diff --git a/dlls/d3d9/tests/visual.c b/dlls/d3d9/tests/visual.c
index 162620f921b..20e3eb941aa 100644
--- a/dlls/d3d9/tests/visual.c
+++ b/dlls/d3d9/tests/visual.c
@@ -21804,6 +21804,133 @@ static void test_line_antialiasing_blending(void)
     DestroyWindow(window);
 }
 
+static void test_dsy(void)
+{
+    static const DWORD vs_code[] =
+    {
+        0xfffe0300,                         /* vs_3_0 */
+        0x0200001f, 0x80000000, 0x900f0000, /* dcl_position v0 */
+        0x0200001f, 0x8000000a, 0x900f0001, /* dcl_color0 v1 */
+        0x0200001f, 0x80000000, 0xe00f0000, /* dcl_position o0 */
+        0x0200001f, 0x8000000a, 0xe00f0001, /* dcl_color0 o1 */
+        0x02000001, 0xe00f0000, 0x90e40000, /* mov o0, v0 */
+        0x02000001, 0xe00f0001, 0x90e40001, /* mov o1, v1 */
+        0x0000ffff
+    };
+    static const DWORD ps_code[] =
+    {
+        0xffff0300,                                                             /* ps_3_0 */
+        0x0200001f, 0x8000000a, 0x900f0000,                                     /* dcl_color0 v0 */
+        0x05000051, 0xa00f0000, 0x43700000, 0x3f000000, 0x00000000, 0x00000000, /* def c0, 240.0, 0.5, 0.0, 0.0 */
+        0x0200005c, 0x800f0000, 0x90e40000,                                     /* dsy r0, v0 */
+        0x03000005, 0x800f0000, 0x80e40000, 0xa0000000,                         /* mul r0, r0, c0.x */
+        0x03000002, 0x800f0800, 0x80e40000, 0xa0550000,                         /* add oC0, r0, c0.y */
+        0x0000ffff
+    };
+    static const struct
+    {
+        struct vec3 pos;
+        D3DCOLOR color;
+    }
+    quad[] =
+    {
+        {{-1.0f, -1.0f, 0.1f}, 0x00ff0000},
+        {{-1.0f,  1.0f, 0.1f}, 0x0000ff00},
+        {{ 1.0f, -1.0f, 0.1f}, 0x00ff0000},
+        {{ 1.0f,  1.0f, 0.1f}, 0x0000ff00},
+    };
+    IDirect3DSurface9 *backbuffer, *rt;
+    IDirect3DVertexShader9 *vs;
+    IDirect3DPixelShader9 *ps;
+    IDirect3DDevice9 *device;
+    IDirect3D9 *d3d;
+    ULONG refcount;
+    D3DCAPS9 caps;
+    DWORD color;
+    HWND window;
+    HRESULT hr;
+
+    window = create_window();
+    d3d = Direct3DCreate9(D3D_SDK_VERSION);
+    ok(!!d3d, "Failed to create a D3D object.\n");
+    if (!(device = create_device(d3d, window, window, TRUE)))
+    {
+        skip("Failed to create a D3D device, skipping tests.\n");
+        goto done;
+    }
+
+    hr = IDirect3DDevice9_GetDeviceCaps(device, &caps);
+    ok(SUCCEEDED(hr), "Failed to get device caps, hr %#x.\n", hr);
+    if (caps.PixelShaderVersion < D3DPS_VERSION(3, 0))
+    {
+        skip("No ps_3_0 support, skipping dsy tests.\n");
+        IDirect3DDevice9_Release(device);
+        goto done;
+    }
+
+    hr = IDirect3DDevice9_GetBackBuffer(device, 0, 0, D3DBACKBUFFER_TYPE_MONO, &backbuffer);
+    ok(SUCCEEDED(hr), "Failed to get backbuffer, hr %#x.\n", hr);
+
+    hr = IDirect3DDevice9_CreateRenderTarget(device, 640, 480, D3DFMT_A8R8G8B8,
+            D3DMULTISAMPLE_NONE, 0, FALSE, &rt, NULL);
+    ok(SUCCEEDED(hr), "Failed to create offscreen render target, hr %#x.\n", hr);
+    hr = IDirect3DDevice9_SetRenderTarget(device, 0, rt);
+    ok(SUCCEEDED(hr), "Failed to set render target, hr %#x.\n", hr);
+
+    hr = IDirect3DDevice9_CreateVertexShader(device, vs_code, &vs);
+    ok(SUCCEEDED(hr), "Failed to create vertex shader, hr %#x.\n", hr);
+    hr = IDirect3DDevice9_CreatePixelShader(device, ps_code, &ps);
+    ok(SUCCEEDED(hr), "Failed to create pixel shader, 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_SetVertexShader(device, vs);
+    ok(SUCCEEDED(hr), "Failed to set vertex shader, hr %#x.\n", hr);
+    hr = IDirect3DDevice9_SetPixelShader(device, ps);
+    ok(SUCCEEDED(hr), "Failed to set pixel shader, hr %#x.\n", hr);
+
+    hr = IDirect3DDevice9_Clear(device, 0, NULL, D3DCLEAR_TARGET | D3DCLEAR_ZBUFFER, 0xff000000, 1.0f, 0);
+    ok(SUCCEEDED(hr), "Failed to clear, hr %#x.\n", hr);
+    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 primitive, hr %#x.\n", hr);
+    hr = IDirect3DDevice9_EndScene(device);
+    ok(SUCCEEDED(hr), "Failed to end scene, hr %#x.\n", hr);
+
+    color = getPixelColor(device, 360, 240);
+    ok(color_match(color, 0x00ff007f, 1), "Got unexpected color 0x%08x.\n", color);
+
+    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 | D3DCLEAR_ZBUFFER, 0xff000000, 1.0f, 0);
+    ok(SUCCEEDED(hr), "Failed to clear, hr %#x.\n", hr);
+    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[0]));
+    ok(SUCCEEDED(hr), "Failed to draw primitive, hr %#x.\n", hr);
+    hr = IDirect3DDevice9_EndScene(device);
+    ok(SUCCEEDED(hr), "Failed to end scene, hr %#x.\n", hr);
+
+    color = getPixelColor(device, 360, 240);
+    ok(color_match(color, 0x00ff007f, 1), "Got unexpected color 0x%08x.\n", color);
+
+    hr = IDirect3DDevice9_Present(device, NULL, NULL, NULL, NULL);
+    ok(SUCCEEDED(hr), "Failed to present frame, hr %#x.\n", hr);
+
+    IDirect3DSurface9_Release(rt);
+    IDirect3DSurface9_Release(backbuffer);
+    IDirect3DVertexShader9_Release(vs);
+    IDirect3DPixelShader9_Release(ps);
+
+    refcount = IDirect3DDevice9_Release(device);
+    ok(!refcount, "Device has %u references left.\n", refcount);
+done:
+    IDirect3D9_Release(d3d);
+    DestroyWindow(window);
+}
+
 START_TEST(visual)
 {
     D3DADAPTER_IDENTIFIER9 identifier;
@@ -21928,4 +22055,5 @@ START_TEST(visual)
     test_texture_blending();
     test_color_clamping();
     test_line_antialiasing_blending();
+    test_dsy();
 }