d3d9/tests: Add d3d9ex test for backbuffer resize.

dlls/d3d9/tests/d3d9ex.c

@@ -3600,6 +3600,107 @@ static void test_swapchain_parameters(void)
     DestroyWindow(window);
 }
 
+static void test_backbuffer_resize(void)
+{
+    D3DPRESENT_PARAMETERS present_parameters = {0};
+    IDirect3DSurface9 *backbuffer, *old_backbuffer;
+    D3DSURFACE_DESC surface_desc;
+    IDirect3DDevice9Ex *device;
+    D3DCOLOR color;
+    ULONG refcount;
+    HWND window;
+    HRESULT hr;
+
+    static const struct
+    {
+        float position[3];
+        DWORD diffuse;
+    }
+    quad[] =
+    {
+        {{-1.0f, -1.0f, 0.1f}, D3DCOLOR_ARGB(0xff, 0x00, 0xff, 0x00)},
+        {{-1.0f,  1.0f, 0.1f}, D3DCOLOR_ARGB(0xff, 0x00, 0xff, 0x00)},
+        {{ 1.0f, -1.0f, 0.1f}, D3DCOLOR_ARGB(0xff, 0x00, 0xff, 0x00)},
+        {{ 1.0f,  1.0f, 0.1f}, D3DCOLOR_ARGB(0xff, 0x00, 0xff, 0x00)},
+    };
+
+    window = create_window();
+    if (!(device = create_device(window, NULL)))
+    {
+        skip("Failed to create a D3D device.\n");
+        DestroyWindow(window);
+        return;
+    }
+
+    hr = IDirect3DDevice9_SetRenderState(device, D3DRS_CLIPPING, FALSE);
+    ok(SUCCEEDED(hr), "Failed to disable clipping, hr %#x.\n", hr);
+    hr = IDirect3DDevice9_SetRenderState(device, D3DRS_ZENABLE, FALSE);
+    ok(SUCCEEDED(hr), "Failed to disable Z test, hr %#x.\n", hr);
+    hr = IDirect3DDevice9_SetRenderState(device, D3DRS_LIGHTING, FALSE);
+    ok(SUCCEEDED(hr), "Failed to disable lighting, hr %#x.\n", hr);
+    hr = IDirect3DDevice9_SetFVF(device, D3DFVF_XYZ | D3DFVF_DIFFUSE);
+    ok(SUCCEEDED(hr), "Failed to set FVF, hr %#x.\n", hr);
+
+    hr = IDirect3DDevice9_GetBackBuffer(device, 0, 0, D3DBACKBUFFER_TYPE_MONO, &backbuffer);
+    ok(SUCCEEDED(hr), "Failed to get backbuffer, hr %#x.\n", hr);
+    hr = IDirect3DDevice9_SetRenderTarget(device, 0, backbuffer);
+    ok(SUCCEEDED(hr), "Failed to set render target, hr %#x.\n", hr);
+
+    hr = IDirect3DDevice9_Clear(device, 0, NULL, D3DCLEAR_TARGET, 0xffff0000, 1.0f, 0);
+    ok(SUCCEEDED(hr), "Failed to clear, hr %#x.\n", hr);
+    color = get_pixel_color(device, 1, 1);
+    ok(color == 0x00ff0000, "Got unexpected color 0x%08x.\n", color);
+
+    present_parameters.BackBufferWidth = 800;
+    present_parameters.BackBufferHeight = 600;
+    present_parameters.BackBufferFormat = D3DFMT_A8R8G8B8;
+    present_parameters.SwapEffect = D3DSWAPEFFECT_DISCARD;
+    present_parameters.hDeviceWindow = NULL;
+    present_parameters.Windowed = TRUE;
+    present_parameters.EnableAutoDepthStencil = TRUE;
+    present_parameters.AutoDepthStencilFormat = D3DFMT_D24S8;
+    hr = IDirect3DDevice9_Reset(device, &present_parameters);
+    ok(SUCCEEDED(hr), "Failed to reset, hr %#x.\n", hr);
+
+    old_backbuffer = backbuffer;
+    hr = IDirect3DSurface9_GetDesc(old_backbuffer, &surface_desc);
+    ok(SUCCEEDED(hr), "Failed to get surface desc, hr %#x.\n", hr);
+    todo_wine ok(surface_desc.Width == 640, "Got unexpected width %u.\n", surface_desc.Width);
+    todo_wine ok(surface_desc.Height == 480, "Got unexpected height %u.\n", surface_desc.Height);
+    refcount = IDirect3DSurface9_Release(old_backbuffer);
+    ok(!refcount, "Surface has %u references left.\n", refcount);
+
+    hr = IDirect3DDevice9_GetBackBuffer(device, 0, 0, D3DBACKBUFFER_TYPE_MONO, &backbuffer);
+    ok(SUCCEEDED(hr), "Failed to get backbuffer, hr %#x.\n", hr);
+    todo_wine ok(backbuffer != old_backbuffer, "Expected new backbuffer surface.\n");
+
+    hr = IDirect3DDevice9_SetRenderTarget(device, 0, backbuffer);
+    ok(SUCCEEDED(hr), "Failed to set render target, hr %#x.\n", hr);
+
+    hr = IDirect3DDevice9_Clear(device, 0, NULL, D3DCLEAR_TARGET, 0xffffff00, 1.0f, 0);
+    ok(SUCCEEDED(hr), "Failed to clear, hr %#x.\n", hr);
+    color = get_pixel_color(device, 1, 1);
+    ok(color == 0x00ffff00, "Got unexpected color 0x%08x.\n", color);
+    color = get_pixel_color(device, 700, 500);
+    ok(color == 0x00ffff00, "Got unexpected color 0x%08x.\n", color);
+
+    hr = IDirect3DDevice9_BeginScene(device);
+    ok(SUCCEEDED(hr), "Failed to begin scene, hr %#x.\n", hr);
+    hr = IDirect3DDevice9_DrawPrimitiveUP(device, D3DPT_TRIANGLESTRIP, 2, quad, sizeof(*quad));
+    ok(SUCCEEDED(hr), "Failed to draw, hr %#x.\n", hr);
+    hr = IDirect3DDevice9_EndScene(device);
+    ok(SUCCEEDED(hr), "Failed to end scene, hr %#x.\n", hr);
+    color = get_pixel_color(device, 1, 1);
+    ok(color == 0x0000ff00, "Got unexpected color 0x%08x.\n", color);
+    color = get_pixel_color(device, 700, 500);
+    ok(color == 0x0000ff00, "Got unexpected color 0x%08x.\n", color);
+
+    IDirect3DSurface9_Release(backbuffer);
+    refcount = IDirect3DDevice9_Release(device);
+    ok(!refcount, "Device has %u references left.\n", refcount);
+    DestroyWindow(window);
+}
+
 START_TEST(d3d9ex)
 {
     DEVMODEW current_mode;
@@ -3647,4 +3748,5 @@ START_TEST(d3d9ex)
     test_wndproc_windowed();
     test_window_style();
     test_swapchain_parameters();
+    test_backbuffer_resize();
 }