d3d8/tests: Test multisample flip.

dlls/d3d8/tests/visual.c

@@ -8067,6 +8067,51 @@ static void test_flip(void)
 
     refcount = IDirect3DDevice8_Release(device);
     ok(!refcount, "Device has %u references left.\n", refcount);
+
+    if (FAILED(IDirect3D8_CheckDeviceMultiSampleType(d3d, D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL,
+            D3DFMT_A8R8G8B8, TRUE, D3DMULTISAMPLE_2_SAMPLES)))
+    {
+        skip("Multisampling not supported for D3DFMT_A8R8G8B8, skipping multisample flip test.\n");
+        goto done;
+    }
+
+    present_parameters.BackBufferCount = 2;
+    present_parameters.MultiSampleType = D3DMULTISAMPLE_2_SAMPLES;
+    present_parameters.Flags = 0;
+    hr = IDirect3D8_CreateDevice(d3d, D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL,
+            window, D3DCREATE_SOFTWARE_VERTEXPROCESSING, &present_parameters, &device);
+
+    for (i = 0; i < present_parameters.BackBufferCount; ++i)
+    {
+        hr = IDirect3DDevice8_GetBackBuffer(device, i, D3DBACKBUFFER_TYPE_MONO, &back_buffers[i]);
+        ok(SUCCEEDED(hr), "Failed to get back buffer, hr %#x.\n", hr);
+    }
+
+    hr = IDirect3DDevice8_SetRenderTarget(device, back_buffers[1], NULL);
+    ok(SUCCEEDED(hr), "Failed to set render target, hr %#x.\n", hr);
+    hr = IDirect3DDevice8_Clear(device, 0, NULL, D3DCLEAR_TARGET, 0xff808080, 0.0f, 0);
+    ok(SUCCEEDED(hr), "Failed to clear, hr %#x.\n", hr);
+
+    hr = IDirect3DDevice8_Present(device, NULL, NULL, NULL, NULL);
+    ok(SUCCEEDED(hr), "Failed to present, hr %#x.\n", hr);
+
+    hr = IDirect3DDevice8_CreateRenderTarget(device, 640, 480, D3DFMT_A8R8G8B8,
+            D3DMULTISAMPLE_NONE, TRUE, &test_surface);
+    ok(SUCCEEDED(hr), "Failed to create surface, hr %#x.\n", hr);
+    hr = IDirect3DDevice8_CopyRects(device, back_buffers[0], NULL, 0, test_surface, NULL);
+    ok(SUCCEEDED(hr), "CopyRects failed, hr %#x.\n", hr);
+
+    color = get_surface_color(test_surface, 1, 1);
+    ok(color == 0xff808080, "Got unexpected color 0x%08x.\n", color);
+
+    IDirect3DSurface8_Release(test_surface);
+    for (i = 0; i < present_parameters.BackBufferCount; ++i)
+        IDirect3DSurface8_Release(back_buffers[i]);
+
+    refcount = IDirect3DDevice8_Release(device);
+    ok(!refcount, "Device has %u references left.\n", refcount);
+
+done:
     IDirect3D8_Release(d3d);
     DestroyWindow(window);
 }