+    todo_wine ok(adapter_desc.VendorId == 0x1414, "Expected VendorId 0x1414, got %#x.\n",
+            adapter_desc.VendorId);
+    todo_wine ok(adapter_desc.DeviceId == 0x008c, "Expected DeviceId 0x008c, got %#x.\n",
+            adapter_desc.DeviceId);
+    ok(adapter_desc.SubSysId == 0x0000, "Expected SubSysId 0x0000, got %#x.\n",
+            adapter_desc.SubSysId);
+    ok(adapter_desc.Revision == 0x0000, "Expected Revision 0x0000, got %#x.\n",
+            adapter_desc.Revision);
+    todo_wine ok(adapter_desc.DedicatedVideoMemory == 0,
+            "Expected DedicatedVideoMemory 0, got %#lx.\n", adapter_desc.DedicatedVideoMemory);
+    ok(adapter_desc.DedicatedSystemMemory == 0, "Expected DedicatedSystemMemory 0, got %#lx.\n",
+            adapter_desc.DedicatedSystemMemory);
+
+    hr = IDXGIAdapter_QueryInterface(adapter, &IID_IDXGIAdapter1, (void **)&adapter1);
+    ok(SUCCEEDED(hr) || broken(hr == E_NOINTERFACE), "Got unexpected hr %#x.\n", hr);
+    if (SUCCEEDED(hr))
+    {
+        hr = IDXGIAdapter1_GetDesc1(adapter1, &adapter_desc1);
+        ok(SUCCEEDED(hr), "GetDesc1 failed, hr %#x.\n", hr);
+        todo_wine ok(adapter_desc1.Flags == DXGI_ADAPTER_FLAG_SOFTWARE,
+                "Expected flags DXGI_ADAPTER_FLAG_SOFTWARE, got %#x.\n", adapter_desc1.Flags);
+        IDXGIAdapter1_Release(adapter1);
+    }
+
+    IDXGIAdapter_Release(adapter);
+
+done:
     IDXGIFactory_Release(factory);

expected_output_count = GetSystemMetrics(SM_CMONITORS);