[PATCH 3/5] d3d10core/tests: Test creating and rendering to a swapchain on the desktop window.

[Zebediah Figura]

From: Zebediah Figura

Signed-off-by: Zebediah Figura 
---
 dlls/d3d10core/tests/d3d10core.c | 39 ++++++++++++++++++++++++++++++++
 1 file changed, 39 insertions(+)

diff --git a/dlls/d3d10core/tests/d3d10core.c b/dlls/d3d10core/tests/d3d10core.c
index ecf1f3814726..1403ef5d9abd 100644
--- a/dlls/d3d10core/tests/d3d10core.c
+++ b/dlls/d3d10core/tests/d3d10core.c
@@ -17981,6 +17981,43 @@ static void test_render_a8(void)
     release_test_context(&test_context);
 }

+static void test_desktop_window(void)
+{
+    ID3D10RenderTargetView *backbuffer_rtv;
+    ID3D10Texture2D *backbuffer;
+    IDXGISwapChain *swapchain;
+    ID3D10Device *device;
+    ULONG refcount;
+    HRESULT hr;
+
+    static const float red[] = {1.0f, 0.0f, 0.0f, 1.0f};
+
+    if (!(device = create_device()))
+    {
+        skip("Failed to create device.\n");
+        return;
+    }
+
+    swapchain = create_swapchain(device, GetDesktopWindow(), NULL);
+    hr = IDXGISwapChain_GetBuffer(swapchain, 0, &IID_ID3D10Texture2D, (void **)&backbuffer);
+    ok(SUCCEEDED(hr), "Failed to get buffer, hr %#x.\n", hr);
+
+    hr = ID3D10Device_CreateRenderTargetView(device, (ID3D10Resource *)backbuffer, NULL, &backbuffer_rtv);
+    ok(SUCCEEDED(hr), "Failed to create rendertarget view, hr %#x.\n", hr);
+
+    ID3D10Device_ClearRenderTargetView(device, backbuffer_rtv, red);
+    check_texture_color(backbuffer, 0xff0000ff, 1);
+
+    hr = IDXGISwapChain_Present(swapchain, 0, 0);
+    ok(hr == S_OK, "Got unexpected hr %#x.\n", hr);
+
+    ID3D10RenderTargetView_Release(backbuffer_rtv);
+    ID3D10Texture2D_Release(backbuffer);
+    IDXGISwapChain_Release(swapchain);
+    refcount = ID3D10Device_Release(device);
+    ok(!refcount, "Device has %u references left.\n", refcount);
+}
+
 START_TEST(d3d10core)
 {
     unsigned int argc, i;
@@ -18099,6 +18136,8 @@ START_TEST(d3d10core)
     queue_test(test_staging_buffers);
     queue_test(test_render_a8);

+    test_desktop_window();
+
     run_queued_tests();

/* There should be no reason this test can't be run in parallel with the