d3d9/tests: Add test for readback from multisample front buffer.

dlls/d3d9/tests/visual.c

@@ -16249,6 +16249,78 @@ done:
     DestroyWindow(window);
 }
 
+static void test_multisample_get_front_buffer_data(void)
+{
+    IDirect3DSwapChain9 *swapchain;
+    D3DPRESENT_PARAMETERS d3dpp;
+    IDirect3DSurface9 *readback;
+    IDirect3DTexture9 *texture;
+    IDirect3DDevice9 *device;
+    IDirect3D9 *d3d;
+    ULONG refcount;
+    HWND window;
+    DWORD color;
+    HRESULT hr;
+
+    window = create_window();
+    d3d = Direct3DCreate9(D3D_SDK_VERSION);
+    ok(!!d3d, "Failed to create D3D object.\n");
+    if (FAILED(IDirect3D9_CheckDeviceMultiSampleType(d3d, D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL,
+            D3DFMT_A8R8G8B8, TRUE, D3DMULTISAMPLE_2_SAMPLES, NULL)))
+    {
+        skip("Multisampling not supported for D3DFMT_A8R8G8B8.\n");
+        goto done;
+    }
+    if (!(device = create_device(d3d, window, window, FALSE)))
+    {
+        skip("Failed to create D3D device.\n");
+        goto done;
+    }
+
+    hr = IDirect3DDevice9_GetSwapChain(device, 0, &swapchain);
+    ok(hr == D3D_OK, "Failed to get the implicit swapchain, hr %#x.\n", hr);
+    hr = IDirect3DSwapChain9_GetPresentParameters(swapchain, &d3dpp);
+    ok(hr == D3D_OK, "Failed to get present parameters, hr %#x.\n", hr);
+    IDirect3DSwapChain9_Release(swapchain);
+    d3dpp.MultiSampleType = D3DMULTISAMPLE_2_SAMPLES;
+    d3dpp.MultiSampleQuality = 0;
+    hr = IDirect3DDevice9_Reset(device, &d3dpp);
+    ok(hr == D3D_OK, "Failed to reset device, hr %#x.\n", hr);
+
+    hr = IDirect3DDevice9_Clear(device, 0, NULL, D3DCLEAR_TARGET, 0x00f0ff0f, 0.0, 0);
+    ok(SUCCEEDED(hr), "Failed to clear render target, hr %#x.\n", hr);
+    hr = IDirect3DDevice9_Present(device, NULL, NULL, NULL, NULL);
+    ok(SUCCEEDED(hr), "Failed to present, hr %#x.\n", hr);
+
+    hr = IDirect3DDevice9_CreateOffscreenPlainSurface(device, 640, 480, D3DFMT_A8R8G8B8,
+            D3DPOOL_SYSTEMMEM, &readback, NULL);
+    ok(SUCCEEDED(hr), "Failed to create readback surface, hr %#x.\n", hr);
+    hr = IDirect3DDevice9_GetFrontBufferData(device, 0, readback);
+    ok(hr == D3D_OK, "Got unexpected hr %#x.\n", hr);
+    color = getPixelColorFromSurface(readback, 320, 240);
+    ok(color == 0x00f0ff0f, "Got unexpected color 0x%08x.\n", color);
+    IDirect3DSurface9_Release(readback);
+
+    hr = IDirect3DDevice9_CreateTexture(device, 640, 480, 1,
+            0, D3DFMT_A8R8G8B8, D3DPOOL_SYSTEMMEM, &texture, NULL);
+    ok(SUCCEEDED(hr), "Failed to create texture, hr %#x.\n", hr);
+
+    hr = IDirect3DTexture9_GetSurfaceLevel(texture, 0, &readback);
+    ok(SUCCEEDED(hr), "Failed to create surface, hr %#x.\n", hr);
+    hr = IDirect3DDevice9_GetFrontBufferData(device, 0, readback);
+    ok(hr == D3D_OK, "Got unexpected hr %#x.\n", hr);
+    color = getPixelColorFromSurface(readback, 320, 240);
+    ok(color == 0x00f0ff0f, "Got unexpected color 0x%08x.\n", color);
+    IDirect3DSurface9_Release(readback);
+    IDirect3DTexture9_Release(texture);
+
+    refcount = IDirect3DDevice9_Release(device);
+    ok(!refcount, "Device has %u references left.\n", refcount);
+done:
+    IDirect3D9_Release(d3d);
+    DestroyWindow(window);
+}
+
 static void multisampled_depth_buffer_test(void)
 {
     IDirect3DDevice9 *device = 0;
@@ -23839,6 +23911,7 @@ START_TEST(visual)
     srgbwrite_format_test();
     update_surface_test();
     multisample_get_rtdata_test();
+    test_multisample_get_front_buffer_data();
     zenable_test();
     fog_special_test();
     volume_srgb_test();